CN106357053A - In-wheel motor drive system adopting spraying-air cooling combined cooling method - Google Patents
In-wheel motor drive system adopting spraying-air cooling combined cooling method Download PDFInfo
- Publication number
- CN106357053A CN106357053A CN201611064210.2A CN201611064210A CN106357053A CN 106357053 A CN106357053 A CN 106357053A CN 201611064210 A CN201611064210 A CN 201611064210A CN 106357053 A CN106357053 A CN 106357053A
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- Prior art keywords
- cooling
- oil
- motor
- wheel
- air
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/197—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses an in-wheel motor drive system adopting a spraying-air cooling combined cooling method. The in-wheel motor drive system adopting the spraying-air cooling combined cooling method comprises a wheel rim, an in-wheel motor, a motor shell, a rotor spider, a motor support shaft, a spraying device and the like, wherein the wheel rim is connected with the side wall of the rotor spider, and is supported on the motor shell through a bearing; the motor shell is connected with the motor support shaft through a double-screw bolt; the rotor spider is supported on the motor support shaft through a bearing; an oil inlet channel and an oil outlet channel are designed on the motor support shaft; a spiral oil channel is designed on the motor shell; the spraying device is arranged on the oil channel of the motor shell, and is used for providing spray cooling; a vent channel is arranged in the rotor spider, and fan blades are arranged for providing air flow; an oil return opening is designed in the bottom part of the motor shell and is used for collecting sprayed cooling oil, and the cooling oil enters a filtration and radiation device through the oil return channel, and enters the next circulation after being cooled. With the use of the two cooling methods, a better cooling effect can be achieved, and the improvement of the combination property of the in-wheel motor drive system is favored.
Description
Technical field
The present invention relates to a kind of In-wheel motor driving system, more particularly, to one class is using spray and air-cooled combination cooling mode
In-wheel motor driving system.
Background technology
At present, various new-energy automobile technology emerge in an endless stream, and distributed In-wheel motor driving electric automobile is because it is on chassis
Structure arrangement and the obvious technical advantage of active control aspect, are paid much attention to by industry, In-wheel motor driving automobile will drive
Galvanic electricity machine is directly integrated in wheel, and it is the major impetus element of automobilism, and in running, stator coil etc. must
Substantial amounts of heat can be produced；Secondly because inside wheel limited space is it is impossible to enough radiate well.This is accomplished by us by difference
The type of cooling be used on wheel hub motor to reach the purpose of radiating.But the current type of cooling has water-cooled, oil cooling, wind
Cold, spraying cooling etc., wherein especially best with spraying cooling effect.The different types of cooling can obtain on wheel hub motor
Realize, but cooling effect may not necessarily reach the performance requirement of hub drive system, so multiple type of cooling is in wheel hub motor
Upper different parts play respective function and can obtain preferably cooling effect.It is contemplated that the sealing of motor and electromagnetism are special
Property it is necessary to be improved to the overall structure of wheel hub motor while selecting the type of cooling so as to radiating can met
In the case of normal work.
Research work currently, with respect to In-wheel motor driving system cooling aspect is also extremely limited, after coordinate indexing,
Application No. cn201310355901.8 discloses a kind of powered wheel with refrigerating function, Application No.
Cn201210154194.1 discloses a kind of water-cooled wheel hub motor.Above-mentioned patent only carries out structure to single methods for cooling
Design, realizes on a wheel hub motor without reference to simultaneously without reference in wheel hub motor jointly for multiple methods for cooling
Spraying cooling form.
Content of the invention
For the weak link of current In-wheel motor driving system cooling aspect, it is an object of the invention to provide a kind of suitable
For the cooling structure of internal rotor In-wheel motor driving system, it passes through spray and the synthesis of air-cooled two kinds of types of cooling has used
The radiating of In-wheel motor driving system in pairs, to ensure the normal work of In-wheel motor driving system.
The purpose of the present invention is achieved through the following technical solutions:
This system is mainly by wheel rim, oil duct, motor housing, rotor field spider, stator, rotor, spray equipment, flabellum, braking
Device etc. forms.
The wheel hub motor of the present invention is the structure of inner-rotor-type, the type of cooling of employing have spraying cooling and air-cooled two kinds cold
But mode carries out combination cooling.One piece tyre and wheel hub are supported by rotor field spider side wall and motor housing, with rotor field spider
Sidewall sections are to be connected by screw, and are attached by bearing with motor housing portion.Rotor field spider part is by two parts group
Become.A part is joined directly together with rotor, by bearings on motor support axle；Another part is that rotor field spider side wall passes through
Screw is connected with wheel rim and last point respectively.The motor housing also having fixed stator and its winding being connected with motor support axle
Part, this part is attached by stud with motor support axle, assembles for convenience, and motor housing side wall passes through screw and electricity
Machine shell is connected.Stator is fixed on motor housing by alignment pin.Stator winding and rotor are sealed in by motor housing
The confined space being formed with rotor field spider, motor housing is connected with each other by the bearing of good airproof performance with rotor field spider.
Outside said structure, from back oil road cooling oil out need through coarse filter, radiator, oil pump, fine cleaner,
Exsiccator, is transported in the oil input channel of cooling oil duct again.Cooling oil duct is designed under above-mentioned hub motor structure, its
In include oil input channel, back oil road, oil return opening, spray oil duct, spray equipment.Oil input channel and back oil road all design in motor support
On axle, then had respectively entered in spray oil duct and the cooling oil duct of screw type by the oil duct on motor housing.Spray is cold
But it is by the oil duct on motor housing, cooling oil to be transported in spray equipment.Spray equipment be distributed in motor housing and its
On the inner surface of side wall and circumferential inner surface.Spray oil duct and spray equipment group be combined on motor housing can be distributed with many
Individual, to provide enough cooling effects.Spraying cooling with oil by be distributed in motor housing bottom oil return opening enter oil return
Go in pipeline, and finally converge in an oil circuit with the cooling oil cold by spiral pipeline oil, returning from motor support axle
Oil duct transfers out.
Air-cooled structure major design on rotor field spider and motor housing, including flabellum and vent.Do not affecting oil duct
In the case of, vent is being designed on the motor housing side wall of spoke.Equally the inside of rotor field spider and its side wall is drawn
Sky, makes vent passages, and flabellum is arranged on vent passages in the larger peripheral surface of its radius and rotor field spider axially may be used
To turn on, so that wind can enter from side, opposite side is derived.
Under the above constitution, brake is arranged on outside wheel hub motor, and brake disc is designed in rotor field spider side-wall outer side
On.On the basis of meeting braking ability, make wheel hub motor inner space simpler.
In conjunction with said structure, spraying cooling cools down to stator and its winding, rotor etc., and air-cooled stator support is risen
To thermolysis.By both types of cooling, wheel hub motor is comprehensively cooled down, improve the heat radiation energy of wheel hub motor
Power.
With respect to prior art, the invention has the advantages that and beneficial effect:
(1) use on wheel hub motor for the spraying cooling can significantly improve the heat-sinking capability of In-wheel motor driving system.
(2) cooling oil duct of spraying cooling can radiate to motor housing while providing spraying cooling oil, carries
High heat-sinking capability.
The combination cooling of (3) two kinds of types of cooling, improves the heat-sinking capability of wheel hub motor, can meet wheel hub motor
Performance requirement.
(4) brake is arranged on outside wheel hub motor, while easy access, takes full advantage of hub interior space.
Brief description
Fig. 1 is overall structure diagram
Fig. 2 is oil duct and motor housing schematic diagram
Fig. 3 is the front view of figure two
Fig. 4 is the right view of figure two
Fig. 5 is stator support schematic diagram
Fig. 6 is the front view of figure five
Fig. 7 is the right view of figure five
Fig. 8 is no flabellum rotor support schematic diagram
Fig. 9 is the rotor field spider schematic diagram in other positions for the flabellum
In figure: 1. tire 2. wheel rim 3. oil duct 3-1. oil input channel 3-2. back oil road 3-3. spray oil duct 3-4. spiral
Type oil duct 4. stator core and winding 5. magnet steel, 6. rotor 7. rotor field spider 7-1. rotor field spider vent passages 7-2. turn
Submounts side wall 8. hole snap ring 9. deep groove ball bearing, 10. motor support axle 11. motor housing 11-1. motor housing side
Wall 12. hexagon socket cap head screw, 13. alignment pin, 14. brake disc, 15. brake, 16. spray equipment 17. sleeve 18.
Hexagon socket cap head screw 19. oil return opening, 20. studs, 21. ventilation for enclosures mouth, 22. flabellum 23. coarse filter 24. radiates
Device 25. oil pump, 26. fine cleaner 27. exsiccator
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in detail.
Embodiment 1
The present invention is further detailed explanation below in conjunction with the accompanying drawings, but embodiments of the present invention not limited to this.
Employing spraying cooling as shown in Figure 1 and the In-wheel motor driving system of air-cooled two kinds of types of cooling, mainly take turns
Tire 1, wheel rim 2, motor support axle 10, motor housing 11, stator 4, magnet steel 5, rotor 6, rotor field spider 7, brake 15 etc. form.
Wheel rim 2 is directly to be connected with rotor 6 by rotor field spider side wall 7-2, rotor field spider 7.Wheel rim 2 is also by bearings in motor
On shell 11.Stator core and winding 4 are to be connected with motor housing 11 by alignment pin 13.Motor housing 11 passes through double end spiral shell
Post 20 is connected with fixing motor support axle 10.Motor housing 11 and motor housing side wall 11-1 are propped up with rotor by bearing
Frame 7 is connected with each other.Brake disc 14 is arranged on the wall 11-1 of rotor field spider side.
By in schematic diagram Fig. 2 and its front view 3 and right view Fig. 4 it can be seen that oil duct 3 be distributed in motor support axle 10,
On motor housing 11 and motor housing side wall 11-1.Oil input channel 3-1 and back oil road 3-2 is logical from motor support axle 10
Cross.Cooling oil by oil input channel 3-1 enter motor housing 11 on oil duct 3 in, respectively enter oil cooling screw type oil duct 3-4 and
In spray oil duct 3-3.Can carry out multiple spray equipments 16 are installed on one spray oil duct 3-3, simultaneously in motor housing 11 and
Multiple spray oil duct 3-3 can be had on the wall 11-1 of motor housing side, as illustrated shown in Fig. 2, only drawn three spray oil duct 3-3.
Spray equipment 16 is arranged on the inner surface on motor housing 11 and motor housing side wall 11-1.The cooling oil of spray passes through spray
Oil is sprayed by device 16, and stator core and winding 4, magnet steel 5 and rotor 6 are cooled down.The cooling oil of oil cooling is then by spiral oil
Road 3-4 radiates to motor.Spray cooling oil out enters oil return by the oil return opening 19 positioned at motor housing 11 bottom
In road 3-2, the cooling oil in spiral oil duct 3-4 has also eventually entered in back oil road 3-2.The oil entering back oil road passes through coarse filter
23rd, radiator 24, oil pump 25, fine cleaner 26, exsiccator 27, enter in oil input channel 3-1 again, are circulated next time.Its
Middle coarse filter 23 and fine cleaner 26 are to filter cooling well cuts；Radiator 24 can cool down and absorb the cold of heat
But oil；Exsiccator 27 is to remove cooling water content in oil, in case the performance of impact wheel hub motor.
Air-cooled structure regards from illustrating Fig. 2 and its front view 3 and right view Fig. 4, schematic diagram Fig. 5 and front view 6 and the right side
Can see and ventilation for enclosures mouth 21 is distributed with motor housing 11 also have identical on the wall 7-2 of rotor field spider side in figure Fig. 7 simultaneously
The vent of size, and vent passages 7-1 is had on rotor field spider 7 for ventilation, it is fixedly connected rotor with rotor field spider 7 simultaneously
Also have in rack side wall 7-2 and vent passages 7-1 shape identical vent.Flabellum 22 is installed in vent passages 7-1, with
Accelerate the flowing of air.Vent passages 7-1 is the flowing allowing rotor field spider 7 axially have air, to complete the radiating to it, in order to
Make the ingress of air area of larger-size mid portion bigger, larger vent passages 7-1 can be designed wherein, such as
In schematic diagram Fig. 5 and its front view 6 and right view Fig. 7 shown in the vent passages 7-1 of cylinder of mid portion, to strengthen
Radiating effect.
Embodiment 2
In the above-described embodiment, in the vent passages 7-1 of rotor field spider 7, flabellum 22 is installed, but is not limited to this, can
To save flabellum 22, allow its natural air inlet, structure is as shown in Figure 8.
Embodiment 3
Flabellum 22 can be arranged on the side wall of close motor support axle 10 in vent passages 7-1 in the present embodiment, show
It is intended to as shown in Figure 9.The quantity of flabellum 22 can also be changed according to demand simultaneously.Other structures are identical with said structure,
It will not go into details.
Claims (7)
1. the present invention discloses a kind of employing spraying cooling, the In-wheel motor driving system of air-cooled combination cooling mode, primary structure
Including: oil duct, external stator, internal rotor, motor housing, motor shaft, wheel rim and brake, it is characterized in that: wheel rim directly and turns
Submounts outer wall is connected, and simultaneously further through bearings on motor housing, motor housing is connected with rotor field spider by bearing
Connect, form confined space, be the structure of external stator internal rotor in space, nail is connected on motor housing by alignment pin, turn
Son is directly connected with rotor field spider, and rotor field spider is connected on motor support axle by bearing, and motor support axle passes through double end spiral shell
Post is connected with motor housing, enters oil road and all designs on motor shaft, and cooling oil enters spray oil duct and screw cooling oil road, point
Do not carry out spraying cooling and oil cooling, carry out oil return eventually through oil return opening and back oil road, the cooling oil after circulation is by wheel hub electricity
Coarse filter outside machine, radiator, oil pump, fine cleaner, exsiccator enter to dash forward and circulate next time, and air-cooled structure design is propped up in rotor
Frame, and brake is arranged on outside rotor field spider.
2. the In-wheel motor driving system of employing spraying cooling according to claim 1 and air-cooled combination cooling mode, its
It is characterised by: described spray equipment is distributed in both sides inner surface and the peripheral surface of motor housing, and described spray equipment divides
Cloth pattern and number can require concrete determination according to cooling.
3. the In-wheel motor driving system of employing spraying cooling according to claim 1 and air-cooled combination cooling mode, its
It is characterised by: described rotor field spider internal chamber is designed to be provided with the vent passages of flabellum, and blade construction and number can bases
Cooling requires specific design to determine.
4. the In-wheel motor driving system of employing spraying cooling according to claim 1 and air-cooled combination cooling mode, its
It is characterised by: the cooling oil duct on described motor housing can be the other structures form such as screw type or z font.
5. the In-wheel motor driving system of employing spraying cooling according to claim 1 and air-cooled combination cooling mode, its
It is characterised by: the type of described wheel hub motor can be the motor of the excitation mode such as permanent-magnet synchronous, switching magnetic-resistance, alternating current impression.
6. the In-wheel motor driving system of employing spraying cooling according to claim 1 and air-cooled combination cooling mode, its
It is characterised by: described hub motor structure form can be inner stator outer-rotor structure or internal rotor outer stator structure.
7. the In-wheel motor driving system of employing spraying cooling according to claim 1 and air-cooled combination cooling mode, its
It is characterised by: described brake can be electromagnetic type or fluid pressure type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611064210.2A CN106357053B (en) | 2016-11-28 | 2016-11-28 | A kind of hub motor drive system using spray and air-cooled combination cooling mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611064210.2A CN106357053B (en) | 2016-11-28 | 2016-11-28 | A kind of hub motor drive system using spray and air-cooled combination cooling mode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106357053A true CN106357053A (en) | 2017-01-25 |
| CN106357053B CN106357053B (en) | 2019-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611064210.2A Active CN106357053B (en) | 2016-11-28 | 2016-11-28 | A kind of hub motor drive system using spray and air-cooled combination cooling mode |
Country Status (1)
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075603A (en) * | 2017-12-26 | 2018-05-25 | 清华大学苏州汽车研究院（吴江） | Wheel hub motor |
| CN108128144A (en) * | 2017-12-10 | 2018-06-08 | 山东理工大学 | A kind of In-wheel motor driving wheel equipped with brake apparatus |
| CN108397423A (en) * | 2018-03-31 | 2018-08-14 | 合肥合博机电有限公司 | A kind of air-cooled structure on water pump |
| CN109572388A (en) * | 2018-12-04 | 2019-04-05 | 山东理工大学 | A kind of integrated form is to turning dual rotor motor wheel integral structure |
| CN111869058A (en) * | 2018-03-30 | 2020-10-30 | 本田技研工业株式会社 | Cooling structure of rotating electric machine |
| CN111987844A (en) * | 2020-08-28 | 2020-11-24 | 江苏科技大学 | Self-cooling hub motor heat dissipation mechanism |
| KR20230084794A (en) * | 2021-12-06 | 2023-06-13 | 씨스톤 테크놀로지스(주) | Power transmission device |
| CN118117820A (en) * | 2024-04-29 | 2024-05-31 | 比亚迪股份有限公司 | Actuator, suspension assembly and vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230017961A (en) * | 2021-07-28 | 2023-02-07 | 씨스톤 테크놀로지스(주) | Power transmission device |
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| CN105262280A (en) * | 2015-08-12 | 2016-01-20 | 福安市广源机电有限公司 | Novel internal circulation oil cooling motor |
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| US5600191A (en) * | 1994-12-19 | 1997-02-04 | Yang; Chen-Chi | Driving assembly for motor wheels |
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| CN101327731A (en) * | 2008-07-01 | 2008-12-24 | 西南大学 | Water-cooling electric driven hub |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108128144A (en) * | 2017-12-10 | 2018-06-08 | 山东理工大学 | A kind of In-wheel motor driving wheel equipped with brake apparatus |
| CN108128144B (en) * | 2017-12-10 | 2020-06-09 | 山东理工大学 | Wheel hub motor driving wheel with brake device |
| CN108075603A (en) * | 2017-12-26 | 2018-05-25 | 清华大学苏州汽车研究院（吴江） | Wheel hub motor |
| CN111869058A (en) * | 2018-03-30 | 2020-10-30 | 本田技研工业株式会社 | Cooling structure of rotating electric machine |
| CN111869058B (en) * | 2018-03-30 | 2023-06-09 | 本田技研工业株式会社 | Cooling structure of rotating electric machine |
| CN108397423A (en) * | 2018-03-31 | 2018-08-14 | 合肥合博机电有限公司 | A kind of air-cooled structure on water pump |
| CN109572388A (en) * | 2018-12-04 | 2019-04-05 | 山东理工大学 | A kind of integrated form is to turning dual rotor motor wheel integral structure |
| CN111987844A (en) * | 2020-08-28 | 2020-11-24 | 江苏科技大学 | Self-cooling hub motor heat dissipation mechanism |
| CN111987844B (en) * | 2020-08-28 | 2022-11-29 | 江苏科技大学 | Self-cooling hub motor heat dissipation mechanism |
| KR20230084794A (en) * | 2021-12-06 | 2023-06-13 | 씨스톤 테크놀로지스(주) | Power transmission device |
| KR102622464B1 (en) * | 2021-12-06 | 2024-01-08 | 씨스톤 테크놀로지스(주) | Power transmission device |
| CN118117820A (en) * | 2024-04-29 | 2024-05-31 | 比亚迪股份有限公司 | Actuator, suspension assembly and vehicle |
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