CN214280091U - Casing and power battery - Google Patents
Casing and power battery Download PDFInfo
- Publication number
- CN214280091U CN214280091U CN202120267947.4U CN202120267947U CN214280091U CN 214280091 U CN214280091 U CN 214280091U CN 202120267947 U CN202120267947 U CN 202120267947U CN 214280091 U CN214280091 U CN 214280091U
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- Prior art keywords
- bottom plate
- reinforcement
- housing
- reinforcements
- rib
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- 230000002787 reinforcement Effects 0.000 claims description 53
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000003351 stiffener Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 230000003014 reinforcing effect Effects 0.000 description 90
- 230000017525 heat dissipation Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 10
- 239000003292 glue Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002470 thermal conductor Substances 0.000 description 1
Images
Classifications
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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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- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The application discloses casing and power battery, the casing include bottom plate and fixed connection in the curb plate of bottom plate, the bottom plate with the curb plate encloses to close and forms a cavity, the cavity is used for placing electric core, the bottom plate include the bottom plate body and set up in at least one rib on the bottom plate body, at least one rib includes the rib body and to following the perpendicular to a plurality of bellyings of curb plate direction is bellied, along the perpendicular to the direction of curb plate, the rib body is in orthographic projection's width on the bottom plate body with a plurality of bellyings are in orthographic projection's width is the same on the bottom plate body. This application includes the rib body and a plurality of bellying through setting up the rib, improves the heat radiating area of casing, increases electric core radiating effect, and sets up the rib body orthographic projection's on the bottom plate body width and a plurality of bellying orthographic projection's width is the same on the bottom plate body, has improved the intensity and the stability of casing.
Description
Technical Field
The application relates to the technical field of power battery shells, in particular to a shell and a power battery.
Background
With the urgent need of world energy sources, power batteries are associated with more and more technical fields due to the advantages of large energy density, long cycle life and the like, and are particularly widely applied to the electric automobile industry at present.
In the process of producing the power battery, the power battery is usually produced by installing the battery core into a shell with a smooth surface. However, the surface area of the case with a smooth surface is small, the power battery cannot sufficiently dissipate heat in time when working, and the case is broken due to insufficient strength during processing, which leads to reduced working efficiency and low safety of the power battery.
Therefore, it is urgently needed to provide a casing and a power battery to solve the technical problems of poor heat dissipation effect and poor strength of the power battery caused by the smooth surface of the casing in the prior art.
SUMMERY OF THE UTILITY MODEL
The application provides a casing and power battery aims at solving the technical problem that the power battery's that exists among the prior art because the casing surface is smooth leads to radiating effect and intensity are not good.
In a first aspect, the present application provides a housing, the housing includes a bottom plate and a side plate fixedly connected to the bottom plate, the bottom plate and the side plate enclose to form a cavity, the cavity is used for placing an electric core, the bottom plate includes a bottom plate body and at least one reinforcing part arranged on the bottom plate body, the at least one reinforcing part includes a reinforcing part body and is towards following a plurality of protruding parts protruding in the extending direction of the bottom plate, along the extending direction of the bottom plate, the reinforcing part body is in the width of orthographic projection on the bottom plate body is the same as the width of orthographic projection on the bottom plate body.
In one possible implementation manner of the present application, the bottom plate includes a plurality of reinforcing portions, the plurality of reinforcing portions includes at least one first reinforcing portion and at least one second reinforcing portion, and an included angle between an extension line of the at least one first reinforcing portion and an extension line of the at least one second reinforcing portion is 0 ° to 90 °.
In one possible implementation of the present application, the bottom plate body includes an inner surface and an outer surface, and the plurality of reinforcements includes at least one inner reinforcement fixedly connected to the inner surface and/or at least one outer reinforcement fixedly connected to the outer surface.
In one possible implementation of the present application, the plurality of reinforcements are arranged in a spiral.
In one possible implementation manner of the present application, the plurality of reinforcing parts include a plurality of first reinforcing parts and a plurality of second reinforcing parts, the lengths of the first reinforcing parts in the plurality of first reinforcing parts are the same, and the lengths of the second reinforcing parts in the plurality of second reinforcing parts are the same.
In one possible implementation of the present application, the at least one reinforcement is 0.3mm to 1.5mm in height in a direction perpendicular to the base plate.
In one possible implementation manner of the present application, the width of the orthographic projection of the reinforcement body on the bottom plate body is 0.5mm-50 mm.
In one possible implementation of the present application, the housing is made of aluminum
In a possible implementation manner of the present application, the casing further includes a heat conducting adhesive, and two sides of the heat conducting adhesive are respectively attached to the bottom plate and the battery core.
In a second aspect, the present application further provides a power battery, including the housing in any one of the possible implementations of the first aspect.
This application has increased the surface area of bottom plate through set up at least one rib on the bottom plate, promptly: the heat dissipation area of the shell is increased, and the purpose of improving the heat dissipation effect of the battery cell is further achieved; meanwhile, the deformation resistance of the shell can be enhanced by arranging at least one reinforcing part, so that the strength of the shell is enhanced; and, this application includes the rib body and to following the perpendicular to through setting up the rib the bellied a plurality of bellyings of curb plate direction further improve the heat radiating area of casing, increase electric core radiating effect, and set up rib body orthographic projection's width on the bottom plate body and a plurality of bellyings orthographic projection's width is the same on the bottom plate body, has further improved the intensity and the stability of casing.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a housing provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a first base plate according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a second base plate according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a first arrangement of reinforcing portions according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a second arrangement of reinforcing portions according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of a third arrangement of reinforcing parts according to an embodiment of the present disclosure;
FIG. 7 is a schematic structural diagram of a fourth arrangement of reinforcing parts according to an embodiment of the present disclosure;
FIG. 8 is a schematic structural diagram of a first arrangement of reinforcing parts according to an embodiment of the present disclosure;
FIG. 9 is a schematic structural diagram of a second arrangement of the reinforcing part according to the embodiment of the present application;
fig. 10 is a schematic structural diagram of a third arrangement manner of the reinforcing part according to the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application. 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes are not set forth in detail in order to avoid obscuring the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
The embodiment of the application provides a shell and a power battery, and the shell and the power battery are explained in detail below.
First, it should be noted that: the housing in the embodiment of the present application may have a cylindrical shape, a rectangular parallelepiped shape, or another polygonal shape, and for convenience of description, the embodiment of the present application is described by taking the rectangular parallelepiped housing as an example. Specifically, the length of the shell in the embodiment of the application is 200mm-1200mm, the width is 20mm-300mm, and the height is 20mm-300 mm.
As shown in fig. 1, the present application provides a casing 10, where the casing 10 includes a bottom plate 100 and a side plate 200 fixedly connected to the bottom plate 100, the bottom plate 100 and the side plate 200 enclose to form a cavity 11, the cavity 11 is used for placing an electric core, where the side plate 200 is fixedly connected to the bottom plate 100, and the bottom plate 100 is used for supporting the electric core. The bottom plate 100 includes a bottom plate body 110 and at least one reinforcing part 120 disposed on the bottom plate body 110, as shown in fig. 1 and 7, the reinforcing part 120 includes a reinforcing part body 121 and a plurality of protrusions 122 protruding in a direction perpendicular to the side plate 200. The width of the reinforcement body 121 orthographically projected on the bottom plate body 110 is the same as the width of the plurality of protrusions 122 orthographically projected on the bottom plate body 110 in a direction perpendicular to the side plates 200.
The present embodiment increases the surface area of the bottom plate 100 by providing at least one reinforcement 120 on the bottom plate 100, that is: the heat dissipation area of the shell 10 is increased, and the purpose of improving the heat dissipation effect of the battery cell is further achieved; meanwhile, the deformation resistance of the shell 10 can be enhanced by providing at least one reinforcing part 120, so that the strength of the shell 10 is enhanced; in addition, in the embodiment of the application, the reinforcing part 120 includes the reinforcing part body 121 and the plurality of protruding parts 122 protruding in the direction perpendicular to the side plate 200, so that the heat dissipation area of the casing 10 is further increased, the heat dissipation effect of the battery cell is increased, the width of the orthographic projection of the reinforcing part body 121 on the bottom plate body 110 is the same as the width of the orthographic projection of the plurality of protruding parts 122 on the bottom plate body 110, and the strength and the stability of the casing 10 are further improved.
It should be understood that: the projection of the protrusion 122 on the bottom plate body 110 may be any one of rectangular, triangular, arc-shaped, or trapezoidal.
Further, in some embodiments of the present application, the width of the reinforcement body 121 orthographically projected on the chassis body 110 is 0.5mm to 50 mm.
Preferably, the width of the reinforcement body 121 orthographically projected on the chassis body 110 is 2 mm.
Further, in some embodiments of the present application, as shown in fig. 3, the base plate 100 includes a plurality of reinforced portions 120, the plurality of reinforced portions 120 includes at least one first reinforced portion 1201 and at least one second reinforced portion 1202, and an angle between the at least one first reinforced portion 1201 and the at least one second reinforced portion 1202 is 0 ° to 90 °.
The plurality of reinforcing parts 120 comprise at least one first reinforcing part 1201 and at least one second reinforcing part 1202, and the included angle between the at least one first reinforcing part 1201 and the at least one second reinforcing part 1202 is 0-90 degrees, so that the deformation resistance of the shell 10 along multiple directions is improved, and the strength and the stability of the shell 10 are further improved.
Specifically, as shown in fig. 3, in some embodiments of the present application, the reinforcing part 120 includes one first reinforcing part 1201 and one second reinforcing part 1202, and an angle between an extension line of the first reinforcing part 1201 and an extension line of the second reinforcing part 1202 is 0 °, that is: the first reinforcement part 1201 is parallel to the second reinforcement part 1202.
Further, as shown in fig. 4, the reinforcing part 120 includes a plurality of first reinforcing parts 1201 parallel to each other and a plurality of second reinforcing parts 1202 parallel to each other, and the first reinforcing parts 1201 are parallel to the second reinforcing parts 1201.
Specifically, in some embodiments of the present application, as shown in fig. 4, the first reinforcement part 1201 and the second reinforcement part 1202 may be sequentially disposed at intervals.
In other embodiments of the present application, as shown in fig. 5, the bottom plate body 110 includes a first region 1101 and a second region 1102 adjacent to the first region 1101, the first reinforcement portion 1201 is disposed in the first region 1101, and the second reinforcement portion 1202 is disposed in the second region 1102.
As shown in fig. 6, in some other embodiments of the present application, the reinforcing portion 120 includes a first reinforcing portion 1201 and a second reinforcing portion 1202, and the first reinforcing portion 1201 is parallel to the two parallel side edges 200 of the housing 10, and the second reinforcing portion 1202 is perpendicular to the first reinforcing portion 1201, that is: the angle between the first 1201 and second 1202 reinforcements is 90 °.
It should be understood that: in some embodiments of the present application, an included angle between the first reinforcing portion 1201 and the second reinforcing portion 1202 may be 30 °, 45 °, 60 °, 80 °, and the like, which is not described herein.
Further, when the bottom plate 100 includes a plurality of the reinforcement parts 120, the distance between each adjacent two reinforcement parts 120 is greater than or equal to 1 mm.
By setting the distance between two adjacent reinforcing parts 120 to be greater than or equal to 1mm, the surface area of the bottom plate 100 can be prevented from being reduced when the two adjacent reinforcing parts 120 are too close, and the heat dissipation effect of the housing 10 can be further improved.
And it should be understood that: the distance between two adjacent reinforced parts 120 should be adjusted according to the number of the reinforced parts 120, specifically: when the number of the reinforcing portions 120 is large, the distance between two adjacent reinforcing portions 120 is small, and when the number of the reinforcing portions 120 is small, the distance between two adjacent reinforcing portions 120 is large.
It should also be understood that: the plurality of reinforcing parts 120 are disposed at equal intervals. With the above arrangement, the uniformity of the mass distribution of the base plate 100 can be improved, and the reliability of the housing 10 can be further improved.
Further, as shown in fig. 3 to 5, in some embodiments of the present application, the lengths of the first reinforcing portions 1201 are the same and the lengths of the second reinforcing portions 1202 are the same along the extending direction of the bottom plate body 110, and by the above arrangement, the manufacturing process can be simplified and the manufacturing efficiency can be improved.
In order to further improve the strength of the bottom plate 100, in some embodiments of the present application, as shown in fig. 7, the plurality of reinforcing parts 120 are arranged in a spiral shape, specifically, the bottom plate 100 includes a plurality of first reinforcing parts 1201 and a plurality of second reinforcing parts 1202 perpendicular to the first reinforcing parts 1201, and the lengths of the first reinforcing parts 1201 and the second reinforcing parts 1202 are gradually reduced from the edge of the bottom plate body 110 to the center line of the bottom plate body 110. With the above arrangement, the surface area of the base plate 100 can be further increased, and the heat dissipation capability of the housing 10 can be improved.
Further, in some embodiments of the present application, the height of the reinforcement 120 is 0.3mm to 1.5mm in a direction perpendicular to the base plate 100.
Preferably, in some embodiments of the present application, the height of the reinforcement 120 is 0.7 mm.
It should be understood that: in some embodiments of the present application, as shown in fig. 7, the orthographic projection of the reinforcing portion 120 on the bottom plate body 110 is rectangular, and the manufacturing method is simple.
It should also be understood that: the shape of the cross-sectional area of the reinforcing part 120 in the extending direction of the side plate 200 may be any one of an arc shape, a rectangular shape, a triangular shape, or a trapezoidal shape.
Further, as shown in fig. 8 to 10, the bottom plate body 110 includes an inner surface 111 and an outer surface 112, wherein the inner surface 111 refers to a surface of the bottom plate body 110 on a side close to the cavity 11, and the outer surface 112 refers to a surface of the bottom plate body 110 on a side away from the cavity 11;
when the base panel 100 is provided with a plurality of reinforcement portions 120, the reinforcement portions 120 include at least one inner reinforcement portion 1203, and/or at least one outer reinforcement portion 1204, the at least one inner reinforcement portion 1203 being fixedly attached to the inner surface 111, and the at least one outer reinforcement portion 1204 being fixedly attached to the outer surface 112.
Specifically, as shown in fig. 8, the reinforcing part 120 includes a plurality of inner reinforcing parts 1203, the plurality of inner reinforcing parts 1203 are fixedly connected to the inner surface 111, and the plurality of inner reinforcing parts 1203 are disposed at equal intervals.
With the above arrangement, the outer surface 102 of the bottom plate 100 is smooth, so that the housing 10 can be easily placed, and the reliability of the housing 10 can be improved.
As shown in fig. 9, the reinforcing part 120 includes a plurality of outer reinforcing parts 1204, the plurality of outer reinforcing parts 1204 are fixedly connected to the outer surface 112, and the plurality of outer reinforcing parts 1204 are disposed at equal intervals.
Through the arrangement, the reinforcing part 1204 can be prevented from occupying the space of the cavity 11, more battery cells can be filled in the cavity 11, and the accommodating space of the shell 10 is increased.
As shown in fig. 10, the reinforcement portion 120 includes a plurality of inner reinforcement portions 1203 and a plurality of outer reinforcement portions 1204, the plurality of inner reinforcement portions 1203 being fixedly attached to the inner surface 111, and the plurality of outer reinforcement portions 1204 being fixedly attached to the outer surface 112. And the inner reinforcement portions 1203 and the outer reinforcement portions 1204 are alternately disposed at intervals.
Further, in some embodiments of the present application, the housing 10 is made of aluminum. Aluminum has a thermal conductivity of 237W/(m · K), and is a good thermal conductor, and can further improve the heat dissipation efficiency of the case 10. Meanwhile, the shell 10 is made of aluminum, so that the corrosion resistance is higher, and the service life of the shell is prolonged; and the aluminum has proper firmness, so that the shell 10 is not easy to bulge and deform; further, the aluminum has lighter weight, and the mass energy density of the battery cell can be improved.
Further, in order to further improve the heat dissipation efficiency of the casing 10, in some embodiments of the present application, the casing 10 further includes a thermal conductive adhesive, and two sides of the thermal conductive adhesive are respectively attached to the bottom plate 100 and the battery cell.
Through setting up the heat conduction glue, when electric core and heat conduction glue contact, the heat of absorption electric core that the heat conduction glue can be quick to give bottom plate 100 with heat transfer, finally outside heat dissipation to casing 10 with the heat through bottom plate 100, improved casing 10's radiating efficiency, improved casing 10's radiating effect.
Meanwhile, through the arrangement of the heat-conducting glue, the stability of the battery cell in the shell 10 can be further improved, when the shell 10 receives external force impact or impact, the heat-conducting glue can provide buffering for the battery cell, the battery cell is prevented from being damaged, and the technical effect of improving the reliability of the shell 10 is achieved.
In a second aspect, the embodiment of the present application further provides a power battery, where the power battery includes a housing 10, and the housing 10 is the housing 10 in any of the embodiments described above.
In summary, the embodiment of the present application increases the surface area of the bottom plate 100 by providing the plurality of reinforcements 120 on the bottom plate 100, that is: the heat dissipation area of the shell 10 is increased, and the purpose of improving the heat dissipation effect of the battery cell is further achieved; meanwhile, the plurality of reinforcing parts 120 can strengthen the deformation resistance of the shell 10, thereby enhancing the strength of the shell 10; in addition, the plurality of reinforcing parts 120 are arranged to comprise at least one first reinforcing part 1201 and at least one second reinforcing part 1202, and the included angle between the at least one first reinforcing part 1201 and the at least one second reinforcing part 1202 is 0-90 degrees, so that the deformation resistance of the shell 10 along multiple directions is improved, and the strength and the stability of the shell 10 are further improved; in addition, the application improves the applicability of the shell 10 by arranging the reinforcing part 120 to comprise at least one inner reinforcing part 1203 and/or at least one outer reinforcing part 1204; further, the heat dissipation efficiency of the casing 10 can be further improved by disposing the heat conductive adhesive between the battery cell and the bottom plate 100.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, and are not described herein again. In specific implementation, the above units or structures may be implemented as independent entities, or may be combined arbitrarily and implemented as one or several entities, which is not described herein again.
The above detailed description is provided for a housing and a power battery provided in the embodiments of the present application, and specific examples are applied herein to explain the principles and embodiments of the present application, and the above description of the embodiments is only used to help understand the structure and core ideas of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. The utility model provides a shell, the casing include bottom plate and fixed connection in the curb plate of bottom plate, the bottom plate with the curb plate encloses to close and forms a cavity, the cavity is used for placing electric core, its characterized in that, the bottom plate include the bottom plate body and set up in at least one rib on the bottom plate body, at least one rib includes the rib body and to following the perpendicular to a plurality of bellyings of curb plate direction arch, along the perpendicular to the direction of curb plate, the rib body is in orthographic projection's width on the bottom plate body with a plurality of bellyings are in orthographic projection's width is the same on the bottom plate body.
2. The housing of claim 1, wherein the bottom plate comprises a plurality of reinforcements, the plurality of reinforcements comprising at least one first reinforcement and at least one second reinforcement, an angle between an extension of the at least one first reinforcement and an extension of the at least one second reinforcement being 0 ° -90 °.
3. The case of claim 2, wherein the floor body includes an inner surface and an outer surface, and the plurality of reinforcements includes at least one inner reinforcement fixedly attached to the inner surface and/or at least one outer reinforcement fixedly attached to the outer surface.
4. The housing of claim 2, wherein the plurality of reinforcements are arranged in a spiral.
5. The housing of claim 2, wherein the plurality of reinforcements include a plurality of first reinforcements and a plurality of second reinforcements, each first reinforcement of the plurality of first reinforcements being of the same length, each second reinforcement of the plurality of second reinforcements being of the same length.
6. The housing of claim 1, wherein the height in the at least one stiffener is 0.3mm to 1.5mm in a direction perpendicular to the base plate.
7. The housing of claim 1, wherein the width of the reinforcement body orthographically projected on the floor body is 0.5mm to 50 mm.
8. The housing of claim 1, wherein the housing is made of aluminum.
9. The casing of claim 1, further comprising a thermally conductive adhesive, wherein two sides of the thermally conductive adhesive are respectively attached to the bottom plate and the battery cell.
10. A power cell comprising a housing according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120267947.4U CN214280091U (en) | 2021-01-29 | 2021-01-29 | Casing and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120267947.4U CN214280091U (en) | 2021-01-29 | 2021-01-29 | Casing and power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214280091U true CN214280091U (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120267947.4U Active CN214280091U (en) | 2021-01-29 | 2021-01-29 | Casing and power battery |
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| CN (1) | CN214280091U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024021249A1 (en) * | 2022-07-28 | 2024-02-01 | 宁德时代新能源科技股份有限公司 | Battery case, battery cell, battery and electric device |
-
2021
- 2021-01-29 CN CN202120267947.4U patent/CN214280091U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024021249A1 (en) * | 2022-07-28 | 2024-02-01 | 宁德时代新能源科技股份有限公司 | Battery case, battery cell, battery and electric device |
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Address after: 399 Minghu Road, Jintan District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Ruidefeng Precision Technology Co.,Ltd. Country or region after: China Address before: 399 Minghu Road, Jintan District, Changzhou City, Jiangsu Province Patentee before: Changzhou Redford Precision Technology Co.,Ltd. Country or region before: China |