CN212257478U

CN212257478U - Button cell

Info

Publication number: CN212257478U
Application number: CN202020719068.6U
Authority: CN
Inventors: 刘志伟; 沈立强; 覃昌松; 戴建勇; 曾贤华
Original assignee: Huizhou Everpower Technology Co ltd
Current assignee: Huizhou Everpower Technology Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-29
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a button cell, which comprises a steel shell, a cell component and a steel sheet component, wherein the steel shell is provided with an insulation avoiding gap; the electric core assembly comprises a soft-package electric core, a first tab and a second tab, the first tab and the second tab are respectively arranged on the soft-package electric core, and the first tab is welded on the steel shell; the steel sheet subassembly includes first steel sheet and second steel sheet, first steel sheet weld in on the steel casing, the second utmost point ear weld in on the second steel sheet, the second steel sheet with the setting of keeping away a breach alignment in the insulation, and first steel sheet with the one end of second steel sheet is used for pegging graft jointly on the electron device of outside. The utility model relates to a button battery, through setting up the soft package electricity core, compare with the lamination battery, the process is simpler, process and assemble more conveniently; through set up the insulating position breach of keeping away on the box hat, can avoid utmost point ear or steel sheet contact box hat at the in-process of assembly to can avoid appearing the problem of short circuit.

Description

Button cell

Technical Field

The utility model relates to a small-size battery field especially relates to a button cell.

Background

Button cells are common cells, and are small in size and multiple in type. The battery is also called a button battery because the external dimension of the battery is like a battery with a small button. Most button type batteries are primary batteries (non-rechargeable batteries, also called primary batteries) which are dry batteries, but have obvious difference in appearance from common dry batteries with large and long cylindrical structures, such as the I, the II, the III, the IV and the like. Of course, button cells are generally common, both charged and uncharged, charged including 3.6V rechargeable lithium ion button cells (LIR series), 3V rechargeable lithium ion button cells (ML or VL series); uncharged included are 3V lithium manganese button cells (CR series) and 1.5V alkaline zinc manganese button cells (LR and SR series).

However, the existing button battery generally has a battery cell with a laminated structure, so that the manufacturing process is complex, and the production efficiency of the button battery is reduced; moreover, the steel shell of the existing battery is easy to touch the steel sheet, so that the problem of short circuit is easy to occur; in addition, the lug of the conventional button battery is a pure nickel-nickel sheet, is soft in material, is not suitable for mechanical operation, is inconvenient to assemble, and cannot be assembled at any angle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, provide an easy processing, convenient assembly and avoid appearing the button cell of short circuit problem.

The purpose of the utility model is realized through the following technical scheme:

a button cell, comprising:

the steel shell is provided with an insulation avoiding gap;

the battery core assembly comprises a soft-package battery cell, a first tab and a second tab, the first tab and the second tab are respectively arranged on the soft-package battery cell, and the first tab is welded on the steel shell; and

the steel sheet subassembly, the steel sheet subassembly includes first steel sheet and second steel sheet, first steel sheet weld in on the steel casing, the second pole ear weld in on the second steel sheet, the second steel sheet with the setting of keeping away a breach alignment in insulation, and first steel sheet with the one end of second steel sheet is used for pegging graft on the electron device of outside jointly.

In one embodiment, the first steel sheet comprises a welding sheet body and a first plug part, the welding sheet body is welded on the steel shell, and the welding sheet body is connected with the first plug part.

In one embodiment, the second steel sheet includes a circular welding portion, an extending portion, and a second inserting portion, the circular welding portion is welded to the second tab, two ends of the extending portion are respectively connected to the circular welding portion and the second inserting portion, the second inserting portion is used for being inserted into an electronic device, and the second inserting portion is located above the insulation avoiding gap.

In one embodiment, the button cell further comprises a double-sided adhesive layer, and the double-sided adhesive layer is arranged between the circular welding portion and the soft package battery core.

In one embodiment, the button cell further comprises an adhesive layer, one side of the adhesive layer is attached to the bottom of the steel shell, and the side of the adhesive layer away from the steel shell is attached to the soft-package battery core.

In one embodiment, the button cell further comprises an insulating label patch, and the insulating label patch is attached to the second steel sheet.

In one embodiment, the insulating label patch is a two-dimensional code label patch.

In one embodiment, the thickness of the soft package cell is larger than that of the steel shell.

In one embodiment, one end of the first tab is connected with the soft package battery cell, the other end of the first tab extends to the top of the steel shell, and the other end of the first tab is welded on the steel shell.

In one embodiment, the steel shell is provided with a plurality of insulation avoiding gaps.

The utility model discloses compare in prior art's advantage and beneficial effect as follows:

the utility model relates to a button battery, through setting up the soft package electricity core, compare with the lamination battery, the process is simpler, process and assemble more conveniently; the insulation avoiding gap is arranged on the steel shell, so that a lug or a steel sheet can be prevented from contacting the steel shell in the assembling process, and the problem of short circuit can be avoided; in addition, the button cell can be conveniently assembled on an external electronic device through the steel sheet, the hardness of the steel sheet is harder compared with that of the lug, the assembling efficiency is higher, the angle of the steel sheet can be adjusted according to actual needs, and the assembling convenience is further realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a button cell according to an embodiment of the present invention;

FIG. 2 is a schematic view of another angle button cell shown in FIG. 1;

FIG. 3 is a schematic structural view of another embodiment of the button cell shown in FIG. 1;

FIG. 4 is a schematic structural diagram of a steel shell of the button cell shown in FIG. 1;

fig. 5 is a schematic structural view of a button cell according to another embodiment of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. 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. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a button cell includes: the tab connecting structure comprises a steel shell 100, an electric core assembly 200 and a steel sheet assembly 300, wherein the steel shell 100 is used for wrapping an electric core to play a role in protection, and can also realize steel sheet welding, so that the connection range or connection angle of a tab can be extended; the battery core assembly 200 is of a soft-package-coated battery core structure, so that the assembly can be conveniently carried out, and the processing efficiency is improved; the steel sheet assembly 300 is used for conveniently plugging an external electronic device. Therefore, compared with a laminated battery, the laminated battery is simpler in process and more convenient to process and assemble by arranging the soft package battery core; the insulation avoiding gap is arranged on the steel shell, so that a lug or a steel sheet can be prevented from contacting the steel shell in the assembling process, and the problem of short circuit can be avoided; in addition, the button cell can be conveniently assembled on an external electronic device through the steel sheet, the hardness of the steel sheet is harder compared with that of the lug, the assembling efficiency is higher, the angle of the steel sheet can be adjusted according to actual needs, and the assembling convenience is further realized.

Please refer to fig. 1, an insulation gap 110 is formed on the steel shell 100. It should be noted that, the insulating position-avoiding notch 110 is used for avoiding the position of the steel sheet, that is, in the process of assembling the battery, the steel sheet connected with the tab may contact the steel shell, so that the short circuit occurs, and the insulating position-avoiding notch 110 is formed in the steel shell, so that the problem that the steel sheet is in the assembling process, even if the steel sheet is pressed down, the steel shell is not in contact with the steel sheet, so that the short circuit can be effectively avoided.

Referring to fig. 2, the battery assembly 200 includes a soft-package battery cell 210, a first tab 220 and a second tab 230, where the first tab and the second tab are respectively disposed on the soft-package battery cell, and the first tab is welded on the steel shell. It should be noted that the soft-package battery cell 210 is used for outputting a power supply, and the processing procedure of the soft-package battery cell can be simplified; the first tab 220 and the second tab 230 are respectively a positive tab or a negative tab, and the actual tab of which one of the two tabs is can be adjusted according to the needs of a customer.

Referring to fig. 1 and 3, the steel sheet assembly 300 includes a first steel sheet 310 welded to the steel shell, and a second steel sheet 320, the second tab is welded to the second steel sheet, the second steel sheet is aligned with the insulation clearance gap, and one end of the first steel sheet and one end of the second steel sheet are used for being jointly plugged into an external electronic device. The first steel sheet 310 is used for being connected with a first tab, so as to extend the first tab; the second steel sheet 320 is used for connecting with the second pole ear, and extends the second pole ear, so that the second steel sheet can be inserted into an external electronic device, and the assembly is convenient.

Referring to fig. 3, the first steel plate 310 includes a welding plate 311 welded to the steel shell and a first inserting portion 312 connected to the welding plate. It should be noted that the welding sheet 311 is used for welding on the steel shell so as to electrically connect the steel shell and the welding sheet, and since the first tab is welded on the steel shell and the welding sheet is also welded on the steel shell, the first steel sheet and the first tab can be conducted, that is, the first steel sheet can be used as an electrode to supply power to the outside. First grafting portion 312 sets up with welding lamellar body integrated into one piece, and first grafting portion with the welding lamellar body sets up perpendicularly to can make the welding lamellar body of welding at the box hat upper surface through buckling the back, can realize 90 grafting downwards, and realize grafting on the electron device of outside jointly with the second steel sheet, thereby conveniently assemble, improve the efficiency of assembly.

Referring to fig. 2, the second steel sheet 320 includes a circular welding portion 321, an extending portion 322, and a second inserting portion 323, the circular welding portion is welded to the second tab, two ends of the extending portion are respectively connected to the circular welding portion and the second inserting portion, the second inserting portion is used for being inserted into the electronic device, and the second inserting portion is located above the insulation avoiding gap. It should be noted that the circular welding portion 321 is used for being attached to a soft-package battery cell, and by arranging the circular structure, the welding portion does not have a corner, and does not stab or scratch the soft-package battery cell, so as to protect the battery cell; the extension part 322 is used for connecting the circular welding part and the second plug part; the second insertion part 323 is used for being inserted into an external electronic device, and specifically, the second insertion part and the extension part are perpendicular to each other, so that the second insertion part and the extension part can be conveniently inserted.

Referring to fig. 4, the button cell further includes a double-sided adhesive layer 400, and the double-sided adhesive layer 400 is disposed between the circular welding portion and the soft package battery core. It should be noted that the double-sided adhesive layer 400 is used for attaching the second steel sheet to the soft package battery core, and meanwhile, when the second tab is welded to the second steel sheet, the position of the second tab can be fixed, so that the second tab can be welded to the second steel sheet, and the structure of the tab can be more stable and firmer. Moreover, adopt the attached of two-sided adhesive layer, can fix the angle of steel sheet, guarantee attached more level and smooth, bellied structure can not appear, and the two-sided adhesive is pasted the back, carries out some glue processing at the second steel sheet periphery once more to can prevent that the steel sheet from breaking away from electric core and perk, influence the assembly.

Referring to fig. 2, the button cell further includes an adhesive layer 500, one side of the adhesive layer 500 is attached to the bottom of the steel case, and one side of the adhesive layer 500 away from the steel case is attached to the soft package battery core. It should be noted that, the bonding glue film 500 is used for coating in the inboard bottom of box hat, when the attached placing in the box hat of soft-packaged electrical core, then can avoid electric core to appear controlling the condition of rocking in the box hat, moreover, through setting up soft-packaged electrical core, also can make more convenient in the assembly, efficiency is faster. So, can prevent the condition of short circuit from appearing in electric core and box hat through setting up bonding glue film 500.

Please refer to fig. 5, the button cell further includes an insulating tag patch 600 attached to the second steel sheet. Preferably, the insulating tag patch is a two-dimensional code tag patch. So, through setting up the insulating label paster, can be so that second utmost point ear and second steel sheet are covered by insulating label for after the battery assembly, can not make the condition that the short circuit appears in second utmost point ear and second steel sheet and outside electron device, when conveniently assembling, can prevent the condition of short circuit, realized the condition of bilayer preventing the short circuit.

It should be noted that the thickness of the soft package battery cell is greater than the thickness of the steel shell. In the processing process, the height of the soft-package battery cell is higher than that of the side wall of the steel shell, so that the second steel sheet on the soft-package battery cell cannot be electrically connected with the steel shell, and the short circuit condition cannot occur; and through being higher than the steel casing with the laminate polymer core, can be so that when assembling, more conveniently peg graft, the short circuit can not appear yet, has improved the security of battery assembly. In particular, the thickness of the steel shell is the thickness of the steel shell, or can be understood as the thickness of the shell of the steel shell.

It should be noted that one end of the first tab is connected to the soft-package battery cell, the other end of the first tab extends to the top of the steel shell, and the other end of the first tab is welded to the steel shell. So, through setting up first utmost point ear and extending the back along the lateral wall of box hat for first utmost point ear welding is on the upper surface of box hat, thereby can realize the electricity of first utmost point ear and box hat and connect, and the back is welded on the box hat at first steel sheet simultaneously for first utmost point ear and first steel sheet carry out the electricity and connect, have realized external output power supply function.

In this embodiment, a plurality of insulation avoiding notches are formed in the steel shell. So, keep away a breach through setting up a plurality of insulations, can avoid the problem of short circuit effectively appearing, improve the security of battery.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A button cell, comprising:

the steel shell is provided with an insulation avoiding gap;

2. The button cell according to claim 1, wherein the first steel sheet includes a welding sheet and a first plug portion, the welding sheet is welded to the steel case, and the welding sheet is connected to the first plug portion.

3. The button cell according to claim 1, wherein the second steel sheet includes a circular welding portion, an extending portion, and a second insertion portion, the circular welding portion is welded to the second tab, two ends of the extending portion are respectively connected to the circular welding portion and the second insertion portion, the second insertion portion is used for being inserted into an electronic device, and the second insertion portion is located above the insulation avoiding gap.

4. The button cell of claim 3, further comprising a double-sided adhesive layer disposed between the circular weld and the pouch core.

5. The button battery according to claim 1, further comprising an adhesive layer, wherein one side of the adhesive layer is attached to the bottom of the steel shell, and the other side of the adhesive layer away from the steel shell is attached to the soft-packaged electric core.

6. The button cell of claim 1, further comprising an insulating label patch that is affixed to the second steel sheet.

7. The button cell of claim 6, wherein the insulating label patch is a two-dimensional code label patch.

8. The button cell of claim 1, wherein the thickness of the flexible package cell is greater than the thickness of the steel can.

9. The button battery as claimed in claim 1, wherein one end of the first tab is connected with the soft package core, the other end of the first tab extends to the top of the steel shell, and the other end of the first tab is welded on the steel shell.

10. The button cell according to claim 1, wherein the steel case has a plurality of insulation clearance gaps.