CN111900837B - Device and method for directly cooling end winding of flat permanent magnet motor - Google Patents
Device and method for directly cooling end winding of flat permanent magnet motor Download PDFInfo
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- CN111900837B CN111900837B CN202010365652.0A CN202010365652A CN111900837B CN 111900837 B CN111900837 B CN 111900837B CN 202010365652 A CN202010365652 A CN 202010365652A CN 111900837 B CN111900837 B CN 111900837B
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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
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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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
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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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Abstract
The invention discloses a device and a method for directly cooling a flat permanent magnet motor end winding. The device comprises a water-cooled machine shell, a stator core, a heat conduction pipe, an armature winding and an end heat conduction ring. The method comprises the following steps: firstly, processing an end heat conduction ring, and arranging a plurality of mounting holes along the circumferential direction of the end heat conduction ring; then embedding an armature winding on the stator core through tooling, reserving jacks with the same number as the heat conducting rings at the end part of the armature winding along the circumferential direction at the end part of the armature winding, wherein the diameters of the jacks are matched with the outer diameter of the heat conducting pipes; then, the end heat-conducting ring is arranged on the stator core and the outer ring of the end part of the armature winding, the jacks on the end heat-conducting ring are arranged corresponding to the jacks on the end part of the armature winding, and the heat-conducting pipes are inserted into the jacks on the end part heat-conducting ring and the end part of the armature winding from the outer ring; and finally, placing the assembled stator hot sleeve into a water-cooled machine shell. The invention improves the heat dispersion of the end part of the motor, improves the current density of the motor winding and enhances the power density of the motor.
Description
Technical Field
The invention relates to the technical field of permanent magnet motors, in particular to a device and a method for directly cooling a flat permanent magnet motor end winding.
Background
Compared with the traditional asynchronous motor and the electrically excited synchronous motor, the permanent magnet motor has the remarkable advantages of high power density, high efficiency and the like, and has important application value and wide application prospect in the occasions of a new energy electric vehicle driving and generating system, a wind power generating system and the like. The cooling and heat dissipation of the permanent magnet motor directly determine the current density of a winding in the motor, the heat dissipation capacity of the motor is improved, and the method is the most direct method for improving the power density of the motor. The permanent magnet motor is generally designed as an inner closed system, and is usually designed in a fully closed structure, and the heat dissipation mode of the permanent magnet motor mainly comprises a shell air cooling mode, a shell liquid cooling mode, a motor inner oil cooling mode and the like. The best heat dissipation mode is the click internal oil cooling modeThe motor power can be greatly improved, but the structure design of the oil passage in the motor is complex, the reliability is poor, and the oil-cooled motor is also a short plate for use and maintenance. At present, the main heat dissipation mode of the high-power-density permanent magnet motor is still a water cooling mode, however, the winding current density of the water-cooled permanent magnet motor in long-term stable operation generally cannot exceed 10A/mm to the maximum 2 。
In particular applications, such as hub drives, turbine generators, etc., where the aspect ratio of the motor is critical, it is generally desirable that the motor have a large outer diameter and a small axial length. Because the water channel is arranged on the cooling shell of the water-cooled motor, heat generated by the winding and the iron core on the motor stator is in contact with the inner wall of the shell through the outer circle of the stator iron core for heat dissipation, the motor is flat, the contact surface between the stator and the shell is small, and the heat dissipation capability is limited to a certain extent. In addition, for the flat permanent magnet motor, the ratio of the winding end is large, the end winding and the air exposed in the motor are gathered, the heat dissipation of the loss of the winding end becomes a main problem, and the improvement of the motor power is directly limited. In order to solve the problem, the invention patent CN 107659018A discloses a detachable heat pipe cooling structure for enhancing cooling of the end of the motor, which is installed on two sides of the end of the motor and used for cooling the end winding, the end air and the rotor at the same time; however, the heat pipe in the patent adopts a bent structure, the structural complexity is increased, and the heat pipe surrounds the outer ring of the end winding, so that the contact surface is limited, and the heat dissipation capability of the heat pipe is difficult to be fully exerted. The invention patent CN 109428422 a discloses a cooling device and a cooling system for a motor winding end, wherein a cooling pipeline is arranged at the end of the cooling device, the cooling pipeline is directly contacted with the winding end, and a cooling medium flows in the cooling pipeline to cool the stator winding end; similarly, the cooling structure is complex, the design, processing and manufacturing of the cooling pipeline are difficult, and the heat dissipation capacity needs to be further improved. The motor cooling system disclosed in patent CN 109314444 a can achieve oil cooling at the end, but its structure is complicated. To its draw ratio little characteristics of in-wheel motor, patent CN 108270301A discloses a stator structure and motor with winding tip cooling structure, adopts stator tip embedment sealed, forms cooling circuit, and its essence is an oil cooling mode, and the cooling effect is better, but canned type and structural reliability need further verification. Patent CN 108964318A discloses a composite encapsulation cooling structure for a motor stator winding, wherein a heat pipe is arranged between the end of the stator winding and a casing, and the heat pipe is of a special-shaped structure; the heat absorption end of the heat pipe is in close contact with the outer ring of the winding end, the cooling end of the heat pipe is in close contact with the inner wall of the shell, a cooling water channel is arranged in the shell at the contact part, and the hollow cylinder region from the winding end of the motor to the inner wall of the shell is encapsulated by insulating heat-conducting encapsulating glue to form a composite encapsulating and cooling structure.
From the prior published patent documents, the cooling of the motor end windings has great technical progress and advancement, however, whether heat pipes or end potting or end sealing oil cooling is utilized, the overall structure is complex, the production cost is relatively high, the failure rate is relatively high, the heat dissipation capability needs to be further improved, and the efficient winding cooling scheme for the flat permanent magnet motor has great technical defects.
Disclosure of Invention
The invention aims to provide a device and a method for cooling a flat permanent magnet motor end winding, which have the advantages of simple structure, easy realization and strong heat dissipation capability, and are low in early-stage processing and manufacturing difficulty, low in later-stage maintenance cost and strong in applicability.
The technical solution for realizing the purpose of the invention is as follows: a flat permanent magnet motor end winding direct cooling device comprises a water-cooling machine shell, a stator core, a heat conduction pipe, an armature winding and an end heat conduction ring;
the stator core is arranged in the inner cavity of the water-cooling machine shell, and an armature winding is arranged outside the stator core; a cooling water channel is arranged in the water-cooling machine shell and covers the end parts of the stator iron core and the armature winding in the axial direction; a stator core wound with an armature winding is arranged in the inner cavity of the water-cooled machine shell, an end heat conduction ring is arranged in a hollow cylindrical gap area between the end parts of the stator core and the armature winding and the water-cooled machine shell, and the end heat conduction ring is tightly contacted with the water-cooled machine shell and the armature winding; the end part heat conduction ring is provided with a plurality of holes along the circumferential direction, the cooling end of the heat conduction pipe is assembled on the circumferential hole of the end part heat conduction ring, and the outer wall of the end part heat conduction ring is tightly contacted and attached with the water cooling machine shell; the heat conduction pipe radially passes through the round hole of the end heat conduction ring along the circumferential direction and then enters the armature winding.
Furthermore, the axial length of the end part heat conduction ring is the same as the lengths of the stator core and the end part of the armature winding, and the inner wall of the end part heat conduction ring is tightly contacted with the armature winding, so that the armature winding radiates heat through the end part heat conduction ring; and insulating paper is wrapped between the end heat-conducting ring and the ends of the stator core and the armature winding to ensure the insulation between the stator core and the armature winding.
Furthermore, a cooling water channel is arranged at the position, corresponding to the contact position of the end heat conduction ring and the water cooling machine shell, and is used for heat dissipation of the water cooling machine shell to the inside of the stator core.
Further, the surface of the heat conduction pipe is subjected to passivation treatment, insulating paint spraying or epoxy resin coating treatment.
Furthermore, an annular water channel and a cooling liquid inlet and outlet are arranged in the end heat conduction ring, and the annular water channel avoids the heat conduction pipe jacks; the inlet and the outlet of the cooling liquid are connected in series with a cooling water channel on the water-cooling machine shell.
A method for directly cooling a flat permanent magnet motor end winding comprises the following steps:
step 1, processing an end heat conduction ring, arranging a plurality of mounting holes along the circumferential direction of the end heat conduction ring, wherein the hole diameter is matched with the outer diameter of a heat conduction pipe;
and 4, placing the assembled stator hot sleeve into a water-cooled machine shell.
Compared with the prior art, the invention has the remarkable advantages that: (1) the end winding is directly contacted with the heat dissipation part, so that the heat dissipation problem of the end winding of the closed motor is solved; (2) the heat pipe or the high heat conduction pipe is adopted as the cooling structure main body, the characteristic of high heat transfer efficiency of the heat pipe is fully utilized, the defect of small air heat conduction coefficient at the end part is overcome, and the heat pipe or the high heat conduction pipe is of a straight rod structure, does not need bending special-shaped treatment and is easy to process; (3) the end part of the winding is additionally provided with the end part heat-conducting ring which is tightly contacted with the winding, so that the heat-radiating capacity of the motor is improved, and the whole heat-radiating scheme has no additional structural design needing sealing, so that the reliability is high, and the maintenance is easy; (4) the cooling structure is designed at the end part, the size of the motor does not need to be additionally increased, the cooling structure is also suitable for the formed motor, and the power density is improved.
Drawings
Fig. 1 is a schematic structural diagram of a direct cooling device for an end winding of a flat permanent magnet motor according to the present invention.
Fig. 2 is a schematic diagram of a heat pipe employed in an embodiment of the present invention.
Fig. 3 is a schematic structural view of an integrated structure of an end heat conduction ring and a heat conduction pipe in an embodiment of the present invention, in which (a) is a front view and (b) is a side view.
Fig. 4 is a schematic structural diagram of a stator and end heat conduction integrated structure in an embodiment of the invention.
Fig. 5 is an assembly exploded view of a winding head cooling structure of a flat fractional-slot concentrated winding permanent magnet motor in an embodiment of the invention.
Fig. 6 is an assembly structure schematic diagram of a winding head cooling structure of a flat fractional-slot concentrated winding permanent magnet motor in an embodiment of the present invention, where (a) is a front view, and (b) is a side view.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
Referring to fig. 1, the direct cooling device for the end winding of the flat permanent magnet motor according to the present invention includes a water-cooled housing 1, a stator core 2, a heat pipe 3, an armature winding 4, and an end heat-conducting ring 5;
the stator core 2 is arranged in the inner cavity of the water-cooled machine shell 1, and an armature winding 4 is arranged outside the stator core 2; a cooling water channel 1-1 is arranged in the water-cooling machine shell 1, and the cooling water channel 1-1 covers the end parts of the stator iron core 2 and the armature winding 4 in the axial direction; the stator core 2 wound with the armature winding 4 is arranged in the inner cavity of the water-cooled machine shell 1, the end part heat conduction ring 5 is arranged in the hollow cylinder gap area between the end parts of the stator core 2 and the armature winding 4 and the water-cooled machine shell 1, and the end part heat conduction ring 5 is tightly contacted with the water-cooled machine shell 1 and the armature winding 4; the end part heat conduction ring 5 is provided with a plurality of holes along the circumferential direction, the cooling end of the heat conduction pipe 3 is assembled on the circumferential hole of the end part heat conduction ring 5, and the outer wall of the end part heat conduction ring 5 is tightly contacted and attached with the water cooling machine shell 1 so as to reduce the thermal resistance and improve the heat transfer efficiency; the heat conduction pipe 3 radially passes through the circular hole of the end heat conduction ring 5 along the circumferential direction and enters the armature winding 4.
Further, the axial length of the end heat conduction ring 5 is the same as the length of the stator core 2 and the end of the armature winding 4, and the inner wall of the end heat conduction ring 5 is in close contact with the armature winding 4, so that the armature winding 4 radiates heat through the end heat conduction ring 5; and the end heat-conducting ring 5 and the ends of the stator core 2 and the armature winding 4 are wrapped by insulating paper 6 to ensure the safety of the insulation between the stator core 2 and the armature winding 4.
Furthermore, a cooling water channel is arranged at the corresponding position where the end part heat conduction ring 5 is contacted with the water cooling machine shell 1, so that the heat dissipation capacity of the water cooling machine shell 1 to the interior of the stator core 2 is improved.
Further, the surface of the heat conduction pipe 3 is passivated, insulated and painted or coated with epoxy resin, so that the insulation resistance between the heat conduction pipe 3 and the armature winding 4 is improved.
Furthermore, an annular water channel and a cooling liquid inlet and outlet are arranged inside the end heat conduction ring 5, and the annular water channel avoids the jacks of the heat conduction pipes 3; the inlet and the outlet of the cooling liquid are connected with a cooling water channel 1-1 on the water-cooling machine shell 1 in series, so that high-efficiency cooling is realized.
A direct cooling method for a flat permanent magnet motor end winding comprises the following steps:
step 1, processing an end heat conduction ring 5, and arranging a plurality of mounting holes along the circumferential direction of the end heat conduction ring 5, wherein the hole diameter of the mounting holes is matched with the outer diameter of a heat conduction pipe 3;
and 4, placing the assembled stator hot sleeve into the water-cooled machine shell 1.
Example 1
The heat conducting pipe 3 adopted in this embodiment is a phase-change heat pipe with high thermal conductivity, and the basic heat dissipation principle and structure of the phase-change heat pipe are shown in fig. 2.
Fig. 3 shows an assembly of the end heat conduction ring 5 and the heat conduction pipe 3 in this embodiment, the end heat conduction ring 5 is provided with 16 holes along the circumferential direction, 16 heat conduction pipes 3 are installed, fig. 3 (a) is a front view of an integrated structure of the end heat conduction ring 5 and the heat conduction pipe 3 in this embodiment, and fig. 3 (b) is a side view of the integrated structure of the end heat conduction ring 5 and the heat conduction pipe 3 in this embodiment.
The outer wall of the end heat conduction ring 5 is tightly contacted and attached with the water-cooling machine shell 1 so as to reduce thermal resistance and improve heat transfer efficiency. The heat conduction pipe 3 radially passes through the round hole of the end heat conduction ring 5 along the circumferential direction and then enters the winding end. In order to realize the close contact between the heat absorbing end of the heat conducting pipe 3 and the winding end, a hole for installing the heat conducting pipe 3 is reserved at the winding end in the winding inserting process.
In the embodiment of the present invention, the stator core 2 is an integer distributed winding structure, as shown in fig. 4, the end heat conduction rings 5 are installed on the winding ends of the stator core 2, and the end heat conduction rings 5 correspond to the holes reserved in the end windings one by one, so that the heat conduction pipes 3 are inserted.
Further, the axial length of the heat conduction ring 5 is consistent with the length of the winding end, and the inner wall of the end heat conduction ring 5 is tightly contacted with the winding end so as to enhance the heat dissipation effect of the winding through the end heat conduction ring 5; and insulating paper 6 is wrapped between the end heat-conducting ring 5 and the winding end to ensure the insulation safety of the stator winding.
Furthermore, a stator case water channel 1-1 is arranged at the corresponding position where the heat conducting ring 5 is contacted with the stator case 1, so that the heat dissipation capability of the stator case 1 on the stator iron core 2 is ensured.
Furthermore, the surface of the heat conduction pipe 3 is passivated, insulated and painted or coated with epoxy resin, so that the insulation resistance between the heat conduction pipe 3 and the winding is improved.
As a specific example, the end heat conduction ring 5 is internally provided with an annular water channel and a coolant inlet/outlet, and the annular water channel avoids the position of the insertion hole of the heat conduction pipe 3; the inlet and the outlet of the cooling liquid are connected with the stator shell water channel 1-1 in series, so that high-efficiency cooling is realized.
Fig. 5 is an assembly explosion diagram of the flat fractional-slot concentrated winding permanent magnet motor winding end cooling structure according to the embodiment of the invention after assembly.
Fig. 6 (a) is a front view of an assembly body after the winding end cooling structure of the flat fractional-slot concentrated winding permanent magnet motor according to the embodiment of the invention is assembled.
Fig. 6 (b) shows a side view of the assembly body after the winding end cooling structure of the flat fractional-slot concentrated winding permanent magnet motor according to the embodiment of the present invention is assembled.
The main principle of the end heat dissipation of the present embodiment is described as follows:
the heat conduction pipe 3 is inserted into the winding end part of the stator core 2, the evaporation end enters the winding end part, the condensation end is connected with the end part heat conduction ring 5, a large amount of joule heat is generated after the winding end part is electrified, because the phase change of the working medium in the heat conduction pipe 3 is realized, a large amount of heat energy absorbed by the evaporation end enters the condensation end, the condensation end of the heat conduction pipe 3 is in close contact with the end part heat conduction ring 5, the excellent heat transfer effect is realized, a large amount of heat can be transferred to the end part heat conduction ring 5, the outer ring of the end part heat conduction ring 5 is in contact with the stator casing 1 through the insulating paper 6, and the heat energy is effectively transferred into the water of the casing cooling water channel 1-1, so that the heat energy is taken away.
The end winding is directly contacted with the heat dissipation part, so that the heat dissipation problem of the end winding of the closed motor is solved; the heat pipe or the high heat conduction pipe is adopted as the cooling structure main body, the characteristic of high heat transfer efficiency of the heat pipe is fully utilized, the defect of small air heat conduction coefficient at the end part is overcome, and the heat pipe or the high heat conduction pipe is of a straight rod structure, does not need bending special-shaped treatment and is easy to process; the end part of the winding is additionally provided with the end part heat-conducting ring which is tightly contacted with the winding, so that the heat-radiating capacity of the motor is improved, and the whole heat-radiating scheme has no additional structural design needing sealing, so that the reliability is high, and the maintenance is easy; the cooling structure is designed at the end part, the size of the motor does not need to be additionally increased, the cooling structure is also suitable for the formed motor, and the power density is improved.
Claims (5)
1. A flat permanent magnet motor end winding direct cooling device is characterized by comprising a water-cooling machine shell (1), a stator core (2), a heat conduction pipe (3), an armature winding (4) and an end heat conduction ring (5);
the stator iron core (2) is arranged in the inner cavity of the water-cooling machine shell (1), and an armature winding (4) is arranged outside the stator iron core (2); a cooling water channel (1-1) is arranged in the water-cooling machine shell (1), and the cooling water channel (1-1) covers the end parts of the stator core (2) and the armature winding (4) in the axial direction; a stator iron core (2) wound with an armature winding (4) is arranged in an inner cavity of a water-cooling machine shell (1), an end heat-conducting ring (5) is arranged in a hollow cylindrical gap area between the end parts of the stator iron core (2) and the armature winding (4) and the water-cooling machine shell (1), and the end heat-conducting ring (5) is in close contact with the water-cooling machine shell (1) and the armature winding (4); the end part heat conduction ring (5) is provided with a plurality of holes along the circumferential direction, the cooling end of the heat conduction pipe (3) is assembled on the circumferential hole of the end part heat conduction ring (5), and the outer wall of the end part heat conduction ring (5) is tightly contacted and attached with the water cooling machine shell (1); the heat conduction pipe (3) radially penetrates through a round hole of the end heat conduction ring (5) along the circumferential direction and then enters the armature winding (4);
an annular water channel and a cooling liquid inlet and outlet are arranged in the end heat conduction ring (5), and the annular water channel avoids the jacks of the heat conduction pipes (3); the inlet and the outlet of the cooling liquid are connected in series with a cooling water channel (1-1) on the water-cooling machine shell (1).
2. The end-winding direct cooling device of the flat permanent magnet motor according to claim 1, wherein the axial length of the end heat-conducting ring (5) is the same as the length of the ends of the stator core (2) and the armature winding (4), and the inner wall of the end heat-conducting ring (5) is in close contact with the armature winding (4) to enable the armature winding (4) to dissipate heat through the end heat-conducting ring (5); and insulating paper (6) is wrapped between the end heat-conducting ring (5) and the ends of the stator core (2) and the armature winding (4) to ensure the insulation between the stator core (2) and the armature winding (4).
3. The direct cooling device for the end winding of the flat permanent magnet motor according to claim 1, wherein a cooling water channel is arranged at a corresponding position where the end heat conduction ring (5) is in contact with the water-cooled machine shell (1) and is used for heat dissipation of the water-cooled machine shell (1) to the inside of the stator core (2).
4. The direct cooling device for the end winding of the flat permanent magnet motor according to claim 1, wherein the surface of the heat conducting pipe (3) is passivated, insulated and painted, or coated with epoxy resin.
5. A method for directly cooling the end winding of a flat permanent magnet motor, which is based on the device for directly cooling the end winding of the flat permanent magnet motor in claim 1, and comprises the following steps:
step 1, processing an end heat conduction ring (5), arranging a plurality of mounting holes along the circumferential direction of the end heat conduction ring (5), wherein the hole diameter of the mounting holes is matched with the outer diameter of a heat conduction pipe (3);
step 2, embedding an armature winding (4) on the stator core (2) through a tool, reserving jacks with the same number as that of the heat-conducting rings (5) at the end parts of the armature winding (4) along the circumferential direction, wherein the diameters of the jacks are matched with the outer diameter of the heat-conducting pipes (3);
step 3, mounting the end heat-conducting ring (5) on the outer rings of the ends of the stator core (2) and the armature winding (4), wherein the jack on the end heat-conducting ring (5) is arranged corresponding to the jack on the end of the armature winding (4), so that the heat-conducting pipe (3) is inserted into the jacks on the ends of the end heat-conducting ring (5) and the armature winding (4);
and 4, placing the assembled stator hot sleeve into the water-cooled machine shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010365652.0A CN111900837B (en) | 2020-04-30 | 2020-04-30 | Device and method for directly cooling end winding of flat permanent magnet motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010365652.0A CN111900837B (en) | 2020-04-30 | 2020-04-30 | Device and method for directly cooling end winding of flat permanent magnet motor |
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| CN111900837A CN111900837A (en) | 2020-11-06 |
| CN111900837B true CN111900837B (en) | 2022-09-06 |
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| CN202010365652.0A Active CN111900837B (en) | 2020-04-30 | 2020-04-30 | Device and method for directly cooling end winding of flat permanent magnet motor |
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| CN112910183B (en) * | 2021-01-20 | 2022-03-25 | 南京理工大学 | Axial magnetic field motor stator assembly indirect cooling structure and assembling method thereof |
| CN116111748B (en) * | 2023-04-10 | 2024-02-13 | 湖南大学 | Reinforced synchronous heat dissipation stator structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882850A (en) * | 2010-08-17 | 2010-11-10 | 哈尔滨工业大学 | Permanent magnet synchronous motor with high-power density |
| CN106329808A (en) * | 2016-09-29 | 2017-01-11 | 华南理工大学 | Heat pipe type winding enhanced heat motor |
| CN106411084A (en) * | 2016-10-09 | 2017-02-15 | 中国人民解放军海军工程大学 | High power mixed excitation motor with novel water-cooling structure |
| CN108964318A (en) * | 2018-07-04 | 2018-12-07 | 中国科学院电工研究所 | A kind of compound encapsulating cooling structure of motor stator winding |
| CN109861441A (en) * | 2019-03-14 | 2019-06-07 | 江苏迈吉易威电动科技有限公司 | A kind of flat structure motor with high efficiency oil-water heat exchange cooling system |
-
2020
- 2020-04-30 CN CN202010365652.0A patent/CN111900837B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882850A (en) * | 2010-08-17 | 2010-11-10 | 哈尔滨工业大学 | Permanent magnet synchronous motor with high-power density |
| CN106329808A (en) * | 2016-09-29 | 2017-01-11 | 华南理工大学 | Heat pipe type winding enhanced heat motor |
| CN106411084A (en) * | 2016-10-09 | 2017-02-15 | 中国人民解放军海军工程大学 | High power mixed excitation motor with novel water-cooling structure |
| CN108964318A (en) * | 2018-07-04 | 2018-12-07 | 中国科学院电工研究所 | A kind of compound encapsulating cooling structure of motor stator winding |
| CN109861441A (en) * | 2019-03-14 | 2019-06-07 | 江苏迈吉易威电动科技有限公司 | A kind of flat structure motor with high efficiency oil-water heat exchange cooling system |
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| CN111900837A (en) | 2020-11-06 |
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