WO2022206518A1

WO2022206518A1 - Battery and terminal device

Info

Publication number: WO2022206518A1
Application number: PCT/CN2022/082555
Authority: WO
Inventors: 林鸿凯; 卫志达; 曾玉祥; 王永旺; 许德胜; 陈龙云
Original assignee: 珠海冠宇电池股份有限公司
Priority date: 2021-03-30
Filing date: 2022-03-23
Publication date: 2022-10-06
Also published as: CN214411333U

Abstract

A battery (100) and a terminal device, which relate to the technical field of batteries, and aim at solving the technical problem of the energy density of a button battery being low due to the structure of an existing button battery not being compact. The battery (100) is used for being mounted on a terminal device, and comprises: a battery body (10), a positive electrode adapter sheet (20) and a negative electrode adapter sheet (30), wherein a first input end (21) of the positive electrode adapter sheet (20) is electrically connected to a positive electrode (11) of the battery body (10), and a second input end (31) of the negative electrode adapter sheet (30) is electrically connected to a negative electrode (12) of the battery body (10); and a first output end (23) of the positive electrode adapter sheet (20) and a second output end (32) of the negative electrode adapter sheet (30) are both located on a side wall of the battery body (10). It is possible to prevent the positive adapter sheet (20) and the negative electrode adapter sheet (30) from occupying the height space of the battery (100), such that the structure of the battery (100) is more compact, thereby increasing the energy density of the battery (100), and improving the endurance capability of the battery (100) and the terminal device.

Description

Batteries and Terminal Equipment

This application claims the priority of the Chinese patent application with the application number 202120646270.5 and the application name "Battery and Terminal Equipment" filed with the China Patent Office on March 30, 2021, the entire contents of which are incorporated into this application by reference.

technical field

The present application belongs to the technical field of lithium ion batteries, and specifically relates to batteries and terminal equipment.

Background technique

Button battery, also known as button battery, refers to a battery with a size like a small button. Generally speaking, it has a larger diameter and a thinner thickness. Button batteries are classified according to their appearance. The corresponding battery classifications include cylindrical batteries, Square battery, special-shaped battery, etc.

Button batteries are widely used in terminal equipment, and the terminal equipment generally has an installation slot, and the button battery is assembled in the installation slot. The existing button battery generally includes a battery body and an assembly structure. The assembly structure is arranged outside the battery body. The assembly structure includes a positive electrode adapter sheet and a negative electrode adapter sheet. The input end of the positive electrode adapter sheet is electrically connected to the positive electrode of the battery body. , the input end of the negative electrode adapter is electrically connected to the negative electrode of the battery body, the output ends of the positive electrode adapter and the negative electrode adapter are electrically connected to the positive and negative pins of the terminal equipment respectively, and the positive electrode adapter It is located above the battery body, and the negative electrode adapter is located below the battery body.

However, the existing button batteries are not compact in structure, resulting in low energy density of the button batteries.

Application content

In order to solve at least one problem mentioned in the background art, the present application provides a battery and a terminal device, which can avoid the high space of the battery occupied by the positive electrode adapter and the negative electrode adapter, make the battery structure more compact, and improve the energy density of the battery , to improve the battery and terminal equipment's battery life.

In order to achieve the above purpose, on the one hand, the present application provides a battery for installation on a terminal device, including a battery body, a positive electrode adapter and a negative electrode adapter, a first input end of the positive electrode adapter and a battery body The positive electrode of the battery is electrically connected, and the second input end of the negative electrode adapter is electrically connected to the negative electrode of the battery body.

The first output end of the positive electrode adapter sheet and the second output end of the negative electrode adapter sheet are both located on the side wall of the battery body.

In the battery provided by the present application, the positive and negative electrodes of the battery body are easily connected to the pins of the terminal equipment by setting the positive electrode adapter and the negative electrode adapter. On the side wall of the battery body, the height space of the battery is avoided to the greatest extent by the positive electrode adapter and the negative electrode adapter, the height of the battery body is increased, the battery structure is more compact, the energy density of the battery is improved, and the battery life.

In the above-mentioned battery, optionally, the positive electrode of the battery body is located on the top of the battery body, and the first input end of the positive electrode adapter sheet is located on the top of the battery body.

In the above battery, optionally, the negative electrode of the battery body is located on the side wall of the battery body, and an insulating member is provided between the first output end of the positive electrode adapter and the side wall of the battery body.

The second input end of the negative electrode adapter is located on the side wall of the battery body.

In the above-mentioned battery, optionally, the negative electrode of the battery body is located at the bottom of the battery body, and the second input end of the negative electrode adapter sheet is located at the bottom of the battery body.

In the above-mentioned battery, optionally, the positive electrode adapter further includes a first connecting portion, the first connecting portion is attached to the side wall of the battery body, and the first connecting portion is connected to the first input end and the first output end .

The first input end is located at the first end of the first connection part.

In the above-mentioned battery, optionally, the end of the first output end extends in a direction away from the battery body.

The root of the first output end is located in the middle of the first connection part, or the root of the first output end is located at the second end of the first connection part, and the first end and the second end are oppositely arranged.

In the above-mentioned battery, optionally, the second input end of the negative electrode adapter has an abutting surface and a mounting surface that are oppositely arranged, the abutting surface is in contact with the side wall of the battery body, and the root of the second output end is located at the mounting surface. On the surface, the end of the second output end extends in a direction away from the mounting surface.

In the above-mentioned battery, optionally, the negative electrode adapter sheet includes a second connecting portion, the second connecting portion is attached to the side wall of the battery body, and the second connecting portion is connected to the second input end and the second output end.

The second input end is located at the third end of the second connection part.

The end of the second output end extends away from the battery body, the root of the second output end is located at the fourth end of the second connection part, or the root of the second output end is located in the middle of the second connection part.

The third end and the fourth end are arranged opposite to each other.

In the above-mentioned battery, optionally, the battery includes a positioning piece, and the positioning piece is arranged on the side wall of the battery body.

The positioning sheet includes a positioning part and a mounting part, the mounting part is attached to the side wall of the battery body, the root of the positioning part is located on the side of the mounting part away from the battery body, and the end of the positioning part extends away from the mounting part.

The positioning part is provided with a buckle, and the buckle is used to be clamped in the card slot of the terminal device.

On the other hand, the present application provides a terminal device, the terminal device includes an installation slot and the battery described in any one of the above, the battery is arranged in the installation slot, and a card slot is arranged in the installation slot, and the card slot and the battery card Buckle.

In the terminal equipment provided by this application, by arranging a positive electrode adapter piece and a negative electrode adapter piece outside the battery body, the positive electrode and the negative electrode of the battery body can be easily connected to the pins of the terminal device. The output terminals of the battery are all arranged on the side wall of the battery body, which avoids to the greatest extent the positive electrode adapter and the negative electrode adapter occupying the height space of the battery, increases the height of the battery body, makes the battery structure more compact, and improves the battery life. The energy density improves the endurance of the terminal equipment.

Description of drawings

1 is a schematic structural diagram of a battery provided in Embodiment 1 of the present application;

FIG. 2 is a schematic structural diagram of a battery (excluding a cover plate) provided in Embodiment 1 of the present application;

3 is a schematic structural diagram of the first positive electrode adapter sheet of the battery provided in Embodiment 1 of the present application;

4 is a schematic structural diagram of the first negative electrode adapter sheet of the battery provided in the first embodiment of the application;

5 is a schematic structural diagram of a positioning piece of a battery provided in Embodiment 1 of the present application;

6 is a front view of the second type of positive electrode adapter provided in Embodiment 1 of the present application;

7 is a front view of a second type of negative electrode adapter provided in Embodiment 1 of the present application;

FIG. 8 is a front view of a third negative electrode adapter sheet provided in Embodiment 1 of the present application.

Description of reference numbers:

100 - battery;

10-Battery body;

11- positive electrode;

12 - negative electrode;

13 - cover plate;

20-positive adapter;

21 - the first input terminal;

22 - the first connecting part;

23 - the first output terminal;

30-negative adapter;

31 - the second input terminal;

32 - the second output terminal;

33 - the second connecting part;

40-insulation piece;

50-positioning piece;

51 - positioning part;

52 - Mounting section.

Detailed ways

In the field of battery technology, button batteries are widely used in terminal equipment. The terminal equipment generally has an installation groove, and the button battery is assembled in the installation groove. The existing button battery generally includes a battery body and an assembly structure. The assembly structure is arranged outside the battery body. The assembly structure includes a positive electrode adapter sheet and a negative electrode adapter sheet. The input end of the positive electrode adapter sheet is electrically connected to the positive electrode of the battery body. , the input end of the negative electrode adapter is electrically connected to the negative electrode of the battery body, the output ends of the positive electrode adapter and the negative electrode adapter are electrically connected to the positive and negative pins of the terminal equipment respectively, and the positive electrode adapter It is located above the battery body, and the negative electrode adapter is located below the battery body. However, the assembly structure of the existing button battery is not compact enough, and the positive electrode adapter and the negative electrode adapter occupy the height space of the button battery, which reduces the height of the battery body, resulting in low energy density of the button battery, which affects the battery and terminal equipment. battery life.

The present application provides a battery and a terminal device. By arranging a positive electrode adapter piece and a negative electrode adapter piece, the positive electrode and the negative electrode of the battery body can be easily connected to the pins of the terminal device. By connecting the positive electrode adapter piece and the negative electrode adapter piece The output terminals of the battery are all arranged on the side wall of the battery body, which avoids to the greatest extent the positive electrode adapter and the negative electrode adapter occupying the height space of the battery, increases the height of the battery body, makes the battery structure more compact, and improves the battery life. The energy density increases the battery life.

In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present application. Throughout the drawings, the same or similar reference numbers refer to the same or similar parts or parts having the same or similar functions. The described embodiments are some, but not all, of the embodiments of the present application. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present application, but should not be construed as a limitation to the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application. The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Example 1

FIG. 1 is a schematic structural diagram of a battery provided in Embodiment 1 of the present application. FIG. 2 is a schematic structural diagram of a battery (excluding a cover plate) provided in Embodiment 1 of the present application. FIG. 3 is a schematic structural diagram of a first positive electrode adapter sheet of the battery provided in Embodiment 1 of the present application. FIG. 4 is a schematic structural diagram of the first negative electrode adapter sheet of the battery provided in the first embodiment of the present application. FIG. 5 is a schematic structural diagram of a positioning sheet of a battery provided in Embodiment 1 of the present application. FIG. 6 is a front view of a second type of positive electrode adapter provided in Embodiment 1 of the present application. FIG. 7 is a front view of the second negative electrode adapter provided in the first embodiment of the application. FIG. 8 is a front view of a third negative electrode adapter sheet provided in Embodiment 1 of the present application.

Referring to FIGS. 1-8 , Embodiment 1 of the present application provides a battery. The battery 100 is used to be installed on a terminal device, and includes a battery body 10 , a positive electrode adapter plate 20 and a negative electrode adapter plate 30 . The first input end 21 of the tab 20 is electrically connected to the positive electrode 11 of the battery body 10 , and the second input end 31 of the negative electrode adapter 30 is electrically connected to the negative electrode 12 of the battery body 10 . By arranging the positive electrode adaptor 20 and the negative electrode adaptor 30 , the positive electrode 11 and the negative electrode 12 of the battery body 10 are easily connected to the pins of the terminal device. The first output end 23 of the positive electrode adapter plate 20 and the second output end 32 of the negative electrode adapter plate 30 are both located on the side wall of the battery body 10 . By arranging the output ends of the positive electrode adapter sheet 20 and the negative electrode adapter sheet 30 on the side wall of the battery body 10 , the positive electrode adapter sheet 20 and the negative electrode adapter sheet 30 are prevented from occupying the height space of the battery 100 to the greatest extent, and the height space of the battery 100 is increased. The height of the battery body 10 is increased, so that the structure of the battery 100 is more compact, the energy density of the battery 100 is improved, and the battery life of the battery 100 is improved.

Specifically, as shown in FIG. 2 , the positive electrode 11 of the battery body 10 may be located on the top of the battery body 10 , the first input end 21 of the positive electrode adapter 20 is also located on the top of the battery body 10 , and the first input end 21 and the positive electrode 11 abuts, and then a cover plate 13 may be provided above the first input end 21 , and the cover plate 13 may be made of insulating material, so as to prevent interference with the electrical connection between the first input end 21 and the positive electrode 11 . Further, the negative electrode 12 of the battery body 10 may be located on the side wall of the battery body 10 , an insulating member 40 may be provided between the first output end 23 of the positive electrode adapter 20 and the side wall of the battery body 10 , and the insulating member 40 may be provided. A short circuit of the positive electrode adapter 20 can be avoided. The second input end 31 of the negative electrode adapter 30 is located on the side wall of the battery body 10 . In this way, both the first output end 23 of the positive electrode adapter sheet 20 and the negative electrode adapter sheet 30 are located on the side wall of the battery body 10, which saves the height space of the battery 100, increases the height of the battery body 10 to the greatest extent, and can improve the battery 100 energy density.

Specifically, as shown in FIG. 3 , the positive electrode adapter sheet 20 further includes a first connecting portion 22 , the first connecting portion 22 is attached to the side wall of the battery body 10 , and the first connecting portion 22 is connected to the first input end 21 and the The first output terminal 23 . The first input end 21 is located at the first end of the first connection part 22 . The first connection part 22 can not only connect the first input end 21 and the first output end 23 , but also increase the contact area between the positive electrode adapter 20 and the battery body 10 , so that the installation of the positive electrode adapter 20 on the battery body 10 is stable. Sex is better.

Further, the end of the first output end 23 extends away from the battery body 10 . As shown in FIG. 6 , the root of the first output end 23 is located in the middle of the first connection part 22 , or, as shown in FIG. 3 , the root of the first output end 23 is located at the second end of the first connection part 22 . The first end and the second end are oppositely arranged. It should be noted that the first end and the second end are opposite ends of the first connecting portion 22 , the first end close to the first input end 21 is the first end, and the second end close to the first output end 23 is the second end. The arrangement is such that the position of the first output end 23 on the first connection part 22 can be adjusted according to the position of the pin on the terminal device, thereby improving the applicability of the positive electrode adapter plate 20 .

As shown in FIG. 4 , the second input end 31 of the negative electrode adapter 30 has an abutting surface and a mounting surface oppositely arranged, the abutting surface is in contact with the side wall of the battery body 10 , and the root of the second output end 32 is located at the mounting surface. On the surface, the end of the second output end 32 extends in a direction away from the mounting surface. In this way, the negative electrode adapter 30 can be attached to the side wall of the battery body 10 without compressing the height space of the battery body 10 .

In a possible implementation, the battery 100 may include a positioning piece 50 , and the positioning piece 50 may be disposed on the side wall of the battery body 10 . The positioning sheet 50 includes a positioning portion 51 and a mounting portion 52. The mounting portion 52 is attached to the side wall of the battery body 10. The root of the positioning portion 51 is located on the side of the mounting portion 52 away from the battery body 10. The end of the positioning portion 51 It extends in a direction away from the mounting portion 52 . The positioning portion 51 may be provided with a buckle (not shown), and the buckle is used to be clamped in a card slot of the terminal device. In this way, on the one hand, it is convenient to position and install the battery 100 on the terminal device. On the other hand, the battery 100 can be firmly fixed on the terminal device to ensure the assembly stability of the battery 100. In addition, the positioning piece 50 is located on the side wall of the battery body 10. , which avoids occupying the height space of the battery 100 , can maximize the height of the battery body 10 , make the overall structure of the battery 100 more compact, and improve the energy density of the battery 100 .

As another achievable embodiment, the negative electrode 12 of the battery body 10 may be located at the bottom of the battery body 10 , and the second input end 31 of the negative electrode adapter 30 is located at the bottom of the battery body 10 and abuts against the negative electrode 12 . Specifically, the negative electrode adapter 30 includes a second connecting portion 33 , which is attached to the side wall of the battery body 10 , and is connected to the second input end 31 and the second output end 32 . The second input end 31 is located at the third end of the second connection portion 33 . The end of the second output end 32 extends away from the battery body 10 , as shown in FIG. 7 , the root of the second output end 32 is located at the fourth end of the second connection part 33 , or, as shown in FIG. 8 , the first The roots of the two output ends 32 are located in the middle of the second connecting portion 33 . The third end and the fourth end are arranged opposite to each other. It should be noted that the third end refers to the end of the second connection part 33 close to the second input end 31 , and the fourth end refers to the end of the second connection part 33 close to the second output end 32 . The above two setting methods enable the second output end 32 to be adjusted according to the pin position of the terminal device, thereby improving the applicability of the negative electrode adapter plate 30 .

It should be noted that the contact parts of the positive electrode adapter piece 20 , the negative electrode adapter piece 30 and the positioning piece 50 and the side wall of the battery body 10 can all be set to be arc-shaped to match the shape of the battery body 10 , so that not only the contact is reliable , it can also maximize the space utilization rate after the battery 100 is assembled, and improve the energy density of the battery body 10. In addition, the positive electrode adapter piece 20, the negative electrode adapter piece 30 and the positioning piece 50 can all be laser welded to the battery body 10. connect.

Embodiment 2

On the basis of the above-mentioned first embodiment, the second embodiment provides a terminal device. The terminal device includes an installation slot and the above-mentioned battery 100. The battery 100 is arranged in the installation slot, and a card slot is arranged in the installation slot. It is connected with the buckle of the battery 100 .

It should be noted that the terminal device may be an electronic device with a battery 100, such as a Bluetooth headset, VR glasses, a Bluetooth speaker, a sports watch, and the like.

In the terminal device provided by the present application, by arranging the positive electrode adapter piece 20 and the negative electrode adapter piece 30 outside the battery body 10, the positive electrode 11 and the negative electrode 12 of the battery body 10 can be easily connected to the pins of the terminal device. The output ends of the sheet 20 and the negative adapter sheet 30 are both arranged on the side wall of the battery body 10 , which avoids to the greatest extent the positive adapter sheet 20 and the negative electrode adapter sheet 30 occupying the height space of the battery 100 and increases the battery body 10 . The height of the battery 100 makes the structure of the battery 100 more compact, the energy density of the battery 100 is improved, and the battery life of the terminal device is improved.

In the description of the embodiments of the present application, it should be understood that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, a fixed connection may be used, or a The indirect connection through an intermediate medium may be the internal communication of the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations. The orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on The orientation or positional relationship shown in the drawings is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as LIMITATIONS ON THIS APPLICATION. In the description of this application, "plurality" means two or more, unless it is precisely and specifically specified otherwise.

The terms "first", "second", "third", "fourth", etc. in the description and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the application described herein can, for example, be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to make modifications to the technical solutions recorded in the foregoing embodiments, or to perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present application. scope.

Claims

A battery, which is used to be installed on a terminal device, includes a battery body, a positive electrode adapter sheet and a negative electrode adapter sheet, and the first input end of the positive electrode adapter sheet is electrically connected to the positive electrode of the battery body, The second input end of the negative electrode adapter is electrically connected to the negative electrode of the battery body;

The first output end of the positive electrode adapter sheet and the second output end of the negative electrode adapter sheet are both located on the side wall of the battery body.
The battery according to claim 1, wherein the positive electrode of the battery body is located on the top of the battery body, and the first input end of the positive electrode adapter sheet is located on the top of the battery body.
The battery according to claim 1 or 2, wherein the negative electrode of the battery body is located on the side wall of the battery body, between the first output end of the positive electrode adapter and the side wall of the battery body provided with insulating parts;

The second input end of the negative electrode adapter is located on the side wall of the battery body.
The battery according to claim 1 or 2, wherein the negative electrode of the battery body is located at the bottom of the battery body, and the second input end of the negative electrode adapter sheet is located at the bottom of the battery body.
The battery according to any one of claims 1-3, wherein the positive electrode adapter further comprises a first connecting part, the first connecting part is attached to the side wall of the battery body, and the first connecting part is a connecting part connects the first input end and the first output end;

The first input end is located at the first end of the first connection part.
The battery of claim 5, wherein an end of the first output end extends away from the battery body;

The root of the first output end is located in the middle of the first connection part, or the root of the first output end is located at the second end of the first connection part, and the first end and the second end are opposite to each other set up.
The battery according to any one of claims 1-3, 5, and 6, wherein the second input end of the negative electrode adapter has an abutting surface and a mounting surface that are oppositely arranged, and the abutting surface and The side wall of the battery body is abutted, the root of the second output end is located on the installation surface, and the end of the second output end extends in a direction away from the installation surface.
The battery according to any one of claims 1-2 and 4, wherein the negative electrode adapter comprises a second connection part, the second connection part is attached to the side wall of the battery body, the The second connection part connects the second input end and the second output end;

the second input end is located at the third end of the second connection part;

The end portion of the second output end extends away from the battery body, the root portion of the second output end is located at the fourth end of the second connection portion, or the root portion of the second output end is located at the fourth end of the second output end. The middle of the two connecting parts;

The third end and the fourth end are opposite to each other.
The battery according to any one of claims 1-3 and 5-7, wherein the battery comprises a positioning piece, and the positioning piece is arranged on a side wall of the battery body;

The positioning piece includes a positioning part and an installation part, the installation part is attached to the side wall of the battery body, the root part of the positioning part is located on the side of the installation part away from the battery body, the an end of the positioning portion extends away from the mounting portion;

The positioning portion is provided with a buckle, and the buckle is used to be clamped in a card slot of the terminal device.
A terminal device, comprising an installation slot and the battery according to any one of claims 1-9, the battery is arranged in the installation slot, a card slot is arranged in the installation slot, the card slot is The slot is connected with the buckle of the battery.