CN215732089U

CN215732089U - Lithium battery connecting device and lithium battery set

Info

Publication number: CN215732089U
Application number: CN202122006143.1U
Authority: CN
Inventors: 梁琪; 蔺会民; 王志云; 曾利强
Original assignee: Shenzhen Harding Energy Co ltd
Current assignee: Shenzhen Harding Energy Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-02-01
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses a lithium battery connecting device and a lithium battery set, relates to the technical field of new energy, and solves the technical problem that in the prior art, the space in a handle battery compartment is insufficient, so that the assembly is difficult. The device comprises a first circuit board, a second circuit board and a connecting nickel sheet; the first circuit board is a hard circuit board, and the second circuit board is a flexible circuit board; the first circuit board and the second circuit board are electrically connected; the connecting nickel sheet is electrically connected with the anode or the cathode of the lithium battery and can conduct the lithium battery and the first circuit board. According to the utility model, the first circuit board and the second circuit board are electrically connected, and then the connection nickel sheet is connected with the anode and the cathode of the lithium battery, so that the second circuit board is connected with external equipment and supplies power, and the problem of difficult assembly caused by insufficient space in the handle battery compartment is solved.

Description

Lithium battery connecting device and lithium battery set

Technical Field

The utility model relates to the technical field of new energy, in particular to a lithium battery connecting device and a lithium battery set.

Background

Lithium batteries are a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a negative electrode material. The lithium battery has the advantages of high energy, high stored energy density, long service life, high rated voltage, light weight and the like. With the development of science and technology, lithium batteries have become the mainstream nowadays.

Lithium batteries are an energy storage conversion device which is more and more widely used, because the excellent electrochemical performance of the lithium batteries realizes a market application scene of small size-medium size-large size, which is an ongoing market application scene, and when we say that the lithium batteries are used correctly, the lithium batteries are usually used in small applications, namely consumer electronics, such as smart phones, portable computers and the like. When the lithium cell was used for in the handle battery compartment, because battery compartment length and diameter space are very limited in the handle battery compartment, inconvenient when leading to whole battery and handle internal connection, consequently, the urgent need is a connecting device who uses on the lithium cell.

In the process of implementing the utility model, the utility model people find that at least the following problems exist in the prior art:

in prior art, when the lithium cell was used in handle battery compartment, there was the not enough problem that leads to the assembly difficulty in space in the handle compartment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lithium battery connecting device and a lithium battery set, and aims to solve the technical problem that in the prior art, the space in a handle battery compartment is insufficient, so that the assembly is difficult. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the utility model are described in detail in the following.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a lithium battery connecting device and a lithium battery set, which comprise a first circuit board, a second circuit board and a connecting nickel sheet; the first circuit board is a hard circuit board, and the second circuit board is a flexible circuit board; the first circuit board and the second circuit board are electrically connected; the connecting nickel sheet is electrically connected with the anode or the cathode of the lithium battery and can conduct the lithium battery and the first circuit board.

Preferably, the connecting nickel sheet comprises a first nickel sheet and a second nickel sheet; the first nickel sheet and the second nickel sheet are respectively connected with the anode and the cathode of the lithium battery.

Preferably, a contact is arranged on the first circuit board; the contact can be electrically connected with the lithium battery through the connecting nickel sheet.

Preferably, a connector is arranged on the second circuit board, and the connector can be connected with an external device.

Preferably, the first circuit board is matched with the cross section of the lithium battery in shape, and is provided with a protection module and an electric quantity calculation module.

Preferably, the connecting device further comprises an insulating sheet; the two ends of the first nickel sheet and the positive electrode of the lithium battery are provided with the insulation sheets.

Preferably, the connecting device further comprises an insulating housing; the first circuit board, the second circuit board and the connecting nickel sheet are all arranged in the insulating shell.

Preferably, the insulating sheet and the insulating shell are made of highland barley paper.

Preferably, the first circuit board and the second circuit board are both arranged on one side of the anode of the lithium battery.

A lithium battery set comprises the lithium battery connecting device and further comprises a lithium battery, wherein the lithium battery is cylindrical.

The implementation of one of the technical schemes of the utility model has the following advantages or beneficial effects:

according to the utility model, the first circuit board and the second circuit board are electrically connected, and then the connection nickel sheet is connected with the anode and the cathode of the lithium battery, so that the second circuit board is connected with external equipment and supplies power, and the problem of difficult assembly caused by insufficient space in the handle battery compartment is solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments 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 other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a first perspective view of an embodiment of a lithium battery cell attachment apparatus of the present invention;

FIG. 2 is a perspective view of a lithium battery cell pack according to an embodiment of the present invention from a second perspective;

FIG. 3 is an exploded view of the overall structure of an embodiment of a lithium battery connecting device according to the present invention;

FIG. 4 is a schematic view of the connection of a first circuit board and a second circuit board of the lithium battery connection device according to the present invention;

fig. 5 is an exploded view of the first circuit board and the second circuit board of the lithium battery connecting device of the present invention.

In the figure: 1. a first circuit board; 11. a first contact; 12. a second contact; 2. a second circuit board; 21. a connector; 3. connecting the nickel sheets; 31. a first nickel plate; 32. a second nickel plate; 4. an insulating sheet; 41. a first insulating sheet; 42. a second insulating sheet; 43. a third insulating sheet; 5. an insulating housing; 6. a lithium battery.

Detailed Description

In order that the objects, aspects and advantages of the present invention will become more apparent, various exemplary embodiments will be described below with reference to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary embodiments in which the utility model may be practiced. The same numbers in different drawings identify the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. It is to be understood that they are merely examples of processes, methods, apparatus, etc. consistent with certain aspects of the present disclosure as detailed in the appended claims, and that other embodiments may be used or structural and functional modifications may be made to the embodiments set forth herein without departing from the scope and spirit of the present disclosure.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," and the like are used in the orientations and positional relationships illustrated in the accompanying drawings for the purpose of facilitating the description of the present invention and simplifying the description, and do not indicate or imply that the elements so referred to must have a particular orientation, be constructed in a particular orientation, and be operated. The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The term "plurality" means two or more. The terms "connected" and "coupled" are to be construed broadly and may include, for example, a fixed connection, a removable connection, an integral connection, a mechanical connection, an electrical connection, a communicative connection, a direct connection, an indirect connection via intermediate media, and may include, for example, a connection between two elements or an interaction between two elements. The term "and/or" includes any and all combinations of one or more of the associated listed items. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to explain the technical solution of the present invention, the following description is made by way of specific examples, which only show the relevant portions of the embodiments of the present invention.

The first embodiment is as follows:

as shown in fig. 1-2, the present invention provides a lithium battery connection device, which comprises a first circuit board 1, a second circuit board 2 and a connection nickel sheet 3; the first wiring board 1 is a rigid wiring board, which is an important electronic component in the present invention, is a support for an electronic component, and is a carrier for electrical connection of the electronic component. The second circuit board 2 is a flexible circuit board which can reduce the volume of the product so as to save space, has high flexibility, can change the shape according to the space limitation, and can not influence the transmission of signals when being folded. The first wiring board 1 and the second wiring board 2 are electrically connected. Connect nickel piece 3 and divide into first nickel piece 31 and second nickel piece 32, the negative pole and the first circuit board 1 of lithium cell 6 are connected respectively to the both ends of first nickel piece 31, and the positive pole of first circuit board 1 and lithium cell 6 is connected respectively to the both ends of second nickel piece 32, connect nickel piece 3 and realize the anodal of lithium cell 6 and be connected with the electricity of negative pole to can switch on lithium cell 6 and first circuit board 1. According to the utility model, the first circuit board 1 and the second circuit board 2 are electrically connected, and then the connection nickel sheet 3 is connected with the anode and the cathode of the lithium battery 6, so that the second circuit board 2 is conveniently connected with external equipment to realize power supply of the external equipment, and the problem of difficult assembly caused by insufficient space in the handle battery compartment is solved.

As an alternative embodiment, as shown in fig. 4-5, the first circuit board 1 is provided with contacts, and the connection nickel sheet 3 is electrically connected with the lithium battery 6 through the contacts. The shape of connecting nickel piece 3 is the right angle U type, uses the right angle U type can match more with lithium cell 6's shape, saves space. The lengths of the side edges of the connecting nickel sheets 3 are different, so that the lithium battery 6 is conveniently connected with the first circuit board; the lengths of the bottom edges of the first nickel sheet 31 and the second nickel sheet 32 are different, and the length of the bottom edge of the first nickel sheet 31 is slightly longer than that of the lithium battery 6, so that the connection between the negative electrode of the lithium battery 6 and the first circuit board 1 is realized; the second nickel plate 32 is used for connecting the first connecting plate 1 and the positive electrode of the lithium battery 6, the number of the contacts is preferably two, the contacts are divided into a first contact 11 and a second contact 12, the connection between the first nickel plate 31 and the first circuit board 1 is realized through the first contact 11, and the connection between the second nickel plate 32 and the first circuit board 1 is realized through the second contact 12. The function of each component is realized by the conduction of the connecting nickel sheet 3 and the contact. The first circuit board 1 and the second circuit board 2 are both arranged on one side of the positive electrode of the lithium battery 6 and connected with the positive electrode of the lithium battery 6.

As an alternative embodiment, as shown in fig. 4-5, a connector 21 (the connector 21 is preferably a 6PIN connector 21) is provided on the second circuit board 2, and the connector 21 can be connected to an external device. In the present invention, the connector 21 on the second circuit board 2 is connected to an external power line or signal line, thereby solving the problem of insufficient internal space when connecting to an external device.

As an alternative embodiment, as shown in fig. 1-2, the cross-sectional shapes of the first circuit board 1 and the lithium battery 6 are matched, and the lithium battery 6, the first circuit board 1 and the second circuit board 2 are all circular. The first circuit board 1 is also provided with a protection module and an electric quantity calculation module. The electric quantity calculating module is used for calculating the residual electric quantity of the lithium battery 6; the protection module can protect the lithium battery 6 from overcharge, overdischarge, overcurrent, and short circuit. In the utility model, the protection module arranged on the first circuit board 1 can protect the lithium battery 6, and the service life of the lithium battery 6 is prolonged.

As an alternative embodiment, as shown in fig. 3, the connecting device further includes an insulating sheet 4 (in the present invention, the number of the insulating sheets 4 is preferably three), and the insulating sheet 4 can insulate the positive electrode and the negative electrode of the lithium battery 6, so as to avoid conducting discharge in some accidental situations. The two ends of the first nickel sheet 31 and the positive electrode of the lithium battery 6 are provided with the insulation sheets 4, the first insulation sheet 41 is arranged on the positive electrode of the lithium battery 6, and after the second nickel sheet 32 is abutted to the positive electrode of the lithium battery 6, the first insulation sheet 41 covers and fixes the second nickel sheet 32; the second insulating sheet 42 is provided on the negative electrode of the lithium battery 6, and after the first nickel plate 31 abuts against the negative electrode of the lithium battery 6, the second insulating sheet 42 covers and fixes the first nickel plate 31; the third insulation sheet 43 covers and fixes the first nickel sheet 31 after the first nickel sheet 31 is connected with the first contact 11. in the present invention, the first insulation sheet 41 prevents the incorrect conduction between the positive electrode of the lithium battery 6 and the circuit board, the second insulation sheet 42 prevents the negative electrode of the lithium battery 6 from being in contact conduction with the external circuit, and the third insulation sheet 43 prevents the incorrect conduction between the positive electrode of the lithium battery 6 and the outside.

As an alternative embodiment, as shown in fig. 3, the connection device further comprises an insulating housing 5; the first circuit board 1, the second circuit board 2 and the connection nickel sheet 3 are all arranged in the insulation shell 5, and the insulation shell 5 protects the first circuit board 1, the second circuit board 2 and the connection nickel sheet 3. The insulating shell 5 is also provided with a notch, so that the connector 21 arranged on the second circuit board 2 is connected with external equipment. The insulating sheet 4 and the insulating shell 5 are made of highland barley paper, and the highland barley paper has good mechanical strength, higher electrical strength, flat and smooth product surface and high toughness, and is widely used as an insulating material in equipment such as motors, electric appliances, instruments and the like.

The embodiment is only a specific example and does not indicate such an implementation of the utility model.

Example two:

a lithium battery pack includes the lithium battery connection device in the embodiment, as shown in fig. 3, and further includes a lithium battery (the shape of the lithium battery may be cylindrical or square), and the shape of the lithium battery in the present invention is preferably cylindrical. According to the utility model, the first circuit board 1 and the second circuit board 2 are electrically connected, and then the connecting nickel sheet 3 is connected with the anode and the cathode of the lithium battery 6, so that the second circuit board 2 is connected with external equipment and supplies power to the external equipment, and the problem of difficult assembly caused by insufficient space in the handle battery compartment is solved.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. A lithium battery connecting device is used for being connected with a lithium battery and conducting, and is characterized by comprising a first circuit board, a second circuit board and a connecting nickel sheet; the first circuit board is a hard circuit board, and the second circuit board is a flexible circuit board; the first circuit board and the second circuit board are electrically connected; the connecting nickel sheet is electrically connected with the anode or the cathode of the lithium battery and can conduct the lithium battery and the first circuit board.

2. The lithium battery connection device according to claim 1, wherein the connection nickel plate comprises a first nickel plate and a second nickel plate; the first nickel sheet and the second nickel sheet are respectively connected with the anode and the cathode of the lithium battery.

3. The lithium battery connecting device as claimed in claim 1, wherein the first circuit board is provided with a contact; the contact can be electrically connected with the lithium battery through the connecting nickel sheet.

4. The lithium battery connecting device as claimed in claim 1, wherein a connector is provided on the second circuit board, and the connector is capable of connecting with an external device.

5. The lithium battery connection device as claimed in claim 1, wherein the first circuit board is matched with the cross-sectional shape of the lithium battery, and is provided with a protection module and an electric quantity calculation module.

6. The lithium battery cell connecting device as claimed in claim 2, wherein the connecting device further comprises an insulating sheet; the two ends of the first nickel sheet and the positive electrode of the lithium battery are provided with the insulation sheets.

7. The lithium battery cell connecting device as claimed in claim 1, wherein the connecting device further comprises an insulating case; the first circuit board, the second circuit board and the connecting nickel sheet are all arranged in the insulating shell.

8. The lithium battery connecting device as claimed in claim 6 or 7, wherein the insulating sheet and the insulating casing are made of highland barley paper.

9. The lithium battery connecting device as claimed in claim 1, wherein the first circuit board and the second circuit board are disposed on a positive electrode side of the lithium battery.

10. A lithium battery pack comprising the lithium battery connecting device according to any one of claims 1 to 9, further comprising a lithium battery, the lithium battery having a cylindrical shape.