CN210110885U - Battery protection structure, battery pack and electronic device - Google Patents
Battery protection structure, battery pack and electronic device Download PDFInfo
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- CN210110885U CN210110885U CN201921241449.1U CN201921241449U CN210110885U CN 210110885 U CN210110885 U CN 210110885U CN 201921241449 U CN201921241449 U CN 201921241449U CN 210110885 U CN210110885 U CN 210110885U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
A battery protection structure comprising: the protection plate comprises a folding part, a body part and a connecting part, wherein the connecting part is connected with the folding part and the body part; a protective film disposed in the protective sheet, the protective film comprising: a base layer comprising a first surface and a second surface opposite the first surface; the first surface is connected with the folding part through the first adhesive layer; and the second adhesive layer is arranged on the second surface. The battery protection structure does not easily damage the battery. The application also provides a battery pack applying the battery protection structure and an electronic device applying the battery pack.
Description
Technical Field
The present disclosure relates to the field of batteries, and particularly to a battery protection structure and a battery pack using the same.
Background
Currently, lithium ion batteries are widely used in portable electronic devices such as mobile phones, digital cameras, and portable computers by virtue of their advantages of high energy density, long cycle life, and no memory effect, and have a wide application prospect in large and medium-sized electric devices such as electric vehicles, electric bicycles, and large and medium-sized electric vehicles and energy storage facilities, and become a key to solve global problems such as energy crisis and environmental pollution.
Especially in the cell-phone trade, require higher to lithium ion battery's energy density, built-in battery compares in external battery, and the space size that occupies is still less, and energy density also has very big promotion, for guaranteeing that built-in battery has certain puncture-proof ability, adopts the screening glass cladding battery. However, the battery in the protective sheet is easily moved to damage the battery when external force is applied thereto, or is difficult to detach the battery to easily damage the battery.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a battery protection structure that is less likely to damage the battery.
A battery protection structure comprising:
the protection plate comprises a folding part, a body part and a connecting part, wherein the connecting part is connected with the folding part and the body part;
a protective film disposed in the protective sheet, the protective film comprising:
a base layer comprising a first surface and a second surface opposite the first surface;
the first surface is connected with the folding part through the first adhesive layer; and
and the second adhesive layer is arranged on the second surface.
Further, the viscosity of the first adhesive layer is greater than the viscosity of the second adhesive layer.
Further, the protective sheet is a steel sheet.
Further, the first surface comprises a first area and a second area connected with the first area, and the first adhesive layer is arranged in the first area; one part of the second area is arranged on the folding part, and the other part of the second area is positioned on one side of the folding part far away from the connecting part; the second surface comprises a third area and a fourth area connected with the third area, and the second adhesive layer is arranged in the third area.
Further, the second region includes a first sub-region and a second sub-region, the first sub-region and the second sub-region are sequentially connected, the first sub-region is disposed on the entire side of the folded portion away from the connecting portion, and the second sub-region is disposed on a part away from the first region from the first sub-region.
Furthermore, the folding part comprises a first folding part and a second folding part; the connecting part comprises a first connecting part and a second connecting part; the first folding part, the first connecting part, the body, the second connecting part and the second folding part are connected in sequence; the protective film is arranged on the first folding part and the second folding part.
A battery pack comprises one or more batteries and further comprises the battery protection structure, a containing cavity is formed among the folding portion, the connecting portion and the body portion, the batteries are contained in the containing cavity, and the second adhesive layer of the protection film is bonded to the batteries to fix the batteries.
Furthermore, the folding part comprises a first folding part and a second folding part; the connecting part comprises a first connecting part and a second connecting part; the first folding part, the first connecting part, the body, the second connecting part and the second folding part are connected in sequence; the protective film is arranged on the first folding part and the second folding part.
Further, the base layer of the protective film disposed on the first folded portion is connected to the base layer of the protective film disposed on the second folded portion by a wire.
An electronic device comprising a battery assembly as described above.
This application battery protection architecture, because battery protection architecture's third region is equipped with the second glue film, the second glue film is in battery protection architecture accepts bond when the battery the surface of battery, thereby will the battery is fixed in among the battery protection architecture. Furthermore, part of the substrate layer is exposed from one side, far away from the connecting part, of the turnover part, and no adhesive layer is arranged on the second sub-area, so that a user can conveniently use the second sub-area to separate the battery protection structure from the battery, and the base layer has better detachability. Furthermore, the steel sheet is used as the protection sheet, so that the battery protection structure has higher mechanical strength and good anti-puncture effect. Further, the adhesiveness of the first adhesive layer is greater than the adhesiveness of the second adhesive layer, so that the adhesive force between the first adhesive layer and the protective sheet is greater than the adhesive force between the second adhesive layer and the battery, thereby preventing a phenomenon in which the battery has not been taken out of the battery protection structure but the protective film has been separated from the protective sheet. Further, in the battery module, when the first protection film is connected with the second protection film through a wire, the phenomenon that the basal layer without the glue layer is turned up can be avoided.
Drawings
Fig. 1 is a schematic perspective view of a battery protection structure according to an embodiment of the present application.
Fig. 2 is another state view schematically illustrating the battery protection structure shown in fig. 1.
Fig. 3 is a perspective view of a battery assembly according to an embodiment of the present disclosure.
Fig. 4 is another state diagram of the battery assembly shown in fig. 3.
Description of the main elements
Connecting part 15
First adhesive layer 33
Second adhesive layer 35
Fourth region 385
First folded part 11a
Second folded part 11b
Second connecting portion 15b
The first protection film 30a
Second protective film 30b
Accommodating cavity 101
The following detailed description will further illustrate the present application in conjunction with the above-described figures.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1 to 2, the battery protection structure 100 includes a protection sheet 10 and a protection film 30 disposed on the protection sheet 10. The protective sheet 10 includes a folded portion 11, a body portion 13, and a connecting portion 15. Wherein the connecting portion 15 is located between the folded portion 11 and the main body portion 13. The protection film 30 includes a base layer 31, a first glue layer 33 and a second glue layer 35. The base layer 31 includes a first surface 36 and a second surface 38 opposite the first surface 36. The first adhesive layer 33 is disposed on the first surface 36 to bond the first surface 36 and the folded portion 11. The second glue layer 35 is disposed on the second surface 38.
The first surface 36 includes a first region 361 and a second region (363, 365) connecting the first region 361. In this embodiment, the second region includes a first sub-region 363 and a second sub-region 365. The first region 361, the first sub-region 363, and the second sub-region 365 are connected in sequence.
The first glue layer 33 is disposed in the first region 361. The first sub-region 363 of the second region (363, 365) is disposed on the folded portion 11, the second sub-region 365 is located on a side of the folded portion 11 away from the connecting portion 15, and the first sub-region 363 and the second sub-region 365 are not provided with a glue layer.
The second surface 38 includes a third region 381 and a fourth region 385 connected to the third region 381.
In this embodiment, the third region 381 faces the first region 361 and the first sub-region 363, and the fourth region 385 faces the second sub-region 365. The second glue layer 35 is disposed in the third region 381, and the fourth region 383 is not provided with a glue layer.
In some embodiments, the third region 381 and the region opposite to the first sub-region 363 may not be provided with a glue layer.
Preferably, the adhesiveness of the first adhesive layer 33 is greater than that of the second adhesive layer 35.
In some embodiments, the first sub-region 363 may be disposed on the entire side of the folded portion 11 away from the connecting portion 15. In some embodiments, the second sub-region 365 can be disposed in a local portion of the first sub-region 363 away from the first region 361.
In some embodiments, the first sub-region 363 may be further disposed on a part of the folded portion 11 away from the connecting portion 15. In some embodiments, the second sub-region 365 can also be disposed on the entire side of the first sub-region 363 away from the first region 361.
In one embodiment, the protective sheet 10 may include two folded portions 11 and two connecting portions 15. Wherein, the two folding parts 11 are respectively a first folding part 11a and a second folding part 11 b; the two connecting portions 15 are a first connecting portion 15a and a second connecting portion 15b, respectively. The first folded portion 11a, the first connecting portion 15a, the body portion 13, the second connecting portion 15b, and the second folded portion 11b are connected in this order. The first connecting portion 15a is bendable compared to the main body portion 13 and the first folded portion 11a, and the second connecting portion 15b is bendable compared to the main body portion 13 and the second folded portion 11 b.
The battery protection structure 100 may include two protection films 30, a first protection film 30a and a second protection film 30 b. The first protection film 30a is disposed on the first folded part 11a and extends from a side of the first folded part 11a away from the first connection part 15 a. The second protective film 30b is disposed on the second folded portion 11b and extends from a side of the second folded portion 11b away from the second connecting portion 15 b.
In some embodiments, the protective sheet 10 is a steel sheet. In other embodiments, the protective sheet 10 can also be a sheet of other materials, such as a sheet made of parylene.
Referring to fig. 3, the battery protection structure 100 is used to cover one or more batteries 50 to form a battery assembly 200, so as to be applied to the electronic device (not shown). The folded portions 11(11a and 11b) and the connecting portions 15(15a and 15b) of the battery protection structure 100 are folded with respect to the main body 13 to form a receiving cavity 101 for receiving the battery 50. The second glue layer 35 is disposed facing the receiving cavity 101 to adhere the battery 50 in the receiving cavity 101.
In some embodiments, the first protection film 30a disposed on the first fold 11a is connected to the second protection film 30b disposed on the second fold 11 b.
Specifically, a side of the base layer 31 of the first protection film 30a facing away from the first folded part 11a is connected to a side of the base layer 31 of the second protection film 30b facing away from the second folded part 11 b. In some embodiments, the connection of the first protection film 30a and the second protection film 30b is pre-cut, that is, the first protection film 30a and the second protection film 30b are connected by a pre-cut line. Referring to fig. 4, when the battery 50 needs to be taken out of the battery protection structure 100, the first protection film 30a and the second protection film 30b are firstly cut along the pre-cut line, and then a force is applied from the base layer 31 without an adhesive layer in a direction away from the battery 50, so that the protection films 30(30a, 30b) adhered to the surface of the battery 50 are torn off from the surface of the battery 50, and the protection sheet 10 is pulled off to take out the battery 50.
Since the third region 381 of the battery protection structure 100 is provided with the second adhesive layer 35, the second adhesive layer 35 adheres to the surface of the battery 50 when the battery protection structure 100 accommodates the battery 50, so as to fix the battery 50 in the battery protection structure 100. Further, a part of the substrate layer 31 is exposed from a side of the folded portion 11 away from the connecting portion 15, and the second sub-region 365 is not provided with an adhesive layer, so that a user can use the second sub-region 365 to separate the battery protection structure 100 from the battery 50, and the substrate layer has better detachability. Further, the steel sheet is used as the protection sheet 10, so that the battery protection structure 100 has high mechanical strength and good puncture-proof effect. Further, the adhesiveness of the first adhesive layer 33 is greater than that of the second adhesive layer 35, so that the adhesive force between the first adhesive layer 33 and the protective sheet 10 is greater than that between the second adhesive layer 35 and the battery 50, thereby preventing a phenomenon in which the battery 50 has not been removed from the battery protection structure 100 but the protective film 30 has been separated from the protective sheet 10. Further, in the battery module 200, when the first protection film 30a and the second protection film 30b are connected by a wire, the base layer 31 without a glue layer can be prevented from being turned up.
In addition, it is obvious to those skilled in the art that other various corresponding changes and modifications can be made according to the technical idea of the present application, and all such changes and modifications should fall within the protective scope of the claims of the present application.
Claims (10)
1. A battery protection structure, comprising:
the protection plate comprises a folding part, a body part and a connecting part, wherein the connecting part is connected with the folding part and the body part;
a protective film disposed in the protective sheet, the protective film comprising:
a base layer comprising a first surface and a second surface opposite the first surface;
the first surface is connected with the folding part through the first adhesive layer; and
and the second adhesive layer is arranged on the second surface.
2. The battery protection structure of claim 1, wherein the first adhesive layer has a greater adhesiveness than the second adhesive layer.
3. The battery protection structure according to claim 1, wherein the protective sheet is a steel sheet.
4. The battery protection structure of claim 1, wherein the first surface comprises a first region and a second region connecting the first region, the first glue layer being disposed in the first region; one part of the second area is arranged on the folding part, and the other part of the second area is positioned on one side of the folding part far away from the connecting part; the second surface comprises a third area and a fourth area connected with the third area, and the second adhesive layer is arranged in the third area.
5. The battery protection structure according to claim 4, wherein the second region includes a first sub-region and a second sub-region, the first sub-region and the second sub-region are sequentially connected, the first sub-region is disposed on the entire side of the folded portion away from the connecting portion, and the second sub-region is disposed on a part of the first sub-region away from the first region.
6. The battery protection structure according to any one of claims 1 to 5, wherein the folded portion includes a first folded portion and a second folded portion; the connecting part comprises a first connecting part and a second connecting part; the first folding part, the first connecting part, the body, the second connecting part and the second folding part are connected in sequence; the protective film is arranged on the first folding part and the second folding part.
7. A battery pack including one or more batteries, wherein the battery pack further includes a battery protection structure according to any one of claims 1-5, wherein a cavity is defined between the folded portion, the connecting portion and the body portion, the battery is received in the cavity, and the second adhesive layer of the protective film is adhered to the battery to fix the battery.
8. The battery assembly of claim 7, wherein the fold comprises a first fold and a second fold; the connecting part comprises a first connecting part and a second connecting part; the first folding part, the first connecting part, the body, the second connecting part and the second folding part are connected in sequence; the protective film is arranged on the first folding part and the second folding part.
9. The battery module according to claim 8, wherein the base layer of the protective film provided in the first folded portion is connected to the base layer of the protective film provided in the second folded portion by a wire.
10. An electronic device comprising the battery assembly according to any one of claims 7-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921241449.1U CN210110885U (en) | 2019-08-01 | 2019-08-01 | Battery protection structure, battery pack and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921241449.1U CN210110885U (en) | 2019-08-01 | 2019-08-01 | Battery protection structure, battery pack and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210110885U true CN210110885U (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921241449.1U Active CN210110885U (en) | 2019-08-01 | 2019-08-01 | Battery protection structure, battery pack and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210110885U (en) |
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2019
- 2019-08-01 CN CN201921241449.1U patent/CN210110885U/en active Active
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