WO2001018943A1 - Machine dynamo-electrique - Google Patents
Machine dynamo-electrique Download PDFInfo
- Publication number
- WO2001018943A1 WO2001018943A1 PCT/JP1999/004790 JP9904790W WO0118943A1 WO 2001018943 A1 WO2001018943 A1 WO 2001018943A1 JP 9904790 W JP9904790 W JP 9904790W WO 0118943 A1 WO0118943 A1 WO 0118943A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ventilation
- stator core
- cooling medium
- cooler
- fan
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
- H02K9/12—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing wherein the cooling medium circulates freely within the casing
Definitions
- the present invention relates to a rotating electric machine in which a cooler for cooling a cooling medium is installed in a machine, and a method for cooling the same.
- a rotating electric machine in which a cooler for cooling a cooling medium is installed in a machine
- a cooler for cooling a cooling medium for example, those described in JP-A-7-177705 and JP-A-10-146022 are known.
- the rotating electric machines described in these publications partition the stator frame and the stator core into a low-temperature gas chamber to which a low-temperature cooling medium is supplied and a high-temperature gas chamber into which a heated cooling medium flows, and are arranged in an axial direction.
- a plurality of coolers, which are dispersed in a rotating electric machine, are placed in the basic pit below the rotating electric machine.
- the cooling medium cooled by the plurality of coolers and boosted by the ventilator is guided to a heat source such as an iron core or a winding through a low-temperature gas chamber, and the cooled cooling medium is cooled. It is led to the cooler through the hot gas chamber.
- An object of the present invention is to provide a rotating electric machine capable of leveling a temperature rise distribution in an axial direction in the machine and a cooling method thereof.
- a basic feature of the present invention is to supply a cooled cooling medium to the axial center portion of the iron core farthest from both ends in the axial direction of the core. For this reason, a plurality of circumferentially continuous ventilation passages are provided in the axial direction between the stator frame and the stator core, and at least the axial center of the plurality of ventilation passages formed in the axial direction. Install a cooler corresponding to the ventilation path that communicates with the section. Then, the cooling medium pressurized by the booster is cooled by a cooler, and is passed from the outer peripheral side of the iron core to the axial center of the iron core through a ventilation passage communicating with the axial center of the iron core. Flow toward the inner circumference.
- the ventilation path that communicates with the axial center portion of the iron core refers to two to four ventilation paths at the center of a plurality of ventilation paths when the number of ventilation paths is even.
- the number of ventilation paths is an odd number, it indicates one to three ventilation paths at the center among the plurality of ventilation paths. Is the number of ventilation paths determined by the capacity of the rotating electric machine? For example, in the case of a generator, at least three ventilation paths are installed for a generator with a power generation capacity of 100 MW class. 7 for generators with a generating capacity of 350 MW class or more There will be 10 to 10 or more ventilation paths.
- the effect that the temperature rise distribution in the axial direction in the machine can be leveled by the above features can be achieved.
- this effect is effective for a rotating electric machine having a long shaft length and using air as a cooling medium, for example, a large-capacity air-cooled generator. Since air is more viscous than hydrogen, when it flows inside the generator, ventilation resistance is generated and the temperature rises. Since the ventilation resistance increases as the air circulation distance increases, the temperature rise of the air becomes more remarkable in a large-capacity generator with a long shaft, and the airflow at the central portion in the axial direction of the iron core decreases.
- the cooled cooling medium is supplied to the central portion in the axial direction of the iron core, the temperature rise in the central portion in the axial direction of the iron core is set to an allowable temperature or less, and the temperature rise distribution in the axial direction in the machine is equalized. Can be changed.
- leveling the temperature rise distribution in the axial direction inside the machine means that the temperature rise in the axial center of the iron core is set to the allowable temperature or less, and the axial end portions of the core and the axial center of the iron core are Means to reduce the temperature rise difference. Therefore, there is some variation in the distribution of temperature rise in the axial direction in the machine.
- FIG. 1 is a partially cutaway perspective view showing the external appearance and a part of the internal structure of a turbine generator according to a first embodiment of the present invention.
- FIG. 2 is a plan view showing the external configuration in the II direction of FIG.
- FIG. 3 is a plan view showing the external configuration in the III direction of FIG.
- FIG. 4 is a cross-sectional view taken along the line IV-IV showing the internal structure on the lower side with respect to the rotation axis in FIG.
- FIG. 5 shows a second embodiment of the present invention. It is a perspective view which shows the external appearance structure of an evening bin generator.
- FIG. 6 is a cross-sectional view taken along the line VI-VI showing the internal configuration on the upper side with respect to the rotation axis in FIG.
- FIG. 7 is a cross-sectional view showing an internal configuration of a turbine generator according to a third embodiment of the present invention on the upper side with respect to the rotating shaft.
- FIG. 8 is a cross-sectional view showing an internal configuration of a turbine generator according to a fourth embodiment of the present invention, which is located above a rotary shaft.
- FIG. 9 is a cross-sectional view showing an internal configuration of a turbine generator according to a fifth embodiment of the present invention, which is located below the rotary shaft.
- FIG. 10 is a front view showing an external configuration of a turbine generator according to a sixth embodiment of the present invention.
- FIG. 11 is a side view showing the external configuration in the XI direction of FIG. FIG.
- FIG. 12 is a cross-sectional view taken along the line XII—XII showing the internal structure when viewed from above FIG.
- FIG. 13 is a cross-sectional view showing the internal configuration on the lower side with respect to the rotation shaft of a turbine generator according to a seventh embodiment of the present invention.
- FIG. 14 is a cross-sectional view showing the internal configuration of the turbine generator according to the eighth embodiment of the present invention, which is located below the rotating shaft.
- FIG. 1 to 4 show the configuration of a turbine generator according to a first embodiment of the present invention.
- the turbine generator of this embodiment is of a closed type (or fully closed type) in which the inside of the machine is cooled by a cooling medium sealed in the machine.
- Reference numeral 1 in the figure denotes a stator frame. Inside the stator frame 1, a cylindrical stator core 2 is provided. A plurality of axially continuous slots 3 are formed in the inner peripheral portion of the stator core 2 in the circumferential direction. Slot 3 accommodates stator winding 4.
- the stator core 2 is formed with a plurality of radially continuous ventilation ducts 5 at equal intervals in the axial direction.
- a rotor core 7 is provided on the inner peripheral side of the stator core 2 via an air gear 6.
- a plurality of axially continuous slots are formed in the outer peripheral portion of the rotor core 7 in the circumferential direction.
- the slot of the rotor core 7 accommodates a rotor winding (not shown).
- a cylindrical retaining ring 8 for pressing both ends of the rotor winding is provided at both ends of the rotor core 7, a cylindrical retaining ring 8 for pressing both ends of the rotor winding is provided.
- a rotating shaft 9 extending in both axial directions is integrally provided.
- end-plates 10 which are annular closing members, are provided.
- a bearing device 11 that rotatably supports the rotating shaft 9 is provided on the inner peripheral side of the end bracket 10.
- a current collecting device 12 for supplying electric power to the rotating rotor winding.
- the current collecting device 12 electrically contacts the fixed side and the rotating side by pressing a carbon brush against the current collecting ring provided on one end of the rotating shaft 9 (outside the bearing device 11). It is connected.
- the other end of the rotating shaft 9 (outside the bearing device 11) is formed with a connection portion to a turbine as a rotation source of the generator.
- fans 13 for increasing the pressure of the cooling medium sealed in the machine and circulating it inside the machine.
- the case where the fan 13 is used as the booster for the cooling medium has been described.
- another booster may be used.
- the fans 13 provided at both ends of the rotating shaft 9 (inner than the bearing device 11) are arranged symmetrically with respect to the center line 14.
- the center line 14 is a line intersecting the rotation axis 9 at right angles, and is a bisector that symmetrically divides the end brackets 10 symmetrically.
- Terminals 15 extending upward so as to protrude from the upper surface of the stator frame 1 For three phases. Terminal 15 is for taking out the generated power from the stator winding 4 electrically connected to the outside. Hangers 16 are provided at two places on the front and two places on the back of the stator frame 1. The hanging tool 16 is used for lifting the generator body by a crane, for example, when installing the generator body on the base pit 17.
- Ventilation passages 18a to 18g are provided between the stator frame 1 and the stator core 2, circumferentially continuous ventilation paths 18a to 18g are provided in parallel in the axial direction.
- the ventilation passages 18a to 18g are provided with a plurality of annular partition plates 19 which axially partition the space between the stator frame 1 and the stator core 2, the inner surface of the stator frame 1, and the stator. It is formed from the outer peripheral surface of the iron core 2 and communicates with the ventilation duct 5.
- the ventilation passages 18 a to 18 g are arranged symmetrically with respect to the center line 14.
- Ventilation ducts 22a to 22c extending in the axial direction are provided in parallel in a direction perpendicular to the axial direction.
- the ventilation ducts 22a and 20c form a ventilation path 20 that is continuous in the axial direction.
- Ventilation path 20 communicates with ventilation paths 18b, 18d, and 18f.
- the ventilation duct 2 2b forms a ventilation path 21 continuous in the axial direction.
- Ventilation passage 21 communicates with ventilation passages 18a, 18c, 18e and 18g.
- the ventilation passages 23 to 26 are formed by partitioning the space between the stator core 2 and the end bracket 10 by an annular partition plate 27 facing the outer peripheral side of the fan 13. are doing.
- the ventilation paths 23 and 24 communicate the exhaust side of the fan 13 with the ventilation path 20 and are symmetrically arranged with respect to the center line 14.
- the ventilation passages 25 and 26 communicate the ventilation passage 21 with the inlet side of the fan 13 and are arranged symmetrically with respect to the center line 14.
- Each of the ventilation passages 18a to 18g is provided with a cooler 28 for cooling a cooling medium sealed in the machine.
- the coolers 28a to 28g are arranged below the generator so as to form a row in the axial direction.
- the coolers 28a to 28g may be arranged above the generator.
- the coolers 28 a to 28 g are arranged symmetrically with respect to the center line 14.
- the pipes 29 for supplying cooling water and the pipes 30 for discharging cooling water are connected to the coolers 28a to 28g.
- the coolers 28 a to 28 g have the same cooling capacity, and the size of the appearance differs depending on the size of the ventilation passage 18.
- the width of the ventilation passages 18b and 18f in the axial direction is smaller than that of the other ventilation passages 18 and accordingly, the width of the cooling devices 28b and 28f in the axial direction is reduced. It is smaller than the other coolers 28.
- a plurality of ventilation circuits composed of the ventilation paths described above.
- On one side of the center line 14 there are formed three ventilation circuits: a first ventilation circuit 29, a second ventilation circuit 30, and a third ventilation circuit 31.
- Three ventilation circuits are also formed on the other side of the center line 14 (on the right side in the drawing).
- the three ventilation circuits formed on one side of the center line 14 and the three ventilation circuits formed on the other side of the center line 14 are arranged symmetrically with respect to the center line 14.
- the flow of the cooling medium and the temperature rise characteristics are also symmetrical. Therefore, the configuration of the ventilation circuit on one side of the center line 14 and the flow of the cooling medium will be described below.
- the first ventilation path 29 is a closed loop indicated by a solid arrow in the figure.
- the ventilation path extends from the exhaust side of the fan 13 to the ventilation duct 5 via the air gap 6, and the ventilation duct 5 From the cooler 28a via the ventilation path 18a to the cooler 28a, and from the cooler 28a to the intake side of the fan 13 via the ventilation paths 21 and 25.
- the first ventilation path 29 is a ventilation path 18a, an air gap 6, and a ventilation duct. This is a circuit configured so that the heat source of Fig. 5 and the cooler 28a are arranged in series.
- the heat source of the air gap 6 and the ventilation path 18a is the stator core 2 which generates iron loss, and the heat source of the ventilation duct 5 generates the stator core 2 which generates iron loss and copper loss. Is the stator winding 4.
- the second ventilation circuit 30 is a closed loop indicated by a dotted arrow in the figure, and from the exhaust side of the fan 13 to the cooler 28 b via the ventilation path 23, From 28b, the ventilation path 18b, the ventilation duct 5, the air gap 6, the ventilation duct 5, the cooling path 28c to the cooling unit 28c, and from the cooling unit 28c to the ventilation path This circuit is connected to the intake side of fan 13 via 21 and 25.
- the second ventilation circuit 30 is provided with a cooler 28 b next to the heat source of the ventilation path 23, followed by the ventilation paths 18 b and 18 c, an air gap 6, and a ventilation duct 5. This is a circuit configured so that the heat source and the cooler are arranged alternately in series, followed by the cooler 28c.
- the heat source of the air gap 6 and the ventilation passages 18b and 18c is the stator core 2 that generates iron loss.
- the heat source of the ventilation duct 5 and the ventilation passage 23 is a fixed source that generates iron loss.
- the core core 2 and the stator winding 4 that causes copper loss.
- the third ventilation circuit 31 is a closed loop indicated by a dotted arrow in the figure, and from the exhaust side of the fan 13 to the cooler 28 d via the ventilation path 23, the cooler 28 d From d, the ventilation path 18 d, the ventilation duct 5, the air gap 6, the ventilation duct 5, the cooling path 28 c via the ventilation path 18 c, and from the cooling apparatus 28 c to the ventilation path 2 1 , 25 to the intake side of fan 13.
- the second ventilation circuit 30 is connected to the heat source of the ventilation path 23, the cooler 28d, the ventilation path 18d, 18c, the air gap 6, and the ventilation duct 5.
- the circuit is configured so that the heat source and the cooler are arranged alternately in series, such as the cooler 28c.
- Air gap 6 and ventilation passages 18 d, 18 c Is a stator core 2 that generates an iron loss
- the heat sources of the ventilation duct 5 and the ventilation path 23 are a stator core 2 that generates an iron loss and a stator winding 4 that generates a copper loss. .
- the rotation of the rotating shaft 9 raises the pressure of the cooling medium sealed in the machine, and flows from the exhaust side of the fan 13 to each ventilation circuit.
- the cooling medium pressurized by the fan 13 flows in the axial direction toward the ventilation duct 5 communicating with the ventilation path 18a through the air gap 6.
- the cooling medium that reaches the ventilation duct 5 communicating with the ventilation path 18a cools the inside of the stator core 2 and the stator windings 4, and moves the ventilation duct 5 from the inner circumference side of the stator core 2 to the outer circumference. It flows toward the side, that is, the ventilation passage 18a.
- the cooling medium that has reached the ventilation passage 18a cools the outer periphery of the stator core 2 and flows toward the cooler 28a.
- the cooling medium that has reached the cooler 28a is cooled by the cooler 28a, and flows to the intake side of the fan 13 via the ventilation paths 21 and 25.
- the cooling medium pressurized by the fan 13 cools the end of the stator core 2 and the coil end of the stator winding 4 while keeping the ventilation passage cool. 2 3 flows radially toward the air passage 20.
- the cooling medium that has reached the ventilation passage 20 flows in the axial direction toward the cooler 28b.
- the cooling medium that has reached the cooler 28 b is cooled by the cooler 28 b and flows circumferentially through the ventilation path 18 b while cooling the outer peripheral side of the stator core 2, and the ventilation path 18 b Flows into the ventilation duct 5 communicating with the The cooling medium that reaches the ventilation duct 5 communicating with the ventilation path 18 b cools the inside of the stator core 2 and the stator windings 4, and moves the ventilation duct 5 from the outer periphery of the stator core 2 to the inner periphery. Flows toward the side, that is, the air gap 6.
- the cooling medium that has reached air gap 6 does not cool the inner peripheral side of stator core 2. It flows in the axial direction toward the ventilation duct 5 communicating with the ventilation passage 18c.
- the cooling medium that reaches the ventilation duct 5 that communicates with the ventilation passage 18 c moves the ventilation duct 5 from the inner circumference to the outer circumference of the stator core 2 while cooling the inside of the stator core 2 and the stator windings 4. That is, it flows toward the ventilation passage 18c.
- the cooling medium that has reached the ventilation passage 18c cools the outer peripheral side of the stator core 2 and flows toward the cooler 28c.
- the cooling medium that has reached the cooler 28c is cooled by the cooler 28c, and flows to the intake side of the fan 13 via the ventilation paths 21 and 25.
- the cooling medium pressurized by the fan 13 cools the end of the stator core 2 and the coil end of the stator winding 4 while cooling the ventilation path. 2 3 flows radially toward the air passage 20.
- the cooling medium that has reached the ventilation passage 20 flows in the axial direction toward the cooler 28 d.
- the cooling medium that has reached the cooler 28 d is cooled by the cooler 28 d and flows circumferentially through the ventilation passage 18 d while cooling the outer peripheral side of the stator core 2, and the ventilation passage 18 d Flows into the ventilation duct 5 communicating with the The cooling medium that reaches the ventilation duct 5 communicating with the ventilation path 18 d cools the inside of the stator core 2 and the stator windings 4 and moves the ventilation duct 5 from the outer circumference of the stator core 2 to the inner circumference. Flows towards the side, air gap 6.
- the cooling medium that has reached the air gap 6 flows in the axial direction toward the ventilation duct 5 communicating with the ventilation path 18c while cooling the inner peripheral side of the stator core 2.
- the cooling medium that reaches the ventilation duct 5 that communicates with the ventilation passage 18 c moves the ventilation duct 5 from the inner circumference to the outer circumference of the stator core 2 while cooling the inside of the stator core 2 and the stator windings 4. That is, it flows toward the ventilation passage 18c.
- the cooling medium that has reached the ventilation passage 18c cools the outer peripheral side of the stator core 2 and flows toward the cooler 28c.
- the cooling medium that has reached the cooler 28c is cooled by the cooler 28c. Then, it is cooled and flows to the intake side of the fan 13 via the ventilation passage 21 and the ventilation passage 25.
- the cooling medium pressurized by the fan 13 is guided to the ventilation passage 18 d located at the axial center of the stator core 2.
- the cooled cooling medium was cooled by a cooler 28d, and the cooled cooling medium was allowed to flow from the outer peripheral side to the inner peripheral side of the stator core 2, so that the cooling medium was cooled.
- the cold cooling medium can be supplied to the central portion of the stator core 2 in the axial direction.
- the temperature of the supplied cooling medium is the highest, and the axial center portion of the stator core 2 where the supplied cooling medium has the smallest air volume can be cooled by the cooling medium.
- local heat generation in the air gap 6 can be suppressed, the temperature rise distribution in the machine in the axial direction can be leveled, and the thermal vibration stroke of the rotor can be suppressed.
- the turbine generator of this embodiment is a closed type (or fully closed type) with a force of 5 ', and has a shorter shaft length than that of the first embodiment (see the first embodiment). Power generation capacity is small). Further, in the turbine generator of the present embodiment, the cooler 28 and the ventilation passages 20 and 21 provided in the lower part of the generator in the first embodiment are provided in the upper part of the generator.
- Ventilation paths 18 a to 18 d which are continuous in the circumferential direction are provided in parallel in the axial direction. Ventilation passages 18 b and 18 c communicate with ventilation passage 20. Ventilation passages 18a and 18d communicate with ventilation passage 21. Coolers 28 a and 28 d are provided symmetrically with respect to the center line 14 in the ventilation path 21. Coolers 28 b and 28 c are connected to the central line 14 Is provided symmetrically with respect to. The coolers 28a to 28d are arranged so as to form a row configuration in the axial direction.
- the coolers 28b and 28c are smaller than the coolers 28a and 28d, that is, the cooling capacity is smaller.
- the cooling capacity of the coolers 28b and 28c was made smaller than that of the coolers 28a and 28d because the coolers 28b and 28c are the same as the coolers 28a and 28d.
- 28d cools a part of the cooling medium, and requires a smaller cooling capacity than the coolers 28a, 28d. Because it is good.
- the ventilation path 20 provided with the coolers 28b and 28c is smaller than the ventilation path 21 provided with the coolers 28a and 28d, so that only a small cooler can be installed. Because. Note that the coolers 28a to 28d may be arranged below the generator.
- Ventilation passage and the cooler are arranged symmetrically with respect to the center line 14, and the flow of the cooling medium and the temperature rise characteristics are similarly symmetrical. 4 will be described.
- the cooling medium sealed in the machine is pressurized and flows through each ventilation path.
- the cooling medium exhausted to the exhaust side of the fan 13 branches to the ventilation path 23 side and the air gap 6 side.
- the cooling medium branched to the air gap 6 flows toward the ventilation duct 5 communicating with the ventilation path 18 while cooling the inner peripheral side of the stator core 2.
- the cooling medium that has reached the ventilation passage 18a and the ventilation duct 5 cools the inside of the stator core 2 and the stator windings 4 and moves the ventilation duct 5 from the inner periphery to the outer periphery of the stator core 2. That is, it flows toward the ventilation passage 18a.
- the cooling medium that has reached the ventilation passage 18a cools the outer peripheral side of the stator core 2 and cools through the ventilation passage 21. Circulates toward the rejector 28 a.
- the cooling medium that has reached the cooler 28a is cooled by the cooler 28a, and flows toward the intake side of the fan 13 via the ventilation path 25.
- the cooling medium branched to the ventilation path 23 does not cool the end of the stator core 2 and the coiled part of the stator winding 4 .
- the cooling medium flows through the ventilation path 23 toward the ventilation path 20. Flows radially.
- the cooling medium that has reached the ventilation passage 20 flows in the axial direction toward the cooler 28b.
- the cooling medium that has reached the cooler 28b is cooled by the cooler 28b and flows toward the ventilation path 18b.
- the cooling medium that has reached the ventilation passage 18 b cools the outer peripheral side of the stator core 2 and flows to the ventilation duct 5 that communicates with the ventilation passage 18 b.
- the cooling medium that reaches the ventilation duct 5 communicating with the ventilation path 18 b cools the inside of the stator core 2 and the stator windings 4, and moves the ventilation duct 5 from the outer circumference to the inner circumference of the stator core 2. Flows towards the side, air gap 6.
- the cooling medium having reached the air gap 6 flows in the axial direction toward the ventilation duct 5 communicating with the air gap 18 a while cooling the inner peripheral side of the stator core 2.
- the cooling medium reaching the ventilation duct 5 communicating with the ventilation path 18a flows through the ventilation duct 5 together with the cooling medium branched from the exhaust side of the fan 13 to the air gap 6 side.
- a part of the cooling medium cooled by the coolers 28a and 28d and boosted by the fan 13 is branched, and the cooling medium 28b , 28 c, and is guided to the ventilation passage 18 b 18 c located at the axial center of the stator core 2, and the guided cooling medium is transferred from the outer periphery to the inner periphery of the stator core 2.
- the cooled cooling medium can be supplied to the central portion of the stator core 2 in the axial direction.
- the temperature of the supplied cooling medium is the highest. Therefore, the axial center of the stator core 2 where the flow volume of the supplied cooling medium is minimized can be cooled by a cooling medium, and local heat generated in the air gap 6 can be obtained. And the temperature rise distribution in the axial direction inside the machine can be leveled.
- Fig. 7 shows the configuration of the turbine generator of the third embodiment.
- This embodiment is a modification of the second embodiment, and has a longer axial length than the second embodiment.
- circumferentially continuous ventilation paths 18 a to 18 e are provided in parallel in the axial direction.
- the ventilation passages 18a, 18b, 18d, and 18e communicate with the ventilation passage 21.
- Ventilation passage 18 c communicates with ventilation passage 20.
- Coolers 28 a and 28 c are provided in the ventilation passage 21 symmetrically with respect to the center line 14.
- a cooler 28b is installed at the part of the ventilation path 20 communicating with the ventilation path 18c.
- the cooler 28b has a smaller cooling capacity than the coolers 28a and 28c.
- the cooling medium sealed in the machine is pressurized and flows through each ventilation path.
- the cooling medium exhausted to the exhaust side of the fan 13 branches to the ventilation path 23 side and the air gap 6 side.
- the cooling medium branched to the air gap 6 flows toward the ventilation duct 5 which communicates with the air gaps 18a and 18b while cooling the inner peripheral side of the stator core 2.
- the cooling medium that reached ventilation passages 18a and 18b and ventilation duct 5 was the stator core While cooling the inside of 2 and the stator winding 4, the ventilation duct 5 flows from the inner circumference to the outer circumference of the stator core 2, that is, to the ventilation paths 18 a and 18 b.
- the cooling medium that has reached the ventilation passages 18a and 18b cools the outer peripheral side of the stator core 2 and flows toward the cooler 28a via the ventilation passage 21.
- the cooling medium that has reached the cooler 28a is cooled by the cooler 28a, and flows toward the intake side of the fan 13 via the ventilation passage 25.
- the cooling medium branched to the ventilation path 23 side flows radially toward the ventilation path 20 through the ventilation path 23 while cooling the end of the stator core 2 and the coil end of the stator winding 4. .
- the cooling medium that has reached the ventilation passage 20 flows in the axial direction toward the cooler 28b.
- the cooling medium that has reached the cooler 28b is cooled by the cooler 28b and flows toward the ventilation path 18c.
- the cooling medium that has reached the ventilation passage 18c cools the outer peripheral side of the stator core 2 and flows into the ventilation duct 5 that communicates with the ventilation passage 18c.
- the cooling medium that reaches the ventilation duct 5 that communicates with the ventilation path 18 c cools the inside of the stator core 2 and the stator windings 4, and moves the ventilation duct 5 from the outer circumference to the inner circumference of the stator core 2. That is, it flows toward the air gap 6.
- the cooling medium that has reached the air gap 6 is axially directed to the ventilation duct 5 communicating with the air gaps 18a and 18b while cooling the inner peripheral side of the stator core 2. Flows.
- the cooling medium reaching the ventilation duct 5 communicating with the ventilation paths 18a and 18b flows through the ventilation duct 5 together with the cooling medium branched from the exhaust side of the fan 13 to the air gap 6 side.
- a part of the cooling medium cooled by the coolers 28 a and 28 c and boosted by the fan 13 is branched, and the cooler 28 c
- the cooling medium thus cooled is guided to the ventilation passage 18 c corresponding to the axial center of the stator core 2, and the guided cooling medium is directed from the outer periphery of the stator core 2. Since the cooling medium is circulated toward the inner peripheral side, the cooled cooling medium can be supplied to the axial center of the stator core 2.
- the temperature of the supplied cooling medium is the highest, and the cooling medium is cooled at the axial center of the stator core 2 where the amount of the supplied cooling medium is the smallest.
- the cooling medium is cooled at the axial center of the stator core 2 where the amount of the supplied cooling medium is the smallest.
- FIG. 8 shows the configuration of the turbine generator of the fourth embodiment.
- This embodiment is an example of a combination of the second embodiment and the third embodiment, and has a longer shaft length than the third embodiment.
- circumferentially continuous ventilation paths 18 a to 18 g are provided in parallel in the axial direction.
- the ventilation passages 18a, 18c, 18e, and 18g communicate with the ventilation passage 21.
- Ventilation path 18 d communicates with ventilation path 20.
- a ventilation path 31 connecting the ventilation path 23 and the ventilation path 18 b and a ventilation path 24 and a ventilation path 18 f are connected.
- the ventilation passage 32 is provided symmetrically with respect to the center line 14.
- Coolers 28 a and 28 e are provided in the ventilation passage 21 symmetrically with respect to the center line 14.
- a cooler 28c is provided at a portion where the ventilation path 20 communicates with the ventilation path 18d.
- the cooler 28c has a smaller cooling capacity than the coolers 28a and 28e.
- Coolers 28b and 28d are provided in the ventilation passage 31 symmetrically with respect to the center line 14.
- the coolers 28b and 28d have smaller cooling capacities than the coolers 28a and 28e.
- the other configuration is the same as the previous example, and the description thereof will be omitted.
- the ventilation passage and the cooler are arranged symmetrically with respect to the center line 14, and the flow of the cooling medium and the temperature rise characteristics are similarly symmetrical. Will be described on one side of the center line 14.
- the cooling medium sealed in the machine is pressurized and flows through each ventilation path.
- the cooling medium exhausted to the exhaust side of the fan 13 branches to the ventilation path 23 side and the air gap 6 side.
- the cooling medium branched to the side of the air gap 6 flows toward the ventilation duct 5 communicating with the ventilation paths 18 a and 18 c while cooling the inner peripheral side of the stator core 2.
- the cooling medium that reaches the ventilation passages 18a and 18c and the ventilation duct 5 cools the inside of the stator core 2 and the stator windings 4 and moves the ventilation duct 5 from the inner peripheral side of the stator core 2. It flows toward the outer circumference side, that is, the ventilation paths 18a and 18c.
- the cooling medium that has reached the ventilation passages 18a and 18c cools the outer peripheral side of the stator core 2 and flows through the ventilation passage 21 to the cooler 28a.
- the cooling medium that has reached the cooler 28a is cooled by the cooler 28a, and flows toward the intake side of the fan 13 through the ventilation passage 25.
- the cooling medium branched to the ventilation path 23 side flows through the ventilation path 23 toward the ventilation paths 20 and 31 while cooling the end of the stator core 2 and the coiled portion of the stator winding 4. Flows radially.
- the cooling medium that has reached the ventilation passage 20 flows in the axial direction toward the cooler 28.
- the cooling medium that has reached the cooler 28 c is cooled by the cooler 28 c and flows toward the ventilation passage 18 d.
- the cooling medium that has reached the ventilation passage 18 d cools the outer peripheral side of the stator core 2 and flows to the ventilation duct 5 that communicates with the ventilation passage 18 d.
- the cooling medium that reaches the ventilation duct 5 that communicates with the ventilation path 18 d cools the inside of the stator core 2 and the stator windings 4, and moves the ventilation duct 5 from the outer circumference to the inner circumference of the stator core 2. That is, it flows toward the air gap 6.
- the cooling medium that reaches the air gap 6 cools the inner peripheral side of the stator core 2 while cooling the air.
- the gap flows axially toward the ventilation duct 5 communicating with the ventilation passages 18a and 18c.
- the cooling medium reaching the ventilation duct 5 communicating with the ventilation passages 18a and 18c flows through the ventilation duct 5 together with the cooling medium branched from the exhaust side of the fan 13 to the air gap 6 side.
- the cooling medium that has reached the ventilation passage 31 flows axially toward the cooler 28b.
- the cooling medium that has reached the cooler 28b is cooled by the cooler 28b and flows toward the ventilation path 18b.
- the cooling medium that has reached the ventilation passage 18b cools the outer peripheral side of the stator core 2 and flows to the ventilation duct 5 that communicates with the ventilation passage 18b.
- the cooling medium that has reached the ventilation duct 5 communicating with the ventilation path 18 b cools the inside of the stator core 2 and the stator windings 4, and moves the ventilation duct 5 from the outer circumference to the inner circumference of the stator core 2. That is, it flows toward the air gap 6.
- the cooling medium that has reached the air gap 6 is axially directed toward the ventilation duct 5 communicating with the air gaps 18a and 18c while cooling the inner peripheral side of the stator core 2. Flows.
- the cooling medium reaching the ventilation duct 5 communicating with the ventilation paths 18a and 18c flows through the ventilation duct 5 together with the cooling medium branched from the exhaust side of the fan 13 to the air gap 6 side.
- a part of the cooling medium cooled by the coolers 28a and 28e and boosted by the fan 13 is branched, and the cooling medium is cooled. c, and the cooled cooling medium is guided to the ventilation path 18 d corresponding to the axial center of the stator core 2, and the guided cooling medium is supplied from the outer peripheral side of the stator core 2 to the inner side. Since the cooling medium is circulated toward the circumferential side, the cooled cooling medium can be supplied to the axial center of the stator core 2.
- the temperature of the supplied cooling medium is the highest, and the air flow of the supplied cooling medium is the smallest, so that the axial direction of the stator core 2 is minimized.
- the central part can be cooled by a cold cooling medium, local heat generation in the airgap 6 can be suppressed, and the temperature rise distribution in the machine in the axial direction can be leveled.
- Fig. 9 shows the configuration of the turbine generator of the fifth embodiment.
- This embodiment is an improved example of the first embodiment, and is an effective example when the axial length of the stator core 2 is increased.
- the axial spacing of the ventilation duct 5 provided in the stator core 2 is larger in the first ventilation circuit 29, and the ventilation distance is larger than that in the first ventilation circuit 29.
- the second ventilation circuit 30 and the third ventilation circuit 31 having a large heat load, the size is reduced.
- the other configuration is the same as that of the previous example, and the description is omitted.
- the airflow of the first ventilation circuit 29 which is close to the fan 13 and has a short ventilation distance is suppressed.
- the air volume of the second ventilation circuit 30 and the third ventilation circuit 31 far from the fan 13 and having a large ventilation distance can be increased, and the axial direction of the iron core can be increased.
- the cooling effect near the center can be improved.
- the stator core 2 and the stator in the first ventilation circuit 29 having a small heat load are provided.
- the exposed area of the winding 4 is small, the ventilation distance is large, and the heat load is large.
- the second core circuit 2 and the third core circuit 31 of the third ventilation circuit 31 expose the stator core 2 and the stator winding 4. Since the cooling area near the axial center of the iron core can be increased by increasing the area, the cooling effect near the axial center of the iron core can be further improved.
- FIGS. 10 to 12 show the configuration of the turbine generator according to the sixth embodiment.
- This embodiment is a modification of the first embodiment.
- the cooler 28 and the ventilation passages 20 and 21 provided at the lower part of the generator in the first embodiment are connected to the front of the generator (the front side of the generator). ) And the rear of the generator (on the rear side of the generator).
- Appearance Vertically arranged coolers are arranged in the front and back of the generator in the axial direction so as to protrude from the front and back.
- a cooler 28a installed in the ventilation passage 18a, a cooler 28c installed in the ventilation passage 18c, a cooler 28e installed in the ventilation passage 18e, the ventilation passage A cooler 28 g installed at 18 g is provided so as to be symmetrical with respect to the center line 14.
- ventilation passages 21 communicating with ventilation passages 18a, 18c, 18e and 18g are provided in front of the generator.
- a cooler 28 b installed in the ventilation passage 18 b, a cooler 28 d installed in the ventilation passage 18 d, and a cooler 28 f installed in the ventilation passage 18 f are connected to the center line 1. It is provided so as to be symmetrical with respect to 4.
- an air passage 20 communicating with the air passages 18b, 18d, 18e is provided at the front of the generator. The other configuration is the same as that of the first embodiment, and the description is omitted.
- the coolers 28a, 28c, 28c are provided on one side (front of the generator) between the stator frame 1 and the stator core 2 facing each other with the rotating shaft 9 as a boundary.
- the first ventilation circuit 29 the second ventilation circuit 30
- Out of the third ventilation circuit 31 a portion of the cooling medium flowing from the inner peripheral side to the outer peripheral side of the stator core 2 and passing through the cooler 28 is formed at the front of the generator, and the cooling medium is formed.
- the part can be formed at the rear of the generator.
- FIG. 13 shows the configuration of the turbine generator of the seventh embodiment.
- the evening bin generator of this embodiment is of an open type in which the inside is cooled by outside air taken into the inside of the machine.
- Reference numeral 50 in the figure denotes a stator frame. Inside the stator frame 50, a cylindrical stator core 51 is provided. A plurality of axially continuous slots are formed in the inner peripheral portion of the stator core 51 in the circumferential direction, and the slots accommodate the stator windings 52. A plurality of radially continuous ventilation ducts 53 are formed in the stator core 51 at equal intervals in the axial direction.
- a rotor core 55 is provided on the inner peripheral side of the stator core 51 via an air gear 54.
- a plurality of axially continuous slots are formed in the outer circumferential portion of the rotor core 55 in the circumferential direction, and the slots accommodate the rotor windings.
- Both ends of the rotor core 55 are provided with cylindrical retaining rings 56 for pressing both ends of the rotor winding.
- a rotating shaft 57 extending in both axial directions is provided integrally.
- end brackets 58 as annular closing members are provided.
- a bearing device for rotatably supporting the rotating shaft 57 is provided on the inner peripheral side of the end bracket 58.
- One end of rotating shaft 5 7 (shaft A power collecting device that supplies power to the rotating rotor winding is provided on the outside of the receiving device.
- the other end of the rotating shaft 57 (outside the bearing device) forms a connection with the turbine, which is the generator's rotation source.
- Fans 59 are provided at both ends of the rotating shaft 57 (inside of the bearing device) to increase the pressure of the cooling medium sealed in the machine and circulate it inside the machine.
- the case where the fan 59 is used as the booster for the cooling medium has been described.
- another booster may be used.
- the fans 59 provided at both ends of the rotating shaft 57 (inside the bearing device) are symmetrically arranged with respect to the center line 60.
- the center line 60 is an intersecting line that intersects the rotation axis 57 at a right angle, and is a bisector that symmetrically divides the end brackets 58 into left and right parts. Is the air inside the end bracket 58 to take in outside air into the machine? Then, set 61 so as to face fan 59.
- a discharge vent 62 for discharging outside air taken into the machine to the outside of the machine.
- the ventilation passages 63 a to 63 g are provided in parallel in the axial direction.
- the ventilation passages 63 a to 63 g are provided with a plurality of annular partition plates 64 that axially partition the space between the stator frame 50 and the stator core 51, and the inner surface of the stator frame 50, and fixed. It is formed from the outer peripheral surface of the iron core 51 and communicates with the ventilation duct 53.
- the ventilation passages 63a to 63g are symmetrically arranged with respect to the center line 60.
- Ventil paths 65, 66 that are continuous in the radial direction.
- the ventilation path 65 and the ventilation path 66 are arranged symmetrically with respect to the center line 60.
- the air inlet 61 and the inlet side of the fan 59 communicate with each other.
- the ventilation passages 67, 68 are formed by partitioning the space between the stator core 51 and the end bracket 58 by a cylindrical partition plate 69, and have a center line. It is symmetrical with respect to 60.
- Ventilation passages 65, 66 and ventilation passages 63b, 63d, 63 3 are connected, and a ventilation passage 70 that is continuous in the axial direction is provided.
- the lower part of the generator communicates with the exhaust hole 62 and the ventilation passages 63a, 63c, 63e, and 63g, and has a ventilation passage 71 that is continuous in the axial direction.
- Each of the ventilation passages 63b, 63d, 63 3 is provided with a cooler 72 for cooling a cooling medium taken in from outside the machine.
- the coolers 72a to 72c are arranged below the generator so as to form a row in the axial direction. Note that the coolers 72a to 72c may be arranged above the generator.
- the coolers 7 2 a to 7 2 c are arranged symmetrically with respect to the center line 60.
- the pipes for supplying the cooling water and the pipes for discharging the cooling water are connected to the coolers 72a to 72c.
- the coolers 72a to 72c have the same cooling capacity.
- a plurality of ventilation circuits composed of the ventilation paths described above.
- On one side (left side in the drawing) of the center line 60 there are formed three ventilation circuits: a first ventilation circuit 73, a second ventilation circuit 74, and a third ventilation circuit 75.
- Three ventilation circuits are also formed on the other side of the center line 60 (on the right side in the drawing).
- the three ventilation circuits formed on one side of the center line 60 and the three ventilation circuits formed on the other side of the center line 60 are arranged symmetrically with respect to the center line 60 for cooling.
- the medium flow and temperature rise characteristics are also symmetrical. Therefore, the configuration of the ventilation circuit on one side of the center line 60 and the flow of the cooling medium will be described below.
- the first ventilation path 73 is an open loop indicated by a solid arrow in the figure.
- the first ventilation path 73 extends from the air inlet 61 to the fan 59 via the ventilation path 67, and the fan 59 This is a circuit that goes from the air gap 54, the ventilation duct 53, the ventilation path 63a, and the ventilation hole 62 through the ventilation path 71.
- the second ventilation circuit 74 is an open loop indicated by a dotted arrow in the figure, and extends from the air inlet 61 to the fan 59 through the ventilation passage 67, and from the fan 59 to the fan 59. Through the ventilation path 65 and the ventilation path 70, it reaches the cooler 72a. From the cooler 72a, the ventilation path 63b, the ventilation duct 53, the air gap 54, and the ventilation duct 5 3, ventilation path 6 3c, and circuit reaching exhaust hole 6 2 through ventilation path 7 1.
- the third ventilation circuit 75 is an open loop indicated by a dotted arrow in the figure, and extends from the air inlet 61 to the fan 59 through the ventilation passage 67 to the fan 59.
- the ventilation duct 53, the air gap 54, and the ventilation duct. 5 3 the ventilation path 6 3 c, and the circuit reaching the exhaust hole 6 2 via the ventilation path 7 1.
- the outside air is taken into the machine through the air inlet 61 by the rotation of the fan 59, and reaches the inlet side of the fan 59 through the ventilation passage 67.
- the outside air is boosted by the fan 59 and flows from the exhaust side of the fan 59 to each ventilation circuit.
- the outside air pressurized by the fan 59 communicates with the ventilation passage 63 a through the air gap 54 while cooling the inner peripheral side of the stator core 51. It flows in the axial direction toward the ventilation duct 53.
- the outside air reaching the ventilation duct 53 communicating with the ventilation path 63a is used to cool the inside of the stator core 51 and the stator windings 52, and then the ventilation duct 53 to the stator core 51. It flows from the peripheral side to the outer peripheral side, that is, to the ventilation passage 63a.
- the outside air that has reached the ventilation passage 18a cools the outer peripheral side of the stator core 51, and the exhaust hole passes through the ventilation passage 71. 6 to 2 flows.
- the outside air boosted by the fan 59 cools the end of the stator core 51 and the coil end of the stator winding 52, while cooling the ventilation path. 6 5 flows radially toward the ventilation path 70.
- the outside air reaching the ventilation passage 70 flows in the axial direction toward the cooler 72a.
- the outside air that has reached the cooler 72 a is cooled by the cooler 72 a and flows circumferentially through the ventilation passage 63 b while cooling the outer peripheral side of the stator core 51, and the ventilation passage 63 It flows to the ventilation duct 53 that communicates with b.
- the outside air that has reached the ventilation duct 53 communicating with the ventilation path 63 b is used to cool the inside of the stator core 51 and the stator windings 52, and then passes the ventilation duct 53 to the outer periphery of the stator core 51. From the inner circumference, that is, toward the air gap 54. The outside air having reached the air gap 54 flows in the axial direction toward the ventilation duct 53 communicating with the ventilation passage 63 c while cooling the inner peripheral side of the stator core 51.
- the outside air that has reached the ventilation duct 53 communicating with the ventilation path 63c is used to cool the inside of the stator core 51 and the stator windings 52 while passing the ventilation duct 53 to the inner periphery of the stator core 2. From the side to the outer peripheral side, that is, to the ventilation path 63c. The outside air that has reached the ventilation passage 63c cools the outer peripheral side of the stator core 51 and flows to the exhaust hole 62 through the ventilation passage 71.
- the outside air boosted by the fan 59 cools the end of the stator core 51 and the coil end of the stator winding 52, while cooling the ventilation path. 6 5 circulates toward the ventilation channel 70.
- the outside air that has reached the ventilation path 70 flows in the axial direction toward the cooler 72b.
- the outside air that has reached the cooler 72b is cooled by the cooler 72b, and flows through the ventilation passage 63d in the circumferential direction while cooling the outer peripheral side of the stator core 51. Ventilation duct communicating with d 5 to 3 flows.
- the outside air that has reached the ventilation duct 53 communicating with the ventilation path 63 d cools the ventilation duct 53 while cooling the inside of the stator core 51 and the stator winding 52, and the outer periphery of the stator core 51. From the inner circumference, that is, toward the air gap 54. Eagya Tsu outside air that has reached the flop 5 4 towards the ventilation duct 5 3 communicating with the ventilation passage 6 3 c cooling Shinano force 5 'et Eagya-up 5 4 an inner circumferential side of the stator core 5 uniaxial Flows in the direction.
- the outside air that has reached the ventilation duct 53 communicating with the ventilation path 63 c is used to cool the inside of the stator core 51 and the stator windings 52 while passing the ventilation duct 53 to the inner periphery of the stator core 2. From the side to the outer peripheral side, that is, to the ventilation path 63c. The outside air that has reached the ventilation passage 63c cools the outer peripheral side of the stator core 51 and flows to the exhaust hole 62 through the ventilation passage 71.
- the outside air taken in from the outside of the machine and boosted by the fan 59 is provided at the axial center of the stator core 51 in the axial direction. It is guided to the path 63d, and the guided outside air is cooled by the cooler 72b, and the cooled outside air flows from the outer peripheral side of the stator core 51 to the inner peripheral side. As a result, the cooled cold outside air can be supplied to the central portion of the stator core 51 in the axial direction.
- FIG. 14 shows the configuration of the turbine generator according to the eighth embodiment.
- This embodiment is the This is a modification of the seventh embodiment, and is an open-type turbine generator as in the seventh embodiment.
- the coolers 72 a and 72 b are provided on the end side of the ventilation passage 70 symmetrically with respect to the center line 60.
- Other configurations are the same as those of the seventh embodiment, and description thereof will be omitted.
- the same ventilation circuit and outside air flow as in the seventh embodiment can be configured, and the same effects as in the seventh embodiment can be achieved, and the number of coolers is reduced by one.
- the configuration of the generator can be simplified, and the cost can be reduced.
- the present invention is effective for a rotating electric machine in which a cooler for cooling a cooling medium such as air or hydrogen gas is installed in a machine.
- a cooling medium such as air or hydrogen gas
- the present invention is effective for a rotating electric machine using air as a cooling medium, that is, an air-cooled generator.
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/509,768 US6724107B1 (en) | 1999-09-03 | 1999-09-03 | Dynamo-electric machine |
JP2000582471A JP3332039B2 (ja) | 1999-09-03 | 1999-09-03 | 回転電機 |
PCT/JP1999/004790 WO2001018943A1 (fr) | 1999-09-03 | 1999-09-03 | Machine dynamo-electrique |
DE69923799T DE69923799T2 (de) | 1999-09-03 | 1999-09-03 | Dynamoelektrische maschine |
EP99940649A EP1220424B1 (en) | 1999-09-03 | 1999-09-03 | Dynamo-electric machine |
US10/820,699 US6936939B2 (en) | 1999-09-03 | 2004-04-09 | Rotating electric machine and cooling method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1999/004790 WO2001018943A1 (fr) | 1999-09-03 | 1999-09-03 | Machine dynamo-electrique |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09509768 A-371-Of-International | 1999-09-03 | ||
US09/509,768 A-371-Of-International US6724107B1 (en) | 1999-09-03 | 1999-09-03 | Dynamo-electric machine |
US10/820,699 Continuation US6936939B2 (en) | 1999-09-03 | 2004-04-09 | Rotating electric machine and cooling method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001018943A1 true WO2001018943A1 (fr) | 2001-03-15 |
Family
ID=14236625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/004790 WO2001018943A1 (fr) | 1999-09-03 | 1999-09-03 | Machine dynamo-electrique |
Country Status (5)
Country | Link |
---|---|
US (2) | US6724107B1 (ja) |
EP (1) | EP1220424B1 (ja) |
JP (1) | JP3332039B2 (ja) |
DE (1) | DE69923799T2 (ja) |
WO (1) | WO2001018943A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007282366A (ja) * | 2006-04-06 | 2007-10-25 | Hitachi Ltd | 回転電機 |
JP2015047062A (ja) * | 2013-08-16 | 2015-03-12 | ハミルトン・サンドストランド・コーポレーション | 開ループ能動的冷却を備える発電機 |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6776614B2 (en) | 2002-02-13 | 2004-08-17 | Lingualcare, Inc. | Modular system for customized orthodontic appliances |
WO2004005009A1 (fr) * | 2002-07-02 | 2004-01-15 | Createx S.A. | Procede de fabrication de toiles formees et renforcees |
US6928733B2 (en) | 2002-11-06 | 2005-08-16 | Lingualcare, Inc. | Method and system for customizing an orthodontic archwire |
WO2006026952A1 (de) * | 2004-09-09 | 2006-03-16 | Siemens Aktiengesellschaft | Elektrisches aggregat |
US7240528B2 (en) * | 2004-11-22 | 2007-07-10 | Lingualcare, Inc. | Method and device for shaping an orthodontic archwire |
US20070013241A1 (en) * | 2005-07-13 | 2007-01-18 | Schiferl Rich F | Lamination stack cooling path |
US7466053B1 (en) * | 2008-04-10 | 2008-12-16 | Vladimir Radev | Dual-rotor electric traction motor |
JP4528865B2 (ja) * | 2008-04-25 | 2010-08-25 | 株式会社日立製作所 | 回転電機 |
DE102008064495B3 (de) * | 2008-12-23 | 2010-10-21 | Siemens Aktiengesellschaft | Elektrische Maschine mit mehreren Kühlströmen und Kühlverfahren |
WO2010097837A1 (ja) * | 2009-02-27 | 2010-09-02 | 株式会社日立製作所 | 永久磁石式発電機 |
FR2950494B1 (fr) * | 2009-09-23 | 2011-12-09 | Converteam Technology Ltd | Machine electrique pressurisee |
TWI401171B (zh) * | 2009-12-24 | 2013-07-11 | Ind Tech Res Inst | 輪轂馬達 |
KR20110112074A (ko) * | 2010-04-06 | 2011-10-12 | 삼성전자주식회사 | 기판 처리 장치 및 방법 |
US8513840B2 (en) | 2010-05-04 | 2013-08-20 | Remy Technologies, Llc | Electric machine cooling system and method |
WO2011153533A2 (en) | 2010-06-04 | 2011-12-08 | Remy Technologies, Llc | Electric machine cooling system and method |
US8519581B2 (en) | 2010-06-08 | 2013-08-27 | Remy Technologies, Llc | Electric machine cooling system and method |
US8456046B2 (en) | 2010-06-08 | 2013-06-04 | Remy Technologies, Llc | Gravity fed oil cooling for an electric machine |
US8269383B2 (en) | 2010-06-08 | 2012-09-18 | Remy Technologies, Llc | Electric machine cooling system and method |
US8659190B2 (en) | 2010-06-08 | 2014-02-25 | Remy Technologies, Llc | Electric machine cooling system and method |
US8614538B2 (en) | 2010-06-14 | 2013-12-24 | Remy Technologies, Llc | Electric machine cooling system and method |
US8482169B2 (en) | 2010-06-14 | 2013-07-09 | Remy Technologies, Llc | Electric machine cooling system and method |
US8446056B2 (en) | 2010-09-29 | 2013-05-21 | Remy Technologies, Llc | Electric machine cooling system and method |
US8593021B2 (en) | 2010-10-04 | 2013-11-26 | Remy Technologies, Llc | Coolant drainage system and method for electric machines |
US8492952B2 (en) | 2010-10-04 | 2013-07-23 | Remy Technologies, Llc | Coolant channels for electric machine stator |
US8508085B2 (en) | 2010-10-04 | 2013-08-13 | Remy Technologies, Llc | Internal cooling of stator assembly in an electric machine |
US8395287B2 (en) | 2010-10-04 | 2013-03-12 | Remy Technologies, Llc | Coolant channels for electric machine stator |
US8648506B2 (en) | 2010-11-09 | 2014-02-11 | Remy Technologies, Llc | Rotor lamination cooling system and method |
US8497608B2 (en) | 2011-01-28 | 2013-07-30 | Remy Technologies, Llc | Electric machine cooling system and method |
WO2012145302A2 (en) | 2011-04-18 | 2012-10-26 | Remy Technologies, Llc | Electric machine module cooling system and method |
US8692425B2 (en) | 2011-05-10 | 2014-04-08 | Remy Technologies, Llc | Cooling combinations for electric machines |
WO2012167274A1 (en) | 2011-06-03 | 2012-12-06 | Remy Technologies, Llc | Electric machine module cooling system and method |
US9041260B2 (en) | 2011-07-08 | 2015-05-26 | Remy Technologies, Llc | Cooling system and method for an electronic machine |
US8803381B2 (en) | 2011-07-11 | 2014-08-12 | Remy Technologies, Llc | Electric machine with cooling pipe coiled around stator assembly |
US8546982B2 (en) | 2011-07-12 | 2013-10-01 | Remy Technologies, Llc | Electric machine module cooling system and method |
US9048710B2 (en) | 2011-08-29 | 2015-06-02 | Remy Technologies, Llc | Electric machine module cooling system and method |
US8975792B2 (en) | 2011-09-13 | 2015-03-10 | Remy Technologies, Llc | Electric machine module cooling system and method |
AR083135A1 (es) * | 2011-10-05 | 2013-02-06 | Ind Metalurgicas Pescarmona S A I C Y F | Generador eolico sincronico |
US9099900B2 (en) | 2011-12-06 | 2015-08-04 | Remy Technologies, Llc | Electric machine module cooling system and method |
US9331543B2 (en) | 2012-04-05 | 2016-05-03 | Remy Technologies, Llc | Electric machine module cooling system and method |
US10069375B2 (en) | 2012-05-02 | 2018-09-04 | Borgwarner Inc. | Electric machine module cooling system and method |
US20140292122A1 (en) * | 2013-04-01 | 2014-10-02 | Hamilton Sunstrand Corporation | Motor cooling apparatus and method |
EP3151393A1 (de) * | 2015-09-30 | 2017-04-05 | Siemens Aktiengesellschaft | Elektrische maschine mit variablem kühlsystem |
US20190309644A1 (en) * | 2018-04-10 | 2019-10-10 | Elysium Solutions LLC | Electrical power generation assembly having recovery gas efficiency |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4264834A (en) * | 1976-06-01 | 1981-04-28 | General Electric Company | Flexible serrated abradable stator mounted air gap baffle for a dynamoelectric machine |
JPH10150740A (ja) * | 1996-11-19 | 1998-06-02 | Hitachi Ltd | 回転電機 |
JPH11122872A (ja) * | 1997-08-23 | 1999-04-30 | Abb Res Ltd | ターボジェネレーター |
Family Cites Families (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1944107A (en) * | 1931-03-09 | 1934-01-16 | Gen Electric | Totally inclosed dynamo-electric machine |
US2573383A (en) * | 1950-07-26 | 1951-10-30 | Allis Chalmers Mfg Co | Totally enclosed dynamoelectric machine utilizing a single cooling fan |
US2640347A (en) * | 1951-04-30 | 1953-06-02 | Joseph J Majeski | Key case |
US2789613A (en) * | 1955-04-21 | 1957-04-23 | Harry B Corsaw | Key holder |
CH373810A (de) | 1959-10-31 | 1963-12-15 | Bbc Brown Boveri & Cie | Kühlanordnung an einem Turbogenerator |
US3109538A (en) * | 1961-01-31 | 1963-11-05 | Robert W Boxer | Blade dispenser |
US3354678A (en) * | 1965-08-23 | 1967-11-28 | Stifelman Jack | Key case |
US3348081A (en) * | 1965-09-16 | 1967-10-17 | Gen Electric | Gap pickup rotor with gas segregating baffles |
US3571635A (en) * | 1969-04-07 | 1971-03-23 | Gen Electric | Turbine-generator stator frames |
CA1050599A (en) | 1975-06-16 | 1979-03-13 | Westinghouse Electric Corporation | Ventilation system for dynamoelectric machines |
US4182966A (en) | 1975-06-16 | 1980-01-08 | Westinghouse Electric Corp. | Ventilation system for dynamoelectric machines |
US4028569A (en) | 1975-06-16 | 1977-06-07 | Westinghouse Electric Corporation | Ventilation system for dynamoelectric machines |
JPS5914968B2 (ja) * | 1978-07-28 | 1984-04-06 | 株式会社日立製作所 | 回転電機の通風冷却装置 |
JPS55144745A (en) | 1979-04-25 | 1980-11-11 | Toshiba Corp | Salient-pole type rotary machine |
US4383853A (en) | 1981-02-18 | 1983-05-17 | William J. McCollough | Corrosion-resistant Fe-Cr-uranium238 pellet and method for making the same |
JPS5829345A (ja) | 1981-08-14 | 1983-02-21 | Toshiba Corp | 突極形回転電機 |
JPS58121166A (ja) | 1982-01-08 | 1983-07-19 | Pioneer Electronic Corp | テ−プレコ−ダのリ−ル軸駆動装置 |
JPS58151845A (ja) | 1982-03-05 | 1983-09-09 | Hitachi Ltd | 回転電機 |
JPS60162432A (ja) | 1984-02-01 | 1985-08-24 | Mitsubishi Electric Corp | 全閉形回転電気機械の冷却装置 |
PT81912B (pt) * | 1985-10-28 | 1992-11-30 | Remy & Cie E P | Transportador de recipientes |
US4739897A (en) * | 1986-03-17 | 1988-04-26 | Butler Lorraine M | Holder for the protection of remote electronic devices |
CH672402A5 (ja) * | 1987-04-13 | 1989-11-30 | Plaston Ag | |
US4792058A (en) * | 1987-05-04 | 1988-12-20 | Parker Robert J | Business card dispenser |
US4887739A (en) * | 1988-05-31 | 1989-12-19 | Parker Robert J | Business card dispenser |
JPH02136050A (ja) | 1988-11-15 | 1990-05-24 | Fuji Electric Co Ltd | 回転電機の冷却通風装置 |
JPH046271A (ja) | 1990-04-24 | 1992-01-10 | Anelva Corp | マルチカソードスパッタリング装置 |
JPH04351439A (ja) | 1991-05-28 | 1992-12-07 | Toshiba Corp | 回転電機 |
US5484063A (en) * | 1994-04-13 | 1996-01-16 | Maxtor Corporation | HDD carrying case |
WO1996018320A2 (en) * | 1994-12-16 | 1996-06-20 | Florjancic Peter | Plastic holder for two credit cards |
JPH08331781A (ja) | 1995-05-31 | 1996-12-13 | Shinko Electric Co Ltd | かご形三相誘導電動機の回転子と固定子のダクト配列 |
JPH097005A (ja) * | 1995-06-14 | 1997-01-10 | Kenji Tsuge | 自動改札機に対する定期券出入装置 |
DE19632215A1 (de) * | 1996-08-09 | 1998-02-12 | Fischer Artur Werke Gmbh | Gehäuse zum Aufbewahren mehrerer Scheckkarten |
DE19645272A1 (de) | 1996-11-02 | 1998-05-07 | Asea Brown Boveri | Gasgekühlte elektrische Maschine |
JP2000139050A (ja) | 1998-10-30 | 2000-05-16 | Hitachi Ltd | 回転電機 |
JP3289698B2 (ja) | 1998-11-25 | 2002-06-10 | 株式会社日立製作所 | 回転電機 |
DE19856456A1 (de) | 1998-12-03 | 2000-06-08 | Asea Brown Boveri | Gasgekühlte elektrische Maschine mit einem Axialventilator |
US6316852B1 (en) | 1999-04-28 | 2001-11-13 | Hitachi, Ltd. | Rotating machine |
JP2001238388A (ja) | 2000-02-25 | 2001-08-31 | Hitachi Ltd | 回転電機の電機子巻線および回転電機 |
JP2001258190A (ja) | 2000-03-13 | 2001-09-21 | Hitachi Ltd | 回転電機 |
-
1999
- 1999-09-03 JP JP2000582471A patent/JP3332039B2/ja not_active Expired - Fee Related
- 1999-09-03 EP EP99940649A patent/EP1220424B1/en not_active Expired - Lifetime
- 1999-09-03 WO PCT/JP1999/004790 patent/WO2001018943A1/ja active IP Right Grant
- 1999-09-03 DE DE69923799T patent/DE69923799T2/de not_active Expired - Lifetime
- 1999-09-03 US US09/509,768 patent/US6724107B1/en not_active Expired - Lifetime
-
2004
- 2004-04-09 US US10/820,699 patent/US6936939B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4264834A (en) * | 1976-06-01 | 1981-04-28 | General Electric Company | Flexible serrated abradable stator mounted air gap baffle for a dynamoelectric machine |
JPH10150740A (ja) * | 1996-11-19 | 1998-06-02 | Hitachi Ltd | 回転電機 |
JPH11122872A (ja) * | 1997-08-23 | 1999-04-30 | Abb Res Ltd | ターボジェネレーター |
Non-Patent Citations (1)
Title |
---|
See also references of EP1220424A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007282366A (ja) * | 2006-04-06 | 2007-10-25 | Hitachi Ltd | 回転電機 |
JP2015047062A (ja) * | 2013-08-16 | 2015-03-12 | ハミルトン・サンドストランド・コーポレーション | 開ループ能動的冷却を備える発電機 |
US10587170B2 (en) | 2013-08-16 | 2020-03-10 | Hamilton Sundstrand Corporation | Generators with open loop active cooling |
Also Published As
Publication number | Publication date |
---|---|
EP1220424A4 (en) | 2002-11-27 |
JP3332039B2 (ja) | 2002-10-07 |
DE69923799D1 (de) | 2005-03-24 |
DE69923799T2 (de) | 2006-02-09 |
US20040189110A1 (en) | 2004-09-30 |
US6724107B1 (en) | 2004-04-20 |
EP1220424A1 (en) | 2002-07-03 |
EP1220424B1 (en) | 2005-02-16 |
US6936939B2 (en) | 2005-08-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2001018943A1 (fr) | Machine dynamo-electrique | |
US2618756A (en) | Liquid cooled electrical machine | |
JP5642393B2 (ja) | 電気機械の冷却 | |
US3739208A (en) | Reverse flow cooling system for a dynamoelectric machine | |
US6943469B2 (en) | Supplemented zonal ventilation system for electric generator | |
US4051400A (en) | End gas gap baffle structure for reverse flow cooled dynamoelectric machine | |
US6239518B1 (en) | AC generator for vehicle | |
JPH04229049A (ja) | 電気機械の回転子の液体冷却 | |
US3660702A (en) | Direct-cooled rotor for rotary electric machines | |
JP2010104225A (ja) | 電動機械ロータの伝熱強化 | |
US3906265A (en) | Honeycomb stator inserts for improved generator cooling | |
CN107750414B (zh) | 电机 | |
US6737768B2 (en) | Rotating electric machine | |
CN218472873U (zh) | 轴向磁通电机及车辆 | |
US4163163A (en) | Non-salient pole synchronous electric generator | |
US10763727B2 (en) | Heat exchanger for electric machines with double end to center cooling | |
JP4320950B2 (ja) | 回転電機の冷却方法 | |
CA1038439A (en) | Air-cooled rotary dynamoelectric machine | |
EP1544979A2 (en) | Thermal management of rotor endwinding coils | |
JP4857874B2 (ja) | 回転電機 | |
JP2014117087A (ja) | 回転電機 | |
JPWO2020261561A1 (ja) | 回転電機 | |
JP2001045712A (ja) | 円筒形同期機 | |
JP4299962B2 (ja) | 回転電機 | |
JP2003088022A (ja) | 回転電機,回転子,回転電機の製造方法及び回転電機の運転方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 09509768 Country of ref document: US |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CN IN JP KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1999940649 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1999940649 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1999940649 Country of ref document: EP |