CN107317432A - A kind of electric car water cooling plant - Google Patents
A kind of electric car water cooling plant Download PDFInfo
- Publication number
- CN107317432A CN107317432A CN201610270963.2A CN201610270963A CN107317432A CN 107317432 A CN107317432 A CN 107317432A CN 201610270963 A CN201610270963 A CN 201610270963A CN 107317432 A CN107317432 A CN 107317432A
- Authority
- CN
- China
- Prior art keywords
- water
- cooling
- electric car
- radiator
- water cooling
- Prior art date
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 194
- 238000001816 cooling Methods 0.000 title claims abstract description 72
- 239000000498 cooling water Substances 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000036760 body temperature Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- 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
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The invention discloses a kind of electric car water cooling plant, including water-cooled machine, water-cooled machine includes motor body and is arranged at the water cooling box of motor body bottom, the interior impeller being arranged on the motor shaft of motor body of water cooling box；Water cooling box is additionally provided with water inlet and delivery port；Radiator, water-cooled machine top is arranged at by outrigger, and radiator includes radiator fan and the cooling water tank adjacent with radiator fan, and cooling water tank is provided with water inlet end and water side；Delivery port is connected with water inlet end, and water side is connected with water inlet.Water with heat is flow at water inlet end under the drive of impeller by delivery port, subsequently into cooling water tank, radiator fan cools cooling water tank, namely the water radiated in water cooling is cooled, the water after cooling under gravity, flows out water side, it is revert to by water inlet in water cooling box, which forms a down cycles, the function of circulation temperature lowering is realized, motor can be made to be always held under the bad border of a low temperature and worked.
Description
Technical field
The present invention relates to electric automobiles, more particularly to a kind of electric car water cooling plant.
Background technology
Electric car is during work, and the output of whole power both is from motor, and motor exists
During long-play, stator and rotor heating heating inner air cause whole motor
One kind is for high temperature transition, motor bearings also prolonged high temperature operation, and this is easy for causing electricity
Machine answers temperature too high and produces damage, seriously reduces the operating efficiency of motor.Especially when electronic
Car in the case that ambient temperature is also higher when working, and the temperature work of motor directly affects electricity
The safety traffic of motor-car.
The content of the invention
It is an object of the invention to provide a kind of electric car water cooling plant, the function with circulation temperature lowering,
Motor can be made to be always held under the bad border of a low temperature to work.
In order to solve the above technical problems, the present invention provides a kind of electric car water cooling plant, including：
Water-cooled machine, the water-cooled machine includes motor body and is arranged at the motor body bottom
The leaf on the motor shaft of the motor body is arranged in the water cooling box in portion, the water cooling box
Wheel；The water cooling box is additionally provided with water inlet and delivery port；
Radiator, the radiator is arranged at the water-cooled machine top by outrigger, described to dissipate
Hot device includes radiator fan and the cooling water tank adjacent with the radiator fan, the cooling water tank
Provided with water inlet end and water side；The side wall of cooling water tank one, which is additionally provided with, to be used for the radiating
Being provided with the retaining mouthful added water in water tank, the retaining mouthful is used for retaining switch cover；
The delivery port is connected with the water inlet end, and the water side is connected with the water inlet.
Preferably, in addition to for controlling the control module of the water-cooled machine running status, institute
Stating control module includes setting endothermic water tank in the inner, endothermic water tank's bottom sidewall and institute
Delivery port connection is stated, endothermic water tank's top sidewall is connected with the water inlet end.
Preferably, endothermic water tank's bottom sidewall is connected with the delivery port by outlet pipe.
Preferably, endothermic water tank's top sidewall is connected with the water inlet end by transition conduit.
Preferably, the water side is connected with the water inlet by return pipe.
Preferably, the control module also includes the flow control being arranged in the endothermic water tank
Device.
Preferably, in addition to support body, the support body includes riser and affixed is arranged at the riser
The support beam of top side, the water-cooled machine and control module side wall is affixed is arranged at institute
State on riser, the radiator is affixed to be arranged at the top of the support beam.
Preferably, affixed on the riser to be provided with electric machine support, the water-cooled machine passes through institute
State on the affixed setting riser of electric machine support.
Preferably, the quantity of the support beam is many, and the radiator is affixed to be arranged at many
In the support beam.
Preferably, the control module top side wall and bottom are equipped with installation sheet, installation sheet
Provided with multiple bolts hole, the control module in bolt hole by setting bolt to consolidate with the riser
Connect.
Electric car water cooling plant provided by the present invention, including water-cooled machine and radiator, water cooling
Motor includes motor body and is arranged at motor body bottom water cooling box, and radiator includes radiation air
Fan and the cooling water tank adjacent with radiator fan, and the delivery port and radiator fan of water cooling box
Water inlet end is connected, and the water side of radiator fan is connected with the water inlet of water cooling box, and this just makes its shape
Into a complete path.
In the course of the work, motor body can produce larger heat during operation, if
The water being placed in the water cooling box of motor body bottom can be by the principle of heat transfer, by motor body
The heat absorption distributed, the water with heat is flow under the drive of impeller by delivery port
At water inlet end, subsequently into cooling water tank, radiator fan cools cooling water tank, that is,
The water cooling that will be radiated in water cooling, the water after cooling under gravity, flows out water side,
It is revert to by water inlet in water cooling box, which forms a down cycles.Realizing has
The function of circulation temperature lowering, can be such that motor is always held under the bad border of a low temperature and work.
Brief description of the drawings
In order to illustrate the embodiments of the present invention more clearly, it will use below required in embodiment
Accompanying drawing do simple introduction, it should be apparent that, drawings in the following description be only the present invention
Some embodiments, for those of ordinary skill in the art, do not paying creative work
On the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is electric car water cooling plant overall structure diagram provided by the present invention；
Fig. 2 is electric car water cooling plant structure elevational schematic view provided by the present invention.
In accompanying drawing, 1 is water-cooled machine, and 11 be water cooling box, and 111 be water inlet, and 112 be water outlet
Mouthful, 2 be radiator, and 21 be cooling water tank, and 211 be retaining switch cover, and 212 be water side,
213 be water inlet end, and 22 be radiator fan, and 3 be control module, and 41 be return pipe, and 42 be
Water pipe, 43 be transition conduit, and 51 be riser, and 511 be electric machine support, and 52 be support beam.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical side in the embodiment of the present invention
Case is clearly and completely described, it is clear that described embodiment is only the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
Technical staff is not under the premise of creative work is made, the every other embodiment obtained,
Belong to the scope of the present invention.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawings
The present invention is described in further detail with embodiment.
A kind of electric car water cooling plant provided by the present invention, including：
Water-cooled machine 1, the water-cooled machine 1 includes motor body and is arranged at the motor sheet
The electricity of the motor body is arranged in the water cooling box 11 of body bottom, the water cooling box 11
Impeller on arbor；The water cooling box 11 is additionally provided with water inlet 111 and delivery port 112；
Radiator 2, the radiator 2 is arranged at the top of water-cooled machine 1 by outrigger,
The radiator 2 includes radiator fan 22 and the cooling water tank adjacent with the radiator fan 22
21, the cooling water tank 21 is provided with water inlet end 213 and water side 212；The cooling water tank 21
One side wall is additionally provided with the retaining mouthful for being added water into the cooling water tank 21, the retaining mouthful
Place, which is provided with, is used for retaining switch cover 221；
The delivery port 112 is connected with the water inlet end 213, the water side 212 with it is described
Water inlet 111 is connected.
Wherein, it will be appreciated by persons skilled in the art that retaining mouthful is used for water cooling box 11
Inside add water, water under gravity, flows out from water side 212, is flowed into from water inlet 111
In water cooling box 11.After the completion of adding water, by retaining switch cover 221, retaining mouthful is closed.
Wherein, impeller is because being arranged on motor shaft, therefore when motor body works, motor shaft
Can impeller rotation, being rotated in water cooling box 11 for impeller produce centrifugal force, by water from water cooling
Delivery port 112 is pushed into case 11, is flowed out from delivery port 112, is then flowed by water inlet end 213
Enter in cooling water tank 21.
Electric car water cooling plant provided by the present invention, including water-cooled machine 1 and radiator 2,
Water-cooled machine 1 includes motor body and is arranged at motor body bottom water cooling box 11, radiator 2
Including radiator fan 22 and the cooling water tank 21 adjacent with radiator fan 22, and water cooling box 11
Delivery port 112 connected with the water inlet end 213 of radiator fan 22, the water outlet of radiator fan 22
End 212 is connected with the water inlet 111 of water cooling box 11, and this just forms it into a complete loop.
In the course of the work, motor body can produce larger heat during operation, if
The water being placed in the water cooling box 11 of motor body bottom can be by the principle of heat transfer, by motor sheet
The heat absorption that body is distributed, the water with heat passes through delivery port 112 under the drive of impeller
It flow at water inlet end 213, subsequently into cooling water tank 21, radiator fan 22 will radiate
Water tank 21 cools, that is, the water radiated in water cooling is cooled, work of the water after cooling in gravity
Under, water side 212 is flowed out, is revert to by water inlet 111 in water cooling box 11, this is with regard to shape
Into a down cycles.
In a specific embodiment of the invention, in addition to for controlling the water-cooled machine 1 to run
The control module 3 of state, the control module 3 includes setting endothermic water tank in the inner, institute
State endothermic water tank's bottom sidewall to connect with the delivery port 112, endothermic water tank's top sidewall
Connected with the water inlet end 213.Control module 3 is used to control the unlatching of water-cooled machine 1, closed
Close with have in all working conditions such as running speed, therefore control module 3 certain circuit and
Circuit board, after these electronic component working times are longer, can also produce substantial amounts of heat, when
Temperature is high just to would tend to occur the situation generation that electronic component is burnt out to certain degree, therefore logical
Cross and endothermic water tank is set in control module 3, can be by produced heat absorption.Worked
Water in Cheng Zhong, water cooling box 11 is flowed out in the presence of impeller by delivery port 112, is entered
In endothermic water tank, the high temperature produced by control module 3 is absorbed.Because impeller is ceaselessly working,
Therefore delivery port 112 also can continual outside flowing water, therefore water level in endothermic water tank also exists
Constantly rise, then flows out from endothermic water tank's top sidewall, is flowed into and dissipated by water inlet end 213
Cool in boiler 21.Temperature at control module 3 just also can be always maintained at low temperature by this
State, further improves the security of product and the stability of motor body work.
In order to further optimize above-described embodiment, endothermic water tank's bottom sidewall and the water outlet
Mouth 112 is connected by outlet pipe 42.It will be appreciated by persons skilled in the art that water-cooled machine
1 with control module 3 since it is desired that the adjustment on some positions can be made, therefore when water cooling electricity
Machine 1 and control module 3 apart from it is more remote when, and in the case of directly can not producing connection,
Endothermic water tank bottom can be connected with delivery port 112 by setting outlet pipe 42.Further carry
The high use scope of product.
Further, endothermic water tank's top sidewall passes through transition conduit with the water inlet end 213
43 connections.When endothermic water tank and cooling water tank 21 are distant, it can be incited somebody to action by transition conduit 43
Endothermic water tank's top sidewall is connected with water inlet end 213.
Again further, the water side 212 passes through return pipe 41 with the water inlet 111
Connection.When endothermic water tank and water cooling box 11 have a certain distance, return pipe 41 can be passed through
Water side 212 is connected with water inlet 111.
In a specific embodiment of the invention, the control module 3 also includes being arranged at the suction
Volume control device in boiler.It should be noted that volume control device is used to control to inhale
The flowing velocity of water in boiler, when product ambient temperature is higher, it is necessary to by motor body temperature
Degree and the temperature fast cooling of control module 3, can control water velocity by volume control device
Accelerate.When product ambient temperature is relatively low, and need not be by motor body temperature and control module
3 temperature reduce or not needed fast cooling, by volume control device current can be controlled to keep
Appropriate flowing velocity.
In a specific embodiment of the invention, in addition to support body, the support body includes riser 51
With the affixed support beam 52 for being arranged at the top side of riser 51, the He of water-cooled machine 1
The side wall of control module 3 is affixed to be arranged on the riser 51, and the radiator 2 is affixed to be set
It is placed in the top of support beam 52.Support is used for product is affixed, it is to avoid product is in electronic garage
During entering, the situation for displacement occur or dropping occurs.Wherein, support beam 52 can be effective
By the affixed top for being arranged at water-cooled machine 1 of radiator 2, when radiator 2 is arranged at water cooling
During the top of motor 1, water just can be flowed into water from cooling water tank 21 under gravity
In ice chest 11.
Affixed on above-described embodiment, the riser 51 motor branch is provided with order to further optimize
Frame 511, the water-cooled machine 1 sets the riser 51 by the way that the electric machine support 511 is affixed
On.It will be appreciated by persons skilled in the art that water-cooled machine 1 itself has certain weight,
And also into cylinder, therefore it is not to be particularly easy to be fixed, therefore by setting electric machine support
511, simply water-cooled machine 1 can be fixed, and therefore electric machine support 511 is intermediate recess
Both sides are higher, therefore can fix water-cooled machine 1, it is to avoid electric car occurs during advancing
Water-cooled machine 1 is rolled or the situation of displacement occurs.
Further, the quantity of the support beam 52 is many, and the radiator 2 is affixed to be set
It is placed in many support beams 52.It will be appreciated by persons skilled in the art that radiator 2
Itself there is certain weight, and the also weight of water, thus it is settable many with support frame,
Common support radiator 2, further improves the security of product.
In the present embodiment, a kind of specific fixed form of control module 3, the control are also disclosed
The top side wall of molding block 3 and bottom are equipped with installation sheet, and installation sheet is provided with multiple bolts hole,
The control module 3 in bolt hole by setting bolt and the riser 51 affixed.By in control
The top side wall of molding block 3 and bottom set installation sheet, pass through the bolt hole and bolt on installation sheet
Cooperation, control module 3 is fixed on riser 51.In fixation procedure, first by bolt
Through bolt hole, the top of bolt is entered in riser 51.
Electric car water cooling plant provided by the present invention, including water-cooled machine 1 and radiator 2,
Water-cooled machine 1 includes motor body and is arranged at motor body bottom water cooling box 11, radiator 2
Including radiator fan 22 and the cooling water tank 21 adjacent with radiator fan 22, and water cooling box 11
Delivery port 112 connected with the water inlet end 213 of radiator fan 22, the water outlet of radiator fan 22
End 212 is connected with the water inlet 111 of water cooling box 11, and this just forms it into a complete path.
In the course of the work, motor body can produce larger heat during operation, if
The water being placed in the water cooling box 11 of motor body bottom can be by the principle of heat transfer, by motor sheet
The heat absorption that body is distributed, the water with heat passes through delivery port 112 under the drive of impeller
It flow at water inlet end 213, subsequently into cooling water tank 21, radiator fan 22 will radiate
Water tank 21 cools, that is, the water radiated in water cooling is cooled, work of the water after cooling in gravity
Under, water side 212 is flowed out, is revert to by water inlet 111 in water cooling box 11, this is with regard to shape
Into a down cycles.The function with circulation temperature lowering is realized, motor can be made to protect always
Hold and worked under the bad border of a low temperature.
Electric car water cooling plant provided by the present invention is described in detail above.Herein
Apply specific case to be set forth the principle and embodiment of the present invention, above example
Explanation be only intended to help to understand the method and its core concept of the present invention.It should be pointed out that pair
For those skilled in the art, under the premise without departing from the principles of the invention,
Some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into the present invention
In scope of the claims.
Claims (10)
1. a kind of electric car water cooling plant, it is characterised in that including：
Water-cooled machine (1), the water-cooled machine (1) includes motor body and is arranged at described
The electricity is arranged in the water cooling box (11) of motor body bottom, the water cooling box (11)
Impeller on the motor shaft of machine body；The water cooling box (11) be additionally provided with water inlet (111) and
Delivery port (112)；
Radiator (2), the radiator (2) is arranged at the water-cooled machine (1) by outrigger
Top, the radiator (2) include radiator fan (22) and with the radiator fan (22)
Adjacent cooling water tank (21), the cooling water tank (21) is provided with water inlet end (213) and goes out
Water end (W.E.) (212)；The side wall of cooling water tank (21) one, which is additionally provided with, to be used for the water of radiation
Being provided with the retaining mouthful added water in case (21), the retaining mouthful is used for retaining switch cover (221)；
The delivery port (112) connects with the water inlet end (213), the water side (212)
Connected with the water inlet (111).
2. electric car water cooling plant as claimed in claim 1, it is characterised in that also include
Control module (3) for controlling the water-cooled machine (1) running status, the control module
(3) include setting endothermic water tank in the inner, endothermic water tank's bottom sidewall and the water outlet
Mouth (112) connection, endothermic water tank's top sidewall is connected with the water inlet end (213).
3. electric car water cooling plant as claimed in claim 2, it is characterised in that the suction
Boiler bottom sidewall is connected with the delivery port (112) by outlet pipe (42).
4. electric car water cooling plant as claimed in claim 3, it is characterised in that the suction
Hot water tank top side wall is connected with the water inlet end (213) by transition conduit (43).
5. electric car water cooling plant as claimed in claim 4, it is characterised in that it is described go out
Water end (W.E.) (212) is connected with the water inlet (111) by return pipe (41).
6. the electric car water cooling plant as described in claim 2-5 any one, it is characterised in that
The control module (3) also includes the volume control device being arranged in the endothermic water tank.
7. electric car water cooling plant as claimed in claim 6, it is characterised in that also include
Support body, the support body include riser (51) and it is affixed be arranged at the riser (51) top one
The support beam (52) of side, the water-cooled machine (1) and the control module (3) side wall are affixed
It is arranged on the riser (51), the radiator (2) is affixed to be arranged at the support beam (52)
Top.
8. electric car water cooling plant as claimed in claim 7, it is characterised in that described perpendicular
Affixed on plate (51) to be provided with electric machine support (511), the water-cooled machine (1) is by described
Electric machine support (511) is affixed to be set on the riser (51).
9. electric car water cooling plant as claimed in claim 8, it is characterised in that the branch
The quantity for supportting beam (52) is many, and the radiator (2) is affixed to be arranged at many supports
On beam (52).
10. electric car water cooling plant as claimed in claim 9, it is characterised in that the control
Molding block (3) top side wall and bottom are equipped with installation sheet, and installation sheet is provided with multiple bolts hole,
The control module (3) in bolt hole by setting bolt and the riser (51) affixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270963.2A CN107317432A (en) | 2016-04-27 | 2016-04-27 | A kind of electric car water cooling plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270963.2A CN107317432A (en) | 2016-04-27 | 2016-04-27 | A kind of electric car water cooling plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107317432A true CN107317432A (en) | 2017-11-03 |
Family
ID=60184420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610270963.2A Pending CN107317432A (en) | 2016-04-27 | 2016-04-27 | A kind of electric car water cooling plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107317432A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109219322A (en) * | 2018-11-06 | 2019-01-15 | 江苏卡威汽车工业集团股份有限公司 | A kind of pure electric automobile high-efficiency water cooling heat sink |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB257974A (en) * | 1925-05-12 | 1926-09-13 | Enclosed Motor Company Ltd | Improvements relating to the cooling of dynamo electric and other machines |
| CN1138770A (en) * | 1995-02-06 | 1996-12-25 | 运载器有限公司 | Fuzzy logic control of liquid injection for motor cooling |
| CN101350544A (en) * | 2008-07-30 | 2009-01-21 | 无锡开普动力有限公司 | Water cooling electric machine for vehicle |
| CN205753848U (en) * | 2016-04-27 | 2016-11-30 | 四川倍特电动车有限公司 | A kind of electric motor car water cooling plant |
-
2016
- 2016-04-27 CN CN201610270963.2A patent/CN107317432A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB257974A (en) * | 1925-05-12 | 1926-09-13 | Enclosed Motor Company Ltd | Improvements relating to the cooling of dynamo electric and other machines |
| CN1138770A (en) * | 1995-02-06 | 1996-12-25 | 运载器有限公司 | Fuzzy logic control of liquid injection for motor cooling |
| CN101350544A (en) * | 2008-07-30 | 2009-01-21 | 无锡开普动力有限公司 | Water cooling electric machine for vehicle |
| CN205753848U (en) * | 2016-04-27 | 2016-11-30 | 四川倍特电动车有限公司 | A kind of electric motor car water cooling plant |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109219322A (en) * | 2018-11-06 | 2019-01-15 | 江苏卡威汽车工业集团股份有限公司 | A kind of pure electric automobile high-efficiency water cooling heat sink |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171103 |
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| RJ01 | Rejection of invention patent application after publication |