CN112909387A

CN112909387A - Button cell, button cell packaging method and power utilization device

Info

Publication number: CN112909387A
Application number: CN202110250146.1A
Authority: CN
Inventors: 黄小钊; 李超鹏; 曹轶芳; 罗哲
Original assignee: Dongguan Nvt Technology Co Ltd
Current assignee: Dongguan Nvt Technology Co Ltd
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-06-04
Also published as: CN113823867B; CN113823867A

Abstract

The application provides a button cell, including packaging shell and electric core, electric core locates in the packaging shell, the packaging shell includes first casing and second casing, first casing with the helicitic texture that is equipped with the looks adaptation between the second casing, just first casing with the second casing passes through the helicitic texture connects. The application also relates to a packaging method and a power utilization device of the button cell, the button cell is convenient to assemble in the process of manufacturing procedure, and meanwhile, the situation of liquid leakage caused by untight assembly of the button cell can be prevented.

Description

Button cell, button cell packaging method and power utilization device

Technical Field

The application relates to the technical field of battery manufacturing, in particular to a button battery, a button battery packaging method and an electric device.

Background

At present, with the rapid development of the electronic industry, consumer demands for electronic products are increasing, wherein, for example, earphones, which are changed according to the development of mobile terminals, are changed. With the increasing design of the earphone-free hole of the mobile terminal, the earphone is gradually changed from a wired type to a wireless type, and the design of the earphone-free hole of the mobile terminal drives the rapid development of the wireless earphone. Among them, the button cell has been rapidly developed as a main power supply product of the wireless headset, but the button cell has problems of difficulty in an assembling process and poor sealing property.

Disclosure of Invention

In view of the above, it is desirable to provide a button cell, a method for packaging the button cell, and an electric device, which are capable of improving the assembly efficiency and enhancing the sealing performance of the button cell.

The embodiment of the application provides a button battery, including packaging shell and electric core, the electric core is located in the packaging shell, the packaging shell includes first casing and second casing, first casing with the helicitic texture of looks adaptation is equipped with between the second casing, just first casing with the second casing passes through the helicitic texture is connected.

Foretell button cell through the helicitic texture that sets up the looks adaptation between first casing and second casing for button cell's equipment is more convenient, and simultaneously, helicitic texture has the arc wall, and first casing and second casing pass through the arc wall lock and connect, and the arc wall can promote the leakproofness between first casing and the second casing, reduces the button cell and the condition of weeping appears.

In one possible implementation manner, the threaded structure includes a first threaded member and a second threaded member, the first threaded member is integrally formed with the first housing, the second threaded member is integrally formed with the second housing, and the first threaded member and the second threaded member are connected through a thread, so that the first housing is connected with the second housing. The first shell and the first screw connector are integrally formed, and the second shell and the second screw connector are integrally formed, so that the first shell and the second shell are more convenient to connect.

In a possible implementation manner, the first housing includes a first cover and a first sidewall provided on the first cover, the second housing includes a second cover and a second sidewall provided on the second cover, the first screw is formed on the first sidewall, and the second screw is formed on the second sidewall.

In one possible implementation manner, the first screw connector is formed on a surface of the first casing facing away from the battery cell, and the second screw connector is formed on a surface of the second casing close to the battery cell.

In a possible implementation manner, the thread structure includes a first screw and a second screw, the first screw is disposed on the surface of the first casing departing from the battery core, the second screw is disposed on the surface of the second casing close to the battery core, and the first screw is connected to the second screw, so that the first casing is connected to the second casing. On locating first casing and second casing with first screwed union piece and second screwed union piece respectively, also can reach the effect of more convenient first casing of connection and second casing.

In one possible implementation, the first screw connector and the second screw connector are hot melt adhesives with threads. Form first spiro union piece and second spiro union piece through the hot melt adhesive, when in certain temperature range, inseparabler that first spiro union piece and second spiro union piece can be connected promotes button cell's stability of connecting.

In one possible implementation manner, the first screw member and the second screw member respectively include a plurality of concave portions and connecting portions, and the concave portions and the connecting portions are arranged at intervals. Through the concave part and the connecting part which are connected, the tightness of the button cell is improved, and the situation that liquid flows into the button cell or electrolyte of the button cell flows out is reduced.

In a possible implementation manner, the battery further includes a sealing member, which is provided at a joint of the first case and the second case, and is used for sealing the first case and the second case. Through setting up the sealing member, when promoting first casing and second casing junction sealing strength, can also separate electric core and encapsulation shell.

The embodiment of the application also provides a packaging method of the button cell, which comprises the following steps:

forming a first housing having a first screw member and a second housing having a second screw member by extrusion molding;

disposing a cell within the first casing or the second casing;

connecting the first screw member and the second screw member to connect the first housing and the second housing.

The embodiment of the application also provides an electric device, which comprises a body and any one of the button batteries, wherein the button battery is contained in the body.

The button cell, the button cell packaging method and the power consumption device provided by the application enable the button cell assembly process to be more convenient and fast by arranging the threaded structure on the packaging shell, and enable the threaded structure to have the arc-shaped wall to play a sealing role while being connected.

Drawings

Fig. 1 is a schematic perspective view of a button cell in an embodiment of the present application.

Fig. 2 is an exploded view of a button cell according to an embodiment of the present disclosure.

Fig. 3 is a schematic perspective view of a button cell in another embodiment of the present application.

Fig. 4 is an exploded view of the button cell shown in fig. 3.

Fig. 5 is a front view of a button cell according to another embodiment of the present disclosure.

Fig. 6 is an exploded view of the button cell shown in fig. 5.

Fig. 7 is a schematic sectional view of the button battery shown in fig. 3 along the a-a direction.

Fig. 8 is an exploded view of a button cell with a seal according to an embodiment of the present disclosure.

Fig. 9 is a flowchart illustrating a method for packaging a button cell in an embodiment of the present application.

Fig. 10 is a schematic perspective view of an electric device according to an embodiment of the present application.

Description of the main elements

Button cell 100

Package case 10

First housing 11

First cover 111

First side wall 112

Terminal post 113

Second housing 12

Second cover 121

Second side wall 122

Battery cell 20

First pole piece 21

Second pole piece 22

Thread structure 30

First screw member 31

Second screw member 32

Recesses

311, 321

Connecting

parts

312, 322

Seal 40

Power utilization device 200

Body 60

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "rear," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Through adopting foretell button cell, set up the helicitic texture of looks adaptation between first casing and second casing, at the in-process of equipment button cell, the connection between first casing and the second casing is more convenient. Simultaneously, the helicitic texture has the arc wall, and first casing and second casing are when carrying out the spiro union, and the mutual lock joint of arc wall is connected, and the leakproofness between first casing and the second casing can be promoted in the connection between the arc wall to reduce button cell and appear the condition of weeping.

disposing a cell within the first casing or the second casing;

Through the packaging method, the button cell is directly assembled through the first screw connector and the second screw connector which are connected, so that a complete cell whole is formed, and the assembling efficiency of the button cell is further improved.

The embodiment of the application also provides an electric device, which comprises a body and the button battery, wherein the button battery is contained in the body.

This power consumption device adopts foretell button cell, and button cell's packaging efficiency promotes on the one hand to can accelerate power consumption device's packaging efficiency, on the other hand, button cell's sealing performance strengthens, reduces the probability that the button cell appears the weeping when locating power consumption device inside, has promoted power consumption device's security.

Some embodiments will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1 and fig. 2, a button battery 100 is provided, which includes an encapsulating case 10 and a battery cell 20 disposed in the encapsulating case 10, where the encapsulating case 10 is used to protect the battery cell 20 disposed therein.

Referring to fig. 2, the package 10 includes a first housing 11 and a second housing 12, a screw structure 30 is disposed between the first housing 11 and the second housing 12, and the first housing 11 and the second housing 12 are connected by the screw structure 30.

Preferably, in an embodiment, the first case 11 is an upper cover of the button cell 100, and the second case 12 is a bottom cover of the button cell 100. It is understood that in other embodiments, the first housing 11 and the second housing 12 may be replaced, for example, the first housing 11 may be used as a bottom cover, and the second housing 12 may be used as an upper cover.

The first housing 11 includes a first cover 111 and a first sidewall 112 disposed on the first cover 111, preferably, the first cover 111 is a circular sheet structure, the first sidewall 112 is a hollow ring structure, and the first sidewall 112 is fixed on the periphery of the first cover 111, and both of them form a hollow cylinder without a bottom cover. In an embodiment, the first cover 111 and the first sidewall 112 may be an integrally formed structure, and the shape of the first housing 11 is not limited thereto, for example, the first cover 111 and the first sidewall 112 may also form a hollow and bottom-free oval structure.

In an embodiment, a pole 113 is disposed on the first cover 111, and the pole 113 is insulated from the first cover 111. When the battery cell 20 is disposed in the package case 10, the battery cell 20 is electrically connected to the terminal 113, so that when the button cell 100 is used, it can provide power to the power consumption device 200.

The second casing 12 includes a second cover 121 and a second sidewall 122 disposed on the second cover 121, preferably, the second cover 121 is a circular sheet structure, the second sidewall 122 is a hollow ring structure, and the second sidewall 122 is fixed on the periphery of the second cover 121, and both of them form a hollow column without an upper cover. The second casing 12 and the first casing 11 cooperate to be able to accommodate the battery cell 20. Preferably, the second cover 121 may be connected to the battery cell 20 as a conductive structure, so that the button cell 100 can provide power to an electric device. Preferably, the pole 113 on the first cover 111 serves as a positive electrode of the button cell 100, and the second cover 121 serves as a negative electrode of the button cell 100. When the button cell 100 is disposed in an electric device, the terminal post 113 and the second cover 121 are respectively in electrical communication with a structure of the electric device.

In another embodiment, the first cover 111 and the second cover 121 are respectively connected to the battery cell 20 as a conductive structure, and the first cover 111 and the second cover 121 are insulated from each other; when the button cell 100 is disposed in an electric device, the first cover 111 and the second cover 121 are respectively in electrical communication with the structure of the electric device.

In an embodiment, the second cover 121 and the second sidewall 122 may be an integral structure, and the shape of the second casing 12 is not limited thereto, for example, the second cover 121 and the second sidewall 122 may also form a hollow and bottom-free oval structure.

Referring to fig. 2, the battery cell 20 is accommodated in the package casing 10, and in an embodiment, the battery cell 20 includes a plurality of first pole pieces 21 and a plurality of second pole pieces 22, and the battery cell 20 is formed by stacking or winding the plurality of first pole pieces 21 and the plurality of second pole pieces 22. The structure of the battery cell 20 is common in the battery field, and is not described herein again.

Referring to fig. 2, the thread structure 30 includes a first thread member 31 and a second thread member 32, the first thread member 31 is disposed on the first housing 11, the second thread member 32 is disposed on the second housing 12, and the first housing 11 and the second housing 12 are connected by the thread connection between the first thread member 31 and the second thread member 32.

In an embodiment, the first screw 31 and the first casing 11 are an integral structure, and the first screw 31 is formed on a surface of the first casing 11 facing away from the battery cell 20. Preferably, the first screw 31 is formed on a surface of the first sidewall 112 facing away from the battery cell 20. The second screw 32 and the second casing 12 are integrally formed, and the second screw 32 is formed on the surface of the second casing 12 close to the battery cell 20. Preferably, the second screw 32 is formed on the surface of the second sidewall 122 close to the battery cell 20.

When the first housing 11 and the second housing 12 are to be assembled, by rotating the first housing 11 and the second housing 12 in opposite directions, the first screw 31 and the second screw 32 provided on the first housing 11 and the second housing 12 are engaged with each other to fix the first housing 11 and the second housing 12.

The thread structure 30 and the package case 10 are used as an integrated structure, so that the assembling efficiency of the package case 10 can be further improved in the process of assembling the package case 10.

Referring to fig. 3 and 4, fig. 3 and 4 illustrate an embodiment in which the thread structure 30 directly forms a portion of the package 10. Specifically, the first screw 31 directly forms the first sidewall 112 of the first housing 11, and the second screw 32 directly forms the second sidewall 122 of the second housing 12. When the first housing 11 and the second housing 12 are assembled, the first housing 11 and the second housing 12 are also rotated in opposite directions, and the first side wall 112 formed by the first screw 31 and the second side wall 122 formed by the second screw 32 are engaged with each other, so that the first housing 11 and the second housing 12 are fixed.

By directly forming the first screw 31 into the first side wall 112 of the first casing 11 and directly forming the second screw 32 into the second side wall 122 of the second casing 12, on one hand, the assembling efficiency of the first casing 11 and the second casing 12 can be improved, and on the other hand, the cost for manufacturing the first casing 11 and the second casing 12 is also saved, the space utilization rate of the first casing 11 and the second casing 12 is also improved, and the space for accommodating the battery cell 20 is further increased.

Referring to fig. 5 and 6, fig. 5 and 6 illustrate an embodiment in which the screw structure 30 is detachably disposed on the package housing 10. Specifically, the first screw 31 is detachably disposed on a surface of the first casing 11 facing away from the battery cell 20. Preferably, the first screw 31 is detachably disposed on a surface of the first side wall 112 facing away from the battery cell 20. The second screw 32 is detachably disposed on a surface of the second casing 12 close to the battery cell 20. Preferably, the second screw 32 is detachably disposed on the surface of the second sidewall 122 close to the battery cell 20.

Likewise, when the first housing 11 and the second housing 12 are to be assembled, the first housing 11 and the second housing 12 are operated such that the first screw 31 and the second screw 32 are engaged with each other to fix the first housing 11 and the second housing 12.

By detachably arranging the first screw 31 and the second screw 32 on the first housing 11 and the second housing 12, respectively, when the first screw 31 and/or the second screw 32 cannot be engaged, the first screw 31 and/or the second screw 32 can be replaced without replacing the first housing 11 and/or the second housing 12, which saves the cost of the button cell 100.

Referring to fig. 2, 6 and 7, the first screw connector 31 and the second screw connector 32 respectively include a plurality of

recesses

311 and 321 and a plurality of connecting

portions

312 and 322, and the

recesses

311 and 321 and the connecting

portions

312 and 322 are disposed at intervals. In one embodiment, the

recesses

311, 321 are substantially V-shaped in cross-section, wherein "substantially" only the surface is what appears. It will be appreciated that in other embodiments, the cross-section of the

recesses

311, 321 may be replaced by other shapes, such as a U-shape.

When the first housing 11 and the second housing 12 are fixed, the recess 311 of the first screw 31 and the recess 321 of the second screw 32 correspond to each other so as to be engaged with each other. Accordingly, the connecting portion 312 of the first screw 31 corresponds to the connecting portion 322 of the second screw 32.

Preferably, the

concave portions

311 and 321 are recessed toward the battery cell 20, when the

concave portions

311 and 321 are V-shaped, tip portions of the concave portions are closer to the battery cell 20 than the connecting

portions

312 and 322, when liquid, such as water, flows to the button cell 100, and if the liquid flows from the connecting

portions

312 and 322 between the first screw 31 and the second screw 32, the

concave portions

311 and 321 are recessed toward the battery cell 20, so that an included angle exists between a side wall of the

concave portions

311 and 321 and the connecting

portions

312 and 322, and a side wall of the

concave portions

311 and 321 can block the inflow of the liquid. The plurality of

recesses

311, 321 and the connecting

portions

312, 322 are provided, so that the inflow distance of the liquid is increased, and each

recess

311, 321 blocks the liquid, so that the situation that the liquid flows from between the first screw 31 and the second screw 32 to the inside of the packaging shell 10 can be relieved, and the sealing performance of the button cell 100 is improved. In addition, the electrolyte inside the button cell 100 can also be prevented from being exposed.

Preferably, in an embodiment, the first screw member 31 and the second screw member 32 are hot melt adhesives with threads. The first screw connector 31 and the second screw connector 32 are made of hot melt adhesive, and according to the property of the hot melt adhesive, the first screw connector 31 and the second screw connector 32 can be connected more tightly in the occlusion process, so that the connection stability of the first shell 11 and the second shell 12 is improved.

It is understood that, in other embodiments, the first screw 31 and the second screw 32 may be made of the same material as the first cover 111 of the first housing 11 and the second cover 121 of the second housing 12, so as to facilitate the integral molding of the screw structure 30 and the package 10.

Referring to fig. 8, fig. 8 shows a case where the button cell 100 is provided with a sealing member 40. In one embodiment, the sealing member 40 is an annular sheet-like structure and is disposed between the first housing 11 and the second housing 12 for sealing the first housing 11 and the second housing 12. Preferably, the sealing element 40 is disposed between the first screw member 31 and the second screw member 32, and when the first screw member 31 and the second screw member 32 are engaged, the sealing element 40 can deform along with the connection condition of the screw structure 30, for example, the sealing element 40 corresponding to the

concave portion

311, 321 extends into the

concave portion

311, 321, and the sealing element 40 corresponding to the connecting

portion

312, 322 is attached to the connecting

portion

312, 322.

Preferably, the sealing member 40 is a barrier film. While the sealing performance of the button cell 100 can be further improved by providing the sealing member 40 while the sealing performance of the button cell 100 is improved by the thread structure 30, it is understood that in other embodiments, the sealing member 40 may be replaced by other structures with equivalent efficacy or function.

Referring to fig. 2 in combination with fig. 9, an embodiment of the present application further provides a method for packaging a button cell, including the following steps:

s100, forming a first shell with a first screw connector and a second shell with a second screw connector by extrusion forming;

s101: disposing a cell within the first casing or the second casing;

s102: connecting the first screw member and the second screw member to connect the first housing and the second housing.

In step S100, the first and second housings may be extruded into a desired shape by an extruder. When the first screw connector and the second screw connector are respectively arranged on the first shell and the second shell, the first screw connector can be simultaneously formed on the first shell through an extruder, and the second screw connector can be formed on the second shell. When the first screw member directly forms the first side wall of the first shell, and the second screw member directly forms the second side wall of the second shell, the first screw member and the second screw member can be directly formed by extrusion through the extruder. When the first screw connector is detachably arranged on the first shell, the second screw connector is detachably arranged on the second shell, the first shell and the second shell are extruded and formed by an extruder, the first screw connector is formed on the first shell in an injection molding mode, the second screw connector is formed on the second shell in an injection molding mode, and for example, hot melt adhesive is formed on the first shell and the second shell in an injection molding mode.

In step S101, a battery cell is disposed in the first casing or the second casing, and the battery cell may be disposed behind the second casing through a mechanical operation, for example, a manipulator. It is understood that when the battery cell is mechanically disposed in the first casing or the second casing, the battery cell is electrically connected to the first casing or the second casing.

In step S102, after the battery cell is disposed in the first casing or the second casing, the first casing and the second casing are assembled and fixed by connection between a first screw and a second screw.

Preferably, in step S101, a sealing member may be further disposed on the first housing or the second housing, and the sealing member may further improve the sealing property between the first housing and the second housing.

Preferably, in step S101, when the battery cell is assembled with the first casing or the second casing, an insulating member may be disposed between the first casing and the battery cell, and when the first casing is made of a metal material, the battery cell and the first casing may be separated by the insulating member.

Referring to fig. 10, an electric device 200 is further provided in an embodiment of the present application, where the electric device 200 includes a body 60 and the button cell 100 in the above embodiment, and the button cell 100 is accommodated in the body 60. The electric device 200 adopts the button cell 100, so that all the beneficial effects of the button cell 100 are achieved, and the details are not repeated herein.

Preferably, the powered device 200 can be a smart wearable device, such as a wireless headset, or a lighting device, such as a small flashlight. Correspondingly, the body 60 can be in a headset structure or a flashlight structure. It is understood that the power utilization device 200 is not limited thereto, but may be other devices capable of employing the button cell 100.

To sum up, according to the button cell 100, the button cell 100 packaging method and the electric device 200 provided in the embodiment of the present application, the packaging case 10 of the button cell 100 is provided with the thread structure 30, so that the packaging case 10 can be engaged together, the assembly efficiency of the packaging case 10 is improved, the sealing performance of the packaging case 10 is also better, the situation that liquid flows into the button cell 100 or electrolyte flows out from the button cell 100 is improved, and the safety of the button cell 100 is improved.

In addition, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present application, and that suitable changes and modifications to the above embodiments are within the scope of the disclosure of the present application as long as they are within the true spirit and scope of the present application.

Claims

1. A button cell, comprising:

packaging the shell;

the battery cell is arranged in the packaging shell;

the packaging shell is characterized by comprising a first shell and a second shell, wherein a matched thread structure is arranged between the first shell and the second shell, and the first shell and the second shell are connected through the thread structure.

2. The button cell according to claim 1, wherein the threaded structure includes a first threaded member and a second threaded member, the first threaded member is integrally formed with the first housing, the second threaded member is integrally formed with the second housing, and the first threaded member and the second threaded member are connected by a thread, thereby connecting the first housing and the second housing.

3. The button cell of claim 2, wherein the first housing includes a first cover and a first sidewall disposed on the first cover, and the second housing includes a second cover and a second sidewall disposed on the second cover, the first screw being formed on the first sidewall and the second screw being formed on the second sidewall.

4. The button cell of claim 3, wherein the first screw is formed on a surface of the first housing facing away from the cell, and the second screw is formed on a surface of the second housing facing toward the cell.

5. The button cell of claim 1, wherein the threaded structure comprises a first threaded member and a second threaded member, the first threaded member is disposed on a surface of the first casing facing away from the cell, the second threaded member is disposed on a surface of the second casing close to the cell, and the first threaded member and the second threaded member are connected to connect the first casing and the second casing.

6. The button cell of claim 5, wherein said first and second threaded members are threaded hot melt adhesives.

7. The button cell according to claim 2 or 5, wherein the first and second screw elements each comprise a plurality of recesses and connecting elements, the recesses and connecting elements being arranged at intervals.

8. The button cell of claim 1, further comprising a seal disposed at the junction of the first and second housings for sealing the first and second housings.

9. A packaging method of a button cell is characterized by comprising the following steps:

disposing a cell within the first casing or the second casing;

10. An electric device comprising a body, characterized in that the electric device further comprises a button cell according to any one of claims 1 to 8, the button cell being housed in the body.