CN220138640U

CN220138640U - Battery terminal, battery module and battery pack

Info

Publication number: CN220138640U
Application number: CN202321428408.XU
Authority: CN
Inventors: 王正; 张广超; 侯敏; 曹辉
Original assignee: Shanghai Ruipu Energy Co Ltd; Rept Battero Energy Co Ltd
Current assignee: Shanghai Ruipu Energy Co Ltd; Rept Battero Energy Co Ltd
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2023-12-05
Anticipated expiration: 2033-06-06

Abstract

The utility model relates to the technical field of power battery manufacturing and discloses a battery terminal, a battery module and a battery pack, wherein the battery terminal, the battery module and the battery pack comprise a mounting part and a connecting part, the mounting part is of a strip-shaped plane plate structure, mounting holes penetrating through the mounting part up and down are formed in the mounting part, the mounting part is provided with a welding plane avoiding the mounting holes, and one end of the connecting part is connected with the mounting part and is used for being electrically connected with a lead. The beneficial effects of the utility model are as follows: the production efficiency of terminal and battery module is improved to effectively improve the reliability that the battery module gathered.

Description

Battery terminal, battery module and battery pack

Technical Field

The present utility model relates to the field of battery manufacturing technologies, and in particular, to a battery terminal, a battery module, and a battery pack.

Background

With the increasing social interest of new energy automobiles, especially electric automobiles, the battery pack is an important component of the electric automobiles, and the battery module is a core component of the battery pack.

In the use process of the battery module, information acquisition needs to be carried out on the battery module, and the acquisition modes include FPC, PCB, FFC, a wire harness and the like. Compared with the collection mode of the wire harness, FPC, PCB, FFC has the problems of long design period and high cost, particularly, FPC and PCB also have chemical pollution procedures in the manufacturing process, can generate pollutants, and is easy to cause environmental damage. The wire harness has the advantages of mature process, low cost, short design production period and the like, however, the wire harness in the prior art is difficult to realize automatic welding of the module battery cells, and the wire harness is more and more marginal in actual use. Therefore, a new battery terminal, a new battery module, and a new battery pack are needed to solve the above problems.

Disclosure of Invention

The utility model aims to provide a battery terminal, a battery module and a battery pack, so as to improve production efficiency and reliability.

The utility model aims at realizing the following technical scheme:

a battery terminal comprising: the installation department and connecting portion, the installation department is rectangular shape's flat panel structure to set up and link up from top to bottom the mounting hole of installation department, the installation department has dodges the welding plane that the mounting hole set up, the connecting portion is arc plate structure, its one end that extends along the arc with the tip of installation department links to each other, just the arc central angle of connecting portion is greater than 180.

In some embodiments of the present utility model, the number of the mounting holes is two, and the mounting holes are arranged on the mounting part at intervals.

In some embodiments of the utility model, the welding plane is located between two of the mounting holes.

In some embodiments of the present utility model, the connecting portion includes a first crimping portion and a second crimping portion, each of the first crimping portion and the second crimping portion is arc-shaped, and one end of the first crimping portion extending along the arc is connected to an end of the mounting portion, and one end of the second crimping portion extending along the arc is connected to an end of the mounting portion;

wherein the radius of the first crimping portion is smaller than the radius of the second crimping portion.

In some embodiments of the utility model, the mounting portion and the connecting portion are integrally formed.

In some embodiments of the utility model, the mounting portion and the connecting portion are both made of metal.

The battery module comprises the terminal, the fastener, the bus bar and the wire, wherein the fastener penetrates through the mounting hole to be connected with the bus bar, the welding plane is attached to the bus bar and is welded to the bus bar, and the wire penetrates through the connecting portion and is electrically connected with the first crimping portion.

In some embodiments of the present utility model, the conductive wire has a conductive layer and an insulating layer wrapped around the conductive layer, the conductive layer is electrically connected to the first crimp portion, and the insulating layer is fixedly connected to the second crimp portion.

In some embodiments of the utility model, the fastener is a plastic rivet.

A battery pack comprises the battery module and a battery management system, wherein the battery management system is electrically connected with the bus bar through the lead

According to the battery terminal, the battery module and the battery pack, the mounting part is provided with the mounting hole, the terminal and the busbar can be pre-fixed together in a mode that the fastener penetrates through the mounting hole, so that the positioning function is achieved, the terminal is conveniently welded on the busbar through the welding plane, the production efficiency is improved, the angle of the arc-shaped plate of the connecting part is larger than 180 degrees, the wires can be connected more stably, electric signals are transmitted, and the collection reliability of the battery module is effectively improved.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of a battery terminal of the present utility model;

fig. 2 is a schematic structural view of a first embodiment of a battery terminal of the present utility model;

fig. 3 is a schematic view of the structure of the battery module according to the present utility model;

fig. 4 is a cross-sectional view of a wire of the present utility model.

In the figure, 1, an installation part; 11. a mounting hole; 12. welding a plane; 2. a connection part; 21. a first crimping part; 22. a second crimping part; 3. a fastener; 4. a busbar; 5. a wire; 51. a conductive layer; 52. an insulating layer.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "top," "bottom," and the like as used herein indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus 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 relative importance.

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; can be mechanically or electrically connected; 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.

As shown in fig. 1 to 3, a first aspect of an embodiment of the present utility model proposes a battery terminal including: the installation department 1 and connecting portion 2, installation department 1 is rectangular planar plate structure to set up and link up from top to bottom installation hole 11 of installation department 1, installation department 1 has dodges the welded plane 12 that installation hole 11 set up, connecting portion 2 is the arc plate structure, its one end that extends along the arc with the tip of installation department 1 links to each other, just the arc central angle of connecting portion 2 is greater than 180.

Based on the technical scheme, the battery terminal, the battery module and the battery pack are provided with the mounting holes 11 on the mounting part 1, the terminal and the busbar 4 can be pre-fixed together by means of the fastener 3 penetrating through the mounting holes 11, so that the positioning function is achieved, the terminal is conveniently and subsequently welded on the busbar 4 through the welding plane 12, the production efficiency is improved, the angle of the arc-shaped plate of the connecting part 2 is larger than 180 degrees, and therefore the lead wires 5 can be connected more stably, electric signals are transmitted, and the collection reliability of the battery module is effectively improved. Preferably, the mounting part 1 is square, simple in structure and low in manufacturing cost. The mounting portion 1 and the connection portion 2 each have conductive properties to form a circuit connection. Preferably, the connection part 2 extends from the end connected to the mounting part 1 to a position where the mounting part 1 is close to the connection part 2, thereby forming a space having only two sides open, so that the crimping of the wire 5 is more stable and reliable.

In some embodiments of the present utility model, as shown in fig. 2, the number of the mounting holes 11 is two, and the mounting holes are spaced apart from the mounting portion 1. The two mounting holes 11 can be respectively pre-fixed, so that the terminal can be more effectively prevented from rotating, welding failure caused by deflection of the terminal in the production process is prevented, and the yield is improved.

Specifically, as shown in fig. 2, the welding plane 12 is located between the two mounting holes 11. The area between the two mounting holes 11 is more stable, and the welding can be more reliable by taking the plane between the two as the welding plane 12.

In some embodiments of the present utility model, as shown in fig. 1 to 3, the connection part 2 includes a first crimp part 21 and a second crimp part 22, the first crimp part 21 and the second crimp part 22 are both arc-shaped, one end of the first crimp part 21 extending along the arc is connected to the end of the mounting part 1, and one end of the second crimp part 22 extending along the arc is connected to the end of the mounting part 1; wherein the radius of the first crimp portion 21 is smaller than the radius of the second crimp portion 22. Two crimping portions are used for connecting the wire 5, the difference lies in that the wire 5 generally includes middle conducting layer and the insulating layer of parcel in the conducting layer periphery, and middle conducting layer needs to be connected with connecting portion 2 electricity as the conductor, and in order to fix wire 5 simultaneously, avoid conducting layer vibration buckling and then fracture, still need fix wire 5, just can press from both sides conducting layer and the less first crimping portion 21 of radius this moment to press from both sides the insulating layer of parcel conducting layer and the bigger second crimping portion 22 of radius, can realize the electricity of wire 5 and connecting portion 2 and be connected, fixed wire 5 position that again can be stable promotes the reliability of connection. In another embodiment, the conductive layer of the wire 5 may be soldered to the first crimp portion 21, which also enables an electrical connection.

In some embodiments of the present utility model, as shown in fig. 1 to 3, the mounting portion 1 and the connecting portion 2 are integrally formed. The integrated forming part is convenient to process, low in cost and capable of further improving production efficiency.

In some embodiments of the present utility model, the mounting portion 1 and the connecting portion 2 are both made of metal. The metal material has better strength, ductility and the like, has good electric conductivity, and is very suitable for being used as a material of a terminal.

As shown in fig. 3, a second aspect of the embodiment of the present utility model proposes a battery module, including the terminal, the fastener 3, the bus bar 4 and the wire 5, wherein the fastener 3 passes through the mounting hole 11 to connect the bus bar 4, the welding plane 12 is attached to the bus bar 4 and welded to the bus bar 4, and the wire 5 passes through the connection portion 2 and is electrically connected to the first press-connection portion 21. The fastener 3 realizes the location of terminal and busbar 4, and terminal and busbar 4 welded connection are in order to realize structural connection and electrical connection, and wire 5 is connected terminal and other electrical components to realize the transmission of signal of telecommunication.

In some embodiments of the present utility model, as shown in fig. 3 and 4, the conductive wire 5 has a conductive layer 51 and an insulating layer 52 wrapped around the conductive layer 51, the conductive layer 51 is electrically connected to the first crimp portion 21, and the insulating layer 52 is fixedly connected to the second crimp portion 22. The insulating layer 52 wraps the periphery of the conductive layer 51, so that the diameter of the conductive layer 51 is smaller than that of the insulating layer 52, and therefore, the conductive layer 51 and the insulating layer 52 are fixedly connected with the first pressure-welding part 21 with the small diameter and the second pressure-welding part 22 with the large diameter respectively, fixation of the lead 5 can be better achieved, and reliability of the structure is improved.

In some embodiments of the utility model, as shown in fig. 3, the fastener 3 is a plastic rivet. The plastic material is lighter than metal, is favorable to the lightweight of battery module to plastics are nonconductive, can promote the security when the installation.

A third aspect of the embodiment of the present utility model provides a battery pack, including the battery module and the battery management system as described above, where the battery management system is electrically connected to the bus bar 4 through the conductive wires 5, so as to achieve reliable electrical connection, and transmit the electrical signal of the battery module to the battery management system.

In summary, the battery terminal, the battery module and the battery pack are provided with the mounting hole 11 on the mounting part 1, the terminal and the busbar 4 can be pre-fixed together by using the mode that the fastener 3 passes through the mounting hole 11, the positioning function is realized, the terminal is conveniently and subsequently welded on the busbar 4 through the welding plane 12, the production efficiency is improved, the angle of the arc-shaped plate of the connecting part 2 is more than 180 degrees, and therefore, the lead 5 can be connected more stably, the transmission of electric signals is realized, and the acquisition reliability of the battery module is effectively improved.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims

1. A battery terminal, comprising: installation department (1) and connecting portion (2), installation department (1) are rectangular planar plate structure to set up link up from top to bottom installation hole (11) of installation department (1), installation department (1) have dodges welding plane (12) that installation hole (11) set up, the one end of connecting portion (2) with installation department (1) links to each other, and it is used for being connected with wire (5) electricity.

2. The battery terminal according to claim 1, wherein the connecting portion (2) has an arc-shaped plate structure, and one end thereof extending in an arc shape is connected to an end of the mounting portion (1).

3. Battery terminal according to claim 2, characterized in that the arc-shaped central angle of the connecting portion (2) is greater than 180 °.

4. The battery terminal according to claim 1, wherein the number of the mounting holes (11) is two and is provided at intervals on the mounting portion (1).

5. Battery terminal according to claim 4, characterized in that the welding plane (12) is located between two of the mounting holes (11).

6. The battery terminal according to claim 1, wherein the connecting portion (2) includes a first crimp portion (21) and a second crimp portion (22), one end of the first crimp portion (21) being connected to an end of the mounting portion (1), one end of the second crimp portion (22) being connected to an end of the mounting portion (1);

wherein the cross-sectional area of the first crimp portion (21) is smaller than the cross-sectional area of the second crimp portion (22).

7. A battery module, characterized by comprising the battery terminal according to any one of claims 1-6, further comprising a fastener (3), a busbar (4) and a wire (5), wherein the fastener (3) passes through the mounting hole (11) to connect the busbar (4), the welding plane (12) is attached to the busbar (4) and welded to the busbar (4), and the wire (5) passes through the connecting portion (2) and is electrically connected with the connecting portion (2).

8. The battery module according to claim 7, wherein the lead (5) has a conductive layer (51) and an insulating layer (52) wrapped around the conductive layer (51), the conductive layer (51) and the insulating layer (52) are both connected with the connecting portion (2), and the conductive layer (51) is electrically connected with the connecting portion (2), and a cross-sectional area of a connection portion of the connecting portion (2) and the conductive layer (51) is smaller than a cross-sectional area of a connection portion of the connecting portion (2) and the insulating layer (52).

9. The battery module according to claim 7, wherein the fastener (3) is a plastic rivet.

10. Battery pack, characterized in that it comprises a battery module according to any of claims 7-9, and a battery management system, which is electrically connected to the busbar (4) by means of the wires (5).