CN211062745U - Button cell - Google Patents

Abstract

The utility model discloses a button cell, which comprises an inner shell, wherein the outer part of the inner shell is connected with an outer shell through a sealing ring, waist lines are arranged in the upper waist part and the head part of the sealing ring, the thickness of the waist line is 0.02-1mm, the width is 0.8-1.2mm, the convex position of the waist line is provided with an indentation, the inner shell, the outer shell and the sealing ring of the button cell are combined into a shell body, wherein the inner shell and the outer shell are both made of metal, the shell is a round metal shell, the three-layer structure comprises an inner shell, an outer shell and a sealing ring, wherein, the waist line which bulges outwards is designed at the upper waist part and the inside and outside of the head part in the sealing ring, the contact between the inner and outer shells and the sealing ring is more tight due to the existence of the waist line, when the sealing is carried out, rolling the convex position of the button cell casing corresponding to the waist line of the sealing ring to form two indentations by radially inward pressing, the impression has the significance of pressing the sealing ring by a certain amount to realize and reinforce the sealing performance of the battery.

Description

Button cell

Technical Field

The utility model relates to a battery, in particular to button cell belongs to the lithium cell and makes technical field.

Background

At present, when most of battery manufacturers manufacture button batteries, a shell adopts a circular metal shell, and the structure is divided into three layers: interior casing, shell body and sealing washer are sealed to adopt R angle sealing technique, and the measurement of prior art means to the R angle is not very accurate, can not seal the leakproofness to the accuse battery completely, and sealed problem can not be solved reliably to R angle sealing technique, consequently the utility model provides a button cell.

Disclosure of Invention

The utility model provides a button cell, the utility model discloses the inner shell, the shell makes up into the casing with the sealing washer, wherein the inner shell all adopts the metal to make with the shell, the casing is circular metal casing, three layer construction contains interior outer casing and sealing washer, wherein middle-upper waist of sealing washer, the inside and outside waist line that has an outside bulge of head all design, the existence of waist line makes interior outer casing more inseparabler with the sealing washer contact, when sealing, the rolling groove is carried out to the corresponding sealing washer waist line bulge position of button cell shell, radially inwards oppress into two indentation, the meaning of this indentation lies in an amount of oppression sealing washer, realize and consolidate the leakproofness of battery.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a button cell, including the inner shell, the inner shell outside is connected with the shell through the sealing washer, all be provided with the stringcourse in middle and upper waist of sealing washer, the stringcourse makes interior outer shell more inseparable with the sealing washer contact.

As an optimized technical proposal of the utility model, the thickness of the waist line is 0.02-1mm, and the width of the waist line is 0.8-1.2 mm.

As an optimal technical scheme of the utility model, stringcourse protrusion position all is provided with the indentation.

As an optimized technical scheme of the utility model, inner shell and shell adopt metal material to make.

The utility model discloses the beneficial effect who reaches is: the utility model discloses the inner shell, the shell makes up into the casing with the sealing washer, wherein the inner shell all adopts the metal to make with the shell, the casing is circular metal casing, three layer construction contains interior outer casing and sealing washer, wherein middle upper waist portion in the sealing washer, the inside and outside all design of head has a stringcourse to the drum, the existence of stringcourse makes interior outer casing inseparabler with the sealing washer contact, when sealing, the rolling groove is carried out to the corresponding sealing washer stringcourse bulge position of button cell shell, radially inwards oppress into two indentation, the meaning of this indentation lies in an amount of oppression sealing washer, realize and consolidate the leakproofness of battery.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. an inner shell; 2. a waist line; 3. indentation; 4. a housing; 5. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): as shown in fig. 1, the utility model relates to a button cell, including inner shell 1, inner shell 1 is outside to be connected with shell 4 through sealing washer 5, all be provided with stringcourse 2 in the sealing washer 5 middle and upper waist portion, the head, the existence of stringcourse 2 makes the inside and outside casing inseparabler with the 5 contacts of sealing washer, when sealing, the rolling slot is carried out to the 2 convex positions of the corresponding sealing washer 5 stringcourse of button cell shell 4, radial inside oppression becomes two indentation 3, this indentation 3's meaning lies in a quantitative oppression sealing washer 5, realize and consolidate the leakproofness of battery.

The thickness of the waist line 2 is 0.02-1mm, the width of the waist line 2 is 0.8-1.2mm, the protruding positions of the waist line 2 are provided with indentations 3, and the inner shell 1 and the outer shell 4 are made of metal materials.

Specifically, the utility model discloses during the use, inner shell 1, shell 4 makes up into the casing with sealing washer 5, wherein inner shell 1 all adopts the metal to make with shell 4, the casing is circular metal casing, three layer construction contains interior shell and sealing washer 5, wherein middle and upper waist portion in the sealing washer 5, all design has a stringcourse 2 to the evagination inside and outside the head, the existence of stringcourse 2 makes interior shell and sealing washer 5 contact inseparabler, when sealing, the rolling groove is carried out to the corresponding 5 stringcourse 2 bulge positions of sealing washer of button cell shell 4, radially inwards oppress into two indentation 3, this indentation 3's meaning lies in an amount of oppression sealing washer 5, realize and consolidate the leakproofness of battery.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The button cell is characterized by comprising an inner shell (1), wherein the outer part of the inner shell (1) is connected with an outer shell (4) through a sealing ring (5), waist lines (2) are arranged in the middle and upper waist part and the head part of the sealing ring (5), and the inner shell and the outer shell are contacted with the sealing ring (5) more tightly through the waist lines (2).

2. A button cell according to claim 1, characterized in that the thickness of the waist line (2) is 0.02-1mm and the width of the waist line (2) is 0.8-1.2 mm.

3. Button cell battery according to claim 1, characterized in that the protruding positions of the waist line (2) are provided with indentations (3).

4. Button cell battery according to claim 1, characterized in that the inner casing (1) and the outer casing (4) are made of metal material.

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