CN210668603U

CN210668603U - Battery packs and electronic equipment

Info

Publication number: CN210668603U
Application number: CN201922099538.3U
Authority: CN
Inventors: 罗涛; 陈仁杰; 王宗强
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-06-02
Anticipated expiration: 2029-11-27

Abstract

The present disclosure provides a battery pack and an electronic apparatus. The battery pack includes: cell and battery protection shield. An electrode is arranged at the end part of the electric core; the battery protection board comprises a protection board body, a bending body and an electric connector, wherein the protection board body comprises a first hard board region and a first soft board region which are connected, the first hard board region is electrically connected with the electrode, the electric connector is arranged in the first soft board region, the bending body is connected with the edge of the first hard board region, and the bending body is bent towards the electrode. This battery protection shield conveniently lays more components and parts through setting up the area of laying that the body of buckling increases components and parts to satisfy quick charge's great electric current requirement, and the body of buckling is buckled towards the electrode, and this makes the body make full use of space of buckling, avoids the size of increase protection shield body and increases the size of battery pack, and this does benefit to the capacity that promotes battery pack.

Description

Battery pack and electronic device

Technical Field

The present disclosure relates to the field of electronic devices, and in particular, to a battery pack and an electronic device.

Background

The battery is protected by the battery protection board so as to prevent the problems of overcharge, overdischarge, short circuit and the like of the battery core. With the research on the rapid charging of electronic devices, the area of the battery protection board needs to be increased to meet the flow requirement of a larger current, but the capacity of the battery assembly is reduced.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides an improved battery assembly and electronic device.

One aspect of the present disclosure provides a battery assembly including:

the end part of the battery cell is provided with an electrode; and

the battery protection board comprises a protection board body, a bending body and an electric connector;

the protection shield body includes that the first hard board that links to each other is regional and the first soft board is regional, the first hard board region with the electrode electricity is connected, electric connector locates the first soft board is regional, buckle the body with the edge connection in the first hard board region, just buckle the body face to the electrode is buckled.

Optionally, the first soft board region extends from an edge of the first hard board region in a transverse direction, the bending body extends from an edge of the first hard board region in a longitudinal direction, and the bending body bends toward the electrode in the longitudinal direction.

Optionally, the bending body includes at least one second soft board region, and at least one second soft board region is connected to an edge of the first hard board region and is bent toward the electrode.

Optionally, the tip of electricity core is equipped with outside convex connecting portion, one side of connecting portion with the electrode is connected, the opposite side with form the space of stepping down between the electricity core, the body of buckling face the electrode is buckled and is extended to the space of stepping down.

Optionally, the bending body includes at least one second soft board region and at least one second hard board region connected, at least one second soft board region is connected with the edge of the first hard board region and faces the electrode bending, and at least one second hard board region extends to the abdicating space.

Optionally, the bending diameter of the bending body ranges from 0.5mm to 5 mm.

Optionally, the first hard plate area is connected with the bending body in a laminating mode.

Optionally, the protection plate body and the bending body are both provided with electrical components.

Optionally, a connecting piece electrically connected with the electrode is arranged on the first hard board region, the connecting piece and the electric connector are respectively arranged on the two board surfaces of the protection board body, and the first soft board region is bent towards the connecting piece.

Another aspect of the present disclosure provides an electronic device including the battery assembly of any one of the above-mentioned.

The battery pack and the electronic equipment provided by the embodiment of the disclosure have at least the following beneficial effects:

the battery pack and the electronic equipment provided by the embodiment of the disclosure have the advantages that the bending body connected with the edge of the first hard board area is arranged, so that the layout area of components of the battery protection board is increased, more components are conveniently arranged, and the requirement of rapid charging for large current is met. And the body of buckling is buckled towards the electrode, and this makes the body make full use of space of buckling, avoids increasing the size of protection shield body and increases the size of battery pack, and this is favorable to promoting battery pack's capacity.

Drawings

FIG. 1 is a schematic diagram illustrating the construction of a battery assembly according to an exemplary embodiment;

fig. 2 is a schematic front view showing an example embodiment showing a battery protection sheet being spread;

fig. 3 is a top view illustrating an example embodiment showing a battery protection plate being unfolded;

fig. 4 is a schematic rear view of an exemplary embodiment showing a battery protection sheet expanded;

3 FIG. 3 5 3 is 3 a 3 cross 3- 3 sectional 3 view 3 of 3 the 3 battery 3 assembly 3 of 3 FIG. 3 1 3 taken 3 along 3 line 3 A 3- 3 A 3; 3

FIG. 6 is an enlarged schematic view of region B of FIG. 5;

FIG. 7 is a schematic diagram illustrating the construction of a battery assembly according to an exemplary embodiment of the present disclosure;

fig. 8 is a schematic front view showing an example embodiment showing a battery protection sheet being spread;

fig. 9 is a top view showing an example embodiment showing a battery protection plate being spread;

fig. 10 is a schematic rear view showing the battery protection sheet according to an exemplary embodiment being spread;

FIG. 11 is a cross-sectional view of the battery assembly of FIG. 7 taken along line C-C;

fig. 12 is an enlarged schematic view of region D in fig. 11.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent 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. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in the description and claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprises" or "comprising" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

As used in this disclosure and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Fig. 1 is a schematic structural view of a battery pack according to an exemplary embodiment. The battery assembly 100 includes: a battery cell 110 and a battery protection plate 120. The end of the battery cell 110 is provided with an electrode 130 (shown in fig. 6), and the battery protection plate 120 is connected to the battery cell 110 through the electrode 130.

Fig. 2 is a schematic front view showing an expanded state of the battery protection sheet 120 according to an exemplary embodiment, fig. 3 is a plan view showing an expanded state of the battery protection sheet 120 according to an exemplary embodiment, and fig. 4 is a schematic rear view showing an expanded state of the battery protection sheet 120 according to an exemplary embodiment. Referring to fig. 2, 3 and 4 in combination, the battery protection plate 120 includes: a protection board body 121 and an electrical connector 125. The protection board body 121 includes a first hard board region 122 and a first soft board region 123 connected to each other, a connection member 124 connected to the electrode 130 is disposed on the first hard board region 122, and an electrical connector 125 is disposed at an end of the first soft board region 123 for electrically connecting to an electrical contact of an electronic device. When assembling the battery protection plate 120 and the battery cell 110, the connecting member 124 on the first hard plate region 122 is connected to the electrode 130, and the first soft plate region 123 is bent to face the connecting member 124 or the electrode 130, so as to form the battery assembly 100 shown in fig. 1.

3 fig. 3 5 3 is 3 a 3 cross 3- 3 sectional 3 view 3 of 3 the 3 battery 3 module 3 of 3 fig. 3 1 3 taken 3 along 3 line 3 a 3- 3 a 3. 3 As can be seen from fig. 5, the arrangement of the battery protection plate 120 affects the dimension of the battery assembly 100 in the longitudinal length direction. Fig. 6 is an enlarged schematic view of region B in fig. 5. In order to increase the current load capacity of the battery protection plate 120 to meet the quick charging requirement for the electronic device, the width X1 of the protection plate body 121 in the longitudinal direction may be increased, referring to fig. 2 and 6. However, this increases the size of the battery assembly 100 in the longitudinal length, resulting in a decrease in the capacity of the battery assembly 100.

In order to solve the above problem, embodiments of the present disclosure provide a battery assembly. Fig. 7 is a schematic diagram illustrating the structure of a battery assembly according to an exemplary embodiment of the present disclosure. The battery assembly 200 includes: a battery cell 210 and a battery protection plate 220. The end of the cell 210 is provided with an electrode 226 (shown in fig. 12), and the battery protection board 220 is connected to the cell 210 through the electrode 226.

Fig. 8 is a schematic front view illustrating the battery protection sheet 220 developed according to an exemplary embodiment, fig. 9 is a plan view illustrating the battery protection sheet 220 developed according to an exemplary embodiment, and fig. 10 is a schematic rear view illustrating the battery protection sheet 220 developed according to an exemplary embodiment. Referring to fig. 8, 9 and 10 in combination, the battery protection plate 220 includes: a protection plate body 221, a bending body 222 and an electric connector 223. The protection plate body 221 includes a first hard plate region 224 and a first soft plate region 225 connected to each other, the first hard plate region 224 is electrically connected to the electrode 226, the electrical connector 223 is disposed in the first soft plate region 225, the bending body 222 is connected to an edge of the first hard plate region 224, and the bending body 222 is bent toward the electrode 226. The electrical connector 223 is used to be fastened to an electrical contact of an electronic device, so that the battery assembly 200 is electrically connected to the electronic device, the battery assembly 200 is charged by the electronic device, or the electronic device is powered by the battery assembly 200.

The battery pack 200 provided by the embodiment of the present disclosure is provided with the bending body 222 connected to the edge of the first hard board region 224, so as to increase the layout area of the components of the battery protection board 220, thereby conveniently laying more components and satisfying the requirement of a larger current for quick charging. And the bending body 222 is bent facing the electrode 226, which makes the bending body 222 fully utilize the space, and avoids increasing the size of the protection plate body 221 to increase the size of the battery assembly 200, which is beneficial to increasing the capacity of the battery assembly 200.

In some embodiments, with continued reference to fig. 7-10, the first soft plate region 225 extends laterally from an edge of the first hard plate region 224, the bending body 222 extends longitudinally from an edge of the first hard plate region 224, and the bending body 222 bends longitudinally toward the electrode 226. It should be noted that the orientations such as "lateral", "longitudinal", "upper", "lower", and the like are based on the orientation shown in the corresponding drawings. Thus, the bent body 222 does not affect the size of the width X2 of the battery protection plate 220, does not affect the longitudinal size of the battery assembly 200, and avoids reducing the battery capacity of the battery assembly 200.

In one embodiment, the first soft board region 225 is laminated with the first hard board region 224. In another embodiment, the first hard sheet region 224 is formed by providing a reinforcing sheet on a portion of a Flexible FPC (Flexible Printed Circuit), and the first soft sheet region 225 is formed on a region where the reinforcing sheet is not provided.

In some embodiments, with continued reference to fig. 9, the first hard plate region 224 is provided with a connecting member 229 electrically connected to the electrode 226, and the connecting member 229 and the electrical connector 223 are respectively provided on two plate surfaces of the protection plate body 221. After the battery protection plate 220 and the battery cell 210 are assembled, the first soft plate region 225 is bent to face the connection member 229. Thus, the occupied area of the battery protection plate 220 is small, which is beneficial to improving the capacity of the battery assembly 200. In one embodiment, the connection 229 is a nickel plate that is welded to the electrode 226.

Fig. 11 is a sectional view of the battery assembly 200 of fig. 7 taken along the line C-C. Fig. 12 is an enlarged schematic view of region D in fig. 11. In some embodiments, referring to fig. 12, the bending body 222 includes at least one second soft plate region 227, and the at least one second soft plate region 227 is connected to an edge of the first hard plate region 224 and bent toward the electrode 226. The second flexible board region 227 has flexibility and can be bent toward the electrode 226. In some embodiments, the electrode 226 has a curved structure, and the second flexible board region 227 is bent toward the electrode 226 to fully utilize the space on the side of the rugged electrode 226 facing away from the cell 210.

In some embodiments, with continued reference to fig. 12, the end of the battery cell 210 is provided with a connection portion 211 protruding outward, one side of the connection portion 211 is connected to the electrode 226, the other side of the connection portion 211 forms an abdicating space 212 with the battery cell 210, and the bending body 222 bends toward the electrode 226 and extends to the abdicating space 212. Thus, the bending body 222 can fully utilize the uneven space of the electrode 226 and the space such as the abdicating space 212, and is beneficial to setting the bending body 222 with a larger area, so as to sparsely arrange more electrical elements, further satisfy the requirement of circulating a larger current, and be beneficial to the heat dissipation of the battery protection plate 220. Moreover, the longitudinal size of the protective plate body 221 is reduced, so that the longitudinal size of the battery assembly 200 is reduced, and the capacity of the battery assembly 200 is improved.

In some embodiments, with continued reference to fig. 12, the bending body 222 includes at least one second soft board region 227 and at least one second hard board region 228 connected thereto, the at least one second soft board region 227 is connected to an edge of the first hard board region 224 and bent toward the electrode 226, and the at least one second hard board region 228 extends to the offset space 212. Through the cooperation of the second soft plate region 227 and the second hard plate region 228, not only the bending body 222 can be bent, but also the structural stability of the bending body 222 is facilitated, so as to fully utilize the space near the electrode 226.

In some embodiments, the bend diameter of the bend 222 can range from 0.5mm to 5mm, and can be, for example, 0.5mm, 0.8mm, 1mm, 1.2mm, 1.5mm, 1.7mm, 1.9mm, 2mm, 2.2mm, 2.5mm, 2.7mm, 2.9mm, 3mm, 3.2mm, 3.5mm, 3.7mm, 3.9mm, 4mm, 4.3mm, 4.5mm, 4.8mm, 5mm, and the like. The smaller the bending diameter, the greater the degree of bending of the bending body 222. In one embodiment, the bend diameter between the first stiff plate region 224 and the second stiff plate region 227 is in the range of 0.5-5 mm. In another embodiment, the bend diameter between the second soft plate region 227 and the second hard plate region 228 ranges from 0.5mm to 5 mm. In one embodiment, the bending body 222 includes a second soft plate region 227 connected to the first hard plate region 224, and a second hard plate region 228 connected to the second soft plate region 227. The sides of the first hard plate region 224, the second soft plate region 227 and the second hard plate region 228 may be U-shaped structures sleeved on the electrodes 226. In addition, the bending body 222 may also have other structures, such as regular or irregular structures like arc, semi-circle, etc., which are not specifically limited by the present disclosure.

In some embodiments, a laminate connection is made between the second soft board region 227 and the second hard board region 228. Therefore, the layout area of the components of the bending body 222 is reduced by avoiding the pad connection, the internal resistance of the bending body 222 is increased by avoiding the pad connection, and the effective heat dissipation of the bending body 222 is facilitated.

In some embodiments, the first rigid sheet region 224 is laminated with the bending body 222. Therefore, the layout area of components of the protection plate body 221 is reduced by avoiding the adoption of pad connection, the internal resistance of the protection plate body 221 is increased by avoiding the arrangement of pads, and effective heat dissipation of the protection plate body 221 is facilitated.

In some embodiments, the protection board body 221 and the bending body 222 are provided with electrical components. So, do benefit to the battery protection shield 220 separation cloth to promote the electric current circulation ability, do benefit to the heat dissipation of battery protection shield 220.

Some embodiments of the present disclosure also provide an electronic device including any of the battery assemblies 200 mentioned above.

The electronic device provided by the embodiment of the present disclosure, by using the above battery assembly 200, not only can realize rapid charging and discharging, but also has a higher battery capacity.

In embodiments of the present disclosure, electronic devices include, but are not limited to: mobile phones, tablet computers, ipads, digital broadcast terminals, messaging devices, game consoles, medical devices, fitness devices, personal digital assistants, smart wearable devices, smart televisions, and other smart home products, and the like.

The above embodiments of the present disclosure may be complementary to each other without conflict.

The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims

1. A battery assembly, comprising:

the end part of the battery cell is provided with an electrode; and

2. The battery pack according to claim 1, wherein the first soft plate region extends in a transverse direction from an edge of the first hard plate region, and the bent body extends in a longitudinal direction from the edge of the first hard plate region, and the bent body is bent in the longitudinal direction toward the electrode.

3. The battery pack according to claim 2, wherein the bending body includes at least one second soft plate region connected to an edge of the first hard plate region and bent toward the electrode.

4. The battery assembly according to claim 2, wherein the end of the battery core is provided with a connecting portion protruding outwards, one side of the connecting portion is connected with the electrode, an abdicating space is formed between the other side of the connecting portion and the battery core, and the bending body bends towards the electrode and extends to the abdicating space.

5. The battery pack of claim 4, wherein the bending body comprises at least one second soft plate region and at least one second hard plate region connected with each other, at least one second soft plate region is connected with the edge of the first hard plate region and bent towards the electrode, and at least one second hard plate region extends to the abdicating space.

6. The battery pack according to claim 1, wherein the bent diameter of the bent body is in the range of 0.5-5 mm.

7. The battery pack of claim 1, wherein the first rigid sheet region is in laminated connection with the bend.

8. The battery pack according to claim 1, wherein the protection plate body and the bending body are provided with electrical elements.

9. The battery pack according to claim 1, wherein the first hard plate region is provided with a connecting member electrically connected to the electrode, the connecting member and the electrical connector are respectively provided on two plate surfaces of the protection plate body, and the first soft plate region is bent toward the connecting member.

10. An electronic device, characterized in that the electronic device comprises a battery assembly according to any one of claims 1-9.