CN217562769U - Button cell and electronic equipment - Google Patents
Button cell and electronic equipment Download PDFInfo
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- CN217562769U CN217562769U CN202220855178.4U CN202220855178U CN217562769U CN 217562769 U CN217562769 U CN 217562769U CN 202220855178 U CN202220855178 U CN 202220855178U CN 217562769 U CN217562769 U CN 217562769U
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- side wall
- panel
- button cell
- face
- sidewall
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a button cell and electronic equipment, button cell includes: the shell comprises a first half shell and a second half shell, wherein the first half shell comprises a first panel and a first side wall arranged on the first panel; the second half shell comprises a second panel and a second side wall arranged on the second panel, the first side wall is sleeved on the outer side of the second side wall to form a shell of the button cell, and an insulating sealing ring is arranged between the first side wall and the second side wall. The battery cell is arranged in the shell and provided with a first end face and a second end face, the first end face is arranged opposite to the first panel, and the second end face is arranged opposite to the second panel; the first tab is arranged on the battery cell, extends to the first end face and is electrically connected with the first panel; the second lug is arranged on the battery cell and extends to the first end face; the metal foil is arranged on the second side wall, extends to the first end face and is electrically connected with the second pole lug.
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
At present, in the assembly process of the button cell, a lug and a shell need to be welded. The welding of the lug and the shell needs to be carried out after the battery cell is assembled, the difficulty of welding the lug and the battery cell is high, and the problem of infirm welding or insufficient welding is easy to occur. Two tabs are positioned at two ends of the battery cell, and the space occupied in the shell is too large, so that the capacity of the button battery is limited.
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, and button cell includes:
the shell comprises a first half shell and a second half shell, wherein the first half shell comprises a first panel and a first side wall arranged on the first panel;
the second half shell comprises a second panel and a second side wall arranged on the second panel, the first side wall is sleeved on the outer side of the second side wall to form a shell of the button cell, and an insulating sealing ring is arranged between the first side wall and the second side wall;
the battery cell is arranged in the shell and provided with a first end face and a second end face, the first end face is arranged opposite to the first panel, and the second end face is arranged opposite to the second panel;
the first tab is arranged on the battery cell, extends to the first end face and is electrically connected with the first panel;
the second pole lug is arranged on the battery cell and extends to the first end face;
the metal foil is arranged on the second side wall, extends to the first end face and is electrically connected with the second pole lug.
Optionally, the first tab includes a first connection portion extending to a first end surface, the first connection portion is tiled on the first end surface, and the first connection portion is electrically connected to the first panel.
Optionally, the first panel is provided with a protruding structure protruding towards the inside of the housing, and the first tab is electrically connected with the protruding structure.
Optionally, the second tab has a second connecting portion extending to the first end surface, the second connecting portion is tiled on the first end surface, the metal foil has a third connecting portion disposed on the second side wall and a fourth connecting portion extending to the first end surface, the fourth connecting portion is stacked on the second connecting portion, and the fourth connecting portion is electrically connected to the second connecting portion.
Optionally, the second connection portion is located between the fourth connection portion and the first end face.
Optionally, the button cell further includes an insulating layer disposed between the first half shell and the metal foil.
Optionally, the second side wall has a first side wall portion, a bent portion, and a second side wall portion, the first side wall portion is connected to the second panel, the bent portion is disposed on a side of the first side wall portion away from the second panel, the bent portion is inclined outward relative to the first side wall portion, the second side wall portion is disposed on an outer side of the bent portion, and the metal foil is connected to an inner side of the second side wall portion.
Optionally, the first sidewall covers at least part of the second sidewall, the bent portion, and the first sidewall.
Optionally, the first sidewall and the second sidewall are both cylindrical, and a portion of the metal foil on the second sidewall is an arc-shaped foil attached to the inside of 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 aspects.
The utility model has the advantages of, be connected in first terminal surface one side through set up metallic foil and second utmost point ear at the second lateral wall, reduced the second utmost point ear and half the shell the degree of difficulty of being connected of second, and make second utmost point ear and first utmost point ear all be located first terminal surface one side, reserve more spaces for electric core, can be used for improving button cell's capacity.
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 one of the schematic structural diagrams of a button cell in an embodiment of the present application.
Fig. 2 is a second schematic structural diagram of a button cell in an embodiment of the present application.
Fig. 3 is a third schematic structural diagram of a button cell in an embodiment of the present application.
Fig. 4 is one of the assembly schematic diagrams of a button cell in one embodiment of the present application.
Fig. 5 is a second schematic view of the assembly of a button cell in an embodiment of the present application.
Description of reference numerals:
1. a first half shell; 11. a first panel; 111. a raised structure; 12. a first side wall; 2. a second half shell; 21. a second panel; 22. a second side wall; 221. a first side wall portion; 222. a second side wall portion; 223. a bent portion; 3. an insulating seal ring; 4. an electric core; 41. a first end face; 42. a second end face; 5. a first tab; 51. a first connection portion; 6. a second tab; 61. a second connecting portion; 7. a metal foil; 71. a third connecting portion; 72. a fourth connecting portion; 8. an insulating layer.
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 application, there is provided a button battery, as shown in fig. 1 to 5, including:
a first half-shell 1, said first half-shell 1 comprising a first panel 11 and a first side wall 12 provided to said first panel 11;
the second half shell 2 comprises a second panel 21 and a second side wall 22 arranged on the second panel 21, the first side wall 12 is sleeved outside the second side wall 22 to form a shell of the button cell, and an insulating sealing ring 3 is arranged between the first side wall 12 and the second side wall 22;
the battery cell 4 is arranged in the casing, the battery cell 4 has a first end surface 41 and a second end surface 42, the first end surface 41 is arranged opposite to the first panel 11, and the second end surface 42 is arranged opposite to the second panel 21;
the first tab 5 is arranged on the battery cell 4, the first tab 5 extends to the first end surface 41, and the first tab 5 is electrically connected with the first panel 11;
the second electrode tab 6, the second electrode tab 6 is disposed on the battery cell 4, and the second electrode tab 6 extends to the first end surface 41;
a metal foil 7, wherein the metal foil 7 is disposed on the second sidewall 22, the metal foil 7 extends to the first end surface 41, and the metal foil 7 is electrically connected to the second tab 6.
In the embodiment of the application, the metal foil 7 and the second tab 6 are arranged on the second side wall 22 and connected on one side of the first end face 41, so that the connection difficulty of the second tab 6 and the second half shell 2 is reduced, the second tab 6 and the first tab 5 are both located on one side of the first end face 41, more spaces are reserved for the battery core 4, and the capacity of the button battery can be improved.
During the assembly process of the button cell:
the metal foil 7 is first fixed to the inside of the second side wall 22, and the metal foil 7 is electrically connected to the second side wall 22. For example, the metal foil 7 is welded to the second side wall 22.
The cells are then inserted into the second half-shell 2, such that the second end surface 42 is opposite to the second panel 21. The second panel 21 is located at one end of the second side wall 22, the other end of the second side wall 22 forming an opening, so that the first end face 41 faces in the direction of the opening of the second half-shell 2. As shown in fig. 4 and 5, the metal foil 7 and the second tab 6 can both extend out of the opening of the second half-shell 2, so that the welding is facilitated, and the welding difficulty is reduced. After the metal foil 7 and the second tab 6 are welded, the metal foil 7 and the second tab 6 are bent to the first end surface 41 side. First utmost point ear 5 also buckles to first terminal surface 41 one side, and first utmost point ear 5 and second utmost point ear 6 all are located first terminal surface 41 one side, and first utmost point ear 5 and the 6 shared one side space of second utmost point ear have reduced the space that occupies between electric core 4 and shell, can reserve more spaces for electric core 4 to increase electric core 4's volume, be used for improving button cell's capacity.
Then, the first side wall 12 is sleeved on the outer side of the second side wall 22, so that the first half-shell 1 is fastened to the outer side of the second half-shell 2. Before the first side wall 12 is sleeved, the insulating sealing ring 3 is sleeved outside the second side wall 22, so that the insulating sealing ring 3 is located between the first side wall 12 and the second side wall 22.
Finally, the first tab 5 is welded to the outside of the first panel 11 to electrically connect the first tab to the first panel 11.
In one embodiment, as shown in fig. 2, the first tab 5 includes a first connection portion 51 extending to the first end surface 41, the first connection portion 51 is laid on the first end surface 41, and the first connection portion 51 is electrically connected to the first panel 11.
In the embodiment of the present application, a first tab 5 is provided on the battery cell 4, and the first tab 5 is led out from the battery cell 4 and extends to the first end face 41. For example, a part of the structure of the first tab 5 is located in the battery cell 4, and the first tab 5 is led out from the first end face 41 and bent to be laid on the first end face 41. The portion that is laid on the first end surface 41 is a first connection portion 51, and the first connection portion 51 is used for electrically connecting with the first panel 11.
In one embodiment, the first panel 11 is provided with a protruding structure 111 protruding toward the inside of the housing, and the first tab 5 is electrically connected to the protruding structure 111.
In the embodiment of the present application, the first panel 11 protrudes toward the inside of the button battery to form a protruding structure 111, and the protruding structure 111 more easily abuts against the first tab 5, so as to facilitate the connection of the first panel 11 and the first tab 5. When the first panel 11 is formed with the protruding structure 111 protruding inward, the corresponding recessed structure is formed on the outer side, and the recessed structure can be used to position the position where the protruding structure 111 is connected with the first tab 5.
For example, the first connection portion 51 on the first tab 5 is located between the first end surface 41 and the projection structure 111. The convex structure 111 is pressed against the first connecting portion 51, and when the outer side of the first panel 11 is welded, the concave structure on the outer side of the convex structure 111 is used for positioning, so as to weld the first panel 11 and the first connecting portion 51.
In one embodiment, as shown in fig. 2, the second tab 6 has a second connection portion 61 extending to the first end surface 41, the second connection portion 61 is laid on the first end surface 41, the metal foil 7 has a third connection portion 71 provided on the second side wall 22 and a fourth connection portion 72 extending to the first end surface 41, the fourth connection portion 72 is stacked on the second connection portion 61, and the fourth connection portion 72 is electrically connected to the second connection portion 61.
In the embodiment of the present application, the third connection portion 71 of the metal foil 7 is used for connection with the inner side of the second side wall 22, and the fourth connection portion 72 is used for connection with the second connection portion 61 of the second pole ear 6. The metal foil 7 and the second tab 6 are both in a sheet shape, and the fourth connection portion 72 is connected to the second connection portion 61 and then bent to the first end surface 41, thereby forming a structure stacked on the first end surface 41.
In one embodiment, the second connecting portion 61 is located between the fourth connecting portion 72 and the first end surface 41.
In the embodiment of the present application, the second connecting portion 61 and the fourth connecting portion 72 are connected and then bent toward the first end surface 41, so that the second connecting portion 61 faces the first end surface 41 side, and the second connecting portion 61 is located between the first end surface 41 and the fourth connecting portion 72.
For example, after the battery cell 4 is assembled in the second half case 2, the second connection portion 61 and the fourth connection portion 72 are welded to extend out of the second half case 2, and then bent toward the first end surface 41.
In one embodiment, the button cell further comprises an insulating layer 8, wherein the insulating layer 8 is arranged between the first half shell 1 and the metal foil 7.
In the embodiment of the present application, the insulating layer 8 forms an insulation between the first half-shell 1 and the metal foil 7, avoiding the metal foil 7 to be in conduction with the first half-shell 1.
For example, the insulating layer 8 is located between the first panel 11 and the fourth connection portion 72. The insulating layer 8 may extend to the second side wall 22 to effectively form an insulation between the first half shell 1 and the metal foil 7.
In one embodiment, as shown in fig. 2, the structure of fig. 2, in which the second side wall 22 is marked on one side, comprises a first side wall portion 221, a bent portion 223 and a second side wall portion 222, and the second half-shell 2 comprises a second panel 21 and a second side wall 22, on the other side. The second sidewall 22 includes a first sidewall 221, a bent portion 223, and a second sidewall 222, the first sidewall 221 is connected to the second panel 21, the bent portion 223 is disposed on a side of the first sidewall 221 away from the second panel 21, the bent portion 223 is inclined toward an outer side of the button cell with respect to the first sidewall 221, the second sidewall 222 is disposed on an outer side of the bent portion 223, and the metal foil 7 is connected to an inner side of the second sidewall 222.
In the embodiment of the present application, the bent portion 223 is inclined outward with respect to the first side wall portion 221, so that the second side wall portion 222 has a larger inner diameter with respect to the first side wall portion 221. In the structure of the button battery, the distance between the second side wall portion 222 and the battery cell 4 is larger relative to the distance between the first side wall portion 221 and the battery cell 4, and the second side wall portion 222 and the battery cell 4 have a larger space, so that a space is more easily left to connect the metal foil 7 and the second side wall 22.
In one embodiment, the first sidewall 12 is sleeved outside the second sidewall 22, and the first sidewall 12 covers at least a portion of the second sidewall 222, the bent portion 223 and the first sidewall 221.
In the embodiment of the present application, the first sidewall 12 covers at least a portion of the second sidewall 222, the bent portion 223 and the first sidewall 221, so as to form an inverted buckle at the position of the bent portion 223, so as to increase the structural strength after the first sidewall 12 and the second sidewall 22 are sleeved, and improve the structural strength of the buckling of the first half-shell 1 and the second half-shell 2.
In one embodiment, the first sidewall 12 and the second sidewall 22 are both cylindrical, and the portion of the metal foil 7 disposed on the second sidewall 22 is an arc-shaped foil fitting into the second sidewall 22.
In the embodiment of the present application, the metal foil 7 has a partially arc-shaped structure to form an arc-shaped foil, and the partially arc-shaped structure is attached to the inner side of the second sidewall 22, so that the structure of the second sidewall 22 is more suitable and the assembly is easier.
For example, the third connection portion 71 of the metal foil 7 has an arc-shaped structure.
According to one embodiment of the application, an electronic device is provided, and the electronic device comprises the button cell.
This electronic equipment has the technological effect that this application button cell brought.
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:
the first half shell comprises a first panel and a first side wall arranged on the first panel;
the second half shell comprises a second panel and a second side wall arranged on the second panel, the first side wall is sleeved on the outer side of the second side wall to form a shell of the button cell, and an insulating sealing ring is arranged between the first side wall and the second side wall;
the battery cell is arranged in the shell and provided with a first end face and a second end face, the first end face is arranged opposite to the first panel, and the second end face is arranged opposite to the second panel;
the first tab is arranged on the battery cell, extends to the first end face and is electrically connected with the first panel;
the second lug is arranged on the battery cell and extends to the first end face;
the metal foil is arranged on the second side wall, extends to the first end face and is electrically connected with the second pole lug.
2. The button cell according to claim 1, wherein the first tab includes a first connection portion extending to a first end surface, the first connection portion being tiled at the first end surface, the first connection portion being electrically connected to the first panel.
3. The button cell as set forth in claim 1, wherein the first panel is provided with a protrusion structure protruding toward the inside of the housing, and the first tab is electrically connected to the protrusion structure.
4. The button cell as set forth in claim 1, wherein the second tab has a second connecting portion extending to the first end surface, the second connecting portion is tiled on the first end surface, the metal foil has a third connecting portion disposed on the second sidewall and a fourth connecting portion extending to the first end surface, the fourth connecting portion is stacked with the second connecting portion, and the fourth connecting portion is electrically connected with the second connecting portion.
5. The button cell according to claim 4, wherein the second connection portion is located between the fourth connection portion and the first end surface.
6. The button cell according to claim 1, further comprising an insulating layer disposed between the first half shell and the metal foil.
7. The button cell according to claim 1, wherein the second side wall has a first side wall portion, a bent portion, and a second side wall portion, the first side wall portion is connected to the second panel, the bent portion is provided on a side of the first side wall portion away from the second panel, the bent portion is inclined outward with respect to the first side wall portion, the second side wall portion is provided on an outer side of the bent portion, and the metal foil is connected to an inner side of the second side wall portion.
8. The button cell according to claim 7, wherein the first sidewall covers at least a portion of the second sidewall, the bent portion, and the first sidewall.
9. The button cell according to claim 1, wherein the first and second sidewalls are both cylindrical, and the portion of the metal foil on the second sidewall is an arc-shaped foil that fits inside 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 |
|---|---|---|---|
| CN202220855178.4U CN217562769U (en) | 2022-04-13 | 2022-04-13 | Button cell and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220855178.4U CN217562769U (en) | 2022-04-13 | 2022-04-13 | Button cell and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217562769U true CN217562769U (en) | 2022-10-11 |
Family
ID=83471228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220855178.4U Active CN217562769U (en) | 2022-04-13 | 2022-04-13 | Button cell and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217562769U (en) |
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2022
- 2022-04-13 CN CN202220855178.4U patent/CN217562769U/en active Active
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