CN108666494A - A kind of big module block structure of flexibility soft-package battery - Google Patents
A kind of big module block structure of flexibility soft-package battery Download PDFInfo
- Publication number
- CN108666494A CN108666494A CN201810713345.XA CN201810713345A CN108666494A CN 108666494 A CN108666494 A CN 108666494A CN 201810713345 A CN201810713345 A CN 201810713345A CN 108666494 A CN108666494 A CN 108666494A
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- module
- bar
- bus
- block
- pole
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- Granted
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 29
- 229910052782 aluminium Inorganic materials 0.000 claims description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a kind of big module block structures of flexible soft-package battery, including multiple Block (2) and multiple module middle frames (5) through-thickness to intersect stacking, is packaged in groups by strap (1)；The Block (2) is battery module, and the positive and negative electrode of multiple Block (2) is electrically connected by bus-bar respectively；The module middle frame (5) is located between Block (2), makes to adjust and retain a certain range of gap between Block (2), realizes flexibility in groups.The present invention can solve the conflict between module versatility and flexible design, reduce module cost in groups, improve module group efficiency.
Description
Technical field
The invention belongs to battery modules fields, especially relate to the riding automobile-used big module of flexible soft-package battery of pure electric vehicle
Structure.
Background technology
With the development of New-energy electric vehicle technology, requirement of the people to its course continuation mileage is also higher and higher, along with
When electric vehicle course continuation mileage develops to 500km or even 600km, traditional vehicle chassis structure can not adapt to its Battery case dress
With demand.Electric vehicle platform of new generation is increasingly favored by main engine plants, with the increase of battery capacity and the reduction of cost,
Big module group process starts to be valued by people.Meanwhile the configuration of different electricity and continual mileage also requires battery modules
Structure design has certain flexibility, can more conveniently realize different types of connection in series-parallel.
In the prior art, passenger car module mostly as design considerations or is based on battery pack bulk using VDA standard sizes
The special-shaped module of design.Although standard module based on VDA sizes (355*155*108) can be good at adapting to battery in traditional vehicle
Installation requirements in packet, but 12 battery cores are fixed by the typical modular architecture that connection in series-parallel form forms, and cannot achieve flexible grade
Join design requirement, and smaller modular structure brings the rising of cost in groups, can not adapt to setting for electric vehicle hardware and software platform of new generation
Meter demand.The big module versatility of abnormal shape based on the design of Battery case bulk is poor, can not adapt to inexpensive generalization and set
Meter demand.
Invention content
Technical problem to be solved by the invention is to provide a kind of big modular structures of flexible soft-package battery, can solve module
Conflict between versatility and flexible design reduces module cost in groups, improves module group efficiency.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of big module block structure of flexibility soft-package battery, including multiple Block (2) and multiple module middle frames (5) edge
Thickness direction, which intersects, to be stacked, and is packaged in groups by strap (1)；The Block (2) is battery module, multiple Block (2)
Positive and negative electrode be electrically connected respectively by bus-bar；The module middle frame (5) is located between Block (2), makes Block (2)
Between adjust and retain a certain range of gap, realize it is flexible in groups.
Further, the Block (2) is made of two battery cores (21) and an aluminum heat conducting plate component (22), described to lead
Hot aluminium sheet component (22) is located between two battery cores (21), and the aluminum heat conducting plate component (22) is equipped with module middle frame (5) even
The buckle connect and the card slot being clamped with bus-bar.
Further, the aluminum heat conducting plate component (22) by both ends plastic supporting pieces (221) and aluminum heat conducting plate (222)
It is made up of hot weld area (2213) hot weld；
Aluminum heat conducting plate (222) section is " I " fonts, and big face (2222) applies heat-conducting glue and is in direct contact with battery core (21), will be electric
In the heat transfer to aluminum heat conducting plate (222) that core (21) generates, excessive face (2221) realizes thermal convection current with extraneous；
The plastic supporting pieces (221) are moulding, are equipped with card slot (2212), for being connect with module middle frame (5)；Institute
The end face for stating plastic supporting pieces (221) is equipped with bus-bar card slot (2211), and the bus-bar card slot (2211) is tied for U-shaped limit
Structure, bus-bar are directly placed into bus-bar card slot (2211) and realize pre-determined bit.
Further, the electrode of the bus-bar and Block (2) realize the string between Block (2) by welding
It is in parallel；Bus-bar is zigzag, including module bus-bar (9) and pole bus-bar (8)；Pole bus-bar (8) end presses M6
Nut, for being connected in series between module.
Further, the bus-bar is externally provided with pole lid (6) and module cover board (7)；The pole lid (6) is a left side
Right symmetrical moulding, is correspondingly arranged at except pole bus-bar (8), and "+" is carved at the big face of pole lid (61) or "-" number is used for area
Other module positive and negative anodes；Bending technique mouth (62) is arranged in pole lid front end, ensures that 90 ° of openings may be implemented in pole lid front end, realizes
Fixation of the copper bar on module pole between module；Pole lid backplate (63) and pole lid ontology setting technical gaps (64), are used for
Break disconnected, copper bar connection between realization module when actual installation by hand as needed；The pole lid (6) is logical with module middle frame (5)
It is fixed to cross pole lid edge portion card slot (65)；
The module cover board (7) is extrusion molding part, is correspondingly arranged at except module bus-bar (9), and bus-bar is isolated；Equipped with mould
Group cover board edge card slot (71) is connected for being realized with module framework.
Further, the module middle frame (5) is symmetrical, can cascade, and the left and right sides is designed with strap limiting slot
(51), the buckle (52) being connected with Block (2) and the M6 nuts installation site (53) for installing bus-bar.
Further, module frame (4), the module frame are additionally provided with except the Block (2) of module both sides outer most edge
Frame (4) is symmetrical, and the edge (41) that both sides are designed with strap limiting slot and grow, the edge (41) is for being isolated module
Concatenation copper bar between fixing bolt cap and module, prevents short circuit.
Further, module end plate (3) is additionally provided with except the module frame (4), the module end plate (3) is crowded
Jewelling proximate matter；Both ends are equipped with module mounting hole (31)；Centre is equipped with module location hole (32)；End face is equipped with module hole for hoist
(33)；Bottom is equipped with liquid cooling plate recessing groove (34)；There are strap locating slot (35) for both sides.
Compared with prior art, the present invention has following advantageous effect：
The present invention provides the big modular structure of Soft Roll for requiring design is arranged based on electric vehicle hardware and software platform, solve well
Contradiction before module versatility and flexible design.The present invention can be by increasing and decreasing Block (2) and module middle frame (5) quantity
Meet different classes of connection in series-parallel demand, realizes flexibility in groups.Module framework, end plate and cover board etc. use the note of low cost
Modeling or extrusion process molding, and versatility is good, the variation of module connection in series-parallel quantity will not bring more difference part, reduce mould
Composition group cost, improves group efficiency.
Description of the drawings
Fig. 1 is big module explosive view in the embodiment of the present invention；
Fig. 2 is big module assembling schematic diagram in the embodiment of the present invention；
Fig. 3 is Block assembling schematic diagrams in the embodiment of the present invention；
Fig. 4 is Block explosive views in the embodiment of the present invention；
Fig. 5 is aluminum heat conducting plate component structure diagram in the embodiment of the present invention；
Fig. 6 is module frame structural schematic diagram in the embodiment of the present invention；
Fig. 7 is module middle frame structure schematic diagram in the embodiment of the present invention；
Fig. 8 is module tip plate configurations schematic diagram in the embodiment of the present invention；
Fig. 9 is module covering plate structure schematic diagram in the embodiment of the present invention；
Figure 10 is pole lid structural schematic diagram in the embodiment of the present invention.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
As shown in Figure 1, 2, a kind of flexible big module of Soft Roll provided by the invention includes：Strap 1, Block2, module end
Plate 3, module frame 4, module middle frame 5, pole lid 6, module cover board 7, pole bus-bar 8, module bus-bar 9.Wherein two
3, two module frames 4 of a module end plate, multiple Block2 and 5 through-thickness heap poststack of multiple module middle frames are packaged
Band is packaged in groups.By adjusting module middle frame thickness, the gap of 0.2~0.5mm is reserved between Block2, module is along battery core thickness
It spends direction and realizes flexibility in groups.
Module bus-bar 9 and pole bus-bar 8 are connect by welding with the electrode of Block2, realize Block2 it
Between connection in series-parallel, the bus-bar be zigzag, facewidth 8mm, 12~18mm of relief width, bus-bar may be implemented jacking production,
Save production cost.For module bus-bar 9 for the connection between the Block2 in module, 8 end of pole bus-bar presses M6's
Nut, for being connected in series between module.The bus-bar material is the preferable red copper of electric conductivity or fine aluminium.
As shown in Figure 3,4, Block2 is made of two battery cores 21 and an aluminum heat conducting plate component 22；As shown in figure 5, heat conduction
Aluminium sheet component 22 is made up of the plastic supporting pieces 221 and aluminum heat conducting plate 222 at both ends 2213 hot weld of hot weld area.Aluminum heat conducting plate is big
Face 2222 applies heat-conducting glue and is in direct contact with battery core 21, and the heat transfer that battery core 21 is generated imports aluminium sheet to importing on aluminium sheet 222
Thermal convection current is realized with external environment in excessive face 2221.222 section of aluminum heat conducting plate is " I " fonts, can effectively be produced battery core 21
Outside raw heat transfer to module.The plastic supporting pieces 221 at aluminum heat conducting plate component both ends are between moulding, with Block
Module framework is connected by card slot 2212, and pole bus-bar card slot 2211 is reserved in end face, and the bus-bar card slot 2211 is U-shaped limit
Bit architecture, bus-bar are directly placed into bus-bar card slot 2211 and realize pre-determined bit.Aluminum heat conducting plate 222 is the aluminium of 0.2~0.5mm thickness
Plate by bending, kill side technological forming, process of surface treatment is anodic oxidation.
The module framework main function of the present invention is the gap filled between Block2, ensures module integral strength.Module
Frame follow it is symmetrical, can cascaded design principle design.Wherein, as shown in fig. 6, module frame 4 is placed in 3 He of module end plate
Between Block2.The concatenation copper bar that the edge 41 grown is used to be isolated between module fixing bolt cap and module, prevents short circuit.Such as figure
Shown in 7, module middle frame 5 reserves strap limiting slot 51, the buckle being connected with aluminum heat conducting plate component 22 52 and for installing pole
The M6 nuts installation site 53 of column bus-bar 8.
As shown in figure 8, module end plate 3 is extruded aluminium section, the waist-shaped hole 31 at both ends 8.5 × 9.5 is module mounting hole, mould
Group surrounding is fixed in the stay bolt of M8 on lower box.The circular hole 32 of intermediate Φ 7 is module location hole, double when needing to arrange
When layer module, the stay bolt of M6 can also first be used to fix lower layer's module by the circular hole 32 of intermediate Φ 7；Then with M8's
Stay bolt fixes upper layer and lower layer module simultaneously.End face processes module hole for hoist 33, and 3 bottom of module end plate processes liquid cooling plate recessing groove
34, there are strap locating slots 35 for 3 both sides of module end plate.
As shown in figure 9, module cover board 7 is extrusion molding part, major function is isolation bus-bar, realizes electricity safety, passes through module
Cover board edge card slot 71 is realized with module framework and is connected.Module cover board 7 can freely be cut according to module length requirement, be realized low
Cost produces.
As shown in Figure 10, pole lid 6 is symmetrical moulding, using the Shooting Technique of a mould scene 2, in pole lid
Carved respectively at big face 61 "+,-" number.Bending technique mouth 62 is arranged in pole lid front end, ensures that pole lid front end may be implemented 90 ° and beat
It opens, realizes fixation of the copper bar on module pole between module.Technical gaps 64 are arranged with pole lid ontology in pole lid backplate 63, real
Border can break disconnected by hand as needed when installing, facilitate copper bar between module and connect.Pole lid 6 passes through pole with module middle frame 5
Column lid edge portion card slot 65 is fixed, and is realized and is fixed by middle part buckle 66 with module frame 4.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (8)
1. a kind of big module block structure of flexibility soft-package battery, which is characterized in that including in multiple Block (2) and multiple modules
Frame (5) through-thickness, which intersects, to be stacked, and is packaged in groups by strap (1)；The Block (2) is battery module, multiple
The positive and negative electrode of Block (2) is electrically connected by bus-bar respectively；The module middle frame (5) is located between Block (2), makes
A certain range of gap is adjusted and retained between Block (2), realizes flexibility in groups.
2. a kind of big module block structure of flexible soft-package battery according to claim 1, which is characterized in that the Block
(2) it is made of two battery cores (21) and an aluminum heat conducting plate component (22), the aluminum heat conducting plate component (22) is located at two battery cores
(21) between, the aluminum heat conducting plate component (22) is equipped with the buckle being connect with module middle frame (5) and the card being clamped with bus-bar
Slot.
3. a kind of big module block structure of flexible soft-package battery according to claim 2, which is characterized in that the heat conduction aluminum
Board group part (22) is made up of the plastic supporting pieces (221) and aluminum heat conducting plate (222) at both ends hot weld area (2213) hot weld；
Aluminum heat conducting plate (222) section is " I " fonts, and big face (2222) applies heat-conducting glue and is in direct contact with battery core (21), by battery core
(21) in the heat transfer to aluminum heat conducting plate (222) generated, excessive face (2221) realizes thermal convection current with extraneous；
The plastic supporting pieces (221) are moulding, are equipped with card slot (2212), for being connect with module middle frame (5)；The modeling
Expect that the end face of support element (221) is equipped with bus-bar card slot (2211), the bus-bar card slot (2211) is U-shaped position limiting structure, is converged
Stream row is directly placed into bus-bar card slot (2211) and realizes pre-determined bit.
4. a kind of big module block structure of flexible soft-package battery according to claim 1, which is characterized in that the bus-bar
And the electrode of Block (2) realizes the connection in series-parallel between Block (2) by welding；Bus-bar is zigzag, including mould
Group bus-bar (9) and pole bus-bar (8)；Pole bus-bar (8) end presses the nut of M6, connects for the series connection between module
It connects.
5. a kind of big module block structure of flexible soft-package battery according to claim 4, which is characterized in that the bus-bar
Be externally provided with pole lid (6) and module cover board (7)；The pole lid (6) is symmetrical moulding, is correspondingly arranged at pole
Except bus-bar (8), "+" or "-" number are carved at the big face of pole lid (61), for distinguishing module positive and negative anodes；Pole lid front end is arranged
Bending technique mouth (62) ensures that 90 ° of openings may be implemented in pole lid front end, realizes copper bar consolidating on module pole between module
It is fixed；Pole lid backplate (63) and pole lid ontology setting technical gaps (64), when actual installation, break disconnected by hand as needed, realize
Copper bar connects between module；The pole lid (6) is fixed by pole lid edge portion card slot (65) with module middle frame (5)；
The module cover board (7) is extrusion molding part, is correspondingly arranged at except module bus-bar (9), and bus-bar is isolated；Equipped with module lid
Edges of boards portion card slot (71) is connected for being realized with module framework.
6. a kind of big module block structure of flexible soft-package battery according to claim 1, which is characterized in that in the module
Frame (5) is symmetrical, and the left and right sides is designed with strap limiting slot (51), the buckle (52) that is connected with Block (2) and is used for
The M6 nuts installation site (53) of bus-bar is installed.
7. a kind of big module block structure of flexible soft-package battery according to claim 1, which is characterized in that module both sides are most
Module frame (4) is additionally provided with except the Block (2) of outer rim, the module frame (4) is symmetrical, and both sides, which are designed with, to be beaten
Band limiting slot and the edge (41) grown, the concatenation copper that the edge (41) is used to be isolated between module fixing bolt cap and module
Row, prevents short circuit.
8. a kind of big module block structure of flexible soft-package battery according to claim 7, which is characterized in that the module side
Module end plate (3) is additionally provided with except frame (4), the module end plate (3) is extruded aluminium section；Both ends are equipped with module mounting hole
(31)；Centre is equipped with module location hole (32)；End face is equipped with module hole for hoist (33)；Bottom is equipped with liquid cooling plate recessing groove (34)；
There are strap locating slot (35) for both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810713345.XA CN108666494B (en) | 2018-06-29 | 2018-06-29 | Large module group structure of flexible soft-package battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810713345.XA CN108666494B (en) | 2018-06-29 | 2018-06-29 | Large module group structure of flexible soft-package battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108666494A true CN108666494A (en) | 2018-10-16 |
| CN108666494B CN108666494B (en) | 2023-12-22 |
Family
ID=63773576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810713345.XA Active CN108666494B (en) | 2018-06-29 | 2018-06-29 | Large module group structure of flexible soft-package battery |
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| Country | Link |
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| CN (1) | CN108666494B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190223A (en) * | 2019-05-20 | 2019-08-30 | 广州中国科学院工业技术研究院 | Prospect of EVS Powered with Batteries mould group |
| CN110336068A (en) * | 2019-06-25 | 2019-10-15 | Oppo广东移动通信有限公司 | Head-mounted display apparatus |
| CN110492278A (en) * | 2019-07-25 | 2019-11-22 | 孚能科技(赣州)股份有限公司 | Busbar connector and battery modules, battery system and electric vehicle with the busbar connector |
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| CN207282558U (en) * | 2017-08-18 | 2018-04-27 | 国联汽车动力电池研究院有限责任公司 | Method for soft package lithium ion power module |
| CN207320245U (en) * | 2017-08-24 | 2018-05-04 | 多氟多（焦作）新能源科技有限公司 | A kind of soft package lithium battery module |
| CN207320191U (en) * | 2017-08-24 | 2018-05-04 | 多氟多（焦作）新能源科技有限公司 | Soft package lithium battery module and its battery core unit, the frame of battery core unit |
| CN208538947U (en) * | 2018-06-29 | 2019-02-22 | 天津市捷威动力工业有限公司 | A kind of big mould group block structure of flexibility soft-package battery |
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| CN207282558U (en) * | 2017-08-18 | 2018-04-27 | 国联汽车动力电池研究院有限责任公司 | Method for soft package lithium ion power module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110190223A (en) * | 2019-05-20 | 2019-08-30 | 广州中国科学院工业技术研究院 | Prospect of EVS Powered with Batteries mould group |
| CN110336068A (en) * | 2019-06-25 | 2019-10-15 | Oppo广东移动通信有限公司 | Head-mounted display apparatus |
| CN110336068B (en) * | 2019-06-25 | 2021-09-10 | Oppo广东移动通信有限公司 | Head-mounted display device |
| CN110492278A (en) * | 2019-07-25 | 2019-11-22 | 孚能科技(赣州)股份有限公司 | Busbar connector and battery modules, battery system and electric vehicle with the busbar connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108666494B (en) | 2023-12-22 |
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