CN215184375U

CN215184375U - Self-adaptation end plate and battery package

Info

Publication number: CN215184375U
Application number: CN202120314236.8U
Authority: CN
Inventors: 张辉; 王志正; 丁涛
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-12-14
Anticipated expiration: 2031-02-03

Abstract

The utility model discloses a self-adaptation end plate still discloses a battery package, and self-adaptation end plate includes end plate mounting, end plate apron and elastic component, and the end plate apron is connected with the end plate mounting, and the one side that the end plate mounting was kept away from to the end plate apron is used for with the group battery butt, and the elastic component is located between end plate mounting and the end plate apron, the both ends of elastic component respectively with end plate mounting and end plate apron butt. The utility model discloses a self-adaptation end plate and group battery butt absorb the expansion deformation of group battery through the compression elastic component that sets up between end plate mounting and end plate apron, prevent that the end plate from being out of shape by the top, and then improve the steadiness and the security of battery, also made things convenient for the equipment of end plate simultaneously.

Description

Self-adaptation end plate and battery package

Technical Field

The utility model relates to a battery module structural design field especially relates to a self-adaptation end plate and battery package.

Background

The battery package generally includes battery box, module end plate and piles up the group battery that forms by a plurality of batteries, and the both ends of group battery are provided with the module end plate, and battery box is put into to group battery and module end plate are whole, and module end plate and group battery are all fixed in the inside of battery box.

The module end plate in the prior art is usually formed integrally by extrusion or casting, and has small deformation. The battery package is at the assembling process, because of the tolerance of electric core self tolerance or other subassemblies between electric core, and the error between the subassembly is great when causing the assembly for no matter current battery package adopts end plate welding scheme or ribbon scheme, the assembly all has great difficulty, especially in big module assembling process, and the assembly degree of difficulty is big, and assembly efficiency is low.

In addition, the volume of the battery pack can be changed to a certain extent in different life periods, when the battery cell in the battery pack expands, the end plates rigidly arranged in the battery box abut against the battery pack, a large expansion force can be generated in the battery pack, the end plates rigidly arranged at the moment have adverse effects on the capacity and the electrical property of the battery cell, and the expansion force generated in the battery pack can bring negative effects on the rigidity and the strength of the end plates.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, provide a self-adaptation end plate and battery package that conveniently assembles and can absorb group battery expansion deformation.

The purpose of the utility model is realized through the following technical scheme:

an adaptive endplate comprising: the end plate fixing piece is connected with the end plate cover plate, and one surface of the end plate cover plate, which is far away from the end plate fixing piece, is used for abutting against the battery pack; the elastic piece is located the end plate mounting reaches between the end plate apron, the one end of elastic piece with the end plate mounting butt, the other end of elastic piece with the end plate apron butt.

In one embodiment, a limiting part protrudes from the end plate cover plate, a limiting groove is formed in the end plate fixing member, the limiting part is adapted to the shape of the limiting groove, and the limiting part is used for sliding back and forth along the direction of the limiting groove to enable the end plate cover plate to be close to or far away from the end plate fixing member.

In one embodiment, the limiting part is a dovetail structure, and the limiting groove is a dovetail groove structure.

In one embodiment, the plurality of limiting parts are arranged around the edge of the end plate cover plate, and the end plate fixing part is correspondingly provided with a plurality of limiting grooves.

In one embodiment, the end plate fixing member is provided with a fastening through hole for passing a bolt.

In one embodiment, the end plate fixing member is provided with a hollow structure.

In one embodiment, the elastic element is provided with an embedding part, and the embedding part is used for correspondingly embedding into the hollow structure.

In one embodiment, the elastic member is a rubber member, a foam member or a spring.

In one embodiment, the end plate cover plate is made of plastic or metal, and the end plate fixing piece is made of metal.

A battery pack comprising a battery box, a battery pack, and the adaptive end plate of any of the above, wherein:

the battery pack is arranged in the battery box, and the self-adaptive end plate is arranged between the battery box and the battery pack.

Compared with the prior art, the utility model discloses at least, following advantage has:

1. the utility model discloses an adaptive end plate is through setting up the end plate mounting, end plate apron and elastic component to make the end plate apron can follow the direction slip that is close to or keeps away from the end plate mounting and set up on the end plate mounting, and the both ends of end plate apron respectively with battery and end plate mounting butt, so, when assembling adaptive end plate, the elastic component that sets up between end plate apron and end plate mounting can be compressed, makes the distance between end plate apron and the end plate mounting reduce, has made things convenient for the equipment of end plate.

2. The utility model discloses a self-adaptation end plate finishes the back at the installation, even the battery pack has appeared the inflation condition after long-time use, the elastic component that is located between end plate apron and the end plate mounting can be compressed by nature to this absorbs the inflation deformation of battery pack, prevents that the end plate from being out of shape by the top, has also reduced the stress between battery pack and the end plate simultaneously, and then improves the steadiness and the security of battery.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in 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 for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an adaptive end plate according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the construction of an end plate cover plate of the adaptive end plate of FIG. 1;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a schematic diagram of the end plate fixture of the adaptive end plate of FIG. 1;

FIG. 5 is an enlarged view at B in FIG. 4;

fig. 6 is a schematic structural diagram of a battery pack according to an embodiment of the present invention.

Description of reference numerals:

an adaptive end plate 10; an end plate fixture 100; a limiting groove 110; a fastening via 120; a hollow structure 130; an end plate cover plate 200; a stopper portion 210; an elastic member 300; an embedding portion 310; a battery pack 20; a battery case 400; a battery pack 500.

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 shown in the 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.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, an adaptive end plate 10 includes an end plate fixing member 100, an end plate cover plate 200 and an elastic member 300, wherein the end plate cover plate 200 is connected to the end plate fixing member 100, the end plate cover plate 200 can be slidably disposed on the end plate fixing member 100, the end plate cover plate 200 is configured to slide in a direction close to or away from the end plate fixing member 100, and a surface of the end plate cover plate 200 away from the end plate fixing member 100 is configured to abut against a battery pack 500; the elastic member 300 is located between the end plate fixture 100 and the end plate cover 200, one end of the elastic member 300 abuts against the end plate fixture 100, and the other end of the elastic member 300 abuts against the end plate cover 200.

It should be noted that the elastic member 300 may be made of elastic materials such as rubber, foam, or springs, the end plate fixing member 100 may be fixed in the battery box 400 through a bolt or a riveting structure, or may be fixed in the battery box 400 through a welding manner, the elastic member 300 may be connected with the end plate cover plate 200 and the end plate fixing member 100 through glue or a snap, and a common sliding connection structure may be disposed at a connection portion between the end plate cover plate 200 and the end plate fixing member 100, so as to ensure that the end plate cover plate 200 slides accurately and smoothly relative to the end plate fixing member 100. As such, the end plate cover plate 200 may freely slide in a direction toward or away from the end plate fixture 100.

When the adaptive end plate 10 is mounted, the end plate fixing member 100 is fixed, and then the end plate cover plate 200 is pushed to move in the direction of the end plate fixing member 100, so that the elastic member 300 located between the end plate fixing member 100 and the end plate cover plate 200 is compressed, and finally the battery pack 500 is abutted to the end plate cover plate 200. As such, more installation margin can be left by pushing the end plate cover plate 200 when placing the battery pack 20, so as to facilitate installation. In addition, the battery pack 500 may expand after a period of use, and the elastic member 300 between the end plate fixture 100 and the end plate cover 200 is further compressed to relieve stress between the adaptive end plate 10 and the battery pack 500, thereby preventing the adaptive end plate 10 from being damaged by jacking.

Referring to fig. 2, 3, 4 and 5, in one embodiment, a limiting portion 210 is protrudingly disposed on the end plate cover plate 200, a limiting groove 110 is disposed on the end plate fixing member 100, the limiting portion 210 is adapted to the shape of the limiting groove 110, and the limiting portion 210 is configured to slide back and forth along the direction of the limiting groove 110 to enable the end plate cover plate 200 to approach or depart from the end plate fixing member 100.

It should be noted that the shape of the limiting portion 210 is adapted to the shape of the limiting groove 110, and a clearance fit may be provided between the limiting groove 110 and the limiting portion 210, so as to ensure a smooth relative sliding fit between the limiting groove 110 and the limiting portion 210.

Referring to fig. 2, 3, 4 and 5, in one embodiment, the position-limiting portion 210 is a dovetail structure, and the position-limiting groove 110 is a dovetail groove structure. It should be noted that, the limiting portion 210 is configured as a dovetail structure, and the limiting groove 110 is configured as a dovetail groove structure adapted to the dovetail, so that the limiting portion 210 can be prevented from coming off from the end plate fixing member 100, and the stability of the mutual fit between the limiting portion 210 and the limiting groove 110 is improved.

Referring to fig. 1 and 2, in one embodiment, a plurality of limiting portions 210 are provided, the plurality of limiting portions 210 are disposed around the edge of the end plate cover plate 200, and a plurality of limiting grooves 110 are correspondingly disposed on the end plate fixing member 100.

It should be noted that, in order to further improve the stability and the sliding accuracy of the mutual fit between the limiting portions 210 and the limiting grooves 110, in the embodiment, a plurality of limiting portions 210 are disposed around the outer side edge of the end plate cover plate 200, correspondingly, a plurality of limiting grooves 110 are correspondingly disposed on the end plate fixing member 100, and the stability and the accuracy of the end plate cover plate 200 sliding on the end plate fixing member 100 are improved by the fit between the plurality of limiting portions 210 and the limiting grooves 110.

Referring to fig. 4, in one embodiment, the end plate fixing member 100 is provided with fastening through holes 120, and the fastening through holes 120 are used for bolts to pass through.

It should be noted that the end plate fixing member 100 is provided with the fastening through hole 120 to facilitate the installation of the end plate fixing member 100, and the end plate fixing member 100 can be fixed on the installation surface only by passing a bolt through the fastening through hole 120 during the installation.

Referring to fig. 4, in one embodiment, the end plate fixing member is provided with a hollow structure 130.

It should be noted that, in order to consider both the simplicity and the stability of the end plate fixing member 100 during the installation process and after the installation, in this embodiment, three fastening through holes 120 are provided on the end plate fixing member 100, and in order to further reduce the weight of the adaptive end plate 10, in this embodiment, a hollow structure 130 is provided between every two adjacent fastening through holes 120, so that the material is saved, and the weight of the adaptive end plate 10 is reduced.

Referring to fig. 1, in one embodiment, the elastic member 300 is provided with the embedding portions 310, the embedding portions 310 are used for being embedded into the hollow structures 130, and in practical use, the number of the embedding portions 310 can be flexibly set according to the number of the hollow structures 130, for example, in one embodiment, two hollow structures 130 are provided, the number of the embedding portions 310 is correspondingly two, and the two embedding portions 310 are embedded into the two hollow structures 130 in a one-to-one correspondence manner, so that the connection between the elastic member 300 and the end plate fixing member 100 is tighter, and the relative position accuracy of the two can be improved.

In one embodiment, the elastic member 300 is a rubber member, a foam member, or a spring. The material of the elastic member 300 may be selected according to the size of the battery pack 500 and the gap margin of the adaptive end plate 10.

In one embodiment, the end plate cover plate 200 is a plastic or metal member.

In one embodiment, the end plate fixture 100 is a metal piece. For example, common steel 45 or aluminum may be selected.

Referring to fig. 6, a battery pack 20 includes a battery box 400, a battery pack 500, and the adaptive end plate 10 of any one of the above embodiments, wherein: the battery pack 500 is disposed in the battery box 400, and the adaptive end plate 10 is disposed between the battery box 400 and the battery pack 500.

It should be noted that the battery pack 500 may be composed of a plurality of battery cells electrically connected in sequence, the adaptive end plate 10 is disposed between the battery pack 500 and the inner side wall of the battery box 400, and the adaptive end plate 10 may be fixed in the battery box 400 by bolts, so that when the battery pack 500 expands, the end plate cover plate 200 in the adaptive end plate 10 may be pushed by the battery pack 500 to be close to the end plate fixing member 100, and the elastic member 300 between the end plate fixing member 100 and the end plate cover plate 200 is compressed and contracted to absorb the expansion deformation of the battery pack 500.

1. the utility model discloses an adaptive end plate 10 is through setting up end plate mounting 100, end plate apron 200 and elastic component 300, and make end plate apron 200 can follow the direction that is close to or keeps away from end plate mounting 100 and slide and set up on end plate mounting 100, and the both ends of end plate apron 200 respectively with battery and end plate mounting 100 butt, so, when assembling adaptive end plate 10, elastic component 300 that sets up between end plate apron 200 and end plate mounting 100 can be compressed, make the distance between end plate apron 200 and end plate mounting 100 reduce, the equipment of end plate has been made things convenient for.

2. The utility model discloses a self-adaptation end plate 10 is after the installation finishes, even the battery pack 500 has appeared the inflation condition after long-time use, the elastic component 300 that is located between end plate apron 200 and the end plate mounting 100 can be compressed by nature to this absorption battery pack 500's expansion deformation prevents that the end plate from being out of shape by the top, has also reduced the stress between battery pack 500 and the end plate simultaneously, and then improves the steadiness and the security of battery.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An adaptive endplate, comprising:

an end plate fixture;

the end plate cover plate is connected with the end plate fixing piece, and one surface, far away from the end plate fixing piece, of the end plate cover plate is used for being abutted against a battery pack;

the elastic component, the elastic component is located the end plate mounting reaches between the end plate apron, the one end of elastic component with the end plate mounting butt, the other end of elastic component with the end plate apron butt.

2. The adaptive end plate according to claim 1, wherein a limiting portion protrudes from the end plate cover plate, a limiting groove is formed in the end plate fixing member, the limiting portion is adapted to the shape of the limiting groove, and the limiting portion is configured to slide back and forth along the direction of the limiting groove to enable the end plate cover plate to approach or depart from the end plate fixing member.

3. The adaptive end plate according to claim 2, wherein the limiting portion is a dovetail structure and the limiting groove is a dovetail groove structure.

4. The adaptive end plate according to claim 2 or 3, wherein a plurality of limiting portions are provided, the plurality of limiting portions are provided around the edge of the end plate cover plate, and a plurality of limiting grooves are correspondingly provided on the end plate fixing member.

5. The adaptive end plate according to claim 1, wherein the end plate fixing member is provided with fastening through holes for bolts to pass through.

6. The adaptive end plate according to claim 5, wherein the end plate fixing member is provided with a hollowed-out structure.

7. The adaptive end plate according to claim 6, wherein the elastic member is provided with an embedded portion, and the embedded portion is configured to be correspondingly embedded in the hollow structure.

8. The adaptive endplate of claim 1, wherein the resilient member is a rubber member, a foam member, or a spring.

9. The adaptive end plate of claim 1, wherein the end plate cover plate is a plastic or metal member and the end plate securing member is a metal member.

10. A battery pack comprising a battery case, a battery pack, and the adaptive end plate of any one of claims 1-9, wherein: