CN103022840A - Low-echo radio frequency coaxial connector - Google Patents
Low-echo radio frequency coaxial connector Download PDFInfo
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- CN103022840A CN103022840A CN2012105698720A CN201210569872A CN103022840A CN 103022840 A CN103022840 A CN 103022840A CN 2012105698720 A CN2012105698720 A CN 2012105698720A CN 201210569872 A CN201210569872 A CN 201210569872A CN 103022840 A CN103022840 A CN 103022840A
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- contact pin
- tail
- periphery
- pin tail
- insert pin
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Abstract
The invention discloses a low-echo radio frequency coaxial connector and belongs to the radio frequency coaxial connector used for transmission between a tuner of a satellite antenna and an antenna receipt signal. The low-echo radio frequency coaxial connector comprises an inner conductor, an insulating tail sleeve, a tail sealing ring, a first insulating washer, a head sealing ring, a second insulating washer and a connecting sleeve, wherein the first insulating washer is arranged on the periphery of an insert pin head of the inner conductor. The low-echo radio frequency coaxial connector is characterized in that the tail end of the insert pin is formed by a tubular insert pin tail tube with a front-end inner cavity fastened on the periphery of the rear neck portion of the insert pin head via a rolling rivet and a rear-end inner cavity fastened with a hollow coniform insert pin tail sheet group via a rolling rivet, an annular groove matched with tan inner cavity of the insert pin tail tube and an annular protrusion abutted against with the front end of the insert pin tail tube are designed at the combination position of the periphery of the rear neck portion of the insert pin head and the front-end inner cavity of the insert pin tail tube of the insert pin tail, and the insert pin tail sheet group includes three arc-shaped tail sheets which are spaced by 120 radians and surround to form the hollow coniform. Via trial, signal attenuation during transmission is obviously reduced, and in addition, manufacturing cost and resource consumptions of copper alloy, gold and silver are decreased.
Description
Technical field: the present invention relates to radio frequency (RF) coaxial connector, especially for a kind of low echo radio frequency (RF) coaxial connector that transmits between the tuner of satellite antenna and the antenna receiving signal.
Background technology: the structure of the radio frequency (RF) coaxial connector of existing similar purposes as shown in Figure 2, include the inner wire 11 of pin 111, contact pin tail 112 formations, be socketed on the insulating case 22 of inner wire contact pin tail periphery, be socketed on successively insulating washer 33, the sealing ring 44 of inner wire pin periphery, be socketed on the in succession cover 55 of insulating case, insulating washer, sealing ring periphery.Wherein, pin 111 and the connection of contact pin tail 112 connect knot 113 to be finished by pressing, and the contact pin tail is the cauda 1121,1122 that duck chews shape and forms by being bent into polygonal upper and lower involutory configuration and openend; The cross section of 2 leaf caudas is rectangle shown in A-A cutaway view among the figure, that is to say, inner wire contact pin cauda is bent into polygonal by the strip metal plate and consists of, and its shape is similar in appearance to duckbilled.In actual use, the existing radio frequency (RF) coaxial connector of this spline structure, when the tuner of satellite antenna and antenna receiving signal transmission, when the circular heart yearn of cable inserts its inner wire contact pin tail, can only be from Fig. 2 the cross section shown in the A-A cutaway view be to exist side by side and pass between rectangular two caudas, convex surface, circular heart yearn both sides by stube cable contacts with the point of the flat surface of two caudas, reaches the transmission of tuner and the antenna receiving signal of satellite antenna.In actual the use, reliable for guaranteeing contact on the one hand, can only strengthen inner wire cauda strip metal plate width, and the inner wire out-of-shape, closing rear shape with insertion cushion and change with the vary in diameter of inserting pin, cauda 1121,1122 is inevitable incomplete same in Practical manufacturing, the off-centre that causes causes impedance variation, signal is difficult to transmit in the impedance 75 Ω situations that require, because impedance discontinuity causes echo to increase.Antenna receiving signal must be decayed seriously through such transmission, and return loss is difficult to descend, after tested 0.8-2.15GHZ return loss usually reach-8db extremely-the 13db scope, can't satisfy the lower customer requirement of return loss; On the other hand, for contacting of the flat surface of the circular heart yearn both sides convex arc surface that guarantees cable and inner wire two caudas reliable, strengthened the width of the involutory cauda of inner wire in the prior art as far as possible, in the today of advocating resource-conserving production, reduce as far as possible the expensive alloyed copper of making inner wire and the consumption of inner wire overlay coating noble metal gold, silver, enterprise has been realized cost of manufacture decline, society has been realized resources conservation.This shows, study and design a kind of electrical property connect in signal attenuation obviously reduce, and reduced manufacturing cost, the low echo radio frequency (RF) coaxial connector that reduced resource consumption is necessary.
Summary of the invention: the objective of the invention is to overcome the deficiencies in the prior art, design a kind of electrical property connect in signal attenuation obviously reduce, and reduced manufacturing cost, reduced the low echo radio frequency (RF) coaxial connector of resource consumption.
The object of the present invention is achieved like this: a kind of low echo radio frequency (RF) coaxial connector, include by pin, the inner wire that the contact pin tail consists of, be socketed on the insulation tail cover of inner wire contact pin tail periphery, be matched with the seal ring at tail part of insulation tail cover, be socketed on successively the first insulating washer of inner wire pin periphery, the head seal circle, the second insulating washer, be socketed on seal ring at tail part, insulation tail cover, the second insulating washer, the head seal circle, the in succession cover of the first insulating washer periphery, it is characterized in that the contact pin tail of described inner wire is by front end inner chamber neck periphery after roll riveting is buckled in pin, the rear end inner chamber consists of through the tubulose contact pin tail pipe that roll riveting is snapped with hollow cone shape contact pin cauda group, and the contact pin tail pipe front end inner chamber junction of neck periphery and contact pin tail is designed with the annular recess that is matched with contact pin tail pipe inner chamber and apical grafting in the annular projection of contact pin tail pipe front end behind the described pin; The technique effect of these two designs is with the 2 leaf caudas of prior art similar in appearance to duckbilled, is transformed into hollow cone shape contact pin cauda group and is connected in the pin rear portion through tubulose contact pin tail pipe; Described contact pin cauda group by with location interval 120 radians, 3 circular arc caudas that surround the hollow cone shape form, the technique effect of this design is that the flat surface of prior art similar in appearance to 2 leaf caudas of duckbilled contacted with the point on the convex surface, circular heart yearn both sides of stube cable, and the face that is transformed between the convex surface, circular heart yearn both sides of hollow cone shape contact pin cauda group cambered surface and stube cable contacts; The described insulation tail cover inner chamber that is socketed on inner wire contact pin tail periphery is designed with apical grafting in the annular projection of contact pin cauda group rear end, and the technique effect of this design is to force hollow cone shape contact pin cauda group to be fastened in reliably the inner chamber of tubulose contact pin tail pipe; The contact pin tail pipe front end inner chamber junction of neck periphery and contact pin tail is designed with the annular recess that is matched with contact pin tail pipe inner chamber and apical grafting in the annular projection of contact pin tail pipe front end behind the aforementioned pin, the technique effect of this design is to have possessed pressing between the pin of prior art and the contact pin tail connected, and is transformed into the condition that pin connects with roll riveting between the contact pin tail.
Purpose of the present invention can also be with taking following further technical measures to realize:
The contact pin tail of described inner wire is by front end inner chamber neck periphery after roll riveting is buckled in pin, refer to adopt in the annular recess of roll riveting with contact pin tail pipe front end inner chamber neck periphery after the roll riveting groove is buckled in pin, the technique effect of this design is the pin of prior art and the connection of contact pin tail to be connected knot finish by pressing, and is transformed into the roll riveting snapping between pin and the contact pin tail.
Neck was buckled on 3 cauda base portion peripheries that surround the hollow cone shape after the inner chamber riveted joint of described contact pin tail pipe rear end had hollow cone shape contact pin cauda group to refer to adopt roll riveting with the contact pin tail pipe, and the technique effect of this design is the reliable connection of having guaranteed hollow cone shape contact pin cauda group and contact pin tail pipe.
A kind of low echo radio frequency (RF) coaxial connector that the invention process obtains has shown following beneficial effect through trying out:
1, signal attenuation obviously reduces in the transmission.
When the radio frequency (RF) coaxial connector of similar prior art is connected with cable, when the circular heart yearn of cable inserts its inner wire contact pin tail, can only be to exist side by side from cross section and pass between the rectangular 2 leaf caudas, convex surface, circular heart yearn both sides by cable contacts the settling signal transmission with the point of the flat surface of 2 leaf caudas, and signal code is the very little point of area by face; The more important thing is the inner wire out-of-shape, closing rear shape with insertion cushion changes with the vary in diameter of inserting pin, two caudas are inevitable incomplete same in Practical manufacturing, the impedance variation that causes, signal can not transmit in the impedance 75 Ω situations that require, because impedance discontinuity causes echo to increase.And in the technical scheme of the present invention, when the circular heart yearn of cable inserts its inner wire contact pin tail, between the cross section shown in A-A cutaway view Fig. 3 is centrosymmetric the cauda of 3 circular arcs, to pass, circular heart yearn convex surface by cable contacts settling signal with arc surface between the cauda of 3 circular arcs and transmits, and the signal code of such transmission means is the larger face of area by face; The more important thing is the inner wire regular shape and have coaxial configuration, when the circular heart yearn of the cable that inserts different-diameter, on the profile of inner wire without impact, thereby can mate preferably with cover in succession and to obtain the transmission of constant 75 Ω signals, obviously reduce with signal transmission phase specific damping in the radio frequency (RF) coaxial connector of similar prior art, the return loss of marking signal decay significantly by 0.8-2.15GHZ return loss up to-drop to 0.8-2.15GHZ return loss more than the 13db and only be-26db, satisfied the lower customer demand of signal attenuation requirement.
2, reduced manufacturing cost, reduced resource consumption.In the low echo radio frequency (RF) coaxial connector of prior art, for the circular heart yearn both sides convex arc surface that guarantees cable is passed through face with the signal code that contacts reliably and strengthen of the flat surface of inner wire 2 leaf caudas as far as possible, strengthened the width of inner wire cauda as far as possible, width reaches the 2.5-3 millimeter, and length reaches the 25-30 millimeter; The present invention has then strengthened signal transmission face because be by three arc contact surfaces between the cauda of the convex surface, circular heart yearn both sides of cable and 3 circular arcs that are centrosymmetric, when guaranteeing that electrical performance indexes improves, in order to reduce manufacturing cost, reduce resource consumption, significantly reduced the cauda size, the base portion internal diameter of the hollow cone shape that the cauda of 3 circular arcs surrounds only is 1 millimeter, 2.5 millimeters of the length of the cauda of circular arc, the expensive alloy beryllium-bronze that the cauda of 3 circular arcs consumes or phosphor bronze and overlay coating Precious Metals-Gold, silver, it only is the inner wire caudal lobe 1/8 of the similar radio frequency (RF) coaxial connector of prior art, the alloy beryllium-bronze or the phosphor bronze material weight that consist of cauda reduce 87%, the overlay coating Precious Metals-Gold, the consumption of silver reduces 90%.In the market that copper alloy beryllium-bronze, phosphor bronze, noble metal gold and silver price quotations one road soar, enforcement of the present invention not only can bring the coml success to enterprise, but also the saving of non-renewable resources is had realistic meaning.
Description of drawings: Fig. 1 is the schematic diagram that meets thematic structure of the present invention; Fig. 2 is the structural representation of the radio frequency (RF) coaxial connector of prior art; Fig. 3 is the structural representation of inner wire in the technical solution of the present invention; Fig. 4 is the pin structural representation of inner wire in the technical solution of the present invention; Fig. 5 is contact pin cauda group structural representation in the inner wire contact pin tail in the technical solution of the present invention; Fig. 6 is the B-B generalized section among Fig. 5; Fig. 7 is the C-C generalized section among Fig. 5.
Embodiment: illustrated as follows to implementation detail of the present invention below in conjunction with accompanying drawing:
Such as Fig. 1,3, shown in 4, a kind of low echo radio frequency (RF) coaxial connector, include by pin 101, the inner wire 1 that contact pin tail 102 consists of, be socketed on the insulation tail cover 2 of inner wire contact pin tail periphery, be matched with the seal ring at tail part 3 of insulation tail cover, be socketed on successively the first insulating washer 4 of inner wire pin periphery, head seal circle 5, the second insulating washer 6, be socketed on seal ring at tail part, insulation tail cover, the second insulating washer, the head seal circle, the in succession cover 7 of the first insulating washer periphery, it is characterized in that the contact pin tail of described inner wire by front end inner chamber neck periphery after roll riveting is buckled in pin, the rear end inner chamber consists of through the tubulose contact pin tail pipe 1022 that roll riveting is snapped with hollow cone shape contact pin cauda group 1021; The contact pin tail pipe front end inner chamber junction of neck periphery and contact pin tail is designed with the annular recess 1011 that is matched with contact pin tail pipe inner chamber and apical grafting in the annular projection 1012 of contact pin tail pipe front end behind the described pin;
Shown in Fig. 5,6,7, described contact pin cauda group by with location interval 120 radians, 3 circular arc caudas 10211 that surround the hollow cone shape form;
Shown in Fig. 1,3,4, the described insulation tail that is socketed on inner wire contact pin tail periphery overlaps 2 inner chambers and is designed with apical grafting in the annular projection 21 of contact pin cauda group rear end; The contact pin tail pipe front end inner chamber junction of neck periphery and contact pin tail is designed with the annular recess 1011 that is matched with contact pin tail pipe inner chamber and apical grafting in the annular projection 1012 of contact pin tail pipe front end behind the described pin.
Shown in Fig. 1,3,4, the contact pin tail of described inner wire is referred to adopt in the annular recess 1011 of roll riveting with contact pin tail pipe 1022 front end inner chambers neck periphery after roll riveting groove 10221 is buckled in pin 101 by front end inner chamber neck periphery after roll riveting is buckled in pin.
Shown in Fig. 1,3,4, described contact pin tail pipe 1022 rear end inner chambers be snapped with 3 caudas, 10211 base portion peripheries that hollow cone shape contact pin cauda group 1021 refers to adopt roll riveting will surround the hollow cone shape by the contact pin tail pipe after the riveting roll riveting groove 10221 of neck be buckled in contact pin tail pipe 1022 rear end inner chambers.
In the implementation, the pin 101 of inner wire 1, contact pin tail pipe 1022 adopt brass or red copper, and contact pin cauda group 1021 adopts beryllium-bronze or phosphor bronze, and overlay coating adopts gold or silver-colored; Insulation tail cover the 2, first insulating washer 4, the second insulating washer 6 employing polytetrafluoroethylene or Merlon, polyethylene; Seal ring at tail part 3, head seal circle 5 adopt silicon rubber; Overlap in succession 7 and adopt brass, surperficial bright nickel plating.All adopt corresponding common process to make.
Technical scheme of the present invention mainly is used in the radio frequency (RF) coaxial connector that transmits between the tuner of satellite antenna and the antenna receiving signal.Obviously, its scope of application goes for the radio frequency (RF) coaxial connector of other purposes equally not only in this.And technical scheme of the present invention is implemented with the specification size of overlapping in succession, mode is irrelevant in succession, obviously, can have to different size, the different in succession radio frequency (RF) coaxial connectors of mode the technological improvement of same beneficial effect.
Claims (3)
1. one kind low echo radio frequency (RF) coaxial connector, include by pin (101), the inner wire (1) that contact pin tail (102) consists of, be socketed on the insulation tail cover (2) of inner wire contact pin tail periphery, be matched with the seal ring at tail part (3) of insulation tail cover, be socketed on successively first insulating washer (4) of inner wire pin periphery, head seal circle (5), the second insulating washer (6), be socketed on seal ring at tail part, insulation tail cover, the second insulating washer, the head seal circle, the in succession cover (7) of the first insulating washer periphery is characterized in that
---the contact pin tail of described inner wire is by front end inner chamber neck periphery after roll riveting is buckled in pin, and the rear end inner chamber consists of through the tubulose contact pin tail pipe (1022) that roll riveting is snapped with hollow cone shape contact pin cauda group (1021);
---the contact pin tail pipe front end inner chamber junction of neck periphery and contact pin tail is designed with the annular recess (1011) that is matched with contact pin tail pipe inner chamber and apical grafting in the annular projection (1012) of contact pin tail pipe front end behind the described pin;
---described contact pin cauda group by with location interval 120 radians, 3 circular arc caudas (10211) that surround the hollow cone shape form;
---described insulation tail cover (2) inner chamber that is socketed on inner wire contact pin tail periphery is designed with apical grafting in the annular projection (21) of contact pin cauda group rear end.
2. a kind of low echo radio frequency (RF) coaxial connector according to claim 1, it is characterized in that the contact pin tail of described inner wire by front end inner chamber neck periphery after roll riveting is buckled in pin, refers to adopt in the annular recess (1011) of roll riveting with contact pin tail pipe (1022) front end inner chamber neck periphery after roll riveting groove (10221) is buckled in pin (101).
3. a kind of low echo radio frequency (RF) coaxial connector according to claim 1, it is characterized in that described contact pin tail pipe (1022) rear end inner chamber be snapped with 3 caudas (10211) base portion periphery that hollow cone shape contact pin cauda group (1021) refers to adopt roll riveting will surround the hollow cone shape by the contact pin tail pipe after the riveting roll riveting groove (10221) of neck be buckled in contact pin tail pipe (1022) rear end inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105698720A CN103022840A (en) | 2012-12-26 | 2012-12-26 | Low-echo radio frequency coaxial connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105698720A CN103022840A (en) | 2012-12-26 | 2012-12-26 | Low-echo radio frequency coaxial connector |
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| Publication Number | Publication Date |
|---|---|
| CN103022840A true CN103022840A (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105698720A Pending CN103022840A (en) | 2012-12-26 | 2012-12-26 | Low-echo radio frequency coaxial connector |
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| Country | Link |
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| CN (1) | CN103022840A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799977A (en) * | 2017-11-23 | 2018-03-13 | 江苏明联电子科技有限公司 | A kind of coaxial radio-frequency connector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5820408A (en) * | 1996-09-23 | 1998-10-13 | Wang; Tsan-Chi | Male coaxial cable connector |
| CN1431738A (en) * | 2003-02-14 | 2003-07-23 | 王德言 | High performance radio frequeney connector |
| CN201812943U (en) * | 2010-10-21 | 2011-04-27 | 镇江市丹徒区佳兴电子有限公司 | Radio-frequency coaxial connector |
| CN203103694U (en) * | 2012-12-26 | 2013-07-31 | 江苏明联电子科技有限公司 | Low-echo radiofrequency coaxial connector |
-
2012
- 2012-12-26 CN CN2012105698720A patent/CN103022840A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5820408A (en) * | 1996-09-23 | 1998-10-13 | Wang; Tsan-Chi | Male coaxial cable connector |
| CN1431738A (en) * | 2003-02-14 | 2003-07-23 | 王德言 | High performance radio frequeney connector |
| CN201812943U (en) * | 2010-10-21 | 2011-04-27 | 镇江市丹徒区佳兴电子有限公司 | Radio-frequency coaxial connector |
| CN203103694U (en) * | 2012-12-26 | 2013-07-31 | 江苏明联电子科技有限公司 | Low-echo radiofrequency coaxial connector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799977A (en) * | 2017-11-23 | 2018-03-13 | 江苏明联电子科技有限公司 | A kind of coaxial radio-frequency connector |
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Application publication date: 20130403 |