CN206379783U - A kind of novel automobile power motor field frame assembly structure and its cooling system - Google Patents
A kind of novel automobile power motor field frame assembly structure and its cooling system Download PDFInfo
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- CN206379783U CN206379783U CN201620743829.5U CN201620743829U CN206379783U CN 206379783 U CN206379783 U CN 206379783U CN 201620743829 U CN201620743829 U CN 201620743829U CN 206379783 U CN206379783 U CN 206379783U
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Abstract
The utility model provides the cooling system of a kind of Motor Stator Assembly structure and the field frame assembly, and its field frame assembly mainly includes water conservancy diversion pipe assembly (3), stator core (7), winding (8)；Its cooling system mainly includes oil inlet (1), water conservancy diversion pipe assembly (3), oil-out (10), Fuel Tanking Unit (12), filter (13) and cooling oil heat abstractor (14), water conservancy diversion pipe assembly (3) is assemblied in the yoke portion through hole of stator core (7), and field frame assembly ensures positioning by the cooperation between water conservancy diversion pipe assembly (3) and both sides end cap (4,11)；The type of cooling of cooling system is the oil cooling mode of directly spray winding (8)；In the technical solution of the utility model, the efficient cooling of power motor system had both been realized, effective radial dimension of motor is also substantially ensure that, the power density and torque density of motor is improved；While the output of motor high-performance is ensured, the processing technology of stator punching in turn ensure that.
Description
Technical field
The utility model is related to the cooling system of a kind of Motor Stator Assembly structure and the stator, belongs to automobile motor
Field, the field frame assembly structure and its oil cooling system of more particularly to a kind of used in new energy vehicles power motor.
Background technology
Turn into today of China Automobile Industry theme in energy-conservation and environmental protection, new-energy automobile has become automobile vendor of various countries
The object of primary study, power motor is also suggested higher and higher requirement as its main power source.
Power motor is generated and much asked therewith while more and more efficiently power is provided for new-energy automobile, also
Topic, stator is as electric energy is converted into mechanical energy in motor important feature part and main pyrotoxin, and problem encountered is especially
It is intractable.New-energy automobile, especially hybrid vehicle power motor design in, in order to obtain smaller bulk and
Higher torque output, small from having winding overhang size more and more, iron core utilization is high, the features such as torque output is high
Centralized wound stator assembly structure be designed.
However, being but faced with problems in actual applications：1. because stator is the main pyrotoxin of motor, stator
Temperature directly influences efficiency, performance, insulation safety and the life-span of motor, in order to realize bigger power output, how existing
It is a problem to have progress more effectively cooling radiating in space；2. due to increasingly compact power assembly arrangement space and increasingly
Contradiction between the motor performance requirement of raising, in the design of motor stator and cooling system, on the one hand will ensure that motor is total
Into the minimal design space of outline, on the one hand bigger iron core utilization, therefore the yoke portion size quilt of motor stator are also required
That compresses is less and less, and this causes motor stator during actual processing, is either still cut using Dies ' Blanking using line
Cutting processing, all following problems may be encountered：Because stator yoke is excessively thin, therefore the rigidity of stator punching is very poor, the circle of stator inside and outside circle
Degree is wanted to reach that design accuracy can be extremely difficult, has not only influenceed productive temp but also has influenceed the actual performance output of motor；3. it is main at present
In the product design of stream, such as accompanying drawing 9 and accompanying drawing 10, in order to ensure field frame assembly heat transfer and transmit moment of torsion, are adopted more field frame assembly
It is interference fitted with iron core and housing, this mode both result in all to have higher requirements to the intensity and material of housing, and due to cold
But the presence of passage, to ensure that height need to increase housing wall thickness, therefore limits the further compression of shell dimension, also adds indirectly
The problem of yoke portion size in acute problem 2 is excessively thin.To sum up, the field frame assembly structural research with more preferable processing technology with
And novel cooling device is designed to the task of top priority.
A kind of cooling device of motor is described in patent CN101023572A, the device is had the ability according on stator core
The situation of different parts adjusts its cooling capacity, realizes the accurate cooling of different plunger positions.Although but effect is obtained this device
Certain raising has been arrived, but its is complicated, cost is high, and engineering application difficulty is big, and can not be to field frame assembly structure
In really pyrotoxin (i.e. stator winding) directly cooled down, cooling effectiveness, which remains unchanged, is insufficient for following vehicle to motor
Demand.
Patent CN103296824A and patent CN103532307A each describes one kind and stator winding can be carried out directly
Connect many jet electric machine structures of spraying cooling.Although this design cooling effectiveness is higher, to realize its cooling system, electricity
Machine shell structure is more complicated, and difficulty of processing is high, and the spacing height that more result in it to housing of interference is used between stator and housing
Intensity requirement, such structure causes housing to take larger radial space, reduces the effective radial dimension of motor, iron core is utilized
Rate is reduced, and power of motor density and torque density are limited.
In view of the above-mentioned problems, how in limited space, improving motor effective diameter, stator core utilization rate is improved,
Cooling effectiveness is improved, motor performance is played to greatest extent turns into the novel automobile power motor stator of new-energy automobile and its cold
But the key of system design.
Utility model content
The purpose of this utility model is to provide a kind of novel automobile power motor stator and its cooling system, and it both can be with
The efficient cooling of used in new energy vehicles electric system requirement is realized, can significantly ensure that effective radial dimension of motor is (i.e. fixed again
Sub- outside dimension), improve stator core utilization rate；While the output of motor high-performance is ensured, it is also ensured that stator punching
Processing technology.
The field frame assembly structure and its cooling system of a kind of novel automobile power motor described in the utility model, its stator
Assembly is made up of stator core, stator winding and several water conservancy diversion pipe assemblies；Its cooling system by oil inlet, water conservancy diversion pipe assembly,
Oil-out, Fuel Tanking Unit, filter and cooling oil heat abstractor are constituted.
The stator core is formed after some silicon steel plate stackings through welding or riveting, and teeth portion and yoke portion are divided into structure
Two parts, through hole is provided with its yoke portion；
The stator winding, is assemblied on stator core teeth portion, is fixedly connected with stator core, the axial two ends of winding
Outside stator core；
The water conservancy diversion pipe assembly, is assemblied in the yoke portion through hole of stator core, and the main body of water conservancy diversion pipe assembly is led to be hollow
Flow tube, mozzle axial length is longer than stator core.Nozzle opening is disposed with mozzle, enters oilhole, sealing device and positioning
Device.Wherein, at least one nozzle opening cloth in the nozzle opening, connection mozzle and motor cavity, each water conservancy diversion pipe assembly
Put the vertical direction in the end of stator winding；It is described enter oilhole, connection mozzle and the oil duct that is arranged within end cap, or
Connect mozzle and oil supply pipe；Described sealing device, can be sealing sprue, either sealing ring or other can be close
Cooling oil is sealed, cooling oil is entered after mozzle, the device or structure that can only be flowed out from nozzle opening；The positioner, can be with
Snap ring, either the bulge-structure of mozzle itself or other can be between stator core and water conservancy diversion pipe assembly or be fixed
The structure or device of axially position are carried out between sub- assembly and end cap；
The field frame assembly, is arranged in motor cavity, its position and moment of torsion transmission be required to by water conservancy diversion pipe assembly with
The cooperation of electric motor end cap ensures.The motor cavity, refers to the inner space that motor front and rear sides end cap is surrounded with housing；
The cooling system is oil cooling, and its coolant can share for the special cooling oil of motor or with gearbox
Gear oil；
The oil inlet is arranged on end cap, and oil inlet can also enter oilhole with individualism with water conservancy diversion pipe assembly
Carry out integrated.Oil inlet one end is connected with oil supply pipe, and one end leads to water conservancy diversion pipe assembly and enters oilhole or lead to be arranged in end cap
In connection water conservancy diversion pipe assembly enter the oil duct of oilhole；
The oil-out is arranged on end cap or housing, and one end is connected with motor cavity, and one end is connected with flowline
Connect or directly communicated with Fuel Tanking Unit, the interior conduit sectional area of oil outlet is greater than equal to fuel feed hole sectional area and can protected
The highest liquid level that cooling oil is demonstrate,proved in motor cavity will be less than the minimum point of Rotor Assembly；
The Fuel Tanking Unit, it can be integrated in the oil pan structure of electric machine casing bottom or plug-in special
Fuel Tanking Unit, or other housing components；
The filter, can be the scrap collection for cooling down oil rectifier or being integrated in Fuel Tanking Unit bottom
Device；
The heat abstractor can be the active cooling devices such as cooling oil cooler or be integrated in Fuel Tanking Unit
On the passive radiator structure such as radiating ribs.
Good effect of the present utility model is：The assembly is set field frame assembly structure is integrated with cooling system progress
Meter, structure height is integrated, cancels the inner housing and cooling nested structure of conventional motors so that the motor in certain arrangement space
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 torque density is lifted.And the utility model can also ensure the preferable processing technology of stator core, shorten production
Beat, it is adaptable in actual production practice.
Brief description of the drawings
Fig. 1 is a kind of motor assembly section and cooling oil path floor map with the utility model example.
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 the utility model example.
Fig. 4 can take into account the local field frame assembly figure of iron core cooling to be a kind of in the utility model 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 the utility model example.
Fig. 7 has many mozzle field frame assembly schematic diagrames to be a kind of in the utility model example.
Fig. 8 is the cooling oil path schematic three dimensional views shown in Fig. 7.
A kind of Fig. 9 stator and cooling structure profiles in being designed for existing product.
Figure 10 another stator and cooling structure schematic diagrames in being designed for existing product.
2- sprue 3- water conservancy diversion pipe assembly 4- drive end bearing bracket 5- oil sealing 6- rotor assembly 7- stator core 8- stator winding
The plug-in oil can 13- radiators 14- filters 15- oil pumps 16- nozzle openings of 9- housing 10- flowline 11- rear end caps 12-
Oilhole 18- iron cores nozzle opening 19- plastic packagings end 20- guiding gutter 26- UNICOM oil duct 27- cool down groove 28- oilholes after 17-
30- yokes portion 31- teeth portion 33- mozzle 34- snap ring 35- thrusts position 36- field frame assemblies
Embodiment
The utility model is further described below in conjunction with the accompanying drawings：
Shown in Fig. 1 for single a motor assembly and its cooling system.The motor is a permanent magnetism oil-cooled motor, the motor
Housing 9 there is protection and sealing function, the positioning function of stator core 7 is realized by water conservancy diversion pipe assembly 3, such housing 9
It need to coordinate with the gap of stator core 7, the intensity requirement to housing 9 is substantially reduced, the radial direction that such housing takes motor assembly is empty
Between can reach minimum.The embodiment of the realization positioning of its stator core 7 is as follows, and its yoke portion of stator core 7 is provided with logical
Hole, is equipped with water conservancy diversion pipe assembly 3 in through-holes, and by water conservancy diversion pipe assembly 3 by stator core 7 relative to drive end bearing bracket 4 and rear end
Lid 11 carries out positioning and moment of torsion transmission, because rotor assembly 6 is positioned also by bearing with drive end bearing bracket 4 and rear end cap 11, because
This ensure that the axial alignment and radially coaxial degree of stator and rotor.
The water conservancy diversion pipe assembly 3 of the motor not only has mechanical positioning function, also has in a cooling system and coolant is led
To function.As shown by the arrows in Figure 1, the cooling oil flow direction of the motor is as follows：By the effect of oil pump 15, cooling oil is from plug-in oil
It is drawn out in kettle 12, by the processing of radiator 13 and filter 14, flows through oil pump 15, enters motor sheet from oil inlet 1
Body, after cooling oil enters water conservancy diversion pipe assembly 3, from the nozzle opening 16 and rear oilhole 17 being preset in above the end of stator winding 8
Spray, directly spray on the end of winding 8, realize refrigerating function.Cooling oil after absorption heat is along winding 8 and two side ends
Lid 4,11 flows to motor bottom, and the oil sprayed from preceding oilhole 16 can be directly entered flowline 10, is sprayed from rear oilhole 17
, it is necessary to flow through UNICOM's oil duct 26 that the bottom of motor stator core 7 is opened behind oil arrival bottom, flowline 10 could be entered.Cooling oil
After the outflow motor body of flowline 10, you can return in plug-in oil can 12.The sealing of the cooling system is achieved in that
There is flange face cooperation between housing 9 and drive end bearing bracket 4, housing 9 and rear end cap 11, sealed by gluing；In water conservancy diversion pipe assembly 3
Two ends are sealed by sprue 2, are sealed between rotor assembly 6 and both sides end cap 4 and 11 by oil sealing 5.
The typical structure of field frame assembly 36 covers field frame assembly 36 by a stator core 7 as shown in Figure 2 to 4, often, some
Individual stator winding 8 and several water conservancy diversion pipe assemblies 3 are constituted.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 water conservancy diversion pipe assembly is by positioning snap ring 34 or thrust position
35 keep axial positioning with stator core 7.
The targeting scheme for a kind of typical field frame assembly 36 in motor cavity shown in Fig. 3, is embodied as follows, axle
Upwards, mozzle 33 insertion drive end bearing bracket 4 pilot hole in, mozzle 33 foremost exceed drive end bearing bracket 4, pass through two locator cards
Ring 34 is respectively assembled in the neck of the mozzle 33 on the front/rear end of drive end bearing bracket 4 and forms axially position；In radial positioning
On, between the rear end of mozzle 33 is assemblied in the spacing hole of rear end cap 11, and the external diameter of stator core 7 and the internal diameter of electric machine casing 9 are small
Gap coordinates, so as to ensure the radial positioning of field frame assembly 36；Especially, if Motor Stator Assembly 36 is as shown in Figure 7, then stator
The radial positioning of assembly 36 can also be used, and at least two mozzles 33 are assemblied in the spacing hole of rear end cap 11, so, stator
The internal diameter of the external diameter of iron core 7 and electric machine casing 9 can ensure that the radial positioning of field frame assembly 36 without coordinating to remain unchanged；
Preferably, in order to meet higher cooling requirements, the cooling scheme of the stator can according to specific different situations come
It is improved, Fig. 4~Fig. 8 is wherein several typical improvement embodiments.
Shown in Fig. 4 and Fig. 5 is a kind of improvement embodiment for improving iron core cooling capacity, such as Fig. 4 and Fig. 5 institutes
Show, when stator core 7 needs to strengthen cooling, the top of its stator core 7 is being provided with the through hole of assembling water conservancy diversion pipe assembly 3 simultaneously,
Have cooling groove 27 in through hole envisaged underneath, on water conservancy diversion pipe assembly 3 being provided with 16,17 two front and rear nozzle openings while,
Iron core axial direction midpoint is also provided with iron core nozzle opening 18, and a part of cooling oil enters cooling groove 27 by iron core nozzle opening 18,
Cooled down then along cooling groove 27 to the both sides of iron core 7, because coolant is directly contacted with iron core, can best absorb iron core
Heat on 7, so as to reach the purpose for strengthening cooling iron core.
Shown in Fig. 6 is another improvement embodiment, and it is directed to ought in design for some reason, cooling oil
Underfed situation., can be by reducing the spatter loss of coolant and improving radiating system in order to solve the not enough situation of coolant
Several two aspects are designed.As shown in fig. 6, the end of stator winding 8 is entered by using automobile high thermoconductivity insulating materials
Row entirety plastic packaging is molded with guiding gutter 20 into plastic packaging end 19, and on the surface of plastic packaging end 19, when cooling oil passes through nozzle opening
16th, after 17 ejections, in the guiding gutter 20 that plastic packaging end 19 can be directly sprayed in, by the effect of guiding gutter 20, more cool down
Oil can be along guiding gutter 20, and to motor bottom diffluence, in the process, cooling oil is contacted with plastic packaging end 19 all the time, can be absorbed
More heats.Plastic packaging end 19 and the presence of guiding gutter 20, effectively increase the time of contact of cooling oil and winding overhang
And the cooling oil mass that winding is contacted in unit volume, the big advantage of cooling oil specific heat capacity is fully played, to greatest extent
Reduce the influence that cooling oil underfed problem is brought.
Shown in Fig. 7~Fig. 8 is another improvement embodiment, and it can realize that 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 being implemented as described below：As Fig. 7 with
Shown in Fig. 8, the opened hole in the vertical direction iron core of each end of winding 8 for needing directly to cool down assembles water conservancy diversion pipe assembly
3.According to the difference of the caloric value of each end of winding 8, by adjust the internal diameter of water conservancy diversion pipe assembly 3, the end of respective winding 8 oil spout
The aperture in hole 16 and 17 and the internal diameter of the oilhole 28 in drive end bearing bracket 4, come the stream of the cooling oil that adjusts the different ends of winding 8
Resistance, therefore realize the cooling oil of the different correspondence of winding 8 different flows.
The utility model is described in detail above by embodiment, the embodiment is only this reality
With new preferred embodiments, it should not be construed as to limitation of the present utility model, it is any to be done according to principle of the present utility model
Change all should be within protection domain of the present utility model.Technical solutions of the utility model are done further below with reference to accompanying drawing
Elaboration.
Claims (7)
1. a kind of novel automobile power motor field frame assembly structure and its cooling system, it is characterised in that：
Its field frame assembly is made up of stator core, stator winding and several water conservancy diversion pipe assemblies；Its cooling system by oil inlet, lead
Flow tube assembly, oil-out, Fuel Tanking Unit, filter and cooling oil heat abstractor are constituted,
The stator core is formed after some silicon steel plate stackings through welding or riveting；
The stator winding, is fixedly connected with the stator core, and the axial both side ends of winding are exposed to the stator core
Outside；
The water conservancy diversion pipe assembly, by mozzle, nozzle opening, enters oilhole, sealing device and positioner and is constituted；
The oil inlet, is arranged on the drive end bearing bracket of motor or rear end cap, and described oil inlet one end is connected with oil supply pipe, one end
Lead to the oil duct that the connection water conservancy diversion pipe assembly that oilhole or lead to is arranged in end cap enters oilhole that enters of the water conservancy diversion pipe assembly；
The oil-out, is arranged on the end cap of motor or housing, and one end is connected with the motor cavity, one end and flowline
Road is connected or directly communicated with the Fuel Tanking Unit.
2. field frame assembly structure according to claim 1 and its cooling system, it is characterised in that
The field frame assembly, is arranged in motor cavity, the positioning of field frame assembly and moment of torsion transmission by water conservancy diversion pipe assembly with
The cooperation of electric motor end cap ensures；
The stator core is divided into teeth portion and yoke portion two parts in structure, and the stator core yoke portion is provided with through hole；
The stator winding, is assemblied in the stator core teeth portion；
The water conservancy diversion pipe assembly, is assemblied in the yoke portion through hole of the stator core.
3. field frame assembly structure according to claim 1 and its cooling system, it is characterised in that
The mozzle, is hollow hard straight pipeline, and mozzle axial length is longer than stator core；
At least one nozzle opening is arranged in stator in the nozzle opening connection mozzle and motor cavity, each water conservancy diversion pipe assembly
The vertical direction of the end of winding；
It is described enter oilhole, connection mozzle and the oil duct that is arranged within end cap, or connection mozzle and oil supply pipe；
Described sealing device, is that can seal cooling oil, cooling oil is entered after mozzle, the dress that can only be flowed out from nozzle opening
Put or structure；
The positioner, be between stator core and water conservancy diversion pipe assembly or be carried out between field frame assembly and end cap it is axially fixed
The structure or device of position.
4. field frame assembly structure according to claim 1 and its cooling system, it is characterised in that
The oil inlet individualism, or carry out Integrated design with the oilhole that enters of the water conservancy diversion pipe assembly；
The oil-out, its interior conduit sectional area is greater than equal to oil inlet sectional area and ensure that cooling oil in motor
The highest liquid level of chamber is less than the minimum point of Rotor Assembly；
The motor cavity, refers to the inner space that motor front and rear sides end cap is surrounded with housing.
5. field frame assembly structure according to claim 1 and its cooling system, it is characterised in that
The water conservancy diversion pipe assembly is kept before the positioning or mozzle insertion of axial direction by positioning snap ring or thrust position and stator core
In the pilot hole of end cap, mozzle foremost exceed drive end bearing bracket, by two positioning snap rings be respectively assembled at positioned at drive end bearing bracket
Axially position is formed in the neck of mozzle on front/rear end；
In radial positioning, mozzle rear end is assemblied in the spacing hole of rear end cap, and stator core external diameter and electric machine casing
Internal diameter small―gap suture coordinates, so as to ensure the radial positioning of field frame assembly；Or at least two mozzles are assemblied in the spacing of rear end cap
Kong Zhong, so, the internal diameter of stator core external diameter and electric machine casing do not coordinate the radial positioning that still ensure that field frame assembly.
6. field frame assembly structure according to claim 1 and its cooling system, it is characterised in that
At the top of the stator core in the through hole for being provided with assembling water conservancy diversion pipe assembly simultaneously, there is cooling groove below through hole, leading
On flow tube assembly while two front and rear nozzle openings are provided with, iron core nozzle opening is also provided with the axial midpoint of iron core, a part
Cooling oil enters cooling groove by iron core nozzle opening, is cooled down then along cooling groove to iron core both sides.
7. field frame assembly structure according to claim 1 and its cooling system, it is characterised in that the stator winding end
Overall plastic packaging is carried out with high thermoconductivity insulating materials and is molded with guiding gutter into plastic packaging end, and on the surface of plastic packaging end, or
Opened hole in the vertical direction iron core of the stator winding end, assembles water conservancy diversion pipe assembly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620743829.5U CN206379783U (en) | 2016-07-14 | 2016-07-14 | A kind of novel automobile power motor field frame assembly structure and its cooling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620743829.5U CN206379783U (en) | 2016-07-14 | 2016-07-14 | A kind of novel automobile power motor field frame assembly structure and its cooling system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160277A (en) * | 2016-07-14 | 2016-11-23 | 中国第汽车股份有限公司 | A kind of novel automobile power motor stator structure and cooling system thereof |
| CN107689704A (en) * | 2017-09-18 | 2018-02-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor and motor assemble method |
| CN108173376A (en) * | 2018-03-06 | 2018-06-15 | 珠海凯邦电机制造有限公司 | Motor and its field frame assembly |
| CN108336865A (en) * | 2018-03-30 | 2018-07-27 | 北京理工大学 | A kind of liquid cooling driving motor |
| CN108347136A (en) * | 2018-05-03 | 2018-07-31 | 包头天工电机有限公司 | Oil cooling wheel hub permanent magnet synchronous motor |
| CN108736631A (en) * | 2018-06-29 | 2018-11-02 | 李忠亮 | The motor of high power density |
| 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 |
| CN111799950A (en) * | 2020-07-22 | 2020-10-20 | 中车株洲电机有限公司 | New energy automobile, driving motor oil cooling system and control method |
| CN112152344A (en) * | 2019-06-28 | 2020-12-29 | 日本电产株式会社 | Drive device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160277A (en) * | 2016-07-14 | 2016-11-23 | 中国第汽车股份有限公司 | A kind of novel automobile power motor stator structure and cooling system thereof |
| CN107689704B (en) * | 2017-09-18 | 2024-01-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor and motor assembling method |
| CN107689704A (en) * | 2017-09-18 | 2018-02-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor and motor assemble method |
| CN108173376A (en) * | 2018-03-06 | 2018-06-15 | 珠海凯邦电机制造有限公司 | Motor and its field frame assembly |
| CN108336865A (en) * | 2018-03-30 | 2018-07-27 | 北京理工大学 | A kind of liquid cooling driving motor |
| CN108336865B (en) * | 2018-03-30 | 2024-03-05 | 北京理工大学 | Liquid cooling driving motor |
| CN108347136A (en) * | 2018-05-03 | 2018-07-31 | 包头天工电机有限公司 | Oil cooling wheel hub permanent magnet synchronous motor |
| CN108347136B (en) * | 2018-05-03 | 2024-01-30 | 包头天工电机有限公司 | Oil-cooled hub permanent magnet synchronous motor |
| CN108736631A (en) * | 2018-06-29 | 2018-11-02 | 李忠亮 | The motor of high power density |
| CN108736631B (en) * | 2018-06-29 | 2024-06-04 | 李忠亮 | High power density motor |
| CN112152344A (en) * | 2019-06-28 | 2020-12-29 | 日本电产株式会社 | Drive device |
| 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 |
| CN111799950A (en) * | 2020-07-22 | 2020-10-20 | 中车株洲电机有限公司 | New energy automobile, driving motor oil cooling system and control method |
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