CN213660564U

CN213660564U - Battery and electronic equipment

Info

Publication number: CN213660564U
Application number: CN202021407472.6U
Authority: CN
Inventors: 陈志勇; 童焰
Original assignee: Guangdong Mic Power New Energy Co Ltd
Current assignee: Guangdong Mic Power New Energy Co Ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-07-09
Anticipated expiration: 2030-07-16

Abstract

The utility model discloses a battery and electronic equipment, this battery includes battery body, PCM board and flexible connecting portion, the battery body includes relative first polar cap and second polar cap that sets up, PCM board and the electricity of first polar cap is connected; the flexible connecting part is bent, one end of the flexible connecting part is electrically connected with the PCM board, and the other end of the flexible connecting part is electrically connected with the second pole cover. The utility model discloses a form of buckling flexible connection portion connects the two poles of the earth of battery, flexible connection portion is owing to the design of the form of buckling, can compress and extend to and control the fine setting of position, this connection of the battery two poles of the earth of different thickness dimension of just being convenient for has also reduced the precision of PCM board electrical connection hole position simultaneously, has improved the assembly flexibility of different batteries.

Description

Battery and electronic equipment

Technical Field

The utility model relates to a battery technology field, specifically, the utility model relates to a battery and electronic equipment.

Background

Nowadays, lithium ion batteries are popular among people due to high storage capacity, light weight and long cycle life, and are widely applied to various fields such as electric vehicles, notebook computers, mobile phones and the like.

The conventional lithium battery comprises a battery core and a PCM (pulse code modulation) plate, and the anode and the cathode of a plurality of lithium batteries are arranged oppositely, so that the advantages of convenience in independent connection of the anode and the cathode of the lithium batteries, no influence between the anode and the cathode and convenience in arrangement of a battery connecting line are achieved. However, when the positive electrode and the negative electrode of the lithium battery are communicated through the PCM board to prevent overcharge, overdischarge, overcurrent and overvoltage of the battery and to play a role in temperature protection, various positive and negative connecting pieces need to be designed due to different thickness and size of the battery, so that quick connection of the positive electrode and the negative electrode of the battery is inconvenient, and great waste is caused by long-term idle use of various connecting pieces.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery to solve the problem that the positive negative pole of battery is not convenient for connect.

According to the utility model discloses a first aspect provides a battery, include:

the battery comprises a battery body, a first electrode cover and a second electrode cover, wherein the first electrode cover and the second electrode cover are oppositely arranged;

a PCM plate electrically connected with the first pole cap;

the flexible connecting part is bent, one end of the flexible connecting part is electrically connected with the PCM board, and the other end of the flexible connecting part is electrically connected with the second pole cover through laser or resistance welding.

Optionally, the battery body 1 is a button battery.

Optionally, the first polar cover is a positive polar cover, and the second polar cover is a negative polar cover.

Optionally, the flexible connection portion is at least one of S-shaped or N-shaped.

Optionally, the flexible connection portion is made of an alloy of one or more of metallic aluminum, nickel and stainless steel.

Optionally, a surface of the flexible connection portion is provided with a plating layer composed of at least one of gold, silver, and nickel.

Optionally, the flexible connection portion is composed of molten metal particles and a thermosetting conductive resin.

Optionally, the first pole cover further comprises a first pole post, and the PCM board is electrically connected to the first pole post.

Optionally, the second electrode cover surface is covered with an insulating layer.

Optionally, the PCM board surface has a protective layer.

According to a second aspect of the present invention, there is provided an electronic device comprising the battery of the first aspect.

The utility model has the technical effects that:

the utility model discloses a battery, which comprises a battery body, a PCM plate and a flexible connecting part, wherein the battery body comprises a first polar cover and a second polar cover which are oppositely arranged, and the PCM plate is electrically connected with the first polar cover; the flexible connecting part is bent, one end of the flexible connecting part is electrically connected with the PCM board, and the other end of the flexible connecting part is electrically connected with the second pole cover. The utility model discloses a form of buckling flexible connection portion connects the two poles of the earth of battery, flexible connection portion can compress and extend owing to the design of the form of buckling, is convenient for the connection of the battery two poles of the earth of different thickness sizes.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic perspective view of a battery according to an embodiment of the present invention;

fig. 2 is a front view of a battery according to an embodiment of the present invention;

fig. 3 is a bottom view of a battery according to an embodiment of the present invention;

fig. 4 is a schematic view of an electrical connection structure between the other end of the flexible connection portion of the battery and the second electrode cover according to an embodiment of the present invention.

Wherein: 1-a battery body; 2-PCM boards; 3-a flexible connection; 4-a first pole; 5-insulating layer.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Referring to fig. 1 and 2, the utility model discloses a battery, include:

the battery pack comprises a battery body 1, a PCM plate 2 and a flexible connecting part 3, wherein the battery body 1 comprises a first polar cover and a second polar cover which are oppositely arranged, and the PCM plate 2 is electrically connected with the first polar cover;

the flexible connecting portion 3 is the form of buckling, the one end of flexible connecting portion 3 with the PCM board 2 electricity is connected, the other end of flexible connecting portion 3 with the second pole cover realizes the electricity through laser or resistance weld and connects.

The PCM board 2 is a protection module of the battery, comprises a management chip, an MOS tube, a resistor, a capacitor, a PCB board and the like, has the functions of preventing the problems of overcharge, overdischarge, overcurrent, overvoltage and the like of the battery and protecting the temperature of the battery.

Specifically, referring to fig. 4, the other end of the flexible connecting portion 3 is bent toward the second pole cover, and at least one connecting point is disposed between the other end of the flexible connecting portion 3 and the second pole cover, the number of the connecting points may be one, two, three, four or more, the specific number of the connecting points may be determined according to the strength requirement of the electrical connection between the other end of the flexible connecting portion 3 and the second pole cover and the complexity of the connecting process, and the connecting points may be formed by laser welding or resistance welding. In a specific embodiment, referring to fig. 4, the number of the connection points is two, and the two connection points are arranged oppositely, so that the connection process is simplified while the electrical connection strength between the other end of the flexible connection portion 3 and the second pole cover is ensured.

When the traditional battery is used for communicating the positive electrode and the negative electrode of the lithium battery through the PCM plate so as to prevent the overcharge, the overdischarge, the overcurrent and the overvoltage of the battery and play a role in temperature protection, various positive and negative connecting pieces need to be designed due to different thickness and size of the battery, so that the quick connection of the positive electrode and the negative electrode of the battery is inconvenient, and the various connecting pieces are idle for a long time to cause great waste. The utility model discloses a form of buckling flexible connecting portion 3 is connected the two poles of the earth of battery, flexible connecting portion 3 can compress and extend owing to the design of the form of buckling to and control the fine setting of position, this connection of the battery two poles of the earth of different thickness dimension of just being convenient for has also reduced the precision of PCM board electrical connection hole position simultaneously, has improved the assembly flexibility of battery.

Optionally, the battery body 1 is a button battery. The button cell has simple structure, low price and stable discharge, is suitable for microampere discharge requirements, and can be widely used in calculators, electronic toys, hearing aids, lighters, watches and other small appliances. However, button cells are complex in size due to a large number of types, and connecting assemblies of various sizes are required when two poles of the button cells are connected. And the utility model discloses a can compress and extend the design of flexible connecting portion 3 alright in order being applicable to multiple type, the button cell of many sizes.

Optionally, the first polar cover is a positive polar cover, and the second polar cover is a negative polar cover. The PCM plate 2 is directly connected with the positive cover, the flexible connecting part 3 is directly connected with the negative cover, and finally the PCM plate 2 is connected with the flexible connecting part 3 to communicate the two poles of the battery, so that the charging and discharging current, voltage, capacity and temperature of the battery can be monitored and controlled. The first pole cover may be a negative pole cover, the second pole cover may be a positive pole cover, and the connection between the PCM board 2 and the flexible connecting portion 3 may connect the two poles of the battery.

Optionally, the flexible connecting portion 3 is at least one of S-shaped or N-shaped.

Referring to fig. 1 and 2, in a specific embodiment, the flexible connecting portion 3 is disposed in an S-shape, which is advantageous in facilitating compression and extension of the flexible connecting portion 3, reducing stress concentration at the bending portion of the flexible connecting portion 3, preventing damage and fracture of the bending portion of the flexible connecting portion 3 due to excessive stress, and improving the service life of the flexible connecting portion 3. In addition, the flexible connecting portion 3 may be provided in an N-shape, and the compression and the tension of the flexible connecting portion 3 may be realized in the same manner. As for other deformation structures that can realize compression and stretching of the flexible connecting part 3, the utility model discloses do not do the restriction to this.

Optionally, the flexible connecting portion 3 is made of at least one of aluminum, nickel and stainless steel. Due to the lower density and better ductility and deformability of the metal aluminum, the weight of the flexible connecting part 3 can be reduced while the compression and the extension of the flexible connecting part 3 are well realized; and the metal nickel and the stainless steel have good structural strength, so that the structural stability of the flexible connecting part 3 can be ensured.

Optionally, the surface of the flexible connecting portion 3 may be further provided with a plating layer composed of at least one of gold, silver, and nickel. This provides a wider selection range for the material of the flexible connecting portion 3, and the provision of the metal plating layer can improve the welding performance of the flexible connecting portion 3.

Alternatively, the flexible connection portion 3 is composed of molten metal particles and a thermosetting conductive resin.

Specifically, the flexible connecting portion 3 is formed by using metal particles to form a conductive framework, and then filling the conductive framework with a thermosetting conductive resin, wherein the metal particles can be selected from various choices, such as metal aluminum, metal tin, metal copper, and the like. Therefore, on the basis of ensuring the electric conduction of the flexible connecting part, the denaturation capability of the flexible connecting part 3 is improved, and the weight of the flexible connecting part 3 is reduced. In addition, one end of the flexible connecting part 3 can be electrically connected with the PCM board 2 after the flexible connecting part 3 is melted, so that the connecting strength can be increased, and the transmission efficiency of the electrical connection can be ensured.

Optionally, referring to fig. 1 and 2, the first pole cover further comprises a first pole post 4, and the PCM board 2 is electrically connected with the first pole post 4.

Because the area of first utmost point lid is great, be not convenient for lug connection and external output current, first utmost point post 4's design alright with will conveniently PCM board 2 with first utmost point lid electricity is connected, moreover first utmost point post 4 can play fine transmission electric energy's effect as the port of the external output current of battery body.

Optionally, referring to fig. 1 to 3, the second pole cover is covered with an insulating layer 5, and a circular through hole is left in the center of the insulating layer 5, so that the second pole cover is connected with an external device conveniently.

Because the second pole cover is large in area and made of metal, most accommodating cavities of the battery are metal cavities in the using process, and in order to ensure good insulation between the battery and the accommodating cavities and guarantee long-term stable use of the battery, the insulating layer 5 is arranged on the surface of the second pole cover in a covering mode; the insulating layer 5 may be coated around the battery body 1 to further improve the insulation of the entire battery.

Specifically, the insulating layer 5 can be a polyimide film which has outstanding high temperature resistance, radiation resistance, chemical corrosion resistance and electrical insulating performance, can be used in air at 250-280 ℃ for a long time, and can play a role in overall insulation and protection of the battery.

Optionally, the PCM board 2 has a protective layer on its surface. The PCM board 2 serves as a protection module of a battery and includes a plurality of important components, such as a chip, a circuit board, etc., so that the stability and sealing performance of the PCM board 2 are important. While the protective layer on the surface of the PCM board 2 may just as well serve the function of protecting and sealing the PCM board 2.

The utility model also discloses an electronic equipment, include the battery.

Specifically, the electronic device further comprises a main board connected with the battery, and the main board is used for controlling the electric energy output of the battery.

The electronic device may be one of a smart watch, a cell phone, a tablet, an e-book reader, an MP3 player, an MP4 player, a computer, a set-top box, a smart tv, and a wearable device.

Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A battery, comprising:

a PCM plate electrically connected with the first pole cap;

2. The battery of claim 1, wherein the battery body is a button cell.

3. The battery of claim 1, wherein the first cover is a positive cover and the second cover is a negative cover.

4. The battery of claim 1, wherein the flexible connection is at least one of S-shaped or N-shaped.

5. The battery of claim 1, wherein the first pole cap further comprises a first pole post, the PCM board being electrically connected to the first pole post.

6. The battery of claim 1, wherein the second cap surface cap is provided with an insulating layer.

7. The battery of claim 1, wherein the PCM board surface has a protective layer.

8. An electronic device comprising the battery of any one of claims 1-7.