CN220376595U - Membrane layer assembly, battery assembly and electronic equipment - Google Patents

Abstract

The application provides a film layer assembly, a battery assembly and electronic equipment, wherein the electronic equipment comprises a shell and the battery assembly; the battery assembly comprises a battery and a film layer assembly, wherein the film layer assembly at least half wraps the battery, the surface of the battery comprises a front surface and a back surface which are opposite, and a side surface which is connected with the front surface and the back surface, the film layer assembly comprises a flattening area and a folding area, the flattening area covers the back surface of the battery, and the folding area covers at least part of the side surface and at least part of the front surface of the battery; at least part of the area of the film layer component is a first glue area, and the glue amount or the adhesive force of the first glue area is larger than that of other areas of the film layer component except the first glue area. Compared with the film layer assembly, all areas are weak glue, the adhesive force of the first glue area is stronger, and when the falling height of the battery is higher than a certain height, the protection film is ensured to be kept flat, so that the poor appearance surface of the battery is avoided.

Description

Membrane layer assembly, battery assembly and electronic equipment

Technical Field

The application relates to the field of film technology, in particular to a film layer assembly, a battery assembly and electronic equipment.

Background

Along with the development of electronic equipment, the appearance design of some electronic equipment can make the battery outward appearance in the electronic equipment seen by the user, and the surface of battery in prior art is usually cladding has the protection film, and the cladding of at least part protection film outside has the rete subassembly, but in order to dismantle the battery easily in prior art, the surface of rete subassembly is usually set up to punctiform weak gum, and when electronic equipment falls highly to be higher than certain height, the protection film can take place deformation wrinkling, causes the outward appearance face of battery poor.

Disclosure of Invention

Therefore, the application provides a film layer assembly, a battery assembly and electronic equipment, so as to solve the technical problems.

A first aspect of the present application provides a film layer assembly for half-wrapping a battery, the surface of the battery comprising opposing front and back sides, and sides connecting the front and back sides, the film layer assembly comprising a flattened region overlying the back side of the battery and a folded region overlying at least a portion of the sides and at least a portion of the front side of the battery; at least part of the area of the film layer component is a first glue area, and the glue amount or the adhesive force of the first glue area is larger than that of other areas of the film layer component except the first glue area.

In one possible implementation manner, the front surface of the battery is quadrilateral in shape, and the area corresponding to at least one corner position of the front surface of the battery in the folding area is the first glue area.

In one possible implementation, the folding zone includes a plurality of sub-folding zones that form at least one overlapping zone on the front side of the cell.

In one possible implementation, at least part of the overlapping region is a second glue region, and the second glue region in the sub-folding region has a glue amount smaller than or greater than that of other regions in the sub-folding region.

In one possible implementation, the folding zone includes a first sub-folding zone, a second sub-folding zone, and a third sub-folding zone; the first sub-folding area and the second sub-folding area are partially overlapped on the front surface, and the overlapped part is a first overlapped area; the second sub-folding region and the third sub-folding region are partially overlapped on the front surface, and the overlapped part is a second overlapped region.

In one possible implementation, the color of the second glue area is less than a first threshold value with respect to the color of the area of the battery not covered by the film layer assembly, or less than a second threshold value with respect to the color of the housing of the electronic device in which the battery is mounted.

In one possible implementation, the film layer assembly further includes a third glue area disposed in the leveling area, the third glue area including a plurality of sub-glue areas, the plurality of sub-glue areas having at least one of a glue dot density, a viscosity, and a glue amount different from each other.

In one possible implementation, the third glue area includes a first sub-glue area, a second sub-glue area, and a third sub-glue area, where the first sub-glue area is disposed adjacent to the second sub-glue area, and the third sub-glue area is surrounded by the second sub-glue area.

In one possible implementation, the first sub-glue area is composed of two glue sites of different diameters arranged in a staggered manner.

In one possible implementation, the film layer assembly further includes a tear portion, one end of which is connected to the back surface of the battery and corresponds to a position of the at least part of the second sub-adhesive region and/or the third sub-adhesive region.

A second aspect of the present application provides a battery assembly comprising a battery and a film layer assembly as described above for semi-wrapping the battery.

In one possible implementation manner, the battery comprises a battery core and a protective film, a hot melt adhesive is arranged between the battery core and the protective film, the film layer assembly is arranged on one side of the protective film away from the battery core, and the projection of the film layer assembly on the protective film is overlapped with the projection part of the hot melt adhesive on the protective film.

A third aspect of the present application provides an electronic device comprising the aforementioned battery assembly.

In one possible implementation, the electronic device further comprises an at least partially transparent rear cover, the film layer assembly comprising a second glue area located in a position corresponding to the transparent portion of the rear cover; the film layer assembly comprises a folding area, the folding area covers at least part of the side face and at least part of the front face of the battery, the folding area comprises a plurality of sub-folding areas, at least one superposition area is formed on the front face of the battery by the plurality of sub-folding areas, and at least part of the superposition area is a second glue area.

In this application, because the surface of battery is the protection film, the rete subassembly is used for half parcel at least a battery, compares in the regional weak glue of all of rete subassembly, the regional first district that glues that is at least of rete subassembly is provided with first district and can make the adhesion of rete subassembly is stronger, can be in when the battery falls highly and is higher than certain height, the guarantee the surface maintenance of battery is leveled to avoid the outward appearance face of battery bad.

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural diagram of a membrane module according to some embodiments of the present disclosure;

fig. 2 is a schematic structural diagram of a battery at a first viewing angle according to some embodiments of the present application;

fig. 3 is a schematic structural view of a battery at a second viewing angle according to some embodiments of the present application;

FIG. 4 is a schematic structural view of a folded film assembly according to some embodiments of the present disclosure;

FIG. 5 is a schematic structural diagram of a third adhesive region of a film assembly according to some embodiments of the present disclosure;

FIG. 6 is a block diagram of a battery assembly provided in some embodiments of the present application;

fig. 7 is a schematic structural diagram of an electronic device according to some embodiments of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without undue burden, are within the scope of the present application.

In the description of the present application, unless explicitly stated and limited otherwise, the term "coupled" is to be interpreted broadly, as for example, being either fixedly coupled, detachably coupled, or integrally coupled; can be directly connected, can also be indirectly connected through an intermediate medium, and can also be the communication between the two elements; may be a communication connection; may be an electrical connection. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

Referring to fig. 1 and fig. 2 in combination, fig. 1 is a schematic structural diagram of a film assembly according to some embodiments of the present application; fig. 2 is a schematic structural diagram of a battery according to some embodiments of the present application at a first viewing angle.

As shown in fig. 1 and 2, in some embodiments, the film assembly 1 is configured to at least half-wrap a battery 2, the surface 20 of the battery 2 includes a front surface 21 and a back surface 22 opposite to each other, and a side surface 23 connecting the front surface 21 and the back surface 22, the film assembly 1 includes a flat region 11 and a folded region 12, the flat region 11 covers the back surface 22 of the battery 2, and the folded region 12 covers at least a portion of the side surface 23 and at least a portion of the front surface 21 of the battery 2. At least a part of the area of the film layer assembly 1 is a first glue area 13, and the glue amount or the adhesive force of the first glue area 13 is greater than that of other areas of the film layer assembly 1 except the first glue area 13.

In this application, because the surface of battery 2 is protection film 3, membrane layer subassembly 1 is used for half parcel at least a battery 2, compares in all regions of membrane layer subassembly 1 and is weak glue, at least partial region of membrane layer subassembly 1 is first gluey district 13, is provided with first gluey district 13 can make the adhesion of membrane layer subassembly 1 is stronger, can be in when battery 2 falls highly and is higher than certain height, the guarantee the surface of battery 2 remains to be leveled to avoid the outward appearance face of battery 2 bad.

The first glue area 13 refers to a glue area with a glue amount or an adhesive force of a unit area greater than a preset value, and the other areas of the film assembly 1 refer to areas with a glue amount or an adhesive force of a unit area less than a preset value, or alternatively, the glue of the first glue area 13 is in a whole, and the other areas of the film assembly 1 are composed of a plurality of independent glue points.

The surface of the battery 2 may be provided with an aluminum plastic film (a film formed by compounding an aluminum foil and a plastic film) as a protective film.

In some embodiments, the battery 2 is rectangular or cuboid-like in shape, including rectangular parallelepiped with rounded corners.

The front surface 21 and the rear surface 22 may be the largest two surfaces among six surfaces of the rectangular or cuboid-like battery 2.

In some embodiments, the front surface 21 of the battery 2 is quadrilateral in shape, and the area of the folded area 12 corresponding to at least one corner position of the front surface 21 of the battery is the first glue area 13. The four corners of the quadrangle are positioned at the corner positions.

In some embodiments, the areas of the folded area 12 corresponding to the four corner positions of the front surface 21 of the battery are all the first glue areas 13.

Referring to fig. 1-4 in combination, fig. 3 is a schematic structural diagram of a battery at a second viewing angle according to some embodiments of the present application; fig. 4 is a schematic structural view of a film layer assembly in a folded configuration according to some embodiments of the present disclosure.

As shown in fig. 1-4, in some embodiments, the fold region 12 includes a plurality of sub-fold regions that form at least one overlap region 120 on the cell front face 21.

In some embodiments, the fold region 12 includes a first sub-fold region 121, a second sub-fold region 122, and a third sub-fold region 123. The first sub-folding area 121 and the second sub-folding area 122 are partially overlapped on the front surface 21, and the overlapped portion is a first overlapped area 124; the second sub-folding region 122 and the third sub-folding region 123 are partially overlapped on the front surface 21, and the overlapped portion is a second overlapped region 125, wherein the overlapped region 120 includes the first overlapped region 124 and the second overlapped region 125.

Both the first overlap region 124 and the second overlap region 125 have a double layer film layer assembly, which can make the film layer assembly 1 more firmly coated when coating the battery 2.

The first sub-folding area 121, the second sub-folding area 122 and the third sub-folding area 123 may be formed of several parts or may be formed of one part. In some embodiments, the first sub-fold 121 is comprised of a first portion 1211 and a second portion 1212, and the first portion 1211 is spaced apart from the second portion 1212.

In some embodiments, the side 23 of the battery 2 includes a first side 231, a second side 232, and a third side 233, the second side 232 being located between the first side 231 and the third side 233. The first side 231 and the third side 233 are disposed opposite. The first sub-folding region 121 covers the first side 231 of the battery 2 and at least part of the front face 21. The second sub-folding zone 122 covers the second side 232 of the battery 2 and at least part of the front face 21. The third sub-folding area 123 covers the third side 233 of the battery 2 and at least part of the front face 21.

In some embodiments, at least a portion of the overlap region 120 is a second glue region 1200, and the second glue region 1200 in the sub-fold region has less or more glue than other regions in the sub-fold region.

In some embodiments, the color of the second glue area 1200 is less than a first threshold with respect to the color of the area of the battery 2 not covered by the film assembly 1, or less than a second threshold with respect to the color of the housing of the electronic device 4 in which the battery 2 is mounted.

Further, the color of the second glue area 1200 is identical to the color of the area of the battery 2 not covered by the film assembly 1, or the color of the housing of the electronic device 4 on which the battery 2 is mounted.

When the housing of the electronic device 4 on which the battery 2 is mounted includes a transparent housing or a hollow area, and the second glue area 1200 is visible from the transparent housing or the hollow area, the color of the second glue area 1200 is identical to the color of the area of the battery 2 not covered by the film layer assembly 1, or the color of the housing of the electronic device 4 on which the battery 2 is mounted, so that the overall color is more harmonious and uniform.

In some embodiments, the second glue area 1200 includes a first glue area 126 and a second glue area 127, and at least a portion of the first overlapping area 124 is the first glue area 126. At least a part of the second overlapping area 125 is the second glue-killing area 127. The colors of the first glue killing area 126 and the second glue killing area 127 are uniform with the color of the area of the battery 2 which is not covered by the film layer assembly 1, or the color of the casing of the electronic device provided with the battery 2.

The first glue-killing area 126 and the second glue-killing area 127 change the color by increasing or decreasing the glue amount, so that the color of the area of the battery 2 not covered by the film layer assembly 1 is unified with the color of the housing of the electronic device in which the battery 2 is mounted.

In some embodiments, the side 23 of the battery 2 further includes a fourth side 234, the area of the front 21 of the battery 2 near the fourth side 234 is provided with a high-temperature glue 210, the first sub-folded region 121 and the high-temperature glue 210 are partially overlapped to form a lap joint structure, and the third sub-folded region 123 and the high-temperature glue 210 are partially overlapped to form a lap joint structure.

The first sub-folding area 121 and the high temperature glue 210 are partially overlapped to form a lap joint structure, and compared with a gap between the first sub-folding area 121 and the high temperature glue 210, the contact area between the film layer assembly 1 and the protective film 3 can be increased, so that the protective film 3 can be kept flat more easily.

Referring to fig. 1, fig. 2, and fig. 5 in combination, fig. 5 is a schematic structural diagram of a third adhesive region of a film assembly according to some embodiments of the present application.

As shown in fig. 1, 2 and 5, in some embodiments, the film assembly 1 further includes a third glue area 14, where the third glue area 14 is disposed in the leveling area 11, and the third glue area 14 includes a plurality of sub-glue areas, where at least one of glue point density, viscosity and glue amount between the plurality of sub-glue areas is different.

In some embodiments, the third glue area 14 includes a first sub-glue area 141, a second sub-glue area 142, and a third sub-glue area 143; the glue dot density of the first sub-glue area 141 is greater than the glue dot density of the second sub-glue area 142, and the glue dot density of the second sub-glue area 142 is greater than the glue dot density of the third sub-glue area 143.

In some embodiments, the first sub-adhesive area 141 is disposed adjacent to the second sub-adhesive area 142, and the third sub-adhesive area 143 is surrounded by the second sub-adhesive area 142.

In some embodiments, the second sub-adhesive area 142 and the third sub-adhesive area 143 are disposed in a region of the flat area 11 covering the back 22 of the battery 2 away from the first sub-folding area 121. The first sub-adhesive region 141 is disposed in a region of the flat region 11 covering the rear surface 22 of the battery 2 away from the third sub-folding region 123.

In some embodiments, the area of the first sub-adhesive area 141 is larger than the area of the second sub-adhesive area 142, and the area of the second sub-adhesive area 142 is larger than the area of the third sub-adhesive area 143.

In some embodiments, the third sub-adhesive area 143 is rectangular, the second sub-adhesive area 142 is square-like, and the first sub-adhesive area 141 is polygonal.

In some embodiments, the first sub-adhesive area 141 is formed by two adhesive dots with different diameters in a staggered arrangement. Compared with the arrangement mode that the diameters of the glue points are the same, the arrangement mode can better enable the film layer assembly 1 to be sufficiently sticky when being stuck on the protective film 3, and meanwhile the protective film 3 is easy to detach when being detached from the battery 2.

In some embodiments, the first sub-adhesive area 141 is formed by arranging two adhesive dots with the diameters of the adhesive dots between 1.27 and 1.33mm and between 1.07 and 1.13, and at least part of the adhesive dots have a center-to-center distance of 2mm. The glue spot diameter of the second sub-glue area 142 is between 0.97 mm and 1.03mm, and the center distance between at least partial glue spots is 2mm. The glue spot diameter of the third sub-glue area 143 is between 0.77 mm and 0.83mm, and the center distance between at least partial glue spots is 2mm.

In some embodiments, the film assembly 1 further includes a tear portion 15, where one end of the tear portion 15 is connected to the back surface 22 of the battery 2 and corresponds to the position of the second sub-adhesive area 142 and/or the third sub-adhesive area 143. Further, the other end of the tear-off portion 15 is connected to the front face 21 of the battery 2, and the tear-off portion 15 is located between the first portion 1211 and the second portion 1212 of the first sub-folding region 121.

The user can make battery 2 with membrane layer assembly 1 separation through pulling tearing hand 15 to, set up tearing hand 15 can be more convenient for the user with battery 2 with membrane layer assembly 1 separation.

The surface is for the battery 2 of protection film 3, by the cladding of rete subassembly 1 back, mountable in a battery pack, there is the battery mounting groove in the battery pack, just be provided with the gum in the battery mounting groove, cladding battery 2 rete subassembly 1 with the gum is pasted, because the rete subassembly 1 with glue between the protection film 3 of battery 2 is connected, the rete subassembly 1 with pass through between the battery mounting groove the gum is connected, thereby can fix battery 2, avoid its removal and produce wearing and tearing. When the battery needs to be detached from the battery assembly, the easy-to-tear tape is first torn from the folded configuration shown in fig. 4 to the flat configuration shown in fig. 1, and then the tear hand 15 is pulled to separate the battery 2 from the film layer assembly 1, and in the flat configuration, the back surface 22 of the battery 2 is in an adhesive state with the third adhesive region 14 of the film layer assembly 1, so that the battery 2 is more easily separated from the film layer assembly 1 than the back surface 22 of the battery 2 is connected with the film layer assembly 1 by a strong adhesive. In addition, since the glue dot density of the third glue area 143 is smaller than that of the second glue area 142, the glue dot density of the second glue area 142 is smaller than that of the first glue area 141, one end of the tearing portion 15 is connected to the back 22 of the battery 2 and corresponds to the position of the second glue area 142 and/or the third glue area 143, and by this arrangement, the film assembly 1 and the battery 2 can have sufficient adhesive force to ensure that the battery is not moved after being mounted, and at the same time, the tearing portion 15 can be lifted by a user when the battery 2 is detached, the third glue area 143 with weaker adhesive force is separated from the battery 2, and finally the first glue area 141 with stronger adhesive force is separated from the battery 2, which is more beneficial to the user to separate the battery 2 from the film assembly 1.

Referring to fig. 6, fig. 6 is a block diagram illustrating a battery assembly according to some embodiments of the present application.

As shown in fig. 6, in some embodiments, the battery assembly 5 includes a battery 2 and the film layer assembly 1 according to any of the foregoing embodiments, where the film layer assembly 1 half wraps the battery 2.

In some embodiments, the battery 2 includes a battery cell (not labeled) and a protective film 3, a hot melt adhesive (not labeled) is disposed between the battery cell and the protective film 3, the film layer assembly 1 is disposed on a side of the protective film 3 away from the battery cell, and a projection of the film layer assembly 1 on the protective film 3 overlaps a projection portion of the hot melt adhesive on the protective film 3. Wherein, the protective film 3 coats the battery cell. The hot melt adhesive can also prevent the protective film 3 from wrinkling when dropped. Under the action of the film layer assembly 1 and the hot melt adhesive, the whole protective film 3 of the battery 2 can be kept flat and wrinkle-free when falling.

Referring to fig. 1, fig. 2, fig. 6, and fig. 7 in combination, fig. 7 is a schematic structural diagram of an electronic device according to some embodiments of the present application.

As shown in fig. 1, 2, 6 and 7, in some embodiments, the electronic device 4 includes the battery assembly 5 according to any of the foregoing embodiments.

In some embodiments, the electronic device 4 further comprises a rear cover 41 that is at least partially transparent, and the film assembly 1 comprises a second glue area 1200, the second glue area 1200 being located at a position corresponding to the transparent portion 411 of the rear cover 41; the film assembly 1 includes the folded region 12, the folded region 12 covers at least a portion of the side 23 and at least a portion of the front 21 of the battery 2, the folded region 12 includes a plurality of sub-folded regions, at least one overlapping region 120 is formed in the front 21 of the battery, and at least a portion of the overlapping region 120 is the second adhesive region 1200.

In some embodiments, the transparent rear cover 41 includes a transparent housing (not labeled) and a decorative board 410, the decorative board 410 is located between the transparent housing and the battery 2, the decorative board 410 is located on the front surface 21 of the battery 2, the decorative board 410 is in an integral structure, and the decorative board 410 has a hollowed-out position, which is the transparent portion 411.

In other embodiments, the decorative board 410 is a split structure, the decorative board 410 has a plurality of pieces, and a gap may be formed between the decorative board 410 and the decorative board 410, or the hollowed-out position is provided on the decorative board 410. The space gap or the hollowed-out position is the perspective part 411.

The hollowed-out position or the interval gap corresponds to the position of the second glue area 1200, and the color of the second glue area 1200 is the same as the color of the decorative board 410, which can make the overall color of the appearance of the electronic device 4 uniform.

The electronic device 4 may be, but is not limited to, a mobile phone, an iPad, a computer, a watch, a camera, etc.

The foregoing is a description of embodiments of the present application, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the embodiments of the present application, and these improvements and modifications are also considered as the protection scope of the present application.

Claims (14)

1. A film layer assembly for at least half-wrapping a battery, the surface of the battery comprising opposing front and back sides, and sides connecting the front and back sides, wherein the film layer assembly comprises a flattened region overlying the back side of the battery and a folded region overlying at least a portion of the sides and at least a portion of the front side of the battery; the partial area of the film layer component is a first glue area, and the glue amount or the adhesive force of the first glue area is larger than that of other areas of the film layer component except the first glue area.

2. The membrane module of claim 1, wherein the front side of the battery is quadrilateral in shape and the area of the fold region corresponding to at least one corner position of the front side of the battery is the first glue region.

3. The film layer assembly of claim 1, wherein the fold region comprises a plurality of sub-fold regions forming at least one overlap region on the front side of the cell.

4. The film layer assembly of claim 3, wherein the fold region comprises a first sub-fold region, a second sub-fold region, and a third sub-fold region;

the first sub-folding area and the second sub-folding area are partially overlapped on the front surface, and the overlapped part is a first overlapped area;

the second sub-folding region and the third sub-folding region are partially overlapped on the front surface, and the overlapped part is a second overlapped region.

5. A film layer assembly as recited in claim 3, wherein at least a portion of the overlap region is a second glue region, the second glue region in the sub-fold region having a glue amount less than or greater than a glue amount of other regions in the sub-fold region.

6. The film layer assembly of claim 5, wherein the second glue area has a color that is less than a first threshold with respect to a color of an area of the battery not covered by the film layer assembly or less than a second threshold with respect to a color of a housing of an electronic device in which the battery is mounted.

7. The film assembly of any of claims 1-6, further comprising a third glue area disposed in the leveling zone, the third glue area comprising a plurality of sub-glue areas, the glue dot density, the viscosity, and the glue amount between the plurality of sub-glue areas being different.

8. The film assembly of claim 7, wherein the third glue area comprises a first sub-glue area, a second sub-glue area, and a third sub-glue area, the first sub-glue area being disposed adjacent to the second sub-glue area, the third sub-glue area being surrounded by the second sub-glue area.

9. The film assembly of claim 8, wherein the first sub-adhesive region is comprised of two adhesive dots of different diameters arranged in a staggered arrangement.

10. The film layer assembly of claim 8, further comprising a tear portion having one end connected to the back side of the battery and corresponding to a position of at least a portion of the second and/or third sub-glue areas.

11. A battery assembly comprising a battery and the film assembly of any one of claims 1-10, the film assembly half-wrapping the battery.

12. The battery assembly of claim 11, wherein the battery comprises a cell and a protective film, a hot melt adhesive is disposed between the cell and the protective film, the film layer assembly is disposed on a side of the protective film remote from the cell, and a projection of the film layer assembly onto the protective film overlaps a projection of the hot melt adhesive onto the protective film.

13. An electronic device comprising a battery assembly according to any one of claims 11-12.

14. The electronic device of claim 13, further comprising an at least partially transparent rear cover, the film layer assembly comprising a second glue area located in a position corresponding to the transparent portion of the rear cover; the film layer assembly comprises a folding area, the folding area covers at least part of the side face and at least part of the front face of the battery, the folding area comprises a plurality of sub-folding areas, at least one superposition area is formed on the front face of the battery by the plurality of sub-folding areas, and at least part of the superposition area is a second glue area.