CN107863480A - Conducting strip and battery component with contact - Google Patents

Abstract

The invention relates to a conductive sheet with contacts, which includes a sheet body and a connecting portion formed by bending from the edge of the sheet body to one side, and the sheet body has a plurality of protrusions protruding from its surface. contacts. A battery assembly, including a plurality of battery cells, the battery cells include a core body, conductive sheets electrically connected to the two poles of the core body, the conductive sheet is the contactor The conductive sheet at the point is conductively connected between two adjacent battery cells through the contact of the conductive sheet. The present invention realizes the direct conductive connection between two battery cells by setting contacts on the conductive sheet, which can greatly shorten the current path between the battery cells, thereby reducing the heat generation of the battery cells and reducing the heat generation of the entire battery assembly , simple in structure, good in use effect and low in cost.

Description

Conductive sheet with contacts and battery assembly

technical field

The invention relates to the technical field of new energy batteries, in particular to a conductive sheet with contacts and a battery assembly.

Background technique

As we all know, after generating electricity from petroleum and using batteries to store energy to drive cars, the energy consumed is about 1/4 of the direct use of fuel. At the same time, with the rise of the concept of environmental protection, various new energy vehicles are currently developing more actively. At present, in order to pursue higher energy density, most manufacturers use lithium batteries for commonly used vehicle batteries. Lithium batteries are connected in series by multiple battery cells, and the current between the battery cells is drawn out through the conductive sheet and then flows to the upper or lower part to achieve conduction, so that the current flow path is relatively long, and the current The flow will inevitably generate heat, which will cause the battery unit to heat up, and the battery will gather the heat of all the battery units. When the battery temperature is too high, it is prone to damage and the core body catches fire, causing safety hazards.

Contents of the invention

An object of the present invention is to provide a conductive sheet with contacts.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A conductive sheet with contacts includes a sheet body and a connecting portion formed by bending from the edge of the sheet body to one side, and the sheet body has a plurality of contacts protruding from its surface.

Preferably, one end of the contact is connected to the surface of the chip body, and the other end is a free end.

Preferably, the contacts are integrally formed with the chip body.

Preferably, the chip body also has a plurality of conductive contact parts, and the conductive contact parts are integrally formed on the surface of the chip body.

Preferably, at least the contacts are elastic metal sheets, including beryllium copper and nickel sheets.

Another object of the present invention is to provide a battery pack.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A battery assembly, including a plurality of battery cells, the battery cells include a core body, conductive sheets electrically connected to the two poles of the core body, the conductive sheet is the contactor The conductive sheet at the point is conductively connected between two adjacent electric core units through the contact of the conductive sheet.

Preferably, the battery cell unit further includes a core support, the core is arranged in the core support and forms a positive electrode surface on one side of the core support, and a negative electrode surface on the other side , the conductive sheet is respectively connected to the positive surface and the negative surface of the core support through the connecting portion.

Further preferably, the core support includes a first core support forming the positive surface, a second core support forming the negative surface, the first core support, the second core support One of the brackets is provided with a buckle, and the other is provided with a slot, and the first core bracket and the second core bracket are connected into one body through the buckle and the slot.

Further preferably, a handle is provided on the top of the core support.

Further preferably, a wire groove is provided on the top of the core support.

Due to the use of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art:

The present invention realizes the direct conductive connection between two battery cells by setting contacts on the conductive sheet, which can greatly shorten the current path between the battery cells, thereby reducing the heat generation of the battery cells and reducing the heat generation of the entire battery assembly , simple in structure, good in use effect and low in cost.

Description of drawings

Accompanying drawing 1 is the structural representation of battery assembly among the present invention;

Accompanying drawing 2 is the split schematic diagram of battery pack in the present invention;

Accompanying drawing 3 is the schematic structural diagram of the conductive sheet in the present invention.

Among them: 1. battery cell unit; 10. core body support; 10a, first core body support; 10b, second core body support; 100, positioning hole; 101, wire groove; 102, handle part; 103, buckle ; 104, card slot; 105, connection slot; 11, core body; 12, conductive sheet; 120, sheet body; 121, connection part;

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing and embodiment:

As shown in Figures 1 and 2, a battery assembly includes a plurality of battery cells 1, and each battery cell 1 includes a core support 10, a core 11 arranged in the core support 10, and connected to the core support 10. Conductive strips 12 electrically connected to the two poles of the core body 11 respectively.

In this embodiment: the core support 10 is provided with a positioning hole 100, the core 11 is fixed in the positioning hole 100, and a positive electrode surface is formed on one side of the core support 10, and a negative electrode surface is formed on the other side. The positive electrode surface and the negative electrode surface of 10 are respectively connected with conductive sheets 12 . The top of the core support 10 is provided with a wire groove 101, which allows the wire to pass through the wire groove 101. The wire groove 101 is located in the middle of the top of the core support 10, so that the core support 10 is divided into left and right parts. The left and right positive electrode surfaces, the left and right negative electrode surfaces, the left and right positive electrode surfaces, and the left and right negative electrode surfaces are respectively connected with conductive sheets 12 , that is, one cell unit 1 is connected with four conductive sheets 12 . In addition, a handle portion 102 is provided on the top of the core support 10 , and there are two handles 102 respectively located on both sides of the top of the core support 10 , so as to facilitate the taking of the battery unit 1 .

In this embodiment: the core support 10 includes a first core support 10a forming a positive surface and a second core support 10b forming a negative surface, that is, the core support 10 passes through the first core support 10a, the second core support The bracket 10b is assembled, one of the first core bracket 10a and the second core bracket 10b is provided with a buckle 103, and the other is provided with a slot 104, and the first core bracket 10a and the second core bracket 10b pass through The buckle 103 and the slot 104 are assembled into one body, so that the two can be assembled directly through a clamping manner, without first opening screw holes, and then connecting with screws.

As shown in Figure 3: In this embodiment: the conductive sheet 12 is a conductive sheet with contacts 122, specifically: the conductive sheet 12 includes a sheet body 120, which is formed by bending from the upper edge of the sheet body 120 to one side. The connecting part 121 has a connecting groove 105 matching the connecting part 121 on the top of the core support 10, the connecting part 121 of the conductive sheet 12 is fixed in the connecting groove 105 of the core support 10, and the conductive sheet between the cell units 1 The connection part 121 of 12 can realize the conduction between the battery cells 1 by connecting the conductive plate.

The sheet body 120 has a plurality of contacts 122 protruding from its surface, the contacts 122 are integrally formed with the sheet body 120, and one end of the contact 122 is connected on the surface of the sheet body 120, and the other end is a free end, correspondingly Direct conduction can be realized between two adjacent cell units 1 through contact 122 on the conductive sheet 12 with the contacts 122 , thereby shortening the conductive path and reducing the heat generated by the cell units 1 . The sheet body 120 also has a plurality of conductive contact portions 123 integrally formed on the surface of the sheet body 120 , and the conductive sheet 12 conducts electricity with the two poles of the core 11 through the conductive contact portions 123 .

The conductive sheet 12 is an elastic metal sheet, such as beryllium copper, nickel sheet, etc., and the contact 122 and the conductive contact portion 123 can also be beryllium copper, nickel sheet, etc.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. A conductive sheet with contacts, comprising a sheet body and a connecting portion formed by bending from the edge of the sheet body to one side, characterized in that: the sheet body has a plurality of protrusions contacts on its surface. 2. The conductive sheet with contacts according to claim 1, wherein one end of the contact is connected to the surface of the sheet body, and the other end is a free end. 3. The conductive sheet with contacts according to claim 1, characterized in that: said contacts are integrally formed with said sheet body. 4. The conductive sheet with contacts according to claim 1, characterized in that: the sheet body also has a plurality of conductive contact parts, and the conductive contact parts are integrally formed on the sheet body On the surface. 5. The conductive sheet with contacts according to claim 1, characterized in that at least the contacts are made of elastic metal sheets, including beryllium copper and nickel sheets. 6. A battery assembly, comprising a plurality of battery cells, the battery cells comprising a core body, conductive sheets electrically connected to the two poles of the core body respectively, characterized in that: the conductive sheets are The conductive sheet with contacts according to any one of claims 1 to 5, wherein two adjacent battery cells are electrically connected through the contacts of the conductive sheet. 7. The battery assembly according to claim 6, wherein the battery unit further comprises a core support, and the core is arranged in the core support and in the core support One side forms the positive electrode surface, and the other side forms the negative electrode surface, and the conductive sheet is respectively connected to the positive electrode surface and the negative electrode surface of the core support through the connecting portion. 8. The battery assembly according to claim 7, wherein the core support includes a first core support forming the positive surface and a second core support forming the negative surface, the One of the first core bracket and the second core bracket is provided with a buckle, and the other is provided with a slot. The slots are connected in one piece. 9. The battery assembly according to claim 7, wherein a handle portion is provided on the top of the core support. 10. The battery assembly according to claim 7, characterized in that: a wire groove is arranged on the top of the core support.