CN216529269U

CN216529269U - Button cell encapsulation, button cell and electronic equipment

Info

Publication number: CN216529269U
Application number: CN202122543315.9U
Authority: CN
Inventors: 骆伟光; 陈志勇
Original assignee: Guangdong Mic Power New Energy Co Ltd
Current assignee: Guangdong Mic Power New Energy Co Ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-05-13
Anticipated expiration: 2031-10-21

Abstract

The utility model relates to a button cell encapsulation, a button cell and an electronic device, wherein the button cell encapsulation comprises: the shell is provided with an opening, and the opening faces to the electric connection end of the button cell; a cover plate covering the opening; the metal piece is arranged on the cover plate; the insulating sealing element is arranged between the metal piece and the cover plate; the battery cell is arranged inside the shell and is electrically connected with the metal piece and the shell; the insulating part is positioned on the first leading-out part on the surface of the electric connection end, the first leading-out part is provided with a first end and a second end, the first end is electrically connected with the metal part, and the second end is positioned on one side of the insulating part, which is far away from the cover plate; the second leading-out piece is provided with a third end and a fourth end, the third end is electrically connected with the shell, and the fourth end is positioned on one side, far away from the cover plate, of the insulating piece.

Description

Button cell encapsulation, button cell and electronic equipment

Technical Field

The utility model relates to the technical field of button batteries, in particular to a button battery package, a button battery and electronic equipment.

Background

At present, button batteries are generally inner shells, outer shells and rubber rings, and the rubber rings are arranged between the inner shells and the outer shells to form batteries with integrated structures. The button cell needs a structure for leading out an electrode, and the conventional structure of the leading-out electrode is easy to contact with a shell to cause short circuit when being extruded or collided by the outside.

Therefore, a new technical solution is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a button cell package, a button cell and a new technical scheme of electronic equipment.

According to a first aspect of the utility model, a button cell package is provided, comprising:

the shell is provided with an opening, the opening faces to an electric connection end of the button cell, and the inside of the shell is communicated with the outside through the opening;

the cover plate covers the opening, and a first through hole is formed in the cover plate;

a metal piece disposed on the cover plate;

the insulating sealing element is arranged between the metal piece and the cover plate, a second through hole is formed in the insulating sealing element and is communicated with the first through hole, and the metal piece covers the second through hole;

the battery cell is arranged inside the shell and is electrically connected with the metal piece and the shell;

the insulating part is positioned on the surface of the electric connection end, a third through hole is formed in the insulating part, and the metal part is exposed to the third through hole;

the first leading-out piece is provided with a first end and a second end, the first end is electrically connected with the metal piece, and the second end is positioned on one side of the insulating piece far away from the cover plate;

a second lead-out member having a third end electrically connected to the housing and a fourth end on a side of the insulator remote from the cover plate.

Optionally, the metal piece includes a bottom plate and a boss disposed on the bottom plate, the bottom plate is located inside the cover plate, the boss exposes the third through hole, the first end is electrically connected to the boss, and the battery cell is electrically connected to the bottom plate.

Optionally, the insulator has an annular portion disposed around the third through hole, the annular portion extending between an inner wall of the first through hole and the boss.

Optionally, the metal piece includes a bottom plate and a boss disposed on the bottom plate, the bottom plate is disposed on the outer side of the cover plate, the insulating member is disposed on the outer side of the bottom plate, the boss extends into the first through hole, the boss is electrically connected to the battery cell, and the bottom plate is electrically connected to the first end.

Optionally, the boss is a trapezoidal table, and a size of a side of the trapezoidal table close to the base plate is larger than a size of a side of the trapezoidal table far from the base plate.

Optionally, the second end is provided with a first extending portion, and the first extending portion is bent towards one side of the second end, which is far away from the insulating member.

Optionally, the fourth end is provided with a second extending portion, and the second extending portion bends toward a side of the fourth end away from the insulating member.

Optionally, the first lead-out member and the second lead-out member are wires or metal sheets.

According to a second aspect of the utility model, a button cell is provided, which comprises a button cell package according to any one of the first aspects.

According to a third aspect of the present invention, there is provided an electronic device comprising the button battery according to the second aspect.

The utility model has the technical effects that the insulation part is arranged to insulate the first leading-out part and the second leading-out part which are led out to the electric connection end from the cover plate, so that the first leading-out part and the second leading-out part can be prevented from contacting the cover plate, and the problem of short circuit is effectively avoided.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is one of schematic structural diagrams of a button cell package in one embodiment of the present disclosure.

Figure 2 is a schematic structural view of a metallic article in one embodiment of the present disclosure.

Fig. 3 is a second schematic structural diagram of a button cell package according to an embodiment of the disclosure.

Fig. 4 is a third schematic structural diagram of a button cell package in an embodiment of the disclosure.

Description of reference numerals:

1-shell, 2-cover plate, 3-metal piece, 30-bottom plate, 31-lug boss, 4-insulating sealing piece, 5-battery core, 51-first pole lug, 52-second pole lug, 6-insulating piece, 7-first leading-out piece, 71-first extending part, 8-second leading-out piece and 81-second extending part.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

According to one embodiment of the present disclosure, there is provided a button cell package, as shown in fig. 1 to 4, including: the battery comprises a shell 1, a cover plate 2, a metal piece 3, an insulating sealing piece 4, a battery core 5, an insulating piece 6, a first leading-out piece 7 and a second leading-out piece 8.

The button cell comprises a shell 1, wherein the shell 1 is provided with an opening, the opening faces to an electric connection end of the button cell, and the inside of the shell 1 is communicated with the outside through the opening. The electrode of the button cell can be led out to the end part so as to facilitate the electrical connection of the button cell and an external circuit, and the end part is an electrical connection end of the button cell.

And the cover plate 2 covers the opening, and a first through hole is formed in the cover plate 2. The cover plate 2 is assembled with the shell 1, so that the interior of the shell 1 forms an inner cavity of the whole button cell package.

And the metal piece 3 is arranged on the cover plate 2.

The insulating sealing element 4 is arranged between the metal piece 3 and the cover plate 2, a second through hole is formed in the insulating sealing element 4 and communicated with the first through hole, and the metal piece 3 covers the second through hole. The insulating sealing member 4 forms an insulating and sealing function between the metal member 3 and the cover plate 2. The second through hole is communicated with the first through hole to form a channel, the metal piece 3 covers the second through hole to form a sealing effect at the end part of the second through hole, so that the structure of the metal piece 3 forms a sealing effect on the channel formed by the second through hole and the first through hole, and the cover plate 2 forms a seal at the opening position.

The battery cell 5 is arranged inside the shell 1, and the battery cell 5 is electrically connected with the metal piece 3 and the shell 1. The metal piece 3 and the shell 1 are used for leading out an electrode of the battery cell 5. The metal part 3 can be electrically connected with one electrode of the battery cell 5, and the shell 1 is electrically connected with the other electrode. For example, the metal member 3 may lead out a positive electrode of the battery cell 5, and the case 1 may lead out a negative electrode of the battery cell 5. For example, the battery cell 5 is provided with a first tab 51 and a second tab 52, the battery cell 5 is electrically connected to the metal member 3 through the first tab, and the battery cell 5 is electrically connected to the casing 1 through the second tab 52.

The cover plate 2 is connected to the housing 1, and the cover plate 2 and the housing 1 can form the same electrode. The insulating sealing element 4 between the cover plate 2 and the metal piece 3 has an insulating effect, so that the metal piece 3 is prevented from being conducted with the cover plate 2, and the effect of preventing short circuit is achieved.

And an insulating member 6, wherein the insulating member 6 is arranged at the outermost layer of the end part, so that the insulating member 6 is positioned on the surface of the electric connection end. And the insulating part 6 is provided with a third through hole, and the metal part 3 is exposed in the third through hole, so that the metal part 3 can be led out of the electrode structure to the outside of the button cell package through the third through hole.

A first lead-out member 7, wherein the first lead-out member 7 has a first end electrically connected to the metal member 3 and a second end located on a side of the insulating member 6 away from the cover plate 2. The first lead-out member 7 is electrically connected to the metal member 3 to lead out the electrode electrically connected to the battery cell 5 from the metal member 3, and to lead out the first lead-out member 7 to the outer surface of the insulating member 6. The outer surface of the insulating member 6 is a side surface of the insulating member 6 remote from the cap plate 2. The insulating member 6 has an insulating function, and can prevent the first lead-out member 7 from being in contact with and conducted with the cover plate 2.

A second lead-out 8, the second lead-out 8 having a third end electrically connected to the housing 1 and a fourth end located on a side of the insulating member 6 remote from the cover plate 2. The second leading-out piece 8 leads out the electrode electrically connected with the shell 1 and the battery core 5 to the outer surface of the insulating piece 6, so that the second leading-out piece 8 and the first leading-out piece 7 are positioned on the same side of button battery packaging, and are easier to be connected with an external circuit.

In this embodiment, by providing the insulating member 6, the insulating member 6 is insulated between the first lead-out member 7 and the second lead-out member 8 led out to the electrical connection end and the cover plate 2, and the first lead-out member 7 and the second lead-out member 8 can be prevented from contacting the cover plate 2, thereby effectively avoiding the problem of short circuit.

In one embodiment, as shown in fig. 1 to fig. 3, the metal member 3 includes a bottom plate 30 and a boss 31 disposed on the bottom plate 30, the bottom plate 30 is located on the inner side of the cover plate 2, the boss 31 is exposed out of the third through hole, the first end is electrically connected to the boss 31, and the battery cell 5 is electrically connected to the bottom plate 30.

In this embodiment, the boss 31 exposes the third through hole to be exposed to the outside of the insulating member 6. This enables the metal piece 3 to be exposed to the outside of the insulating member 6 through the boss 31 to make it easier to make the first lead-out member 7 electrically connected with the metal piece 3.

For example, the boss 31 extends from the base plate 30 in the order of the second through hole, the first through hole, and the third through hole. With reference to the orientation in fig. 1, the end of the boss 31 is higher than the outer side of the insulator 6, i.e. the surface located above in fig. 1.

In one embodiment, the inner wall of the third through hole abuts the boss 31.

The third through hole is constituted by the insulator 6, and the gap between the insulator 6 and the boss 31 can be eliminated by abutting the inner wall of the third through hole against the boss 31. In the structure that first extraction 7 is connected with boss 31 and is drawn to the insulating part 6 outside, can effectively avoid first extraction 7's structure to contact with apron 2 through the clearance between insulating part 6 and the boss 31, improved insulating 6's insulating effect.

In one embodiment, the insulator 6 has a ring-shaped portion disposed around the third through-hole, the ring-shaped portion extending between the inner wall of the first through-hole and the boss 31.

In this embodiment, the annular portion extends along the insulator 6 into the first through hole and between the inner wall of the first through hole and the boss 31. The annular portion has an insulating effect similar to the insulating member 6, and the annular portion provides insulation between the inner wall of the first through hole and the boss 31, thereby further improving the insulating effect between the cover plate 2 and the boss 31.

In one embodiment, as shown in fig. 4, the metal member 3 includes a bottom plate 30 and a boss 31 disposed on the bottom plate 30, the bottom plate 30 is located on the outer side of the cover plate 2, the insulating member 6 is located on the outer side of the bottom plate 30, and the bottom plate 30 is located between the insulating member 6 and the cover plate 2. The boss 31 extends into the first through hole, the boss 31 is electrically connected to the battery cell 5, and the bottom plate 30 is electrically connected to the first end.

In this embodiment, the bottom plate 30 forms a cover on the outer side of the cover plate 2, and the boss 31 extends into the first through hole with the bottom plate 30, so that the boss 31 and the battery cell 5 can be electrically connected. The base plate 30 is exposed to the third through hole, and the first lead-out member 7 can be electrically connected to the base plate 30 through the third through hole to lead out the electrode connected to the boss 31 to the outside of the insulating member 6.

In one embodiment, as shown in fig. 1-4, the boss 31 is a trapezoidal platform having a dimension on a side thereof closer to the base plate 30 that is greater than a dimension on a side thereof farther from the base plate 30.

In this embodiment, the boss 31 is formed by extending from a side close to the base plate 30 to a side away from the base plate 30, and the boss 31 has a trapezoidal mesa structure to form the boss 31 into a structure with gradually changing dimensions. The size of the boss 31 gradually decreases from the side close to the base plate 30 to the side of the trapezoidal table far from the base plate 30. This makes it possible to easily position and assemble the boss 31, and to effectively prevent the cover plate 2 from contacting and conducting with the boss 31 in the structure in which the boss 31 penetrates the first through hole in the cover plate 2.

In one embodiment, as shown in fig. 1, 3, and 4, the second end is provided with a first extending portion 71, and the first extending portion 71 is bent toward a side of the second end away from the insulating member 6.

In this embodiment, the second end of the first extending portion 71 is bent to a side away from the insulating member 6, so that the first leading-out member 7 extends out of the structure away from the insulating member 6. This enables the first lead-out member 7 to provide a structure that is more easily connected to an external circuit.

In one embodiment, the fourth end is provided with a second extending portion 81, and the second extending portion 81 is bent toward a side of the fourth end away from the insulating member 6.

In this embodiment, the fourth end of the second extending portion 81 is bent to a side away from the insulating member 6, so that the second leading-out member 8 extends out of the structure away from the insulating member 6. This enables the second lead-out member 8 to provide a structure that is more easily connected to an external circuit.

In one embodiment, the first and second lead-

outs

7, 8 are wires or metal sheets.

In this exemplary embodiment, the first lead-out piece 7 and the second lead-out piece 8 are connection ends of the button cell package which lead out to the outside. The first and second lead-

outs

7, 8 are optionally formed by wires or metal sheets, depending on the specific construction of the button cell application.

For example, in fig. 2, the first lead-out member 7 and the second lead-out member 8 are metal sheets. The sheet metal can laminate the structure of the position more to reduce the thickness of self to overall structure increase.

The volume occupied by the lead is small, so that the button cell can adapt to a smaller use space.

In one embodiment of the disclosure, a button cell comprises a button cell package as described in any of the above embodiments.

In this embodiment, the button battery is packaged by using the button battery, which has the technical effects brought by the button battery packaging.

In one embodiment of the present disclosure, an electronic device includes a button cell as described above.

In this embodiment, the button cell used in the electronic device has better safety, and has the technical effects brought by the button cell.

In the above embodiments, the differences between the embodiments are described in emphasis, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in consideration of brevity of the text.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for the purpose of illustration and is not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. A button cell package, comprising:

a metal piece disposed on the cover plate;

the insulating sealing element is arranged between the metal piece and the cover plate, a second through hole is formed in the insulating sealing element and communicated with the first through hole, and the metal piece covers the second through hole;

2. The button cell package according to claim 1, wherein the metal member includes a bottom plate and a boss disposed on the bottom plate, the bottom plate is located inside the cover plate, the boss exposes the third through hole, the first end of the boss is electrically connected to the boss, and the battery cell is electrically connected to the bottom plate.

3. The button cell package according to claim 2, wherein the insulator has a ring portion disposed around the third through hole, the ring portion extending between the boss and an inner wall of the first through hole.

4. The button cell package according to claim 1, wherein the metal member includes a bottom plate and a boss disposed on the bottom plate, the bottom plate is located outside the cover plate, the insulator is located outside the bottom plate, the boss extends into the first through hole, the core is electrically connected to the boss, and the bottom plate is electrically connected to the first end.

5. Button cell package according to any one of claims 2 to 4, characterized in that the elevation is a trapezoidal plateau, the dimension of the side of the plateau facing towards the base being greater than the dimension of the plateau facing away from the base.

6. The button cell package according to claim 1, wherein the second end is provided with a first extension bent toward a side of the second end away from the insulator.

7. The button cell package according to claim 1, wherein the fourth end is provided with a second extension bent toward a side of the fourth end away from the insulator.

8. The button cell package according to claim 1, wherein the first and second lead-outs are wires or metal sheets.

9. Button cell, characterized in that it comprises a button cell package according to one of claims 1 to 8.

10. An electronic device, characterized in that it comprises a button cell according to claim 9.