CN109391088A - Disc type electric machine and its radiator structure - Google Patents
Disc type electric machine and its radiator structure Download PDFInfo
- Publication number
- CN109391088A CN109391088A CN201811525242.7A CN201811525242A CN109391088A CN 109391088 A CN109391088 A CN 109391088A CN 201811525242 A CN201811525242 A CN 201811525242A CN 109391088 A CN109391088 A CN 109391088A
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- Prior art keywords
- electric machine
- disc type
- cooling
- type electric
- machine casing
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- 238000001816 cooling Methods 0.000 claims abstract description 100
- 238000004804 winding Methods 0.000 claims abstract description 33
- 239000007921 spray Substances 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 23
- 239000003129 oil well Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 238000001727 in vivo Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 84
- 238000010586 diagram Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention provides a kind of disc type electric machine radiator structure, including electric machine casing, the stator core and stator winding that are installed on electric machine casing inner face；Electric machine casing is built-in around its cooling oil duct circumferentially, and is connected to cooling oil duct and extend out to the atomizer of stator winding outer ring, and the inner ring bottom of electric machine casing is provided with collection and exports the oil trap that atomizer sprays cooling oil.Cooling oil duct is set in electric machine casing, atomizer is connected to cooling oil duct, atomizer sprays cooling oil to the surface of stator winding, it is directly cooling to stator winding and stator core, cooling oil falls on the bottom of electric machine casing by stator core and stator winding flowing, exports after oil trap is collected, by disc type electric machine in such a way that oil spout is directly cooling, without being potted carry out heat loss through conduction to disc type electric machine, the heat-sinking capability of disc type electric machine is improved.The present invention also provides a kind of disc type electric machines.
Description
Technical field
The present invention relates to technical field of motors, more specifically to a kind of disc type electric machine and its radiator structure.
Background technique
Disc type electric machine using axial magnetic field due to being designed, torque short compared to conventional radial magnetic field electric motor its axial dimension
Density is big, light-weight, high-efficient.Three kinds of structures that disc type electric machine generallys use: single rotor list stator structure, single rotor bimorph transducer
Structure, double rotor single stator structure.Stator winding can generate a large amount of heat to disc type electric machine at runtime, if heat cannot be by
It is carried in time and will cause the excessively high normal operation for influencing motor of motor temperature rise.Therefore efficient cooling design be motor just
The guarantee often run.
A kind of radiator structure of disc type electric machine in the prior art, heat dissipation design are mainly the design of heat dissipation pipeline, pass through by
The heat derives of stator winding take heat out of to electric machine casing, then by the coolant liquid in cooling oil duct.It is led simultaneously to improve
Hot property fills heat-conducting glue between stator core and shell and increases the capacity of heat transmission.The another kind of disc type electric machine dissipates in the prior art
Heat structure can efficiently solve disc type electric machine due to small in size using the force ventilated cooling scheme of external air blower,
The shortcomings that surface can not be radiated provides the anti-of motor so that disc type electric machine can be applied in totally enclosed occasion
Protect grade.
Existing disc type electric machine mostly uses greatly the indirect type of cooling, takes heat out of motor by cooling working-medium water, motor around
The heat that group issues passes to shell by iron core, and passing to water that the heat of shell passes through again in the cooling pipe of enclosure interior will be hot
Amount is taken out of.Encapsulation technology is used between heat dissipation effect electric machine casing and stator core to improve, and is filled out between iron core and shell
It fills heat-conducting glue and improves the capacity of heat transmission.The use of encapsulation technology increases the cost of motor, improves disc type electric machine business application
Difficulty.Currently, the temperature rise of motor is still higher using the radiation cooling method of indirect water-cooling, the business application of disc type electric machine is still
It is so poor.The disc type electric machine of external air blower, it is limited to the cooling capacity of disc type electric machine, influence the working performance of motor.
Therefore, the heat-sinking capability for how improving disc type electric machine, is a problem to be solved by those skilled in the art.
Summary of the invention
In view of this, the present invention provides a kind of disc type electric machine radiator structure, to improve the heat-sinking capability of disc type electric machine；This
Invention additionally provides a kind of disc type electric machine.
In order to achieve the above object, the invention provides the following technical scheme:
A kind of disc type electric machine radiator structure, including electric machine casing, the stator iron being installed on the electric machine casing inner face
Core and stator winding；
The electric machine casing is built-in around its cooling oil duct circumferentially, described in be connected to the cooling oil duct and extend out to
The atomizer of stator winding outer ring, the inner ring bottom of the electric machine casing, which is provided with collection and exports the atomizer, sprays cooling
The oil trap of oil.
Preferably, in above-mentioned disc type electric machine radiator structure, the cooling oil duct is opened in the outer end of the electric machine casing
Face offers the nozzle opening for being connected to the cooling oil duct on the electric machine casing, and the atomizer is installed in the nozzle opening.
Preferably, in above-mentioned disc type electric machine radiator structure, the electric machine casing includes shell outer ring plate and frame support in institute
The iron core mounting plate of outer ring plate inner ring is stated, the cooling oil duct is opened on the outer end face of the iron core mounting plate, the oil spout
Hole is opened in the thickness direction of the iron core mounting plate.
Preferably, in above-mentioned disc type electric machine radiator structure, the stator core bolt is installed on the electric machine casing,
Circumferential coiling of the stator winding around the stator core.
Preferably, in above-mentioned disc type electric machine radiator structure, the stator core includes circumferential around the electric machine casing
Arrangement it is multiple, the atomizer include around the electric machine casing circumferentially, and respectively with the stator core position pair
That answers is multiple.
Preferably, in above-mentioned disc type electric machine radiator structure, the atomizer includes along the width side of the stator winding
To spaced apart two sub- atomizers.
Preferably, in above-mentioned disc type electric machine radiator structure, the outer ring of the electric machine casing offers the connection cooling
The cooling oil-in of oil duct, with the cooling-oil outlet for being connected to the oil trap.
Preferably, in above-mentioned disc type electric machine radiator structure, the aperture of the cooling-oil outlet is greater than the cooling oil and enters
The aperture of mouth.
It preferably, further include the filling pump being connected to the cooling oil-in in above-mentioned disc type electric machine radiator structure, and
The oil well pump being connected to the cooling-oil outlet.
A kind of disc type electric machine, including electric machine casing and the stator core being installed in inside the electric machine casing, the motor
The radiator structure cooling to the stator core is provided in shell, the radiator structure is disc type described in any one as above
Motor radiating structure.
Disc type electric machine radiator structure provided by the invention, including electric machine casing are installed on electric machine casing inner face and determine
Sub- iron core and stator winding；Electric machine casing is built-in around its cooling oil duct circumferentially, and be connected to cooling oil duct and extend out to calmly
The inner ring bottom of the atomizer of sub- winding outer ring, electric machine casing is provided with collection and exports the oil-collecting that atomizer sprays cooling oil
Slot.Stator core is installed on electric machine casing, and stator winding is wound on stator core, and cooling oil duct is arranged in electric machine casing,
Atomizer is connected to cooling oil duct, and the jet of atomizer is extend out to the outer ring of stator winding, to stator core and stator
When winding is cooled down, cooling oil is flowed into cooling oil duct, and is ejected to by atomizer the surface of stator winding, to stator around
Group and stator core are directly cooling, and cooling oil is fallen on the bottom of electric machine casing by stator core and stator winding flowing, by
Oil trap is arranged in the bottom of electric machine casing, and the cooling oil sprayed through atomizer after collecting in oil trap by exporting, by disc type
Motor, without being potted carry out heat loss through conduction to disc type electric machine, improves disc type electric machine in such a way that oil spout is directly cooling
Heat-sinking capability.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the inner face structural schematic diagram of disc type electric machine cooling mechanism provided by the invention；
Fig. 2 is the outer end face structural schematic diagram of disc type electric machine radiator structure provided by the invention.
Specific embodiment
The invention discloses a kind of disc type electric machine radiator structures, improve the heat-sinking capability of disc type electric machine；The present invention also mentions
A kind of disc type electric machine is supplied.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
The embodiment of the present invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, Fig. 1 is the inner face structural schematic diagram of disc type electric machine cooling mechanism provided by the invention；Figure
2 be the outer end face structural schematic diagram of disc type electric machine radiator structure provided by the invention.
The present invention provides a kind of disc type electric machine radiator structures, including electric machine casing 1, are installed in 1 inner face of electric machine casing
On stator core 2 and stator winding 3；Electric machine casing 1 is built-in around its cooling oil duct 6 circumferentially, and is connected to cooling oil duct 6
And it is extend out to the atomizer 4 of 3 outer ring of stator winding, the inner ring bottom of electric machine casing 1 is provided with collection and exports the ejection of atomizer 4
The oil trap 5 of cooling oil.Stator core 2 is installed on electric machine casing 1, and stator winding 3 is wound on stator core 2, motor casing
Cooling oil duct 6 is set in body 1, and atomizer 4 is connected to cooling oil duct 6, and the jet of atomizer 4 is extend out to stator winding 3
Outer ring, when cooling down to stator core 2 and stator winding 3, cooling oil is flowed into cooling oil duct 6, and is sprayed by atomizer 4
It is directly cooling to stator winding 3 and stator core 2 out to the surface of stator winding 3, cooling oil by stator core 2 and stator around
3 flowing of group falls on the bottom of electric machine casing 1, by the way that oil trap 5 is arranged in the bottom of electric machine casing 1, sprays through atomizer 4 cold
But oil after collecting in oil trap 5 by exporting, by such a way that oil spout is directly cooling, being not necessarily to disc type electric machine to disc type electric machine
It is potted carry out heat loss through conduction, improves the heat-sinking capability of disc type electric machine.
In one specific embodiment of this case, cooling oil duct 6 is opened in the outer end face of electric machine casing 1, opens up on electric machine casing 1
There is the nozzle opening 7 of connection cooling oil duct 6, atomizer 4 is installed in nozzle opening 7.2 wound motor shell of disc type electric machine inner-stator iron core
Circumferentially, it is ring shaped oil passage that cooling oil duct 6 is around electric machine casing 1 to body 1, for the leakproofness for guaranteeing cooling oil duct, will be cooled down
Oil duct 6 is set to the outer end face of electric machine casing 1, by the way that nozzle opening 7 is arranged on electric machine casing 1, by the cooling in cooling oil duct 6
Oil is introduced into the inner face of electric machine casing 1, through on the spray to stator winding 3 of atomizer 4.
Preferably, electric machine casing 1 includes shell outer ring plate and frame support in the iron core mounting plate of outer ring plate inner ring, cooling oil duct
6 are opened on the outer end face of iron core mounting plate, and nozzle opening 7 is opened in the thickness direction of iron core mounting plate.Electric machine casing 1 is by shell
Outer ring plate is supported, and inner ring setting iron core mounting plate is set to iron core installation for being fixedly mounted with stator core 2, cooling oil duct 6
The outer end face of plate, nozzle opening 7 run through the thickness direction of iron core mounting plate, and atomizer 4 is installed in nozzle opening 7 and is located at electric machine casing 1
Inner face.In order to reduce the difficulty of processing of cooling oil duct 6, housing cover is arranged in the outer end face of electric machine casing 1, installs in iron core
On plate process cooling oil duct 6 after, be installed on electric machine casing 1 by housing cover, by iron core mounting plate, shell outer ring plate and
Housing cover surrounds cooling oil duct.
In one specific embodiment of this case, 2 bolt of stator core is installed on electric machine casing 1, and stator winding 3 is around stator
The circumferential coiling of iron core 2.Since stator core 2 is directly cooled down in such a way that cooling oil directly sprays, using stator iron
Core 2 is directly installed on iron core mounting plate by bolt and is fixed, and stator winding 3 is wound on stator core 2, passes through bolt
The fixed structure mode fixed to stator core reserves the installation space of atomizer 4 in 1 inner ring of electric machine casing, reduces disc type electricity
The manufacture difficulty of machine.
In one specific embodiment of this case, stator core 2 includes multiple, the atomizer 4 of wound motor shell 1 circumferentially
Circumferentially including wound motor shell 1, and it is corresponding with 2 position of stator core multiple respectively.Electronics iron core 2 in disc type electric machine
It is multiple around being disposed with, when atomizer is designed, the arragement construction of stator core 2 is adapted to, by 4 wound motor shell of atomizer
1 it is circumferentially distributed multiple, the stator core 2 of the cooling corresponding position of the cooling oil sprayed by atomizer 4 passes through the stream of cooling oil
It is dynamic, take away extra heat.Preferably, the quantity of atomizer 4 is corresponding with the quantity of stator core 2, each stator core 2
It is cooled the direct cooling of oil, improves cooling capacity.
Further, atomizer 4 includes the spaced apart two sub- atomizers of width direction along stator winding 3.Due to
Stator core 2 has certain width, and it is fixed that the arragement construction and cooling oil of single atomizer are difficult to ensure by the flowing of gravity
The axial direction of sub- iron core 2 can be cooled oily cooling, include two sub- atomizers by the setting of atomizer 4, and in stator core 2
Width direction arranged for interval further increases cooling oil to the heat-sinking capability of stator core.
In one specific embodiment of this case, the outer ring of electric machine casing 1 offers the cooling oil-in 8 of connection cooling oil duct,
With the cooling-oil outlet 9 for being connected to oil trap 5.Cooling oil-in 8 is connected to cooling oil duct 6, and cooling oil is filled into cooling oil duct 6
Afterwards, it is ejected on stator core 2 through atomizer 4, cooling oil drops into the oil trap 5 of 1 bottom of electric machine casing, and cooling-oil outlet connects
Oil trap 5 is passed to, the cooling oil in oil trap 5 is extracted out in time, the influence for avoiding cooling oil from working normally motor inside.
Preferably, the aperture of cooling-oil outlet 9 is greater than the aperture of cooling oil-in 8.In order to avoid due to motor oil inlet quantity
It causes 1 internal oil drainage of electric machine casing unsmooth with the imbalance of oil pump capacity, the aperture of cooling-oil outlet 9 on electric machine casing 1 is greater than
The aperture of cooling oil-in 8, specially the oil discharge passage aperture of cooling-oil outlet 9 are greater than the oil inlet passage of cooling oil-in 8
Aperture further increases the safety of electric machine casing so that the oil pumping ability of electric machine casing 1 is greater than the oil inlet ability of electric machine casing
Property.
Further include the filling pump being connected to cooling oil-in 8 in one specific embodiment of this case, and with cooling-oil outlet 9
The oil well pump of connection.It is cold by the distributive ability of cooling oil inside filling pump and oil well pump guarantee electric machine casing, and after ejection
Oily Extracting Ability guarantees cooling ability in disc type electric machine, and the temperature rise of disc type electric machine is controlled in reasonable range
It is interior, improve the application power of disc type electric machine.
Disc type electric machine radiator structure provided in this embodiment can be applied to single stator single-rotor motor, also can be applied to
Bimorph transducer single-rotor motor, rotor electronics more for multiple stators can also improve it by the arrangement to oil circuit on electric machine casing
Heat-sinking capability.
The disc type electric machine radiator structure provided in based on the above embodiment, the present invention also provides a kind of disc type electric machine, packets
The stator core for including electric machine casing and being installed in inside electric machine casing is provided with the heat dissipation cooling to stator core in electric machine casing
Structure, the radiator structure which is equipped with are the disc type electric machine radiator structure provided in above-described embodiment.
Since the disc type electric machine uses the disc type electric machine radiator structure of above-described embodiment, so the disc type electric machine is by disc type
Motor radiating structure bring beneficial effect please refers to above-described embodiment.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of disc type electric machine radiator structure, which is characterized in that including electric machine casing, be installed on the electric machine casing inner face
Stator core and stator winding；
The electric machine casing is built-in around its cooling oil duct circumferentially, and is connected to the cooling oil duct and extend out to the stator
The atomizer of winding outer ring, the inner ring bottom of the electric machine casing, which is provided with collection and exports the atomizer, sprays cooling oil
Oil trap.
2. disc type electric machine radiator structure according to claim 1, which is characterized in that the cooling oil duct is opened in the electricity
The outer end face of casing body offers the nozzle opening for being connected to the cooling oil duct on the electric machine casing, and the atomizer is installed in
In the nozzle opening.
3. disc type electric machine radiator structure according to claim 2, which is characterized in that the electric machine casing includes shell outer ring
In the iron core mounting plate of the outer ring plate inner ring, the cooling oil duct is opened in the outer end face of the iron core mounting plate for plate and frame support
On, the nozzle opening is opened in the thickness direction of the iron core mounting plate.
4. disc type electric machine radiator structure according to claim 1, which is characterized in that the stator core bolt is installed in institute
It states on electric machine casing, circumferential coiling of the stator winding around the stator core.
5. disc type electric machine radiator structure according to claim 1, which is characterized in that the stator core includes around described
Electric machine casing circumferentially multiple, the atomizer include around the electric machine casing circumferentially, and respectively with it is described fixed
Sub- plunger position is corresponding multiple.
6. disc type electric machine radiator structure according to claim 5, which is characterized in that the atomizer includes along the stator
The spaced apart two sub- atomizers of the width direction of winding.
7. disc type electric machine radiator structure according to claim 1, which is characterized in that the outer ring of the electric machine casing offers
It is connected to the cooling oil-in of the cooling oil duct, with the cooling-oil outlet for being connected to the oil trap.
8. disc type electric machine radiator structure according to claim 7, which is characterized in that the aperture of the cooling-oil outlet is greater than
The aperture of the cooling oil-in.
9. disc type electric machine radiator structure according to claim 7, which is characterized in that further include connecting with the cooling oil-in
Logical filling pump, and the oil well pump being connected to the cooling-oil outlet.
10. a kind of disc type electric machine, including electric machine casing and the stator core being installed in inside the electric machine casing, the motor casing
It is provided with the radiator structure cooling to the stator core in vivo, which is characterized in that the radiator structure is such as claim 1-9
Any one of described in disc type electric machine radiator structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811525242.7A CN109391088A (en) | 2018-12-13 | 2018-12-13 | Disc type electric machine and its radiator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811525242.7A CN109391088A (en) | 2018-12-13 | 2018-12-13 | Disc type electric machine and its radiator structure |
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| Publication Number | Publication Date |
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| CN109391088A true CN109391088A (en) | 2019-02-26 |
Family
ID=65429382
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811525242.7A Pending CN109391088A (en) | 2018-12-13 | 2018-12-13 | Disc type electric machine and its radiator structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109873537A (en) * | 2019-04-18 | 2019-06-11 | 上海盘毂动力科技股份有限公司 | A kind of axial direction electric machine stator and preparation method thereof |
| CN113783323A (en) * | 2021-09-15 | 2021-12-10 | 臻驱科技（上海）有限公司 | Motor stator cooling structure |
| WO2021248977A1 (en) * | 2020-06-09 | 2021-12-16 | 天津松正汽车部件有限公司 | Axial-cooled motor stator having concentrated winding, and motor |
| WO2024082879A1 (en) * | 2022-10-21 | 2024-04-25 | 上海盘毂动力科技股份有限公司 | Axial flux motor, stator cooling structure, and manufacturing method |
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| JP2005348589A (en) * | 2004-06-07 | 2005-12-15 | Nissan Motor Co Ltd | Cooling structure of axial gap electric motor |
| US20100052441A1 (en) * | 2008-08-28 | 2010-03-04 | Aisin Seiki Kabushiki Kaisha | Oil Cooling System for Motor |
| CN103532307A (en) * | 2013-10-21 | 2014-01-22 | 南车株洲电力机车研究所有限公司 | Permanent magnet synchronous traction motor and oil cooling device thereof |
| CN209001745U (en) * | 2018-12-13 | 2019-06-18 | 上海盘毂动力科技股份有限公司 | Disc type electric machine and its radiator structure |
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2018
- 2018-12-13 CN CN201811525242.7A patent/CN109391088A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005348589A (en) * | 2004-06-07 | 2005-12-15 | Nissan Motor Co Ltd | Cooling structure of axial gap electric motor |
| US20100052441A1 (en) * | 2008-08-28 | 2010-03-04 | Aisin Seiki Kabushiki Kaisha | Oil Cooling System for Motor |
| CN103532307A (en) * | 2013-10-21 | 2014-01-22 | 南车株洲电力机车研究所有限公司 | Permanent magnet synchronous traction motor and oil cooling device thereof |
| CN209001745U (en) * | 2018-12-13 | 2019-06-18 | 上海盘毂动力科技股份有限公司 | Disc type electric machine and its radiator structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109873537A (en) * | 2019-04-18 | 2019-06-11 | 上海盘毂动力科技股份有限公司 | A kind of axial direction electric machine stator and preparation method thereof |
| WO2021248977A1 (en) * | 2020-06-09 | 2021-12-16 | 天津松正汽车部件有限公司 | Axial-cooled motor stator having concentrated winding, and motor |
| CN113783323A (en) * | 2021-09-15 | 2021-12-10 | 臻驱科技（上海）有限公司 | Motor stator cooling structure |
| WO2024082879A1 (en) * | 2022-10-21 | 2024-04-25 | 上海盘毂动力科技股份有限公司 | Axial flux motor, stator cooling structure, and manufacturing method |
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