CN217086803U - Power battery and power battery assembly - Google Patents
Power battery and power battery assembly Download PDFInfo
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- CN217086803U CN217086803U CN202220506791.5U CN202220506791U CN217086803U CN 217086803 U CN217086803 U CN 217086803U CN 202220506791 U CN202220506791 U CN 202220506791U CN 217086803 U CN217086803 U CN 217086803U
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- 239000007769 metal material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 description 11
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a power battery and power battery subassembly, power battery wherein includes: the device comprises a shell, a handle and a handle, wherein the shell is internally provided with an accommodating space, and at least one end of the shell is arranged in an open manner; the top cover is arranged at the opening of the shell in a covering manner; the top cap includes apron and utmost point post, wherein, utmost point post sets up on the apron, the surface of apron one side has first surface and second surface in the length direction of casing, utmost point post expose in at least a part of the outside of power battery is located the first surface and the scope that the second surface is injectd.
Description
Technical Field
The utility model relates to a power battery and power battery subassembly.
Background
With the rapid development of energy storage technology and electric vehicle technology, the battery power supply which is more environment-friendly is increasingly widely applied, and the requirements on high capacity, high endurance and small volume of the battery are also increasingly strict.
The power battery in the prior art mainly comprises a square battery and a round battery. The square battery mainly comprises a shell, a cover plate and a pole arranged on the cover plate. The cover plate is generally flat, and the post is protruded on the cover plate. This structure of the prismatic battery has the following disadvantages: the arrangement mode of the pole column can increase the overall size of the power battery in one direction, and when the power battery is installed into a battery pack with the same size, the space utilization rate is low; as shown in fig. 1, when the poles 30 of the power battery are electrically connected through the connecting sheet 10, the occupied size of the power battery 20 during installation is further increased, and the power battery 20 generates heat during operation, a heat dissipation device needs to be arranged, and after the connecting sheet 10 is arranged on the flat cover plate, the heat dissipation device cannot be arranged on one side of the cover plate basically, so that the heat dissipation of the power battery 20 is not facilitated, and the service life, performance and safety of the power battery may be affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a power battery that structural design is reasonable.
The embodiment of the utility model provides a solve the technical scheme that above-mentioned problem adopted and be: a power cell, comprising:
the device comprises a shell, a handle and a handle, wherein the shell is internally provided with an accommodating space, and at least one end of the shell is arranged in an open manner; and
the top cover is arranged at the opening of the shell in a covering manner;
the top cap includes apron and utmost point post, wherein, utmost point post sets up on the apron, the surface of apron one side has first surface and second surface in the length direction of casing, utmost point post expose in at least a part of the outside of power battery is located the first surface and the scope that the second surface is injectd.
The embodiment of the utility model provides an in the length direction of casing, utmost point post expose in power battery's outside part is located completely the first surface reaches the within range that the second surface was injectd.
The embodiment of the utility model provides a first surface reaches second surface parallel arrangement, just the first surface reaches the second surface passes through a third surface connection, utmost point post set up in the third surface or on the second surface.
The embodiment of the utility model provides a utmost point post set up in on the third surface, just utmost point post is in on the length direction of casing does not exceed the scope prescribed a limit to at the both ends of casing.
The embodiment of the utility model provides a third surface perpendicular to first surface.
The embodiment of the utility model provides a the apron is made for the metal material, just the apron forms through buckling first surface, second surface and third surface.
The embodiment of the utility model provides a apron has embedding part and spacing face, the embedding part embedding inside the casing, and spacing face then with the tip of casing offsets.
The embodiment of the utility model provides a the apron with casing welded fastening.
The embodiment of the utility model provides a the top cap has two sets ofly, two sets of top caps set up respectively in the both ends of casing, wherein a set of the utmost point post of top cap constitutes anodal utmost point post, and another group the utmost point post of top cap constitutes negative pole utmost point post.
An embodiment of the utility model provides a power battery subassembly is still provided, including connection piece and a plurality of any of claims 1 to 9 power battery, a plurality of power battery arranges along a direction, connection piece electric connection power battery's utmost point post, wherein, the connection piece is in no longer than on power battery's the length direction the scope of injecing between the first surface of top cap, the connection piece is in no longer than on power battery's the direction of height the terminal surface of power battery's direction of height's both sides.
Compared with the prior art, the utility model, have following one or more advantage or effect: the structure is simple, and the design is reasonable; after the connecting sheet is arranged on the power battery, the occupied space of the power battery after the power battery is installed on a battery pack is not increased, the space utilization rate can be improved, and the integral energy density can be improved; in addition, aiming at the heat dissipation of the power battery, heat dissipation devices can be arranged on the periphery of the shell of the power battery and the top cover (the top cover is divided into the area above the second surface) so as to dissipate the heat of the power battery, so that the heat dissipation area can be increased, the heat dissipation of the power battery is facilitated, and the service life and the safety of the power battery are improved; finally, a notch is formed at the second surface of the cover plate, and other electronic components in the battery pack can be arranged at the notch besides the connecting sheet, so that the space is better utilized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a power battery in the prior art.
Fig. 2 is a schematic perspective view of the power battery in embodiment 1.
Fig. 3 is a front view structural diagram of the top cover.
Fig. 4 is a schematic perspective view of the top cover.
Fig. 5 is an enlarged view at a in fig. 4.
Fig. 6 is a schematic perspective view of a power battery module according to embodiment 2.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are illustrated in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. The following directions such as "axial direction", "above", "below", etc. are all for showing the structural position relationship more clearly, and are not limiting to the present invention. In the present invention, the terms "vertical", "horizontal" and "parallel" are defined as: including ± 10% of cases based on the standard definition. For example, vertical generally refers to an angle of 90 degrees relative to a reference line, but in the present invention, vertical refers to a situation within 80 to 100 degrees inclusive.
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Example 1
Referring to fig. 2 to 5, the power battery of the present embodiment is a power battery, and is characterized by including a housing 1 and a top cover 2.
The housing 1 in this embodiment has an accommodating space therein, and at least one end of the housing 1 is open. The housing 1 may be made of aluminum or an aluminum-based alloy. The housing 1 in this embodiment may also be substantially square.
The top cover 2 in this embodiment is provided at the opening of the housing 1.
The top cover 2 in this embodiment includes a cover plate 21 and a pole 22, wherein the pole 22 is disposed on the cover plate 21, a surface of one side of the cover plate 21 has a first surface 211 and a second surface 212, and at least a portion of the pole 22 exposed outside the power battery is located within a range defined by the first surface 211 and the second surface 212 in a length direction of the housing 1.
Further, in the length direction of the housing 1, the portion of the pole 22 exposed outside the power battery is completely located within the range defined by the first surface 211 and the second surface 212. In other words, the pole 22 does not occupy the extra size of the power battery. Therefore, when the power battery is mounted to the battery pack, the pole 22 does not occupy additional space within the battery pack, and therefore, the space utilization can be improved.
In this embodiment, the first surface 211 and the second surface 212 are disposed in parallel, the first surface 211 and the second surface 212 are connected by a third surface 213, and the post 22 is disposed on the third surface 213 or the second surface 212.
Preferably, the pole 22 is disposed on the third surface 213, and the pole 22 does not exceed the range defined by the two ends of the housing 1 in the length direction of the housing 1. When the terminal post 22 is disposed on the third surface 213, the connecting sheet 3 is fixed on the terminal post 22, which is more favorable for the external electrical connection of the connecting sheet 3.
The third surface 213 is perpendicular to the first surface 211.
In this embodiment, the cover plate 21 is made of a metal material, and the cover plate 21 is bent to form the first surface 211, the second surface 212, and the third surface 213. When the cover plate 21 is processed, the cover plate 21 is firstly formed by punching, then the punched cover plate 21 is bent and formed, the bent cover plate 21 is bent to be matched with the shell 1, and finally the pole 22 is fixed on the cover plate 21, so that the top cover 2 is formed. In this embodiment, the connection manner between the post 22 and the cover plate 21 is the prior art, and is not described herein again.
In this embodiment, the cover plate 21 has an embedded portion 214 and a limiting surface 215, the embedded portion 214 is embedded in the housing 1, and the limiting surface 215 is abutted against an end of the housing 1, so that the cover plate 21 can be better matched with the housing 1.
In this embodiment, the cover plate 21 is welded and fixed to the housing 1. Specifically, after the fitting portion 214 of the cover 21 is fitted into the case 1, the cover 21 and the case 1 are fixed to each other by welding on the outer side of the cover 21.
This embodiment the top cap 2 has two sets ofly, two sets of top caps 2 set up respectively in the both ends of casing 1, two sets of top caps 2's the same or roughly the same structure, and the symmetry sets up in the both sides of casing 1, and one of them is a set of the utmost point post 22 of top cap 2 constitutes anodal utmost point post, and another group the utmost point post 22 of top cap 2 constitutes negative pole post.
Example 2
Referring to fig. 6, this embodiment further provides a power battery assembly, which includes a connecting sheet 3 and the power batteries in embodiment 1, wherein a plurality of the power batteries are arranged along a direction, the connecting sheet 3 is electrically connected to the poles 22 of the power batteries, the connecting sheet 3 does not exceed a range defined between the first surfaces 211 of the top covers 2 on both sides of the power batteries in the length direction of the power batteries, and the connecting sheet 3 does not exceed end surfaces on both sides of the power batteries in the height direction of the power batteries.
The connecting sheets 3 in this embodiment are provided with two groups, wherein one group of connecting sheets 3 is connected with a positive pole post of the power battery, and the other group of connecting sheets 3 is connected with a negative pole post of the power battery.
In the embodiment, after the connecting sheet 3 is arranged on the power battery, the occupied space of the power battery after being installed on a battery pack is not increased, the space utilization rate is improved, and the overall energy density is improved; in addition, for the heat dissipation of the power battery, heat dissipation devices can be arranged on the periphery of the shell 1 of the power battery and the top cover 2 (the top cover 2 excludes the area above the second surface 212) so as to dissipate the heat of the power battery, so that the heat dissipation area can be increased, the heat dissipation of the power battery is facilitated, and the service life and the safety of the power battery are improved; finally, a notch is formed at the second surface 212 of the cap plate 21, and other electronic components in the battery pack may be disposed at the notch in addition to the connecting tab 3, thereby better utilizing the space.
The above description in this specification is merely illustrative of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. A power cell, comprising:
the device comprises a shell, a handle and a handle, wherein the shell is internally provided with an accommodating space, and at least one end of the shell is arranged in an open manner; and
the top cover is arranged at the opening of the shell in a covering manner;
the top cap includes apron and utmost point post, wherein, utmost point post sets up on the apron, the surface of apron one side has first surface and second surface in the length direction of casing, utmost point post expose in at least a part of the outside of power battery is located the first surface and the scope that the second surface is injectd.
2. The power cell of claim 1, wherein: in the length direction of the shell, the part of the pole exposed out of the power battery is completely positioned in the range defined by the first surface and the second surface.
3. The power cell of claim 1 or 2, wherein: the first surface and the second surface are arranged in parallel, the first surface and the second surface are connected through a third surface, and the pole is arranged on the third surface or the second surface.
4. The power cell of claim 3, wherein: the pole is arranged on the third surface, and the pole is not beyond the range limited by the two ends of the shell in the length direction of the shell.
5. The power cell of claim 3, wherein: the third surface is perpendicular to the first surface.
6. The power cell of claim 3, wherein: the cover plate is made of metal materials, and the cover plate is bent to form the first surface, the second surface and the third surface.
7. The power cell of claim 1, wherein: the cover plate is provided with an embedding part and a limiting surface, the embedding part is embedded into the shell, and the limiting surface is abutted against the end part of the shell.
8. The power cell of claim 1 or 7, wherein: the cover plate is fixed with the shell in a welding mode.
9. The power cell of claim 1, wherein: the top cap has two sets ofly, two sets of top caps set up respectively in the both ends of casing, one of them is organized the utmost point post of top cap constitutes anodal utmost point post, and another group the utmost point post of top cap constitutes negative pole post.
10. A power battery assembly, comprising a plurality of power batteries according to any one of claims 1 to 9 and a connecting sheet, wherein the plurality of power batteries are arranged along one direction, the connecting sheet is electrically connected with poles of the power batteries, wherein the connecting sheet does not exceed the range defined between the first surfaces of the top covers on both sides of the power batteries in the length direction of the power batteries, and the connecting sheet does not exceed the end surfaces on both sides of the power batteries in the height direction of the power batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220506791.5U CN217086803U (en) | 2022-03-10 | 2022-03-10 | Power battery and power battery assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220506791.5U CN217086803U (en) | 2022-03-10 | 2022-03-10 | Power battery and power battery assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217086803U true CN217086803U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220506791.5U Active CN217086803U (en) | 2022-03-10 | 2022-03-10 | Power battery and power battery assembly |
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| Country | Link |
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| CN (1) | CN217086803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024040545A1 (en) * | 2022-08-26 | 2024-02-29 | 宁德时代新能源科技股份有限公司 | Top cover assembly, battery cell, battery, and electric apparatus |
-
2022
- 2022-03-10 CN CN202220506791.5U patent/CN217086803U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024040545A1 (en) * | 2022-08-26 | 2024-02-29 | 宁德时代新能源科技股份有限公司 | Top cover assembly, battery cell, battery, and electric apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A power battery and power battery module Effective date of registration: 20230207 Granted publication date: 20220729 Pledgee: Agricultural Bank of China Limited by Share Ltd. South Lake branch Pledgor: ZHEJIANG ZZ PRECISION TECHNOLOGY CO.,LTD. Registration number: Y2023330000314 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: No. 86 Kechuang Road, Wuzhen Town, Tongxiang City, Jiaxing City, Zhejiang Province, 314501 Patentee after: Zhejiang Zhongze Precision Technology Co.,Ltd. Country or region after: China Address before: 314031 Building 9, hi tech equipment entrepreneurship center, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG ZZ PRECISION TECHNOLOGY CO.,LTD. Country or region before: China |
|
| CP03 | Change of name, title or address |