CN218896713U

CN218896713U - Top cap subassembly of battery and have its battery

Info

Publication number: CN218896713U
Application number: CN202223250687.3U
Authority: CN
Inventors: 刘杰; 贡伟红
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-04-21
Anticipated expiration: 2032-12-05

Abstract

The utility model discloses a top cap subassembly of battery and battery that has it, the top cap subassembly of battery includes: the top cover main body is provided with a pole, and the peripheral wall of the pole is provided with a first matching part; and the lower plastic is laminated with the top cover main body, the lower plastic is provided with a mounting hole for mounting the pole, and the inner peripheral wall of the mounting hole is provided with a second matching part matched with the first matching part. According to the top cover assembly of the battery, the first matching part on the pole is matched with the second matching part of the mounting hole, so that the top cover main body is matched with the lower plastic, the process complexity of the top cover assembly of the battery can be reduced, the production cost is reduced, the production efficiency is improved, the limit of the use environment is reduced, the structural reliability and stability are improved, and the service life of the battery is prolonged.

Description

Top cap subassembly of battery and have its battery

Technical Field

The present utility model relates to the field of batteries, and more particularly, to a top cap assembly of a battery and a battery having the same.

Background

With the increasing maturity of lithium ion battery technology, lithium ion batteries are widely applied to the fields of electric automobiles and energy storage as power batteries, so that the requirements of people on the use performance and the safety of the lithium ion batteries are increasing.

The lithium battery top cover is used as a fitting in a lithium ion battery, and firstly, the lithium battery top cover is welded with the aluminum shell to isolate the internal environment from the external environment to play a sealing role, and secondly, the lithium battery top cover is connected with an internal circuit to convey the internal current of the battery to the outside through a top cover pole to play a role in guiding flow.

In the prior art, the lower plastic of the lithium battery top cover is connected with the top cover main body in a hot melting or gluing mode, the hot melting connection process is relatively complex, the equipment cost is high, and the production efficiency is low; the adhesive is constrained by the use environment, the structural reliability and stability are poor, and the service life is short.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the top cover assembly of the battery, which can reduce the process complexity, reduce the production cost, improve the production efficiency and improve the structural reliability.

The utility model also provides a battery, which comprises the top cover assembly of the battery.

The top cap assembly of the battery according to the embodiment of the utility model includes: the top cover body is provided with a pole, and the peripheral wall of the pole is provided with a first matching part; the lower plastic is laminated with the top cover main body, the lower plastic is provided with a mounting hole for mounting the pole, and the inner peripheral wall of the mounting hole is provided with a second matching part matched with the first matching part.

According to the top cover assembly of the battery, the first matching part on the pole is matched with the second matching part of the mounting hole, so that the top cover main body is matched with the lower plastic, the process complexity of the top cover assembly of the battery can be reduced, the production cost is reduced, the production efficiency is improved, the limit of the use environment is reduced, the structural reliability and stability are improved, and the service life of the battery is prolonged.

In addition, the top cap assembly of the battery according to the present utility model may further have the following additional technical features:

in some embodiments, the first mating portion is formed as a groove and the second mating portion is formed as a protrusion.

In some embodiments, the protrusion is an integral piece with the lower plastic.

In some embodiments, the groove is annular extending in a circumferential direction of the pole.

In some embodiments, the protrusion is an annular protrusion extending in a circumferential direction of the mounting hole.

In some embodiments, the protrusion is a plurality of protrusions spaced apart along a circumferential direction of the mounting hole.

In some embodiments, the grooves are a plurality of the protrusions spaced apart in the circumferential direction of the pole, and the protrusions are a plurality of the grooves and the protrusions are one-to-one correspondence.

In some embodiments, the pole is a round pole.

In some embodiments, the posts are two spaced apart and the mounting holes are two corresponding.

The battery according to the embodiment of the utility model comprises the top cover assembly of the battery.

According to the battery provided by the embodiment of the utility model, the top cover assembly of the battery is provided, and the first matching part on the pole is matched with the second matching part of the mounting hole, so that the top cover main body is matched with the lower plastic, the process complexity of the top cover assembly of the battery can be reduced, the production cost is reduced, the production efficiency is improved, the limit of the use environment is reduced, the structural reliability and stability are improved, and the service life of the battery is prolonged.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a perspective view of a terminal of a cap assembly of a battery according to an embodiment of the present utility model;

fig. 2 is an exploded view of a top cap assembly of a battery according to an embodiment of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2;

fig. 4 is a perspective view of a top cap assembly of a battery according to an embodiment of the present utility model;

FIG. 5 is an enlarged view of a portion of FIG. 4;

fig. 6 is a sectional view of a top cap assembly of a battery according to an embodiment of the present utility model.

Reference numerals:

100. a top cap assembly of the battery;

1. a top cover main body; 11. a pole; 111. a first mating portion;

2. lower plastic; 21. a mounting hole; 211. and a second mating portion.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The top cap assembly 100 of the battery according to the embodiment of the present utility model is described below with reference to the accompanying drawings.

As shown in fig. 2, the top cap assembly 100 of the battery according to the embodiment of the present utility model includes a top cap body 1 and a lower plastic 2.

Specifically, referring to fig. 3, a pole 11 is provided on a top cover body 1, a first mating portion 111 is provided on a peripheral wall of the pole 11, a lower plastic 2 is laminated with the top cover body 1, and the lower plastic 2 is located at one side of the top cover body 1 facing the battery, a mounting hole 21 for mounting the pole 11 is provided on the lower plastic 2, and a second mating portion 211 mated with the first mating portion 111 is provided on an inner peripheral wall of the mounting hole 21, so that the pole 11 can be mated with the lower plastic 2 through the first mating portion 111 and the second mating portion 211, and then the top cover body 1 is mated with the lower plastic 2. Compared with the prior art that the top cover main body is connected with the lower plastic in a hot melting or gluing mode, the process complexity of the top cover assembly 100 of the battery can be reduced, the production cost is reduced, the production efficiency is improved, the limit of the use environment is reduced, the structural reliability and stability are improved, and the service life of the battery is prolonged.

According to the top cover assembly 100 of the battery, the first matching part 111 on the pole 11 is matched with the second matching part 211 of the mounting hole 21, so that the top cover main body 1 is matched with the lower plastic 2, the process complexity of the top cover assembly 100 of the battery can be reduced, the production cost is reduced, the production efficiency is improved, the limit of the use environment is reduced, the structural reliability and stability are improved, and the service life of the battery is prolonged.

In some embodiments of the present utility model, referring to fig. 3, the first mating portion 111 is formed as a groove, the groove is located at one end of the pole 11 near the lower plastic 2 and has a certain interval with the surface of the pole 11 facing the lower plastic 2, and the second mating portion 211 is formed as a protrusion, which has a simple structure, is convenient for the production and processing of the pole 11 and the lower plastic 2, can improve the reliability of the connection between the top cover main body 1 and the lower plastic 2, and is convenient for the disassembly and assembly of the top cover main body 1 and the lower plastic 2.

In a further embodiment of the present utility model, the protrusion and the lower plastic 2 are integrally formed, so that the assembly process of the top cap assembly 100 of the battery can be simplified, the assembly efficiency of the top cap assembly 100 of the battery can be improved, and the time for manufacturing and processing the battery can be reduced.

In a further embodiment of the present utility model, referring to fig. 1, the groove is in a ring shape extending along the circumferential direction of the pole 11, which facilitates the processing of the pole 11 and can improve the production efficiency of the cap body 1.

In a further embodiment of the present utility model, the protrusion is an annular protrusion extending in the circumferential direction of the mounting hole 21, and the annular protrusion is matched with the annular groove of the pole 11, so that the reliability of the connection between the top cover main body 1 and the lower plastic 2 can be improved.

In a further embodiment of the present utility model, referring to fig. 3, the protrusions are formed in a plurality of spaced apart positions along the circumferential direction of the mounting hole 21, so that the pole 11 can be fixed to the lower plastic 2 from a plurality of positions, thereby improving the reliability of the cooperation between the top cap body 1 and the lower plastic 2, improving the stability of the top cap assembly 100 of the battery, and further improving the reliability of the battery. For example, the projections may be three, four, five, six, seven, eight, or the like spaced apart in the circumferential direction of the mounting hole 21. In a specific example, referring to fig. 3, four protrusions spaced apart in the circumferential direction of the mounting hole 21 are provided, and the four protrusions are all engaged with the annular groove, so that the pole 11 can be fixed with the lower plastic 2 from all around, the reliability of the engagement of the top cap main body 1 with the lower plastic 2 is improved, the stability of the top cap assembly 100 of the battery is improved, and the reliability of the battery is further improved.

In a further embodiment of the present utility model, the plurality of grooves are spaced apart along the circumferential direction of the post 11, the plurality of protrusions are spaced apart along the circumferential direction of the mounting hole 21, and the plurality of grooves correspond to the plurality of protrusions one by one, so that the post 11 and the lower plastic 2 can be fixed from a plurality of places, the reliability of the cooperation of the top cap body 1 and the lower plastic 2 is improved, and the stability of the top cap assembly 100 of the battery is improved.

In some embodiments of the present utility model, the first mating portion 111 is formed as a protrusion, the protrusion is located at one end of the pole 11 near the lower plastic 2, and the second mating portion 211 is formed as a groove, which has a simple structure, is convenient for the production and processing of the pole 11 and the lower plastic 2, can improve the reliability of connecting the top cover assembly with the lower plastic 2, and is convenient for the disassembly and assembly of the top cover main body 1 and the lower plastic 2.

In some embodiments of the present utility model, referring to fig. 1 and 5, the pole 11 is a circular pole 11, and the corresponding mounting hole 21 is a circular mounting hole 21, so that the cooperation between the circular pole 11 and the circular mounting hole 21 can be used to position the cooperation between the top cover main body 1 and the lower plastic 2, thereby improving the assembly efficiency and accuracy of the top cover assembly 100 of the battery.

In some embodiments of the present utility model, referring to fig. 4, the poles 11 are spaced apart from each other, and the mounting holes 21 are correspondingly spaced apart from each other, so that the top cap body 1 can be matched with the lower plastic 2 from the spaced apart two positions, thereby improving the reliability of the matching of the top cap body 1 with the lower plastic 2 and improving the stability of the top cap assembly 100 of the battery.

The utility model also provides a battery with the embodiment.

According to the battery of the embodiment of the utility model, through the top cover assembly 100 provided with the battery of the embodiment, the first matching part 111 on the pole 11 is matched with the second matching part 211 of the mounting hole 21, so that the top cover main body 1 is matched with the lower plastic 2, the process complexity of the top cover assembly 100 of the battery can be reduced, the production cost is reduced, the production efficiency is improved, the limit of the use environment is reduced, the structural reliability and stability are improved, and the service life of the battery is prolonged.

Other constructions and operations of the top cap assembly 100 of the battery and the battery according to the embodiment of the present utility model are known to those of ordinary skill in the art, and will not be described in detail herein.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A top cap assembly of a battery, comprising:

the novel solar cell battery comprises a top cover main body (1), wherein a pole (11) is arranged on the top cover main body (1), and a first matching part (111) is arranged on the peripheral wall of the pole (11);

the lower plastic (2), lower plastic (2) with top cap main part (1) range upon range of setting, have on lower plastic (2) be used for installing mounting hole (21) of utmost point post (11), have on the inner peripheral wall of mounting hole (21) with second cooperation portion (211) of first cooperation portion (111) complex.

2. The top cap assembly of the battery according to claim 1, wherein the first fitting portion (111) is formed as a groove and the second fitting portion (211) is formed as a protrusion.

3. The top cover assembly of a battery according to claim 2, wherein the protrusion is an integral piece with the lower plastic (2).

4. The top cap assembly of a battery according to claim 2, wherein the groove is annular extending in the circumferential direction of the pole (11).

5. The top cap assembly of a battery according to claim 4, wherein the projection is an annular projection extending in a circumferential direction of the mounting hole (21).

6. The battery top cap assembly according to claim 4, wherein the protrusions are a plurality of spaced apart in the circumferential direction of the mounting hole (21).

7. The top cap assembly of a battery according to claim 2, wherein the grooves are a plurality of spaced apart in the circumferential direction of the pole (11), the protrusions are a plurality of spaced apart in the circumferential direction of the mounting hole (21), and the grooves are in one-to-one correspondence with the protrusions.

8. The top cap assembly of a battery according to claim 1, wherein the polar column (11) is a round polar column (11).

9. The top cap assembly of a battery according to claim 1, wherein the poles (11) are two spaced apart, and the mounting holes (21) are two corresponding.

10. A battery characterized by comprising a top cap assembly (100) of a battery according to any one of claims 1-9.