CN217086722U - Button cell and electronic equipment - Google Patents
Button cell and electronic equipment Download PDFInfo
- Publication number
- CN217086722U CN217086722U CN202220387520.2U CN202220387520U CN217086722U CN 217086722 U CN217086722 U CN 217086722U CN 202220387520 U CN202220387520 U CN 202220387520U CN 217086722 U CN217086722 U CN 217086722U
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- gasket
- connecting portion
- protrusion
- button cell
- cell
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Abstract
The utility model relates to a button cell and electronic equipment, button cell includes: a housing having a first protrusion protruding inward; the battery cell is arranged inside the shell and provided with a first end face; the first gasket is arranged on the first end surface; the first lug is connected with the battery cell and provided with a first connecting portion, the first gasket is located between the first end face and the first connecting portion, the first protrusion is located on one side, away from the first gasket, of the first connecting portion, and the first protrusion abuts against the first connecting portion. The utility model discloses a technological effect lies in, through to the inside convex first arch of casing and first connecting portion butt, makes casing and first utmost point ear form to be connected, and first gasket forms the support to first connecting portion on first terminal surface, makes the effective butt of first arch and first connecting portion, has avoided the safety problem that welding utmost point ear and casing caused.
Description
Technical Field
The utility model relates to a button cell technical field, more specifically, the utility model relates to a button cell and electronic equipment.
Background
In the related art, the tab of the button cell generally needs to be welded with the shell. The mode of welding utmost point ear has the defect, with the mode of production of utmost point ear welding on the casing, needs the very high equipment of operating accuracy, causes the great problem of the degree of difficulty of welding utmost point ear to can increase manufacturing cost. When the internal pressure of the battery inner cavity is too large, the welded tab cannot be separated from the shell, and the battery structure is still externally used for conveying voltage when the internal pressure is too large, so that the explosion of the battery structure or the eruption of the battery electrolyte are easily caused, and the serious battery safety problem exists.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a button cell and electronic equipment's new technical scheme.
According to the utility model discloses a first aspect provides a button cell, button cell includes:
a housing having a first protrusion protruding inward;
the battery cell is arranged inside the shell and provided with a first end face;
the first gasket is arranged on the first end face;
the battery cell comprises a first tab, the first tab is connected with the battery cell and provided with a first connecting portion, a first gasket is located between a first end face and the first connecting portion, a first protrusion is located on one side, away from the first gasket, of the first connecting portion, and the first protrusion is abutted to the first connecting portion.
Optionally, the first gasket has a support portion protruding toward the first connection portion, and the first connection portion is located between the support portion and the first protrusion.
Optionally, the battery cell has a through hole, the through hole has a first orifice, the first orifice is located at a first end surface, the first gasket has a first groove recessed into the through hole, the first connection portion has a second groove recessed into the first groove, and the top of the first protrusion abuts against the bottom of the second groove.
Optionally, in a radial direction of the through hole, a size of the through hole is larger than a size of the first protrusion.
Optionally, the first gasket is a metal sheet, and an insulating layer is disposed between the first gasket and the first end surface.
Optionally, the first gasket is fixed with the first connection portion.
Optionally, the casing further has a second protrusion protruding inward, and the battery cell further has a second end surface;
the button battery also comprises a second gasket and a second lug;
the second gasket is arranged on the second end face, the second tab is connected with the battery core, the second tab is provided with a second connecting portion, the second gasket is located between the second end face and the second connecting portion, the second protrusion is located on one side, away from the second gasket, of the second connecting portion, and the second protrusion abuts against the second connecting portion.
Optionally, the housing comprises a first half shell and a second half shell;
the first half shell comprises a first panel and a first side wall arranged around the first panel, the first panel is provided with the first protrusion, and the first end face is opposite to the first panel;
the second half shell includes a second panel and a second sidewall disposed around the second panel;
the first side wall is sleeved on the outer side of the second side wall, and an insulating sealing ring is arranged between the first side wall and the second side wall.
Optionally, the battery cell further has a second end surface opposite to the second panel, the button cell further includes a second tab, the second tab is connected to the battery cell, the second tab has a second connecting portion, and the second connecting portion is connected to the second sidewall.
According to a second aspect of the present invention, there is provided an electronic device comprising a button cell as defined in any one of the first aspect.
The utility model discloses a technological effect lies in, through to the inside convex first arch of casing and first connecting portion butt, makes casing and first utmost point ear form to be connected, and first gasket forms the support to first connecting portion on first terminal surface, makes the effective butt of first arch and first connecting portion, has avoided the safety problem that welding utmost point ear and casing caused.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, 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 invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a button cell in an embodiment of the present disclosure.
Fig. 2 is a second schematic structural diagram of a button cell in the embodiment of the present disclosure.
FIG. 3 is a cross-sectional view of a spacer with a protrusion according to an embodiment of the present disclosure.
Fig. 4 is one of the schematic structural diagrams of the pad provided with the protrusions in the embodiment of the present disclosure.
FIG. 5 is a second cross-sectional view of a protrusion disposed on a gasket in accordance with an embodiment of the present disclosure.
Fig. 6 is a second schematic view of a structure of a protrusion disposed on a gasket according to an embodiment of the disclosure.
Description of reference numerals:
1. a first half shell; 11. a first panel; 111. a first protrusion; 12. a first side wall; 2. a second half shell; 21. a second panel; 22. a second side wall; 3. an insulating seal ring; 4. an electric core; 40. a through hole; 41. a first tab; 411. a first connection portion; 42. a second tab; 421. a second connecting portion; 5. a first gasket; 51. a support portion; 52. a first groove.
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: unless specifically stated otherwise, 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.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, 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 an embodiment of the present disclosure, there is provided a button battery, as shown in fig. 1, including:
a housing having a first protrusion 111 protruding inward.
The battery cell 4 is arranged inside the shell, and the battery cell 4 has a first end face.
And the first gasket 5 is arranged on the first end surface. The first gasket 5 is a sheet structure, and the first gasket 5 is laid on the first end surface.
First utmost point ear 41, first utmost point ear 41 with electricity core 4 is connected, first utmost point ear 41 has first connecting portion 411, first gasket 5 is located between first terminal surface and the first connecting portion 411, first protruding 111 is located keeping away from of first connecting portion 411 one side of first gasket 5, first protruding 111 with first connecting portion 411 butt.
In this embodiment, the first protrusion 111 protruding into the housing abuts against the first connection portion 411, so that the housing is connected to the first tab 41, the first gasket 5 supports the first connection portion 411 on the first end surface, and the first protrusion 111 effectively abuts against the first connection portion 411, thereby avoiding the safety problem caused by welding the tab and the housing.
For example, in the assembled button cell, a gap of a first width is formed between the case and the first connecting portion 411. The height of the first protrusion 111 protruding into the housing is greater than the first width, so as to ensure that the first protrusion 111 is effectively abutted against the first connection portion 411.
In one embodiment, as shown in fig. 3 to 6, the first gasket 5 has a support portion 51 protruding toward the first connection portion 411, and the first connection portion 411 is located between the support portion 51 and the first protrusion 111.
In this embodiment, the supporting portion 51 on the first gasket 5 and the first protrusion 111 are pressed at both sides of the first connection portion 411, so that the first connection portion 411 is located between the first protrusion 111 and the supporting portion 51, and a stable contact is formed. This can increase the contact tightness between the first protrusion 111 and the first connection portion 411, and improve the contact reliability.
The support portion 51 forms a support on a side of the first connecting portion 411 away from the first protrusion 111 to prevent the first connecting portion 411 from being separated from the first protrusion 111.
Alternatively, the support portion 51 has a larger size in the radial direction of the through-hole 40 than the radial size of the through-hole 40.
The support portion 51 is larger in size, and the support portion 51 can be made to cover the through hole 40 to form a support at the first end surface. Therefore, the supporting part 51 can be prevented from being extruded and sunk into the through hole 40, the supporting effect of the supporting part 51 is improved, and the failure of the supporting effect is avoided. The specific size of the supporting portion 51 can be set according to actual requirements.
In one embodiment, as shown in fig. 1 and fig. 2, the battery cell 4 has a through hole 40, the through hole 40 has a first aperture, the first aperture is located at a first end surface, the first gasket 5 has a first groove 52 recessed into the through hole 40, the first connection portion 411 has a second groove recessed into the first groove 52, and a top of the first protrusion 111 abuts against a bottom of the second groove.
In this embodiment, the first connection portion 411 is recessed into the first groove 52, and comes into contact with the first groove 52 through the second groove. The convex structure of first arch 111 cooperates with the sunken structure of second recess, can enough ensure the effective contact of the inner wall of first arch 111 with the second recess, can make the convex height of first arch 111 offset by the sunken of second recess again, reduces the clearance between first connecting portion 411 and the casing, has improved the inside space utilization of button cell. More spaces in the button cell can be used for the battery core 4, and the energy density of the battery can be improved.
In one embodiment, the size of the through hole 40 is larger than the size of the first protrusion 111 in a radial direction of the through hole 40.
In this embodiment, the radial dimension of the through hole 40 is larger, so that the structure of the first protrusion 111 can extend into the through hole 40, the gap between the battery cell 4 and the casing is effectively reduced, and the space utilization rate inside the button battery is improved.
In one embodiment, the first pad 5 is a metal sheet, and an insulating layer is disposed between the first pad 5 and the first end surface.
In this embodiment, the insulating layer can form insulation between the first gasket 5 and the first end surface of the battery cell 4, so that the first gasket 5 is prevented from being conducted with the battery cell 4, and the safety of the button battery is improved.
In one embodiment, the first pad 5 is fixed with the first connection portion 411.
In this embodiment, the first gasket 5 is fixed to the first connecting portion 411 to limit the first gasket 5 from shaking at the first end surface, so as to prevent the first gasket 5 from being separated from the support of the first connecting portion 411, and the first protrusion 111 and the first connecting portion 411 can be effectively pressed.
Optionally, the first gasket 5 is welded with the first connection portion 411 to form a fixation. The welding enables the first gasket 5 and the first connection portion 411 to form a more firm connection structure.
In one embodiment, the projection of the first connection portion 411 on the first pad 5 is located inside the first pad 5.
In this embodiment, the structure of the first connection portion 411 can be completely supported by the first gasket 5. It is ensured that the first gasket 5 can provide support at a position where the first projection 111 abuts against the first connecting portion 411.
In one embodiment, the casing further has a second protrusion protruding inward, and the battery cell 4 further has a second end surface.
The button cell also includes a second gasket and a second tab 42.
The second gasket is arranged on the second end face, the second tab 42 is connected with the battery cell 4, the second tab is provided with a second connecting portion 421, the second gasket is located between the second end face and the second connecting portion 421, the second protrusion is located on one side of the second connecting portion 421, which is far away from the second gasket, and the second protrusion offsets with the second connecting portion 421.
In this embodiment, the second bump abuts against the second connecting portion 421, so that the second bump is electrically connected to the second electrode tab 42. The mode of making casing and second utmost point ear be connected through the welding has been avoided, and when casing internal pressure was too big, the casing can break away from with the second utmost point ear, avoids the battery to continue the power supply, has improved the security.
For example, the portion of the casing in communication with the first tab 41 forms one electrode of a button cell, and the portion of the casing in communication with the second tab 42 forms the other electrode of the button cell. The two electrodes are insulated.
Optionally, the second gasket is also provided with a supporting portion protruding toward the second connection portion 421, and the supporting portion and the second protrusion clamp the second connection portion 421, so that the second protrusion is in close contact with the second connection portion 421.
Optionally, the second pad is recessed into the through hole 40 to form a third groove, the second connection portion 421 is recessed into the second pad to form a fourth groove, and the top of the second protrusion abuts against the inner wall of the fourth groove.
In one embodiment, as shown in fig. 1 and 2, the housing comprises a first half shell 1 and a second half shell 2.
First half shell 1 includes first panel 11 and encircles first lateral wall 12 that first panel 11 set up, first panel 11 is equipped with first arch 111, first terminal surface with first panel 11 is relative.
The second half-shell 2 comprises a second panel 21 and a second side wall 22 arranged around the second panel 21.
The first side wall 12 is sleeved on the outer side of the second side wall 22, and an insulating sealing ring 3 is arranged between the first side wall 12 and the second side wall 22.
In this embodiment, the first panel 11 is in contact with and conducted to the first connection portion 411 through the first protrusion 111, so that the first panel 11 is conducted to the first tab 41, and one electrode of the button battery is formed on the first panel 11.
In one embodiment, as shown in fig. 1 and fig. 2, the battery cell 4 further has a second end surface, the second end surface is opposite to the second panel 21, the button battery further includes a second tab 42, the second tab 42 is connected to the battery cell 4, the second tab 42 has a second connection portion 421, and the second connection portion 421 is connected to the second sidewall 22.
In this embodiment, the second pole ear 42 is electrically connected to the second sidewall 22 through the second connection portion 421. The second half-shell 2 forms one electrode of the button cell.
For example, the second connection portion 421 is clamped between the side wall of the battery cell 4 and the second side wall 22, and the clamping force between the battery cell 4 and the second side wall 22 can improve the reliability of the connection and conduction between the second connection portion 421 and the second side wall 22, so as to prevent the second connection portion 421 from being separated from the second side wall 22.
Optionally, the second tab 42 is connected to the inside of the battery cell 4 and extends out to the second end surface of the battery cell 4. The second tab 42 extends from the second end surface to the side wall of the battery cell 4 so as to be located between the second side wall 22 and the side wall of the battery cell 4. Under the condition that the air pressure inside the button battery is too large, the second panel 21 is not connected with the battery core 4 and can be separated from the battery core, and the part of the second tab 42 on the second end surface can provide a moving space for the separation of the second half shell 2 and the battery core 4, so that the second tab 42 is prevented from limiting the separation of the second half shell 2 and the battery core 4.
Optionally, the second connection portion 421 of the second tab 42 is welded to the second sidewall 22, so that the second connection portion 421 is electrically connected to the second sidewall 22. The welding can improve the connection firmness of the second connection portion 421 and the second side wall 22, so as to avoid the electrical connection failure of the second tab 42 and the second half shell 2.
According to an embodiment of the present disclosure, there is provided an electronic device including a button cell as in any one of the embodiments of the present disclosure.
The electronic equipment has the technical effects brought by the button battery.
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 purposes of illustration and is not intended to limit the scope of the invention. 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 invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A button cell, comprising:
a housing having a first protrusion protruding inward;
the battery cell is arranged inside the shell and provided with a first end face;
the first gasket is arranged on the first end face;
the battery cell comprises a first tab, the first tab is connected with the battery cell and provided with a first connecting portion, a first gasket is located between a first end face and the first connecting portion, a first protrusion is located on one side, away from the first gasket, of the first connecting portion, and the first protrusion is abutted to the first connecting portion.
2. The button cell according to claim 1, wherein the first spacer has a support portion protruding toward the first connection portion, and the first connection portion is located between the support portion and the first protrusion.
3. The button battery according to claim 1, wherein the cell has a through hole, the through hole has a first aperture, the first aperture is located at the first end face, the first gasket has a first groove recessed into the through hole, the first connection portion has a second groove recessed into the first groove, and a top of the first protrusion abuts against a bottom of the second groove.
4. The button cell according to claim 3, wherein a dimension of the through hole is larger than a dimension of the first protrusion in a radial direction of the through hole.
5. The button cell as recited in claim 1, wherein the first spacer is a metal sheet, and an insulating layer is disposed between the first spacer and the first end surface.
6. The button cell according to claim 1, wherein the first gasket is fixed to the first connection portion.
7. The button cell of claim 1, wherein the casing further has a second protrusion protruding inward, and the cell further has a second end surface;
the button battery also comprises a second gasket and a second lug;
the second gasket is arranged on the second end face, the second tab is connected with the battery core, the second tab is provided with a second connecting portion, the second gasket is located between the second end face and the second connecting portion, the second protrusion is located on one side, away from the second gasket, of the second connecting portion, and the second protrusion abuts against the second connecting portion.
8. The button cell of claim 1, wherein the housing comprises a first half shell and a second half shell;
the first half shell comprises a first panel and a first side wall arranged around the first panel, the first panel is provided with the first protrusion, and the first end face is opposite to the first panel;
the second half shell includes a second panel and a second sidewall disposed around the second panel;
the first side wall is sleeved on the outer side of the second side wall, and an insulating sealing ring is arranged between the first side wall and the second side wall.
9. The button cell of claim 8, wherein the cell further comprises a second end surface opposite to the second panel, and wherein the button cell further comprises a second tab connected to the cell and having a second connecting portion connected to the second sidewall.
10. An electronic device, characterized in that it comprises a button cell according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220387520.2U CN217086722U (en) | 2022-02-24 | 2022-02-24 | Button cell and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220387520.2U CN217086722U (en) | 2022-02-24 | 2022-02-24 | Button cell and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217086722U true CN217086722U (en) | 2022-07-29 |
Family
ID=82545302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220387520.2U Active CN217086722U (en) | 2022-02-24 | 2022-02-24 | Button cell and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217086722U (en) |
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2022
- 2022-02-24 CN CN202220387520.2U patent/CN217086722U/en active Active
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