CN216793793U

CN216793793U - Battery and electronic device

Info

Publication number: CN216793793U
Application number: CN202220429334.0U
Authority: CN
Inventors: 刘万辉
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-06-21
Anticipated expiration: 2032-02-28

Abstract

The present disclosure relates to a battery and an electronic apparatus, including a cell body (110), a battery protection plate (130), and a metal case (120) encapsulating the cell body (110), the battery (100) further including an encapsulation portion (140) provided at an end portion of the metal case (120) and sealing the battery protection plate (130); the battery protection plate (130) is sealed to one end of the metal case (120) by a sealing portion (140). According to the technical scheme, namely the battery (100) disclosed by the invention, the battery protection plate (130) is arranged on the end face of the metal shell (120) through the packaging part (140), so that the battery protection plate (130) can be better protected, the damage caused by impact is avoided, and the reliability of the battery is improved; meanwhile, the battery protection plate (130) is sealed inside the packaging part (140), and the battery also has the functions of dust prevention and water prevention.

Description

Battery and electronic device

Technical Field

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

Background

In the related art, as the mobile phone is thinned, the safety space of the battery design is gradually compressed, so that a steel shell battery with higher strength and smaller expansion space is gradually selected in the design.

The steel shell battery that uses in the wrist-watch at present, because its whole volume is less, the weight is lighter, and charging power is lower, and the reliability risk is lower. If the battery protection plate is applied to electronic equipment such as mobile phones and tablet computers, the whole size of the battery is large, the battery protection plate is easy to damage, and the reliability of the battery is poor.

SUMMERY OF THE UTILITY MODEL

An object of the present disclosure is to provide a battery to solve technical problems in the related art.

Another object of the present disclosure is to provide an electronic device to which the battery is applied.

In order to achieve the above object, in a first aspect of the present disclosure, a battery is provided, which includes a battery cell body, a battery protection board, and a metal casing enclosing the battery cell body, and the battery further includes an enclosing part disposed at an end of the metal casing and configured to enclose the battery protection board; the battery protection plate is sealed at one end part of the metal shell through the packaging part.

Optionally, the packaging part is formed by an injection molding process, and the battery protection plate is sealed to the end of the metal housing.

Optionally, the metal housing is a steel shell.

Optionally, a projection width of the packaging part on the end face of the metal shell is smaller than or equal to the thickness of the metal shell.

Optionally, the packaging part is formed with a clamping protrusion protruding from the edge of the metal shell, and the clamping protrusion is used for mounting and positioning the battery.

Optionally, the number of the clamping protrusions is multiple, and the clamping protrusions are arranged on the outer side face of the packaging portion at intervals.

Optionally, each side of the packaging part is provided with at least one clamping protrusion along the width direction of the metal shell.

Optionally, the clamping protrusions are symmetrically arranged about a central axis in the width direction of the battery body.

Optionally, the battery protection board comprises a protection board body and a flexible connector connected with the protection board body;

the protection plate body is sealed in the packaging part, and one end, far away from the protection plate body, of the flexible connector extends out of the side face, far away from the metal shell, of the packaging part.

Optionally, the extending direction of the flexible connector is perpendicular to the side of the packaging part far away from the metal shell.

In a second aspect of the present disclosure, an electronic device is provided, which includes a middle frame and the battery of the first aspect of the present disclosure;

the battery is fixedly arranged on the middle frame.

Optionally, the center is including being used for holding the installation department of battery, encapsulation portion be formed with the protrusion in the joint at metal casing edge is protruding, the lateral wall of installation department is equipped with the joint recess that corresponds with this joint arch, the protruding cartridge of joint in the joint recess.

According to the technical scheme, namely the battery protection board is arranged on the end face of the metal shell through the packaging part, so that the battery protection board can be better protected, damage caused by impact is avoided, and the reliability of the battery is improved; simultaneously, the battery protection shield is sealed inside this encapsulation portion, and this battery still has dustproof waterproof function.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a block diagram of a battery provided in some exemplary embodiments of the present disclosure;

fig. 2 is a front view of a battery provided by some exemplary embodiments of the present disclosure;

FIG. 3 is a sectional view based on A-A in FIG. 2;

FIG. 4 is an enlarged view of a portion D in FIG. 3;

FIG. 5 is an enlarged view of the portion B in FIG. 2;

fig. 6 is an exploded view of a battery and a middle frame provided by some exemplary embodiments of the present disclosure;

FIG. 7 is a schematic illustration of an installation of a battery and a center frame provided by some exemplary embodiments of the present disclosure;

fig. 8 is an enlarged view of a portion E in fig. 7.

Description of the reference numerals

100-a battery; 110-a cell body; 120-a metal housing; 130-battery protection plate; 131-a protective plate body; 132-a flexible connector; 140-a package; 141-a snap projection; 200-middle frame; 210-a mounting portion; 220-clamping groove.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, use of directional words such as "upper, lower, left, and right" generally means that the directions of the drawing of the corresponding drawing are defined with reference to the drawing direction, "inner and outer" means that the inner and outer of the outline of the corresponding part are defined, "far and near" means that the corresponding structure or the corresponding part is far away from or another structure or part, and "length direction" means the up and down directions of the drawing shown in fig. 2; "width direction" means a direction perpendicular to the length direction (the left-right direction of the drawing shown in fig. 2); in addition, it is to be noted that terms such as "first, second, and the like are used for distinguishing one element from another.

As shown in fig. 1 to 8, in a first aspect of the present disclosure, a battery 100 is provided, which includes a cell body 110, a battery protection plate 130, and a metal casing 120 enclosing the cell body 110, and the battery 100 further includes an enclosing part 140 disposed at an end of the metal casing 120 and used for sealing the battery protection plate 130; the battery protection plate 130 is sealed at one end of the metal case 120 by the packing part 140.

Through the above technical solution, that is, in the battery 100 of the present disclosure, the battery protection plate 130 is disposed on the end surface of the metal shell 120 through the packaging part 140, so that the battery protection plate 130 can be better protected, damage due to impact is avoided, and reliability of the battery 100 is improved; meanwhile, the battery protection plate 130 is sealed inside the packaging part 140, and the battery 100 also has the functions of dust prevention and water prevention.

It should be noted that the packing part 140 may be configured in any manner, and in some embodiments of the present disclosure, the packing part 140 may be implemented by an injection molding process, so as to seal the battery protection plate 130 at one end of the metal housing 120 and fixedly connect with the metal housing 120. The material of the sealing portion 140 includes, but is not limited to, epoxy resin, and other materials disclosed in the related art may be used for injection molding. Compared with the scheme that the battery protection plate 130 is connected to the end of the metal shell 120 in a bonding manner in the related art, in the disclosure, when the battery 100 is impacted, the packaging part 140 can bear a certain stress, so that the battery protection plate 130 is prevented from being damaged, the battery 100 is prevented from being out of service, and the reliability of the battery 100 is improved.

In some embodiments of the present disclosure, the metal shell 120 may be a steel shell, and it is understood that the metal shell 120 may also be made of other metal or alloy materials disclosed in the related art, such as aluminum alloy, magnesium alloy, and the like.

In order to match the size of the metal case 120, it is avoided that the size (particularly, the thickness) of the electronic device to which the battery 100 is applied is affected by the large volume of the battery 100 due to the oversize of the packaging part 140. As shown in fig. 2, 3 and 4, in some embodiments of the present disclosure, a projection width of the encapsulation part 140 on the end surface of the metal shell 120 is less than or equal to the thickness of the metal shell 120.

The size of the encapsulating portion 140 is adapted to the size of the end face of the metal housing 120 at least in the thickness direction of the metal housing 120. It can be understood that, in the thickness direction of the metal shell 120, the projection of the packaging part 140 in the end face of the metal shell 120 is located in the end face, that is, the packaging part 140 occupies a certain space in the length direction of the metal shell 120, and does not occupy an excessive space in the thickness direction of the metal shell 120, which is beneficial to the light and thin of the electronic device to which the battery 100 is applied.

In order to facilitate the positioning problem when the battery 100 is mounted on the middle frame 200, as shown in fig. 2 and 5, in some embodiments of the present disclosure, the packaging part 140 is formed with a clamping protrusion 141 protruding from the edge of the metal housing 120, and the clamping protrusion 141 is used for mounting and positioning the battery 100. The middle frame 200 is provided with a clamping groove 220 corresponding to the clamping protrusion 141, when the clamping protrusion 141 is inserted into the clamping groove 220, the battery 100 is just at the installation position of the middle frame 200, so that the battery 100 can be conveniently installed by a worker, and the installation efficiency is prevented from being influenced by repeated operation of the worker.

The number of the clamping protrusions 141 is plural, and the plurality of clamping protrusions 141 are arranged on the outer side surface of the packaging part 140 at intervals. The plurality of clamping protrusions 141 may be located on the same side of the metal shell 120 in the width direction, or may be distributed on both sides. In order to realize the matching and positioning with the clamping protrusion 141, the middle frame 200 may be provided with clamping grooves 220 corresponding to the clamping protrusions 141 one to one, so as to realize the correct installation of the battery 100 after the clamping protrusions 141 are inserted into the clamping grooves 220.

In some embodiments, at least one catching protrusion 141 is provided on each side of the packing part 140 in the width direction of the metal housing 120. It should be noted that, each side may be provided with a clamping protrusion 141, and the clamping protrusion 141 extends in the width direction along the direction away from the battery protection board 130 to exceed the side surface of the metal casing 120, when actually installed, the metal casing 120 and the portion of the packaging part 140 in the end surface of the metal casing 120 are all installed in the installation part 210 of the middle frame 200, the side of the installation part 210 is provided with a clamping groove 220 corresponding to the clamping protrusion 141, and the clamping protrusion 141 is inserted into the clamping groove 220.

As shown in fig. 2, in some embodiments of the present disclosure, the catching protrusions 141 are symmetrically disposed about a central axis in the width direction of the metal housing 120. In the width direction, each side of the packaging part 140 is provided with one clamping protrusion 141, and the two clamping protrusions 141 are symmetrically arranged about the central axis. Of course, an asymmetrical arrangement is also possible, and positioning can likewise be achieved.

In another embodiment, in the width direction, one side of the encapsulation portion 140 may be provided with two or more clamping protrusions 141 arranged at intervals, the other side of the encapsulation portion 140 may be provided with one or more clamping protrusions 141, and the clamping protrusions 141 on both sides may be arranged symmetrically or asymmetrically with respect to the central axis, which is not particularly limited in this disclosure.

In some embodiments of the present disclosure, the battery protection plate 130 includes a protection plate body 131 and a flexible connector 132 connected with the protection plate body 131; the protection plate body 131 is sealed in the packaging part 140, so that the effects of avoiding impact damage and preventing dust and water can be achieved, one end, far away from the protection plate body 131, of the flexible connector 132 extends out from the side face, far away from the metal shell 120, of the packaging part 140 and is used for being connected with a main circuit board of electronic equipment and used for charging the battery 100 and supplying power to the electronic equipment, and the flexible connector 132 directly extends out from the side face of the packaging part 140, so that compared with the structural form that the flexible connector is connected with the main circuit board after being bent in the related art, the length of the flexible connector is shorter, the impedance can be further reduced, and the high-power charging of the battery 100 is facilitated.

As shown in fig. 2 and 4, in some embodiments of the present disclosure, the extending direction of the flexible connector 132 is perpendicular to the side of the encapsulating portion 140 away from the metal housing 120, so as to use the flexible connector 132 with a shorter length to connect the battery protection board 130 with the main circuit board, and further reduce the impedance in the connection line to meet the charging requirement of higher power.

As shown in fig. 6 to 8, in a second aspect of the present disclosure, an electronic device is provided, which includes a middle frame 200 and the battery 100 according to the first aspect of the present disclosure; the battery 100 is fixedly mounted on the middle frame 200. Because the electronic device comprises the battery 100, when the electronic device is dropped or impacted, the battery protection plate 130 of the battery 100 is sealed on the end face of the metal shell 120 by the packaging part 140, so that the electronic device can bear certain impact without being damaged, the failure of the battery 100 is avoided, and the use reliability of the electronic device is improved.

It should be noted that the electronic device mentioned in the present disclosure may be a mobile phone, and may also be extended to a tablet computer, a wearable device, and the like.

As shown in fig. 6 and 8, in some embodiments, the middle frame 200 includes a mounting portion 210 for accommodating the battery 100, the packaging portion 140 is formed with a clamping protrusion 141 protruding from an edge of the metal housing 120, a side wall of the mounting portion 210 is provided with a clamping groove 220 corresponding to the clamping protrusion 141, and the clamping protrusion 141 is inserted into the clamping groove 220, so as to achieve precise positioning when the battery 100 is mounted. Meanwhile, the metal case 120 may be adhered to the bottom wall of the mounting portion 210 using a double-sided adhesive tape.

The battery 100 and the electronic device provided by the embodiment of the disclosure at least have the following advantages:

1. the battery 100 forms the packaging part 140 through an injection molding process, and the battery protection plate 130 is sealed on the end surface of the metal shell 120, so that the battery protection plate 130 can be protected, and meanwhile, the dustproof and waterproof effects are achieved.

2. The sealing part 140 is formed with a locking protrusion 141, which can play a positioning role when the battery 100 is connected with the middle frame 200.

3. Considering that the packaging part 140 has a certain fixing function, the flexible connector 132 can directly extend from the side of the packaging part 140 away from the metal shell 120, so as to shorten the connection distance with the main circuit board and reduce the impedance, thereby adapting to the requirement of high-power charging.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the above embodiments, the various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations will not be further described in the present disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A battery, characterized by comprising a cell body (110), a battery protection plate (130), and a metal casing (120) enclosing the cell body (110); the battery (100) further comprises a packaging part (140) which is arranged at the end part of the metal shell (120) and is used for sealing the battery protection plate (130);

the battery protection plate (130) is sealed at one end of the metal shell (120) through the packaging part (140).

2. The battery according to claim 1, wherein the packing part (140) is molded by an injection molding process and seals the battery protection plate (130) to an end of the metal case (120).

3. The battery according to claim 1, wherein the metal case (120) is a steel can.

4. The battery according to claim 1, wherein a projection width of the encapsulating portion (140) on the end face of the metal case (120) is equal to or less than a thickness of the metal case (120).

5. The battery according to claim 1, wherein the packaging part (140) is formed with a clamping protrusion (141) protruding from the edge of the metal shell (120), and the clamping protrusion (141) is used for installing and positioning the battery (100).

6. The battery according to claim 5, wherein the number of the clamping protrusions (141) is multiple, and the clamping protrusions (141) are arranged on the outer side surface of the packaging part (140) at intervals.

7. The battery according to claim 6, wherein at least one of the snap protrusions (141) is provided on each side of the packing part (140) in a width direction of the metal case (120).

8. The battery according to claim 7, wherein the catching protrusion (141) is symmetrically disposed about a central axis (C) in a width direction of the metal case (120).

9. The battery according to any one of claims 1-8, wherein the battery protection plate (130) comprises a protection plate body (131) and a flexible connector (132) connected to the protection plate body (131);

the protection plate body (131) is sealed in the packaging part (140), and one end, far away from the protection plate body (131), of the flexible connector (132) extends out of the side face, far away from the metal shell (120), of the packaging part (140).

10. The battery according to claim 9, characterized in that the flexible connector (132) extends perpendicular to the side of the encapsulation (140) remote from the metal casing (120).

11. An electronic device, characterized in that the electronic device comprises a middle frame (200) and a battery (100) according to any of claims 1-10;

the battery (100) is fixedly arranged on the middle frame (200).

12. The electronic device according to claim 11, wherein the middle frame (200) comprises a mounting portion (210) for accommodating the battery (100), the packaging portion (140) is formed with a clamping protrusion (141) protruding from the edge of the metal shell (120), a clamping groove (220) corresponding to the clamping protrusion (141) is formed on a side wall of the mounting portion (210), and the clamping protrusion (141) is inserted into the clamping groove (220).