CN220963596U - Battery cell shell and battery cell assembly - Google Patents
Battery cell shell and battery cell assembly Download PDFInfo
- Publication number
- CN220963596U CN220963596U CN202322655654.5U CN202322655654U CN220963596U CN 220963596 U CN220963596 U CN 220963596U CN 202322655654 U CN202322655654 U CN 202322655654U CN 220963596 U CN220963596 U CN 220963596U
- Authority
- CN
- China
- Prior art keywords
- battery cell
- communication
- gap
- nickel sheet
- cell housing
- 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.)
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Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 136
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 68
- 210000004027 cell Anatomy 0.000 claims description 85
- 238000004891 communication Methods 0.000 claims description 35
- 210000005056 cell body Anatomy 0.000 claims description 9
- 229910000679 solder Inorganic materials 0.000 claims description 4
- 238000003466 welding Methods 0.000 description 6
- 230000004308 accommodation Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery cell shell and a battery cell assembly, wherein the battery cell shell comprises: the battery cell support is internally provided with a containing cavity, the outer surface of the battery cell support is provided with a containing hole, and the containing hole is communicated with the containing cavity; the nickel sheet is arranged on the battery cell support, part of the nickel sheet is positioned in the accommodating hole, and the top surface of the nickel sheet is flush with or below the outer surface of the battery cell support. The battery cell shell can reduce the scratch between the nickel sheet and the shell of the battery pack, so that the nickel sheet is damaged.
Description
Technical Field
The present utility model relates to a battery cell structure, and more particularly, to a battery cell housing and a battery cell assembly.
Background
The cell assemblies are typically mounted within the housing of the battery pack to thereby assemble the battery pack. At present, the enjoyed battery cell assembly generally comprises a battery cell shell and a battery cell structure arranged in the battery cell shell, the battery cell shell generally comprises a battery cell support and a nickel sheet covered on the end face of the battery cell support, and the nickel sheet is welded with the anode and the cathode of the battery cell structure. In the actual installation process of the actual battery cell assembly, an operator installs the battery cell structure on the battery cell support, then covers the nickel sheet on the end face of the battery cell support, and then performs the welding process of the nickel sheet and the battery cell structure, so that the battery cell assembly after welding and fixing can cause inconvenient installation due to scraping of the nickel sheet and the battery pack shell when the battery cell assembly is installed into the battery pack shell.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of utility model
The utility model aims to provide a battery cell shell which can reduce the scratch between a nickel sheet and a shell of a battery pack, so that the nickel sheet is damaged.
To achieve the above object, the present utility model provides a battery cell housing, including:
The battery cell support is internally provided with a containing cavity, the outer surface of the battery cell support is provided with a containing hole, and the containing hole is communicated with the containing cavity;
The nickel sheet is arranged on the battery cell support, part of the nickel sheet is positioned in the accommodating hole, and the top surface of the nickel sheet is flush with or below the outer surface of the battery cell support.
In one or more embodiments, the nickel plate includes a body portion, and a connection portion disposed on the body portion, the receiving hole includes a first communication portion in communication with the receiving cavity, and the connection portion is at least partially disposed within the first communication portion.
In one or more embodiments, the accommodating hole further includes a second communicating portion disposed on an outer surface of the cell holder, the first communicating portion is disposed on a bottom wall of the second communicating portion, and the body portion is disposed in the second communicating portion.
In one or more embodiments, the connecting portion is protruding on the body portion in a direction away from the top surface of the nickel sheet;
The size of the second communication part is larger than that of the first communication part, a step surface is formed between the second communication part and the first communication part, and the body part comprises a matching part matched with the step surface.
In one or more embodiments, the nickel plate and the receiving hole form a labyrinth structure.
In one or more embodiments, a first gap is formed between the side wall of the body portion and the second communicating portion, a second gap is formed between the body portion and the step surface, and the labyrinth structure includes the first gap and the second gap that are communicated.
In one or more embodiments, a third gap is formed between the connection portion and the first communication portion, the third gap being in communication with the second gap, the labyrinth structure including the third gap.
In one or more embodiments, the connection portion is provided with a solder joint portion.
In one or more embodiments, the body portion is provided with a plurality of connection portions.
The utility model provides a battery cell assembly, which comprises the battery cell shell, a battery cell body arranged in the battery cell shell and waterproof paper wrapped outside the battery cell shell.
The battery cell assembly further comprises waterproof paper wrapped outside the battery cell shell
Compared with the prior art, according to the battery cell shell, the accommodating hole is formed in the battery cell support, and the top surface of the nickel sheet is flush with or below the outer surface of the battery cell support by utilizing the accommodating hole, so that scraping between the nickel sheet and the shell of the battery pack is reduced, and the nickel sheet is damaged.
Drawings
FIG. 1 is a schematic diagram of a cell assembly according to an embodiment of the present utility model;
fig. 2 is a schematic structural view of a cell holder according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a nickel plate according to an embodiment of the present utility model;
fig. 4 is a cross-sectional view of a cell housing according to an embodiment of the present utility model;
Fig. 5 is an enlarged view at a in fig. 4;
Fig. 6 is a top view of a nickel plate according to another embodiment of the utility model.
The main reference numerals illustrate:
1. A cell housing; 11. a cell holder; 111. a receiving chamber; 112. a receiving hole; 1121. a second communication portion; 1122. a first communication section; 1123. a step surface; 113. a half shell; 114. a mounting surface; 12. nickel flakes; 121. a body portion; 122. a connection part; 1221. a slit; 123. a welding spot portion; 124. a first surface; 125. a second surface; 13. a labyrinth structure; 131. a first gap; 132. a second gap; 133. a third gap; 2. and the battery cell body.
Detailed Description
The following detailed description of embodiments of the utility model is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the utility model is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
As shown in fig. 1 to 5, a battery cell assembly according to an embodiment of the present utility model includes a battery cell housing 1 and a battery cell body 2 mounted in the battery cell housing 1. Wherein, the cell support 11 is internally provided with a containing cavity 111, the outer surface of the cell support 11 is provided with a containing hole 112, and the containing hole 112 is communicated with the containing cavity 111; the nickel plate 12 is mounted on the cell holder 11, the nickel plate 12 is partially positioned in the accommodating hole 112, and the top surface of the nickel plate 12 is flush with or below the outer surface of the cell holder 11.
By the arrangement, when the battery cell assembly is arranged in the shell of the battery pack, scraping of the nickel sheet 12 and the shell of the battery pack can be avoided, so that the installation efficiency of the battery pack is affected, and the performance and the service life of the nickel sheet are affected.
It will be appreciated that the top surface of the nickel plate 12 is flush with or below the outer surface of the cell support 11. The outer surface of the cell holder 11 expressed above means a surface provided with the accommodation hole 112. In the embodiment shown in fig. 2, the cell holder 11 may have a mounting surface 114 thereon, and the receiving hole 112 is formed in the mounting surface 114. The outer surface of the cell holder 11 is referred to as the mounting surface 114.
On the other hand, the accommodating hole 112 can also position the nickel sheet 12, so that the accuracy of the mounting positions of the nickel sheet 12 and the battery cell bracket 11 is improved, and the product yield and the production efficiency are improved. As shown in fig. 1, 2 and 4, the battery cell support 11 may include two half-shells 113 connected to each other, each half-shell 113 is provided with a receiving hole 112, and each half-shell 113 may have a nickel sheet 12 installed in the receiving hole 112, where the nickel sheet 12 may include a positive nickel sheet 12 and a negative nickel sheet 12, the positive nickel sheet 12 is welded with the positive electrode of the battery cell body 2, and the negative nickel sheet 12 is welded with the negative electrode of the battery cell body 2. That is, one half-shell 113 may have at least one positive nickel sheet 12 mounted thereon, and the other half-shell 113 may have at least one negative nickel sheet 12 mounted thereon. It will be appreciated that the structure of fig. 2 may be considered as one of the half-shells 113 of the cell holder 11.
Specifically, the two half-shells 113 may be connected by means of clamping, riveting, bolting, interference fit, or the like.
In one embodiment, the nickel sheet 12 includes a main body 121 and a connecting portion 122 disposed on the main body 121, the accommodating hole 112 includes a first communicating portion 1122 in communication with the accommodating cavity 111, and the connecting portion 122 is at least partially located in the first communicating portion 1122. The connection portion 122 is at least partially located in the first connection portion 1122, and functions to facilitate welding of the nickel plate 12 and the cell body 2.
Specifically, the accommodating hole 112 further includes a second communicating portion 1121 disposed on an outer surface of the cell support 11, the first communicating portion is disposed on a bottom wall of the second communicating portion 1121, and the body portion 121 is disposed in the second communicating portion 1121. The body portion 121 is mated with the second communication portion 1121, and the connection portion 122 of the nickel plate 12 is mated with the first communication portion 1122, so that the positioning function of the cell holder 11 and the nickel plate 12 is achieved.
Further, the connecting portion 122 is protruding on the body portion 121 along a direction away from the top surface of the nickel sheet 12; the second communication portion 1121 has a larger size than the first communication portion 1122, a stepped surface 1123 is formed between the second communication portion 1121 and the first communication portion 1122, and the body portion 121 includes an engaging portion 1211 engaged with the stepped surface 1123. The mating portion 1211 may also function as a detent in cooperation with the stepped surface 1123.
It is understood that the body 121 has a first surface 124 and a second surface 125 disposed opposite to each other, and the connecting portion 122 is disposed on the first surface 124 of the body 121. The second surface 125 of the body 121 is the top surface of the nickel sheet 12; or the second surface 125 of the body portion 121 is a portion of the top surface of the nickel sheet 12.
As shown in fig. 4 and 5, a stepped surface 1123 is formed between the second communication portion 1121 and the first communication portion 1122, and the body portion 121 is fitted to the stepped surface 1123. This arrangement can reduce the effect of dust entering the first communicating portion 1122.
As shown in fig. 4 and 5, further, the nickel plate 12 and the receiving hole 112 form a labyrinth structure 13. This arrangement can serve to reduce the ingress of dust between the nickel plate 12 and the cell body 2 from the space between the outer edge of the nickel plate 12 and the cell holder 11.
Specifically, as shown in fig. 5, a first gap 131 is formed between the outer side wall of the body portion 121 and the second communicating portion 1121, a step surface 1123 is formed between the second communicating portion 1121 and the first communicating portion 1122, a second gap 132 is formed between the body portion 121 and the step surface 1123, and the labyrinth structure 13 includes the first gap 131 and the second gap 132 that are communicated. The extending direction of the first gap 131 is not parallel to the extending direction of the second gap 132, and the first gap 131 and the second gap 132 cooperate to form a labyrinth structure 13. As shown in fig. 5, a second gap 132 is formed between the first surface 1211 of the body portion 121 and the step surface 1123.
Further, a third gap 133 is formed between the connection portion 122 and the first communication portion 1122, the third gap 133 communicates with the second gap 132, and the labyrinth structure 13 includes the third gap 133. The extending direction of the third gap 133 is not parallel to the extending direction of the second gap 132, thereby enhancing the dust-proof effect of the labyrinth structure 13.
In one embodiment, the body 121 is located in the second communication portion 1121, which is understood that the body 121 does not protrude from the mounting surface 114 of the cell holder 11, and the flatness of the mounting surface 114 is maintained as much as possible.
In one embodiment, the connecting portion 122 is provided with a solder joint 123. The welding point portion 123 may be protruded on the connection portion 122; the solder joint portion 123 may protrude out of the accommodation hole 112 into the accommodation chamber 111 and be welded with the positive/negative electrode of the cell body 2.
Specifically, as shown in fig. 3, two welding points 123 are provided on the connecting portion 122 in a convex manner at intervals.
The nickel plate 12 may be integrally formed, and for example, the connection portion 122 may be formed by punching the body portion 121.
In one embodiment, as shown in fig. 3, a plurality of connection portions 122 are provided on the main body 121. Specifically, two connection portions 122 may be provided on one body portion 121.
In the embodiment shown in fig. 3, the connection portion 122 has no opening, or the nickel sheet 12 is located at the connection portion 122 and has no opening, and the entire nickel sheet 12 may be considered as a sealed nickel sheet 12, or the connection portion 122 may be considered as a sealed connection portion 122.
In the embodiment shown in fig. 6, the connection 122 may be considered as two or more ear-like structures with a gap 1221 therebetween, i.e., the connection 122 may be considered as a semi-open or open connection 122, or the entire nickel sheet 12 may be considered as a semi-open or open nickel sheet 12.
In one embodiment, the battery cell assembly further comprises waterproof paper (not shown) wrapped outside the battery cell housing 1. The waterproof paper also plays a role in dust prevention. Specifically, the waterproof paper may extend to cover the terminals where the nickel plate 12 is connected to the circuit board.
Compared with the prior art that the nickel sheet 12 basically protrudes out of the mounting surface 114 of the battery cell support 11, the nickel sheet 12 of the utility model has a part positioned in the accommodating hole 112, and the top surface of the nickel sheet 12 is flush with or below the outer surface of the battery cell support 11, so the design can avoid the situation that the protective piece wrapped outside the battery cell housing 1 is damaged due to the protruding part of the nickel sheet 12, thereby the waterproof paper, the other dustproof piece or the protective piece is invalid due to the fact that the nickel sheet 12 protrudes out of the mounting surface 114 of the battery cell support 11.
The foregoing descriptions of specific exemplary embodiments of the present utility model are presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the utility model and its practical application to thereby enable one skilled in the art to make and utilize the utility model in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.
Claims (10)
1. A cell housing, comprising:
The battery cell bracket (11) is internally provided with a containing cavity (111), the outer surface of the battery cell bracket (11) is provided with a containing hole (112), and the containing hole (112) is communicated with the containing cavity (111);
The nickel sheet (12) is arranged on the battery cell support (11), part of the nickel sheet (12) is positioned in the accommodating hole (112), and the top surface of the nickel sheet (12) is flush with or below the outer surface of the battery cell support (11).
2. The cell housing of claim 1, wherein the nickel plate (12) includes a body portion (121) and a connection portion (122) disposed on the body portion (121), the receiving hole (112) includes a first communication portion (1122) in communication with the receiving cavity (111), and the connection portion (122) is at least partially disposed within the first communication portion (1122).
3. The cell casing according to claim 2, wherein the receiving hole (112) further comprises a second communication portion (1121) opened on an outer surface of the cell holder (11), the first communication portion is opened on a bottom wall of the second communication portion (1121), and the body portion (121) is located in the second communication portion (1121).
4. A cell housing according to claim 3, wherein the connecting portion (122) is provided protruding on the body portion (121) in a direction away from the top surface of the nickel plate (12);
The second communication part (1121) has a larger size than the first communication part (1122), a stepped surface (1123) is formed between the second communication part (1121) and the first communication part (1122), and the body part (121) includes a fitting part (1211) that fits the stepped surface (1123).
5. The cell housing according to claim 4, characterized in that the nickel plate (12) forms a labyrinth structure (13) with the receiving hole (112).
6. The cell case according to claim 5, wherein a first gap (131) is formed between a side wall of the body portion (121) and the second communicating portion (1121), a second gap (132) is formed between the body portion (121) and the step surface (1123), and the labyrinth structure (13) includes the first gap (131) and the second gap (132) which are communicated.
7. The cell housing of claim 6, wherein a third gap (133) is formed between the connection portion (122) and the first communication portion (1122), the third gap (133) being in communication with the second gap (132), the labyrinth structure (13) including the third gap (133).
8. The cell housing according to claim 2, wherein the connection portion (122) is provided with a solder joint portion (123).
9. The cell housing according to claim 2, wherein the body portion (121) is provided with a plurality of connection portions (122).
10. A battery cell assembly, characterized by comprising a battery cell housing (1) according to any one of claims 1-9, a battery cell body (2) mounted in the battery cell housing (1), and waterproof paper wrapped outside the battery cell housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322655654.5U CN220963596U (en) | 2023-09-28 | 2023-09-28 | Battery cell shell and battery cell assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322655654.5U CN220963596U (en) | 2023-09-28 | 2023-09-28 | Battery cell shell and battery cell assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220963596U true CN220963596U (en) | 2024-05-14 |
Family
ID=90974413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322655654.5U Active CN220963596U (en) | 2023-09-28 | 2023-09-28 | Battery cell shell and battery cell assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220963596U (en) |
-
2023
- 2023-09-28 CN CN202322655654.5U patent/CN220963596U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |