CN219959347U - Button cell and electronic equipment - Google Patents

Abstract

The embodiment of the utility model discloses a button cell and electronic equipment, the button cell comprises: a housing; the pole core is arranged in the shell, and two pole lugs are arranged on the pole core; and at least one connecting piece, wherein the connecting piece is arranged between the lug and the shell, and the lug and the shell are connected through the connecting piece. According to the embodiment of the utility model, the connecting piece is arranged between the shell and the lug, the connecting piece is welded and fixed with the lug in advance, and then the connecting piece is welded and fixed with the shell, so that the welding and fixing between the pole core and the shell are easier to realize compared with the connecting piece, the occurrence of the phenomena of cold joint and the like is reduced, and the welding effect is improved.

Description

Button cell and electronic equipment

Technical Field

The utility model belongs to the technical field of batteries, and particularly relates to a button battery and electronic equipment.

Background

Button cells are widely used because of their small size, large capacity and good consistency. In the process of assembling the button cell, the shell and the electrode lugs are required to be welded so as to meet the purpose that the shell and the electrode core are electrically connected to form an electrode.

In the related art, in the welding process of the tab and the shell, the tab is difficult to position, the welding state inside the shell cannot be observed, and the situation that the shell and the tab are not welded or are not firmly welded is easily caused.

Disclosure of Invention

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

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

a housing;

the pole core is arranged in the shell, and two pole lugs are arranged on the pole core;

and at least one connecting piece, wherein the connecting piece is arranged between the lug and the shell, and the lug and the shell are connected through the connecting piece.

Optionally, the pole core is a winding structure, the pole core comprises two end faces which are oppositely arranged, and the pole lugs are respectively arranged on the two end faces of the pole core.

Optionally, one end of the tab is connected to the central position of the pole core, and the other end of the tab is connected to the connecting piece.

Optionally, a through hole is formed in the middle of the pole core, and the connecting piece covers the through hole.

Optionally, the material of the connecting piece is a metal material.

Optionally, the connecting piece and the tab are welded and fixed through a double-needle welding head; or alternatively, the process may be performed,

the connecting piece and the shell are welded and fixed through a double-needle welding head.

Optionally, the housing includes a first end face and a second end face which are oppositely arranged, and two end faces of the pole core are respectively opposite to the first end face and the second end face; wherein, the liquid crystal display device comprises a liquid crystal display device,

the two connecting pieces are respectively arranged between the end face and the first end face and between the end face and the second end face.

Optionally, the housing further comprises:

a first sidewall disposed about the first end face;

and a second sidewall disposed around the second end face; wherein, the liquid crystal display device comprises a liquid crystal display device,

the second side wall is sleeved on the outer side of the first side wall, and an insulating sealing ring is arranged between the first side wall and the second side wall.

Optionally, at least one of the first end face and the second end face is provided with a protruding structure and is connected with the corresponding connecting piece through the protruding structure; wherein, the liquid crystal display device comprises a liquid crystal display device,

the projection structure projects toward the inside of the housing.

According to a second aspect of the present utility model, there is also provided an electronic device comprising the button cell of the first aspect.

The utility model has the technical effects that:

according to the utility model, the connecting piece is arranged between the shell and the lug, the connecting piece is welded and fixed with the lug in advance, and then the connecting piece is welded and fixed with the shell, so that the welding and fixing between the connecting piece and the shell are easier to realize, the occurrence of the phenomena of cold joint and the like is reduced, and the welding effect is improved. In addition, the connecting piece sets up between casing and the utmost point core, and the connecting piece has good holding power, has realized its protection to the utmost point core, has further improved the welding effect.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, 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 a schematic diagram of the overall structure of a button cell according to an embodiment of the present utility model;

FIG. 2 is a second schematic diagram of the overall structure of a button cell according to an embodiment of the present utility model;

FIG. 3 is a third schematic diagram of the overall structure of a button cell according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of the overall structure of a button cell according to an embodiment of the present utility model;

fig. 5 is a schematic diagram of the overall structure of a button cell according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a housing; 11. a first end face; 12. a second end face; 13. a first sidewall; 14. a second sidewall; 15. an insulating seal ring; 2. a pole core; 3. a tab; 4. and a connecting piece.

Detailed Description

Various exemplary embodiments of the present utility model 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, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

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

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

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

The utility model discloses a button cell. Referring to fig. 1 to 5, the button cell comprises a housing 1, a pole piece 2 and at least one connecting piece 4;

the pole core 2 is arranged in the shell 1, and two pole lugs 3 are arranged on the pole core 2;

the connecting piece 4 is arranged between the tab 3 and the housing 1, and the tab 3 and the housing 1 are connected through the connecting piece 4.

Referring to fig. 1, the button cell includes a case 1, a pole core 2, and at least one connection member 4. The housing 1 has an accommodation space formed therein, and the pole piece 2 and the connection member 4 are disposed in the accommodation space in the housing 1.

As shown in fig. 1, two tabs 3 are provided on the pole core 2, and the two tabs 3 are fixed to the pole core 2 by, for example, welding. The pole core 2 includes a pole piece, and the pole core 2 is provided in a winding structure formed by winding the pole piece, or the pole core 2 is provided in a stacked structure formed by stacking a plurality of pole pieces.

The two tabs 3 may be disposed on the same side of the pole core 2, and the two tabs 3 may also be disposed on different sides of the pole core 2. The specific position of the tab 3 with respect to the pole core 2 is not limited in the present utility model.

Referring to fig. 1 and 2, two connecting pieces 4 are provided, and the two connecting pieces 4 are provided in one-to-one correspondence with the two tabs 3. Of course, the connection member 4 may be provided in plural, and the present utility model is not limited to the specific number of connection members 4.

The connecting piece 4 is arranged between the tab 3 and the shell 1, and the tab 3 and the shell 1 are mechanically and electrically connected through the connecting piece 4. Specifically, the connecting member 4 includes a first surface and a second surface that are disposed opposite to each other, the first surface of the connecting member 4 is fixedly connected to the tab 3 by, for example, welding, and the second surface of the connecting member 4 is fixedly connected to the housing 1 by, for example, welding.

In the utility model, when the button battery is assembled, the connecting piece 4 and the lug 3 are welded and fixed in advance, then the assembled pole core 2 and the connecting piece 4 are simultaneously arranged in the shell 1, and finally the shell 1 and the connecting piece 4 are welded and fixed, so that the electric connection and the mechanical connection between the pole core 2 and the shell 1 are realized.

In the prior art, the area of the tab 3 is usually smaller, and after the tab 2 and the tab 3 are placed in the housing 1, the housing 1 and the tab 3 are welded, so that the position of the tab 3 is difficult to observe and determine in the welding process, and therefore, the problems of cold welding and the like easily occur in the welding process, resulting in poor welding effect. In addition, during the welding process of the housing 1 and the tab 3, an external force is usually applied to press the housing 1 to make the housing 1 contact with the tab 3, so as to improve the welding effect. However, in the welding process, the external force applied simultaneously can squeeze the pole core 2, so that the pole core 2 is easily deformed under the stress, and the overall appearance of the button cell is affected.

According to the utility model, the connecting piece 4 is arranged between the shell 1 and the tab 3, the connecting piece 4 is welded and fixed with the tab 3 in advance, and then the connecting piece 4 is welded and fixed with the shell 1, so that compared with the connecting piece 4, the welding and fixing between the pole core 2 and the shell 1 are easier, the occurrence of the phenomena of cold joint and the like is reduced, and the welding effect is improved. In addition, the connecting piece 4 is arranged between the shell 1 and the pole core 2, and the connecting piece 4 has good supporting force, so that the protection of the connecting piece on the pole core 2 is realized, and the welding effect is further improved.

In the embodiment of the utility model, the pole core 2 is a winding structure, the pole core 2 comprises two opposite end surfaces, and the pole lugs 3 are respectively arranged on the two end surfaces of the pole core 2.

Referring to fig. 3 to 5, the pole core 2 is configured as a structure formed by winding pole pieces, and the pole core 2 includes two end surfaces that are disposed opposite to each other, wherein, as shown in fig. 3, one tab 3 is disposed on the end surface of the pole core 2 that is located above, and the other tab 3 is disposed on the end surface of the pole core 2 that is located below.

With continued reference to fig. 3, two connecting pieces 4 are disposed between the tab 3 and the housing 1, so that the two connecting pieces 4 are disposed on two end surfaces of the pole core 2. Specifically, one connecting piece 4 is provided on the upper end face of the pole piece 2, and the other connecting piece 4 is provided on the lower end face of the pole piece 2.

In the present utility model, the tab 3 and the connecting member 4 are provided on both end surfaces of the pole core 2, and preferably, the two end surfaces are provided opposite to each other. Therefore, when welding is performed by equipment or manual work, the positions of the two connecting pieces 4 are conveniently positioned, and welding between the shell 1 and the connecting pieces 4 is facilitated.

In the embodiment of the utility model, one end of the tab 3 is connected with the central position of the pole core 2, and the other end of the tab 3 is connected with the connecting piece 4.

Referring to fig. 3, two tabs 3 extend from the central position of the pole core 2 to the connection member 4, specifically, one end of the tab 3 is connected to the central position of the pole core 2 and the other end of the tab 3 is connected to the connection member 4. The connection between the tab 3 and the pole core 2 and the connection piece 4 is, for example, welding.

In the utility model, the pole core 2 is arranged into a winding structure, and the pole core 2 can generate a magnetic field in the using process of the button battery, and the magnetic field at the center position of the pole core 2 is smaller. Through setting up utmost point ear 3 and connecting piece 4 in the central point of utmost point core 2, be favorable to reducing the electric current noise that utmost point ear 3 and connecting piece 4 produced in button cell use, improved button cell's result of use.

In the embodiment of the present utility model, a through hole is provided in the middle of the pole core 2, and the connecting piece 4 covers the through hole.

Referring to fig. 3, a pole core 2 is wound with a pole piece, a through hole penetrating the pole core 2 is formed in the middle of the pole core 2, and a connection member 4 covers the through hole. The connection may be, for example, circular, polygonal, or irregular, and the shape of the connection member 4 is not particularly limited in the present utility model.

In the welding process of the housing 1 and the tab 3, an external force is usually applied to press the housing 1 to make the housing 1 contact with the tab 3, so as to improve the welding effect. However, during the welding process, the external force applied simultaneously presses the pole core 2. According to the utility model, the through holes of the pole core 2 are covered by the connecting piece 4, so that the supporting force of the connecting piece 4 is further improved, the protection of the connecting piece 4 on the pole core 2 is realized, the deformation of the pole core 2 in the stress process is reduced, and the welding effect is further improved.

In addition, the two-point welding mode is adopted to weld the shell 1 and the connecting piece 4, and the diameter of the connecting piece 4 is larger than the distance between the two welding points.

In the embodiment of the present utility model, the material of the connecting piece 4 is a metal material. The metal material is, for example, stainless steel, copper, iron, or the like.

Preferably, the connecting piece 4 and the shell 1 are made of the same metal material, and the connecting piece 4 and the shell 1 are made of the same material, so that the welding effect of the connecting piece 4 and the shell 1 is improved.

According to the utility model, the connecting piece 4 is made of a metal material, so that on one hand, the electric connection between the lug 3 and the shell 1 through the connecting piece 4 is facilitated, and the mechanical connection and the electric connection are easily realized in a welding mode; on the other hand, the connecting piece 4 made of the metal material has higher strength, which is beneficial to improving the protection of the connecting piece 4 to the pole core 2.

In the embodiment of the utility model, the connecting piece 4 and the tab 3 are welded and fixed through a double-needle welding head; or alternatively, the process may be performed,

the connecting piece 4 and the shell 1 are welded and fixed through a double-needle welding head.

Referring to fig. 4, the connection member 4 is fixedly connected to at least one of the tab 3 and the case 1 by welding. Preferably, the connection piece 4 and at least one of the tab 3 and the shell 1 are welded by a double-needle welding head.

For example, when welding the tab 3 to the connection member 4, the tab 3 is welded to one side surface of the connection member 4 in advance. When the lug 3 is welded fixedly with the connecting piece 4, compare lug 3 direct and casing 1 welded fixedly, the welding process between lug 3 and the connecting piece 4 is more nimble, and is convenient for observe the welding effect.

For example, when welding the connection member 4 to the case 1, the welded pole piece 2 and the connection member 4 are first placed in the case 1, and the two welding heads are abutted against the surface of the connection member 4 on the side away from the tab 3. Since the connection member 4 has a larger operation space than the tab 3, it is easier to confirm the welding position. In addition, even if the positions of the two welding heads are offset, the operation reliability of the double-needle resistance welding can be ensured, so that the welding effect is improved.

Of course, the welding method is not limited to the double-needle resistance welding, and laser welding, ultrasonic welding, or the like may be employed.

In this embodiment of the present utility model, the housing 1 includes a first end face 11 and a second end face 12 that are disposed opposite to each other, and two end faces of the pole core 2 are respectively opposite to the first end face 11 and the second end face 12; wherein, the liquid crystal display device comprises a liquid crystal display device,

the two connectors 4 are respectively arranged between the end face and the first end face 11, and between the end face and the second end face 12.

Referring to fig. 1-2, the housing 1 includes a first end face 11 and a second end face 12 that are disposed opposite to each other, wherein the first end face 11 is disposed at the top of the housing 1 in fig. 2, and the first end face 11 is opposite to the end face of the pole core 2 at the top. The second end face 12 is disposed at the bottom of the housing 1 in fig. 2, and the second end face 12 is opposite to the end face of the pole core 2 at the bottom.

The shape of the case 1 may be a rectangular parallelepiped, a cylindrical body, or the like. For example, one of the two end faces of the case 1 serves as a battery positive electrode, and the other serves as a battery negative electrode.

Referring to fig. 2, one connection member 4 protrudes from the first end face 11 from the central position of the pole core 2 and is connected with the connection member 4, that is, one connection member 4 is disposed between the first end face 11 and the housing 1. The other connecting piece 4 protrudes from the central position of the pole core 2 beyond the second end face 12 and is connected with the connecting piece 4, i.e. one connecting piece 4 is arranged between the second end face 12 and the housing 1.

In an embodiment of the present utility model, the housing 1 further includes:

a first side wall 13, the first side wall 13 being disposed around the first end face 11;

and a second side wall 14, the second side wall 14 being disposed around the second end face 12; wherein, the liquid crystal display device comprises a liquid crystal display device,

the second side wall 14 is sleeved outside the first side wall 13, and an insulating sealing ring 15 is arranged between the first side wall 13 and the second side wall 14.

Referring to fig. 1 and 2, in a specific embodiment of the present utility model, the housing 1 further includes a first sidewall 13 and a second sidewall 14. Wherein a first side wall 13 is arranged around said first end face 11. A second side wall 14 is disposed around the second end face 12. The first side wall 13, the first end face 11, the second side wall 14, and the second end face 12 enclose an accommodating space for accommodating the pole core 2.

Referring to fig. 2, the second side wall 14 is sleeved outside the first side wall 13, and an insulating sealing ring 15 is disposed between the first side wall 13 and the second side wall 14. Of course, the structure of the housing 1 is not limited to the above-described embodiment, and a person skilled in the art may set it according to actual needs.

Two lugs 3 are arranged on the pole core 2. Wherein, for example, as shown in fig. 2, one tab 3 is connected with the first end face 11, and the other tab 3 is connected with the second end face 12; one tab 3 may be connected to the first end surface 11 or the second end surface 12, and the other tab 3 may be connected to the first side wall 13 or the second side wall 14.

In the utility model, the shell 1 is provided with the structure formed by enclosing the first side wall 13, the first end face 11, the second side wall 14, the second end face 12 and the insulating sealing ring 15, and the second side wall 14 is sleeved outside the first side wall 13, so that the overlapping range of the first side wall 13 and the second side wall 14 is enlarged, the tightness between the first side wall 13 and the second side wall 14 is improved, and the sealing performance of the whole button cell is further improved.

In the embodiment of the present utility model, at least one of the first end surface 11 and the second end surface 12 is provided with a protruding structure and is connected with the corresponding connecting piece 4 through the protruding structure; wherein, the liquid crystal display device comprises a liquid crystal display device,

the protruding structure protrudes toward the inside of the housing 1.

Referring to fig. 1-2, the first end face 11 and the second end face 12 are each provided with a protrusion structure protruding toward the inside of the housing 1 so that the outside of the housing 1 is recessed, and are connected with the corresponding connection member 4 by the protrusion structures. After the shell 1 contacts with the connecting piece 4, the connecting piece 4 deforms under the extrusion of the protrusions, and the concave positions formed on the outer side of the shell 1 are welded, so that the shell 1 and the connecting piece 4 are welded and fixed at the protruding structure.

In the present utility model, the connector 4 is connected to the housing 1 by providing a protruding structure protruding toward the inside of the housing 1. The protruding structure protruding towards the inside of the shell 1 can be in close contact with the tab 3, so that the tab 3 and the shell 1 are easier to contact and position, and the shell 1 and the tab 3 can be effectively connected by welding.

In addition, the connecting piece 4 is connected with the shell 1 through a protruding structure, so that the tab 3 and the pole core 2 are communicated with the shell 1 through the protruding structure. Under the state that button cell works, the electric current between connecting piece 4 and the casing 1 is transmitted through protruding structure, has avoided the contact of the region outside protruding structure on tab 3 and the casing 1 to switch on, avoids the reposition of redundant personnel.

The utility model also provides electronic equipment comprising the button cell.

The electronic equipment has the technical effect brought by the button cell.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are 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 (9)

1. A button cell, comprising:

a housing (1);

the pole core (2), the pole core (2) is arranged in the shell (1), and two pole lugs (3) are arranged on the pole core (2);

the connecting piece (4) is arranged between the lug (3) and the shell (1), and the lug (3) and the shell (1) are connected through the connecting piece (4);

the pole core (2) is of a winding structure, one end of the pole lug (3) is connected with the center position of the pole core (2), and the other end of the pole lug (3) is connected with the connecting piece (4).

2. Button cell according to claim 1, characterized in that the pole core (2) comprises two end faces arranged opposite to each other, and the tab (3) is arranged separately on the two end faces of the pole core (2).

3. Button cell according to claim 1, characterized in that the middle part of the pole core (2) is provided with a through hole, the connecting piece (4) covering the through hole.

4. Button cell according to claim 1, characterized in that the material of the connecting piece (4) is a metallic material.

5. Button cell according to claim 1, characterized in that the connection piece (4) and the tab (3) are welded by means of a double-needle welding head; or alternatively, the process may be performed,

the connecting piece (4) and the shell (1) are welded and fixed through a double-needle welding head.

6. Button cell according to claim 1, characterized in that the housing (1) comprises a first end face (11) and a second end face (12) arranged opposite each other, the two end faces of the pole piece (2) being opposite the first end face (11) and the second end face (12), respectively; wherein, the liquid crystal display device comprises a liquid crystal display device,

the two connecting pieces (4) are respectively arranged between the end face and the first end face (11) and between the end face and the second end face (12).

7. Button cell according to claim 6, characterized in that the housing (1) further comprises:

-a first side wall (13), said first side wall (13) being arranged around said first end face (11);

and a second side wall (14), the second side wall (14) being disposed around the second end face (12); wherein, the liquid crystal display device comprises a liquid crystal display device,

the second side wall (14) is sleeved on the outer side of the first side wall (13), and an insulating sealing ring (15) is arranged between the first side wall (13) and the second side wall (14).

8. Button cell according to claim 6, characterized in that at least one of the first end face (11) and the second end face (12) is provided with a protruding structure and is connected with the corresponding connecting piece (4) by means of the protruding structure; wherein, the liquid crystal display device comprises a liquid crystal display device,

the protruding structure protrudes towards the inside of the housing (1).

9. An electronic device comprising the button cell of any one of claims 1-8.