CN114142134A - Battery pack applying modular box body - Google Patents
Battery pack applying modular box body Download PDFInfo
- Publication number
- CN114142134A CN114142134A CN202111277088.8A CN202111277088A CN114142134A CN 114142134 A CN114142134 A CN 114142134A CN 202111277088 A CN202111277088 A CN 202111277088A CN 114142134 A CN114142134 A CN 114142134A
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- Prior art keywords
- battery
- box body
- side plate
- battery pack
- lower box
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- 238000003825 pressing Methods 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 11
- 239000012790 adhesive layer Substances 0.000 claims 1
- 239000000178 monomer Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- 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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a battery pack applying a modular box body, which comprises a lower box body, a battery core, a pressing strip, a side plate and a heating film, wherein the lower box body is provided with a plurality of battery cells; the lower box body is provided with an upper opening and a side opening, in order to facilitate the closing of the upper opening and the side opening, the side plate is detachably arranged on a flanging of the lower box body, and the side plate is used for closing the side opening; a battery placing cavity with an upper opening is formed between the lower box body and the side plate, a plurality of battery cores are arranged in rows and are horizontally distributed in the battery placing cavity along the direction vertical to the side plate, and any two adjacent battery cores are mutually abutted; the heating film is arranged at the bottom of the battery placing cavity and used for fixing the bottom of the battery cell; according to layering demountable installation at the battery and place the intracavity, press the strip and be used for fixed electric core top. In the invention, the battery pack applying the modularized box body does not need to make a single body into a module; the modular lower box body, the pressing strip and the heating film can effectively fix the battery cell monomer and facilitate maintenance and replacement of the battery cell.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a battery pack applying a modular box body.
Background
The structure and the equipment order of traditional conventional battery package generally do, make into the module with electric core monomer earlier, and materials such as end plate, curb plate, spacer can be used to the duration, through modes such as welding, rivet, tying up and make the module, then fix the battery package with the module installation, the technology is complicated, spare part is many to relate to the cooperation of mould, utensil of examining, increased the cost of battery package. Novel no module or the box of the design theory majority integration of big module in recent years, this make the fixed mode of electric core not throw the ideal, and it is fixed to pass through modes such as encapsulating more, makes the maintenance of battery package repair difficulty heavy.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a battery pack applying a modular box body.
The invention provides a battery pack applying a modular box body, which comprises a lower box body, a battery core, a pressing strip, a side plate and a heating film, wherein the lower box body is provided with a plurality of battery cells;
the lower box body is provided with an upper opening and a side opening, and in order to facilitate the closing of the upper opening and the side opening, flanges extending outwards are arranged at the upper opening and the side opening;
a battery placing cavity with an upper opening is formed between the lower box body and the side plate, a plurality of battery cores are arranged in rows and are horizontally distributed in the battery placing cavity along the direction vertical to the side plate, and any two adjacent battery cores are mutually abutted;
the heating film is arranged on the lower box body, is positioned in the battery placing cavity and is used for fixing the bottom of the battery core;
the pressing strip is detachably arranged in the battery placing cavity, the lower surface of the pressing strip is in contact with the upper surface of the battery core, and the pressing strip is used for fixing the upper part of the battery core, so that the battery core is prevented from moving in the vertical direction, and the battery core is further fixed;
and on one hand, the battery cell is fixed according to the pressing bar, and on the other hand, the wiring support for collecting the wiring harness is provided.
In order to facilitate the placement of the electric cores and the wiring among the electric cores, as a further optimized scheme of the invention, the battery placing cavity comprises a lower fixed cavity and an upper installation cavity, the upper installation cavity is communicated with the lower fixed cavity, and the inner side wall of the upper installation cavity is positioned outside the inner side wall of the lower fixed cavity.
In order to achieve the above function, in some embodiments, the battery placing cavity has a lower inner wall, an upper inner wall, and a transverse connecting surface, the transverse connecting surface is used for connecting the lower inner wall and the upper inner wall, the transverse connecting surface is transversely arranged, and the transverse connecting surface divides the placing cavity into an upper mounting cavity and a lower fixing cavity.
In order to facilitate taking and placing of the battery core, as a further optimized scheme of the invention, the height of the lower fixing cavity is smaller than that of the battery core, namely the height of the transverse connecting surface from the bottom of the battery placing cavity is smaller than that of the battery core, and meanwhile, the height of the battery core is smaller than the sum of the height of the upper mounting cavity and the height of the lower fixing cavity.
In order to increase the strength of the lower box body, as a further optimized scheme of the invention, the lower box body further comprises a support, the support is vertically fixed at the bottom of the lower box body, in the embodiment, the support is preferably fixed in a welding manner, the support divides the battery placing cavity into a first battery placing cavity and a second battery placing cavity, and a row of battery cells are respectively placed in the first battery placing cavity and the second battery placing cavity.
In order to further fix the battery cell, as a further optimized scheme of the invention, the height of the bracket is slightly smaller than that of the battery cell.
For the installation of the convenience of follow-up curb plate, the length of support slightly is less than the total length that one row of electric core in the intracavity was placed to first battery, and then makes electric core relative with the curb plate inconsistent with the curb plate, is convenient for to the fixed of electric core, and then increases fixed strength.
In some embodiments, the heating film is fixed to the lower case in a bonding manner, and the heating film is fixed to the bottom of the battery cell in a bonding manner.
As a further optimized solution of the present invention, the pressing bar is made of an insulating material, which may be a plastic material or a metal material, and then subjected to an insulating treatment, such as applying an insulating coating on the surface of the pressing bar.
In some embodiments, the battery storage box further comprises an upper cover, the upper cover is detachably mounted on the lower box body and the side plate, the upper cover is used for closing the battery storage cavity, sealing strips are arranged at the connecting parts of the upper cover and the lower box body and the side plate, and the upper cover is detachably mounted on the lower box body and the side plate through screws.
According to the battery pack applying the modular box body, the plurality of battery monomers are directly installed in the box body, the monomers are not required to be made into modules, module materials such as end plates, spacers and side plates can be omitted, the production cost is effectively reduced, and the assembly process is simplified; the modular lower box body, the pressing strips and the heating film with double-sided back glue can effectively fix the battery cell monomer and facilitate maintenance and replacement of the battery cell.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an exploded view of an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar designations denote like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Example one
As shown in fig. 1-2, the battery pack using the modular case includes a lower case 1, a battery cell 5, a pressing bar 2, a side plate 3 and a heating film 4;
specifically, the lower box body 1 is made of aluminum alloy or automobile-specific steel, HC370LA with a thickness of 2mm is used in the embodiment, the lower box body 1 is provided with an upper opening 100 and a side opening 101, the upper opening 100 and the side opening 101 are provided with flanges 10 extending outwards, the side plate 3 is detachably fixed on the lower box body 1, the side plate 3 is fixed on the flanges 10 of the lower box body 1 through bolts, and the side plate 3 is used for closing the side opening 101;
specifically, in order to increase the sealing performance of the side plate 3 to the side opening 101, a sealing gasket may be added between the side plate 3 and the flange 10 of the lower box body 1, and the sealing gasket may be a rubber gasket;
a battery placing cavity 11 with an upper opening 100 is formed between the lower box body 1 and the side plate 3, a plurality of battery cells 5 are arranged, the plurality of battery cells 5 are horizontally distributed in the battery placing cavity 11 along the direction vertical to the side plate 3, and any two adjacent battery cells 5 are mutually abutted;
in order to facilitate the placement of the battery cells 5 and the wiring between the battery cells 5, in this embodiment, it is preferable that the battery placement cavity 11 includes a lower fixed cavity and an upper installation cavity, the upper installation cavity is communicated with the lower fixed cavity, and the inner side wall of the upper installation cavity is located outside the inner side wall of the lower fixed cavity;
in order to achieve the above functions, it is preferable in this embodiment that the battery placing cavity 11 has a lower inner wall 1100, an upper inner wall 1101 and a transverse connecting surface 1102, the transverse connecting surface 1102 is used for connecting the lower inner wall 1100 and the upper inner wall 1101, the transverse connecting surface 1102 is arranged transversely, and the transverse connecting surface 1102 divides the placing cavity into an upper mounting cavity and a lower fixing cavity;
in order to facilitate taking and placing the battery cell 5, in this embodiment, preferably, the height of the lower fixing cavity is smaller than the height of the battery cell 5, that is, the height of the transverse connection surface 1102 from the bottom of the battery placing cavity 11 is smaller than the height of the battery cell 5, and meanwhile, the height of the battery cell 5 is smaller than the sum of the height of the upper mounting cavity and the height of the lower fixing cavity;
in order to increase the strength of the lower box body 1, the lower box body is preferred in the embodiment, the lower box body further comprises a support 6, the support 6 is vertically fixed at the bottom of the lower box body 1, the preferred support 6 in the embodiment is fixed in a welding mode, the support 6 divides the battery placing cavity 11 into a first battery placing cavity and a second battery placing cavity, the width of the first battery placing cavity is equal to the width of the second battery placing cavity and equal to the width of the battery core 5, the length of the first battery placing cavity is equal to the length of the second battery placing cavity, the length directions of the first battery placing cavity and the second battery placing cavity are perpendicular to the side plate 3, and a row of battery cores 5 are respectively placed in the first battery placing cavity and the second battery placing cavity;
in order to further fix the battery cell 5, in this embodiment, it is preferable that the height of the bracket 6 is slightly smaller than the height of the battery cell 5, specifically, the height of the bracket 6 is equal to the height of the lower fixing cavity, that is, the upper surface of the bracket 6 is in the same plane with the transverse connecting surface 1102;
in order to facilitate the installation of the subsequent side plate 3, the length of the bracket 6 is slightly smaller than the total length of a row of electric cores 5 in the first battery placing cavity, so that the electric cores 5 opposite to the side plate 3 are abutted against the side plate 3, the electric cores 5 are fixed conveniently, and the fixing strength is increased;
the heating film 4 is arranged on the lower box body 1, the heating film 4 is positioned in the battery placing cavity 11, and the heating film 4 is used for fixing the bottom of the battery cell 5;
specifically, the heating film 4 is fixed on the lower box body 1 in a sticking manner, the heating film 4 is fixed at the bottom of the battery cell 5 in a sticking manner, in order to realize the above functions, glue layers are respectively arranged on the upper surface and the lower surface of the heating film 4, the glue layer on the lower surface of the heating film 4 is used for installing the heating film 4 on the lower box body 1, and the glue layer on the upper surface of the heating film 4 is used for sticking and fixing the bottom of the battery cell 5;
the pressing strip 2 is detachably mounted in the battery placing cavity 11, specifically, one end of the pressing strip 2 is detachably mounted on the box body through a screw, the other end of the pressing strip 2 is fixedly detachably mounted on the side plate 3 through a screw, the lower surface of the pressing strip 2 is in contact with the upper surface of the battery cell 5, and the pressing strip 2 is used for fixing the upper part of the battery cell 5, so that the battery cell 5 is prevented from moving in the vertical direction, and the battery cell 5 is further fixed;
fixing the battery cell 5 according to the pressing bar 2 on one hand, and providing a wiring support for collecting wiring harnesses on the other hand;
in the embodiment, the pressing strip 2 is made of plastic material, and the thickness of the pressing strip is 10 mm;
in this embodiment, the pressing bar 2 includes an upper pressing portion 20, an extending portion 21, and a vertical connecting portion 22, a lower surface of the pressing portion abuts against an upper surface of the battery cell 5, a side surface of the vertical connecting portion 22 close to the upper pressing portion 20 abuts against a side surface of the battery cell 5, a lower surface of the extending portion 21 abuts against the transverse connecting surface 1102, and the extending portion 21 is detachably fixed on the transverse connecting surface 1102 by a screw;
specifically, the number of the extending portions 21 and the number of the vertical connecting portions 22 are two, the two vertical connecting portions 22 are respectively located at two ends of the upper pressing portion 20 and are fixedly connected with the upper pressing portion 20, the two vertical connecting portions 22 are located at the same side of the upper pressing portion 20, the two extending portions 21 are respectively fixed at two ends of the two vertical connecting portions 22, the extending portions 21 are fixedly connected with the vertical connecting portions 22, and therefore the lower surface of the pressing bar 2 protrudes upwards, and in the embodiment, the upper pressing portion 20, the extending portions 21 and the vertical connecting portions are integrally formed.
In the working process of the embodiment, firstly, a plurality of battery cells 5 are sequentially placed in a lower box body 1 with a side opening 101 with an upper opening 100, the battery cells 5 are placed in rows, any adjacent battery cells 5 of the battery cells 5 in the same row are mutually abutted, the battery cells 5 are connected in series and parallel in a certain manner, the bottoms of the battery cells 5 are adhered to a heating film 4, the battery cells 5 are placed in two rows, and the two rows of battery cells 5 are respectively positioned at two sides of a bracket 6;
a cushion pad is pasted on the outer side of the battery cell 5 positioned on the outermost side, namely the battery cell 5 positioned at the side opening 101, then a sealing pad is pasted on the flanging 10 of the side opening 101 of the lower box body 1, then the side plate 3 is fixed on the lower box body 1 through a screw, the inner wall of the side plate 3 is abutted against the cushion pad, and the cushion pad on the outer side of the battery cell 5 is used for impacting processing errors and thickness deviation of the battery cell 5, so that the side plate 3 can form extrusion to fix the battery cell 5, and the battery cell 5 is prevented from being deformed due to excessive extrusion;
then, fix the both ends of layering on box 1 and curb plate 3 down through the screw respectively, can place the blotter in the bottom of layering, the blotter can be made for rubber, later weld series connection copper bar and voltage acquisition pencil and install control system again.
Example two
As shown in fig. 3, the present embodiment is different from the above embodiments in that the present embodiment further comprises an upper cover 7, the upper cover 7 is detachably mounted on the lower case 1 and the side plate 3, the upper cover 7 is used for closing the battery placing cavity 11, the connection part of the upper cover 7 with the lower case 1 and the side plate 3 is provided with a sealing strip, and the specific upper cover 7 is detachably mounted on the lower case 1 and the side plate 3 through screws.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A battery pack applying a modular box body is characterized by comprising a lower box body, a battery core, a pressing strip, a side plate and a heating film;
the lower box body is provided with an upper opening and a side opening, in order to facilitate the closing of the upper opening and the side opening, the side plate is detachably arranged on a flanging of the lower box body, and the side plate is used for closing the side opening;
a battery placing cavity with an upper opening is formed between the lower box body and the side plate, a plurality of battery cores are arranged in rows and are horizontally distributed in the battery placing cavity along the direction vertical to the side plate, and any two adjacent battery cores are mutually abutted;
the heating film is arranged at the bottom of the battery placing cavity and used for fixing the bottom of the battery cell;
according to layering demountable installation at the battery and place the intracavity, press the strip and be used for fixed electric core top.
2. The battery pack using the modular case as claimed in claim 1, wherein the battery receiving chamber includes a lower fixing chamber and an upper mounting chamber, the upper mounting chamber is communicated with the lower fixing chamber, and inner sidewalls of the upper mounting chamber are located outside inner sidewalls of the lower fixing chamber.
3. The battery pack using the modular case as claimed in claim 2, wherein the battery placing chamber has a lower inner wall, an upper inner wall and a transverse connecting surface for connecting the lower inner wall and the upper inner wall, the transverse connecting surface being transversely disposed to divide the placing chamber into an upper mounting chamber and a lower fixing chamber.
4. The battery pack using the modular case of claim 2, wherein the lower fixing cavity has a height smaller than that of the battery cell.
5. The battery pack using the modular case as set forth in claim 1, further comprising a bracket vertically fixed to the bottom of the lower case.
6. The battery pack using the modular case of claim 5, wherein the height of the bracket is less than the height of the battery cell.
7. The battery pack using the modular cases as set forth in claim 1, wherein the heating film is fixed to the lower case by adhesion.
8. The battery pack using the modular case as set forth in claim 1, further comprising an upper cover detachably mounted on the lower case and the side plates, the upper cover closing the battery receiving chamber.
9. The battery pack using the modular case as claimed in claim 1, wherein the upper surface of the heating film is provided with an adhesive layer for fixing the battery cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111277088.8A CN114142134A (en) | 2021-10-29 | 2021-10-29 | Battery pack applying modular box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111277088.8A CN114142134A (en) | 2021-10-29 | 2021-10-29 | Battery pack applying modular box body |
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| CN114142134A true CN114142134A (en) | 2022-03-04 |
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|---|---|---|---|
| CN202111277088.8A Pending CN114142134A (en) | 2021-10-29 | 2021-10-29 | Battery pack applying modular box body |
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| CN214013025U (en) * | 2020-11-10 | 2021-08-20 | 潍柴动力股份有限公司 | Heating element, battery box and vehicle |
| CN112635883A (en) * | 2020-11-27 | 2021-04-09 | 北京未来智酷汽车科技有限公司 | New energy automobile battery package |
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