CN211088379U - Battery protection plate and battery pack - Google Patents
Battery protection plate and battery pack Download PDFInfo
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- CN211088379U CN211088379U CN201922278984.0U CN201922278984U CN211088379U CN 211088379 U CN211088379 U CN 211088379U CN 201922278984 U CN201922278984 U CN 201922278984U CN 211088379 U CN211088379 U CN 211088379U
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- circuit board
- connecting portion
- battery
- battery protection
- reinforcing plate
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The application provides a battery protection board, which comprises a circuit board, wherein the circuit board comprises a conducting layer and an insulating layer, and the conducting layer comprises a substrate and a metal layer; the metal layers are arranged on two sides of the substrate, and the insulating layers are attached to the metal layers; at least one side surface of the circuit board is provided with a first component placing area; the conducting layer comprises a circuit connecting portion and an electric core connecting portion, the circuit connecting portion is used for connecting electronic components, the insulating layer is arranged on the circuit connecting portion, the electric core connecting portion is used for connecting an electric core terminal, and the electric core connecting portion is exposed out of the circuit board and extends outwards from the side edge of the first component placing area. Above-mentioned battery protection board sets up electric core connecting portion as the partly of conducting layer, avoids electric core connecting portion to occupy the regional area of first component placement for the battery protection board is not changing under the condition of original size increase components and parts and is placed the region. The application also provides a battery pack with the battery protection plate.
Description
Technical Field
The application relates to the field of batteries, in particular to a battery protection plate and a battery assembly.
Background
In the existing lithium battery protection board, the types of the protection board can be divided into three types: a rigid Circuit board (PCB), a Flexible Circuit board (FPC), and a rigid-flex board, wherein the Flexible Circuit board is the most commonly used material due to its moderate price and good flexibility. Referring to fig. 12, in a conventional protection plate structure, a nickel plate for connecting a tab of an electrical core and a component are placed on the same horizontal plane, but because the width of a battery protection plate is narrow and the area is small, the placement of the nickel plate occupies a partial area, which generally causes difficulty in placing and routing the component.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a battery upper protective plate capable of increasing a component placement area based on an original size and a battery pack having the same.
A battery protection board comprises a circuit board, wherein the circuit board comprises a conducting layer and an insulating layer, and the conducting layer comprises a substrate and a metal layer; the metal layers are arranged on two sides of the substrate, and the insulating layer is attached to the metal layers; at least one side surface of the circuit board is provided with a first component placing area; the conducting layer comprises a circuit connecting portion and an electric core connecting portion, the circuit connecting portion is used for connecting electronic components, the insulating layer is arranged on the circuit connecting portion, the electric core connecting portion is used for connecting an electric core terminal, and the electric core connecting portion exposes the circuit board and extends outwards from the side edge of the first component placing area.
Optionally, the circuit board is a flexible circuit board, the battery protection board includes a first reinforcing plate disposed on the circuit board for supporting the circuit board, one side of the circuit board away from the first reinforcing plate is the first component placement area, and the battery core connection portion is located on one side of the first reinforcing plate away from the circuit board.
Optionally, a bending area is arranged between the circuit connecting portion and the battery core connecting portion, and the battery core connecting portion is bent towards one side, away from the circuit board, of the first reinforcing plate along the bending area.
Optionally, the battery protection board further includes an insulating member, and the insulating member is clamped between the cell connecting portion and the first reinforcing plate.
Optionally, the number of the battery cell connecting portions is two, and the battery cell connecting portions are arranged at the side edge of the circuit board at intervals.
Optionally, a metal protection layer is disposed on a surface of the battery cell connecting portion, and is used for preventing oxidation or damage of the metal layer on the battery cell connecting portion.
Optionally, the battery protection shield includes first stiffening plate for supporting the circuit board, the circuit board includes first installation department and second installation department, first installation department covers a side of first stiffening plate, the another side of first installation department does first component places the region, the second installation department set up in the side of first installation department, two electricity core connecting portion set up respectively in the both ends of first installation department.
Optionally, the battery protection board further includes a second reinforcing plate, the second reinforcing plate is stacked on the first reinforcing plate and faces away from one side of the circuit board, the circuit board faces the second reinforcing plate, the second reinforcing plate extends and covers the second reinforcing plate, the electric core connecting portion is located on the second reinforcing plate, and one side of the circuit board, which faces away from the second reinforcing plate, is a second component placing area.
Optionally, the battery protection board further includes an insulating member, and the insulating member is clamped between the cell connecting portion and the second reinforcing plate.
Optionally, the circuit board extends toward the other side surface of the first reinforcing plate and covers the first reinforcing plate to form a second component placement area, and the cell connecting portion is located in the second component placement area.
A battery assembly comprises a battery core and a lug, wherein the lug extends out of one side of the battery core, the battery assembly further comprises the battery protection plate, and the lug is connected with a battery core connecting part of the battery protection plate.
Above-mentioned battery protection shield sets up electric core connecting portion as the partly of conducting layer to electric core connecting portion expose the circuit board, have avoided electric core connecting portion to occupy the area that first component placed the region, make the battery protection shield increase components and parts and place the region under the condition that does not change original size.
Drawings
Fig. 1 is a schematic structural view of a battery protection plate in a first embodiment.
Fig. 2 is a schematic structural view of the battery protection plate of fig. 1 in another direction.
Fig. 3 is a schematic perspective view of the battery protection board of fig. 1 bent to the reinforcing plate at the cell connecting portion.
Fig. 4 is a schematic structural view of a battery protection plate in a second embodiment.
Fig. 5 is a schematic structural view of the battery protection plate of fig. 4 in another direction.
Fig. 6 is a schematic structural view of a battery protection plate in a third embodiment.
Fig. 7 is a schematic structural diagram of a battery protection plate in an expanded embodiment.
Fig. 8 is a schematic structural view of a battery protection panel in an expanded condition in the fourth embodiment.
Fig. 9 is a structural view illustrating the battery protection plates of fig. 8 in a combined state.
Fig. 10 is a schematic structural view of a battery pack in a fifth embodiment.
Fig. 11 is a schematic cross-sectional view of the circuit board.
Fig. 12 is a schematic structural view of a battery protection plate in the prior art.
Description of the main element symbols:
the specific implementation mode is as follows:
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.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
The application provides a battery protection board, which comprises a circuit board, wherein the circuit board comprises a conducting layer and an insulating layer, and the conducting layer comprises a substrate and a metal layer; the metal layers are arranged on two sides of the substrate, and the insulating layer is attached to the metal layers; at least one side surface of the circuit board is provided with a first component placing area; the conducting layer comprises a circuit connecting portion and an electric core connecting portion, the circuit connecting portion is used for connecting electronic components, the insulating layer is arranged on the circuit connecting portion, the electric core connecting portion is used for connecting an electric core terminal, and the electric core connecting portion exposes the circuit board and extends outwards from the side edge of the first component placing area.
Above-mentioned battery protection shield sets up electric core connecting portion as the partly of conducting layer to electric core connecting portion expose the circuit board, have avoided electric core connecting portion to occupy the area that first component placed the region, make the battery protection shield increase components and parts and place the region under the condition that does not change original size. In addition, the battery core connecting part is a part of the conducting layer in the circuit board, so that the problem of connection between the battery core connecting part and the circuit board is solved, and the production cost is not obviously increased.
Some embodiments of the present application are described in detail. In the following embodiments, features of the embodiments may be combined with each other without conflict.
First embodiment
Fig. 1 and 2 show the front and back sides of the battery protection plate 100 in a developed condition, and in the first embodiment, the battery protection plate 100 includes a circuit board 10 and a first reinforcing plate 20. The circuit board 10 is preferably a flexible circuit board, and the first reinforcing plate 20 is fixedly disposed on the circuit board 10 and used for supporting the circuit board 10. The circuit board 10 covers one side surface of the first reinforcing plate 20, and a side of the circuit board 10 facing away from the first reinforcing plate 20 is a first component placement area 40. The conductive layer in the circuit board 10 extends outward to form a cell connecting portion 30, and the cell connecting portion 30 extends outward from the side edge of the first component placing region 40 for connecting a cell terminal.
Referring to fig. 11, the circuit board 10 includes a conductive layer and an insulating layer 103, and the conductive layer includes a substrate 101 and a metal layer 102. A metal layer 102 is disposed on each of the upper and lower sides of the substrate 101, and an insulating layer 103 is disposed on the outer side of each metal layer 102 for protecting the metal layer 102 and preventing oxidation. In the embodiment of the present application, the substrate 101 is a non-conductive material, such as a polyimide film material, and the metal layer 102 is preferably a copper foil. It is understood that, in other embodiments, the circuit board 10 may also be a PCB board or a rigid-flex board, and the metal layer may also be made of other metal materials.
Specifically, the conductive layer includes a circuit connection portion and a battery core connection portion 30, the circuit connection portion is used for connecting an electronic component, the insulating layer 103 is attached to the metal layer of the circuit connection portion, and the battery core connection portion 30 exposes the insulating layer 103, that is, the battery core connection portion 30 exposes the circuit board 10. Referring to fig. 3, the cell connecting portion 30 is bent toward the first reinforcing plate 20 and attached to a side of the first reinforcing plate 20 away from the circuit board, so as to prevent the cell connecting portion 30 from occupying a component placement area, and an area of the first component placement area 40 is substantially the same as an area of the first reinforcing plate 20. On the premise of not changing the original length and width of the battery protection board, the area of the placement area of the components can be maximized. A bending area 31 is arranged between the circuit connecting portion and the cell connecting portion 30, and the cell connecting portion 30 is bent towards the first reinforcing plate 20 along the bending area 31 and attached to the back of the first reinforcing plate 20. The bending region 31 may be formed in a mesh shape, and is configured to improve the bending performance of the battery cell connecting portion 30, so that the battery cell connecting portion 30 may be bent many times and is not likely to rebound after being bent.
In the first embodiment, the number of the cell connecting portions 30 is two. The two battery cell connecting portions 30 are arranged at intervals and extend out from the same side of the circuit board 10, and are respectively used for connecting a positive electrode tab and a negative electrode tab of a battery assembly. It is understood that, in other embodiments, the two cell connection portions 30 may extend from different sides of the circuit board 10, which is not limited in this application.
Further, the first reinforcing plate 20 may be a metal plate or a fiber plate, and when the first reinforcing plate 20 is a metal plate, such as a steel plate, the battery protection plate 100 further includes an insulating member interposed between the cell connecting portion 30 and the first reinforcing plate 20. The insulating member may be made of foam, double-sided tape, insulating adhesive, insulating film, or the like, and in an optional embodiment, the insulating member may be bonded between the cell connecting portion 30 and the first reinforcing plate 20, so that the cell connecting portion 30 is fixed on the first reinforcing plate 20.
Further, the battery protection board 100 further includes an electrical connector 50 for connecting an external circuit. The electrical connector 50 is disposed at an end of the circuit board 10 away from the first component placement area 40. In other embodiments, the electrical connectors 50 may be gold fingers disposed on the ends of the circuit board 10.
Further, a metal protection layer is disposed on the surface of the battery cell connecting portion 30, and is used for preventing the metal layer 102 on the battery cell connecting portion 30 from being oxidized or damaged. Specifically, the metal protection layer is formed on the surface of the metal layer 102 by electroplating, and the material that can be selected as the metal protection layer includes a metal material that is not easily oxidized, such as gold and nickel.
In the embodiment of the present application, the circuit board 10 includes two metal layers, and in other alternative embodiments, the number of the metal layers may be more than two, and the metal layers are arranged according to actual needs, and the present application is not limited thereto.
It is understood that, in another alternative embodiment, the first reinforcing plate 20 may be omitted from the battery protection board 100, the circuit board 10 may be supported by an external structure, and a portion of the insulating layer 103 may be removed from a side of the circuit board 10 away from the first component placement region 40, so that a portion of the conductive layer is exposed on the surface of the circuit board 10, where the exposed portion of the conductive layer is the cell connecting portion 30. Further, on the side of the circuit board 10 away from the first component placement region 40, a component may be provided in a region other than the core connection portion 30, which becomes a second component placement region.
Second embodiment
Referring to fig. 4 and 5, in the second embodiment, a battery protection plate 200 is substantially the same as the battery protection plate 100 of the first embodiment, and the battery protection plate 200 includes a circuit board 10 and a first reinforcing plate 20. The circuit board 10 is preferably a flexible circuit board, and the first reinforcing plate 20 is fixedly disposed on the circuit board 10 and used for supporting the circuit board 10. The circuit board 10 covers one side surface of the first reinforcing plate 20, and a side of the circuit board 10 facing away from the first reinforcing plate 20 is a first component placement area 40. The conductive layer in the circuit board 10 extends outward to form a cell connecting portion 30, and the cell connecting portion 30 extends outward from the side edge of the first component placing region 40 for connecting a cell terminal. Further, the circuit board 10 includes a first mounting portion 11 and a second mounting portion 12. The first installation part 11 covers one side surface of the first reinforcing plate 20, the other side surface of the first installation part 11 is the first component placement area 40, and the second installation part 12 is arranged on the side edge of the first installation part 11. The two battery cell connecting portions 30 are respectively disposed at two ends of the first mounting portion 11.
Specifically, fig. 4 and 5 show schematic structural views of the front and back sides of the battery protection plate 200. The circuit board 10 is approximately T-shaped, the first installation part 11 is approximately horizontally arranged, the second installation part 12 is approximately vertically arranged in the middle of the side edge of the first installation part 11, and the electric connector 50 is arranged at one end, far away from the first installation part 11, of the second installation part 12. In the second embodiment, the area of the first reinforcing plate 20 is substantially the same as that of the first mounting portion 11, and the metal layer of the circuit board 10 extends outward from both ends of the first mounting portion 11 to form two cell connecting portions 30. Both the cell connecting portions 30 are bent toward the first reinforcing plate 20 in a manner similar to that of the first embodiment.
Third embodiment
Referring to fig. 6, a battery protection plate 300 of the third embodiment is substantially the same as the battery protection plate 100 of the first embodiment, except that the battery protection plate 300 includes four cell connection parts 30. The four battery cell connecting portions 30 are disposed at intervals on the same side of the circuit board 10, and may be used to connect two battery cells in series or in parallel. The series and parallel connection condition of the battery cells depends on the specific circuit in the circuit board 10, and can be selected according to the actual production requirement. It is understood that, in other embodiments, more cell connection portions 30 may be disposed on the circuit board 10, so that a plurality of battery cells are connected to the same circuit board. The plurality of cell connecting portions 30 are bent towards the first reinforcing plate 20, so that the cell connecting portions are attached to one side, away from the circuit board, of the first reinforcing plate 20, and the first component placing area 40 is prevented from being occupied.
Referring further to fig. 7, in an expanded embodiment, four cell connection portions 30 may be disposed on different sides of the circuit board 10, so as to reasonably arrange the positions of a plurality of battery cells.
Fourth embodiment
Referring to fig. 8 and 9, in a fourth embodiment, a battery protection plate 400 is substantially the same as the battery protection plate 100 of the first embodiment, and the battery protection plate 400 includes a circuit board 10 and a first reinforcing plate 20. The circuit board 10 is preferably a flexible circuit board, and the first reinforcing plate 20 is fixedly disposed on the circuit board 10 and used for supporting the circuit board 10. The circuit board 10 covers one side surface of the first reinforcing plate 20, and a side of the circuit board 10 facing away from the first reinforcing plate 20 is a first component placement area 40. The conductive layer in the circuit board 10 extends outward to form a cell connecting portion 30, and the cell connecting portion 30 extends outward from the side edge of the first component placing region 40 for connecting a cell terminal. Further, the battery protection plate 400 further includes a second reinforcing plate 60, and the second reinforcing plate 60 is stacked on the first reinforcing plate 20. The circuit board 10 extends toward the second reinforcing plate 60 and covers the second reinforcing plate 60. The cell connecting portion 30 is located on the second reinforcing plate 60, so that the first component placing region 40 and the cell connecting portion 30 are located on different sides of the first reinforcing plate 20. The side of the circuit board 10 facing away from the second stiffener 60 is a second component placement area 70.
Specifically, the first reinforcing plate 20 and the second reinforcing plate 60 may be first placed in parallel, and one end of the circuit board 10 covers the surfaces of the first reinforcing plate 20 and the second reinforcing plate 60 at the same time. In the fourth embodiment, the cell connecting portion 30 is formed of a conductive layer exposed on the circuit board 10 covering the second reinforcing plate 60. Specifically, the metal layer 102 on one side of the conductive layer may be partially exposed out of the circuit board 10 by removing a part of the insulating layer 103, and the like, and the metal layer 102 in the exposed area is used for connecting the battery cell. On the side of the circuit board 10 facing away from the second reinforcing plate 60, the region other than the core connecting portion 30 is a second component placement region 70. The size of the first reinforcing plate 20 is substantially the same as that of the second reinforcing plate 60, and the second reinforcing plate 60 is folded toward the first reinforcing plate 20, so that the cell connecting portion 30 and the second component placing region 70 are rotated together with the second reinforcing plate 60 to the side of the first reinforcing plate 20 departing from the circuit board 10, the original width of the battery protection plate 400 is restored, and the overall placing region of the components is enlarged.
Further, in the fourth embodiment, the lower insulating layer 103 of the circuit board 10 may be used as an insulating member between the cell connecting portion 30 and the second reinforcing plate 60, and interposed between the cell connecting portion 30 and the second reinforcing plate 60.
In another embodiment, the circuit board 10 may further extend toward the other side surface of the first reinforcing plate 20 and cover the first reinforcing plate 20 to form a second component placement region 70, and the cell connecting part 30 is located in the second component placement region 70. At this time, the second reinforcing plate 60 is not required to be added, the circuit board 10 directly covers the front and back surfaces of the first reinforcing plate 20, the overall arrangement area of the components is enlarged without increasing the thickness and width of the battery protection plate, and the battery core connecting portion 30 is still formed by the exposed conductive layer on the circuit board 10.
Fifth embodiment
Referring to fig. 10, a fifth embodiment of the present application provides a battery assembly 80, where the battery assembly 80 includes a battery cell 81, a tab 82 and the battery protection plate in any of the above embodiments, the tab 82 is a connection terminal of the battery cell 81, and extends out from one side of the battery cell 81, and the tab 82 is connected to the cell connection portion 30 of the battery protection plate, so as to implement connection between the battery protection plate and the battery cell 81. The tab 82 and the battery core connecting portion 30 are connected by welding, and the welding mode may be hot-press welding or laser welding. It can be understood that, in other embodiments, the battery cell connecting portion 30 and the tab 82 may also be connected in other manners, so as to ensure the fixation and the electrical conduction of the battery cell connecting portion and the tab, and the connection manner is not limited in this application.
Although the present application has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the present application.
Claims (10)
1. A battery protection plate comprising:
a circuit board comprising a conductive layer and an insulating layer, the conductive layer comprising a substrate and a metal layer;
the metal layers are arranged on two sides of the substrate, and the insulating layers are arranged on the metal layers;
at least one side surface of the circuit board is provided with a first component placing area;
the battery is characterized in that the conducting layer comprises a circuit connecting portion and a battery core connecting portion, the circuit connecting portion is used for connecting an electronic component, the insulating layer is attached to the circuit connecting portion, the battery core connecting portion is used for connecting a battery core terminal, and the battery core connecting portion is exposed out of the circuit board and extends outwards from the side edge of the first component placing area.
2. The battery protection board according to claim 1, wherein the circuit board is a flexible circuit board, the battery protection board includes a first stiffener disposed on the circuit board for supporting the circuit board, a side of the circuit board facing away from the first stiffener is the first component placement area, and the cell connecting portion is located on a side of the first stiffener facing away from the circuit board.
3. The battery protection board according to claim 2, wherein a bending region is provided between the circuit connection portion and the cell connection portion, and the cell connection portion is bent along the bending region toward a side of the first reinforcing board away from the circuit board.
4. The battery protection plate as claimed in claim 2, further comprising an insulating member interposed between the cell connecting portion and the first reinforcing plate.
5. The battery protection plate as claimed in claim 1, wherein the number of the cell connecting portions is two, and the cell connecting portions are spaced apart from each other at the side of the circuit board.
6. The battery protection plate as claimed in claim 4, wherein a metal protection layer is disposed on a surface of the cell connecting portion for preventing oxidation or damage of the metal layer on the cell connecting portion.
7. The battery protection board according to claim 1, wherein the circuit board is a flexible circuit board, the battery protection board includes a first stiffener, the first stiffener is disposed on the circuit board to support the circuit board, the circuit board includes a first mounting portion and a second mounting portion, the first mounting portion covers a side surface of the first stiffener, another side surface of the first mounting portion is the first component placement area, the second mounting portion is disposed at a side edge of the first mounting portion, and two of the battery cell connecting portions are disposed at two ends of the first mounting portion, respectively.
8. The battery protection board according to claim 2, further comprising a second reinforcing plate, wherein the second reinforcing plate is stacked on a side of the first reinforcing plate away from the circuit board, the circuit board extends toward and covers the second reinforcing plate, the cell connecting portion is located on the second reinforcing plate, and a side of the circuit board away from the second reinforcing plate is a second component placement region.
9. The battery protection panel according to claim 2, wherein the circuit board extends toward the other side surface of the first reinforcing plate and covers the first reinforcing plate to form a second component placement region, and the cell connection part is located in the second component placement region.
10. A battery assembly comprises an electric core and a tab, wherein the tab extends out of one side of the electric core, the battery assembly is characterized by further comprising the battery protection board as claimed in any one of claims 1 to 9, and the tab is connected with the electric core connecting part of the battery protection board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922278984.0U CN211088379U (en) | 2019-12-16 | 2019-12-16 | Battery protection plate and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922278984.0U CN211088379U (en) | 2019-12-16 | 2019-12-16 | Battery protection plate and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211088379U true CN211088379U (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922278984.0U Active CN211088379U (en) | 2019-12-16 | 2019-12-16 | Battery protection plate and battery pack |
Country Status (1)
| Country | Link |
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| CN (1) | CN211088379U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113193307A (en) * | 2021-04-23 | 2021-07-30 | 东莞新能德科技有限公司 | Battery and electric equipment thereof |
-
2019
- 2019-12-16 CN CN201922278984.0U patent/CN211088379U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113193307A (en) * | 2021-04-23 | 2021-07-30 | 东莞新能德科技有限公司 | Battery and electric equipment thereof |
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