CN101958206B - Miniature circuit breaker operation mechanism capable of realizing multi-control input and output - Google Patents
Miniature circuit breaker operation mechanism capable of realizing multi-control input and output Download PDFInfo
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- CN101958206B CN101958206B CN 200910250728 CN200910250728A CN101958206B CN 101958206 B CN101958206 B CN 101958206B CN 200910250728 CN200910250728 CN 200910250728 CN 200910250728 A CN200910250728 A CN 200910250728A CN 101958206 B CN101958206 B CN 101958206B
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Abstract
The invention relates to an operation mechanism of a miniature circuit breaker. A handle, a first connecting rod, a second connecting rod and a third connecting rod of a main mechanism body are respectively articulated and connected by a first articulated shaft, a second articulated shaft and a third articulated shaft; the handle, a lock buckle, a skipping buckle and the third connecting rod are pivotally arranged on a first fixing plate and a second fixing plate by a first rotating shaft, a second rotating shaft, a third rotating shaft and a fourth rotating shaft; an auxiliary contact support of an auxiliary contact device is pivotally arranged on the fourth rotating shaft; an indicating piece of a display output device is pivotally arranged on the second rotating shaft; a release rod is arranged on the first fixing plate; the fourth rotating shaft is arranged on one side of a contacted surface near the release rod; and the second rotating shaft is arranged on one side near an extending direction of the handle. The operation mechanism not only can optionally access to an input device and an output device, but also has a product compact and reasonable in structure, small in volume and good in operation performance for the optimization design of a structural layout and is convenient to assemble, debug and produce in large scale.
Description
Technical field
The present invention relates to the operating mechanism of a kind of operating mechanism of low-voltage miniature circuit breaker, particularly a kind of selective protective breaker.
Background technology
Miniature circuit breaker is a kind of switching device with defencive function that generally uses in the low-voltage electric system, and operating mechanism is one of its critical piece.By operating mechanism, can make circuit breaker realize the on/off of main circuit is controlled (be called for short and control output), also can make circuit breaker accept external world's control and the on/off (abbreviation control inputs) of execution main circuit." control inputs " described in this specification refers to that by the control inputs of this mechanical action and power, control operation mechanism executes the task, disjunction or the closure of this task as making contact apparatus with the form of mechanical action and the power control inputs to operating mechanism; Described " control output " refer to operating mechanism with the formal output of mechanical action and power to controlled control output device, so that control output device conversion operating state.The acceptable control inputs of the operating mechanism of traditional miniature circuit breaker seldom, as everyone knows manual operation control, the control of the electromagnetic trip when short trouble occurs.The executable control output of traditional miniature circuit breaker also seldom often can only be controlled the closure/disjunction of a contact system.
The operating mechanism kind of miniature circuit breaker is a lot of at present, and version is also varied.Typically, for example the patent No. is disclosed miniature circuit breaker in the ZL89101031 Chinese patent, structure and the operating process thereof of the operating mechanism of traditional miniature circuit breaker is described in detail.This operating mechanism is accepted only the control inputs of an electromagnetic tripping apparatus and is carried out only the control output of a contact apparatus; because its attainable control inputs and control output are few, so its defencive function can not satisfy the market demand that operating mechanism can be realized multi-control input and output (being control inputs/output) far away.
The operating mechanism of the miniature circuit breaker of multi-control input and output refers to: described operating mechanism not only can be under the control of a plurality of control inputs devices the executable operations task, but also can control a plurality of control output device conversion operating states.The control inputs device, except hand gear, a variety of in addition, wherein commonly used have electromagnetic tripping apparatus, thermal release device and a pneumatic trip gear etc., these trip gears all need respectively or common and operating mechanism coupling, carry out the operation of main circuit on/off with control operation mechanism.The control output device, except a traditional contact system, modern operating mechanism also needs to comprise main contact device, auxiliary contact device and display unit etc., these devices all need be subjected to the control output of operating mechanism and the conversion operating state.For example; selective protective breaker requires operating mechanism can not only keep manual operation function; but also requirement can be accepted the control inputs of an electromagnetic tripping apparatus and two bimetal leaf trip gears, and the operating state conversion that can also control a main contact device, an auxiliary contact device and a display unit.The operating mechanism of realizing multi-control I/O that is used for selective protective breaker of prior art is on the basis of existing operating mechanism, has increased further that the structure that is of coupled connections of control inputs/output device and operating mechanism forms.And the element in the existing operating mechanism is directly installed on the shell of circuit breaker, and mechanism element is complicated, so Installation and Debugging are very difficult, manufacture difficulty is large, and production cost is high.And operating mechanism is subjected to the restriction of its four-bar linkage structure and layout, and structure is too disperseed, and is unfavorable for assembling, and thread guide path is long, has to do the volume of circuit breaker larger.In order to realize multi-control I/O, also need to increase control inputs/output device and with the structure that is of coupled connections of operating mechanism, owing to be subjected to the structural limitations of existing operating mechanism, can't the rational deployment bimetal leaf, electromagnetic tripping apparatus, main contact device, the position of each control inputs/output device such as auxiliary contact device, can't simplify the structure that each control inputs/output device and existing operating mechanism are of coupled connections, not only make breaker structure more complicated and huge, and because of the electrical connection node of inside many, thread guide path is long, causes manufacturing, assembling, debug more difficult and when taking a lot of work.Because being subjected to the structural limitations of existing operating mechanism, can not require to carry out rational power for multi-control I/O is design, cause the increase of irrational power of having a contest and frictional force between the movement parts, operating physical force is large, the action of movement parts is dumb, thereby kinematic dexterity and the movement velocity of the movement parts of operating mechanism are descended, and the prior art operating mechanism can only be installed in the bindiny mechanism's release lever that shares on the casing, seriously limit control inputs/output device and carried out according to actual needs rational integral structure layout, thereby wasted limited expensive real estate in the circuit breaker.
Summary of the invention
The object of the invention is to overcome the defective of above-mentioned prior art; a kind of operating mechanism of low-voltage circuit breaker of satisfied miniature circuit breaker development need of new generation is provided; the new solution of the operating mechanism by integral module formula structure that adopt to optimize; control inputs/output device planning can not only be arranged on the optimum position in the casing, and can satisfy the instructions for use that multi-control input and output device accesses the operating mechanism of the selective protective breaker that requires.
For achieving the above object, the operating mechanism of the miniature circuit breaker of multi-control input and output of realizing of the present invention has adopted following technical scheme.
A kind of operating mechanism of realizing the miniature circuit breaker of multi-control input and output, comprise main body 100, auxiliary contact device 300, show output device 500 and selectively control output device with at least one control inputs device of main body 100 phase configuration with at least one, described control inputs device refers to bimetal leaf trip gear 200, electromagnetic tripping apparatus 600 or pneumatic trip gear etc., described control output device refers to main contact device 400, auxiliary unit etc., described operating mechanism main body 100 comprises handle 104, handle back-moving spring 105, first connecting rod 101, second connecting rod 102, third connecting rod 103, snap close 109, tripping 110, push rod 117, spring 115, snap close back-moving spring 116, the first rotating shaft 106, the second rotating shaft 120, the 3rd rotating shaft 107, the 4th rotating shaft 108, the first jointed shaft 111, the second jointed shaft 112 and the 3rd jointed shaft 113.Main body 100 also comprises the first fixed head 118, the second fixed head 119, release lever 121 and interlocking structure 130; Described handle 104 is installed on the first fixed head 118 and the second fixed head 119 pivotally by the first rotating shaft 106, handle 104 is connected with an end of first connecting rod 101 by the first jointed shaft 111, the other end of first connecting rod 101 is connected with an end of second connecting rod 102 by the second jointed shaft 112, and the other end of second connecting rod 102 is connected with third connecting rod 103 by the 3rd jointed shaft 113; Described snap close 109 is installed on the first fixed head 118 and the second fixed head 119 pivotally by the second rotating shaft 120, and described tripping 110 is installed on the first fixed head 118 and the second fixed head 119 pivotally by the 3rd rotating shaft 107; One end of described third connecting rod 103 is installed on the first fixed head 118 and the second fixed head 119 pivotally by the 4th rotating shaft 108, the other end is by the 4th jointed shaft 114 and push rod 117 chain connections, and the middle part is connected with an end of second connecting rod 102 by the 3rd jointed shaft 113; One end of described spring 115 is connected with the 4th jointed shaft 114, the other end and the first fixed head 118 be connected fixed head 119 and be connected; Described tripping (110) is located to be of coupled connections at interlocking structure (130) with snap close (109), tripping (110) is provided with the first mounting hole (1101), and described the second jointed shaft (112) is installed in the first mounting hole (1101) and can slides along the long axis direction of the first mounting hole (1101); Described release lever 121 is installed on the first fixed head 118 by a guide frame, one end of release lever 121 is of coupled connections with described snap close 109 by main shake-up face 1213, the other end is of coupled connections with corresponding control inputs device by the face of being touched, described release lever 121 identical with the quantity of the corresponding control inputs device that is of coupled connections by the quantity of movable contact face.
Described release lever 121 is provided with the body of rod 1214, main shake-up face 1213 and more than one and is touched face 1211,1212, and these are touched face with stepped distribution, is separately positioned at least one vertical face of the body of rod 1,214 one ends of release lever 121.Described main shake-up face 1213 and to be touched face 1211,1212 surface be a kind of in plane, sphere or the face of cylinder.
Described auxiliary contact device 300 comprises auxiliary contact support 301, auxiliary moving contact 302, auxiliary fixed contact 303, auxiliary contact spring 304; Described auxiliary contact support 301 and the 108 pivot connections of described the 4th rotating shaft, the 4th rotating shaft 108 is installed and is connected with the first fixed head 118, the second fixed head 119, and described auxiliary contact support 301 is of coupled connections by clutch structure and described third connecting rod 103; Described the 4th rotating shaft 108 is arranged near described release lever 121 a plurality of and is touched face 1211, a side of 1212, makes be installed in auxiliary contact device 300 and release lever 121 on the 4th rotating shaft 108 a plurality of be touched nearest between face, the main contact device 400.One end of described auxiliary contact spring 304 supports that with auxiliary contact 301 are connected; The other end of described auxiliary contact spring 304 is connected with third connecting rod 103, perhaps is connected with the first fixed head 118, perhaps is connected with the second fixed head 119; The elastic force of described auxiliary contact spring 304 is for auxiliary moving contact 302 provides closed contact force with auxiliary fixed contact 303.
Described guide frame comprises the body of rod 1214 that is formed on the release lever 121 and the first guide pad 1181, the second guide pad 1182, the 3rd guide pad 1183 that are formed on the first fixed head 118, the body of rod 1214 is installed between the first guide pad 1181 and the second guide pad 1182, the 3rd guide pad 1183 with form slidably, release lever 121 can only be moved along the direction that is limited by the first guide pad 1181, the second guide pad 1182, the 3rd guide pad 1183, can not from guide frame, freely deviate from; Perhaps, described guide frame comprises the body of rod that is formed on the release lever 121 and the gathering sill that is formed on the first fixed head 118, the body of rod is installed in the described gathering sill with form slidably, release lever 121 can only be moved along the direction that described gathering sill limits, can not from gathering sill, freely deviate from; Perhaps, described guide frame comprises the chute and at least two slide blocks that are formed on the first fixed head 118 on the body of rod that is formed on the release lever 121, the body of rod by the chute on it with form slidably, between being installed in two slide blocks on the first fixed head 118, release lever 121 can only be moved along the direction that described chute and slide block limit, can not from guide frame, freely deviate from.In described the first guide pad 1181, the second guide pad 1182, the 3rd guide pad 1183, have at least an one-tenth L shaped, its wall with the first fixed head 118 consists of U-lag.
Described display unit 500 comprises indication piece 501, indication piece 501 and the 120 pivot connections of described the second rotating shaft, and described indication piece 501 is of coupled connections by slide construction and auxiliary contact support 301; Described the second rotating shaft 120 is arranged on a side of stretching out direction near handle 104, makes the front of the display unit 500 close miniature circuit breakers that are installed on the second rotating shaft 120.
The related elements of described operating mechanism main body 100, auxiliary contact device 300 and display unit 500 is installed on the first fixed head 118 and the second fixed head 119 jointly, thereby forms independently component unit.
401 are provided with the first actuating arm 4013 and the second actuating arm 4014 in the main contact support of described main contact device 400; Be provided with the first drive surface 4011 at described the first actuating arm 4013, be used for being of coupled connections with the push rod 117 of main body 100; Be provided with the second drive surface 4012 at described the second actuating arm 4014, be used for being of coupled connections with Electromagnetic Control input unit 600.
Described clutch structure comprises the first contact-making surface 1031 of being formed on the third connecting rod 103, be formed on auxiliary contact supports the second contact-making surface 3011 and auxiliary contact spring 304 on 301; Under the effect of auxiliary contact spring 304, by contacting of described the first contact-making surface 1031 and the second contact-making surface 3011, control the disjunction of auxiliary contact device 300, has suitable clearance between open contacts when guaranteeing the disjunction of auxiliary contact device (300), separate to control the closure of auxiliary contact device 300 by described the first contact-making surface 1031 and the second contact-making surface 3011, thereby have enough contact over travel when guaranteeing auxiliary contact device (300) closed.
Described slide construction comprises the round boss 3012 that is formed in the auxiliary contact support 301 and the second mounting hole 5011 that is formed on the indication piece 501; Round boss 3012 is installed in the second mounting hole 5011 with form slidably, and can slide along the long axis direction of the second mounting hole 5011.
Operating mechanism compact conformation of the present invention is reasonable, and good operation performance is convenient to assembling and setting, the electrical connection nodes of circuit breaker inside is greatly reduced, thread guide path shortens greatly, production cost significantly reduces.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the operating mechanism embodiment of the miniature circuit breaker of realizing multi-control I/O of the present invention, and the operating mechanism among the figure and relevant movement parts are in the state of circuit breaker " the normal combined floodgate ".
Fig. 2 is partial structurtes schematic diagram and the main element decomposing schematic representation of another embodiment of operating mechanism of the miniature circuit breaker of realizing multi-control I/O of the present invention, removed the first fixed head and part control inputs/output device than Fig. 1, the operating mechanism among the figure and relevant movement parts are in the state of circuit breaker " the normal combined floodgate ".
Fig. 3 is the partial structurtes schematic diagram of another embodiment of operating mechanism of the miniature circuit breaker of realizing multi-control I/O of the present invention, removed the demonstration output device than Fig. 2, the operating mechanism among the figure and relevant movement parts are in the state of circuit breaker " the normal combined floodgate ".
Fig. 4 is the partial structurtes schematic diagram that is in the embodiment of diverse location with Fig. 3 same operation mechanism, and the operating mechanism among the figure and relevant movement parts are in the state of circuit breaker " short circuit short time-delay ".
Fig. 5 is the structural representation of demonstration output device embodiment of the operating mechanism of the miniature circuit breaker of realizing multi-control I/O of the present invention, and the state of each movement parts is in " closure " display position among the figure.
Fig. 6 is the shape and structure schematic diagram of the first fixed head part embodiment of the operating mechanism of the miniature circuit breaker of realizing multi-control I/O of the present invention.
Fig. 7 is the shape and structure schematic diagram of release lever part embodiment of the operating mechanism of the miniature circuit breaker of realizing multi-control I/O of the present invention.
Fig. 8 is the partial structurtes schematic diagram of the operating mechanism embodiment of the miniature circuit breaker of realizing multi-control I/O of the present invention, and the operating mechanism among the figure and relevant movement parts are in circuit breaker " tripping operation " or " normally separating brake " state.
Embodiment
Describe the embodiment of the operating mechanism of the miniature circuit breaker of realizing multi-control input and output of the present invention in detail below in conjunction with accompanying drawing, the operating mechanism of the miniature circuit breaker of multi-control input and output of realizing of the present invention is not limited to the description of following specific embodiment.
As shown in Figure 1, the operating mechanism of realizing the miniature circuit breaker of multi-control input and output of the present invention, but comprise main body 100, auxiliary contact device 300, show at least one control inputs device and at least one control output device of output device 500 and option and installment.Control inputs device described here refers to one or several in bimetal leaf trip gear 200, electromagnetic tripping apparatus 600, the pneumatic trip gear (not shown), and they can be adaptive and be connected in the main body 100 of operating mechanism of the present invention.Described control output device refers to main contact device 400, auxiliary unit (not shown) or auxiliary contact device 300, main contact device 400, shows the general designation of output device 500, and they can be adaptive and be directly connected in the main body 100 of operating mechanism of the present invention.Operating mechanism of the present invention can be according to designing requirement, selectively one or more in adaptive above-mentioned control inputs device and the control output device.For example: operating mechanism of the present invention is being used in a kind of situation of selective protective breaker, can match a main contact device, auxiliary contact device, one and show that output device, electromagnetic tripping apparatus and a bimetal leaf trip gear of being connected are connected with main body 100; In the situation that is used for common terminal miniature circuit breaker, can match an auxiliary contact and be connected an electromagnetic tripping apparatus and be connected with main body 100.
The overall structure of operating mechanism of the present invention is shown in Fig. 1 to 2, and described main body 100 comprises handle 104, first connecting rod 101, second connecting rod 102, third connecting rod 103, push rod 117, tripping 110, snap close 109, snap close back-moving spring 116, spring 115, handle back-moving spring 105, the first fixed head 118, the second fixed head 119, release lever 121, the first rotating shaft 102, the second rotating shaft 120, the 3rd rotating shaft 107, the 4th rotating shaft 108, the first jointed shaft 111, the second jointed shaft 112, the 3rd jointed shaft 113, the 4th jointed shaft 114.Described handle 104 is installed on the first fixed head 118 and the second fixed head 119 pivotally by the first rotating shaft 106, and by the end chain connection of the first jointed shaft 111 with first connecting rod 101, the other end of first connecting rod 101 is by the end chain connection of the second jointed shaft 112 with second connecting rod 102, the other end of second connecting rod 102 is by the 3rd jointed shaft 113 and third connecting rod 103 chain connections, described snap close 109 is installed on the first fixed head 118 and the second fixed head 119 pivotally by the second rotating shaft 120, and described tripping 110 is installed on the first fixed head 118 and the second fixed head 119 pivotally by the 3rd rotating shaft 107.One end of described third connecting rod 103 is installed on the first fixed head 118 and the second fixed head 119 pivotally by the 4th rotating shaft 108, the other end is by the 4th jointed shaft 114 and push rod 117 chain connections, and the middle part is by the end chain connection of the 3rd jointed shaft 113 with second connecting rod 102.Push rod 117 is provided with the spacing preiection (not shown), cooperate with stopper slot (not shown) on the case for circuit breaker (not shown) by this spacing preiection, with the other end and the case for circuit breaker connection of push rod 117, and limit its movement locus.One end of described spring 115 is connected with the 4th hinge axis 114, its other end and the first fixed head 118 be connected fixed head 119 and be connected.Described release lever 121 is installed on the first fixed head 118 by guide frame, one end of release lever 121 is of coupled connections by the main shake-up face 1213 (as shown in Figure 7) on it and described snap close 109, the other end is of coupled connections with a plurality of control inputs devices by a plurality of faces (seeing shown in Figure 71 12,1212) of being touched on it.Described auxiliary contact device 300 pivots with described the 4th rotating shaft 108 by the support 301 of the auxiliary contact in it and is connected, and the 4th rotating shaft 108 is installed and is connected with the first fixed head 118, the second fixed head 119.Described auxiliary contact support 301 is of coupled connections by clutch structure and described third connecting rod 103.Described demonstration output device 500 is by indication piece 501 and the 120 pivot connections of described the second rotating shaft in it, the second rotating shaft 120 is installed and is connected with the first fixed head 118, the second fixed head 119, and described indication piece 501 is of coupled connections by slide construction and auxiliary contact support 301.
Such as Fig. 1; shown in 2 is a kind of preferred embodiment of the present invention; because main body 100; related components under auxiliary contact device 300 and the demonstration output device 500 are by the first rotating shaft 106; the second rotating shaft 120; the 3rd rotating shaft 107 and the 4th rotating shaft 108 are installed on the first fixed head 118 and the second fixed head 119 jointly; so main body 100; auxiliary contact device 300 and demonstration output device 500 have formed an independently component unit; this component unit can be used for the miniature circuit breaker of different cultivars; can realize standardization; large-scale production, thus can greatly enhance productivity and reduce manufacturing cost.Not hard to imagine, by being connected and fixed of the first fixed head 118 and/or the second fixed head 119 and case for circuit breaker (not shown), can realize the integral installation of described component unit and case for circuit breaker, avoided the parts of operating mechanism to be respectively installed on the case for circuit breaker, thereby simplified the assembling and setting operation, when having saved the assembler, so that assembling and setting is very easy, convenient.
One end of described handle back-moving spring 105 is connected with handle 104, the other end is decided plate 118 with the second fixed head 119 or first and is connected, its elastic force action direction is the counter clockwise direction around the first rotating shaft 106 shown in Figure 2, that is to say, when circuit breaker trip, the elastic force of handle back-moving spring 105 can order about handle 104 to the direction motion of " separating brake ", so that handle 104 automatically restores to the position of " separating brake ".Be not difficult to analyze from Fig. 2 and draw, when auxiliary moving contact 302 and auxiliary fixed contact 303 closure, spring 115 is in energy storage state, when main shake-up face 1213 (as shown in Figure 7) the shake-up snap close 109 of release lever 121 makes snap close 109 with tripping 110 release, spring 115 releases energy, and orders about operating mechanism and carry out " tripping operation " action.Because spring 115 and handle back-moving spring 105 all provide actuating force to " tripping operation " or " separating brake " of operating mechanism, so that the breaking speed of the auxiliary contact device 300 of operating mechanism of the present invention and main contact device 400 is fast especially, and can rationally dwindle the volume of the spring 115 of main energy storage effect.
Shown in Fig. 2 to 4, be provided with the first mounting hole 1101, the second jointed shafts 112 in described tripping 110 and be installed in the first mounting hole 1101, the second jointed shaft 112 can slide by the long axis direction along the first mounting hole in the first mounting hole 1101.Described tripping 110 is coupled by interlocking structure 130 with snap close 109, described interlocking structure refers to be formed on the protruding tooth and the convex shoulder that is formed on the snap close 109 in the tripping 110, when protruding tooth contacts with convex shoulder, tripping 110 and snap close 109 interlockings make that operating mechanism can normally close a floodgate, spring 115 can normal energy storage.When described protruding tooth separated with convex shoulder, tripping 110 and snap close 109 releases were tripped operating mechanism under the elastic force effect that spring 115 discharges.When described protruding tooth separates with convex shoulder; that is under tripping 110 and snap close 109 released states; the closing operation of operating mechanism can not be successful; the energy storage of spring 115 can not be successful; thereby; in order to make circuit breaker can normally recover to close a floodgate after tripping operation, it is necessary that a snap close back-moving spring 116 is set.One end of snap close back-moving spring 116 is connected with the first fixed head 118 or the second fixed head 119, and the other end is connected with snap close 109.The convex shoulder that the elastic force of snap close back-moving spring 116 orders about snap close 109 is closed to the protruding tooth in the tripping 110, and therefore, under snap close 109 was had no way of the situation of the External Force Acting that the shake-up of release lever 121 causes, latch spring 116 can order about snap close 109 and tripping 110 self interlockings.
Fig. 3 and Fig. 8 have removed the partial structurtes schematic diagram that shows behind the output device 500, and circuit breaker shown in Figure 3 is in " combined floodgate " state, and circuit breaker shown in Figure 8 is in " separating brake " state.
From shown in Figure 8, when circuit breaker is in " separating brake " state, auxiliary moving contact 302 and auxiliary fixed contact 303 disjunctions, tripping 110 and snap close 109 interlockings, the second jointed shaft 112 is in the top of the first mounting hole 1101, and the first jointed shaft 111 is in the right of the line (not marking among the figure) between the first rotating shaft 106 and the second jointed shaft 112, and spring 115 is in release condition, the location status of other movement parts as shown in Figure 8, this moment operating mechanism be in the first stable state.
The below further specifies operating mechanism of the present invention is carried out " combined floodgate " operation by " separating brake " state shown in Figure 8 process.Operating personnel pull handle 104 and rotate to clockwise direction, promoting first connecting rod 101 by the first jointed shaft 111 moves, make the second jointed shaft 112 along the long axis direction down sliding of the first mounting hole 1101, the second jointed shaft 112 drives second connecting rod 102 and moves, second connecting rod 102 promotes third connecting rod 103 by the 3rd jointed shaft 113 and does the clockwise direction swing around the 4th rotating shaft 108, third connecting rod 103 swings along clockwise direction, the auxiliary initiatively contact 302 of control is to auxiliary fixed contact 303 closures, behind each relevant movement parts arrival position as shown in Figure 3, " combined floodgate " EO of operating mechanism, this moment, operating mechanism was in the second stable state.Under this state, auxiliary moving contact 302 and auxiliary fixed contact 303 closures, tripping 110 and snap close 109 interlockings, bottom, the first jointed shaft 111 that the second jointed shaft 112 is in the first mounting hole 1101 is in the left side of the line (not marking among the figure) between the first rotating shaft 106 and the second jointed shaft 112, spring 115 is in energy storage state, and the location status of other movement parts as shown in Figure 3.
The below further specifies operating mechanism of the present invention is carried out " tripping operation " operation by " combined floodgate " state shown in Figure 3 process.When circuit breaker runs into fault, bimetal leaf trip gear 200 touches release lever 121 and moves right, release lever 121 promotes snap close 109 and does counterclockwise motion around the second rotating shaft 120, thereby make snap close 109 separate release with tripping 110, namely removed the active force of 109 pairs of trippings 110 of snap close, thereby make tripping 110 do that clockwise direction is little to be moved, and cause the first jointed shaft 111 to cross line between the first rotating shaft 106 and the second jointed shaft 112, arrive the right of described line, the second stable state of operating mechanism is disintegrated, spring 115 releases energy, under the elastic force effect of spring 115, driving third connecting rod 103 does to move counterclockwise around the 4th rotating shaft 108, third connecting rod 103 is when the auxiliary moving contact 302 of control and auxiliary fixed contact 303 are done the disjunction action, it is back mobile to promote second connecting rod 102 by the 3rd jointed shaft 113, second connecting rod 102 promotes first connecting rod 101 by the second jointed shaft 112 and moves, first connecting rod 101 rotates counterclockwise by the first jointed shaft 111 driving handles, until operating mechanism is got back to the first stable state, each movement parts position of this state as shown in Figure 8.
If under by " combined floodgate " state shown in Figure 3, pull handle 104, it is counterclockwise mobile that handle 104 is done, also can make the first jointed shaft 111 cross the right that line between the first rotating shaft 106 and the second jointed shaft 112 arrives described line, thereby cause the second stable state of operating mechanism to be disintegrated, so under the elastic force effect of spring 115, make operating mechanism get back to the first stable state by aforementioned " tripping operation " process, and this process is in fact namely carried out the operating process of " manual brake separating ".
Can be found out by Fig. 1 and 2, the 4th rotating shaft 108 is positioned at the left side of the main body 100 of operating mechanism, the face of being touched (1211 near release lever 121,1212, a side as shown in Figure 7), such layout is so that the auxiliary moving contact 302 that is installed on the 4th rotating shaft 108 is nearest from bimetal leaf trip gear 200, from main contact device 300 also very close to, thereby can be so that the thread guide path of required connection be the shortest between the bimetal leaf trip gear 200, auxiliary contact device 300, main contact device 400.
The following describes structure and the course of action of auxiliary contact device.Auxiliary contact device 300 comprises auxiliary contact support 301, auxiliary moving contact 302, auxiliary fixed contact 303, auxiliary contact spring 304.Auxiliary fixed contact 303 is fixed on the case for circuit breaker (not shown), auxiliary moving contact 302 is fixed on auxiliary contact and supports on 301, one end of auxiliary contact spring 304 supports that with auxiliary contact 301 are connected, the other end is connected with the first fixed head 118 and/or the second fixed head 119, so that auxiliary contact spring 304 is for assisting moving contact 302 and the closure of auxiliary fixed contact 303 that actuating force and contact force are provided.Third connecting rod 103 at operating mechanism is provided with the first contact-making surface 1031, one end of described third connecting rod 103 also is installed on the 4th rotating shaft 108 pivotally, being provided with the second contact-making surface 3011, the first contact-making surfaces 1031 in described auxiliary contact support 301 is of coupled connections with the second contact-making surface 3011 in the auxiliary contact support 301 and consists of described clutch structure.Under circuit breaker shown in Figure 3 " combined floodgate " state, the first contact-making surface 1031 separates with the second contact-making surface 3011, and under the elastic force effect of auxiliary contact spring 304, auxiliary moving contact 301 is with auxiliary fixed contact 302 closures and hold suitable contact force.In the process of " separating brake " or " tripping operation " of circuit breaker, third connecting rod 103 is done anticlockwise swing around the 4th rotating shaft 108 under the elastic force effect of spring 115, this swing makes first the first contact-making surface 1031 contact with the second contact-making surface 3011, and then promote the second contact 3011 and make auxiliary contact support 301 also to do counterclockwise to swing around the 4th rotating shaft 108, ordering about auxiliary moving contact 302 separates with auxiliary fixed contact 303, until operating mechanism is finished " separating brake " or " tripping operation " operation, and enter as shown in Figure 8 the first stable state, under this state, the first contact-making surface 1031 and the second contact-making surface 3011 keep in touch.In circuit breaker " combined floodgate " process, third connecting rod 103 is under the effect of the closing operation power that is provided by handle 104, making clockwise direction around the 4th rotating shaft 108 swings, the first contact-making surface 1031 is swung thereupon, under the elastic force effect of auxiliary contact spring 304, the second contact-making surface 3011 contacts and follows the first contact-making surface 1031 with the first contact-making surface 1031 and swings, and makes auxiliary moving contact 302 to auxiliary fixed contact 303 closures; When auxiliary moving contact 302 and auxiliary fixed contact 303 in case closed, the second contact-making surface 3011 stops swinging, and the first contact-making surface 1031 continues to swing, thereby so that the second contact-making surface 3011 separates with the first contact-making surface 1031, until finishing " combined floodgate ", operating mechanism operates and enters as shown in Figure 3 the second stable state, under this state, the first contact-making surface 1031 separates with the second contact-making surface 3011.
Aforesaid clutch structure, comprise described the first contact-making surface 1031, the second contact-making surface 3011 and auxiliary contact spring 304, control the closure/disjunction of auxiliary moving contact 302 and auxiliary fixed contact 303 by the clutch of the first contact-making surface 1031 and the second contact-making surface 3011.The preferred implementation of clutch structure provided by the invention is: by the closure (be the closure of auxiliary contact device 300) of separating control auxiliary moving contact 302 and auxiliary fixed contact 302 of the first contact-making surface 1031 with the second contact-making surface 3011, by the disjunction (be the disjunction of auxiliary contact device 300) that contact control auxiliary moving contact 302 and auxiliary fixed contact 303 of the first contact-making surface 1031 with the second contact-making surface 3011.Not hard to imaginely also there is another alternative technical scheme: by the disjunction that separates to control auxiliary moving contact 302 and auxiliary fixed contact 303 of the first contact-making surface and the second contact-making surface, by the closure that contact control auxiliary moving contact 302 and auxiliary fixed contact 303 of the first contact-making surface with the second contact-making surface.Another execution mode of clutch structure provided by the invention is the second contact-making surface 3011 to be arranged on auxiliary contact support on 301.Not hard to imagine, alternative another program is that the second contact-making surface is arranged on the auxiliary moving contact.The auxiliary contact spring that this specification provides is torsion spring, and obviously, auxiliary contact spring of the present invention is not limited to the form of torsion spring, and it can also be a kind of in extension spring or the stage clip.
Shown in Fig. 1,2,6,7, described release lever 121 is installed on the first fixed head 118 by guide frame, and the technical scheme of described guide frame can have three kinds.The first technical scheme is the technical scheme of the preferred embodiment shown in this Figure of description, described guide frame is actually a slide block structure, it is by the body of rod 1214 on the release lever 121 and be formed on three guide pads on the first fixed head 118 (i.e. the first guide pad 1181, the second guide pad 1182 and the 3rd guide pad 1183) form, the body of rod 1214 of release lever 121 is installed in the first guide pad 1181 and the second guide pad 1182 with form slidably, between the 3rd guide pad 1183, with the first guide pad 1181 and the second guide pad 1182, the 3rd guide pad 1183 is 3 layouts, that is to say, the first guide pad 1181 is positioned at a side of the body of rod 1214, and the second guide pad 1182 and the 3rd guide pad 1183 lay respectively at the opposite side of the body of rod 1214.The first guide pad 1181, the second guide pad 1182, the 3rd guide pad 1183 respectively with the body of rod 1214 between cooperate for being slidingly matched, thereby defined the direction of motion of release lever 121 by the first guide pad 1181, the second guide pad 1182, the 3rd guide pad 1183, release lever 121 can only be moved along the direction that is limited by the first guide pad 1181, the second guide pad 1182, the 3rd guide pad 1183, obviously, the direction of this restriction is exactly the line direction of the second guide pad 1182 and the 3rd guide pad 1183.Because the second guide pad 1182 is L shaped with 1183 one-tenth of the 3rd guide pads, so this L shaped naturally meeting consist of U-lag with the wall of the first fixed head 118, and the body of rod 1214 just is installed in this U-lag, so just guaranteed that release lever 121 can not only move along the direction that is limited by the first guide pad 1181, the second guide pad 1182, the 3rd guide pad 1183, but also can not from the first guide pad 1181, the second guide pad 1182, the 3rd guide pad 1183, freely deviate from, that is to say, by U-lag, can prevent that release lever 121 from freely deviating from from guide frame.The technical scheme of the second guide frame is provided with diagram in specification, this guide frame is a guide groove structure in fact, the body of rod forms with the gathering sill that is formed on the first fixed head 118 on the release lever 121 by being formed on for it, described gathering sill is T-slot or dovetail groove as everyone knows, the body of rod is installed in the gathering sill and (namely is limited in the gathering sill), guide post 121 can only be moved along the direction that gathering sill limits, can not from guide frame, freely deviate from, restriction direction described here be actually refer to gathering sill (T-slot or dovetail groove) vertically, describedly can not freely deviate to refer to and can not from gathering sill, freely deviate from.The technical scheme of the third guide frame does not illustrate in this manual yet, this guide frame is the chute slide block structure in fact, it forms by being formed on two slide blocks on the first fixed head and two chutes that are formed on the body of rod at least at least, two slide blocks are slidingly matched with two chutes respectively, release lever is limited between two slide blocks, release lever 121 can only be moved along the direction that is limited by chute and slide block, can not freely deviate from, restriction direction described here is actually by slide block and cooperates the guide direction that forms with chute, can not freely deviate to refer to that slide block can not freely deviate from from chute, chute can not be deviate from from the restriction of slide block in other words.In sum, the technical scheme of guide frame of the present invention can be a kind of in above-mentioned the first technical scheme, the second technical scheme or the third technique direction, and these three kinds of technical schemes can be replaced mutually.
Shown in Fig. 1 and 7, the relation of operating mechanism of the present invention and a plurality of control inputs device coupling is described.Described release lever 121 is provided with the body of rod 1214, main shake-up face 1213 and two and is touched face 1211 and 1212, and main shake-up face 1213 is of coupled connections with snap close 109.When the mechanical action of control inputs device and masterpiece are used on the release lever 121 any one and are touched face (1211 or 1212), release lever 121 moves right, the tactile face 1213 of master on the release lever 121 is contacted with snap close 109, and promote snap close 109 to counterclockwise swing, thereby make snap close 109 separate release with tripping 110.In the time spent of doing of the mechanical action of release lever 121 uncontrolled input units and power, release lever 121 unable shake-up snap closes 109, thus guarantee the normal separating brake of circuit breaker.Among the embodiment shown in Fig. 1 and 7, release lever 121 is provided with two and is touched face 1211 and 1212, be touched on the vertical face of face 1211 and 1212 with the stepped body of rod 1214 that is distributed in release lever 121 for these two, this is a kind of typical embodiment, operating mechanism in actual design, may need to surpass two and be touched face, so that can be coupled with more control inputs device.Be not difficult to know by inference from embodiment shown in Figure 7, need to arrange at release lever 121 when being touched face more, can be with a plurality of faces of being touched with stepped distribution, be separately positioned on four longitudinal surfaces of the body of rod 1214 of release lever 121.Being touched face and main shake-up face can be the plane, but in order to improve the performance that is of coupled connections, and the surface configuration of being touched face and main shake-up face is sphere or the face of cylinder preferably.
Shown in Fig. 2,5, described display unit 500 has an indication piece 501 that is installed in pivotally on the second rotating shaft 120.Be provided with second mounting hole 5011 and index plane 5012 at described indication piece 501, the second mounting hole 5011 be arranged on auxiliary contact and support the round boss 3012 on 301 to cooperate slide construction of formation, that is to say that indication piece 501 is supported 301 couplings by slide construction and auxiliary contact.When auxiliary contact support 301 when the 4th rotating shaft 108 is made counter-clockwise swing and is done " disjunction " action, auxiliary contact is supported the round boss 3012 on 301, promote the counter-clockwise swing that indication piece 501 is done around the second rotating shaft 120 by the second mounting hole 5011 on the indication piece 501, make index plane 5012 move to " disjunction " display position; When auxiliary contact supports 301 when the 4th rotating shaft 108 is done to swing clockwise work " closure " action, auxiliary contact is supported the round boss 3012 on 301, by the clockwise swing of the second mounting hole 5011 dos on the indication piece 501 around the second rotating shaft 120, make index plane 5012 move to " closure " display position, the location status of each movement parts is shown in Fig. 2,5.By preferred embodiment shown in Figure 5, described slide construction comprises the round boss 3012 that is formed in the auxiliary contact support 301 and the second mounting hole 5011 that is formed on the indication piece 501, round boss 3012 is installed in the second mounting hole 5011, and can slide along the long axis direction of the second mounting hole 5011.Obviously, also there is other technical scheme of phase trans-substitution in slide construction, for example can be: described slide construction comprises the second mounting hole that is formed in the auxiliary contact support 301 and the round boss that is formed on the indication piece 501, round boss is installed in the second mounting hole, and can slide along the long axis direction of the second mounting hole.Described the second rotating shaft 120 is positioned at a side of stretching out direction near handle 104, the side in circuit breaker front namely, make the front of the demonstration output device 500 close miniature circuit breakers that are installed on the second rotating shaft 120, namely make the index plane 5012 on the indication piece 501 that shows output device 500 positive near miniature circuit breaker, thereby can significantly save the inner space of circuit breaker, reduce the volume of circuit breaker.Shown in Fig. 2 and 3, one end of third connecting rod 103 is installed on the 4th rotating shaft 108 pivotally, the other end is by the 4th jointed shaft 114 and push rod 117 chain connections, the middle part is by the end chain connection of the 3rd jointed shaft 113 with second connecting rod 102, one end of spring 115 is connected with the 4th jointed shaft 114, the other end of spring 115 is connected with the first fixed head 118 and/or the second fixed head 119, the advantage of design is so that the power system design of operating mechanism is more reasonable like this, to reduce irrational frictional force and the power of having a contest, the size of dwindling stressed member.The characteristics of this project organization are, third connecting rod 103 as output mechanical action and power has three stressed fulcrums, first fulcrum is the restraining force that is provided by the 4th rotating shaft 108, second fulcrum is the restraining force that is provided by the 3rd jointed shaft 113, the 3rd fulcrum be by the 4th jointed shaft 114 provide from the elastic force of spring 115 with from the active force of main contact device 400.Owing to have three stressed fulcrums, can be by adjusting the position relationship between three stressed fulcrums, with the structure institute that obtains two stressed fulcrums can not be obtainable the effect that designs of optimal force system.From Fig. 2,3 as seen, three stressed fulcrums of embodiments of the invention not point-blank, namely the axle center of three axles of the 4th rotating shaft 108, the 3rd jointed shaft 113 and the 4th jointed shaft 114 is not point-blank.
Shown in Fig. 1,2,3,4,8, described main contact device 400 comprises main contact support the 401, the 5th rotating shaft 402, active contact 403, the first main fixed contact 404, the second main fixed contact 405 and main contact spring (not shown).Main contact support 401 is installed on the case for circuit breaker pivotally by the 5th rotating shaft 402.The active contact 403 that is fixed in the main contact support 401 is provided with two initiatively contacts, respectively with the first main fixed contact 404, the second main fixed contact 405 collaborative works, carry out the first main fixed contact 404 and the second main fixed contact 405 respectively with active contact 403 on two initiatively synchronizing close/disjunctions of contacts.One end of described main contact spring (not shown) supports that with main contact 401 are connected, the other end is connected with case for circuit breaker, and the elastic force of main contact spring provides contact force for the closure of active contact 403 and the first main fixed contact 404, the second main fixed contact 405.Be provided with the first actuating arm 4013 and the second actuating arm 4014 in main contact support 401.On described the first actuating arm 4013, be provided with the first drive surface 4011, be used for and being of coupled connections of push rod 117; When operating mechanism is carried out " combined floodgate " operation, 117 pairs of the first actuating arms 4013 of push rod do not apply mechanical action and power, main contact supports 401 under the elastic force effect of main contact spring, automatically order about active contact 403 and the first main fixed contact 404, the second main fixed contact 405 closures, the location status of each movement parts as shown in Figure 2.When operating mechanism is carried out " separating brake " or " tripping operation " operation, push rod 117 moves right, and promote the first drive surface 4011 on the first actuating arm 4013, making main contact support 401 make clockwise direction around the 5th rotating shaft 402 swings, thereby make active contact 403 and the first main fixed contact 404, the second main fixed contact 405 disjunctions, the location status of each movement parts as shown in Figure 8.Be provided with the second drive surface 4012 at described the second actuating arm 4014, be used for the (see figure 1) that is of coupled connections with electromagnetic tripping apparatus 600; When short trouble occurring; the electromagnetism impeller (not shown) of electromagnetic tripping apparatus 600 promotes the second drive surface 4012 on the second actuating arm 4014; making main contact support 401 make clockwise direction around the 5th rotating shaft 402 swings; thereby make initiatively contact 403 and the first main fixed contact 404; the second main fixed contact 405 disjunctions; the location status of each movement parts as shown in Figure 4; this state is the short circuit short time-delay operating state of selective protective breaker; auxiliary contact device 300 still keeps temporary transient closure state under this state, and push rod 117 separates with the first drive surface 4011.
Be not difficult to draw to draw a conclusion from upper embodiment analysis, the independently component unit of operating mechanism of the present invention is with release lever 121, thereby for accessing from the left and right sides of operating mechanism, a plurality of control inputs devices provide convenience, operating mechanism is from the control inputs device of left side access, such as but not limited to bimetal leaf trip gear shown in Figure 1, can also be electromagnetic tripping apparatus, pneumatic trip gear etc., can touch a plurality of by contact face 1211 on the release lever 121 nearby, 1212, make operating mechanism carry out " tripping operation " operation of circuit breaker.From the control inputs device of right side access, such as but not limited to electromagnetic tripping apparatus shown in Figure 1, can also be bimetal leaf trip gear, pneumatic trip gear etc., can touch snap close 109 nearby, make operating mechanism carry out " tripping operation " operation of circuit breaker.The principle that realizes multi-control output of operating mechanism of the present invention is: the second rotating shaft 120 of the individual components of operating mechanism and the 4th rotating shaft 108 can be installed control output device (be not limited to the auxiliary contact device shown in Fig. 1 to 8 and show output device), operating mechanism is by the swing of third connecting rod 103, to control output device input wobbling action and power, the first jointed shaft 111 of the individual components unit of operating mechanism, the second jointed shaft 112, the 3rd jointed shaft 113, the 4th jointed shaft 114, can be to the output mobile action of control output device and power, with the control main contact device, the control such as auxiliary unit (not shown) output device conversion operating state.
Operating mechanism of the present invention also has following advantage.Because reduced the driving direction of the operation of the length dimension of the push rod on the operating mechanism and push rod, for the arc extinguishing zone provides larger space, main contact arc quenching system layout more is conducive to carry out current switching after the reliable blow-out, and is conducive to the layout of electromagnetic system.And the layout of auxiliary contact more is conducive to selective protective breaker and carries out inner reasonable Arrangement.Dropout push rod among the present invention can be controlled by long delay bimetal leaf and short time delay bimetal leaf, is conducive to two bimetal leafs and carries out rational deployment, obtains the high deferred action characteristic of stability characteristic (quality).The extension spring that is used for the disconnection of driving main contact only needs less power, and main contact is opened.Through the simulation analysis contrast, in the slow reseting procedure of mechanism of the present invention, the tripping anglec of rotation is less, and it is more reliable than prior art to reset slowly.
Claims (12)
1. the operating mechanism that can realize the miniature circuit breaker of multi-control input and output, comprise main body (100), auxiliary contact device (300), show output device (500) and selectively control output device with at least one control inputs device of main body (100) phase configuration with at least one, described control inputs device comprises bimetal leaf trip gear (200), electromagnetic tripping apparatus (600) or pneumatic trip gear, described control output device comprises main contact device (400), auxiliary unit, described operating mechanism main body (100) comprises handle (104), handle back-moving spring (105), first connecting rod (101), second connecting rod (102), third connecting rod (103), snap close (109), tripping (110), push rod (117), spring (115), snap close back-moving spring (116), the first rotating shaft (106), the second rotating shaft (120), the 3rd rotating shaft (107), the 4th rotating shaft (108), the first jointed shaft (111), the second jointed shaft (112) and the 3rd jointed shaft (113) is characterized in that:
Described operating mechanism main body (100) also comprises the first fixed head (118), the second fixed head (119), release lever (121) and interlocking structure (130);
Described handle (104) is installed on the first fixed head (118) and the second fixed head (119) pivotally by the first rotating shaft (106), handle (104) is connected with an end of first connecting rod (101) by the first jointed shaft (111), the other end of first connecting rod (101) is connected with an end of second connecting rod (102) by the second jointed shaft (112), and the other end of second connecting rod (102) is connected with third connecting rod (103) by the 3rd jointed shaft (113);
Described snap close (109) is installed on the first fixed head (118) and the second fixed head (119) pivotally by the second rotating shaft (120), and described tripping (110) is installed on the first fixed head (118) and the second fixed head (119) pivotally by the 3rd rotating shaft (107);
One end of described third connecting rod (103) is installed on the first fixed head (118) and the second fixed head (119) pivotally by the 4th rotating shaft (108), the other end is by the 4th jointed shaft (114) and push rod (117) chain connection, and the middle part is connected with an end of second connecting rod (102) by the 3rd jointed shaft (113); One end of described spring (115) is connected with the 4th jointed shaft (114), the other end and the first fixed head (118) be connected fixed head (119) and be connected;
Described tripping (110) is located to be of coupled connections at interlocking structure (130) with snap close (109), tripping (110) is provided with the first mounting hole (1101), and described the second jointed shaft (112) is installed in the first mounting hole (1101) and can slides along the long axis direction of the first mounting hole (1101);
Described release lever (121) is by being installed on the first fixed head (118), one end of release lever (121) is of coupled connections by main shake-up face (1213) and described snap close (109), the other end is of coupled connections with corresponding control inputs device by the face of being touched, described release lever (121) identical with the quantity of the corresponding control inputs device that is of coupled connections by the quantity of movable contact face.
2. the operating mechanism of realizing the miniature circuit breaker of multi-control input and output according to claim 1, it is characterized in that: described release lever (121) is provided with the body of rod (1214), a main shake-up face (1213) and more than one and is touched face (1211,1212), these are touched face with stepped distribution, are separately positioned at least one vertical face of the body of rod (1214) one ends of release lever (121).
3. the operating mechanism of realizing the miniature circuit breaker of multi-control input and output according to claim 1 and 2 is characterized in that:
Described auxiliary contact device (300) comprises auxiliary contact support (301), auxiliary moving contact (302), auxiliary fixed contact (303), auxiliary contact spring (304);
Described auxiliary contact support (301) and described the 4th rotating shaft (108) pivot connection, the 4th rotating shaft (108) is installed with the first fixed head (118), the second fixed head (119) and is connected, and described auxiliary contact support (301) is of coupled connections by clutch structure and described third connecting rod (103).
4. the operating mechanism of realizing the miniature circuit breaker of multi-control input and output according to claim 1 and 2, it is characterized in that: release lever (121) is installed on the first fixed head (118) with guide frame, described guide frame comprises the body of rod (1214) that is formed on the release lever (121) and is formed on the first guide pad (1181) on the first fixed head (118), the second guide pad (1182), the 3rd guide pad (1183), the body of rod (1214) is installed in the first guide pad (1181) and the second guide pad (1182) with form slidably, between the 3rd guide pad (1183), make the release lever (121) can only be along by the first guide pad (1181), the second guide pad (1182), the direction motion that the 3rd guide pad (1183) limits can not freely be deviate from from guide frame; Perhaps, described guide frame comprises the body of rod that is formed on the release lever (121) and the gathering sill that is formed on the first fixed head (118), the body of rod is installed in the described gathering sill with form slidably, release lever (121) can only be moved along the direction that described gathering sill limits, can not from gathering sill, freely deviate from; Perhaps, described guide frame comprises the chute and at least two slide blocks that are formed on the first fixed head (118) on the body of rod that is formed on the release lever (121), the body of rod by the chute on it with form slidably, between being installed in two slide blocks on the first fixed head (118), release lever (121) can only be moved along the direction that described chute and slide block limit, can not from guide frame, freely deviate from.
5. the operating mechanism of realizing the miniature circuit breaker of multi-control input and output according to claim 1, it is characterized in that: described display unit (500) comprises indication piece (501), indication piece (501) and described the second rotating shaft (120) pivot connection, described indication piece (501) is of coupled connections by slide construction and auxiliary contact support (301); Described the second rotating shaft (120) is arranged on a side of stretching out direction near handle (104), makes the front of the close miniature circuit breaker of display unit (500) that is installed on the second rotating shaft (120).
6. according to claim 1, any described operating mechanism of realizing the miniature circuit breaker of multi-control input and output in 5, it is characterized in that: the related elements of described operating mechanism main body (100), auxiliary contact device (300) and display unit (500) is installed on the first fixed head (118) and the second fixed head (119) jointly, thereby forms independently component unit.
7. the operating mechanism of realizing the miniature circuit breaker of multi-control input and output according to claim 1, it is characterized in that: (401) are provided with the first actuating arm (4013) and the second actuating arm (4014) in the main contact support of described main contact device (400); Be provided with the first drive surface (4011) at described the first actuating arm (4013), be used for being of coupled connections with the push rod (117) of main body (100); Be provided with the second drive surface (4012) at described the second actuating arm (4014), be used for being of coupled connections with Electromagnetic Control input unit (600).
8. the operating mechanism of realizing the miniature circuit breaker of multi-control input and output according to claim 2 is characterized in that: described main shake-up face (1213) and the surface of being touched face (1211,1212) are a kind of in plane, sphere or the face of cylinder.
9. the operating mechanism of realizing the miniature circuit breaker of multi-control input and output according to claim 3 is characterized in that: described clutch structure comprises the first contact-making surface (1031) of being formed on the third connecting rod (103), is formed on the second contact-making surface (3011) and auxiliary contact spring (304) in the auxiliary contact support (301); Under the effect of auxiliary contact spring (304), by contacting of described the first contact-making surface (1031) and the second contact-making surface (3011), have suitable clearance between open contacts when guaranteeing the disjunction of auxiliary contact device (300), have enough contact over travel when separating to guarantee auxiliary contact device (300) closed with the second contact-making surface (3011) by described the first contact-making surface (1031).
10. the operating mechanism of realizing the miniature circuit breaker of multi-control input and output according to claim 5 is characterized in that: described slide construction comprises the round boss (3012) that is formed in the auxiliary contact support (301) and is formed on the second mounting hole (5011) on the indication piece (501); Round boss (3012) is installed in the second mounting hole (5011) with form slidably, and can slide along the long axis direction of the second mounting hole (5011).
11. the operating mechanism of realizing the miniature circuit breaker of multi-control input and output according to claim 4, it is characterized in that: in described the first guide pad (1181), the second guide pad (1182), the 3rd guide pad (1183), have at least an one-tenth L shaped, its wall with the first fixed head (118) consists of U-lag.
12. the operating mechanism of realizing the miniature circuit breaker of multi-control input and output according to claim 9 is characterized in that: an end of described auxiliary contact spring (304) is connected with auxiliary contact support (301); The other end of described auxiliary contact spring (304) is connected with third connecting rod (103); The elastic force of described auxiliary contact spring (304) is for auxiliary moving contact (302) provides closed contact force with auxiliary fixed contact (303).
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| CN 200910250728 CN101958206B (en) | 2009-12-09 | 2009-12-09 | Miniature circuit breaker operation mechanism capable of realizing multi-control input and output |
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| CN 200910250728 CN101958206B (en) | 2009-12-09 | 2009-12-09 | Miniature circuit breaker operation mechanism capable of realizing multi-control input and output |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102254755B (en) * | 2011-06-28 | 2013-10-16 | 法泰电器（江苏）股份有限公司 | Operation mechanism of circuit breaker |
| CN104217870B (en) * | 2014-08-01 | 2017-01-18 | 平高集团有限公司 | Trip device and spring actuation mechanism with same |
| CN106847629B (en) * | 2017-04-11 | 2018-07-20 | 厦门大恒科技有限公司 | A kind of miniature circuit breaker and circuit protection device |
| CN107275161B (en) * | 2017-06-27 | 2020-09-15 | 美高电气科技有限公司 | Small-sized circuit breaker |
| CN109509690B (en) * | 2017-09-14 | 2024-04-12 | 浙江正泰电器股份有限公司 | Linkage mechanism of breaker and side-mounted auxiliary contact |
| CN109360754B (en) * | 2018-11-06 | 2024-01-19 | 安士缔(中国)电气设备有限公司 | Star-delta electric loop operation device applied to two circuit breakers |
| CN113948349B (en) * | 2021-10-28 | 2023-12-12 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Piezoelectric tripping mechanism for circuit breaker |
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| CN101106046A (en) * | 2007-06-07 | 2008-01-16 | 浙江正泰电器股份有限公司 | An operation machine for small residual current action breaker |
| CN201655700U (en) * | 2009-12-09 | 2010-11-24 | 上海诺雅克电气有限公司 | Operating mechanism of miniature circuit breaker capable of realizing multi-control input and multi output |
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| CN101958206A (en) | 2011-01-26 |
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Application publication date: 20110126 Assignee: ZHEJIANG CHINT ELECTRICS Co.,Ltd. Assignor: SHANGHAI NOARK ELECTRIC Co.,Ltd. Contract record no.: X2021330000593 Denomination of invention: Operating mechanism of miniature circuit breaker capable of realizing multiple control inputs and outputs Granted publication date: 20130116 License type: Common License Record date: 20211025 |