CN106655633A - Novel cooling type in-wheel motor - Google Patents
Novel cooling type in-wheel motor Download PDFInfo
- Publication number
- CN106655633A CN106655633A CN201611046484.9A CN201611046484A CN106655633A CN 106655633 A CN106655633 A CN 106655633A CN 201611046484 A CN201611046484 A CN 201611046484A CN 106655633 A CN106655633 A CN 106655633A
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- China
- Prior art keywords
- stator
- support
- motor
- housing
- flow channel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to a novel cooling type in-wheel motor. A front cover (1) is connected with a housing (2); a rotor (3) is mounted at the inner ring of the housing (2); a bracket (5) is located at the inner ring of the stator (4) so as to support and fix the stator (4); the bracket (5) is connected with a rotation shaft (7) through a bearing (8); the rotation shaft (7) is connected with a rear end cover (6) located at the right side of the motor through a bolt; cooling flow channels (501 and 502) are arranged in the cylindrical bracket (5) of which one end is provided with an end plate; the cooling flow channels (501 and 502) are filled with a cooling medium; the inner wall of a stator core contacts with the outer wall of the cylinder section of the bracket (5); an end portion of a stator winding contacts with the inner upright surface of the end plate of the bracket (5); the cooling flow channel (501) is located in the wall surface of the cylinder section of the bracket; the cooling flow channel (502) is located in the end plate (5002) of the bracket; and the cooling flow channels are communicated with each other through a communication hole. The novel cooling type in-wheel motor of the present invention is particularly applicable to a new energy vehicle motor and an outer rotor motor.
Description
Technical field
The present invention relates to a kind of wheel hub motor using the new type of cooling.
Background technology
At present the type of cooling of motor is mainly by following several：Natural cooling, forced air cooling, liquid are cold, with other cooling sides
Formula is compared, and under equal-wattage grade, the motor cooled down using the cold mode of liquid has a small volume, lightweight advantage, material
Utilization rate is higher.
Motor in running, because copper loss, iron loss and mechanical loss equal loss can produce many heats, in order to dissipate
Heat, prior art typically arranges circulation waterway in the housing of motor, is radiated by the cooling water of circulation waterway.
Most of water-cooled machine of existing market is all housing band circulation waterway, and stator core is contacted with housing, and motor is produced
Raw heat passes to the cooling water of housing circulation waterway by stator core, and by the circulation of cooling water heat is taken away.Above-mentioned
Electromotor cooling system structure, the main stator winding end for producing heat is not directly contacted with the housing with water channel, motor
The heat of generation passed to iron core from winding before this, then passed to the cooling water of circulation waterway by iron core, there is heat transfer
Often, the shortcomings of radiating slow so that radiating efficiency is relatively low, particularly higher to power density external rotor electric machine, radiating
If condition is bad, the service life and rated power of motor can be directly affected, serious can also cause motor burning.
Chinese patent CN201520661652.X, CN201610101197.7 and CN201511019548.1 provide several
The motor of different cooling schemes.
CN201520661652.X provides a kind of water-cooled machine.The utility model is related to field of automobile, tool
Body discloses water-cooled machine, including motor housing and inner bag, and motor housing and inner bag one cast molding；Inner bag is provided with water
Road, twist, the bottom of inner bag is additionally provided with hollow cannelure to water channel, and motor housing is provided with water inlet and outlet, and
Water inlet and outlet are provided in the same side of motor housing, and the position of water inlet is higher than the position of outlet, water inlet
Mouth one end higher with water channel position is connected, and outlet one end relatively low with water channel position is connected.The inner bag of the utility model and
Motor housing one cast molding, sealing property is good, antileaking.Electricity is realized in the cooperation of water inlet and outlet on motor housing
The cooling of machine shell, is conducive to improving the performance of water-cooled machine.But the electric machine structure is inner rotor motor, its type of cooling is not
The wheel hub motor of suitable outer rotor.
CN201610101197.7 discloses a kind of water-cooled machine, including rotor and stator, and the rotor is fixed on center
In rotating shaft, also including hot channel, the rotor includes the first housing for being oppositely arranged and the second housing, first housing and
Magnet is provided with second housing, two Magnet are oppositely arranged with N poles and S poles, and the stator is fixed on described in two
Between Magnet, the stator is embedded with the hot channel.The heat that so stator is received in water-cooled machine running
Directly can be radiated by hot channel, so that the radiating efficiency of water-cooled machine is higher.But the motor is axial magnetic
, its is cold to go mode not to be suitable for radial magnetic field motor, and can not direct chilling temperature highest winding overhang.
CN201511019548.1 disclose it is a kind of reinforcing wheel hub motor heat dispersion device, the two of the stator of the device
Side is provided with groove；Stator heat pipe includes heat absorbing end and radiating end, and heat absorbing end includes the first stator heat pipe and the second stator heat
Pipe；First stator heat pipe and the second stator heat pipe all circumflexion structures, are separately mounted in the groove on the two sides of stator；
The radiating end of stator heat pipe two is all stretched in the stator radiating fin arranged around dead axle；The outer surface of wheel hub motor drive end bearing bracket is provided with
Radiating fin, or it is provided with the radiator structure that radiating fin coordinates with heat pipe；Each salient pole of rotor is provided with least one groove,
Rotor heat pipe is provided with groove.The invention produces the source of heat from wheel hub motor, opens from stator, rotor, motor
The heat of wheel hub motor is comprehensively dispersed into rapidly the external world by three aspects of shell, is reached reinforcing wheel hub motor internal stator, is turned
The effect of son and shell heat dispersion.Although the invention can simultaneously radiate in terms of three, temperature highest winding terminal
Portion directly can not contact with heat abstractor, delay radiating effect, and heat abstractor is complex, and cost is of a relatively high,
The execute-in-place tool that gets up acquires a certain degree of difficulty.
The content of the invention
The purpose of the present invention be overcome the motor heat transfer of prior art often, radiate slow shortcoming, there is provided it is a kind of
Using the wheel hub motor of the new type of cooling.The present invention can improve wheel hub motor radiating condition, improve wheel hub motor torque close
Degree and power density.
To achieve these goals, the present invention provides following technical scheme：
The wheel hub motor of the present invention includes stator and rotor.The rotor is fixed in housing, and housing is by end cap and turns
Axle links together.One end is located at stator inner circle with the columnar support of end plate, stator is played and is supported and fixed work
With.It is provided with support in coolant flow channel, coolant flow channel filled with cooling medium.Stator core inwall connects with the cylindrical section outer wall of support
Touch, stator winding end is contacted with facade in support end plate.Drive end bearing bracket positioned at motor front end is connected with housing.Bearing is installed
In support inner circle, rotating shaft connects together with support by bearing.Rotating shaft is connected by bolt with the rear end cap for being located at motor rear end
It is connected together.
The housing, support, drive end bearing bracket and rear end cap are aluminum alloy material.
The rotor is tightened together by holding cover bolt with rotating shaft.
The stator is combined with certain magnitude of interference with support.
The bearing is arranged on the inner circle of support, and bearing mounting means is combined crosswise mode.
The heat that wheel hub motor of the present invention is produced passes to support simultaneously by stator core and winding overhang, by support
The coolant of portion's coolant flow channel quickly takes away heat.Meanwhile, support is aluminum alloy material, and heat conductivity is far above common iron
Heat conductivity.The electric machine structure causes motor to be more intended to lightweight, and improves the utilization rate of material and the work(of motor
Rate density.
Description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the exploded perspective view of the embodiment of the present invention；
Fig. 3 is the stator and support disassemblying and radiating position schematic diagram of the embodiment of the present invention, and Fig. 3 a are stator, and Fig. 3 b are to prop up
Frame；
Fig. 4 is the structural representation of the support of the embodiment of the present invention, and Fig. 4 a are support front view, and Fig. 4 b are support section view
Figure, Fig. 4 c are support axonometric drawing；
In figure, 1 drive end bearing bracket, 2 housings, 3 rotors, 4 stators, 5 supports, 6 rear end caps, 7 rotating shafts, 8 bearings, 5001 backing holding cylinders
Section outer wall, 5002 support end plates.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention will be further described.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, drive end bearing bracket 1, housing 2, rotor 3, stator 4, support 5, rear end cap 6, rotating shaft 7
And bearing 8 etc. constitutes the motor entirety of wheel hub motor of the present invention.Wherein drive end bearing bracket 1 is located at motor front end, is connected with housing 2；
Rotor 3 is installed on the inner circle of housing 2, and support 5 is located at the inner circle of stator 4, supports and fixed stator 4.Support 5 by bearing 8 with
Rotating shaft 7 links together, and rotating shaft 7 is linked together by bolt with the rear end cap 6 positioned at motor rear end.
Support 5 is cylindrical shape, and one end carries end plate 5002.Coolant flow channel, a part of coolant flow channel 502 are provided with support 5
In support end plate 5002, another part coolant flow channel 501 is located in the cylindrical section wall of support, and two parts coolant flow channel leads to
Cross intercommunicating pore to connect, serial or parallel connection, as shown in Figure 4 b.
Rotor 3 is assemblied in housing 2, there is certain magnitude of interference between rotor 3 and housing 2.Housing 2 with rotor 3 passes through
Rear end cap 6 is tightened together with bolt with rotating shaft 7.The hot jacket of stator 4 on support 5, in stator winding end and support contact surface
Insulation processing is carried out at 5002, then support 5 is linked together with rotating shaft 7 by bearing 8.
The major heat producing components of motor are stator winding, and stator winding temperature highest part is general all at stator winding end
Portion.The stator core inwall of the embodiment of the present invention and the cylindrical section wall contacts of support 5, stator winding end directly with support 5
The interior facade contact of end plate.The heat produced in motor operation course passes to support 5 from stator core and stator winding end
Cylindrical section outer wall 5001 and the end plate 5002 of support 5, and by the cold of the coolant flow channel 502 in the end plate of support 5 and cylindrical section inwall
But the coolant in runner 501 quickly takes away heat, drastically increases the heat-sinking capability of motor, reduces motor temperature rise,
Ensure that motor it is long when stable operation.
Claims (2)
1. a kind of wheel hub motor of novel cooling manner, including drive end bearing bracket (1), housing (2), rotor (3), stator (4), support
(5), rear end cap (6), rotating shaft (7), bearing (8)；Drive end bearing bracket (1) is connected positioned at positioned at motor front end with housing (2), rotor
(3) inner circle of housing (2) is installed on, support (5) is supported and fixed stator (4) positioned at stator (4) inner circle, and support (5) leads to
Cross bearing (8) to link together with rotating shaft (7), rotating shaft (7) is connected to one by bolt with the rear end cap (6) for being located at motor rear end
Rise；The stator includes stator core (401) and stator winding (402), it is characterised in that：One end carries columnar of end plate
It is provided with frame (5) in coolant flow channel (501,502), coolant flow channel (501,502) filled with cooling medium；Stator core inwall with
The cylindrical section wall contacts of frame (5), stator winding end is contacted with facade in support (5) end plate.
2. the wheel hub motor of novel cooling manner according to claim 1, it is characterised in that：Described coolant flow channel
(501) in the cylindrical section wall of support, coolant flow channel (502) is interior positioned at support end plate (5002), two parts coolant flow channel
Connected by intercommunicating pore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611046484.9A CN106655633A (en) | 2016-11-23 | 2016-11-23 | Novel cooling type in-wheel motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611046484.9A CN106655633A (en) | 2016-11-23 | 2016-11-23 | Novel cooling type in-wheel motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106655633A true CN106655633A (en) | 2017-05-10 |
Family
ID=58812826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611046484.9A Pending CN106655633A (en) | 2016-11-23 | 2016-11-23 | Novel cooling type in-wheel motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106655633A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707099A (en) * | 2017-09-28 | 2018-02-16 | 迈格钠磁动力股份有限公司 | A kind of cartridge type liquid cooling permanent-magnetic retarder |
| CN109361291A (en) * | 2018-12-21 | 2019-02-19 | 沈阳工业大学 | Axial segmentation formula outer-rotor permanent magnet motor propeller with the type of cooling in oil |
| CN110022029A (en) * | 2019-04-26 | 2019-07-16 | 贵州航天林泉电机有限公司 | A kind of outer rotor hub motor drive assembly |
| CN110233545A (en) * | 2019-06-21 | 2019-09-13 | 扬州大学 | A kind of multiple stators motor cooling heat radiator |
| CN110311513A (en) * | 2019-08-08 | 2019-10-08 | 哈尔滨理工大学 | A kind of hub motor conductive structure |
| CN110707872A (en) * | 2019-09-30 | 2020-01-17 | 宝能汽车有限公司 | Wheel hub motor and car |
| CN113162266A (en) * | 2021-03-10 | 2021-07-23 | 安徽机电职业技术学院 | Cooling device for automobile hub motor |
| WO2022142498A1 (en) * | 2020-12-30 | 2022-07-07 | 浙江盘毂动力科技有限公司 | Disc motor |
| CN107707099B (en) * | 2017-09-28 | 2024-06-07 | 迈格钠磁动力股份有限公司 | Barrel type liquid cooling permanent-magnet retarder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08322170A (en) * | 1995-05-24 | 1996-12-03 | Hitachi Ltd | Electric rotating machine |
| US20020043881A1 (en) * | 2000-10-17 | 2002-04-18 | Yoshihito Asao | Automotive alternator |
| CN101043169A (en) * | 2006-03-14 | 2007-09-26 | 通用汽车环球科技运作公司 | Method and apparatus for heat removal from electric motor winding end-turns |
| CN204481638U (en) * | 2015-02-11 | 2015-07-15 | 扬州科光技术发展有限公司 | One directly drives wheel hub motor |
-
2016
- 2016-11-23 CN CN201611046484.9A patent/CN106655633A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08322170A (en) * | 1995-05-24 | 1996-12-03 | Hitachi Ltd | Electric rotating machine |
| US20020043881A1 (en) * | 2000-10-17 | 2002-04-18 | Yoshihito Asao | Automotive alternator |
| CN101043169A (en) * | 2006-03-14 | 2007-09-26 | 通用汽车环球科技运作公司 | Method and apparatus for heat removal from electric motor winding end-turns |
| CN204481638U (en) * | 2015-02-11 | 2015-07-15 | 扬州科光技术发展有限公司 | One directly drives wheel hub motor |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707099A (en) * | 2017-09-28 | 2018-02-16 | 迈格钠磁动力股份有限公司 | A kind of cartridge type liquid cooling permanent-magnetic retarder |
| CN107707099B (en) * | 2017-09-28 | 2024-06-07 | 迈格钠磁动力股份有限公司 | Barrel type liquid cooling permanent-magnet retarder |
| CN109361291A (en) * | 2018-12-21 | 2019-02-19 | 沈阳工业大学 | Axial segmentation formula outer-rotor permanent magnet motor propeller with the type of cooling in oil |
| CN110022029A (en) * | 2019-04-26 | 2019-07-16 | 贵州航天林泉电机有限公司 | A kind of outer rotor hub motor drive assembly |
| CN110233545A (en) * | 2019-06-21 | 2019-09-13 | 扬州大学 | A kind of multiple stators motor cooling heat radiator |
| CN110233545B (en) * | 2019-06-21 | 2024-02-02 | 扬州大学 | Cooling and radiating device for multi-stator motor |
| CN110311513A (en) * | 2019-08-08 | 2019-10-08 | 哈尔滨理工大学 | A kind of hub motor conductive structure |
| CN110707872A (en) * | 2019-09-30 | 2020-01-17 | 宝能汽车有限公司 | Wheel hub motor and car |
| CN110707872B (en) * | 2019-09-30 | 2021-03-23 | 宝能汽车集团有限公司 | Wheel hub motor and car |
| WO2022142498A1 (en) * | 2020-12-30 | 2022-07-07 | 浙江盘毂动力科技有限公司 | Disc motor |
| CN113162266A (en) * | 2021-03-10 | 2021-07-23 | 安徽机电职业技术学院 | Cooling device for automobile hub motor |
| CN113162266B (en) * | 2021-03-10 | 2023-07-25 | 安徽机电职业技术学院 | Cooling device for automobile hub motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |