CN215418456U

CN215418456U - Mutual-fastening type battery module

Info

Publication number: CN215418456U
Application number: CN202120816319.7U
Authority: CN
Inventors: 王钦; 曹峰峰; 龚木红
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2022-01-04
Anticipated expiration: 2031-04-20

Abstract

An inter-button battery module includes: electric core and two each other detain the support. Bending foot seats are arranged at two ends of the mutually buckled support, the two bending foot seats are bent towards the same direction, and each bending foot seat is used for being abutted against the outer wall of the battery cell; two are buckled support symmetry each other and are set up, and adjacent foot stool looks butt of bending in order enclosing into the casing, and electric core holding is in the casing. The two mutually buckled supports are combined to replace an original structure with matched end plates and side plates so as to fix the battery cell, and the bending foot seats on the mutually buckled supports can be used for positioning the battery cell, so that the steps of positioning the battery cell, attaching the end plates and the side plates and welding the end plates and the side plates by using a tool clamp are saved, the assembly step of the battery module is optimized, and the assembly efficiency of the battery module is improved; the number of parts on the battery module shell is reduced, the die sinking cost and the material consumption are saved, and the production and processing cost of the battery module is reduced.

Description

Mutual-fastening type battery module

Technical Field

The utility model relates to the technical field of batteries, in particular to an interlocking type battery module.

Background

A plurality of electric cores in the battery module are fixed in the shell. The outer casing of the battery module is formed by welding end plates and side plates, as disclosed in patent No. 201922290453.3, and the disclosed battery module comprises a battery core set, a first end plate, a second end plate, a first side plate and a second side plate, wherein the two end plates and the two side plates are connected by rivets or welding to form the outer casing of the battery. The connecting parts of the end plate and the side plate are required to be welded and fixed, and before the end plate and the side plate are assembled, a tool clamp is required to be used for positioning the battery cell, so that more materials need to be moved in the assembling process, the steps are complicated, and the shell processing cost is increased.

In order to simplify the production process of the battery module and improve the processing efficiency of the battery module, it is necessary to optimize the structure of the housing of the conventional battery module.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides the mutual-buckled battery module which has few components, is convenient to assemble and has a stable structure.

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

an inter-button cell module comprising: the battery cell and the two mutually buckled brackets;

bending foot seats are arranged at two ends of the mutually buckled support, the two bending foot seats are bent towards the same direction, and each bending foot seat is used for being abutted against the outer wall of the battery cell;

the two mutually-buckled supports are symmetrically arranged, the adjacent bending foot seats are abutted to form a shell in a surrounding mode, and the battery cell is contained in the shell.

In one embodiment, the cross section of the mutually buckled bracket is U-shaped.

In one embodiment, each of the interlocking brackets is provided with two abutting parts, the two abutting parts are correspondingly located at the ends of the two bending foot seats, each abutting part extends in a direction away from the center of the interlocking bracket, and the abutting parts on the adjacent bending foot seats abut against each other.

In one embodiment, the abutting parts are provided with mounting holes, and the mounting holes on the two corresponding abutting parts are aligned.

In one embodiment, the mutually buckled support is provided with a plurality of reinforcing ribs, the reinforcing ribs are respectively connected with the butting part and the bending foot seats, and the number of the reinforcing ribs is multiple.

In one embodiment, the reinforcing rib is provided with a fixing hole, and the fixing hole is matched with a screw to fix the reinforcing rib.

In one embodiment, a positioning blocking piece is arranged on the edge of the mutually buckled support, the positioning blocking piece and the bending foot seat form a positioning cavity together in an enclosing mode, and the battery cell is partially embedded in the positioning cavity.

In one embodiment, the positioning baffle is shorter than the bending foot seat.

In one embodiment, the length of the bending footstand is half of the width of the battery cell.

In one embodiment, a teflon insulating layer is arranged at a contact part of the mutually buckled support and the battery core.

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

1. the two mutually buckled supports are combined to replace an original structure with matched end plates and side plates so as to fix the battery cell, and the bending foot seats on the mutually buckled supports can be used for positioning the battery cell, so that the steps of positioning the battery cell, attaching the end plates and the side plates and welding the end plates and the side plates by using a tool clamp are saved, the assembly step of the battery module is optimized, and the assembly efficiency of the battery module is improved;

2. the number of parts on the battery module shell is reduced, the die sinking cost and the material consumption are saved, and the production and processing cost of the battery module is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed 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 view of an inter-button cell module;

fig. 2 is a schematic view of an exploded structure of a module of an inter-cell type battery.

Reference numerals:

each other button type battery module 10, electric core 100, single electric core 110, each other button type bracket 200, bending foot seat 210, butt joint part 220, mounting hole 221, reinforcing rib 230, fixing hole 231, positioning baffle 240

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This 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 utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. 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 inter-button cell module 10 includes: electric core 100 and two each other detain support 200, adopt two each other to detain support 200 cooperation and replace fixed electric core 100 of the mode of end plate and curb plate combination, when guaranteeing battery module 10 stable in structure, simplified battery module 10's packaging efficiency to the cost of manufacture of battery module 10 has been reduced.

Referring to fig. 2, in the present application, a battery cell 100 is formed by sequentially stacking a plurality of battery cells 110. In original scheme promptly, need earlier locate a plurality of monomer electric cores 110 on frock clamp, provide the position that holding power kept each monomer electric core 110 through frock clamp, attached in electric core 100's the outside with end plate, curb plate again, implement to take off from frock clamp fixed module will be accomplished after the welding.

Referring to fig. 1 and fig. 2, two ends of the inter-buckling bracket 200 are provided with two bending foot mounts 210, and the two bending foot mounts 210 are bent towards the same direction, and each bending foot mount 210 is used for abutting against the outer wall of the battery cell 100; between two bending foot mounts 210 on same each other detain support 200 promptly for electric core 100 hold the interval, one of them bending foot mount 210 and first monomer electric core 110's outer wall butt, another bending foot mount 210 and the outer wall butt that is located the monomer electric core 110 of terminal position department, so, two bending foot mounts 210 exert clamping-force to electric core 100, and then provide the location to electric core 100.

The two mutually buckled supports 200 are symmetrically arranged, that is, the bending footstands 210 on the two mutually buckled supports 200 are oppositely arranged, the two adjacent bending footstands 210 are connected in a butting manner to form a shell, and the battery cell 100 is accommodated in the shell.

The two adjacent bending foot seats 210 refer to the bending foot seats 210 on the same side of the two mutually buckled supports 200, when the two mutually buckled supports 200 are buckled, the adjacent bending foot seats 210 are abutted and form a shell in a shape like a Chinese character 'kou', and the central position of the shell is the setting position of the battery cell 100.

The battery cell 100 is fixed by replacing 2 end plates and 2 side plates with two mutually buckled supports 200, so that the assembly steps of the battery module 10 are saved, and the assembly efficiency of the battery module is improved.

Referring to fig. 2, in one embodiment, the cross-section of the buckling bracket 200 is "U" shaped. That is, the interlocking bracket 200 and the bending bases 210 at both ends thereof form a U-shaped structure, thereby improving the structural stability of the interlocking bracket 200.

Referring to fig. 2, in an embodiment, the contact area of the bending bases 210 on the two interlocking brackets 200 is increased by disposing the abutting portion 220, so that the two interlocking brackets 200 are connected by riveting, welding or disposing a buckle structure, thereby facilitating the assembly and disassembly of the interlocking brackets 200.

For example, the docking portions 220 are formed with mounting holes 221, and the mounting holes 221 of two corresponding docking portions 220 are aligned to connect two interlocking brackets 200. Thus, the screw can be inserted into the mounting hole 221, and the two brackets 200 can be connected to each other by fastening the screw with a nut and connecting the two brackets with each other by a bolt.

In one embodiment, the interlocking bracket 200 is provided with a plurality of reinforcing ribs 230, the reinforcing ribs 230 are respectively connected to the abutting portion 220 and the bending bases 210, and the reinforcing ribs 230 are provided. The reinforcing ribs 230 increase the structural strength of the butting part 220, and the reinforcing ribs 230 can be arranged in a plurality of numbers, so that the mutual button cell module 10 can be fixed, fixing holes 231 can be formed in the reinforcing ribs 230, and the fixing holes 231 are matched with screws to fix the reinforcing ribs 230, namely, the reinforcing ribs 230 are locked at the installation positions through the screws.

In an embodiment, the extending direction of the positioning blocking piece 240 is perpendicular to the extending direction of the bending foot bases 210, when the battery cell 100 is embedded into the positioning cavity 11, the two bending foot bases 210 on the mutual buckling supports 200 can apply clamping force to two opposite sides of the battery cell 100 to position, the two mutual buckling supports 200 cooperate to limit the degree of freedom in the horizontal direction of the battery cell 100, and at this time, the positioning blocking piece 240 provides support with the top (the surface where the tab is located) or the bottom of the battery cell to limit the longitudinal degree of freedom of the battery cell 100.

In an embodiment, two positioning blocking pieces 240 are provided, and the two positioning blocking pieces 240 are respectively abutted against the top and the bottom of the battery core.

Referring to fig. 1 and fig. 2, the positioning block 240 is shorter than the bending base 210. Namely, after the two mutually buckled supports 200 are buckled, the bending foot seats 210 on the two mutually buckled supports 200 are abutted, and at the moment, a space exists between the positioning blocking pieces 240 on the two mutually buckled supports 200, namely, the positioning blocking pieces 240 are only contacted with the edge positions of the top and the bottom of the battery cell 240 at the moment. For example, the length of the bending foot base 210 is half of the width of the battery cell 100.

In an embodiment, a teflon insulating layer is disposed at a contact portion of the inter-buckling bracket 200 and the battery cell 100. So, detain each other the support 200 body and can adopt the metal material to make like SPCC, SUS etc. its inside teflon insulating layer guarantees to detain each other the support 200 can not take place the safety problem of short circuit with the utmost point ear contact of electric core 10.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An inter-button cell module, comprising: the battery cell and the two mutually buckled brackets;

2. The module of claim 1, wherein the cross-section of the bracket is "U" shaped.

3. The battery module of claim 2, wherein each of the brackets has two mating portions at the ends of the two legs, each of the mating portions extends away from the center of the bracket, and the mating portions of adjacent legs abut against each other.

4. The module according to claim 3, wherein the mating portions have mounting holes, and the mounting holes of two corresponding mating portions are aligned.

5. The battery module of claim 3, wherein the support frame is provided with a plurality of ribs, the ribs are connected to the mating portions and the bending bases, respectively.

6. The module according to claim 5, wherein the ribs have fastening holes for fastening the ribs with screws.

7. The mutually buckled battery module according to any one of claims 1 to 6, wherein a positioning baffle is arranged on an edge of the mutually buckled support, the positioning baffle and the bending foot seat together enclose a positioning cavity, and the battery core is partially embedded in the positioning cavity.

8. The module of claim 7, wherein the positioning tabs are shorter than the bending legs.

9. The module of any one of claims 1 to 6, wherein the length of the bending foot base is half of the width of the cell.

10. The button cell module according to any one of claims 1 to 6, wherein a Teflon insulating layer is disposed on the button support at a position where the button support contacts the cell.