CN206180780U - In -wheel motor conduction oil atomization cooling structure - Google Patents
In -wheel motor conduction oil atomization cooling structure Download PDFInfo
- Publication number
- CN206180780U CN206180780U CN201621267812.3U CN201621267812U CN206180780U CN 206180780 U CN206180780 U CN 206180780U CN 201621267812 U CN201621267812 U CN 201621267812U CN 206180780 U CN206180780 U CN 206180780U
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- Prior art keywords
- motor
- cooling
- motor housing
- stator coil
- cavity
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- 238000001816 cooling Methods 0.000 title claims abstract description 76
- 238000000889 atomisation Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 241000239290 Araneae Species 0.000 claims description 6
- 239000006071 cream Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 239000006199 nebulizer Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009826 distribution Methods 0.000 abstract description 4
- 239000002826 coolant Substances 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 52
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000013019 agitation Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229940008099 dimethicone Drugs 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 238000002663 nebulization Methods 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model provides an in -wheel motor conduction oil atomization cooling structure, include: motor housing, install the inboard stator coil at motor housing, and install in the motor housing inboard and can wind the rotatory rotor of stator coil, install water cooling jacket between motor housing and the stator coil, be provided with the cooling cavity between stator coil and the rotor, the last electric machine control box of installing of motor housing, oiling mouth set up and communicate on the electric machine control box and with the cooling cavity, and atomizing device installs the bottom at the cooling cavity. This in -wheel motor conduction oil atomization cooling structure passes through atomizing device and cools off the cavity with coolant oil atomizing and injection, the inside thermal resistance of part and the motor cavity of effectively having reduced to generate heat, and even motor cavity internal temperature distribution has eliminated hot spot, has improved whole radiating effect, increases motor life.
Description
Technical field
This utility model belongs to motor cooling technology field, and in particular to a kind of wheel hub motor heat conduction oil atomization cooling knot
Structure.
Background technology
With the development of New-energy electric vehicle and mixed dynamic technology, the In-wheel motor driving mode of compact efficient is subject to gradually
Favor, the pursuit to the ultimate attainment power performance of automobile causes wheel hub motor power more and more higher, therefore the used heat that motor is produced is corresponding
Raising (3%-5% of general power), if these used heat timely and effective can not spill into environment, can cause motor internal heat gather
Collection and produce high temperature, the temperature inside wheel hub motor is too high to cause coil insulation to be destroyed, permanent magnet irreversible demagnetization
Etc. consequence, this will substantially reduce the life-span of wheel hub motor, the safety of automobile be affected, so wheel hub motor internal temperature must be controlled
System is in the range of allowing.Because wheel hub motor is fit directly on wheel, limited by assembly space, its volume can not be with
The heart is intended to increase, and hub shell both sides need motor body assembling supporting construction and wheel, merely will by case surface radiating
The amount that heat sheds is very limited, therefore the radiating requirements of wheel hub motor are increasingly highlighted.
Now for the high power wheel hub motor of more than 20kW, Forced water cooling radiating mode is generally employed, in the hope of obtaining
Excellent heat dispersion, general water collar is arranged between wheel hub motor perimetral housings and stator, more traditional radial direction magnetic
Logical wheel hub motor, its stator coil plane is parallel with axle, and its radial dimension very little, coil is wrapped on stalloy, and stator is fixed
On perimetral housings, under circumference water collar cooling effect, stator can preferably obtain cooling effect to this structure.In recent years
Come, be to obtain higher moment of torsion, radial flux wheel hub motor has the trend for slowly being replaced by axial magnetic flux wheel hub motor, and this
Motor stator is typically located at rotor inner side (relative rotor is in outside), to improve electric efficiency, under this stator structure,
Stator coil only has fixing end to contact with motor housing circumference water collar, and other parts are hanging, the heat production of its proximal ends, Zhi Nengyi
Distal shaft end is delivered to by heat-conducting mode, water-cooling is carried out, but the paraxial side of this structure stator and distal shaft side (the i.e. footpath of stator
To) size is larger, thus results in that stator coil radial symmetry gradient is larger, this given subcoil causes the safety of local overheating
Hidden danger.
Utility model content
To solve the deficiencies in the prior art, the utility model proposes a kind of wheel hub motor heat conduction oil atomization cooling structure, has
Effect reduces heat generating components and its machine cavity internal thermal resistance, and uniform machine cavity interior temperature distribution eliminates hot spot, improves
Integral heat sink effect, increases motor service life.
To realize above-mentioned technical proposal, this utility model provides a kind of wheel hub motor heat conduction oil atomization cooling structure, bag
Include：Motor housing；Stator coil on the inside of motor housing；And installed in motor housing inner side and can be around stator coil
The rotor of rotation, is provided with water collar between the motor housing and stator coil, arrange between the stator coil and rotor
There is cooling cavity, motor control box is installed on the motor housing, pouring orifice is arranged on motor control box and empty with cooling
Chamber connects, and atomising device is arranged on the bottom of cooling cavity.
In above-mentioned technical proposal, a small amount of cooling can be directly added into toward in the cooling cavity of wheel hub motor by pouring orifice
Oil, the cooling oil can be that either dimethicone or low boiling mineral oil (are required transformer oil：Insulation, possesses preferably
Heat conductivility), the cooling oil of addition is gathered in the bottom of cooling cavity, and the amount of the concrete addition of cooling oil with rotor not contacting
Or a small amount of contact is advisable, during avoiding running up rotor, rotation of the cooling oil to rotor causes larger resistance, motor
In the course of work, atomising device breaks up cooling oil for mist of oil, and under rotor disturbance, full of whole cooling cavity, little oil droplet is attached
On stator coil, volatilization is accelerated under air agitation and coil heats dual function, vaporizing oil-gas are outside motor
Cooling on water collar on the inside of shell is condensed into oil droplet, is back to cooling cavity bottom, completes a radiating circulation.Dissipate in actual
In thermal process, cooling oil realizes heat convection except contacting with heat generating components, and cooling oil is under atomizing it also occur that certain
The phase transformation of probability, further improves utilization and the heat exchanger efficiency of cooling oil.By this radiator structure, can also effectively eliminate in motor
Hot spot on portion's stator, uniform inside cavity temperature, because the heat conductivility of cooling oil is far above air, cooling oil is by stator line
The heat that circle is produced fast and effectively is delivered on motor housing, and the radiating knot such as fan, fin can also be installed on motor housing
Structure, can effectively improve wheel hub motor integral heat sink ability.
Preferably, the atomising device is mechanical atomizer or ultrasonic atomization piece.Mechanical atomizer can be directly cold
But oil atomization, nebulization efficiency is high, but manufacture and operating cost are higher.Ultrasonic atomization piece can break up cooling oil for oil
Mist, the effect of atomization is slightly worse, but the cost of manufacture and operation is relatively low.
Preferably, the rotor includes rotor field spider, is provided with the inside of the rotor field spider symmetrical with regard to stator coil
The permanent magnet of distribution.
Preferably, the bottom of the cooling cavity is provided with shoe cream room, and oil storage intracavity is provided with oil controller.Pass through
Oil controller can supplement or change the cooling oil mass in cooling cavity, preferably to regulate and control motor radiating efficiency.
The beneficial effect of a kind of wheel hub motor heat conduction oil atomization cooling structure that this utility model is provided is：This wheel hub electricity
Machine heat conduction oil atomization cooling structure is taken to the heat that coil of stator of motor is produced outside motor using cooling oil phase-change heat-exchange mechanism
Shell carries out radiating and instead of the heat band that inner air convection type can only be utilized to produce stator coil in traditional heat-dissipating structure
Radiate on shell, exchanged heat using the latent heat of Working fluid phase changing process, the efficiency of conduction of heat is improve, effectively by stator line
The heat that circle is produced takes other radiator structures arranged on motor housing, then Jing motor housings to and spills into this partial heat
Environment, effectively reduces heat generating components and its inside cavity thermal resistance, and uniform machine cavity interior temperature distribution eliminates hot spot,
Integral heat sink effect is improve, increases motor service life.
Description of the drawings
Fig. 1 is sectional view of the present utility model.
Fig. 2 is right view of the present utility model.
In figure：1st, motor control box；2nd, pouring orifice；3rd, stator coil；4th, water collar；5th, permanent magnet；6th, rotor field spider；
7th, atomising device；8th, motor housing；9th, cooling oil；10th, rotor；11st, cavity is cooled down.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clear, complete description, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole
Embodiment.The every other embodiment that this area ordinary person is obtained under the premise of creative work is not made, belongs to
Protection domain of the present utility model.
Embodiment：A kind of wheel hub motor heat conduction oil atomization cooling structure.
Shown in seeing figures.1.and.2, a kind of wheel hub motor heat conduction oil atomization cooling structure, including：Motor housing 8；It is arranged on
The stator coil 3 of the inner side of motor housing 8；And installed in the inner side of motor housing 8 and can around the rotor 10 of the rotation of stator coil 3,
Water collar 4 is installed between the motor housing 8 and stator coil 3, cooling is provided between the stator coil 3 and rotor 10
Cavity 11, is provided with motor control box 1 on the motor housing 8, pouring orifice 2 is arranged on motor control box 1 and empty with cooling
Chamber 11 connects, and atomising device 7 is arranged on the bottom of cooling cavity 11.
This utility model operation principle be：Can directly be added toward in the cooling cavity 11 of wheel hub motor by pouring orifice 2
Enter a small amount of cooling oil 9, the cooling oil 9 can be that either dimethicone or low boiling mineral oil (are required transformer oil：Absolutely
Edge, possesses preferable heat conductivility), the cooling oil 9 of addition is gathered in the bottom of cooling cavity 11, what cooling oil 9 was specifically added
Amount is advisable with not contacting with rotor 10 or contacting on a small quantity, and during avoiding running up rotor 10, cooling oil 9 is to rotor 10
Rotation causes larger resistance, and in the motor course of work, atomising device 7 is atomized cooling oil 9, in the case where rotor 10 is disturbed, is full of
Whole cooling cavity 11, the oil droplet after atomization is attached on stator coil 3, adds under air agitation and coil heats dual function
Speed volatilization, vaporizing oil-gas cooling on the water collar 4 of the inner side of motor housing 8 is condensed into oil droplet, is back to cooling cavity 11 bottom,
Complete a radiating circulation.In actual radiation processes, cooling oil 9 realizes heat convection except contacting with heat generating components, cold
But oil 9 also occurs that the phase transformation of certain probability under atomizing, further improves utilization and the heat exchanger efficiency of cooling oil 9.It is logical
This radiator structure is crossed, the hot spot on motor internal stator coil 3, uniform inside cavity temperature, due to cooling can be also effectively eliminated
The heat conductivility of oil 9 is far above air, and the heat that cooling oil 9 produces stator coil 3 is fast and effectively delivered to motor housing
On 8, the radiator structures such as fan, fin can also be installed on motor housing 8, wheel hub motor integral heat sink ability can be effectively improved.
In the present embodiment, the atomising device 7 is mechanical atomizer or ultrasonic atomization piece.Mechanical atomizer can be straight
Connect and be atomized cooling oil 9, nebulization efficiency is high, but manufacture and operating cost are higher.Ultrasonic atomization piece can be by cooling oil 9 dozens
Dissipate for mist of oil, the effect of atomization is slightly worse, but manufacture and the cost that runs are relatively low.
With reference to shown in Fig. 1, the rotor 10 includes rotor field spider 6, and the inner side of the rotor field spider 6 is provided with regard to stator
The symmetrical permanent magnet 5 of coil 3.
In the present embodiment, the bottom of the cooling cavity 11 is provided with shoe cream room, and oil storage intracavity is provided with fuel-flow control dress
Put.The cooling oil mass in cooling cavity 11 can be supplemented or change by oil controller, preferably to regulate and control motor
Radiating efficiency.
The above be preferred embodiment of the present utility model, but this utility model should not be limited to the embodiment and
Accompanying drawing disclosure of that, thus it is every without departing from the equivalent or modification completed under spirit disclosed in the utility model, all fall
Enter the scope of this utility model protection.
Claims (4)
1. a kind of wheel hub motor heat conduction oil atomization cooling structure, including：Motor housing；Stator line on the inside of motor housing
Circle；And installed in motor housing inner side and the rotor that can rotate around stator coil, it is characterised in that：The motor housing with it is fixed
Water collar is installed between subcoil, cooling cavity is provided between the stator coil and rotor, pacify on the motor housing
Equipped with motor control box, pouring orifice is arranged on motor control box and connects with cooling cavity, and it is empty that atomising device is arranged on cooling
The bottom in chamber.
2. wheel hub motor heat conduction oil atomization cooling structure as claimed in claim 1, it is characterised in that：The atomising device is machine
Tool nebulizer or ultrasonic atomization piece.
3. wheel hub motor heat conduction oil atomization cooling structure as claimed in claim 1, it is characterised in that：The rotor includes rotor
Support, is provided with regard to the symmetrical permanent magnet of stator coil on the inside of the rotor field spider.
4. wheel hub motor heat conduction oil atomization cooling structure as claimed in claim 1, it is characterised in that：The bottom of the cooling cavity
Portion is provided with shoe cream room, and oil storage intracavity is provided with oil controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621267812.3U CN206180780U (en) | 2016-11-23 | 2016-11-23 | In -wheel motor conduction oil atomization cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621267812.3U CN206180780U (en) | 2016-11-23 | 2016-11-23 | In -wheel motor conduction oil atomization cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206180780U true CN206180780U (en) | 2017-05-17 |
Family
ID=58687173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621267812.3U Active CN206180780U (en) | 2016-11-23 | 2016-11-23 | In -wheel motor conduction oil atomization cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206180780U (en) |
Cited By (2)
| 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 |
| CN114915125A (en) * | 2022-06-13 | 2022-08-16 | 瑞昌市森奥达科技有限公司 | Low-voltage large-current motor stator coil heating device |
-
2016
- 2016-11-23 CN CN201621267812.3U patent/CN206180780U/en active Active
Cited By (3)
| 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 |
| CN114915125A (en) * | 2022-06-13 | 2022-08-16 | 瑞昌市森奥达科技有限公司 | Low-voltage large-current motor stator coil heating device |
| CN114915125B (en) * | 2022-06-13 | 2023-06-16 | 瑞昌市森奥达科技有限公司 | Stator coil heating device of low-voltage high-current motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20240722 Granted publication date: 20170517 |