CN104810568A - Air cooling radiator unit of power supply module for electrical vehicle and power supply module thereof - Google Patents
Air cooling radiator unit of power supply module for electrical vehicle and power supply module thereof Download PDFInfo
- Publication number
- CN104810568A CN104810568A CN201410378708.0A CN201410378708A CN104810568A CN 104810568 A CN104810568 A CN 104810568A CN 201410378708 A CN201410378708 A CN 201410378708A CN 104810568 A CN104810568 A CN 104810568A
- Authority
- CN
- China
- Prior art keywords
- battery core
- plastic stent
- air cooling
- core unit
- power module
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an air cooling radiator unit of a power supply module for an electrical vehicle and the power supply module. According to the radiator unit, plastic supports, a radiating aluminum sheet, electrical cores and isolating cotton form a 2P electrical core unit which comprises two 1P electrical core units. The two 1P electrical core units are respectively adhered through two faces of the isolating cotton to the two electrical cores and are stacked up at intervals, and the outermost two plastic supports are mutually fastened as a whole. The invention also discloses a power supply module which comprises a cover plate and a pressure plate and also comprises 2P electrical core units arranged between the cover plate and the pressure plate, wherein the 2P electrical core units are mutually in series connection and stacked up. The structure of the device is optimized. By a gap radiating mode, a good radiating effect is realized, additional liquid cooling radiating structures are removed, and manufacturing cost is greatly reduced.
Description
Technical field
The present invention relates to electric car power supply equipment technical field, especially relate to a kind of air cooling heat-sink unit and power module thereof of power module used for electric vehicle.
Background technology
Along with the development that new-energy automobile is like a raging fire in the whole world, electric automobile is more and more paid attention to by people.The performance requirement of continuous upgrading to power-supply system of power-equipment is also more and more higher, and the series of problems that battery weak heat-dissipating causes becomes increasingly conspicuous.The most new forms of energy car of existing market often adopts at liquid cooling or air cooling equipment to realize the heat management of dynamical system.But prior art causes the weight too much adding car load to a certain extent, and have that arrangement difficulty is large, high in cost of production problem, be difficult to occupy advantage in industry competition.Therefore can meet hybrid power coach origin system thermal management requirements, can reduce integral vehicle cost and weight to a certain extent again, make this body structure of battery module simple, the research and development possessing good radiating effect are imperative.
Notification number is CN202585590U, the day for announcing is disclose a kind of electric car power supply modular structure in the Chinese patent document on December 5th, 2012, comprise two block pressur plates and be stackedly arranged on several first power supply singles between two block pressur plates and second source monomer, first power supply single and second source monomer are spaced and stacked setting, and the positive pole of the first power supply single, negative pole respectively with the negative pole of second source monomer, positive pole is adjacent, the first stacked power supply single and second source monomer are in series successively, the first described power supply single and second source monomer all have 2N the battery core be connected in parallel.In the structure shown here, the first power supply single and second source monomer all have even number battery core to be formed in parallel, and the battery core number comprised is identical, by the first power supply single, the arrangement of second source monomer lamination order between two block pressur plates.And power module overall structure first the parallel connection of even number battery core is formed power supply single, then power supply single is carried out in series.Although this structure can reduce the difference of power module internal-external temperature difference and internal resistance continuously, make that internal temperature is consistent and to connect internal resistance consistent, but form in the first sub-monomer of its first power supply single and second source monomer and the structure of the second sub-monomer, adopt four layers of support, one deck radiating aluminium sheet and foam cotton clamp the fixed form of battery core, structural member application very complicated, increase substantially manufacturing cost, battery core is directly installed in the phenomenon easily causing in support and rock, and battery core and aluminium flake non-fully contact to assemble its radiating effect not good, and aluminium flake needs to connect extra liquid-cooling heat radiator.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, technical problem to be solved is to provide a kind of air cooling heat-sink unit of power module used for electric vehicle, and it is by optimizing structure, and removes extra liquid-cooling heat radiation structure, adopt gap radiating mode, realize good radiating effect; Make battery core uniform force, realize Performance optimization; Reduce structural member, reduce manufacturing cost, improve efficiency of assembling.Additionally provide a kind of power module be made up of this air cooling heat-sink unit, its structure is simplified simultaneously, and radiating effect is better, considerably reduces manufacturing cost.
The present invention makes above-mentioned technical problem be solved by the following technical programs.
An air cooling heat-sink unit for power module used for electric vehicle, by plastic stent, radiating aluminium sheet, battery core with form 2P battery core unit every cotton; Radiating aluminium sheet is installed in the inner side of plastic stent hollow out framework, and the lateral surface of radiating aluminium sheet is provided with some projections, protruding exposes from the hollow out framework of plastic stent, and the medial surface that battery core is bonded in radiating aluminium sheet forms 1P battery core unit; 2P battery core unit comprises two 1P battery core unit, and two 1P battery core unit keep the stacked setting in interval by two-sided being bonded in respectively in two battery cores every cotton, and outermost two plastic stents are buckled into one mutually; The outside of plastic stent hollow out framework is provided with interface arrangment, stacked when arranging between 2P battery core unit, keeps certain interval to be connected together between adjacent plastic stent by described interface arrangment.
This air cooling heat-sink unit simplifies structure by optimization, battery core is directly bonded on radiating aluminium sheet, can realize good radiating effect.The mode of this fixing battery core, solid and reliable, eliminate the phenomenon that battery core shakes in plastic stent.Stacked when arranging between 2P battery core unit, owing to being formed with the snap-fit engagement in gap between adjacent plastic stent, contribute to the heat radiation of battery core, therefore eliminate the liquid-cooling heat radiation structure of somewhat complex design, manufacturing cost is significantly reduced, is easy to assembling manufacturing.The lateral surface of radiating aluminium sheet arranges projection, this projection protrudes from the hollow out framework of plastic stent, stacked when arranging between 2P battery core unit, adjacent radiating aluminium sheet carrys out the stressed of balanced 2P battery core unit inside by the extruding force between mutually corresponding projection, and then make battery core uniform force, realize Performance optimization.
As preferably, protruding is punch forming structure.Be conducive to processing and manufacturing, with low cost, reliable in quality.
As preferably, plastic stent arranges limited post, radiating aluminium sheet is arranged the hole clipping with limited post phase snap-fit engagement.Guarantee radiating aluminium sheet to be positioned on plastic stent not offset, inconsistent phenomenon.
As preferably, described interface arrangment is that interval arranges some boss on the dual-side in the outside of plastic stent hollow out framework, the boss of side side wherein arranges joint pin, the boss of opposite side side arranges the groove with joint pin phase snap-fit engagement.Or adopt interval on the boss of both sides side that joint pin and the groove with joint pin phase snap-fit engagement are set.Stacked when arranging between 2P battery core unit, be connected in groove by joint pin between adjacent plastic stent and ensure to be fixedly connected with, boss is higher than the side of plastic stent hollow out framework simultaneously, thus forms certain gap, can realize good radiating effect by this gap.
As preferably, the dual-side of the hollow out framework of plastic stent is extended with reinforcement towards inner side.Reinforcement can improve the intensity of plastic stent.Further improvement, the reinforcement of side side is provided with block tongue, and the reinforcement of opposite side side is provided with the draw-in groove be connected that to be interlocked with block tongue, is interlocked integral between two plastic stents of 2P battery core unit by block tongue and draw-in groove.
A kind of power module, comprises cover plate and pressing plate, also comprises the 2P battery core unit be arranged between cover plate and pressing plate, and the mutual stacked in series of 2P battery core unit is arranged.Owing to adopting 2P battery core unit, its structure is more simply compact, and radiating effect is better, thus considerably reduces manufacturing cost, improves the economic benefit of enterprise.
Generally speaking, the air cooling heat-sink unit of power module used for electric vehicle of the present invention becomes 2P battery core cellular construction through simplifying optimal design, while reducing structural member, considerably reduces manufacturing cost.And there is good radiating effect.The power module be made up of this air cooling heat-sink unit, on the basis of simplifying structure, eliminates extra liquid-cooling heat radiation structure, improves production efficiency of assembling, for enterprise brings considerable economic benefit.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of 2P battery core unit;
Fig. 2 is the side-looking structural representation of Fig. 1;
Fig. 3 is the decomposition texture schematic diagram of Fig. 2;
Fig. 4 is a kind of structural representation of the plastic stent of 2P battery core unit;
Fig. 5 is the main TV structure schematic diagram of Fig. 4;
Fig. 6 is the side-looking structural representation of Fig. 5;
Fig. 7 is a kind of structural representation of the radiating aluminium sheet of 2P battery core unit;
Fig. 8 is a kind of structural representation that the radiating aluminium sheet of 2P battery core unit is assemblied on plastic stent;
Fig. 9 is every cotton assembling schematic diagram before the mounting in 2P battery core unit;
Figure 10 is a kind of structural representation of power module of the present invention.
In figure: 1-plastic stent, 2-radiating aluminium sheet, 3-battery core, 4-is every cotton, and 5-is protruding, 6-limited post, 7-hole clipping, 8-boss, 9-joint pin, 10-reinforcement, 11-block tongue, 12-draw-in groove, 13-cover plate, 14-pressing plate, 15-2P battery core unit.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are described in detail.
The air cooling heat-sink unit of a kind of power module used for electric vehicle of the present invention as shown in Fig. 1 Fig. 2 Fig. 3, by plastic stent 1, radiating aluminium sheet 2, battery core 3 with form 2P battery core unit 15 every cotton 4.As shown in Figure 8, radiating aluminium sheet 2 is installed in the inner side of plastic stent 1 hollow out framework, as a kind of execution mode, composition graphs 4, Fig. 5 and Fig. 7 are known, plastic stent 1 arranges limited post 6, radiating aluminium sheet 2 is arranged the hole clipping 7 with limited post 6 phase snap-fit engagement, radiating aluminium sheet 2 is connected in hole clipping 7 by limited post 6 and realizes location, and be integrally fixed with plastic stent 1, ensure the phenomenon that radiating aluminium sheet 2 there will not be displacement, rocks.The lateral surface of radiating aluminium sheet 2 is provided with some protruding 5, and as shown in Figure 2, protruding 5 expose from the hollow out framework of plastic stent 1.Easy to process in order to ensure, reliable in quality, preferably can arrange the punch forming structure that protruding 5 are radiating aluminium sheet 2.Referring to Fig. 9, the medial surface that battery core 3 is bonded in radiating aluminium sheet 2 forms 1P battery core unit.2P battery core unit 15 comprises two 1P battery core unit, and two 1P battery core unit keep the stacked setting in interval by two-sided being bonded in respectively in two battery cores 3 every cotton 4, and as shown in Figure 2, outermost two plastic stents 1 are buckled into one mutually.Shown in Fig. 2, Fig. 3 and Fig. 6, the outside of plastic stent 1 hollow out framework is provided with interface arrangment, stacked when arranging between 2P battery core unit 15, keeps certain interval to be connected together between adjacent plastic stent 1 by described interface arrangment.As a kind of execution mode of described interface arrangment, on the dual-side in the outside of plastic stent 1 hollow out framework, interval arranges some boss 8, the boss 8 of side side wherein arranges joint pin 9, the boss 8 of opposite side side arranges the groove with joint pin 9 phase snap-fit engagement.Stacked when arranging between 2P battery core unit 15, be connected in described groove by joint pin 9 between adjacent plastic stent 1 and achieve a fixed connection, because boss 8 forms certain gap higher than the side of plastic stent 1 hollow out framework, then utilize this gap just can realize good radiating effect.As the another kind of execution mode of described interface arrangment, can select interval on boss 8 that joint pin 9 and the groove with joint pin 9 phase snap-fit engagement are set.Dispel the heat in the gap that this structure same can utilize boss 8 to be formed, and to ensure between joint pin 9 with described groove firm is connected, and prevents from occurring the phenomenon that position offsets between adjacent plastic stent 1.
As a kind of execution mode be fastened and connected between two plastic stents 1 in 2P battery core unit 15, as shown in Figures 2 and 3, the dual-side of the hollow out framework of plastic stent 1 towards inner side extended reinforcement 10.Reinforcement 10 can increase the rigidity of plastic stent 1.The reinforcement 10 of side side wherein arranges block tongue 11, the reinforcement 10 of opposite side side to be arranged and block tongue 11 is interlocked the draw-in groove 12 be connected, by block tongue 11 and solid and reliable the snapping together of draw-in groove 12 between two plastic stents 1 that such structure can ensure 2P battery core unit 15.
A kind of power module of the present invention as shown in Figure 10, comprises cover plate 13 and pressing plate 14, also comprises the mutual stacked in series of 2P battery core unit 15,2P battery core unit 15 be arranged between cover plate 13 and pressing plate 14 and arranges.
The present invention is not limited to above-described execution mode, fastening structure between two plastic stents of 2P battery core unit, and the execution mode of the malformation that equivalence is replaced in the middle of the known technology keeping the interface arrangment in gap that those skilled in the art also can be adopted to obtain between stacked plastic stent adjacent when arranging between 2P battery core unit or prior art.As long as the execution mode that have employed the 2P battery core cellular construction that the present invention's process is optimized all drops in protection scope of the present invention.
Claims (8)
1. an air cooling heat-sink unit for power module used for electric vehicle, is characterized in that: by plastic stent (1), radiating aluminium sheet (2), battery core (3) with form 2P battery core unit (15) every cotton (4); Radiating aluminium sheet (2) is installed in the inner side of plastic stent (1) hollow out framework, the lateral surface of radiating aluminium sheet (2) is provided with some projections (5), protruding (5) expose from the hollow out framework of plastic stent (1), and the medial surface that battery core (3) is bonded in radiating aluminium sheet (2) forms 1P battery core unit; 2P battery core unit (15) comprises two 1P battery core unit, and two 1P battery core unit are bonded in two battery cores (3) upper maintenance stacked setting in interval by one respectively every the two-sided of cotton (4), and outermost two plastic stents (1) are buckled into one mutually; The outside of plastic stent (1) hollow out framework is provided with interface arrangment, stacked when arranging between 2P battery core unit (15), keeps certain interval to be connected together between adjacent plastic stent (1) by described interface arrangment.
2. the air cooling heat-sink unit of power module used for electric vehicle according to claim 1, is characterized in that: protruding (5) are punch forming structure.
3. the air cooling heat-sink unit of power module used for electric vehicle according to claim 1, is characterized in that: plastic stent (1) is arranged limited post (6), and radiating aluminium sheet (2) is upper arranges the hole clipping (7) with limited post (6) phase snap-fit engagement.
4. the air cooling heat-sink unit of power module used for electric vehicle according to claim 1, it is characterized in that: described interface arrangment is that interval arranges some boss (8) on the dual-side in the outside of plastic stent (1) hollow out framework, the boss (8) of side side wherein arranges joint pin (9), the groove with joint pin (9) phase snap-fit engagement is set the boss (8) of opposite side side is upper.
5. the air cooling heat-sink unit of power module used for electric vehicle according to claim 1, it is characterized in that: described interface arrangment is that interval arranges some boss (8) on the dual-side in the outside of plastic stent (1) hollow out framework, the upper interval of boss (8) arranges joint pin (9) and the groove with joint pin (9) phase snap-fit engagement.
6. the air cooling heat-sink unit of power module used for electric vehicle according to claim 1, is characterized in that: the dual-side of the hollow out framework of plastic stent (1) is extended with reinforcement (10) towards inner side.
7. the air cooling heat-sink unit of power module used for electric vehicle according to claim 6, it is characterized in that: the reinforcement (10) of side side is provided with block tongue (11), the reinforcement (10) of opposite side side is provided with the draw-in groove (12) be connected that to be interlocked with block tongue (11), is interlocked integral between two plastic stents (1) of 2P battery core unit (15) by block tongue (11) and draw-in groove (12).
8. a power module, comprise cover plate (13) and pressing plate (14), it is characterized in that: also comprise the 2P battery core unit (15) according to any one of claim 1 to 7 be arranged between cover plate (13) and pressing plate (14), 2P battery core unit (15) mutually stacked in series is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410378708.0A CN104810568B (en) | 2014-08-04 | 2014-08-04 | A kind of air cooling heat-sink unit of power module used for electric vehicle and its power module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410378708.0A CN104810568B (en) | 2014-08-04 | 2014-08-04 | A kind of air cooling heat-sink unit of power module used for electric vehicle and its power module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104810568A true CN104810568A (en) | 2015-07-29 |
| CN104810568B CN104810568B (en) | 2017-03-08 |
Family
ID=53695211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410378708.0A Active CN104810568B (en) | 2014-08-04 | 2014-08-04 | A kind of air cooling heat-sink unit of power module used for electric vehicle and its power module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104810568B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390510A (en) * | 2017-08-03 | 2019-02-26 | 中信国安盟固利动力科技有限公司 | A kind of air-cooled lithium ion battery frame and battery pack and its assembly method |
| CN110993842A (en) * | 2018-10-02 | 2020-04-10 | 罗伯特·博世有限公司 | Battery module subunit and battery module |
| CN115064846A (en) * | 2022-08-01 | 2022-09-16 | 兴数能源科技有限公司 | Energy storage battery module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1877883A (en) * | 2005-04-26 | 2006-12-13 | 三星Sdi株式会社 | Battery module |
| CN202585590U (en) * | 2012-04-13 | 2012-12-05 | 万向电动汽车有限公司 | Power module structure of electric car |
| CN102938449A (en) * | 2011-08-15 | 2013-02-20 | 谢长淮 | Device for fastening and heat dissipation of battery modules |
| CN203415637U (en) * | 2013-07-18 | 2014-01-29 | 微宏动力系统（湖州）有限公司 | High heat radiation soft cell bracket |
-
2014
- 2014-08-04 CN CN201410378708.0A patent/CN104810568B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1877883A (en) * | 2005-04-26 | 2006-12-13 | 三星Sdi株式会社 | Battery module |
| CN102938449A (en) * | 2011-08-15 | 2013-02-20 | 谢长淮 | Device for fastening and heat dissipation of battery modules |
| CN202585590U (en) * | 2012-04-13 | 2012-12-05 | 万向电动汽车有限公司 | Power module structure of electric car |
| CN203415637U (en) * | 2013-07-18 | 2014-01-29 | 微宏动力系统（湖州）有限公司 | High heat radiation soft cell bracket |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390510A (en) * | 2017-08-03 | 2019-02-26 | 中信国安盟固利动力科技有限公司 | A kind of air-cooled lithium ion battery frame and battery pack and its assembly method |
| CN110993842A (en) * | 2018-10-02 | 2020-04-10 | 罗伯特·博世有限公司 | Battery module subunit and battery module |
| CN115064846A (en) * | 2022-08-01 | 2022-09-16 | 兴数能源科技有限公司 | Energy storage battery module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104810568B (en) | 2017-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202905921U (en) | Vehicle-mounted battery pack cooling system | |
| CN108054462A (en) | Battery and its heat management device and the UAV with the battery | |
| RU2011138505A (en) | BATTERY WITH HEAT DISCHARGE CONSTRUCTION | |
| CN209765946U (en) | LED display module and display screen | |
| CN202171168U (en) | Splicing type backlight module structure | |
| CN104810568A (en) | Air cooling radiator unit of power supply module for electrical vehicle and power supply module thereof | |
| CN204179174U (en) | Battery and heat management device thereof and there is the UAV of this battery | |
| CN207116512U (en) | A kind of battery bag of simple installation | |
| CN203641991U (en) | LED strip light and fixing structure thereof | |
| CN207743257U (en) | Battery modules and battery pack | |
| CN202253486U (en) | Direct type backlight radiating structure | |
| CN203055999U (en) | Square cell block structure | |
| CN203416557U (en) | Direct type LED TV radiation fin | |
| CN203536484U (en) | Sliding-inserted type storage battery and electric bicycle with same | |
| CN207368035U (en) | A kind of fixing bracket unit, fixing bracket and column lithium ion battery group | |
| CN202091942U (en) | Novel LED streetlamp | |
| CN103363833A (en) | Plastic frame for manufacturing heat exchanger | |
| CN204155983U (en) | A kind of power battery pack | |
| CN203848153U (en) | LED illuminating lamp for electric bus | |
| CN218472130U (en) | Battery pack | |
| CN202736988U (en) | Battery jar structure facilitating battery heat dissipation | |
| CN201709047U (en) | Compound-structured electric cabinet for air-conditioner | |
| CN103542291A (en) | Direct insertion LED lamp strip | |
| CN203586137U (en) | Heat radiation structure of LED tunnel lamp | |
| CN203703651U (en) | LED mining lamp casing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| CB02 | Change of applicant information |
Address after: 311215 Xiaoshan economic and Technological Development Zone, Zhejiang District, No. two road, building No. 855, No. Applicant after: Wanxiang 123 Co Ltd Applicant after: Wanxiang Electric Vehicle Co., Ltd. Applicant after: Wanxiang Group Corporation Address before: 311215 Xiaoshan economic and Technological Development Zone, Zhejiang, No. two road, building No. 118, No. Applicant before: Universal A 1 System Co., Ltd Applicant before: Wanxiang Electric Vehicle Co., Ltd. Applicant before: Wanxiang Group Corporation |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211108 Address after: No.855, Jianshe 2nd Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee after: Wanxiang A123 Co.,Ltd. Address before: No.855, Jianshe 2nd Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee before: Wanxiang A123 Co.,Ltd. Patentee before: WANXIANG EV Co.,Ltd. Patentee before: WANXIANG GROUP Co.,Ltd. |