CN211376788U

CN211376788U - Connecting terminal and battery pack

Info

Publication number: CN211376788U
Application number: CN202020265948.0U
Authority: CN
Inventors: 黄磊; 严安
Original assignee: Globe Jiangsu Co Ltd
Current assignee: Globe Jiangsu Co Ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-08-28
Anticipated expiration: 2030-03-06

Abstract

The utility model provides a connecting terminal and have this connecting terminal's battery package, connecting terminal, include: the contact part is electrically connected with the electrodes of the battery cells so as to enable the battery cells to be connected in series or in parallel; the pin part is formed by extending outwards from the side edge of the contact part and comprises an extension arm and a connecting arm for connecting the extension arm and the contact part; the included angle between the extension arm and the lateral margin is an acute angle. Compared with the prior art, the utility model discloses connecting terminal's structural configuration is reasonable, makes the rectangle area that connecting terminal occupied is less, and then makes the space between the adjacent connecting terminal on the panel beating composing graph less, and then has effectively saved the material, has promoted the utilization ratio of material to manufacturing cost has been reduced.

Description

Connecting terminal and battery pack

Technical Field

The utility model relates to a connecting terminal and have this connecting terminal's battery package.

Background

The battery pack is generally composed of a plurality of battery cells, connecting terminals connected in series or in parallel between the battery cells and a circuit board, wherein the circuit board is provided with a charging voltage detection circuit and a discharging voltage detection circuit so as to acquire the voltage state of the battery cells in real time and facilitate the circuit board to monitor the battery cells.

Fig. 1 shows a conventional connection terminal 10 'including a contact portion 11' electrically connected to an electrode of a cell and a lead portion 12 'extending outward from the contact portion 11' and connected to a circuit board. Fig. 2 is a sheet metal layout 100 'for manufacturing the connection terminal 10' shown in fig. 1. Since the lead portion 12 ' extends outward perpendicular to the contact portion 11 ', the section line portion 13 ' in the metal plate layout 100 ' becomes waste, and thus the material utilization rate is reduced, and the production cost of the connection terminal 10 ' is increased.

Fig. 3 shows another conventional connection terminal 20 'including a contact portion 21' electrically connected to an electrode of a battery cell and a lead portion 22 'extending from the contact portion 21' and connected to a circuit board. Fig. 4 is a sheet metal layout 200 'for manufacturing the connection terminal 20' shown in fig. 3. Since the lead portions 22 'extend outward perpendicularly to the contact portions 11', the hatching portions 23 'in the sheet metal layout 200' become scrap, and the material utilization rate is reduced.

In view of the above problems, it is necessary to provide a new connection terminal to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a connecting terminal and have this connecting terminal's battery package, this connecting terminal's structural layout is reasonable, has promoted material utilization to manufacturing cost has been reduced.

In order to achieve the above object, the present invention provides a connecting terminal, its flat structure of exhibition includes: the contact part is electrically connected with the electrodes of the battery cells so as to enable the battery cells to be connected in series or in parallel; the pin part is formed by extending outwards from the side edge of the contact part and comprises an extension arm and a connecting arm for connecting the extension arm and the contact part; the included angle between the extension arm and the lateral edge is an acute angle; when the connection terminal is used, the lead part is bent so that the extension arm is perpendicular to the side edge.

As a further improvement of the invention, the extension arm is parallel to the lateral edge.

As a further improvement of the present invention, the connecting arm and the extending arm are provided with a pre-folding portion therebetween.

As a further improvement of the utility model, the connecting arm is L-shaped.

As a further improvement of the present invention, the contact portion includes at least two contact units electrically connected to the electrodes of the battery cell, and the adjacent contact units are electrically connected to each other.

As a further improvement of the present invention, the contact unit is provided with at least one contact.

As a further improvement of the present invention, the contact portion includes four contact units, and the four contact units jointly constitute a square.

As a further improvement of the present invention, the contact portion includes a long side and a short side; the side edges are located at the long sides.

A connection terminal, comprising: the contact part is electrically connected with the electrodes of the battery cells so as to enable the battery cells to be connected in series or in parallel; the pin part is formed by extending outwards from one side of the contact part and comprises an extension arm and a connecting arm for connecting the extension arm and the contact part; the connecting arm is provided with at least one bent part so that the long edge of the extension arm is tightly attached to the contact part.

A battery pack comprises a plurality of battery cells, a circuit board and the connecting terminals; the contact part of the connecting terminal is electrically connected with the electrode of the battery cell so as to enable the battery cells to be connected in series or in parallel; and the pin part of the connecting terminal is connected with the circuit board, so that the circuit board detects the voltage of the battery cell.

The utility model has the advantages that: the utility model discloses connecting terminal's structural configuration is reasonable, has promoted material utilization to manufacturing cost has been reduced.

Drawings

Fig. 1 is a schematic structural view of a conventional connection terminal.

Fig. 2 is a sheet metal layout of the connection terminal shown in fig. 1.

Fig. 3 is a schematic structural view of another conventional connection terminal.

Fig. 4 is a sheet metal layout of the connection terminal shown in fig. 3.

Fig. 5 is a schematic diagram illustrating flattening of a connection terminal according to a first embodiment of the present invention.

Fig. 6 is a schematic diagram of a completed product of the connection terminal shown in fig. 5.

Fig. 7 is a sheet metal layout of the connection terminal shown in fig. 5.

Fig. 8 is a schematic diagram illustrating flattening of a connection terminal according to a second embodiment of the present invention.

Fig. 9 is a schematic diagram of a completed product of the connection terminal shown in fig. 8.

Fig. 10 is a sheet metal layout of the connection terminal shown in fig. 8.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 5, the present invention discloses a connection terminal 100, which includes a contact portion 10 and a lead portion 20 extending from a side edge of the contact portion 10. The contact portion 10 is used to electrically connect with electrodes of the cells, so that the cells are connected in series or in parallel. The contact portion 10 includes at least one contact unit 11 electrically connected to an electrode of the battery cell, and the contact unit 11 is provided with at least one contact 111. The contact 111 is used to abut against the electrode of the battery cell, or the contact 111 is welded on the electrode of the battery cell. In this embodiment, the number of the contact units 11 is 2, and the two are electrically connected; the number of the contacts 111 is 4, and they together form a square. The contact portion 10 has a long side 101 and a short side 102, the side edges being located on the long side 101.

Referring to fig. 5, the lead portion 20 includes an extension arm 21 electrically connected to the circuit board and a connection arm 22 connecting the extension arm 21 and the contact portion 10. The angle α between the extension arm 21 and the side edge of the contact portion 10 is acute, i.e.: the angle α between the extension arm 21 and the long side 101 is an acute angle. Preferably, the angle α is zero degrees, i.e.: the extension arm 21 is parallel to the long side 101. The connecting arm 22 is L-shaped. A pre-folding part 221 is further disposed between the connecting arm 22 and the extension arm 21. When the connection terminal 100 is used, the extension arm 21 is bent along the pre-folding portion 221, thereby obtaining the finished product shown in fig. 6.

Fig. 7 shows a sheet metal layout for manufacturing the connection terminal 100. Because extension arm 21 with long limit 101 sets up relatively, thereby makes the rectangle area that connecting terminal 100 occupied is less, and then makes the space between the adjacent connecting terminal 100 on the panel beating composing graph very little, and then has effectively saved the material, has promoted the rate of utilization of material, has reduced manufacturing cost.

Fig. 8 shows a connection terminal 200 according to another embodiment of the present invention, which includes a contact portion 30 and a lead portion 40 extending from one side of the contact portion 30. The contact portion 30 is used to electrically connect with the electrodes of the cells, so that the cells are connected in series or in parallel. The contact portion 30 includes at least one contact unit 31 electrically connected to an electrode of the battery cell, and the contact unit 31 is provided with at least one contact 311. In this embodiment, the number of the contact units 31 is 4, and the contact units 31 form a square together, and the adjacent contact units 31 are electrically connected; the number of the contacts 311 is 4, and they together form a square.

Referring to fig. 8, the lead portion 40 includes an extension arm 41 and a connection arm 42 connecting the extension arm 41 and the contact portion 30. The extension arm 41 has a longer long side 411 and a shorter short side 412. The connecting arm 42 has at least one bent portion 421 so that the long side 411 of the extending arm 41 is closely attached to the contact portion 30, thereby reducing the gap between the extending arm 41 and the contact portion 30. Due to the arrangement, the rectangular area occupied by the connecting terminal 200 is small, and metal plate typesetting is facilitated. A pre-folding portion 422 is further disposed between the connecting arm 42 and the extension arm 41. When the connection terminal 100 is used, the extension arm 41 is bent along the pre-folded portion 422, thereby obtaining a finished product shown in fig. 9.

Fig. 10 shows a sheet metal layout for manufacturing the connection terminal 200. Because the long limit 411 of extension arm 41 hugs closely contact site 30, thereby makes the rectangle area that connecting terminal 200 occupied is less, and then makes the space between the adjacent connecting terminal 200 on the panel beating composing graph very little, and then has effectively saved the material, has promoted the rate of utilization of material, has reduced manufacturing cost.

The utility model also discloses a battery package, including a plurality of electric cores, circuit board and connecting

terminal

100 or 200.

Compared with the prior art, the utility model discloses connecting

terminal

100, 200's structural layout is reasonable, makes the rectangle area that connecting

terminal

100, 200 occupied is less, and then makes the space between the adjacent connecting terminal on the panel beating composing graph less, and then has effectively saved the material, has promoted the utilization ratio of material to manufacturing cost has been reduced.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A connecting terminal, characterized in that its flattening structure comprises:

the contact part is electrically connected with the electrode of the battery cell; and

the pin part is formed by extending outwards from the side edge of the contact part and comprises an extension arm and a connecting arm for connecting the extension arm and the contact part; the included angle between the extension arm and the lateral edge is an acute angle;

when the connection terminal is used, the lead part is bent so that the extension arm is perpendicular to the side edge.

2. A connection terminal according to claim 1, characterized in that: the extension arm is parallel to the side edge.

3. A connection terminal according to claim 1, characterized in that: a pre-folding part is arranged between the connecting arm and the extension arm.

4. A connection terminal according to claim 1, characterized in that: the connecting arm is L-shaped.

5. A connection terminal according to claim 1, characterized in that: the contact part comprises at least two contact units electrically connected with the electrodes of the battery core, and adjacent contact units are electrically connected.

6. A connecting terminal according to claim 5, characterized in that: the contact unit is provided with at least one contact.

7. A connecting terminal according to claim 5, characterized in that: the contact portion includes four contact units, and the four contact units together form a square.

8. A connection terminal according to claim 1, characterized in that: the contact part comprises a long side and a short side; the side edges are located at the long sides.

9. A connection terminal, comprising:

the contact part is electrically connected with the electrodes of the battery cells so as to enable the battery cells to be connected in series or in parallel; and

the pin part is formed by extending outwards from one side of the contact part and comprises an extension arm and a connecting arm for connecting the extension arm and the contact part; the connecting arm is provided with at least one bent part so that the long edge of the extension arm is tightly attached to the contact part.

10. A battery pack, comprising a plurality of cells, a circuit board, and the connection terminal according to any one of claims 1 to 9; the contact part of the connecting terminal is electrically connected with the electrode of the battery cell so as to enable the battery cells to be connected in series or in parallel; and the pin part of the connecting terminal is connected with the circuit board, so that the circuit board detects the voltage of the battery cell.