CN210628426U

CN210628426U - Battery packaging structure, battery pack and electronic equipment

Info

Publication number: CN210628426U
Application number: CN201922049995.1U
Authority: CN
Inventors: 郭志良
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-05-26
Anticipated expiration: 2029-11-22

Abstract

The utility model provides a battery packaging structure, battery pack and electronic equipment, battery packaging structure can include: a base film layer; the first glue layer is arranged on one side of the base film layer; the second glue layer is arranged on the other side of the substrate film layer; and the first ink layer partially covers the first glue layer, a first bonding surface is formed on one side of the substrate film layer, the second ink layer partially covers the second glue layer, and a second bonding surface is formed on the other side of the substrate film layer. The embodiment of the utility model provides a can reduce battery packaging structure's thickness provides the space for the increase of battery capacity, moreover, can improve first glue layer the second glue layer with bonding strength between the base member rete reduces the potential safety hazard that electronic equipment falls because the battery breaks away from the battery compartment and leads to when falling.

Description

Battery packaging structure, battery pack and electronic equipment

Technical Field

The utility model relates to the field of communication technology, especially, relate to a battery packaging structure, battery pack and electronic equipment.

Background

With the extreme pursuit of the user for the use experience, the performance requirement and the appearance requirement of the user for the electronic equipment such as the mobile phone and the tablet computer are higher and higher, the thickness of the electronic equipment is thinner and thinner, and correspondingly, the thickness of each part in the electronic equipment is thinner and thinner. For example, batteries for electronic devices are also becoming thinner and thinner.

In the prior art, a battery packaging structure for packaging a battery may generally include a PET (polyester film) film and a double-sided tape, and specifically, the double-sided tape may be first used to bond the PET film and the battery together to implement packaging of the battery, and then the double-sided tape is bonded on the PET film to fix the PET film on a battery compartment of an electronic device through the double-sided tape.

However, since the double-sided adhesive tape has a relatively thick thickness (typically greater than 0.05 mm), the thickness of the entire battery package structure becomes thick, which easily causes an increase in the thickness of the battery; moreover, when the PET film is bonded with the double faced adhesive tape, bubbles can easily appear between the PET film and the double faced adhesive tape, and the bonding strength between the PET film and the double faced adhesive tape is influenced, so that when the electronic equipment falls or is impacted, the PET film is easily separated from the double faced adhesive tape, the battery is loosened, and then the battery compartment wall is impacted, and safety accidents are caused. That is to say, the existing battery packaging structure is thick, and has great potential safety hazard.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a battery packaging structure, battery pack and electronic equipment is proposed to solve current battery packaging structure not only thickness thick, moreover, have the problem of great potential safety hazard.

In a first aspect, the utility model discloses a battery packaging structure for encapsulate the battery, include:

a base film layer;

a first glue layer disposed on a first side of the base film layer;

the second glue layer is arranged on the other side of the substrate film layer; and

the first ink layer partially covers the first glue layer, a first bonding surface is formed on one side of the base film layer, the second ink layer partially covers the second glue layer, and a second bonding surface is formed on the other side of the base film layer.

In a second aspect, the utility model also discloses a battery pack, include: a battery and the battery packaging structure; wherein the content of the first and second substances,

the battery packaging structure is packaged outside the battery.

A third aspect, the utility model also discloses an electronic equipment, include: the battery pack is provided.

The utility model discloses a following advantage:

in the embodiment of the utility model, one side surface of the basal body film layer is provided with a first glue layer, and the other side surface is provided with a second glue layer; the first ink layer partially covers the first glue layer, a first bonding surface is formed on one side of the substrate film layer, the second ink layer partially covers the second glue layer, and a second bonding surface is formed on the other side of the substrate film layer. In practical application, when the battery packaging structure is used for packaging a battery, the first bonding surface can be used for being connected with the battery, and the second bonding surface can be used for being connected with the battery compartment, so that double-sided adhesive tape can be avoided, the thickness of the battery packaging structure is reduced, a space can be provided for increasing the capacity of the battery, and the capacity of the battery is improved. Moreover, because first glue layer with the second glue layer can direct coating in on the base member rete, can avoid first glue layer the second glue layer with form the bubble between the base member rete, improve first glue layer the second glue layer with bonding strength between the base member rete, like this, when electronic equipment falls or receives the striking, the base member rete is difficult to be followed the battery compartment is gone up to separate, has avoided the potential safety hazard that leads to because the battery breaks away from the battery compartment to a certain extent.

Drawings

Fig. 1 is a cross-sectional view of a battery package structure according to the present invention;

fig. 2 is a schematic structural diagram of another battery packaging structure of the present invention;

fig. 3 is a schematic top view of the battery package structure shown in fig. 2 from the first bonding surface;

fig. 4 is a schematic top view of the battery package structure shown in fig. 2, viewed from the second adhesive surface.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

An embodiment of the utility model provides a battery packaging structure, battery packaging structure can be used for the encapsulation battery, in practical application, is accomplishing the encapsulation back of battery, battery packaging structure can bond in electronic equipment's battery compartment, in order to realize the fixed mounting of battery in the battery compartment.

Referring to fig. 1, a cross-sectional structure of a battery package structure of the present invention is shown, as shown in fig. 1, the battery package structure may specifically include: a base film layer 10;

the first glue layer 11, the first glue layer 11 is arranged on one side of the base film layer 10;

a second glue layer 12, wherein the second glue layer 12 is arranged on the other side of the substrate film layer 10; and

first printing ink layer 13 and second printing ink layer 14, first printing ink layer 13 part shelters from first glue layer 11, forms first bonding face A in one side of base member rete 10, and second printing ink layer 14 part shelters from second glue layer 12, forms second bonding face B in the opposite side of base member rete 10.

The embodiment of the utility model provides an in, the adhesive force of second bonding face B can be greater than first bonding face A's adhesive force when battery packaging structure is used for the encapsulation battery, first bonding face A can be used for with the battery is connected, make first bonding face A with can reliably bond between the battery, possess the detachable performance again, second bonding face B can be used for being connected with the battery compartment, in order to realize second bonding face B with reliable bonding between the battery compartment, like this, when electronic equipment falls or receives the striking, base member rete 10 is difficult to be followed separation on the battery compartment.

In practical application, the first bonding surface a can be used for being connected with the battery, and the second bonding surface B can be used for being connected with the battery compartment, so that the fixed installation of the battery in the battery compartment can be realized without using a double-sided adhesive tape, the thickness of the battery packaging structure is reduced, and further, a space can be provided for increasing the capacity of the battery, and the capacity of the battery is improved. Moreover, because first glue layer 11 and second glue layer 12 can the direct coating on base member rete 10, can avoid forming the bubble between first glue layer 11, second glue layer 12 and the base member rete 10, improve the adhesive strength between first glue layer 11, second glue layer 12 and the base member rete 10, like this, when electronic equipment falls or receives the striking, base member rete 10 is difficult to be followed the battery compartment is gone up to separate, has avoided the potential safety hazard that leads to because the battery breaks away from the battery compartment to a certain extent.

In practical application, the base film layer 10 may be made of a PET film layer, the thickness of the base film layer 10, the first glue layer 11, and the second glue layer 12 is equal to the thickness of the existing PET film, and the thicknesses of the first ink layer 13 and the second ink layer 14 may be about 0.01 mm, that is, the sum of the thicknesses of the first ink layer 13 and the second ink layer 14 (0.02 mm) is much smaller than the thickness of the double-sided tape (0.05 mm), so that the thickness of the battery packaging structure may be reduced, the installation space may be saved, the installation space saved by the battery packaging structure may be conveniently used to arrange the battery, and the capacity of the battery may be increased. For example, in the case where the thickness of the battery packaging structure is reduced by 0.03 mm, the thickness of the battery may be increased by 0.03 mm, and the capacity of the battery may be increased by 40 ma according to the current battery capacity conversion.

The embodiment of the utility model provides an in, can scribble the both sides of base member rete 10 with the glue brush to form first glue layer 11 and second glue layer 12 respectively in the both sides of base member rete 10, then, spout the fat liquoring on first glue layer 11 in order to form first printing ink layer 13, and spout fat liquoring on second glue layer 12 in order to form second printing ink layer 14. Because first glue layer 11 and second glue layer 12 can the direct coating be in on the base member rete 10, can avoid forming the bubble between first glue layer 11, second glue layer 12 and the base member rete 10, improve the bonding strength between first glue layer 11, second glue layer 12 and the base member rete 10, like this, when electronic equipment falls or receives the striking, base member rete 10 is difficult to be followed the battery compartment is gone up the separation, has avoided the potential safety hazard that leads to because the battery breaks away from the battery compartment to a certain extent. In practical applications, the thicker the first glue layer 11 and the second glue layer 12 are, the stronger the adhesiveness is.

Specifically, the first ink layer 13 may partially shield the first glue layer 11, and an area of the first glue layer 11 not shielded by the first ink layer 13 may be exposed, and has adhesiveness, so as to form a first adhesive surface a on one side of the base film layer 10. Similarly, the second ink layer 14 can partially shield the second glue layer 12, and the region on the second glue layer 12 that is not shielded by the second ink layer 14 can be exposed, and has adhesiveness, forming a second adhesive surface B. In practical applications, the larger the exposed area of the first glue layer 11 and the second glue layer 12, the stronger the adhesiveness of the bonding surfaces formed by the glue layers.

In practical applications, the second adhesive surface B needs a larger adhesive force than the first adhesive surface a because of its connection with the battery compartment. For example, the adhesive force of the first adhesive surface A may be 0.9 to 1.3kg/24.5mm, and the adhesive force of the second adhesive surface B may be 2.0 to 3.0kg/24.5 mm.

The embodiment of the utility model provides an in, in order to make the adhesive force of second bonding face B be greater than the adhesive force of first bonding face A, the thickness of second glue layer 12 can be greater than the thickness of first glue layer 11, just, the area that exposes of second glue layer 12 can be greater than the area that exposes of first glue layer 11.

In practical application, the first bonding surface a and the second bonding surface B may be further provided with a piece of backing adhesive paper. Therefore, when the battery packaging structure is used for packaging a battery, the back adhesive paper on the first bonding surface A can be torn off, and the first bonding surface A is bonded on the battery. When the battery is fixed to the battery compartment of the electronic equipment, the back adhesive paper on the second bonding surface B can be torn off, and the second bonding surface B is bonded to the battery compartment, so that the process of bonding the double-sided adhesive tape can be omitted, and the installation cost of the battery is reduced.

Referring to fig. 2, which shows a schematic structural diagram of another battery packaging structure of the present invention, as shown in fig. 2, a plurality of glue through holes 130 are disposed on the first ink layer 13, and the first glue layer 11 is exposed at a position corresponding to the glue through holes 130 to form a first bonding surface a.

In practical application, because the first glue layer 11 at the position corresponding to the glue through hole 130 is exposed, only the glue through hole 130 on the first bonding surface a has adhesiveness, so that the bonding performance of the first bonding surface a can be adjusted by setting the position and size of the glue through hole 130, and the first bonding surface a and the battery can be bonded reliably and have detachable performance.

Alternatively, the first ink layer 13 may include: a first ink seed layer 131 and a second ink seed layer 132 which are provided in a stacked manner; wherein, the first ink seed layer 131 is connected with the first glue layer 11; a plurality of first through holes 1301 are formed in the first ink layer 131; the second ink layer 132 is provided with a second through hole 1302 at a position opposite to the first through hole 1301, and the second through hole 1302 and the first through hole 1301 are overlapped to form the glue-permeable through hole 130; the diameter of the second through-hole 1302 is smaller than the diameter of the first through-hole 1301.

In practical application, because first printing ink layer 13 includes first printing ink layer 131 and second printing ink layer 132 that the range upon range of setting, just so, can improve first printing ink layer 13 to the coverage degree of first glue layer 11, avoid first glue layer 11 to pass through first printing ink layer 13 and overflow, destroy first printing ink layer 13 to the sheltering from nature of first glue layer 11, realize the detachability of battery. Further, the first ink layer 131 and the second ink layer 132 may be printed in two separate printing processes, so that the uniformity of the first ink layer 13 may be improved.

The embodiment of the utility model provides an in, because the second through-hole 1302 of penetrating gluey through-hole 130 is relative with first through-hole 1301, the diameter of second through-hole 1302 is less than the diameter of first through-hole 1301 moreover, like this, just can make the processing property of first through-hole 1301, second through-hole 1302 better, moreover, can make second through-hole 1302 align easily with first through-hole 1301, form penetrating gluey through-hole 130, and then, can realize the detachability of battery.

Specifically, the thicknesses of the first ink layer 1301 and the second ink layer 1302 may be set according to actual conditions, for example, the thicknesses of the first ink layer 1301 and the second ink layer 1302 may be 0.005 mm, respectively. Of course, the thickness of the first ink layer 1301 and the second ink layer 1302 may be other values, for example, 0.004 mm or 0.007 mm, and the specific thickness of the first ink layer 1301 and the second ink layer 1302 may not be limited by the embodiments of the present invention.

Referring to fig. 3, which is a schematic top view of the battery package structure shown in fig. 2 from a first bonding surface, as shown in fig. 3, the base film layer 10 includes a detaching end 101 and a supporting end 102; wherein, the base film layer 10 is provided with a disassembly hole 103, and the disassembly hole 103 is arranged at one end close to the disassembly end 101; the first ink layer 13 forms a first area C, a second area D and a third area E in sequence from the detaching end 101 to the supporting end 102; the diameter of the glue through hole 130 in the first region C is the same as that of the glue through hole 130 in the third region E; the diameter of the glue through hole 130 in the first region C is larger than the diameter of the glue through hole 130 in the second region D.

In practical application, because the diameter of penetrating through-hole 130 that glues on the first region C is the same with the diameter of penetrating through-hole 130 that glues on the third region E, the diameter of penetrating through-hole 130 that glues on the first region C is greater than the diameter of penetrating through-hole 130 that glues on the second region D, the bonding strength of first region C, third region E is greater than the bonding strength of second region D, moreover, because first region C, third region E set up the both sides at second region D, like this, can improve the bonding stability of whole first bonding face A, and then, can improve battery packaging structure's bonding stability.

Specifically, need will battery packaging structure follow when dismantling on the battery, can dismantle in the position of disassembly hole 103 battery packaging structure through prizing disassembly hole 103, can prize first region C, second region D and third region E in proper order, and then, will finally dismantle on the battery packaging structure, conveniently carry out the detection or the maintenance of battery.

Optionally, a fourth area F may be further disposed on the first ink layer 13, where the fourth area F may be a hollow area, so that the first glue layer 11 opposite to the fourth area F may be exposed to form a strong glue area, and thus, the adhesive force of a position on the first bonding surface a corresponding to the fourth area F is the largest. The fourth region F may be disposed at the detachment end 101 and the support end 102, so that when the first bonding surface a is bonded to the battery, the detachment end 101 and the support end 102 are bonded to the battery more firmly, thereby improving the connection reliability between the battery package structure and the battery.

Referring to fig. 4, which is a schematic top view illustrating the battery package structure shown in fig. 2 viewed from the second bonding surface, a plurality of hollow areas 140 are disposed on the second ink layer 14, and the second glue layer 12 is exposed at a position opposite to the hollow areas 140 to form a second bonding surface B.

Specifically, the position and size of the hollow area 140 may be set according to actual conditions. In practical applications, the hollow area 140 has adhesiveness, so that the hollow area 140 is disposed at a position away from the position where adhesion cannot be performed. For example, the non-adhesive position may be an area that needs to be isolated from the battery, or an area where other electronic devices are arranged, so as to avoid the connection between the hollow area 140 on the second adhesive surface B and the other electronic devices.

In the embodiment of the present invention, the second ink layer 14 may include: a third ink layer 141 and a fourth ink layer 142 which are provided in a stacked manner; wherein the third ink seed layer 141 is connected to the second glue layer 12; a plurality of first hollow-out regions 1401 are arranged on the third ink layer 141; the fourth ink layer 142 is provided with a second hollow area 1402 at a position opposite to the first hollow area 1401, and the second hollow area 1402 and the first hollow area 1401 are overlapped to form the hollow area 140.

In practical application, the second ink layer 14 includes the third ink layer 141 and the fourth ink layer 142 stacked on each other, so that the coverage degree of the second ink layer 14 on the second glue layer 12 can be improved, the second glue layer 12 is prevented from overflowing through the second ink layer 14, and the shielding performance of the second ink layer 14 on the second glue layer 12 is damaged. Also, the third ink layer 141 and the fourth ink layer 142 may be printed in two separate printing processes, so that the uniformity of the second ink layer 14 may be improved.

In practical applications, the second ink layer 14 may be transparent ink or colored ink, so that the cell information and the specific marks printed on the substrate film layer 10 can be transmitted through the second ink layer 14.

To sum up, the utility model discloses battery packaging structure include following advantage at least:

in the embodiment of the utility model, one side surface of the basal body film layer is provided with a first glue layer, and the other side surface is provided with a second glue layer; the first ink layer partially shields the first glue layer, a first bonding surface is formed on one side of the substrate film layer, and the second ink layer partially shields the second glue layer. In practical application, when the battery packaging structure is used for packaging a battery, the first bonding surface can be used for being connected with the battery, and the second bonding surface can be used for being connected with the battery compartment, so that double-sided adhesive tape can be avoided, the thickness of the battery packaging structure is reduced, a space can be provided for increasing the capacity of the battery, and the capacity of the battery is improved. Moreover, because first glue layer with the second glue layer can direct coating in on the base member rete, can avoid first glue layer the second glue layer with form the bubble between the base member rete, improve first glue layer the second glue layer with bonding strength between the base member rete, like this, when electronic equipment falls or receives the striking, the base member rete is difficult to be followed the battery compartment is gone up to separate, has avoided the potential safety hazard that leads to because the battery breaks away from the battery compartment to a certain extent.

The embodiment of the utility model provides a still provide a battery pack, battery pack specifically can include: a battery and the battery packaging structure; wherein the battery packaging structure is packaged outside the battery.

The embodiment of the utility model provides an in, battery packaging structure's first bonding face can be used for with the battery is connected, the second bonding face can be used for being connected with the battery compartment, like this, just can avoid using the double faced adhesive tape, reduces battery pack's thickness, and then, can do the increase of battery capacity provides the space, improves the capacity of battery. Moreover, because among the battery packaging structure, first glue layer and second glue layer can direct coating on the base member rete, can avoid first glue layer the second glue layer with form the bubble between the base member rete, improve first glue layer the second glue layer with bonding strength between the base member rete, like this, when electronic equipment falls or receives the striking, the base member rete is difficult to be followed the battery compartment is gone up to separate, has avoided to a certain extent because the potential safety hazard that the battery broke away from the battery compartment and leads to.

An embodiment of the present invention provides an electronic device, the electronic device may include: the battery pack is provided. The electronic device may include, but is not limited to, any one of a mobile phone, a tablet computer, and a wearable device, and the embodiment of the present invention may not be limited to the specific type of the electronic device.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The above detailed description is made on a battery packaging structure, a battery assembly and an electronic device provided by the present invention, and specific examples are applied herein to explain the principle and the implementation of the present invention, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A battery packaging structure for packaging a battery, comprising:

a base film layer;

the first glue layer is arranged on one side of the base film layer;

2. The battery packaging structure according to claim 1, wherein the first ink layer is provided with a plurality of glue through holes, and the first glue layer is exposed at positions opposite to the glue through holes.

3. The battery packaging structure of claim 2, wherein the first ink layer comprises: a first ink seed layer and a second ink seed layer which are arranged in a stacked manner; wherein the content of the first and second substances,

the first ink seed layer is connected with the first glue layer;

a plurality of first through holes are formed in the first ink-spreading layer;

the second ink-spreading layer is provided with a second through hole at a position opposite to the first through hole, and the second through hole and the first through hole are overlapped to form the glue-permeable through hole;

the diameter of the second through hole is smaller than that of the first through hole.

4. The battery packaging structure of claim 2, wherein the base film layer comprises a detachment end and a support end; wherein the content of the first and second substances,

the substrate film layer is provided with a dismounting hole, and the dismounting hole is arranged at one end close to the dismounting end;

from the detaching end to the supporting end, the first ink layer sequentially comprises a first area, a second area and a third area;

the diameter of the glue through hole in the first area is the same as that of the glue through hole in the third area;

the diameter of the glue through hole of the first area is larger than that of the glue through hole of the second area.

5. The battery packaging structure according to claim 4, wherein the first ink layer is provided with a fourth region at a position near the detaching end and the supporting end;

and the adhesive force of the position corresponding to the fourth area on the first adhesive surface is the largest.

6. The battery packaging structure according to claim 1, wherein a plurality of hollowed-out areas are disposed on the second ink layer, and the second glue layer is exposed at a position opposite to the hollowed-out areas.

7. The battery packaging structure of claim 6, wherein the second ink layer comprises: a third ink layer and a fourth ink layer which are arranged in a stacked manner; wherein the content of the first and second substances,

the third ink layer is connected with the second glue layer;

a plurality of first hollow-out areas are arranged on the third ink layer;

and a second hollowed-out area is arranged at the position, opposite to the first hollowed-out area, of the fourth ink layer, and the second hollowed-out area and the first hollowed-out area are overlapped to form the hollowed-out area.

8. The battery packaging structure of claim 1, wherein the thickness of the second glue layer is greater than the thickness of the first glue layer, and an exposed area of the second glue layer is greater than an exposed area of the first glue layer.

9. A battery assembly, comprising: a battery and the battery packaging structure of any one of claims 1 to 8; wherein the content of the first and second substances,

the battery packaging structure is packaged outside the battery.

10. An electronic device, comprising: the battery module of claim 9.