CN212625847U - Battery pack and electronic device - Google Patents
Battery pack and electronic device Download PDFInfo
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- CN212625847U CN212625847U CN202021662054.1U CN202021662054U CN212625847U CN 212625847 U CN212625847 U CN 212625847U CN 202021662054 U CN202021662054 U CN 202021662054U CN 212625847 U CN212625847 U CN 212625847U
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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
The present disclosure provides a battery pack and an electronic apparatus. A battery assembly for an electronic device, the battery assembly comprising: the battery comprises a first battery cell, a second battery cell, a battery protection plate and a fixed membrane component. The first cell comprises a first cell body and a first tab extending from the first cell body. The second battery cell comprises a second battery cell body and a second lug extending from the second battery cell body, and the second lug and the first lug are oppositely arranged. The battery protection plate is connected with the first pole lug and the second pole lug. The fixed membrane component is used for fixing the first electric core and the second electric core in a battery compartment of the electronic equipment, comprises a middle fixed membrane, covers the battery protection board, and is connected with a part of first electric core body and a part of second electric core body which are positioned at two sides of the battery protection board in an attaching mode. The middle fixing film based on the fixing film component is connected with the first electric core body and the second electric core body, and the reliability and the safety of the battery component can be effectively guaranteed in a drop-resistant test.
Description
Technical Field
The present disclosure relates to the field of electronic devices, and in particular, to a battery pack and an electronic device.
Background
At present, electronic equipment such as mobile phones, tablet computers and notebook computers mostly adopt battery packs as power supplies, and along with the requirement of people on the long standby time of the electronic equipment, the battery packs comprise at least two battery cores so as to increase the capacity of the battery packs. However, when reliability tests such as drop resistance are performed on electronic equipment, relative play among a plurality of battery cells is easy to occur, and the battery cells are prone to fail. Based on this, it is necessary to firmly connect a plurality of battery cells together to satisfy reliability tests such as drop resistance.
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 for an electronic device, the battery assembly including:
the battery comprises a first battery cell, a second battery cell and a battery cover, wherein the first battery cell comprises a first battery cell body and a first tab extending out of the first battery cell body;
the second battery cell comprises a second battery cell body and a second lug extending from the second battery cell body, and the second lug and the first lug are oppositely arranged;
a battery protection plate connected with the first tab and the second tab; and
and the fixed membrane component is used for fixing the first electric core and the second electric core in a battery compartment of the electronic equipment, comprises a middle fixed membrane, covers the battery protection board, and is attached and connected with the first electric core body and the second electric core body, which are positioned at two sides of the battery protection board.
Optionally, the middle fixing film is attached to the front surface of the first cell body and the front surface of the second cell body.
Optionally, the middle fixing film comprises a first film base, a plurality of first adhesive tapes and a plurality of first adhesive dots; the first adhesive tapes are arranged on the edge of the first film base body, and the first adhesive dots are arranged in the middle of the first film base body.
Optionally, the fixed film assembly further comprises: the battery comprises a first battery cell body, a battery bin, a first fixing film and a second fixing film which are connected into a whole, wherein the first fixing film is connected with the first battery cell body and the battery bin in a laminating mode, and the second fixing film is connected with the second battery cell body and the battery bin in a laminating mode.
Optionally, the middle fixed film comprises a first film base, the first fixed film comprises a second film base, the second fixed film comprises a third film base, the second film base and the third film base are connected into a whole, and an edge of the second film base and an edge of the third film base are connected with the first film base through a first imaginary tangent line.
Optionally, the first battery cell body comprises a first side edge and a second side edge connected with the side edge where the first tab is located, the first fixing film comprises a first back fixing film and a first side fixing film and a second side fixing film which are arranged on two sides of the first back fixing film relatively, the first back fixing film is connected with the back surface of the first battery cell body and the laminating of the battery compartment, the first side fixing film is connected with the first side edge and the part in the laminating manner of the front surface of the first battery cell body, and the second side fixing film is connected with the second side edge and the part in the laminating manner of the front surface of the first battery cell body.
Optionally, the first fixing film further includes a first lifting film connected to an edge of the first back fixing film through a second imaginary tangent line, and the first lifting film is attached to a part of the back surface and a part of the front surface of the first cell body.
Optionally, the first side fixing film and the second side fixing film include a plurality of second adhesive strips disposed in corresponding regions of the second film base; and/or
The first back fixing film comprises a plurality of second glue points arranged in corresponding areas of the second film substrate; and/or
The first lifting film comprises a third adhesive tape and a plurality of third adhesive dots, wherein the third adhesive tape and the plurality of third adhesive dots are arranged in a corresponding area of the second film base body, and the third adhesive tape is bonded with the back surface of the first battery cell body.
Optionally, the first and second fixation films are identical in structure.
Another aspect of the present disclosure provides an electronic device including the battery assembly of any one of the above-mentioned.
The technical scheme provided by the disclosure at least has the following beneficial effects:
the battery pack and the electronic equipment provided by the embodiment of the disclosure, the first battery cell and the second battery cell are fixed in a battery compartment of the electronic equipment through the fixed film component, the middle fixed film based on the fixed film component covers the battery protection board, and is attached to and connected with part of the first battery cell body and part of the second battery cell body which are positioned on two sides of the battery protection board, so that the first battery cell body and the second battery cell body are firmly connected into a whole, and the first battery cell body and the second battery cell body cannot move relatively in reliability tests such as falling resistance, and further the reliability and the safety of the first battery cell body and the second battery cell body are ensured.
Drawings
FIG. 1 is a schematic front view of a battery assembly according to an exemplary embodiment;
FIG. 2 is a schematic diagram of the back side of a battery assembly according to an exemplary embodiment;
FIG. 3 illustrates a schematic front view of a battery assembly according to an exemplary embodiment of the present disclosure;
FIG. 4 illustrates a schematic backside view of a battery assembly according to an exemplary embodiment of the present disclosure;
FIG. 5 illustrates a schematic front view of a fixed film assembly according to an exemplary embodiment of the present disclosure;
FIG. 6 illustrates a schematic backside view of a fixed film assembly according to an exemplary embodiment of the present disclosure;
fig. 7 is a schematic diagram illustrating a separation of a fixed film assembly from a first cell and a second cell according to an exemplary embodiment of the present disclosure.
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 embodiments described in the following exemplary embodiments do not represent all embodiments 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 front view of a battery pack according to an exemplary embodiment, and fig. 2 is a schematic rear view of the battery pack according to an exemplary embodiment. Referring to fig. 1 and 2 in combination, the battery cell 110 includes a cell body 111 and a tab (not shown) extending from the cell body 111, and the tab is connected to the battery protection plate 120. The surface of the cell body 111 is wrapped with a fixing film 130. The fixed film 130 includes a back fixed film 131, a first side fixed film 132 and a second side fixed film 133 oppositely disposed at both sides of the back fixed film 131, and a pull film 134 positioned at the same side as the second side fixed film 133. The fixing film 130 is bonded to the battery cell body 111 through a glue layer, and the outer surface of the back fixing film 131 is bonded to the battery compartment of the electronic device through a double-sided glue layer 135, so as to fix the battery cell 110 to the battery compartment.
When the battery assembly includes a first cell and a second cell, the structure of the first cell and the second cell can be referred to the above explanation. The first electrode lug of the first battery cell and the second electrode lug of the second battery cell are arranged oppositely, and the first electrode lug and the second electrode lug are connected with the same battery protection board. However, in the reliability tests of drop resistance, a roller and the like, relative play is easy to occur between the first battery cell and the second battery cell, so that the first battery cell and the second battery cell are easy to collide with each other, the first tab and the second tab are broken or the first battery cell and the second battery cell leak liquid, the first battery cell and the second battery cell are invalid, and even potential safety hazards such as fire disasters can be caused by internal short circuit of the first battery cell and the second battery cell.
In order to solve the above problems, embodiments of the present disclosure provide a battery pack and an electronic device, which are described in detail below with reference to the accompanying drawings:
an electronic device provided by an embodiment of the present disclosure includes a battery assembly. The electronic equipment can comprise a machine body, the machine body is provided with a battery compartment, and the battery pack is assembled in the battery compartment to supply power to the electronic equipment.
The electronic device provided by the embodiment of the present disclosure includes but is 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 the like.
Fig. 3 is a schematic front view of a battery assembly according to an exemplary embodiment of the present disclosure, and fig. 4 is a schematic back view of a battery assembly according to an exemplary embodiment of the present disclosure. It should be noted that the "back" referred to in fig. 3 and 4 refers to a side connected to the battery compartment, and the "front" refers to a side facing away from the battery compartment and visible to a user. Referring to fig. 3 and 4 in combination, the battery assembly includes: a first battery cell 210, a second battery cell 220, a battery protection plate 230, and a fixing film assembly 240.
The first cell 210 includes a first cell body 211 and a first tab (not shown) extending from the first cell body 211. The second cell 220 includes a second cell body 221 and a second tab (not shown) extending from the second cell body 221, and the second tab and the first tab are disposed opposite to each other. Illustratively, the first cell 210 and the second cell 220 may both be lithium ion cells. Illustratively, the first cell 210 and the second cell 220 have the same dimensional specifications. Illustratively, the first cell 210 and the second cell 220 differ in dimensional specifications.
The battery protection plate 230 is coupled to the first and second tabs. It is understood that the battery protection plate 230 is provided at a region between the first cell body 211 and the second cell body 221 such that the first cell body 211 and the second cell body 221 are located at opposite sides of the battery protection plate 230, respectively.
The fixing film assembly 240 is used to fix the first cell 210 and the second cell 220 in a battery compartment of an electronic device, and the fixing film assembly 240 includes a middle fixing film 241 covering the battery protection board 230 and attached to and connected to a portion of the first cell body 211 and a portion of the second cell body 221 on two sides of the battery protection board 230, so as to firmly connect the first cell body 211 and the second cell body 221 into a whole. Referring to fig. 4, the first cell 210 and the second cell 220 may be fixed in the battery compartment by fixing a double-sided adhesive layer 242 on the back of the film assembly 240.
Based on the above, in the battery pack and the electronic device provided in the embodiment of the present disclosure, the first battery cell 210 and the second battery cell 220 are fixed in the battery compartment of the electronic device through the fixing film assembly 240, the middle fixing film 241 based on the fixing film assembly 240 covers the battery protection board 230, and is attached to and connected to the portion of the first battery cell body 211 and the portion of the second battery cell body 221 located at two sides of the battery protection board 230, so that the first battery cell body 211 and the second battery cell body 221 are firmly connected into a whole, so that the first battery cell body 211 and the second battery cell body 221 do not move relatively in reliability tests such as drop resistance, and reliability and safety of the first battery cell body 211 and the second battery cell body 221 are further ensured.
In some embodiments, the middle fixing film 241 is attached to the front surface of the first cell body 211 and the front surface of the second cell body 221. For example, a letter mark or the like may be printed on the surface of the middle fixing film 241 to facilitate the user to disassemble the battery pack.
FIG. 5 illustrates a schematic front view of a fixed film assembly 240 according to an exemplary embodiment of the present disclosure, and FIG. 6 illustrates a schematic back view of a fixed film assembly 240 according to an exemplary embodiment of the present disclosure. The "back" referred to in fig. 5 and 6 refers to a surface bonded to the cell body, or an inner surface of the fixing film assembly 240. The "front side" refers to the side facing away from the cell body, or the outer surface of the fixed membrane assembly 240. In some embodiments, referring collectively to fig. 3-6, the fixed film assembly 240 further comprises: the first fixing film 243 and the second fixing film 244 are integrally connected, the first fixing film 243 is attached to the first cell body 211 and the battery compartment, and the second fixing film 244 is attached to the second cell body 221 and the battery compartment. In this way, the first fixing film 243 and the second fixing film 244 which are connected to each other also facilitate the first battery cell 210 and the second battery cell 220 to be firmly connected into a whole, and in a reliability test, the first battery cell 210 and the second battery cell 220 are prevented from moving relatively. Also, it is convenient to simultaneously detach the first and second battery cells 210 and 220 from the first and second fixing films 243 and 244.
In some embodiments, with continued reference to fig. 6, the middle securing film 241 includes a first film base 245, the first securing film 243 includes a second film base 246, the second securing film 244 includes a third film base 247, the second film base 246 and the third film base 247 are integrally connected, and an edge of the second film base 246 and an edge of the third film base 247 are connected to the first film base 245 by a first imaginary cut line 201. In this way, the production and manufacture of the fixing film assembly 240 are facilitated, and the assembly between the fixing film assembly 240 and the first and second cell bodies 211 and 221 is facilitated. Additionally, the first film substrate 245 may be separated from the second film substrate 246 and the third film substrate 247 by the first imaginary tangent 201.
In the embodiment of the present disclosure, the structures of the first and second fixing films 243 and 244 may be the same or different. For convenience of manufacturing, the first fixing film 243 and the second fixing film 244 may have the same structure and may be symmetrically disposed at both sides of the battery protection plate 230.
In some embodiments, with continued reference to fig. 3 to 6, the first cell body 211 includes a first side 212 and a second side 213 connected to the side where the first tab is located, the first fixing film 243 includes a first back fixing film 248, and a first side fixing film 249 and a second side fixing film 250 oppositely disposed on two sides of the first back fixing film 248, the first back fixing film 248 is attached to the back surface of the first cell body 211 and the battery compartment, the first side fixing film 249 is attached to the first side 212 and a portion of the front surface of the first cell body 211, and the second side fixing film 250 is attached to the second side 213 and a portion of the front surface of the first cell body 211. Like this, through setting up first side fixed film 249 and second side fixed film 250, do benefit to first fixed film 243 firmly and first electric core body 211 laminating connection, and then firmly be fixed in the battery compartment first electric core 210 through first fixed film 243. Similarly, the second cell body 221 includes a third side 222 and a fourth side 223 connected to the side where the second electrode tab is located, the second fixing film 244 includes a second back fixing film 251, and a third side fixing film 252 and a fourth side fixing film 253 oppositely disposed at two sides of the second back fixing film 251, the second back fixing film 251 is attached to the back surface of the second cell body 221 and the battery compartment, the third side fixing film 252 is attached to the third side 222 and a portion of the front surface of the second cell body 221, and the fourth side fixing film 253 is attached to the fourth side 223 and a portion of the front surface of the second cell body 221. In this way, by providing the third side fixing film 252 and the fourth side fixing film 253, the second fixing film 244 is favorably and firmly attached to the second cell body 221, and the second cell 220 is firmly fixed in the battery compartment by the second fixing film 244.
In some embodiments, with continued reference to fig. 5 and 6, the first fixing film 243 further includes a first pulling film 254 connected to an edge of the first back fixing film 248 by the second imaginary cut line 202, and the first pulling film 254 is attached to a part of the back surface and a part of the front surface of the first cell body 211. By pulling the first pulling film 254, a force of the first cell body 211, which is away from the first back fixing film 248 and the battery compartment, is given, the first pulling film 254 is separated from the first back fixing film 248 by the second virtual tangent line 202, so that the first cell body 211 is driven to be separated from the first back fixing film 248, and the first cell body 211 is detached from the battery compartment. Similarly, the second fixing film 244 may further include a second pulling film 255 connected to an edge of the second back fixing film 251 by a third imaginary tangential line 203, and the second pulling film 255 is attached to a portion of the back surface and a portion of the front surface of the second cell body 221. By pulling the second pulling film 255, a force of the second cell body 221, which is away from the second back fixing film 251 and the battery compartment, is given, and the second pulling film 255 is separated from the second back fixing film 251 by the third imaginary tangent 203, so that the second cell body 221 is driven to be separated from the second back fixing film 251, and the second cell body 221 is detached from the battery compartment.
Illustratively, the first pull-up film 254 and the second side attachment film 250 are on the same side of the first back attachment film 248, and the first pull-up film 254 and the second side attachment film 250 may be connected by a dashed tangent line. Similarly, the second pull-up film 255 and the fourth side fastening film 253 are located on the same side of the second back fastening film 251, and the second pull-up film 255 and the fourth side fastening film 253 may be connected by a virtual tangent line.
In some embodiments, with continued reference to fig. 6, the central fastening film 241 includes a first film base 245, a plurality of first glue strips 256, and a plurality of first glue sites 257; the plurality of first adhesive tapes 256 are disposed on the edge of the first film base 245, and the plurality of first adhesive dots 257 are disposed in the middle of the first film base 245. It is understood that the area of any glue dot referred to in this disclosure is smaller than the area of any glue strip. Like this, middle part fixed film 241 can firmly bond first electric core body 211 and second electric core body 221 through first adhesive tape 256, through a plurality of first glue point 257 and the battery protection board 230 between weak connection, when falling, plays the cushioning effect between middle part fixed film 241 and the battery protection board 230 like this.
In some embodiments, with continued reference to fig. 6, the first and second side securing films 249, 250 may include a plurality of second glue strips 258 disposed on corresponding regions of the second film substrate 246. In this way, the first side fixing film 249 and the second side fixing film 250 are firmly bonded to the first side 212 and the second side 213 of the first cell body 211, respectively, by the second adhesive tape 258. Illustratively, the area size of any two second adhesive strips 258 may be the same, or may be different.
In some embodiments, with continued reference to fig. 6, the first back securing film 248 may include a plurality of second glue sites 259 disposed on corresponding areas of the second film substrate 246. In this way, the first back fixing film 248 and the first cell body 211 can be bonded, and the first cell body 211 and the first back fixing film 248 can be detached conveniently. In addition, the front surface of the first back fixing film 248 is bonded and connected with the battery compartment through the double-sided adhesive layer 242.
In some embodiments, with continued reference to fig. 6, the first lift-off film 254 may include a third adhesive strip 260 and a plurality of third adhesive dots 261 disposed on a corresponding area of the second film substrate 246, the third adhesive strip 260 being bonded to the back side of the first cell body 211, and the plurality of third adhesive dots 261 being bonded to the front side of the first cell body 211. In this way, the third adhesive tape 260 is firmly bonded to the back surface of the first cell body 211, and the first cell body 211 can be detached from the first back fixing film 248 by the first pulling-up film 254.
As for the arrangement of the second fixing film 244, reference may be made to the arrangement of the first fixing film 243, which is not described herein again.
Fig. 7 is a schematic diagram illustrating the separation of the fixed film assembly 240 from the first cell 210 and the second cell 220 according to an exemplary embodiment of the present disclosure. In order to more clearly understand the matching relationship between the fixing film assembly 240 and the first and second battery cells 210 and 220 provided by the present disclosure, how to disassemble the fixing film assembly 240 and the first and second battery cells 210 and 220 is described below with reference to fig. 7:
referring to fig. 7, in the detachment, the first side fixing film 249, the second side fixing film 250, and the first pulling film 254 of the first fixing film 243 are torn off from the front surface of the first cell body 211, and the third side fixing film 252, the fourth side fixing film 253, and the second pulling film 255 of the second fixing film 244 are torn off from the front surface of the second cell body 221. The first and second pull-up films 254 and 255 are then pulled up, so that the first and second cell bodies 211 and 221 are separated from the first and second back fixing films 248 and 251, respectively, at the same time. The middle fixing film 241 is separated from the first back fixing film 248 and the second back fixing film 251 through the first virtual tangent line 201, and is attached to the first battery cell body 211 and the second battery cell body 221, so that the first battery cell body 211 and the second battery cell body 221 can be conveniently used and transported for the second time. The first back fixing film 248, the second back fixing film 251, the first side fixing film 249, the second side fixing film 250, the third side fixing film 252 and the fourth side fixing film 253 remain inside the battery compartment.
In summary, the battery assembly and the electronic device provided by the embodiment of the present disclosure, based on the middle fixing film 241 of the fixing film assembly 240 and the portion of the first cell body 211 and the portion of the second cell body 221 located at two sides of the battery protection plate 230, and the first fixing film 243 and the second fixing film 244 are connected as an integral body, the first fixing film 243 is connected with the first cell body 211 in a fitting manner, and the second fixing film 244 is connected with the second cell body 221 in a fitting manner, so that the first cell body 211 and the second cell body 221 are firmly connected as an integral body, so that in a reliability test such as drop resistance, the first cell body 211 and the second cell body 221 do not move relatively, and reliability and safety of the first cell body 211 and the second cell body 221 are ensured. The first film base 245 based on the middle fixing film 241, the second film base 246 based on the first fixing film 243, and the third film base of the second fixing film 244 are connected into a whole, and are matched with adhesive tapes and adhesive dots, so that the production and manufacturing of the fixing film assembly 240 are facilitated, the cost is reduced, and the assembly between the fixing film assembly 240 and the first electric core 210 and the second electric core 220 is facilitated. In addition, after the first battery cell 210 and the second battery cell 220 are detached from the battery compartment, the middle fixing film 241 is remained on the first battery cell 210 and the second battery cell 220, which ensures that the first battery cell 210 and the second battery cell 220 are firmly connected into a whole, thereby facilitating transportation and secondary use of the first battery cell 210 and the second battery cell 220. In addition, the battery pack has detachability, and meets the requirement of secondary use.
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 (10)
1. A battery assembly for an electronic device, the battery assembly comprising:
the battery comprises a first battery cell, a second battery cell and a battery cover, wherein the first battery cell comprises a first battery cell body and a first tab extending out of the first battery cell body;
the second battery cell comprises a second battery cell body and a second lug extending from the second battery cell body, and the second lug and the first lug are oppositely arranged;
a battery protection plate connected with the first tab and the second tab; and
and the fixed membrane component is used for fixing the first electric core and the second electric core in a battery compartment of the electronic equipment, comprises a middle fixed membrane, covers the battery protection board, and is attached and connected with the first electric core body and the second electric core body, which are positioned at two sides of the battery protection board.
2. The battery assembly of claim 1, wherein the middle securing film is attached to the front surface of the first cell body and the front surface of the second cell body.
3. The battery assembly of claim 1, wherein the middle securing film comprises a first film base, a plurality of first adhesive strips, and a plurality of first adhesive dots; the first adhesive tapes are arranged on the edge of the first film base body, and the first adhesive dots are arranged in the middle of the first film base body.
4. The battery module according to claim 1, wherein the fixing film assembly further comprises: the battery comprises a first battery cell body, a battery bin, a first fixing film and a second fixing film which are connected into a whole, wherein the first fixing film is connected with the first battery cell body and the battery bin in a laminating mode, and the second fixing film is connected with the second battery cell body and the battery bin in a laminating mode.
5. The battery module of claim 4, wherein the middle securing film comprises a first film substrate, the first securing film comprises a second film substrate, the second securing film comprises a third film substrate, the second film substrate and the third film substrate are integrally connected, and an edge of the second film substrate and an edge of the third film substrate are connected to the first film substrate by a first imaginary tangent line.
6. The battery assembly of claim 5, wherein the first cell body includes a first side edge and a second side edge connected to the side edge where the first tab is located, the first fixing film includes a first back fixing film, and a first side fixing film and a second side fixing film that are oppositely disposed on two sides of the first back fixing film, the first back fixing film is attached to the back surface of the first cell body and the battery compartment, the first side fixing film is attached to the first side edge and a portion of the front surface of the first cell body, and the second side fixing film is attached to the second side edge and a portion of the front surface of the first cell body.
7. The battery assembly of claim 6, wherein the first securing film further comprises a first pull film connected to an edge of the first back securing film by a second imaginary tangent line, the first pull film being attached to a portion of the back surface and a portion of the front surface of the first cell body.
8. The battery module of claim 7, wherein the first and second side securing films comprise a plurality of second adhesive strips disposed at corresponding regions of the second film substrate; and/or
The first back fixing film comprises a plurality of second glue points arranged in corresponding areas of the second film substrate; and/or
The first lifting film comprises a third adhesive tape and a plurality of third adhesive dots, wherein the third adhesive tape and the plurality of third adhesive dots are arranged in a corresponding area of the second film base body, and the third adhesive tape is bonded with the back surface of the first battery cell body.
9. The battery module of claim 4, wherein the first and second securing films are identical in structure.
10. An electronic device comprising the battery pack according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021662054.1U CN212625847U (en) | 2020-08-11 | 2020-08-11 | Battery pack and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021662054.1U CN212625847U (en) | 2020-08-11 | 2020-08-11 | Battery pack and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212625847U true CN212625847U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021662054.1U Active CN212625847U (en) | 2020-08-11 | 2020-08-11 | Battery pack and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212625847U (en) |
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2020
- 2020-08-11 CN CN202021662054.1U patent/CN212625847U/en active Active
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