CN207282570U - A kind of bilayer power battery structure - Google Patents
A kind of bilayer power battery structure Download PDFInfo
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- CN207282570U CN207282570U CN201721252226.6U CN201721252226U CN207282570U CN 207282570 U CN207282570 U CN 207282570U CN 201721252226 U CN201721252226 U CN 201721252226U CN 207282570 U CN207282570 U CN 207282570U
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- lower floor
- temperature
- controlled member
- upper strata
- power battery
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- 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
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Abstract
The utility model provides a kind of double-deck power battery structure applied to new-energy automobile power battery component technology field,Upper strata temperature-controlled member (5) is set between multiple upper strata battery modules (1) of the power battery of the double-deck power battery structure and multiple lower floor's battery modules (2),Multiple lower floor's battery modules (2) bottom positions set lower floor's temperature-controlled member (6),Upper strata temperature-controlled member (5) geometrical clamp is mounted between upper strata module bracket (3) and lower floor's module bracket (4),Lower floor's temperature-controlled member (6) geometrical clamp is mounted between lower floor's module bracket (4) and box crossbeam (7),The double-deck power battery structure of the utility model,It is simple in structure,On the premise of battery modules whole height is not increased,Safe electric clearance between two layers of battery modules is made full use of to arrange temperature-controlled member,So that new energy passenger car battery system is able to heat using water-cooling or hot water,Improve the heat management system performance and efficiency of new energy passenger car.
Description
Technical field
The utility model belongs to new-energy automobile power battery component technology field, is to be related to a kind of pair more specifically
Layer power battery structure.
Background technology
Power battery is the core component of new-energy automobile.Power battery is generally all made of multiple battery modules.It is existing
In technology, many battery modules are arranged to double-layer arrangement structure.And the battery modules of rebuilding of the prior art, structure are empty
Between utilization rate it is low, it is not compact enough.On the premise of having cooled plate or heating plate demand, because space is limited, water can not be conveniently arranged
Cold plate or heating plate.At the same time, in the battery modules of some rebuildings of the prior art, upper strata battery modules pass through branch
Frame is directly installed on tank wall, and once independent rack between two layers of module, cooled plate or heating plate are placed on stent, is caused
The battery modules overall dimensions of rebuilding are excessive, can not meet the needs of segment space compact vehicle, influence miscellaneous part
Arrangement.
Utility model content
Technical problem to be solved in the utility model is：In view of the deficiencies of the prior art, there is provided it is a kind of simple in structure, into
This is low, for convenience of cooled plate or heating plate (temperature-controlled member) is reliably arranged, on the premise of battery modules height is not increased, fills
Divide and arrange temperature-controlled member using electric clearance safe between two layers of battery modules so that compact new energy passenger car battery
System is able to heat using water-cooling or hot water, finally effectively improves the heat management system performance and effect of new energy passenger car
Rate, improves the double-deck power battery structure of new-energy automobile overall performance.
Solve the problems, such as techniques discussed above, the technical solution that the utility model is taken is：
The utility model is a kind of double-deck power battery structure, and the power battery of the double-deck power battery structure includes
Upper strata module bracket is installed in multiple upper strata battery modules and multiple lower floor's battery modules, each upper strata battery modules side, each
Lower floor's battery modules side installation lower floor module bracket, is set between multiple upper strata battery modules and multiple lower floor's battery modules
Layer temperature-controlled member, multiple lower floor's battery modules bottom positions set lower floor's temperature-controlled member, and the upper strata temperature-controlled member is fixed and clamped
Between upper strata module bracket and lower floor's module bracket, lower floor's temperature-controlled member geometrical clamp is mounted in lower floor's module bracket and case
Between body crossbeam.
Each upper strata module bracket lower part sets upper layer bracket attaching plate elements, and each lower floor's module bracket top sets top
Attaching plate elements, each lower floor's module bracket lower part set bottom connecting plate part, and upper strata temperature-controlled member geometrical clamp is mounted in upper
Between layer rack connecting plate part and top connecting plate part, lower floor's temperature-controlled member geometrical clamp is mounted in bottom connecting plate part and box crossbeam
Between.
The upper strata temperature-controlled member is cooled plate or heating plate, and lower floor's temperature-controlled member is cooled plate or heating plate, described
Upper strata temperature-controlled member on multiple upper strata temperature-controlled member connecting holes are set, multiple lower floor's temperature-controlled members are set on lower floor's temperature-controlled member
Connecting hole.
Multiple upper layer bracket connecting holes are set in the upper layer bracket attaching plate elements of each upper strata module bracket, each
Setting is connected hole site sum number amount with upper layer bracket and pushes up correspondingly on the top connecting plate part of lower floor's module bracket
Portion's plate connecting hole, connect upper strata module bracket and lower floor's module bracket each connection bolt I be configured to also cross
One upper layer bracket connecting hole, a upper strata temperature-controlled member connecting hole, the structure of top plate connecting hole.
Multiple base plate member connecting holes, the case are set on the bottom connecting plate part of each lower floor's module bracket
Multiple box crossbeam connecting holes are set on body crossbeam, and each connection bolt II for connecting bottom connecting plate part and box crossbeam is set
For can be also cross a base plate member connecting hole, lower floor's temperature-controlled member connecting hole, box crossbeam connecting hole
Structure.
Each upper strata temperature-controlled member of the upper strata temperature-controlled member connects the upper of the annular block structure of hole site welding one
Fixed block, when connection bolt I passes through upper strata temperature-controlled member connecting hole, connection bolt I is configured to through on upper fixed block
The structure of upper perforate, upper fixed block are installed between upper layer bracket attaching plate elements and top connecting plate part.
One annular block structure of each lower floor's temperature-controlled member connection hole site welding of lower floor's temperature-controlled member
Lower fixed block, when connection bolt II passes through lower floor's temperature-controlled member connecting hole, connection bolt II is configured to through lower fixed block
On lower perforate structure, lower fixed block is installed between bottom connecting plate part and box crossbeam.
Using the technical solution of the utility model, following beneficial effect can be obtained：
Bilayer power battery structure described in the utility model, to realize technical purpose, is designing or is arranging power battery
When, make full use of the gap between upper strata battery modules and lower floor's battery modules, arrange upper strata temperature-controlled member, and upper strata temperature control portion
Part is connected with upper strata module bracket and lower floor's module bracket at the same time, in this way, arrangement upper strata temperature-controlled member will not increase power battery
Overall volume, and can realize that upper strata temperature-controlled member is reliably connected, and it is reliable with upper strata battery modules and lower floor's battery modules
Fitting, effectively improves and cools down heat dissipation effect or heating and thermal insulation effect, and the setting of lower floor's temperature-controlled member, then makes full use of lower floor electric
Gap between pond module and box crossbeam, lower floor's temperature-controlled member are connected with lower floor's module bracket and box crossbeam at the same time, in this way,
Arrangement lower floor temperature-controlled member will not increase power battery overall volume, and can realize that lower floor's temperature-controlled member is reliably connected, and
Ensure that lower floor's temperature-controlled member is reliably bonded with lower floor battery modules, effectively improve cooling heat dissipation effect or heating and thermal insulation effect, most
The heat management system performance and efficiency of new energy passenger car are effectively improved eventually, it is ensured that dependable performance when new-energy automobile works.This
Double-deck power battery structure described in utility model, simple in structure, manufacture cost is low, for convenience of reliably arranging cooled plate or adding
Hot plate (temperature-controlled member), on the premise of battery modules whole height is not increased, makes full use of safety between two layers of battery modules
Electric clearance arrange temperature-controlled member so that compact new energy passenger car battery system is able to use water-cooling or hot water
Heating, finally effectively improves the heat management system performance and efficiency of new energy passenger car, improves new-energy automobile overall performance.
Brief description of the drawings
Brief description is made to the content expressed by each attached drawing of this specification and the mark in figure below：
Fig. 1 is the overall structure diagram of double-deck power battery structure described in the utility model；
Fig. 2 is the configuration schematic diagram of double-deck power battery structure described in the utility model；
Fig. 3 is the side, sectional structure diagram of double-deck power battery structure described in the utility model；
Attached drawing acceptance of the bid note be respectively：1st, upper strata battery modules；2nd, lower floor's battery modules；3rd, upper strata module bracket；4th, lower floor
Module bracket；5th, upper strata temperature-controlled member；6th, lower floor's temperature-controlled member；7th, box crossbeam；8th, upper layer bracket attaching plate elements；9th, top connects
Fishplate bar part；10th, bottom connecting plate part；11st, upper fixed block；12nd, lower fixed block.
Embodiment
Below against attached drawing, by the description of the embodiment, to specific embodiment of the present utility model as involved
Mutual alignment and connection relation, the effect of each several part and operation principle between the shape of each component, construction, each several part etc. make into
The detailed description of one step：
As shown in attached drawing 1- attached drawings 3, the utility model is a kind of double-deck power battery structure, the double-deck power battery
The power battery of structure includes multiple upper strata battery modules 1 and multiple lower floor's battery modules 2, each 1 side of upper strata battery modules
Upper strata module bracket 3, each 2 side of lower floor's battery modules installation lower floor module bracket 4, multiple 1 Hes of upper strata battery modules are installed
Upper strata temperature-controlled member 5 is set between multiple lower floor's battery modules 2, and multiple 2 bottom positions of lower floor's battery modules set lower floor's temperature control
Component 6,5 geometrical clamp of upper strata temperature-controlled member are mounted between upper strata module bracket 3 and lower floor's module bracket 4, the lower floor
6 geometrical clamp of temperature-controlled member is mounted between lower floor's module bracket 4 and box crossbeam 7.Said structure, to realize technical purpose, is setting
When meter or arrangement power battery, the gap between upper strata battery modules and lower floor's battery modules is made full use of, arranges upper strata temperature control
Component, and upper strata temperature-controlled member is connected with upper strata module bracket and lower floor's module bracket at the same time, in this way, arrangement upper strata temperature-controlled member
Power battery overall volume will not be increased, and can realize that upper strata temperature-controlled member is reliably connected, and with upper strata battery modules and
Lower floor's battery modules are reliably bonded, and are effectively improved and are cooled down heat dissipation effect or heating and thermal insulation effect, and the setting of lower floor's temperature-controlled member,
Then make full use of the gap between lower floor's battery modules and box crossbeam, lower floor's temperature-controlled member at the same time with lower floor's module bracket and case
Body crossbeam connects, in this way, arrangement lower floor temperature-controlled member will not increase power battery overall volume, and can realize temperature control portion of lower floor
Part is reliably connected, and ensures that lower floor's temperature-controlled member is reliably bonded with lower floor battery modules, effectively improve cooling heat dissipation effect or
Heating and thermal insulation effect, finally effectively improves the heat management system performance and efficiency of new energy passenger car, it is ensured that new-energy automobile work
Dependable performance when making.Bilayer power battery structure described in the utility model, simple in structure, cost is low, for convenience of reliably cloth
Cooled plate or heating plate (temperature-controlled member) are put, on the premise of battery modules height is not increased, makes full use of two layers of battery modules
Between safe electric clearance arrange temperature-controlled member so that compact new energy passenger car battery system is able to dissipate using water cooling
Heat or hot water heating, finally effectively improve the heat management system performance and efficiency of new energy passenger car, it is whole to improve new-energy automobile
Body performance.
Each 3 lower part of upper strata module bracket sets upper layer bracket attaching plate elements 8, each lower floor's module branch
4 top of frame sets top connecting plate part 9, and each 4 lower part of lower floor's module bracket sets bottom connecting plate part 10, upper strata temperature
Control 5 geometrical clamp of component to be mounted between upper layer bracket attaching plate elements 8 and top connecting plate part 9,6 geometrical clamp of lower floor's temperature-controlled member is mounted in
Between bottom connecting plate part 10 and box crossbeam 7.Said structure, each upper strata module bracket respectively with a upper strata battery modules
It is fixedly connected, and each upper strata module bracket side is connected with an adjacent upper strata module bracket so that multiple upper strata modules
It is structure that stent, which is integrally formed, effectively improves bonding strength, and each lower floor's module bracket side and adjacent lower floor's mould
Pack support connects so that it is structure that multiple lower floor's module brackets, which are integrally formed, effectively improves bonding strength, multiple upper strata module branch
Frame is connected with multiple lower floor's module brackets again, in this way, whole battery modules stent is monolithic construction, is effectively ensured to power electric
The fixation and support in pond.It is real and said structure, upper strata temperature-controlled member are connected with upper strata module bracket and lower floor's module bracket at the same time
Now reliable spacing and connection, lower floor's temperature-controlled member are connected with lower floor's module bracket and box crossbeam at the same time, and realization is reliably spacing can
Battery modules reliably can be cooled down or heated by connection.
The upper strata temperature-controlled member 5 is cooled plate or heating plate, and lower floor's temperature-controlled member 6 is cooled plate or heating plate, institute
Multiple upper strata temperature-controlled member connecting holes are set on the upper strata temperature-controlled member 5 stated, multiple lower floor's temperature controls are set on lower floor's temperature-controlled member 6
Component connecting hole.Said structure, if necessary to cool down for power battery, then upper strata temperature-controlled member and lower floor's temperature-controlled member selection is pacified
Cooled plate is filled, and if necessary to be kept the temperature for power battery, then upper strata temperature-controlled member and lower floor's temperature-controlled member select installation heating plate,
Such selection, it becomes possible to meet the different demands of different dynamic battery.
Multiple upper layer bracket connecting holes are set in the upper layer bracket attaching plate elements 8 of each upper strata module bracket 3, often
Set on the top connecting plate part 9 of a lower floor's module bracket 4 and hole site sum number amount one-to-one corresponding is connected with upper layer bracket
Top plate connecting hole, each connection bolt I for connecting upper strata module bracket 3 and lower floor's module bracket 4 is configured to together
When through a upper layer bracket connecting hole, a upper strata temperature-controlled member connecting hole, top plate connecting hole structure.This
Sample, by the setting of different connecting holes, realizes that upper strata module bracket, upper strata temperature-controlled member, lower floor's module bracket are reliably connected,
Ensure upper strata temperature-controlled member reliable operation.
Multiple base plate member connecting holes are set on the bottom connecting plate part 10 of each lower floor's module bracket 4, it is described
Box crossbeam 7 on multiple box crossbeam connecting holes are set, each connection spiral shell of connection bottom connecting plate part 10 and box crossbeam 7
Bolt II is configured to also cross a base plate member connecting hole, lower floor's temperature-controlled member connecting hole, a box crossbeam
The structure of connecting hole.In this way, by the setting of different connecting holes, realize that lower floor's module bracket, lower floor's temperature-controlled member and babinet are horizontal
Beam is reliably connected, it is ensured that lower floor's temperature-controlled member reliable operation.
Weld the upper fixation of an annular block structure in each upper strata temperature-controlled member connection hole site of upper strata temperature-controlled member 5
Block 11, when connection bolt I passes through upper strata temperature-controlled member connecting hole, connection bolt I is configured to through on upper fixed block 11
The structure of upper perforate, upper fixed block 11 are installed between upper layer bracket attaching plate elements 8 and top connecting plate part 9.Upper fixed block is
In order to make to be separated out certain interval between levels module, for placing cooled plate or heating plate.
One annular block structure of each lower floor's temperature-controlled member connection hole site welding of lower floor's temperature-controlled member 6
Lower fixed block 12, when connection bolt II passes through lower floor's temperature-controlled member connecting hole, connection bolt II is configured to through lower fixation
The structure of lower perforate on block 12, lower fixed block 12 are installed between bottom connecting plate part 10 and box crossbeam 7.Lower fixed block is
In order to make to be separated out gap between lower floor's module and babinet, for placing cooled plate or heating plate.
Bilayer power battery structure described in the utility model, to realize technical purpose, is designing or is arranging power battery
When, make full use of the gap between upper strata battery modules and lower floor's battery modules, arrange upper strata temperature-controlled member, and upper strata temperature control portion
Part is connected with upper strata module bracket and lower floor's module bracket at the same time, in this way, arrangement upper strata temperature-controlled member will not increase power battery
Overall volume, and can realize that upper strata temperature-controlled member is reliably connected, and it is reliable with upper strata battery modules and lower floor's battery modules
Fitting, effectively improves and cools down heat dissipation effect or heating and thermal insulation effect, and the setting of lower floor's temperature-controlled member, then makes full use of lower floor electric
Gap between pond module and box crossbeam, lower floor's temperature-controlled member are connected with lower floor's module bracket and box crossbeam at the same time, in this way,
Arrangement lower floor temperature-controlled member will not increase power battery overall volume, and can realize that lower floor's temperature-controlled member is reliably connected, and
Ensure that lower floor's temperature-controlled member is reliably bonded with lower floor battery modules, effectively improve cooling heat dissipation effect or heating and thermal insulation effect, most
The heat management system performance and efficiency of new energy passenger car are effectively improved eventually, it is ensured that dependable performance when new-energy automobile works.This
Double-deck power battery structure described in utility model, simple in structure, manufacture cost is low, for convenience of reliably arranging cooled plate or adding
Hot plate (temperature-controlled member), on the premise of battery modules whole height is not increased, makes full use of safety between two layers of battery modules
Electric clearance arrange temperature-controlled member so that compact new energy passenger car battery system is able to use water-cooling or hot water
Heating, finally effectively improves the heat management system performance and efficiency of new energy passenger car, improves new-energy automobile overall performance.
Exemplary description is carried out to the utility model above in conjunction with attached drawing, it is clear that the utility model concrete implementation is simultaneously
From the limitation of aforesaid way, if the various improvement that the methodology of the utility model and technical solution carry out are employed, or
It is not improved that the design of the utility model and technical solution are directly applied into other occasions, the protection in the utility model
In the range of.
Claims (7)
- A kind of 1. bilayer power battery structure, it is characterised in that：The power battery of the double-deck power battery structure includes more Upper strata module branch is installed in a upper strata battery modules (1) and multiple lower floor's battery modules (2), each upper strata battery modules (1) side Frame (3), each lower floor's battery modules (2) side installation lower floor's module bracket (4), multiple upper strata battery modules (1) and it is multiple under Upper strata temperature-controlled member (5) is set between layer battery modules (2), and multiple lower floor's battery modules (2) bottom positions set lower floor's temperature control Component (6), upper strata temperature-controlled member (5) geometrical clamp are mounted between upper strata module bracket (3) and lower floor's module bracket (4), institute Lower floor's temperature-controlled member (6) geometrical clamp stated is mounted between lower floor's module bracket (4) and box crossbeam (7).
- 2. bilayer power battery structure according to claim 1, it is characterised in that：Each upper strata module bracket (3) lower part sets upper layer bracket attaching plate elements (8), and each described lower floor's module bracket (4) top sets top connecting plate part (9), each described lower floor's module bracket (4) lower part sets bottom connecting plate part (10), and upper strata temperature-controlled member (5) fixation clamps Between upper layer bracket attaching plate elements (8) and top connecting plate part (9), lower floor's temperature-controlled member (6) geometrical clamp is connected mounted in bottom Between plate (10) and box crossbeam (7).
- 3. bilayer power battery structure according to claim 1 or 2, it is characterised in that：The upper strata temperature-controlled member (5) For cooled plate or heating plate, lower floor's temperature-controlled member (6) is cooled plate or heating plate, is set on the upper strata temperature-controlled member (5) Multiple upper strata temperature-controlled member connecting holes, set multiple lower floor's temperature-controlled member connecting holes on lower floor's temperature-controlled member (6).
- 4. bilayer power battery structure according to claim 3, it is characterised in that：Each upper strata module bracket (3) multiple upper layer bracket connecting holes are set in upper layer bracket attaching plate elements (8), each lower floor's module bracket (4) Set on top connecting plate part (9) and sum number amount one-to-one top plate connecting hole in hole site is connected with upper layer bracket, connected Each connection bolt I of upper strata module bracket (3) and lower floor's module bracket (4) is configured to also cross a upper layer bracket Connecting hole, a upper strata temperature-controlled member connecting hole, the structure of top plate connecting hole.
- 5. bilayer power battery structure according to claim 3, it is characterised in that：Each lower floor's module bracket (4) multiple base plate member connecting holes are set on bottom connecting plate part (10), and the box crossbeam sets multiple babinets on (7) Each connection bolt II of crossbeam connecting hole, connection bottom connecting plate part (10) and box crossbeam (7) is configured to wear at the same time Cross the structure of a base plate member connecting hole, lower floor's temperature-controlled member connecting hole, box crossbeam connecting hole.
- 6. bilayer power battery structure according to claim 4, it is characterised in that：The upper strata temperature-controlled member (5) it is every The upper fixed block (11) of an annular block structure is welded in a upper strata temperature-controlled member connection hole site, and connection bolt I passes through upper strata During temperature-controlled member connecting hole, connection bolt I is configured to the structure through the upper perforate on upper fixed block (11), upper fixed block (11) it is installed between upper layer bracket attaching plate elements (8) and top connecting plate part (9).
- 7. bilayer power battery structure according to claim 5, it is characterised in that：Lower floor's temperature-controlled member (6) The lower fixed block (12) of an annular block structure is welded in each lower floor temperature-controlled member connection hole site, and connection bolt II passes through down During layer temperature-controlled member connecting hole, connection bolt II is configured to the structure through the lower perforate on lower fixed block (12), lower solid Determine block (12) to be installed between bottom connecting plate part (10) and box crossbeam (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721252226.6U CN207282570U (en) | 2017-09-27 | 2017-09-27 | A kind of bilayer power battery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721252226.6U CN207282570U (en) | 2017-09-27 | 2017-09-27 | A kind of bilayer power battery structure |
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| CN207282570U true CN207282570U (en) | 2018-04-27 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711596A (en) * | 2018-05-15 | 2018-10-26 | 华霆（合肥）动力技术有限公司 | Battery of electric vehicle module and supply unit |
| CN109713182A (en) * | 2018-12-26 | 2019-05-03 | 蜂巢能源科技有限公司 | The double-deck module bracket and battery pack of battery pack |
| WO2020133759A1 (en) * | 2018-12-29 | 2020-07-02 | 宁德时代新能源科技股份有限公司 | Battery pack |
| CN112018283A (en) * | 2019-05-31 | 2020-12-01 | 比亚迪股份有限公司 | Module mounting beam for battery pack, battery pack and vehicle |
| CN112018286A (en) * | 2019-05-31 | 2020-12-01 | 比亚迪股份有限公司 | Battery pack and vehicle |
| WO2021142743A1 (en) * | 2020-01-17 | 2021-07-22 | 微宏动力系统（湖州）有限公司 | Battery pack and electric vehicle |
-
2017
- 2017-09-27 CN CN201721252226.6U patent/CN207282570U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711596A (en) * | 2018-05-15 | 2018-10-26 | 华霆（合肥）动力技术有限公司 | Battery of electric vehicle module and supply unit |
| CN108711596B (en) * | 2018-05-15 | 2024-04-02 | 华霆（合肥）动力技术有限公司 | Battery module and power supply device of electric vehicle |
| CN109713182A (en) * | 2018-12-26 | 2019-05-03 | 蜂巢能源科技有限公司 | The double-deck module bracket and battery pack of battery pack |
| WO2020133759A1 (en) * | 2018-12-29 | 2020-07-02 | 宁德时代新能源科技股份有限公司 | Battery pack |
| CN112018283A (en) * | 2019-05-31 | 2020-12-01 | 比亚迪股份有限公司 | Module mounting beam for battery pack, battery pack and vehicle |
| CN112018286A (en) * | 2019-05-31 | 2020-12-01 | 比亚迪股份有限公司 | Battery pack and vehicle |
| WO2021142743A1 (en) * | 2020-01-17 | 2021-07-22 | 微宏动力系统（湖州）有限公司 | Battery pack and electric vehicle |
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