CN218731678U - Battery pack current loop structural part and battery pack - Google Patents
Battery pack current loop structural part and battery pack Download PDFInfo
- Publication number
- CN218731678U CN218731678U CN202222943012.0U CN202222943012U CN218731678U CN 218731678 U CN218731678 U CN 218731678U CN 202222943012 U CN202222943012 U CN 202222943012U CN 218731678 U CN218731678 U CN 218731678U
- Authority
- CN
- China
- Prior art keywords
- battery pack
- fuse
- positive
- negative output
- current loop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
An embodiment of the utility model provides a battery package current loop structure and battery package relates to battery package fuse field. Aims to solve the problem that the charging and discharging loop of the low-voltage small-capacity battery pack also has safety. The battery pack current loop structural part comprises a battery pack PCB, a battery pack positive and negative output electrode, a battery pack positive and negative output terminal and a fuse; the fuse comprises a first fuse part and a second fuse part; the first fuse part is provided with a first pin, and the second fuse part is provided with a second pin; the arrangement direction of the first fuse part is crossed with the expansion direction of the number of the positive and negative output terminals of the battery pack. The battery pack comprises the battery pack current loop structural part. The low-voltage and small-capacity battery pack is compact in size, the arrangement area of a PCB (printed circuit board) of the battery pack is small, the first fuse part and the second fuse part are arranged in a bending mode, fuses compact in structure are arranged, a current path is shortened, heating is reduced, and the discharging performance of the battery pack is improved.
Description
Technical Field
The utility model relates to a battery package fuse field particularly, relates to a battery package current loop structure and battery package.
Background
Low voltage (20V and below) small capacity (2 Ah and below) battery packs have low energy, low current, and little damage that may occur from abnormal operation. And the low-voltage small-capacity battery pack has light appearance requirement and does not reserve a fuse space inside. However, the quality of the batteries is uneven, large-current tools are more and more popular, the safety problem of the batteries is more and more prominent, and in order to ensure the life and property safety of users, a fuse is required to be arranged in a small battery pack to improve the safety performance of the battery pack under the conditions of charging and discharging and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery package current loop structure, it can improve low-voltage low capacity battery package charge-discharge circuit and also have safe problem including, for example.
The utility model discloses an aim still includes, provides a battery package, and it can improve low-voltage low capacity battery package charge-discharge circuit and also have safe problem.
The embodiment of the utility model discloses a can realize like this:
the embodiment of the utility model provides a battery package current loop structure spare, including battery package PCB board and set up positive negative output pole, battery package positive negative output terminal and fuse on the PCB board of said battery package; the fuse comprises a first fuse part and a second fuse part which are arranged on the PCB of the battery pack at included angles; the first fuse part is provided with a first pin, and the second fuse part is provided with a second pin; the first fuse part is arranged corresponding to the positive and negative output terminals of the battery pack, and the arrangement direction of the first fuse part is intersected with the expansion direction of the number of the positive and negative output terminals of the battery pack; the second pin is electrically connected with the positive and negative output electrodes of the battery pack.
In addition, the embodiment of the utility model provides a battery package current loop structure spare can also have following additional technical characterstic:
optionally, an included angle formed by the first fuse portion and the second fuse portion on the positive and negative output terminals of the battery pack ranges from 90 ° to 180 °.
Optionally, the first fuse portion is disposed corresponding to the front faces of the positive and negative output terminals of the battery pack, so that the first pin is electrically connected to the front faces of the positive and negative output terminals of the battery pack in a perpendicular manner.
Optionally, the second fuse portion is disposed corresponding to the positive and negative output electrode faces of the battery pack, so that the second pin is vertically and electrically connected to the positive and negative output electrode faces of the battery pack.
Optionally, the first fuse portion and the second fuse portion are arranged in an "L" shaped structure.
Optionally, the second fuse part is disposed between the positive and negative output electrodes of the battery pack and the positive and negative output terminals of the battery pack.
Optionally, the positive and negative output terminals of the battery pack, the first pin, the positive and negative output poles of the battery pack, and the second pin are electrically connected in sequence.
Optionally, the first fuse portion and the second fuse portion are both sheet-shaped structures, and the first fuse portion and the second fuse portion are vertically disposed on the battery pack PCB.
Optionally, the fuse further comprises a fuse part, the first fuse part, the fuse part and the second fuse part are connected in sequence, and the fuse part is used for cutting off current when fusing.
The embodiment of the utility model also provides a battery package. The battery pack comprises a battery pack current loop structural member.
The utility model discloses beneficial effect of battery package current loop structure spare and battery package includes, for example:
the battery pack current loop structural part comprises a battery pack PCB (printed circuit board), a battery pack positive and negative output electrode, a battery pack positive and negative output terminal and a fuse, wherein the battery pack positive and negative output electrode, the battery pack positive and negative output terminal and the fuse are arranged on the battery pack PCB; the fuse comprises a first fuse part and a second fuse part which are arranged on the PCB of the battery pack at included angles; the first fuse part is provided with a first pin, and the second fuse part is provided with a second pin; the first fuse part is arranged corresponding to the positive and negative output terminals of the battery pack, and the arrangement direction of the first fuse part is intersected with the expansion direction of the number of the positive and negative output terminals of the battery pack; the second pin is electrically connected with the positive and negative output electrodes of the battery pack.
The battery pack PCB is small in arrangement area, the first fuse portion and the second fuse portion are arranged in a bending mode, the first pin is electrically connected with the positive output electrode and the negative output electrode of the battery pack in an opposite mode, the fuse with the compact structure is arranged, a current path is shortened, heating is reduced, installation of the low-voltage small-capacity battery pack fuse is achieved, and the safety problem of the low-voltage small-capacity battery pack is solved.
The battery pack comprises the battery pack current loop structural part, so that the problem of safety of a low-voltage small-capacity battery pack charging and discharging loop can be solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.
Fig. 1 is an axial side view of a current loop structure of a battery pack according to an embodiment of the present invention;
fig. 2 is a top view of a current loop structure of a battery pack according to an embodiment of the present invention.
Icon: 10-battery pack current loop structure; 100-battery pack PCB; 200-positive and negative output poles of the battery pack; 300-positive and negative output terminals of the battery pack; 400-a fuse; 410-a first fuse portion; 420-a second fuse portion; 430-melt portion.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the directions or positional relationships indicated by the terms "up", "down", "inside", "outside", etc. appear based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are only used to distinguish one description from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
The current loop structure 10 of the battery pack provided in the present embodiment is described in detail with reference to fig. 1 to 2.
Referring to fig. 1 and 2, an embodiment of the present invention provides a battery pack current loop structure 10, which includes a battery pack PCB 100, a battery pack positive/negative output electrode 200 disposed on the battery pack PCB 100, a battery pack positive/negative output terminal 300, and a fuse 400; the fuse 400 includes a first fuse portion 410 and a second fuse portion 420 disposed at an included angle on the PCB board 100 of the battery pack; the first fuse portion 410 is provided with a first pin, and the second fuse portion 420 is provided with a second pin; the first fuse part 410 is arranged corresponding to the positive and negative output terminals 300 of the battery pack, and the arrangement direction of the first fuse part 410 is crossed with the expansion direction of the number of the positive and negative output terminals 300 of the battery pack; the second pin is electrically connected to the battery pack positive and negative output poles 200.
Specifically, the battery pack positive and negative output electrodes 200, the battery pack positive and negative output terminals 300, and the fuse 400 are disposed on the battery pack PCB board 100. The positive and negative output poles 200 of the battery pack are led out from the battery pack, and the positive and negative output terminals 300 of the battery pack are used for connecting with an external electric tool.
The "direction in which the first fuse portion 410 is provided" is a direction in which a plane corresponding to the first fuse portion 410 is located, that is, a direction indicated by an arrow W1 in fig. 2, and the "direction in which the number of positive and negative output terminals 300 of the battery pack is expanded" is a direction in which the number of terminals of the positive and negative output terminals 300 of the battery pack is expanded, that is, a direction indicated by an arrow W2 in fig. 2. The direction indicated by W1 intersects the direction indicated by W2.
"the first fuse portion 410 and the second fuse portion 420 are provided at an angle" so that "the first fuse portion 410 is provided corresponding to the battery pack positive and negative output terminals 300" and "the direction in which the first fuse portion 410 is provided intersects with the direction in which the number of pieces of the battery pack positive and negative output terminals 300 expands". "the first pin is electrically connected with the positive and negative output terminal 300 of the battery pack in a form of ' the arrangement direction of the first fuse part 410 is intersected with the extension direction of the number of the positive and negative output terminals 300 of the battery pack ', a current path can be shortened, and the arrangement area from the positive and negative output terminal 300 of the battery pack to the first pin can be reduced, wherein the arrangement area from the positive and negative output terminal 300 of the battery pack to the first pin is the arrangement area as shown by a shadow A in fig. 2, compared with the arrangement of the fuse in the direction parallel to W2 ', the arrangement area from the first pin to the first fuse part 410 on a PCB board is effectively reduced by adopting the arrangement direction of the first fuse part 410 to be intersected with the direction of W2, and the arrangement area is suitable for the installation of the fuse 400 of the low-voltage and small-capacity battery pack. Meanwhile, the occupied area of the fuse 400 is reduced, and a larger area can be left for the battery pack PCB board 100.
Since the low-voltage small-capacity battery pack is compact in size, the arrangement area on the battery pack PCB board 100 is small, and there is no space for arranging the fuse 400. The first fuse portion 410 and the second fuse portion 420 are disposed at an included angle, such that "the first fuse portion 410 is disposed corresponding to the positive and negative output terminals 300 of the battery pack, such that the disposing direction of the first fuse portion 410 intersects with the expanding direction of the number of pieces of the positive and negative output terminals 300 of the battery pack". The current path generated by the fuse 400, with reference to line W in fig. 2: from the pack positive and negative output terminals 300 to the first pin of the fuse 400, through the fuse 400 to the second pin, and from the pack positive and negative output terminals 200 into the pack. The "first pin is electrically connected to the positive and negative output terminals 300 of the battery pack" can shorten the current path. The current path is short, so that the resistance is small, the heating is reduced, and the discharge performance of the battery pack is improved. The low-voltage small-capacity battery pack charging and discharging loop is provided with the fuse 400, the fuse 400 is fused in time under extreme conditions, the battery is protected from being damaged by fire, explosion and the like, and the large-current discharging safety performance of the battery pack is improved.
In this embodiment, the first fuse portion 410 and the second fuse portion 420 form an included angle in the range of 90 ° to 180 ° at the positive and negative output terminals 300 side of the battery pack. The included angle formed by the first fuse portion 410 and the second fuse portion 420 at the positive and negative output terminals 300 side of the battery pack is a,0 ° < a < 180 °. Specifically, the angle a is more than 90 degrees and less than 180 degrees. Thus, the arrangement area a required from the positive and negative output terminals 300 of the battery pack to the first pin is smaller than the area when a is 180 °.
In this embodiment, the first fuse portion 410 is disposed corresponding to the front surface of the positive and negative output terminals 300 of the battery pack, so that the first pin is electrically connected to the front surface of the positive and negative output terminals 300 of the battery pack in a vertical manner. Specifically, referring to the relative position in fig. 2, the arrangement direction W1 of the first fuse portion 410 is horizontally arranged, and the first fuse portion 410 is located right above the positive and negative output terminals 300 of the battery pack, and at this time, the first pin is electrically connected to the front surface of the positive and negative output terminals 300 of the battery pack vertically.
Referring to fig. 1 and 2, in the present embodiment, the second fuse portion 420 is disposed corresponding to the front surface of the positive and negative battery pack output electrode 200, so that the second pin is electrically connected to the front surface of the positive and negative battery pack output electrode 200 in a vertical manner.
The second pin is vertically and electrically connected with the front surface of the positive and negative output poles 200 of the battery pack, the current path is from the positive and negative output terminals 300 of the battery pack to the first pin of the fuse 400, passes through the fuse 400 to the second pin, and then enters the battery pack from the positive and negative output poles 200 of the battery pack, and the current path can be shortened. Similarly, the arrangement area of the second pin to the positive and negative output electrodes 200 of the battery pack can be reduced.
Specifically, referring to fig. 1 and 2, in the present embodiment, the second fuse unit 420 is provided between the battery pack positive/negative output electrode 200 and the battery pack positive/negative output terminal 300. The first fuse portion 410 is disposed at one side of the battery pack positive and negative output terminals 300.
Described in a relative position in fig. 2, the battery pack positive and negative output electrodes 200 and the battery pack positive and negative output terminals 300 are spaced from left to right, the second fuse portion 420 is disposed between the battery pack positive and negative output electrodes 200 and the battery pack positive and negative output terminals 300, and the first fuse portion 410 is disposed on the upper side of the battery pack positive and negative output terminals 300.
Referring to fig. 1 and 2, in the present embodiment, the first fuse portion 410 and the second fuse portion 420 are arranged in an L-shaped structure.
Referring to the relative position in fig. 2, the first fuse portion 410 is horizontally disposed, and the second fuse portion 420 is vertically disposed, forming an "L" shaped structure. The fuse 400 is arranged in an L-shaped structure, the fuse 400 is compact in structure, and is designed into an L shape in compliance with the layout of a PCB, and the stamping fuse 400 is high in cost performance.
Specifically, the first fuse portion 410 is perpendicular to the second fuse portion 420. It should be noted that "perpendicular" herein does not require that the angle between the two be 90 °, but may be slightly inclined, for example, the angle is in the range of 88 ° to 90 °, and still be considered perpendicular. Example (a): the angle between the first fuse portion 410 and the second fuse portion 420 may also be 88 °, 89 °, or the like.
In this embodiment, the positive/negative output terminal 300 of the battery pack, the first pin, the positive/negative output electrode 200 of the battery pack, and the second pin are electrically connected in sequence. Current path: from the pack positive and negative output terminals 300 to the first pin of the fuse 400, through the fuse 400 to the second pin, and from the pack positive and negative output terminals 200 into the pack.
Referring to fig. 1, in the present embodiment, the first fuse portion 410 and the second fuse portion 420 are both sheet-shaped, and the first fuse portion 410 and the second fuse portion 420 are vertically disposed on the battery pack PCB 100. The fuse 400 has a rigid structure due to the sheet structure, is convenient to install and use, has good mechanical strength, insulativity, heat resistance and flame retardance, and is not easy to break, deform, burn, short circuit and the like in use.
In this embodiment, the first fuse portion 410 and the second fuse portion 420 are soldered to the battery pack PCB board 100. The construction cost is reduced.
In this embodiment, the fuse 400 further includes a fuse portion 430, and the first fuse portion 410, the fuse portion 430, and the second fuse portion 420 are sequentially connected, and the fuse portion 430 is used to cut off current when the fuse is blown. The "fuse element 430" is the core of the fuse 400 and functions to cut off current when blown. The "fuse portion 430" is thinner than the first fuse portion 410 and the second fuse portion 420.
In this embodiment, the material of the melt portion 430 is generally an aluminum antimony alloy. Other low melting point metal materials are also possible without limitation.
According to the battery pack current loop structure 10 provided by the embodiment, the working principle of the battery pack current loop structure 10 is as follows: the first fuse portion 410 and the second fuse portion 420 are bent, and the fuse 400 having a compact structure is provided, thereby shortening a current path.
The present embodiment provides a battery pack current loop structure 10 with at least the following advantages:
"the first pin is electrically connected to the positive and negative output terminals 300 of the battery pack in a form of 'the arrangement direction of the first fuse portion 410 intersects with the extension direction of the number of the positive and negative output terminals 300 of the battery pack', the current path is shortened, and the arrangement area required from the positive and negative output terminals 300 of the battery pack to the first pin is reduced. Effectively reducing the PCB layout area and being suitable for installing the fuse 400 of the low-voltage small-capacity battery pack.
The first pin is vertically and electrically connected with the front surface of the positive and negative output terminals 300 of the battery pack, and a current path can be shortened. The current path is short, so that the resistance is small, the heating is reduced, and the discharge performance of the battery pack is improved.
The low-voltage small-capacity battery pack charging and discharging loop is provided with the fuse 400, the fuse 400 is fused in time under extreme conditions, the battery is protected from being damaged by fire, explosion and the like, and the large-current discharging safety performance of the battery pack is improved.
The embodiment of the utility model also provides a battery package. The battery pack includes a battery pack current loop structure 10. The problem of safety of a charge-discharge loop of the low-voltage small-capacity battery pack is solved.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A battery package current loop structure, characterized in that includes:
the battery pack PCB comprises a battery pack PCB (100), and a battery pack positive and negative output electrode (200), a battery pack positive and negative output terminal (300) and a fuse (400) which are arranged on the battery pack PCB (100);
the fuse (400) comprises a first fuse part (410) and a second fuse part (420) which are arranged on the battery pack PCB (100) in an included angle manner; the first fuse part (410) is provided with a first pin, and the second fuse part (420) is provided with a second pin; the first fuse part (410) is arranged corresponding to the positive and negative output terminals (300) of the battery pack, and the arrangement direction of the first fuse part (410) is crossed with the expansion direction of the number of the positive and negative output terminals (300) of the battery pack; the second pin is electrically connected with the positive and negative output electrodes (200) of the battery pack.
2. The battery pack current loop structure of claim 1, wherein:
the included angle formed by the first fuse part (410) and the second fuse part (420) on one side of the positive and negative output terminals (300) of the battery pack ranges from 90 degrees to 180 degrees.
3. The battery pack current loop structure of claim 2, wherein:
the first fuse part (410) is arranged corresponding to the front face of the positive and negative output terminals (300) of the battery pack, so that the first pin is vertically and electrically connected with the front face of the positive and negative output terminals (300) of the battery pack.
4. The battery pack current loop structure of claim 3, wherein:
the second fuse part (420) is arranged corresponding to the front face of the positive and negative output electrode (200) of the battery pack, so that the second pin is vertically and electrically connected with the front face of the positive and negative output electrode (200) of the battery pack.
5. The battery pack current loop structure of claim 4, wherein:
the first fuse portion (410) and the second fuse portion (420) are arranged in an L-shaped structure.
6. The battery pack current loop structure of claim 5, wherein:
the second fuse part (420) is disposed between the battery pack positive and negative output electrodes (200) and the battery pack positive and negative output terminals (300).
7. The battery pack current loop structure of any of claims 1-6, wherein:
the battery pack positive and negative output terminal (300), the first pin, the battery pack positive and negative output electrode (200) and the second pin are electrically connected in sequence.
8. The battery pack current loop structure of any of claims 1-6, wherein:
the first fuse part (410) and the second fuse part (420) are both sheet-shaped structures, and the first fuse part (410) and the second fuse part (420) are vertically arranged on the battery pack PCB (100).
9. The battery pack current loop structure of claim 8, wherein:
the fuse (400) further includes a fuse portion (430), the first fuse portion (410), the fuse portion (430), and the second fuse portion (420) are connected in sequence, and the fuse portion (430) is configured to cut off a current when fused.
10. A battery pack, comprising:
the battery pack comprises the battery pack current loop structure of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222943012.0U CN218731678U (en) | 2022-11-01 | 2022-11-01 | Battery pack current loop structural part and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222943012.0U CN218731678U (en) | 2022-11-01 | 2022-11-01 | Battery pack current loop structural part and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218731678U true CN218731678U (en) | 2023-03-24 |
Family
ID=85604087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222943012.0U Active CN218731678U (en) | 2022-11-01 | 2022-11-01 | Battery pack current loop structural part and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218731678U (en) |
-
2022
- 2022-11-01 CN CN202222943012.0U patent/CN218731678U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5490713B2 (en) | Battery pack including PCM using safety member | |
| KR101463196B1 (en) | Battery pack and Connecting bar applied for battery pack | |
| JP5095747B2 (en) | Secondary battery pack with excellent manufacturing process characteristics and structural stability | |
| EP2218125B1 (en) | Pcm of improved assembling type structure and battery pack employed with the same | |
| JP5160551B2 (en) | Secondary battery pack | |
| CN102035186B (en) | Current interrupting device and secondary battery including current interrupting device | |
| JP6153182B2 (en) | Circuit board for secondary battery and battery pack including the same | |
| EP2722911B1 (en) | Soldering connector, battery module having the same and battery pack comprising the battery module. | |
| JP5851041B2 (en) | Newly constructed top cap assembly | |
| US20050275370A1 (en) | Fuse for lithium-ion cell and lithium-ion cell including the fuse | |
| CN106531945B (en) | Parallel battery module | |
| JP2010511280A (en) | Battery pack with excellent productivity and structural stability | |
| CN104659323A (en) | Rechargeable battery having fuse | |
| CN111082493A (en) | Terminal device | |
| CN117878536B (en) | Connection sheet and battery structure | |
| CN216720236U (en) | Switching piece, battery monomer, battery and power consumption device | |
| CN218731678U (en) | Battery pack current loop structural part and battery pack | |
| KR20000038817A (en) | Secondary lithium battery | |
| CN207542296U (en) | A kind of battery modules | |
| KR20110008480A (en) | A safeguard apparatus preventing overcharge for a secondary battery | |
| JP3231814U (en) | Connection module with cell protection function | |
| CN107742685B (en) | Battery module | |
| JP2001243933A (en) | Battery pack | |
| CN102082304B (en) | Secondary battery | |
| CN219801207U (en) | Square lithium cell connects PACK device in parallel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |