CN209912923U - Laminate polymer battery module that plastic frame surrounded - Google Patents
Laminate polymer battery module that plastic frame surrounded Download PDFInfo
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- CN209912923U CN209912923U CN201920818937.8U CN201920818937U CN209912923U CN 209912923 U CN209912923 U CN 209912923U CN 201920818937 U CN201920818937 U CN 201920818937U CN 209912923 U CN209912923 U CN 209912923U
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- plastic frame
- laminate polymer
- polymer battery
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- heat
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- 239000004033 plastic Substances 0.000 title claims abstract description 102
- 229920003023 plastic Polymers 0.000 title claims abstract description 102
- 229920000642 polymer Polymers 0.000 title claims abstract description 30
- 238000005070 sampling Methods 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 description 12
- 238000009434 installation Methods 0.000 description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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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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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a laminate polymer battery module that plastic frame surrounded, its technical scheme main points are including the module shell, locate a plurality of laminate polymer core in the module shell side by side and cooperate the heat-conducting plate that the module shell located laminate polymer core bottom, the module shell is including detaining the plastic frame who locates on a plurality of laminate polymer core, the bottom of plastic frame sets up through first assembly portion and heat-conducting plate cooperation, the front end and the rear end of plastic frame set up through second assembly portion and heat-conducting plate cooperation, the front end and the rear end of plastic frame cooperate respectively and are equipped with the plastics apron. An object of the utility model is to provide a laminate polymer battery module that plastics frame surrounded that the steadiness is strong, the assembly is simple, high strength and high security.
Description
Technical Field
The utility model relates to a battery module processing technology field, more specifically the saying so, it relates to a high strength plastics frame laminate polymer core module.
Background
New energy automobile generally adopts the battery package as energy part, and the battery module is the core component part of battery package. The battery module is a plurality of modules formed by connecting several to hundreds of battery cores in parallel and in series, and a relatively complete battery pack system can be formed by the battery management system and the thermal management system except for the mechanism design part. In order to fix the battery module, a frame is generally self-fixed at the outer society thereof, and the fixed frame mainly includes a pair of side plates and a pair of end plates, which are sequentially connected to form a space for accommodating the battery cell.
Current soft-packaged electrical core module generally adopts U type or mouthful style of calligraphy aluminium bucket as the shell, is connected frame and end plate through laser welding, forms whole module frame. The current battery module design has the following problems: (1) the welding between the metal shell and the end plate needs higher matching precision and has higher process requirement; (2) high temperature is generated during welding, and the internal soft package battery cell can be damaged; (4) the module is difficult to disassemble after welding and belongs to a series of modules which cannot be maintained; (5) the place in the metal casing that is comparatively close with electrical connection in the module needs to do insulating treatment in addition, generally adopts extra working of plastics to do the isolation, and the part quantity is more, and weight is great.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a laminate polymer battery module that plastic frame surrounded of steadiness is strong, the assembly is simple, high strength and high security.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a laminate polymer battery module that plastic frame surrounded, includes the module shell, locates a plurality of laminate polymer core and the cooperation module shell in the module shell side by side and locates the heat-conducting plate of laminate polymer core bottom, the module shell is including detaining the plastic frame who locates on a plurality of laminate polymer core, the bottom of plastic frame sets up through first assembly portion and heat-conducting plate cooperation, the front end and the rear end of plastic frame set up through second assembly portion and heat-conducting plate cooperation, the front end and the rear end of plastic frame cooperate respectively to be equipped with the plastics apron.
Preferably, the first assembly part comprises a first boss and a first groove which are sequentially arranged at the bottoms of two sides of the plastic frame from outside to inside, and the edges of two sides of the heat conduction plate are matched with the first boss and the first groove to sequentially arrange a second groove and a second boss.
Preferably, the included angle between the inner groove wall of the first groove and the horizontal plane is less than 90 degrees.
Preferably, a glue layer is arranged between the first boss and the second groove, and a glue layer is arranged between the first groove and the second boss.
Preferably, the second assembly portion is including locating the trapezoidal platform of a plurality of parallels of heat conduction plate top surface, trapezoidal platform is parallel with the side of plastic frame, the cooperation of the bottom of plastic frame's front end plate and back end plate trapezoidal platform is equipped with first dovetail groove.
Preferably, the front end plate and the rear end plate of the plastic frame are respectively provided with sliding grooves towards two sides of the corresponding ends, and the sliding grooves are matched with two side edges of the corresponding plastic cover plate; and a second trapezoidal groove is formed in the bottom of the plastic cover plate corresponding to the trapezoidal table.
Preferably, positioning columns are arranged at four corners of the bottom of the plastic frame, and positioning holes are respectively arranged at the four corners of the heat conducting plate corresponding to the positioning columns; and an inclined reinforcing rib is arranged between the adjacent side plate and the end plate of the plastic frame.
Preferably, a plurality of vertically arranged openings are arranged in parallel on the front end plate and the rear end plate of the plastic frame, and tabs of any soft package battery cell penetrate through the corresponding openings to be connected with the conductive sheets between the front end plate or the rear end plate of the plastic frame and the plastic cover plates on the corresponding sides.
Preferably, slots are respectively arranged on the front end face and the rear end face of the plastic frame, sampling circuit boards are arranged in the slots in a matched mode, and the sampling circuit boards are connected with the conducting strips; an isolation boss is arranged between the slot and any conducting strip.
Preferably, be equipped with the conducting strip between adjacent the soft packet of electricity core, arbitrary the bottom and the heat-conducting plate cooperation setting of conducting strip.
The utility model has the advantages of that:
1. the bottom of the plastic frame is arranged in a bonding fit with the heat conducting plate through the first assembling part, so that the bonding strength with the heat conducting plate is improved;
2. the front end and the rear end of the plastic frame are arranged in a bonding and matching mode with the heat conducting plate through the second assembling part, and relative to other module sides using laser welding, the plastic frame provides external strength support for the whole frame, and the connecting mode can not cause high-temperature burn to the soft package battery cell inside the shell;
3. the plastic frame is provided with openings on the front end plate and the rear end plate, and the openings are used for installing and guiding tabs when the battery cell is installed, so that the installation of the battery cell is assisted, and the installation efficiency is improved;
4. the oblique reinforcing ribs are arranged between the adjacent side plates and the end plates of the plastic frame, so that the strength of the corners of the shell is enhanced, the integral stress condition of the module is improved, the force on the whole module is smoothly guided to the four positioning holes, and the strength of the module and the fixing strength of the module are ensured;
5. the isolation bosses on the plastic frame are used for isolating different voltage sampling points and preventing adjacent sampling points from contacting to cause safety risk due to installation or module vibration;
6. the plastic frame and the plastic cover plate are matched and connected in a sliding groove mode, and other tools or connection assistance is not needed, so that the method is simple and effective;
7. positioning columns are arranged at four corners of the bottom of the plastic frame, so that the strength of the fixed position of the module is improved;
8. compared with the fine welding of the metal end plate and the metal side plate, the die set shell is connected in a fixed glue coating mode, the matching relation of the two parts can be flexibly adjusted, the plastic frame and the bottom plate heat-conducting plate are matched with the boss through the groove, the bonding area of glue is effectively increased, and the reliability of a bonding part is improved;
9. the heat-conducting strip between adjacent laminate polymer core sets up with the heat-conducting plate cooperation, is that the temperature distribution of guaranteeing every cluster of battery is even.
Drawings
FIG. 1: to the structure decomposition diagram of the utility model.
FIG. 2: to the whole schematic diagram of the utility model.
FIG. 3: do the utility model discloses a module plastic frame and soft-packaged electrical core complex schematic diagram.
FIG. 4: is a schematic diagram of the plastic frame of the utility model.
FIG. 5: do the utility model discloses a plastic frame and heat-conducting plate complex sketch map.
FIG. 6: is a partial enlarged view of the point C of fig. 5 of the present invention.
FIG. 7: is a partial enlarged cross-sectional view at D of fig. 5 of the present invention.
FIG. 8: is a partial enlarged view of the position B in figure 4 of the present invention.
FIG. 9: do the utility model discloses a plastic cover plate structure sketch map.
FIG. 10: fig. 1 is a partially enlarged view of a portion a of the present practical example.
In the figure: 1, soft packaging a battery cell; 2. a heat conducting plate; 3. a plastic frame; 4. a plastic cover plate; 5. a positive and negative electrode protection cover; 6, conducting strips; 8. a first boss; 9. a first groove; 10. a second groove; 11. a second boss; 12. a trapezoidal table; 13. a first trapezoidal groove; 14. a chute; 15. a second dovetail groove; 16. a positioning column; 17. positioning holes; 18. oblique reinforcing ribs; 19. an opening; 20. a slot; 21. isolating the boss; 22. a heat conductive sheet; 23 sampling the circuit board; 24 low-voltage communication port.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be noted that the drawings of the present invention are simplified and use non-precise ratios, and are only used for the purpose of facilitating and clearly assisting the description of the embodiments of the present invention.
Referring to fig. 1 to 9, the laminate polymer battery module that plastic frame 3 of this embodiment surrounds, including the module shell, locate a plurality of laminate polymer core 1 and the heat-conducting plate 2 of cooperation module shell locating laminate polymer core 1 bottom in the module shell side by side, the module shell is including detaining the plastic frame 3 of locating on a plurality of laminate polymer core 1, the bottom of plastic frame 3 sets up through first assembly portion and the cooperation of heat-conducting plate 2, the front end and the rear end of plastic frame 3 set up through the cooperation of second assembly portion and heat-conducting plate 2, the front end and the rear end of plastic frame 3 cooperate respectively and are equipped with plastics apron 4, each part of module shell passes through adhesive connection and fixes.
The plastic frame 3 of electricity core module moulds plastics integrated into one piece through the plastic, and the both sides bottom of plastic frame 3 bonds fixedly through first assembly portion with heat-conducting plate 2. The first assembly part comprises a first boss 8 and a first groove 9 which are sequentially arranged at the bottoms of two sides of the plastic frame 3 from outside to inside, the included angle between the inner side groove wall of the first groove 9 and the horizontal plane is less than 90 ℃, and the edges of two sides of the heat-conducting plate 2 are matched with the first boss 8 and the first groove 9 to be sequentially provided with a second groove 10 and a second boss 11. The first boss 8 and the second groove 10, and the first groove 9 and the second boss 11 are connected and fixed in a matching way through glue coating layers. The boss and the groove of the first assembly part form a Z-shaped cross section, and the inner groove wall of the first groove 9 is an inclined bonding contact surface, so that the bonding strength with the heat conduction plate 2 is improved.
The front end and the rear end of the plastic frame 3 of the battery cell module are fixedly bonded with the bottom heat-conducting plate 2 through the second assembling portion. The second assembly portion is including locating the trapezoidal platform 12 of a plurality of parallels of 2 top surfaces of heat-conducting plate, and trapezoidal platform 12 is parallel with the side of plastic frame 3, and the cooperation of the bottom of the front end board of plastic frame 3 and back end board trapezoidal platform 12 is equipped with first dovetail groove 13, is the utmost point ear installation welding position of plastic frame 3 for the matching position of bonding to heat-conducting plate 2. Through glue film cooperation fixed connection between first dovetail groove 13 and the trapezoidal platform 12, bond with plane matched with bonding contact surface and heat-conducting plate 2 through the inclined plane, provide the external strength for whole frame and support, this connected mode can not cause the high temperature burn to the inside electric core of casing (compare in the laser welding of other module sides).
The front end plate and the rear end plate of the plastic frame 3 of the battery cell module are provided with a plurality of vertically arranged openings 19 side by side, and the tabs can be directly and smoothly loaded from the openings 19 at the two ends when the soft package battery cell 1 is installed. The opening 19 can be set as a straight groove and an inclined groove, and is used for installing and guiding the pole lug during the installation of the battery cell. Meanwhile, the battery cell lugs connected in series and the battery cell lugs connected in parallel are different in direction, and an isolation area with a larger distance is arranged, so that safety risks such as short circuit and the like caused by joints between the battery cell lugs in the installation process and after the installation is finished can be avoided. Can carry out utmost point ear welding after the installation is accomplished, the utmost point ear of soft-packaged electrical core 1 passes the utmost point ear installation welding department of plastic frame 3, stretches out to the face of weld. Be equipped with conducting strip 22 between adjacent soft-packaged electrical core 1, the bottom and the cooperation of heat-conducting plate 2 of arbitrary conducting strip 22 set up, and conducting strip 22 can set up to 0.2 mm's two-sided gum heat conduction gasket.
Be equipped with oblique strengthening rib 18 between the adjacent curb plate of the plastic frame 3 of electricity core module and end plate, four angles departments of plastic frame 3 all are equipped with oblique strengthening rib 18, and the intensity of reinforcing casing edge department improves the whole atress condition of module, with the force on the whole module in the same direction as four locating hole 17 departments, guarantee module intensity and module fixed strength.
Four corners of the bottom of the plastic frame 3 of the battery cell module are provided with positioning columns 16, the four corners of the heat-conducting plate 2 are respectively provided with positioning holes 17 corresponding to the positioning columns 16, and the positioning columns 16 are embedded into the positioning holes 17, so that the strength of the fixed positions of the module is improved. One end of the positioning column 16 connected with the heat-conducting sheet 22 is longer than a small part of the positioning hole 17, and the positioning column 16 protruding out of the small part is matched with the heat-conducting sheet 22 to play a positioning role.
Set up slot 20 on the preceding terminal surface of the plastic frame 3 of electricity core module and the rear end face respectively for sampling circuit board 23 passes, carries out voltage sampling on the conductive copper sheet of module, and be equipped with isolation boss 21 between slot 20 and arbitrary conducting strip 6, be used for keeping apart different voltage sampling points, prevent that installation or module vibration from leading to adjacent sampling department contact, cause the safety risk.
The front end plate and the rear end plate of the plastic frame 3 of the battery cell module are respectively provided with sliding grooves 14 towards the two sides of the corresponding end, the sliding grooves 14 are matched with the two side edges of the corresponding plastic cover plate 4, the bottom of the material cover plate corresponds to the trapezoidal platform 12 and is provided with a second trapezoidal groove 15, the two plastic cover plates 4 are all installed on the plastic frame 3 through the sliding grooves 14, other tools or connection modes are not needed, and the operation is simple and effective.
The front end of the plastic frame 3 of the battery cell module is provided with a positive and negative protective cover 5 which is positioned at two sides of the slot 20.
The plastic frame 3 one end of electric core module is provided with low pressure communication mouth 24 for the installation communication socket, and communication socket is wrapped up in the opening 19 department of plastic frame 3 completely to reach the protection effect.
Inside if adopting the pencil, just can not avoid needing to reserve pencil space and fixing device in the electric core module, then use PCB sampling board to replace several lines, will improve space utilization greatly to electric core module assembly process has been simplified, electric core module reliability is improved. In the design process of the PCB, nickel sheets are arranged on the positions, corresponding to the soft-package battery cell 1 in series-parallel connection, of the PCB sampling plate and used for laser welding of battery cell tabs.
The output positions of the anode and the cathode of the module adopt lead output, the lead is connected on the nickel sheet through compression joint or ultrasonic welding, and the nickel sheet and the 1 pole lug of the soft-package battery cell are welded through laser.
Be provided with the plastic uptake safety cover around the soft-packaged electrical core 1 of module for protection soft-packaged electrical core 1 improves the rate of utilization.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a laminate polymer battery module that plastic frame surrounded, includes the module shell, locates a plurality of laminate polymer battery cores in the module shell side by side and cooperates the module shell to locate the heat-conducting plate of laminate polymer battery core bottom, its characterized in that: the module shell is including detaining the plastic frame who locates on a plurality of soft-packaged electrical core, the bottom of plastic frame sets up through first assembly portion and heat-conducting plate cooperation, the front end and the rear end of plastic frame set up through second assembly portion and heat-conducting plate cooperation, the front end and the rear end of plastic frame cooperate respectively to be equipped with the plastics apron.
2. The plastic frame surrounded laminate polymer battery module according to claim 1, wherein: first assembly portion includes first boss and the first recess of locating plastic frame both sides bottom in order from the extroversion, heat-conducting plate both sides edge cooperation first boss and first recess are equipped with second recess and second boss in order.
3. The plastic frame surrounded laminate polymer battery module according to claim 2, wherein: the included angle between the inner side groove wall of the first groove and the horizontal plane is less than 90 degrees.
4. The plastic frame surrounded laminate polymer battery module according to claim 2, wherein: a glue layer is arranged between the first boss and the second groove, and a glue layer is arranged between the first groove and the second boss.
5. The plastic frame surrounded laminate polymer battery module according to claim 1, wherein: the second assembly portion is including locating the trapezoidal platform of a plurality of parallels of heat conduction plate top surface, trapezoidal platform is parallel with the side of plastic frame, the cooperation of the bottom of the front end plate of plastic frame and back end plate trapezoidal platform is equipped with first dovetail groove.
6. The plastic frame surrounded laminate polymer battery module according to claim 5, wherein: the front end plate and the rear end plate of the plastic frame are respectively provided with sliding chutes towards the two sides of the corresponding ends, and the sliding chutes are matched with the two sides of the corresponding plastic cover plate; and a second trapezoidal groove is formed in the bottom of the plastic cover plate corresponding to the trapezoidal table.
7. The plastic frame surrounded laminate polymer battery module according to claim 1, wherein: positioning columns are arranged at four corners of the bottom of the plastic frame, and positioning holes are respectively arranged at the four corners of the heat-conducting plate corresponding to the positioning columns; and an inclined reinforcing rib is arranged between the adjacent side plate and the end plate of the plastic frame.
8. The plastic frame surrounded laminate polymer battery module according to claim 1, wherein: the front end plate and the rear end plate of the plastic frame are provided with a plurality of vertically arranged openings in parallel, and the tabs of any soft package battery cell penetrate through the corresponding openings and are connected with the conductive sheets between the front end plate or the rear end plate of the plastic frame and the plastic cover plate on the corresponding side.
9. The plastic frame surrounded laminate polymer battery module according to claim 8, wherein: slots are respectively arranged on the front end surface and the rear end surface of the plastic frame, sampling circuit boards are arranged in the slots in a matched mode, and the sampling circuit boards are connected with the conducting strips; an isolation boss is arranged between the slot and any conducting strip.
10. The plastic frame surrounded laminate polymer battery module according to claim 1, wherein: and heat conducting fins are arranged between the adjacent soft package battery cores, and the bottom of each heat conducting fin is matched with the heat conducting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920818937.8U CN209912923U (en) | 2019-05-31 | 2019-05-31 | Laminate polymer battery module that plastic frame surrounded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920818937.8U CN209912923U (en) | 2019-05-31 | 2019-05-31 | Laminate polymer battery module that plastic frame surrounded |
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| Publication Number | Publication Date |
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| CN209912923U true CN209912923U (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920818937.8U Active CN209912923U (en) | 2019-05-31 | 2019-05-31 | Laminate polymer battery module that plastic frame surrounded |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111490209A (en) * | 2020-04-29 | 2020-08-04 | 湖北亿纬动力有限公司 | Laminate polymer battery module and new energy automobile |
| CN112382815A (en) * | 2020-11-30 | 2021-02-19 | 珠海格力电器股份有限公司 | Laminate polymer battery module frame subassembly, battery pack and new energy automobile |
| CN115799769A (en) * | 2022-06-29 | 2023-03-14 | 陕西长风动力有限公司 | A non-welded series-parallel design of soft-pack batteries |
-
2019
- 2019-05-31 CN CN201920818937.8U patent/CN209912923U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111490209A (en) * | 2020-04-29 | 2020-08-04 | 湖北亿纬动力有限公司 | Laminate polymer battery module and new energy automobile |
| CN112382815A (en) * | 2020-11-30 | 2021-02-19 | 珠海格力电器股份有限公司 | Laminate polymer battery module frame subassembly, battery pack and new energy automobile |
| CN115799769A (en) * | 2022-06-29 | 2023-03-14 | 陕西长风动力有限公司 | A non-welded series-parallel design of soft-pack batteries |
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