CN112104167B - Motor based on pulsating heat pipe - Google Patents
Motor based on pulsating heat pipe Download PDFInfo
- Publication number
- CN112104167B CN112104167B CN202010454820.3A CN202010454820A CN112104167B CN 112104167 B CN112104167 B CN 112104167B CN 202010454820 A CN202010454820 A CN 202010454820A CN 112104167 B CN112104167 B CN 112104167B
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- Prior art keywords
- heat pipe
- stator
- pulsating heat
- liquid cooling
- winding
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- 238000004804 winding Methods 0.000 claims abstract description 75
- 238000001816 cooling Methods 0.000 claims abstract description 66
- 230000005494 condensation Effects 0.000 claims abstract description 19
- 238000009833 condensation Methods 0.000 claims abstract description 19
- 238000001704 evaporation Methods 0.000 claims abstract description 19
- 230000008020 evaporation Effects 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims description 75
- 239000000110 cooling liquid Substances 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/20—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention provides a motor based on a pulsating heat pipe, which comprises a distributed stator winding, a stator core, a central shaft and the pulsating heat pipe, wherein the stator winding, the stator core and the central shaft are coaxially arranged; the stator core is provided with a plurality of stator slots for placing windings; the pulsating heat pipe comprises a condensation section and an evaporation section; in the radial direction of the stator, the evaporation section of the pulsating heat pipe in the stator slot is positioned between the bottom of the stator slot and one effective edge of the stator winding. According to the technical scheme, the winding is directly cooled through the pulsating heat pipe, the temperature of the stator assembly is reduced, and the cooling efficiency of the motor is improved.
Description
Technical Field
The invention relates to the field of motors, in particular to a motor based on a pulsating heat pipe.
Background
The motor can produce heat in the course of the work, and motor high temperature can bring a series of problems. Excessive stator winding temperatures can lead to insulation failure and eventual burn-out of the motor. Excessive temperatures can reduce lubrication within the bearing leading to shortened bearing life and also can damage the strength of the shaft leading to greater radial expansion. This requires that good cooling must be ensured during long periods of operation of the machine. At present, the cooling mode of the motor is mainly air cooling and liquid cooling, and the temperature rise of the motor can be controlled within a certain range. But still has the following problems: air cooling and liquid cooling are mostly performed on the shell for heat dissipation, so that the interior of the motor cannot be cooled well, and the temperature of a stator assembly in the motor is high; the end part of the winding is exposed in the air in the cavity and is not directly contacted with the shell, the temperature is increased, and the temperature difference of the winding along the axial direction of the motor is large; the difference in temperature between the inner and outer parts of the motor may cause the wear of mechanical parts due to the difference in thermal stress.
Disclosure of Invention
The invention aims to provide a motor based on a pulsating heat pipe, which can directly cool a winding through the pulsating heat pipe, reduce the temperature of a stator assembly and improve the cooling efficiency of the motor.
In order to solve the technical problem, the invention provides a motor based on a pulsating heat pipe, which comprises a distributed stator winding, a stator core and a central shaft, wherein the stator winding, the stator core and the central shaft are coaxially arranged; the stator core is provided with a plurality of stator slots for placing windings; the heat pipe comprises a condensation section and an evaporation section; in the radial direction of the stator core, the evaporation section of the pulsating heat pipe in the stator slot is positioned between the bottom of the stator slot and one effective edge of the stator winding.
In a specific embodiment, the stator winding is a single-layer distributed winding; the pulsating heat pipe is separated from the bottom of the stator slot by insulating paper.
In a specific embodiment, the stator winding is a double-layer distributed winding; and an evaporation section of the pulsating heat pipe is arranged between the effective edges of two different phases in the stator slot in the radial direction of the stator core.
In a specific embodiment, an evaporation section of the pulsating heat pipe is arranged between the effective edge closest to the bottom of the stator slot and the bottom of the stator slot in the radial direction of the stator.
In a specific embodiment, the ends of the stator windings are bundled with the evaporator section of the pulsating heat pipe.
In a specific embodiment, the device further comprises a casing; the stator winding and the stator iron core are arranged in the shell; one end of the shell is connected with a liquid cooling box; the condensation section of the pulsating heat pipe is arranged in the liquid cooling box and is in direct contact with the cooling liquid in the liquid cooling box.
In a specific embodiment, one end of the liquid cooling tank close to the stator winding is provided with a plurality of abdicating holes for the pulsating heat pipe to pass through.
In a specific embodiment, a heat insulation section is further arranged between the evaporation section and the condensation section of the pulsating heat pipe; the heat insulation section is a pulsating heat pipe from the part extending out of the stator winding to the part penetrating through the abdicating hole; the heat insulation section of the pulsating heat pipe is fixedly connected with the abdicating hole through insulating heat-conducting glue.
In a specific embodiment, the liquid cooling box comprises an annular flow guide groove which is arranged by taking a central shaft as a center, a partition plate which partitions the annular flow guide groove into one-way flow guide grooves is arranged in the liquid cooling box, and a liquid inlet and a liquid outlet of the liquid cooling box are respectively arranged on two sides of the partition plate; the annular diversion groove is internally provided with an outer diversion plate connected with the outer ring surface of the annular diversion groove and an inner diversion plate connected with the inner ring surface of the annular diversion groove in a staggered manner; the length directions of the outer guide plate and the inner guide plate are parallel to the central shaft, and the width directions of the outer guide plate and the inner guide plate are arranged along the radial direction of the central shaft.
In a specific embodiment, the liquid inlet and the liquid outlet are arranged at one end of the liquid cooling box far away from the stator winding;
one end of the liquid cooling box, which is close to the stator winding, is provided with a first abdicating groove, and the central shaft passes through the first abdicating groove; one end of the liquid cooling box, which is far away from the stator winding, is sealed through a liquid cooling box sealing plate, a second abdicating groove is arranged in the middle of the liquid cooling box sealing plate, and the central shaft penetrates through the second abdicating groove.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
the invention utilizes the advantages of small volume, large heat flux density, random bending and the like of the pulsating heat pipe to directly apply the nonmetal pulsating heat pipe to the interior of the motor, thereby overcoming the problem of difficult direct cooling of the interior of the motor. By arranging the pulsating heat pipe together with the winding, the winding is directly cooled. The condensation section of the pulsating heat pipe is fixed in the liquid cooling tank, the condensation section is cooled by cooling liquid, and meanwhile, a guide plate is arranged in the liquid cooling tank to enable the cooling liquid and the pulsating heat pipe to exchange heat more fully. The temperature of the stator assembly is reduced, the cooling efficiency of the motor is improved, and the volume of the motor is reduced.
Drawings
FIG. 1 is an exploded view of a pulsating heat pipe based motor in accordance with an embodiment of the present invention;
FIG. 2 is a side view of a pulsating heat pipe based motor in accordance with an embodiment of the present invention;
FIG. 3 is a schematic axial cross-sectional view of a pulsating heat pipe based motor in an embodiment of the present invention;
FIG. 4 is a schematic radial cross-sectional view of a liquid cooling tank of a pulsating heat pipe based motor in an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating an assembly of a pulsating heat pipe and a liquid cooling tank of a pulsating heat pipe-based motor according to an embodiment of the present invention.
Description of reference numerals:
1. pulsating heat pipes; 11. an evaporation section; 12. an adiabatic section; 13. a condensing section; 2. a stator winding; 21. an effective edge; 22. an end portion of the winding; 3. a stator core; 31. a stator slot; 4. a liquid cooling tank; 41. a sealing plate; 42. a baffle; 421. an outer baffle; 422. an inner baffle; 43. a hole of abdication; 44. a diversion trench; 45. a partition plate; 5. a housing; 51. a front end cover; 52. a rear end cap; 6. a liquid inlet pipe; 7. a liquid outlet pipe; 8. a central shaft;
Detailed Description
The invention is further described with reference to the following figures and detailed description.
Referring to fig. 1 to 5, the present invention provides a motor based on a pulsating heat pipe, including a stator winding 2, a stator core 3, and a central shaft 8, wherein the stator winding 2, the stator core 3, and the central shaft 8 are coaxially disposed; the stator core 3 is provided with a plurality of stator slots 31 for placing windings along the radial direction thereof; the heat pipe comprises a pulsating heat pipe 1, wherein the pulsating heat pipe 1 comprises a condensation section 13 and an evaporation section 11; in the radial direction of the stator core 3, the evaporation section 11 of the pulsating heat pipe 1 in the stator slot 31 is located between the bottom of the stator slot 31 and one effective side 21 of the stator winding 2.
Herein, "effective side" refers to a straight line portion of the stator winding embedded in the stator slot 31, and "end portion of the winding" refers to a portion of the stator winding disposed outside the stator slot 31 and connecting the two "effective sides".
As an alternative embodiment, the stator winding 2 is a single-layer distributed winding; the pulsating heat pipe 1 is separated from the bottom of the stator slot 31 by insulating paper.
Herein, "single-layer distributed winding" means that there is only one active side of a phase within each stator slot 31. By "double-layer distributed winding" is meant that two active sides of different phases are provided in each stator slot 31 and insulation is provided between the two active sides of different phases.
As another alternative, the stator winding 2 is a double-layer distributed winding, and the evaporation section of the pulsating heat pipe is arranged between the effective sides 21 of two different phases in the stator slot 31 in the radial direction of the stator core 3.
On this basis, in one embodiment, the pulsating heat pipe 1 in the stator slot 31 is only arranged between the active sides 21 of the two different phases in the radial direction of the stator core 3.
On this basis, in another embodiment, the pulsating heat pipe 1 in the stator slot 31 is arranged between the active edge 21 closest to the bottom of the stator slot 31 and the bottom of the stator slot 31, in addition to being arranged between the active edges 21 of the two different phases.
As another alternative, the ends of the stator winding 2 are bundled with the evaporator end 11 of the pulsating heat pipe 1.
Specifically, the evaporation section 11 of the pulsating heat pipe 1 passes through the end 22 of the winding, the effective side 21, and the end 22 of the winding in sequence. The pulsating heat pipe 1 may be bound and fastened together with the end 22 of the winding by an insulating rope.
Through the direct cooling of pulsating heat pipe 1 to stator winding 2 tip, can solve winding tip exposes in the air in the past, difficult cooling, the problem that the temperature rise is high.
As another alternative embodiment, the device further comprises a casing 5; the stator winding 2 and the stator core 3 are both arranged in the shell 5; one end of the shell 5 is connected with a liquid cooling box 4; the condensation section 13 of the pulsating heat pipe 1 is disposed in the liquid cooling tank 4 and is in direct contact with the cooling liquid in the liquid cooling tank 4.
In one embodiment, water is used as the cooling fluid.
In one embodiment, the end of the liquid cooling tank 4 close to the stator winding 2 is provided with a plurality of relief holes 43 for the pulsating heat pipe 1 to pass through.
In a specific embodiment, a heat insulation section 12 is further arranged between the evaporation section 11 and the condensation section 13 of the pulsating heat pipe 1; the heat insulation section 12 is a part of the pulsating heat pipe 1 from the part extending out of the stator winding 2 to the part penetrating through a yielding hole 43 at one end of the liquid cooling box 4 close to the stator winding 2; the heat insulation section 12 of the pulsating heat pipe 1 is fixedly connected with the abdicating hole 43 through insulating heat-conducting glue.
In one embodiment, the liquid cooling tank 4 includes an annular guiding groove 44 centered on the central axis 8, a partition plate 45 for partitioning the annular guiding groove 44 into one-way guiding grooves is disposed in the liquid cooling tank 4, and a liquid inlet and a liquid outlet of the liquid cooling tank 4 are disposed on two sides of the partition plate 45 respectively; the annular flow guide groove 44 is internally provided with an outer ring surface connected with the annular flow guide groove 44, an outer flow guide plate 421 not in contact with the inner ring surface, an inner ring surface connected with the annular flow guide groove 44 and an inner flow guide plate 422 not in contact with the outer ring surface in a staggered manner; the length directions of the outer baffle 421 and the inner baffle 422 are parallel to the central axis 8, and the width directions of the outer baffle 421 and the inner baffle 422 are arranged along the radial direction of the central axis 8.
In one embodiment, the partition 45 connects the inner and outer annular surfaces of the annular guide groove 44 and connects the front and rear end surfaces of the annular guide groove 44.
Since the partition plate 45 divides the annular flow guide groove into the one-way flow guide grooves, the cooling liquid can reach the liquid outlet only after the cooling liquid enters the annular flow guide groove 44 from the liquid inlet and winds around the annular flow guide groove 44 for one circle. And the flow guide plate 42 uniformly divides the cooling liquid to make the cooling liquid uniformly contact with the condensation section 13 of the pulsating heat pipe 1. So that the cooling liquid and the condensation section 13 of the pulsating heat pipe 1 can exchange heat more fully.
In one embodiment, the liquid inlet and the liquid outlet are arranged at the end of the liquid cooling tank 4 remote from the stator winding 2.
In one embodiment, a front cover 51 and a rear cover 52 are fixed to two ends of the housing 5; the liquid cooling box 4 is arranged at the front end of the casing 5, and the front end cover 51 is provided with a liquid inlet pipe 6 and a liquid outlet pipe 7. In another embodiment, the liquid cooling boxes 4 may be disposed at two ends of the casing 5.
The cooling liquid enters the liquid cooling box 4 through the liquid inlet pipe 6, exchanges heat with the condensation section 13 of the pulsating heat pipe 1, and then flows out through the liquid outlet pipe 7. The front cover 51 and the liquid cooling tank 4 are fixed to the housing 5 by bolts.
In one embodiment, one end of the liquid cooling tank 4 close to the stator winding 2 is provided with a first abdicating groove, and the central shaft 8 passes through the first abdicating groove; one end of the liquid cooling box 4, which is far away from the stator winding, is sealed through a liquid cooling box sealing plate 41, a second yielding groove is formed in the middle of the liquid cooling box sealing plate 41, and the central shaft 8 penetrates through the second yielding groove. The sealing plate 41 is provided with water holes 411 corresponding to the liquid inlet and the liquid outlet of the liquid cooling box.
When the motor is produced and assembled, as shown in fig. 5, the pulsating heat pipe 1 and the liquid cooling tank 4 are firstly processed and assembled into a whole through insulating heat-conducting glue. Then, when the wire is embedded, the pulsating heat pipe 1 is embedded into each stator slot 31 of the stator core 3 along with the effective edge 21. In specific implementation, the pulsating heat pipe 1 may be embedded first and then the effective edge 21 is embedded, or the pulsating heat pipe 1 may be placed in the middle of the effective edges 21 of different phases and embedded in the stator slot 31, and then the stator assembly is assembled in the casing 5.
When the motor works, the stator winding 2 and the stator core 3 exchange heat with the evaporation section 11 of the pulsating heat pipe 1, the liquid working medium in the pipe absorbs heat and is gasified to generate a bubble column, and the bubble column vibrates to the condensation section 13. The condensation section 13 of the pulsating heat pipe 1 exchanges heat with the cooling liquid, and the bubble column therein releases heat and becomes a liquid column. Working medium in the pulsating heat pipe 1 flows between the evaporation section 11 and the condensation section 13 in an oscillating mode, so that heat in the motor is taken out and finally taken away by cooling liquid. The pulsating heat pipe 1 has a certain temperature equalizing effect on the interior of the motor along the axial direction of the motor, and can reduce the thermal stress of part of components, thereby reducing the abrasion.
The invention provides a motor based on a pulsating heat pipe, which utilizes the advantages of small volume, large heat flux density, random bending and the like of the pulsating heat pipe 1 to directly apply the nonmetal pulsating heat pipe 1 to the interior of the motor, thereby overcoming the two problems of difficult direct cooling of the interior of the motor and difficult cooling of the end part 22 of a winding. By arranging the pulsating heat pipe 1 together with the stator winding 2, the stator winding 2 is directly cooled, in particular the ends 22 of the winding can be directly cooled. The pulsating heat pipe 1 is fixed in the liquid cooling tank 4 at the heat insulation section 12, the condensation section 13 is positioned in the liquid cooling tank 4 and is cooled by cooling liquid, and meanwhile, a guide plate 42 is arranged in the liquid cooling tank 4 to ensure that the cooling liquid and the pulsating heat pipe 1 exchange heat more fully. The thermal resistance between the stator winding 2 and the cooling liquid is reduced, the temperature of the stator component is reduced, the cooling efficiency of the motor is improved, and the volume of the motor is reduced.
The above description is only a specific embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention disclosed by the present invention, and all actions infringing the scope of the present invention are included in the present invention.
Claims (8)
1. A motor based on a pulsating heat pipe comprises a distributed stator winding, a stator core, a central shaft and a machine shell, wherein the stator winding, the stator core and the central shaft are coaxially arranged; the stator core is provided with a plurality of stator slots for placing windings; the heat pump is characterized by also comprising a pulsating heat pipe, wherein the pulsating heat pipe comprises a condensation section and an evaporation section; in the radial direction of the stator core, the evaporation section of the pulsating heat pipe in the stator slot is positioned between the bottom of the stator slot and one effective edge of the stator winding;
the stator winding and the stator iron core are arranged in the shell; one end of the shell is connected with a liquid cooling box; the condensation section of the pulsating heat pipe is arranged in the liquid cooling box and is directly contacted with cooling liquid in the liquid cooling box;
the liquid cooling box comprises an annular flow guide groove which is arranged by taking the central shaft as a center, a partition plate which partitions the annular flow guide groove into one-way flow guide grooves is arranged in the liquid cooling box, and a liquid inlet and a liquid outlet of the liquid cooling box are respectively arranged on two sides of the partition plate; outer guide plates connected with the outer ring surface of the annular guide groove and inner guide plates connected with the inner ring surface of the annular guide groove are arranged in the annular guide groove in a staggered manner; the length directions of the outer guide plate and the inner guide plate are parallel to the central shaft, and the width directions of the outer guide plate and the inner guide plate are arranged along the radial direction of the central shaft.
2. The pulsating heat pipe based electric machine of claim 1, wherein the stator winding is a single layer distributed winding; the pulsating heat pipe is separated from the bottom of the stator slot by insulating paper.
3. The pulsating heat pipe based motor of claim 1, wherein said stator winding is a double layer distributed winding; and an evaporation section of the pulsating heat pipe is arranged between the effective edges of two different phases in the stator slot in the radial direction of the stator core.
4. The pulsating heat pipe based motor of claim 3, wherein an evaporator section of the pulsating heat pipe is disposed radially of the stator between an active edge nearest the bottom of the stator slot and the bottom of the stator slot.
5. The pulsating heat pipe based motor of claim 1, wherein ends of said stator windings are bundled with an evaporator section of said pulsating heat pipe.
6. The pulsating heat pipe based motor as claimed in claim 1, wherein an end of the liquid cooling tank near the stator winding is provided with a plurality of relief holes for the pulsating heat pipe to pass through.
7. The pulsating heat pipe based motor as recited in claim 6, wherein a heat insulation section is further disposed between an evaporation section and a condensation section of the pulsating heat pipe; the heat insulation section is a part of the pulsating heat pipe extending out of the stator winding to a part of the pulsating heat pipe penetrating through the abdicating hole; and the heat insulation section of the pulsating heat pipe is fixedly connected with the abdicating hole through insulating heat-conducting glue.
8. The pulsating heat pipe based electric machine of claim 1, wherein an inlet port and an outlet port are provided at an end of said liquid cooling tank distal from a stator winding;
one end of the liquid cooling box, which is close to the stator winding, is provided with a first abdicating groove, and the central shaft penetrates through the first abdicating groove; one end, far away from the stator winding, of the liquid cooling box is sealed through a liquid cooling box sealing plate, a second yielding groove is formed in the middle of the liquid cooling box sealing plate, and the center shaft penetrates through the second yielding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010454820.3A CN112104167B (en) | 2020-05-26 | 2020-05-26 | Motor based on pulsating heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010454820.3A CN112104167B (en) | 2020-05-26 | 2020-05-26 | Motor based on pulsating heat pipe |
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| Publication Number | Publication Date |
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| CN112104167A CN112104167A (en) | 2020-12-18 |
| CN112104167B true CN112104167B (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010454820.3A Active CN112104167B (en) | 2020-05-26 | 2020-05-26 | Motor based on pulsating heat pipe |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112953051A (en) * | 2021-03-10 | 2021-06-11 | 中国人民解放军海军工程大学 | High-efficiency water-cooled motor stator |
| US11996760B2 (en) | 2021-11-05 | 2024-05-28 | Hamilton Sundstrand Corporation | Aircraft electric motor having a stator heat pipe cooling scheme |
| CN114785051B (en) * | 2022-06-20 | 2022-08-26 | 沈阳工业大学 | Heat pipe cooling structure of permanent magnet motor and motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102832726B (en) * | 2012-08-17 | 2014-11-26 | 中国科学院电工研究所 | Evaporative cooling system of hybrid motor stator |
| CN108964317A (en) * | 2018-07-04 | 2018-12-07 | 中国科学院电工研究所 | A kind of stator winding heat dissipation structure for unmanned plane driving motor |
| CN110798024B (en) * | 2019-11-28 | 2022-03-29 | 华南理工大学 | Vehicle motor enhanced cooling structure based on pulsating heat pipe |
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Application publication date: 20201218 Assignee: Xiamen Shituo Yuneng Technology Co.,Ltd. Assignor: XIAMEN TUNGSTEN Co.,Ltd. Contract record no.: X2023980037052 Denomination of invention: Electric motor based on pulsating heat pipe Granted publication date: 20220607 License type: Common License Record date: 20230703 |
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Application publication date: 20201218 Assignee: Xiamen Situo Medical Technology Co.,Ltd. Assignor: XIAMEN TUNGSTEN Co.,Ltd. Contract record no.: X2023980037962 Denomination of invention: Electric motor based on pulsating heat pipe Granted publication date: 20220607 License type: Common License Record date: 20230719 |
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Application publication date: 20201218 Assignee: XIAMEN WEIYOU INTELLIGENT TECHNOLOGY CO.,LTD. Assignor: XIAMEN TUNGSTEN Co.,Ltd. Contract record no.: X2023980038027 Denomination of invention: Electric motor based on pulsating heat pipe Granted publication date: 20220607 License type: Common License Record date: 20230720 |
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Application publication date: 20201218 Assignee: Xiamen Shituo Zhidong Technology Co.,Ltd. Assignor: XIAMEN TUNGSTEN Co.,Ltd. Contract record no.: X2023980038155 Denomination of invention: Electric motor based on pulsating heat pipe Granted publication date: 20220607 License type: Common License Record date: 20230724 Application publication date: 20201218 Assignee: Xiamen Situo Jicheng Technology Co.,Ltd. Assignor: XIAMEN TUNGSTEN Co.,Ltd. Contract record no.: X2023980038213 Denomination of invention: Electric motor based on pulsating heat pipe Granted publication date: 20220607 License type: Common License Record date: 20230725 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20201218 Assignee: Xiamen xiaw Intelligent Equipment Technology Co.,Ltd. Assignor: XIAMEN TUNGSTEN Co.,Ltd. Contract record no.: X2023980038553 Denomination of invention: Electric motor based on pulsating heat pipe Granted publication date: 20220607 License type: Common License Record date: 20230731 |