CN217361692U

CN217361692U - Assembly structure of large-scale cylinder electricity core

Info

Publication number: CN217361692U
Application number: CN202122370516.3U
Authority: CN
Inventors: 柳勇; 张志平; 刘聪; 曾国强; 叶国华
Original assignee: Guangdong Greenway Technology Co Ltd
Current assignee: Guangdong Greenway Technology Co Ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-09-02
Anticipated expiration: 2031-09-28

Abstract

The utility model provides an assembly structure of a large-scale cylindrical battery cell, which comprises a battery cell bracket group, wherein the battery cell bracket group comprises a battery cell bracket which adopts a longitudinal design, and a plurality of cell assembling positions are arranged on the cell support, the cell assembling positions are arranged in a semi-cylindrical shape, a large cylindrical cell is arranged in the cell assembling positions, two ends of the large cylindrical cell are provided with annular grooves, assembling bone positions are arranged at the positions corresponding to the annular grooves and positioned at the inner side of the cell support, the upper side and the lower side of the cell support are provided with assembling buckles and assembling clamping positions, and the four corners of the cell support are provided with unit assembling hole positions, the utility model improves the assembling stability by matching the assembling bone positions and the clamping devices with the vertically designed cell support, furthermore, a plurality of cell support groups can be connected into a whole through the unit assembling hole sites, so that the development and design difficulty is greatly reduced, and the manufacturing time and the cost are correspondingly reduced; the battery assembly difficulty is reduced, and the reliability is improved; the flexibility of the assembly mode is increased, and the expandability is enhanced.

Description

Assembly structure of large-scale cylinder electricity core

Technical Field

The utility model relates to a cylinder electricity core assembly technical field, concretely relates to assembly structure of large-scale cylinder electricity core.

Background

The cylindrical battery cell is the most commonly used battery cell in the new energy lithium battery industry at present, and is divided into a lithium iron phosphate cylindrical battery cell, a ternary lithium cylindrical battery cell and other cylindrical battery cells according to different material systems. According to the different physical dimensions, the materials are divided into 18650, 21700, 26650 and the like. The most common are cylindrical cells of both types 18650 and 21700.

From battery PACK's perspective, the PACK design of cylindrical electric core is very traditional: firstly, according to the requirement of battery voltage and total capacity of the battery, plan the quantity of the required cylindrical electric core of whole PACK, calculate the mode of series-parallel connection again, secondly according to the size of battery package inner space, adjust the arrangement of electric core, at last according to the information above, the comprehensive consideration designs the electric core support of a plastics material, it has a large amount of round holes to open above this kind of support, it is corresponding with the electric core arrangement mode and the quantity that plan well, then with two electric core supports, go to assemble the cylinder type electric core that has planned quantity simultaneously, make electric core and two supports assemble into a whole.

However, this design has the disadvantage of inconsistent assembly dimensional variation: 1, the outer diameter of the electric diameter has deviation; and 2, the sizes of a plurality of round holes on the battery cell support, the round hole in the middle part and the round hole at the edge have deviation. The consequence that causes is that every electric core can't be fastened to the electric core support, in order to look after all electric cores all can pack into the round hole on the support, generally makes electric core support aperture with the biggest electric core external diameter.

For some cells, the cells may be assembled just tightly, but other cells with smaller sizes cannot be tightly matched when being installed in the cell support, and the cells are always in a loose state.

This is a big risk for the whole battery: the battery continuously vibrates in the operation process, and the anode and cathode nickel sheets of the battery core in a loose state are likely to be finally fractured by vibration, so that the battery failure is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, provide an assembly structure of large-scale cylinder electricity core and method thereof.

The technical scheme of the utility model as follows:

an assembly structure of a large cylindrical battery cell, comprising:

the battery core support is characterized by comprising two battery core supports which are matched with each other, the battery core supports are designed longitudinally, a plurality of battery core assembling positions are arranged on the battery core supports, the battery core assembling positions are arranged to be semi-cylindrical, and large cylindrical battery cores are arranged in the battery core assembling positions.

The utility model discloses in, big cylinder electricity core both ends all are equipped with the annular groove, are located electricity core support inboard corresponds annular groove department is equipped with the assembly position of bone.

The utility model discloses in, both sides all are equipped with assembly buckle and assembly screens about the electric core support, the utensil in order to cooperate with another electric core support, the block installation is a holistic electric core support group.

The utility model discloses in, unit assembly hole site has all been seted up in electric core support four corners.

The utility model discloses in, the positive negative pole hole site of electric core has all been seted up at both ends about electric core assembly position, and the utensil is so that the positive negative pole of big cylinder electric core exposes.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model improves the stability of assembly by matching the vertically designed cell supports with the assembly bone positions and the clamping devices, and further can connect a plurality of cell supports into a whole through the unit assembly hole sites, thereby greatly reducing the development and design difficulty and correspondingly shortening and reducing the manufacturing time and cost; the battery assembly difficulty is reduced, and the reliability is improved; the flexibility of the assembly mode is increased, and the expandability is enhanced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is the utility model provides a pair of the overall structure of the assembly structure of large-scale cylinder electricity core.

1. A battery cell bracket; 11. assembling a battery cell; 12. assembling a bone position; 13. assembling a buckle; 14. assembling a clamping position; 15. a cell assembly hole site; 16. the hole positions of the positive electrode and the negative electrode of the battery core; 2. a large cylindrical electrical core; 21. an annular groove.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to explain the technical solution of the present invention, the following description is made by using specific examples.

Examples

Referring to fig. 1, an assembly structure of a large cylindrical battery cell provided in this embodiment includes:

an electricity core support group, electricity core support group are including two electric core supports 1 of mutually supporting, and electric core support 1 adopts vertical design, and is equipped with several electric core assembly position 11 on the electric core support 1, and electric core assembly position 11 is established to the semi-cylindrical, is equipped with big cylinder electricity core 2 in the electric core assembly position 11.

In this embodiment, 2 both ends of big cylinder electricity core all are equipped with annular groove 21, lie in that 1 inboard of electricity core support corresponds annular groove 21 department and is equipped with assembly position of bone 12, through locating 1 inboard assembly position of bone 12 of electricity core support and the assembly of the original annular groove 21 structure block of big cylinder electricity core 2, can make big cylinder electricity core 2 stably assemble in electricity core support group insidely, promote overall structure's ability such as antidetonation.

In this embodiment, both sides all are equipped with assembly buckle 13 and assembly screens 14 about electric core support 1, and the utensil is in order to cooperate with another electric core support 1, and the block installation is a holistic electric core support group.

In this embodiment, the cell support 1 has unit mounting holes 15 at four corners.

In this embodiment, positive and negative electrode holes 16 are formed in both the upper and lower ends of the cell assembling site 12, so as to expose the positive and negative electrodes of the large cylindrical cell 2.

In the embodiment, the battery cell support 1 which is longitudinally designed is matched with the assembly bone position 12, the assembly buckle 13 and the assembly clamping position 14, so that the assembly stability is improved, and furthermore, a plurality of battery cell support groups can be connected into a whole through the unit assembly hole positions 15, so that the development and design difficulty is greatly reduced, and the manufacturing time and the cost are correspondingly reduced; the battery assembly difficulty is reduced, and the reliability is improved; the flexibility of the assembly mode is increased, and the expandability is enhanced.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. The utility model provides an assembly structure of large-scale cylinder electricity core, a serial communication port, includes an electricity core support group, electricity core support group is including two electric core supports of mutually supporting, electricity core support adopts vertical design, just be equipped with several electricity core assembly position on the electricity core support, electricity core assembly position is established to the halfcylinder, be equipped with big cylinder electricity core in the electricity core assembly position.

2. The assembly structure of a large cylindrical battery cell according to claim 1, wherein two ends of the large cylindrical battery cell are provided with annular grooves, and assembly bone positions are provided at positions corresponding to the annular grooves and inside the battery cell support.

3. The assembly structure of a large cylindrical battery cell according to claim 1, wherein the upper and lower sides of the battery cell support are provided with an assembly buckle and an assembly clamp, so as to cooperate with another battery cell support and be clamped and mounted as a whole battery cell support group.

4. The assembly structure of a large cylindrical battery cell according to claim 1, wherein unit assembly holes are formed at four corners of the battery cell support.

5. The assembly structure of a large cylindrical electrical core according to claim 1, wherein positive and negative electrode holes are provided at both the upper and lower ends of the electrical core assembly site, so as to expose the positive and negative electrodes of the large cylindrical electrical core.