CN216213895U

CN216213895U - Fixing structure for battery and electronic device

Info

Publication number: CN216213895U
Application number: CN202122749714.0U
Authority: CN
Inventors: 郗帅鹏; 韩玲莉
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-04-05
Anticipated expiration: 2031-11-10

Abstract

The utility model relates to a fixed knot constructs and electronic equipment for battery, fixed knot constructs including mount pad (1), auxiliary film (2) and bonding piece (3) that have electric conductivity, and auxiliary film (2) are used for the cladding and are fixed in the surface of battery (100), and auxiliary film (2) include conducting layer (21), and battery (100) have stationary condition and dismantlement state stationary condition, bonding piece (3) bond in conducting layer (21) with between mount pad (1), battery (100) are fixed in mount pad (1) the dismantlement state, mount pad (1) with form the electric field between conducting layer (21), bonding piece (3) are in lose viscidity under the electric field effect, with conducting layer (21) with mount pad (1) separation. Through the technical scheme, the battery can be detached and reused, and the cost of after-sale and maintenance is reduced.

Description

Fixing structure for battery and electronic device

Technical Field

The present disclosure relates to the field of electronic device technologies, and in particular, to a fixing structure for a battery and an electronic device.

Background

The 3C electronic products are short for computers, communications and consumer electronics, such as computers, tablet computers, mobile phones or digital audio players. In 3C consumer electronics, the battery is fixed mainly in detachable and non-detachable ways, wherein the detachable way is usually to fix the battery by easy-pulling glue, easy-tearing glue or alcohol glue, and the non-detachable way is usually to fix the battery by direct bonding with double-sided adhesive tape.

Disassembly of the battery is required for after-market and factory maintenance. However, in the existing detachable mode, the shape of the pop-top glue needs to be designed into a long strip shape, and the flexibility of design requirements is lacked; the easy-to-tear sticker does not support fixing of a high-capacity battery, and when the capacity and the weight of the battery are increased to a certain value, the fixing reliability of the easy-to-tear sticker to the battery is reduced; the alcohol glue has poor disassembly consistency, the infiltration of alcohol and glue cannot be controlled during disassembly, and the problem that the glue cannot be disassembled due to large-area non-contact with the alcohol exists.

SUMMERY OF THE UTILITY MODEL

An object of the present disclosure is to provide a fixing structure for a battery and an electronic apparatus, which can realize detachment of the battery and reuse of the battery, reducing costs after sale and maintenance.

In order to achieve the above object, the present disclosure provides a fixing structure for a battery, the fixing structure including a mounting seat having conductivity, an auxiliary film, and an adhesive member, the auxiliary film being used to cover and fix a surface of the battery, the auxiliary film including a conductive layer, the battery having a fixing state in which the adhesive member is adhered between the conductive layer and the mounting seat, the battery being fixed to the mounting seat, and a detaching state in which an electric field is formed between the mounting seat and the conductive layer, the adhesive member losing adhesiveness under the action of the electric field to be separated from the conductive layer and the mounting seat.

Optionally, the bonding member includes an adhesive layer for bonding the conductive layer and the mounting base, and is capable of losing its adhesiveness under the action of the electric field to separate the conductive layer and the mounting base.

Optionally, the bonding piece includes the substrate layer, the adhesive layer includes first adhesive layer and second adhesive layer, two surfaces that the substrate layer is relative have covered respectively first adhesive layer with second adhesive layer, first adhesive layer with second adhesive layer be used for respectively with the conducting layer with the mount pad bonds.

Optionally, the substrate layer is a PET substrate layer or a non-woven fabric substrate layer.

Optionally, the auxiliary film includes an insulating layer and a first adhesive layer, the insulating layer is laminated on the inner surface of the conductive layer and is adhered to the surface of the battery through the first adhesive layer.

Optionally, the auxiliary film further comprises a second glue layer, and the insulating layer and the conductive layer are bonded together through the second glue layer.

Optionally, the mounting seat includes a mounting plate and side plates connected to both ends of the mounting plate, and the mounting plate and the side plates together form a mounting space for accommodating the battery.

Optionally, the auxiliary film covers the side surfaces of the battery, and two ends of the auxiliary film are respectively overlapped with the side surfaces of the battery far away from the mounting seat, and the side surfaces of the battery far away from the mounting seat are partially exposed between the two ends of the auxiliary film.

On the basis of the technical scheme, the present disclosure further provides an electronic device, which includes a battery, a middle frame and the fixing structure for the battery, wherein the battery is fixed to the middle frame through the fixing structure, and the middle frame is a mounting seat in the fixing structure.

Optionally, the middle frame is a metal piece.

Through the technical scheme, the fixing structure for the battery can realize the installation and the disassembly between the battery and the installation seat, in the fixed state, the battery is reliably bonded on the mounting seat through the bonding piece, has higher fixing reliability, in a disassembly state, voltage is applied to the mounting seat and the conductive layer of the auxiliary film to form an electric field, under the action of the electric field, ions in the adhesive member move, the interface of the adhesive member, the conductive layer and the mounting seat is changed due to the movement of the ions, and the adhesiveness is lost, so that the adhesive piece is separated from the conductive layer and the mounting seat, thereby detaching the battery from the mounting seat, the battery is not damaged in the disassembly process, the reusability of the battery is high, and the risk of the disassembly process is small, so that after sale and factory maintenance are facilitated, and the problem of battery leakage combustion caused by forced disassembly of the battery is avoided. In addition, the shape of the bonding piece is not specially required, the design is flexible, the interface of the bonding piece is not bonded in the dismounting process, the surfaces of the conducting layer and the mounting seat are free from residual glue, and the battery can be fixedly mounted on the mounting seat again by replacing the new bonding piece, so that the repeated use of the battery can be realized, and the cost of after-sale and maintenance of the battery can be reduced.

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 schematic structural view of a fixing structure for a battery provided in an embodiment of the present disclosure;

fig. 2 is a schematic structural view of an auxiliary film in a fixing structure for a battery provided in an embodiment of the present disclosure;

fig. 3 is a schematic structural view of an adhesive member in a fixing structure for a battery according to an embodiment of the present disclosure;

fig. 4 is a schematic structural view of an adhesive member in a fixing structure for a battery according to an embodiment of the present disclosure in an electric field.

Description of the reference numerals

1-mounting a base; 11-a mounting plate; 12-side plates; 2-an auxiliary membrane; 21-a conductive layer; 22-an insulating layer; 23-a first glue layer; 24-a second glue layer; 3-bonding the piece; 31-a substrate layer; 32-a first adhesive layer; 33-a second adhesive layer; 100-cell.

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, the term "inner" in the "inner surface of the conductive layer" is defined on the basis of the battery, and the orientation toward the battery is "inner" and "outer" on the contrary. In addition, the terms "first," "second," and the like, as used herein, are intended to distinguish one element from another, and are not necessarily sequential or significant. Furthermore, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements, unless otherwise explained. The foregoing definitions are provided to illustrate and describe the present disclosure only and should not be construed to limit the present disclosure.

According to a specific embodiment of the present disclosure, referring to fig. 1 to 4, there is provided a fixing structure for a battery, the fixing structure including a mount 1 having conductivity, an auxiliary film 2 and an adhesive member 3, the auxiliary film 2 being for wrapping and fixing on a surface of the battery 100, the auxiliary film 2 including a conductive layer 21, the battery 100 having a fixing state in which the adhesive member 3 is adhered between the conductive layer 21 and the mount 1, the battery 100 being fixed to the mount 1, and a detaching state in which an electric field is formed between the mount 1 and the conductive layer 21, the adhesive member 3 losing adhesiveness under the effect of the electric field to be separated from the conductive layer 21 and the mount 1.

Through the technical scheme, the fixing structure for the battery provided by the disclosure can realize the installation and the disassembly between the battery 100 and the installation seat 1, in the fixed state, the battery 100 is reliably adhered to the mount base 1 by the adhesive member 3, with high fixing reliability, in the disassembled state, by applying a voltage to the mount 1 and the conductive layer 21 of the auxiliary film 2 to form an electric field, under the action of the electric field, ions in the adhesive member 3 are subjected to migration movement, the interface of the adhesive member 3, the conductive layer 21 and the mounting base 1 loses viscosity due to the change of the movement of the ions, the adhesive member 3 is separated from the conductive layer 21 and the mount 1, so that the battery 100 is detached from the mount 1, no damage is caused to the battery 100 during the disassembly process, the reusability of the battery 100 is high and the risk of the disassembly process is small, so as to facilitate after-sale and factory maintenance and avoid the problem of electrolyte leakage and burning of the battery 100 caused by forcibly disassembling the battery 100. In addition, the shape of the adhesive member 3 is not required, the design is flexible, the interface of the adhesive member 3 is not adhered during the detachment process, no adhesive residue exists on the surfaces of the conductive layer 21 and the mounting seat 1, and the battery 100 can be fixedly mounted on the mounting seat 1 again by replacing the new adhesive member 3, so that the battery 100 can be reused, and the after-sale and maintenance costs of the battery 100 can be reduced.

In the specific embodiment provided by the present disclosure, the adhesive member 3 may include an adhesive layer for adhering the conductive layer 21 and the mounting base 1, and may lose its adhesiveness under the action of an electric field to separate the conductive layer 21 and the mounting base 1. Referring to fig. 3, when positive and negative ions in the adhesive layer are uniformly dispersed in the adhesive layer and an electric field is formed by applying positive and negative voltages to the conductive layer 21 and the mounting base 1, respectively, as shown in fig. 4, the positive and negative ions in the adhesive layer undergo a migration motion under the action of the electric field, resulting in a change in the state of the surface of the adhesive member 3, thereby destroying the viscosity of the adhesive layer, and in this state, the adhesive member 3 can be separated from the conductive layer 21 and the mounting base 1, thereby achieving detachment of the battery 100 from the mounting base 1. Further, it is also possible that the electric field is formed by applying a negative voltage and a positive voltage to the conductive layer 21 and the mount 1, respectively, and the present disclosure does not specifically limit this.

In the specific embodiment provided in the present disclosure, in order to facilitate the formation of the adhesive layer, referring to fig. 3 and 4, the bonding member 3 may include a substrate layer 31, the adhesive layer includes a first adhesive layer 32 and a second adhesive layer 33, two opposite surfaces of the substrate layer 31 are respectively covered with the first adhesive layer 32 and the second adhesive layer 33, and the first adhesive layer 32 and the second adhesive layer 33 are respectively used for bonding with the conductive layer 21 and the mounting base 1. As shown in fig. 4, when an electric field is formed by applying a positive voltage and a negative voltage to the conductive layer 21 and the mount 1, respectively, negative ions in the first adhesive layer 32 are concentrated and distributed on the surface of the first adhesive layer 32 facing the conductive layer 21, positive ions in the first adhesive layer 32 are concentrated and distributed on the surface of the first adhesive layer 32 facing the base material layer 31, negative ions in the second adhesive layer 33 are concentrated and distributed on the surface of the second adhesive layer 33 facing the base material layer 31, and positive ions in the second adhesive layer 33 are concentrated and distributed on the surface of the second adhesive layer 33 facing the mount 1. In order to distinguish between positive and negative ions, the white circles represent negative ions and the black circles represent positive ions in fig. 4.

The first adhesive layer 32 and the second adhesive bonding layer may be formed by any suitable adhesive system, such as acrylic adhesives (e.g., acrylate pressure sensitive adhesives, acrylate functional adhesives, etc.), and the disclosure is not limited thereto.

In the specific embodiment provided in the present disclosure, the substrate layer 31 may be a PET (Polyethylene terephthalate, which is a condensation polymer of terephthalic acid and ethylene glycol) substrate layer or a nonwoven fabric substrate layer. Furthermore, the substrate layer 31 may also be any other suitable substrate layer, and the disclosure is not particularly limited thereto.

In the specific embodiment provided by the present disclosure, referring to fig. 2, the auxiliary film 2 may include an insulating layer 22 and a first glue layer 23, where the insulating layer 22 is laminated on an inner surface of the conductive layer 21 for protecting the battery 100, and the insulating layer 22 is adhered to a surface of the battery 100 through the first glue layer 23 to fix the auxiliary film 2 to the battery 100. The conductive layer 21 may be a metal foil, a conductive polymer film, or the like, which is not particularly limited in this disclosure. In addition, the insulating layer 22 may be formed of PET (Polyethylene terephthalate, which is a condensation polymer of terephthalic acid and ethylene glycol) or PI (Polyimide), which is not particularly limited by the present disclosure.

The auxiliary film 2 may further include a second adhesive layer 24, and the insulating layer 22 and the conductive layer 21 are adhered together by the second adhesive layer 24 to fix the insulating layer 22 and the conductive layer 21.

In the specific embodiments provided by the present disclosure, mount 1 may be configured in any suitable manner. Alternatively, referring to fig. 1, the mount 1 may include a mounting plate 11 and side plates 12 connecting both ends of the mounting plate 11, the mounting plate 11 and the side plates 12 together forming a mounting space for accommodating the battery 100, and the battery 100 is fixedly mounted on the mounting plate 11 by the adhesive member 3.

In the specific embodiment provided by the present disclosure, referring to fig. 1, the auxiliary film 2 covers the side surface of the battery 100, and two ends of the auxiliary film 2 are respectively overlapped with the side surface of the battery 100 away from the mount base 1 so as to apply voltage to the conductive layer 21 in the auxiliary film 2, and the side surface of the battery 100 away from the mount base 1 is partially exposed between the two ends of the auxiliary film 2, that is, the auxiliary film 2 does not completely cover the side surface of the battery 100 away from the mount base 1, so that a space for the expansion use of the battery 100 can be left.

On the basis of the above technical solution, the present disclosure further provides an electronic device, which includes a battery 100, a middle frame and the above fixing structure for the battery, the battery 100 is fixed to the middle frame through the fixing structure, wherein the mounting seat 1 in the fixing structure may be fixedly mounted with the middle frame to mount the battery 100 to the middle frame, and it is also possible that the middle frame may be the mounting seat 1 in the fixing structure.

The middle frame may be made of any material having conductivity, and the present disclosure is not limited thereto. In the specific embodiments provided in the present disclosure, the middle frame may be a metal piece.

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 foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

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 fixing structure for a battery, characterized in that the fixing structure comprises a mounting base (1) having conductivity, an auxiliary film (2) and an adhesive member (3), the auxiliary film (2) is used for coating and fixing on the surface of the battery (100), the auxiliary film (2) comprises a conductive layer (21), the battery (100) has a fixing state and a detaching state, in the fixing state, the adhesive member (3) is adhered between the conductive layer (21) and the mounting base (1), the battery (100) is fixed to the mounting base (1), in the detaching state, an electric field is formed between the mounting base (1) and the conductive layer (21), and the adhesive member (3) loses adhesiveness under the action of the electric field to separate from the conductive layer (21) and the mounting base (1).

2. The fixing structure for a battery according to claim 1, wherein the adhesive member (3) includes an adhesive layer for adhering the conductive layer (21) and the mount (1) and capable of losing its adhesiveness under the action of the electric field to separate the conductive layer (21) and the mount (1).

3. The fixing structure for a battery according to claim 2, wherein the adhesive member (3) includes a base material layer (31), the adhesive layer includes a first adhesive layer (32) and a second adhesive layer (33), two opposite surfaces of the base material layer (31) are respectively covered with the first adhesive layer (32) and the second adhesive layer (33), and the first adhesive layer (32) and the second adhesive layer (33) are respectively used for bonding with the conductive layer (21) and the mounting base (1).

4. The fixing structure for a battery according to claim 3, wherein the base material layer (31) is a PET base material layer or a nonwoven fabric base material layer.

5. The fixing structure for a battery according to claim 1, wherein the auxiliary film (2) comprises an insulating layer (22) and a first adhesive layer (23), the insulating layer (22) being laminated to an inner surface of the conductive layer (21) and being adhered to a surface of the battery (100) by the first adhesive layer (23).

6. The fixing structure for a battery according to claim 5, wherein the auxiliary film (2) further comprises a second adhesive layer (24), and the insulating layer (22) and the conductive layer (21) are bonded together by the second adhesive layer (24).

7. The fixing structure for a battery according to any one of claims 1 to 6, wherein the mount base (1) includes a mounting plate (11) and a side plate (12) connecting both ends of the mounting plate (11), the mounting plate (11) and the side plate (12) together forming a mounting space for accommodating the battery (100).

8. The fixing structure for a battery according to claim 7, wherein the auxiliary film (2) covers side surfaces of the battery (100), and both ends of the auxiliary film (2) overlap side surfaces of the battery (100) away from the mount base (1), respectively, and a portion of the side surfaces of the battery (100) away from the mount base (1) is exposed between both ends of the auxiliary film (2).

9. An electronic device comprising a battery (100) and a middle frame, characterized in that the electronic device further comprises a fixing structure for a battery according to any one of claims 1-8, by means of which the battery (100) is fixed to the middle frame, wherein the middle frame is a mounting seat (1) in the fixing structure.

10. The electronic device of claim 9, wherein the middle frame is a metal piece.