CN106160277A - A kind of novel automobile power motor stator structure and cooling system thereof - Google Patents
A kind of novel automobile power motor stator structure and cooling system thereof Download PDFInfo
- Publication number
- CN106160277A CN106160277A CN201610555830.XA CN201610555830A CN106160277A CN 106160277 A CN106160277 A CN 106160277A CN 201610555830 A CN201610555830 A CN 201610555830A CN 106160277 A CN106160277 A CN 106160277A
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- mozzle
- oil
- assembly
- motor
- stator core
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Classifications
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- 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
- 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
-
- 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 invention provides a kind of Motor Stator Assembly structure and the cooling system of described field frame assembly, its field frame assembly mainly includes mozzle assembly (3), stator core (7), winding (8)；Its cooling system mainly includes oil-in (1), mozzle assembly (3), oil-out (10), Fuel Tanking Unit (12), defecator (13) and cooling oil heat abstractor (14), mozzle assembly (3) is assemblied in the yoke portion through hole of stator core (7), and field frame assembly is by ensureing location coordinating between mozzle assembly (3) with both sides end cap (4,11)；The type of cooling of cooling system is the cold mode of oil directly spraying winding (8)；In the inventive solutions, both achieved the efficient cooling of power motor system, and ensure that effective radial dimension of motor the most substantially, improve power density and the torque density of motor；While ensureing the output of motor high-performance, in turn ensure that the processing technology of stator punching.
Description
Technical field
The present invention relates to a kind of Motor Stator Assembly structure and the cooling system of described stator, belong to automobile motor neck
Territory, particularly to field frame assembly structure and the oil cooled system system thereof of a kind of used in new energy vehicles power motor.
Background technology
Become today of China Automobile Industry theme in energy-conservation and environmental protection, new-energy automobile has become as automobile vendor of various countries
The object of primary study, power motor is also suggested the highest requirement as its main power source.
Power motor, while providing power for new-energy automobile the most efficiently, creates the most therewith and much asks
Topic, stator is as making electric energy be converted into the important feature parts of mechanical energy and main pyrotoxin in motor, problem encountered is especially
Thorny.New-energy automobile, especially hybrid vehicle power motor design in, in order to obtain less bulk and
Higher torque exports, and selects that to have winding overhang size little more and more, and iron core utilization is high, torque output high
Centralized wound stator assembly structure be designed.
But, the most but it is faced with problems: 1. owing to stator is the main pyrotoxin of motor, stator
Temperature directly influences the efficiency of motor, performance, insulation safety and life-span, in order to realize bigger power output, how existing
More effectively cooling down heat radiation in having space is a difficult problem；2. due to the compactest power assembly arrangement space with day by day
Contradiction between the motor performance requirement improved, in the motor stator design with cooling system, on the one hand motor to be ensured is total
Become the minimal design space of outline, on the one hand also require bigger iron core utilization, therefore the yoke portion size quilt of motor stator
That compresses is more and more less, and this causes motor stator in the actual course of processing, either uses Dies ' Blanking still to use line to cut
All following problems may be encountered to cut processing: owing to stator yoke is the thinnest, therefore the rigidity of stator punching is very poor, the circle of stator inside and outside circle
Degree wants to reach design accuracy can be extremely difficult, not only affects productive temp but also affect the performance output that motor is actual；Lead the most at present
In the product design of stream, such as accompanying drawing 9 and accompanying drawing 10, in order to ensure field frame assembly conduction of heat and transmission moment of torsion, field frame assembly is adopted more
By iron core and housing interference fit, this mode both result in the intensity to housing and material all has higher requirements, again due to cold
But the existence of passage, for ensureing that height need to increase housing wall thickness, therefore limits the further compression of shell dimension, the most indirectly adds
The problem that yoke portion size in acute problem 2 is the thinnest.To sum up, have the field frame assembly structural research of more preferable processing technology with
And novel cooling device be designed to the task of top priority.
Describing the chiller of a kind of motor in patent CN101023572A, this device is had the ability according on stator core
The situation of different parts adjusts its cooling capacity, it is achieved the accurate cooling of different plunger position.Although this device but effect obtains
Having arrived certain raising, but its structure is complicated, cost is high, and through engineering approaches application difficulty is big, and cannot be to field frame assembly structure
In real pyrotoxin (i.e. stator winding) directly cool down, cooling effectiveness is still insufficient for following car load to motor
Demand.
Patent CN103296824A and patent CN103532307A each describe one and can carry out stator winding directly
Connect many jets electric machine structure of spraying cooling.Although this design cooling effectiveness is higher, but for realizing its cooling system, electricity
Casing body complicated structure, difficulty of processing is high, uses that interference is spacing more result in its height to housing between stator and housing
Requirement of strength, such structure causes housing to take bigger radial space, makes the effective radial dimension of motor reduce, and iron core utilizes
Rate reduces, and power of motor density and torque density are limited.
For the problems referred to above, how in limited space, improve motor effective diameter, improve stator core utilization rate,
Improving cooling effectiveness, playing motor performance to greatest extent becomes the novel automobile power motor stator of new-energy automobile and cold
But the key of system design.
Summary of the invention
It is an object of the invention to provide a kind of novel automobile power motor stator and cooling system thereof, it both can realize
The efficient cooling that used in new energy vehicles electric system requires, can ensure that again effective radial dimension of motor is (i.e. outside stator significantly
Footpath size), improve stator core utilization rate；While ensureing the output of motor high-performance, it is also ensured that adding of stator punching
Work manufacturability.
The field frame assembly structure of a kind of novel automobile power motor of the present invention and cooling system, its field frame assembly
It is made up of stator core, stator winding and several mozzle assemblies；Its cooling system is by oil-in, mozzle assembly, fuel-displaced
Mouth, Fuel Tanking Unit, defecator and cooling oil heat abstractor are constituted.
Described stator core is formed through welding or riveting by after some silicon steel plate stackings, is structurally divided into teeth portion and yoke portion
Two parts, have through hole in its yoke portion；
Described stator winding, is assemblied on stator core teeth portion, fixes with stator core and is connected, the axial two ends of winding
Outside stator core；
Described mozzle assembly, is assemblied in the yoke portion through hole of stator core, and the main body of mozzle assembly is leading of hollow
Flow tube, mozzle axial length is longer than stator core.Mozzle is disposed with nozzle opening, enters oilhole, sealing device and location
Device.Wherein, described nozzle opening, connection mozzle and motor cavity, an at least nozzle opening cloth in each mozzle assembly
Put the vertical direction of end at stator winding；Described enter oilhole, connection mozzle and the oil duct being arranged within end cap, or
Connection mozzle and oil supply pipe；Described sealing device, can be to seal sprue, or sealing ring, or other can be close
Envelope cooling oil, after making cooling oil enter mozzle, the device that can only flow out from nozzle opening or structure；Described positioner, permissible
It is snap ring, or the bulge-structure of mozzle self, or other can be between stator core and mozzle assembly or be fixed
The structure axially positioned between sub-assembly and end cap or device；
Described field frame assembly, is arranged in motor cavity, its location and the transmission of moment of torsion be required to by mozzle assembly with
The cooperation of electric motor end cap ensures.Described motor cavity, refers to the inner space that both sides end cap is surrounded before and after motor with housing；
Described cooling system is that oil is cold, and its coolant can be motor special cooling oil, it is also possible to be to share with change speed gear box
Gear oil；
Described oil-in is arranged on end cap, and oil-in can be with individualism, it is also possible to mozzle assembly enter oilhole
Carry out integrated.Oil-in one end is connected with oil supply pipe, and entering oilhole or leading to and be arranged in end cap of mozzle assembly is led in one end
In the mozzle assembly that connects enter the oil duct of oilhole；
Described oil-out is arranged on end cap or housing, and one end is connected with motor cavity, and one end is connected with flowline
Connecing or directly communicate with Fuel Tanking Unit, the interior conduit sectional area of oil outlet is greater than equal to fuel feed hole sectional area and can protect
Card cooling oil is in the minimum point of the Rotor Assembly to be less than of high liquid level (HLL) of motor cavity；
Described Fuel Tanking Unit, it can be integrated in the oil pan structure bottom electric machine casing, it is also possible to is plug-in special
Fuel Tanking Unit, or other housing components；
Described defecator, can be cooling oil rectifier, it is also possible to be integrated in the scrap collection bottom Fuel Tanking Unit
Device；
Described heat abstractor, can be the active cooling devices such as cooling oil cooler, it is also possible to be integrated in Fuel Tanking Unit
On the passive radiator structure such as radiating ribs.
The positive effect of the present invention is: field frame assembly structure and cooling system are carried out integrated design by this assembly, knot
Structure Highgrade integration, cancels inner housing and the coolant jacket structure of conventional motors so that the motor in certain arrangement space is effective
Volume (i.e. electric machine iron core volume) is maximized, and the maximum output performance of motor can increase, the power density of motor and torsion
Square density is promoted.And the present invention can also ensure the preferable processing technology of stator core, shorten productive temp, be suitable for
In actual production is put into practice.
Accompanying drawing explanation
Fig. 1 is a kind of motor assembly section with present example and cooling oil path floor map.
Fig. 2 is the field frame assembly structure chart shown in Fig. 1.
Fig. 3 is a kind of field frame assembly section of structure in present example.
Fig. 4 is a kind of local field frame assembly figure that can take into account iron core cooling in present example.
Fig. 5 is the structure sectional view of scheme shown in Fig. 4.
Fig. 6 is a kind of section of structure with single mozzle field frame assembly in present example.
Fig. 7 is that in present example, one has many mozzles field frame assembly schematic diagram.
Fig. 8 is the cooling oil path schematic three dimensional views shown in Fig. 7.
Fig. 9 is a kind of stator and cooling structure profile in designing for existing product.
Figure 10 is another kind of stator and cooling structure schematic diagram in designing for existing product.
2-sprue 3-mozzle assembly 4-drive end bearing bracket 5-oil sealing 6-rotor assembly 7-stator core 8-stator winding
9-housing 10-flowline 11-rear end cap 12-plug-in oil can 13-radiator 14-filter 15-oil pump 16-nozzle opening
After 17-, 20-guiding gutter 26-UNICOM oil duct 27-in oilhole 18-iron core nozzle opening 19-plastic packaging end cools down groove 28-oilhole
30-yoke portion 31-teeth portion 33-mozzle 34-snap ring 35-thrust position 36-field frame assembly
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings:
Shown in Fig. 1 for a single motor assembly and cooling system thereof.This motor is a permanent magnetism oil-cooled motor, this motor
Housing 9 only have protection and sealing function, the positioning function of stator core 7 is realized by mozzle assembly 3, such housing 9
Need to be substantially reduced the requirement of strength of housing 9 with stator core 7 matched in clearance, the radial direction that such housing takies motor assembly is empty
Between can minimize.The detailed description of the invention realizing location of its stator core 7 is as follows, and its stator core 7 yoke portion has logical
Hole, is equipped with mozzle assembly 3 in through-holes, and passes through mozzle assembly 3 by stator core 7 relative to drive end bearing bracket 4 and rear end
Lid 11 carries out location and moment of torsion transmits, owing to rotor assembly 6 positions with drive end bearing bracket 4 and rear end cap 11 also by bearing, because of
This ensure that stator and the axial alignment of rotor and radially coaxial degree.
The mozzle assembly 3 of this motor not only has mechanical positioning function, the most also has and leads coolant
To function.As shown by the arrows in Figure 1, the cooling oil of this motor flows to as follows: by the effect of oil pump 15, cooling oil is from plug-in oil
Kettle 12 is drawn out, by the process of radiator 13 with filter 14, flows through oil pump 15, enter motor originally from oil-in 1
Body, after cooling oil enters mozzle assembly 3, from the nozzle opening 16 being preset in above stator winding 8 end and rear oilhole 17
Ejection, directly sprays on winding 8 end, it is achieved refrigerating function.Absorb the cooling oil after heat along winding 8 and two side ends
Lid 4,11 flows to motor bottom, and in oilhole 16, the oil of ejection can be directly entered flowline 10 in the past, from the ejection of rear oilhole 17
After bottom oil arrival, need to flow through the UNICOM's oil duct 26 opened bottom motor stator core 7, flowline 10 could be entered.Cooling oil
After flowline 10 outflow motor body, can return in plug-in oil can 12.The sealing of this cooling system is achieved in that
At housing 9 and drive end bearing bracket 4, there is flange face to coordinate between housing 9 with rear end cap 11, sealed by gluing；At mozzle assembly 3
Two ends are sealed by sprue 2, are sealed by oil sealing 5 between rotor assembly 6 and both sides end cap 4 and 11.
As shown in Figure 2 to 4, often set field frame assembly 36 is by a stator core 7, some for the typical structure of field frame assembly 36
Individual stator winding 8 and several mozzle assemblies 3 form.Wherein, stator winding 8 is fixedly connected on the teeth portion of stator core 7
On 31, mozzle general assembly is in the yoke portion 30 of stator core 7 and mozzle assembly is by location snap ring 34 or thrust position
35 keep axial location with stator core 7.
Shown in Fig. 3 for a kind of typical field frame assembly 36 targeting scheme in motor cavity, be embodied as follows, axle
Upwards, mozzle 33 inserts in the pilot hole of drive end bearing bracket 4, mozzle 33 foremost beyond drive end bearing bracket 4, by two locator cards
Ring 34 is respectively assembled in the draw-in groove of the mozzle 33 being positioned on drive end bearing bracket 4 front/rear end formation axially location；In radially location
On, mozzle 33 rear end is assemblied in the spacing hole of rear end cap 11, and stator core 7 external diameter and electric machine casing 9 internal diameter little between
Gap coordinates, thus ensures the radial direction location of field frame assembly 36；Especially, if Motor Stator Assembly 36 as shown in Figure 7, then stator
The radial direction location of assembly 36 can also use, and at least two mozzles 33 are assemblied in the spacing hole of rear end cap 11, so, and stator
Iron core 7 external diameter can not coordinate the radial direction location that still ensure that field frame assembly 36 with the internal diameter of electric machine casing 9；
Preferably, in order to meet higher cooling requirements, the cooling scheme of this stator can come according to concrete different situations
Improving, Fig. 4～Fig. 8 is the most several typical improvement embodiments.
Shown in Fig. 4 Yu Fig. 5 is a kind of improvement embodiment for raising iron core cooling capacity, such as Fig. 4 Yu Fig. 5 institute
Showing, when stator core 7 needs to strengthen cooling, its stator core 7 top is having the through hole of assembling mozzle assembly 3 simultaneously,
Cooling groove 27 is had at through hole envisaged underneath, on mozzle assembly 3 before and after having 16,17 two while nozzle opening,
The axial midpoint of iron core also has iron core nozzle opening 18, and part cooling oil enters cooling groove 27 by iron core nozzle opening 18,
Cool down to iron core 7 both sides, owing to coolant directly contacts with iron core, it is possible to absorb iron core best then along cooling groove 27
Heat on 7, thus reach to strengthen the purpose of cooling iron core.
Shown in Fig. 6 is another kind of improvement embodiment, and it is directed to cool down oil the most for some reason
Underfed situation.In order to solve coolant deficiency situation, by reducing the spatter loss of coolant and heat radiation system can be improved
Several two aspects are designed.As shown in Figure 6, by using automobile high thermoconductivity insulant to be entered stator winding 8 end
The overall plastic packaging of row becomes plastic packaging end 19, and is molded with guiding gutter 20 on the surface of plastic packaging end 19, when cooling oil passes through nozzle opening
16, after 17 ejections, can directly spray in the guiding gutter 20 of plastic packaging end 19, by the effect of guiding gutter 20, cool down more
Oil can be along guiding gutter 20, and to motor bottom diffluence, in the process, cooling oil contacts with plastic packaging end 19 all the time, can absorb
More heat.Plastic packaging end 19 and the existence of guiding gutter 20, effectively increase the time of contact of cooling oil and winding overhang
And the cooling oil mass of winding contact in unit volume, play the advantage that cooling oil specific heat capacity is big fully, to greatest extent
Reduce the impact that cooling oil underfed problem is brought.
Shown in Fig. 7～Fig. 8 is another kind of improvement embodiment, and it can realize cooling system can be according to diverse location
The difference of winding overhang heat dissipation capacity the cooling oil of different flow is provided.Concrete scheme is according to implemented as described below: as Fig. 7 with
Shown in Fig. 8, in the vertical direction iron core of winding 8 end that each needs directly cool down, open hole, all assembling mozzle assembly
3.The difference of the caloric value according to each winding 8 end, by regulation mozzle assembly 3 internal diameter, the spray of respective winding 8 end
The aperture of oilhole 16 and 17 and the internal diameter of the oilhole 28 in drive end bearing bracket 4, regulate the cooling oil of different winding 8 end
Flow resistance, therefore realizes the cooling oil of the corresponding different flow of different winding 8.
Being described in detail the present invention above by detailed description of the invention, this embodiment is only the present invention's
Preferred embodiments, should not be construed as limitation of the present invention, and the change that the principle of any foundation present invention is done all should be in the present invention
Protection domain within.Below with reference to accompanying drawing, technical solution of the present invention is further elaborated.
Claims (3)
1. a novel automobile power motor field frame assembly structure and cooling system thereof, it is characterised in that:
Its field frame assembly is made up of stator core, stator winding and several mozzle assemblies；Its cooling system by oil-in, lead
Flow tube assembly, oil-out, Fuel Tanking Unit, defecator and cooling oil heat abstractor are constituted,
Described stator core is formed through welding or riveting by after some silicon steel plate stackings；
Described stator winding, fixes with described stator core and is connected, and the axial both side ends of winding is exposed to described stator core
Outside；
Described mozzle assembly, by mozzle, nozzle opening, enters oilhole, sealing device and positioner and is constituted；
Described oil-in, is arranged on drive end bearing bracket or the rear end cap of motor, and described oil-in one end is connected with oil supply pipe, one end
The described mozzle assembly that connects that oilhole or lead to is arranged in end cap that enters leading to described mozzle assembly enters the oil duct of oilhole；
Described oil-out, is arranged on end cap or the housing of motor, and one end is connected with described motor cavity, one end and flowline
Road is connected or directly communicates with described Fuel Tanking Unit.
Field frame assembly structure the most according to claim 1 and cooling system thereof, it is characterised in that
Described field frame assembly, is arranged in motor cavity, the location of field frame assembly and moment of torsion transmission all by mozzle assembly and
The cooperation of electric motor end cap ensures；
Described stator core is structurally divided into teeth portion and yoke portion two parts, and described stator core yoke portion has through hole；
Described stator winding, is assemblied in described stator core teeth portion；
Described mozzle assembly, is assemblied in the yoke portion through hole of described stator core.
Field frame assembly structure the most according to claim 1 and cooling system thereof, it is characterised in that
Described mozzle, for hollow hard straight pipeline, and mozzle axial length is longer than stator core；
Described nozzle opening connection mozzle and motor cavity, in each mozzle assembly, at least a nozzle opening is arranged in stator
The vertical direction of the end of winding；
Described enter oilhole, connection mozzle and the oil duct being arranged within end cap, or connection mozzle and oil supply pipe；
Described sealing device, is to seal cooling oil, after making cooling oil enter mozzle, and the dress that can only flow out from nozzle opening
Put or structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555830.XA CN106160277B (en) | 2016-07-14 | 2016-07-14 | A kind of dynamic motor for vehicle field frame assembly structure and its cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555830.XA CN106160277B (en) | 2016-07-14 | 2016-07-14 | A kind of dynamic motor for vehicle field frame assembly structure and its cooling system |
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| Publication Number | Publication Date |
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| CN106160277A true CN106160277A (en) | 2016-11-23 |
| CN106160277B CN106160277B (en) | 2019-02-12 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104039A (en) * | 2018-07-20 | 2018-12-28 | 上汽通用汽车有限公司 | Integrated motor |
| CN109639054A (en) * | 2018-10-25 | 2019-04-16 | 法法汽车(中国)有限公司 | Motor stator with oil cooled system system |
| CN110417170A (en) * | 2019-08-15 | 2019-11-05 | 广东合一新材料研究院有限公司 | A kind of high-speed motor with Spindle's heat emission structure |
| CN110707843A (en) * | 2019-08-09 | 2020-01-17 | 武汉理工大学 | Motor cooling structure and permanent magnet synchronous motor for electric automobile |
| CN111654145A (en) * | 2020-05-28 | 2020-09-11 | 珠海格力电器股份有限公司 | Motor end cover, motor cooling structure, motor and electric automobile |
| CN112152377A (en) * | 2019-06-28 | 2020-12-29 | 蜂巢电驱动科技河北有限公司 | Electric machine |
| CN112448514A (en) * | 2019-08-30 | 2021-03-05 | 现代自动车株式会社 | Electric machine with cooling system |
| CN113437825A (en) * | 2021-07-05 | 2021-09-24 | 珠海格力电器股份有限公司 | Motor heat radiation structure, motor and compressor |
| CN113872372A (en) * | 2021-10-22 | 2021-12-31 | 珠海格力电器股份有限公司 | Protection architecture, oil blanket and motor |
| CN113939980A (en) * | 2021-02-26 | 2022-01-14 | 华为数字能源技术有限公司 | Power assembly and electric vehicle |
| CN114421712A (en) * | 2021-12-22 | 2022-04-29 | 浙江零跑科技股份有限公司 | Oil cooling motor stator end winding oil spout cooling body |
| CN114598051A (en) * | 2022-03-02 | 2022-06-07 | 蔚来动力科技(合肥)有限公司 | Motor for vehicle and vehicle |
| WO2022134746A1 (en) * | 2020-12-25 | 2022-06-30 | 奇瑞汽车股份有限公司 | Oil-cooled motor cooling system, and vehicle |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104039A (en) * | 2018-07-20 | 2018-12-28 | 上汽通用汽车有限公司 | Integrated motor |
| CN109639054A (en) * | 2018-10-25 | 2019-04-16 | 法法汽车(中国)有限公司 | Motor stator with oil cooled system system |
| CN109639054B (en) * | 2018-10-25 | 2024-03-22 | 法法汽车(中国)有限公司 | Motor stator with oil cooling system |
| CN112152377A (en) * | 2019-06-28 | 2020-12-29 | 蜂巢电驱动科技河北有限公司 | Electric machine |
| CN110707843A (en) * | 2019-08-09 | 2020-01-17 | 武汉理工大学 | Motor cooling structure and permanent magnet synchronous motor for electric automobile |
| CN110417170A (en) * | 2019-08-15 | 2019-11-05 | 广东合一新材料研究院有限公司 | A kind of high-speed motor with Spindle's heat emission structure |
| CN110417170B (en) * | 2019-08-15 | 2024-05-14 | 广东合一新材料研究院有限公司 | High-speed motor with main shaft heat radiation structure |
| CN112448514A (en) * | 2019-08-30 | 2021-03-05 | 现代自动车株式会社 | Electric machine with cooling system |
| CN111654145A (en) * | 2020-05-28 | 2020-09-11 | 珠海格力电器股份有限公司 | Motor end cover, motor cooling structure, motor and electric automobile |
| CN111654145B (en) * | 2020-05-28 | 2021-08-31 | 珠海格力电器股份有限公司 | Motor end cover, motor cooling structure, motor and electric automobile |
| WO2022134746A1 (en) * | 2020-12-25 | 2022-06-30 | 奇瑞汽车股份有限公司 | Oil-cooled motor cooling system, and vehicle |
| CN113939980A (en) * | 2021-02-26 | 2022-01-14 | 华为数字能源技术有限公司 | Power assembly and electric vehicle |
| CN113939980B (en) * | 2021-02-26 | 2024-04-09 | 华为数字能源技术有限公司 | Power assembly and electric vehicle |
| CN113437825A (en) * | 2021-07-05 | 2021-09-24 | 珠海格力电器股份有限公司 | Motor heat radiation structure, motor and compressor |
| CN113872372B (en) * | 2021-10-22 | 2023-03-24 | 珠海格力电器股份有限公司 | Protection structure, oil blanket and motor |
| CN113872372A (en) * | 2021-10-22 | 2021-12-31 | 珠海格力电器股份有限公司 | Protection architecture, oil blanket and motor |
| CN114421712A (en) * | 2021-12-22 | 2022-04-29 | 浙江零跑科技股份有限公司 | Oil cooling motor stator end winding oil spout cooling body |
| CN114421712B (en) * | 2021-12-22 | 2023-08-01 | 浙江零跑科技股份有限公司 | Oil-cooled motor stator end winding oil spray cooling mechanism |
| CN114598051A (en) * | 2022-03-02 | 2022-06-07 | 蔚来动力科技(合肥)有限公司 | Motor for vehicle and vehicle |
| CN114598051B (en) * | 2022-03-02 | 2024-02-27 | 蔚来动力科技(合肥)有限公司 | Motor for vehicle and vehicle |
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| CN106160277B (en) | 2019-02-12 |
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