CN213340530U - High-capacity button cell - Google Patents
High-capacity button cell Download PDFInfo
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- CN213340530U CN213340530U CN202022607427.1U CN202022607427U CN213340530U CN 213340530 U CN213340530 U CN 213340530U CN 202022607427 U CN202022607427 U CN 202022607427U CN 213340530 U CN213340530 U CN 213340530U
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- rubber ring
- insulating rubber
- button cell
- plate
- metal
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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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Abstract
The utility model provides a large capacity button cell, it includes metal-back, metal cover plate, insulating rubber ring and electric core. The metal shell is a cylindrical structure with an opening at one end, and a support piece is arranged on the inner side of the metal shell. The metal cover plate is positioned on the support and closes the opening. The insulating rubber ring is arranged between the metal shell and the metal cover plate in an isolated mode, and the battery core is arranged in the metal shell. Wherein the periphery of the metal cover plate is provided with a notch, the periphery of the metal cover plate is wrapped by an insulating rubber ring, a clamping block is arranged on the insulating rubber ring, and the clamping block is connected with the notch. The utility model discloses a large capacity button cell sets up the fixture block through setting up the breach at the metal covering plate periphery, on the insulating rubber ring, the fixture block is connected with the breach to make and be connected the fastening between metal covering plate and the insulating rubber ring, the leakproofness is good.
Description
Technical Field
The utility model relates to a battery field, in particular to large capacity button cell.
Background
The battery is a device capable of converting chemical energy into electric energy, and is widely applied to various products such as toys, photoelectric ornaments, small household appliances and the like. The battery can be classified into a cylindrical battery, a square battery, a special-shaped battery and a button battery. The button cell is a cell with the external dimension like a small button, and generally has a larger diameter and a thinner thickness. The button cell in the prior art has the problem of unstable packaging.
Therefore, it is necessary to provide a large-capacity button cell to solve the above-mentioned technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a large capacity button cell, it sets up the breach through peripheral at the metal covering plate, sets up the fixture block on the insulating rubber ring, and the fixture block is connected with the breach to make to be connected the fastening between metal covering plate and the insulating rubber ring, the leakproofness is good, with the not stable enough problem of button cell encapsulation among the solution prior art.
In order to solve the technical problem, the utility model adopts the technical scheme that: a large capacity button cell battery comprising:
the metal shell is of a cylindrical structure with an opening at one end, and a support piece is arranged on the inner side of the metal shell;
the metal cover plate is positioned on the support and closes the opening;
the insulating rubber ring is arranged between the metal shell and the metal cover plate in an isolated mode; and
the battery cell is arranged in the metal shell, and the support piece limits the battery cell;
the metal cover plate is provided with a notch at the periphery, the insulating rubber ring wraps the periphery of the metal cover plate, and a clamping block is arranged on the insulating rubber ring and connected with the notch.
In the present invention, the plurality of notches are equally spaced around the periphery of the metal cover plate.
In the utility model, the distance between the adjacent gaps is 3-6 times of the width of the gap.
The utility model discloses in, metal decking includes the main part board and encircles the peripheral board that sinks of main part board, it is less than to sink the board the surface of main part board, insulating rubber ring parcel sink the board, insulating rubber ring surface with the surface parallel and level of main part board.
The gap is arranged on the sinking plate and comprises a lateral opening, and the lateral opening is located on the outer lateral surface of the sinking plate.
Further, the surface of the sinking plate is used as a projection surface for projection, and the width of the lateral opening is smaller than or equal to the maximum width in the notch.
Furthermore, the surface of the sinking plate is taken as a projection plane, and the projection of the notch is in a trapezoidal shape, a circular shape or a polygonal shape.
In addition, the notch is a through hole, and the notch is triangular, trapezoidal, circular or polygonal.
In the utility model discloses, the metal casing is close to the inside bending type in open-ended border becomes the hem, the hem joint is in on the circumference side of insulating rubber ring, the hem with metal decking's surface parallel and level.
The utility model discloses in, support piece is the tubular structure that both ends link up, support piece is located in the metal-back, support piece is close to open-ended one end is provided with the backup pad, the backup pad is right the insulating rubber ring forms the support, support piece insulating rubber ring and it has the colloid to fill between the interior week side of metal-back.
The utility model discloses compare in prior art, its beneficial effect is: the utility model discloses a large capacity button cell sets up the fixture block through setting up the breach at the metal covering plate periphery, on the insulating rubber ring, the fixture block is connected with the breach to make and be connected the fastening between metal covering plate and the insulating rubber ring, the leakproofness is good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding drawings of some embodiments of the present invention.
Fig. 1 is a schematic diagram of the cross-sectional structure of a large-capacity button cell battery of the present invention.
Fig. 2 is the schematic diagram of the local structure of the metal cover plate wrapped by the insulating rubber ring of the large-capacity button cell battery.
Fig. 3 is a schematic structural view of the metal cover plate and the explosion-proof sheet of the high-capacity button cell battery of the present invention.
Fig. 4 is a schematic diagram of one alternative scheme of the metal cover plate of the high-capacity button cell battery of the present invention.
Fig. 5 is a second schematic diagram of an alternative scheme of the metal cover plate of the high-capacity button cell battery of the present invention.
Fig. 6 is a third schematic diagram of an alternative scheme of the metal cover plate of the high-capacity button cell battery of the present invention.
Fig. 7 is a fourth schematic diagram of an alternative scheme of the metal cover plate of the high-capacity button cell battery of the present invention.
Fig. 8 is a schematic cross-sectional view of a fourth embodiment of the high-capacity button cell battery of the present invention.
The names of the reference numerals are as follows:
11: a metal shell; 12: a metal cover plate; 121, a main body plate; 122, sinking plate; 123, bending section; 124, explosion-proof through holes; 125: sinking a groove; 126 a: a notch; 126 b: a notch; 126 c: a notch; 126 d: a notch; 126d 1: a convex portion; 126 e: a notch; 13: an insulating rubber ring; 14: an electric core; 141: a negative electrode tab; 142: a positive electrode tab; 15: a support member; 16: a colloid; 17: an explosion-proof sheet; 171: a fracture line; 18: an insulating sheet is arranged; 19: and (6) an insulating sheet is arranged.
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 the skilled in the art without creative work belong to the protection scope of the present invention.
In the present invention, the directional terms, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", refer to the orientation of the drawings, and the directional terms are used for illustration and understanding, but not for limiting the present invention.
The terms "first," "second," and the like in the terms of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, nor should they be construed as limiting in any way.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly, e.g., the connection may be a detachable connection or a connection in a unitary structure; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The button cell in the prior art has the problem of unstable encapsulation.
The present invention provides a preferred embodiment of a large-capacity button cell battery capable of solving the above technical problems.
Referring to fig. 1, fig. 1 is a schematic cross-sectional view of a large capacity button cell battery of the present invention.
In the drawings, elements having similar structures are denoted by the same reference numerals.
The utility model provides a large capacity button cell, it includes metal-back 11, metal decking 12, insulating rubber ring 13 and electric core 14. The electrolyte filled in the button cell of the embodiment can be a liquid electrolyte or a solid electrolyte.
The metal shell 11 has a cylindrical structure with an opening at one end, as shown in fig. 1, the top of the metal shell 11 is open, and a support 15 is disposed inside the metal shell 11.
The metal cover plate 12 is positioned on the support 15 and closes the opening.
The insulating rubber ring 13 is arranged between the metal shell 11 and the metal cover plate 12 in an isolated mode.
The battery cell 14 is arranged in the metal shell 11, and the support piece 15 limits the battery cell 14.
The battery cell 14 may be a winding battery cell, a stacked battery cell, or a lap winding battery cell in the prior art, and the battery cell 14 may lead positive and negative electrodes through corresponding tabs, and connect the positive and negative electrodes to the metal shell 11 or the metal cover plate 12, respectively, for example, in this embodiment, the positive electrode tab 142 is connected to the metal shell 11, and the negative electrode tab 141 is connected to the metal cover plate 12.
Referring to fig. 3, a notch 126a is formed in the periphery of the metal cover plate 12, the insulating rubber ring 13 wraps the periphery of the metal cover plate 12, and a clamping block is arranged on the insulating rubber ring 13 and connected with the notch 126a, so that the metal cover plate 12 and the insulating rubber ring 13 are connected and fastened, and the sealing performance is good.
In the present embodiment, the plurality of notches 126a are equidistantly distributed on the periphery of the metal cover 12, so that the metal cover 12 and the insulating rubber 13 have a uniform connecting force therebetween.
The spacing between adjacent notches 126a in this embodiment is 3-6 times the width of the notches.
In addition, an upper insulation sheet 18 may be disposed between the battery cell 14 and the inner surface of the metal cover plate 12, and a lower insulation sheet 19 may be disposed between the battery cell 14 and the inner bottom surface of the metal shell 11, as the case may be.
Referring to fig. 2, in the present invention, the metal cover plate 12 includes a main body plate 121 and a sinking plate 122 surrounding the periphery of the main body plate 121, the sinking plate 122 is lower than the outer surface of the main body plate 121, the insulating rubber ring 13 wraps the sinking plate 122, the outer surface of the insulating rubber ring 13 is flush with the outer surface of the main body plate 121, so that the insulating rubber ring 13 can better form a tight package on the metal cover plate 12, meanwhile, the insulating rubber ring 13 does not protrude to affect the size of the button cell, on the other hand, the sinking plate 122 is lower than the metal shell 11, so that the metal shell 11 can wrap the metal cover plate 12 more tightly.
Referring to fig. 1 and 2, the rubber insulating ring 13 extends to contact with the inner surface of the main body plate 121, the rubber insulating ring 13 extends to the inner circumferential side of the supporting member 15, and a circle of convex ribs are formed on the rubber insulating ring 13, so as to enhance the strength of the rubber insulating ring 13.
The main body plate 121 and the sinking plate 122 can be connected by a bending section 123, and the insulating rubber ring 13 extends and wraps the bending section 123.
In the present embodiment, the notch 126a is disposed on the sinking plate 122, and the notch 126a includes a lateral opening, which is located on the outer side surface of the sinking plate 122.
In the extending direction of the perpendicular line on the surface of the metal cover plate 12, the notch 126a penetrates through the metal cover plate 12, so that the notch 126a is more tightly fitted with the latch.
Preferably, the surface of the lower sinking plate 122 is a projection plane, and the width of the lateral opening is smaller than or equal to the maximum width in the notch 126a, so that the latch is tightly fitted with the notch 126a and is not easy to loosen.
Preferably, as shown in fig. 3, the surface of the lower sinking plate 122 is a projection plane, and the projection of the notch 126a is a trapezoid.
Alternatively, as shown in fig. 4, the projection of the gap 126b may also be a circle shape with the surface of the lower sinking plate 122 being a projection plane, wherein the gap 126b is not a closed complete circle due to the existence of the lateral opening.
Alternatively, as shown in fig. 5, the projection of the gap 126c may also be a polygonal shape, with the surface of the lower plate 122 being a projection plane.
In this embodiment, the edge of the metal shell 11 close to the opening is bent inward to form a folded edge, the folded edge is clamped on the circumferential side surface of the insulating rubber ring 13, and the height of the folded edge protruding out of the outer surface of the metal cover plate 12 is smaller than the thickness of the folded edge, so that the space inside the button cell is larger under the condition that the button cell maintains the same thickness, and the capacity of the cell is further increased.
Preferably, the folded edge in this embodiment is flush with the outer surface of the metal cover plate 12, so as to be more beneficial to enlarging the inner space of the button cell, and meanwhile, the metal shell 11 can better wrap the insulating rubber ring 13.
The utility model discloses in, support piece 15 is the tubular structure that both ends link up, and support piece 15 is located metal casing 11, and support piece 15 is close to open-ended one end and is provided with the backup pad, and the backup pad forms the support to insulating rubber ring 13, and it has colloid 16 to fill between the interior all sides of support piece 15, insulating rubber ring 13 and metal casing 11 for connect between support piece 15, insulating rubber ring 13 and the metal casing 11 inseparabler, firm.
Meanwhile, the outer peripheral side surface of the supporting member 15 can be arranged to be attached to the inner peripheral side surface of the metal shell 11, so that the connection between the supporting member 15 and the metal shell 11 is more tight and stable.
Referring to fig. 3, in the present invention, the outer surface of the metal cover plate 12 is provided with a sinking groove 125, an explosion-proof through hole 124 penetrating through the metal cover plate 12 is provided in the sinking groove 125, an explosion-proof sheet 17 is provided in the sinking groove 125, the explosion-proof through hole 124 is sealed by the explosion-proof sheet 17, a fracture line 171a is provided on the surface of the explosion-proof sheet 17, when the battery generates heat, high-pressure gas is generated inside the battery, and the high-pressure gas can fracture the explosion-proof sheet 17 along the fracture line 171a, so that the high-pressure gas can be released through the explosion-proof through hole 124 to prevent the.
The fracture line 171a in this embodiment may be disposed around the explosion-proof through hole 124, and the fracture line 171a is an annular structure.
The explosion-proof through hole 124, the sinking groove 125 and the explosion-proof sheet 17 form an explosion-proof structure, wherein the explosion-proof structure can be disposed on the outer surface of the metal cover plate 12, or disposed on the outer surface of the metal shell 11 away from the metal cover plate 12, and of course, a user can select whether to install the explosion-proof structure according to his own requirements.
The high-capacity button cell of this embodiment sets up the breach through setting up at the metal covering plate periphery, sets up the fixture block on the insulating rubber ring, and the fixture block is connected with the breach to make to be connected the fastening between metal covering plate and the insulating rubber ring, the leakproofness is good.
The present invention provides a second embodiment of a large capacity button cell battery capable of solving the above technical problems.
Referring to fig. 1 and fig. 6, the present invention provides a high capacity button cell, which includes a metal shell 11, a metal cover plate 12, an insulating rubber ring 13 and a battery cell 14.
The metal shell 11 has a cylindrical structure with an opening at one end, as shown in fig. 1, the top of the metal shell 11 is open, and a support 15 is disposed inside the metal shell 11.
The metal cover plate 12 is positioned on the support 15 and closes the opening.
The insulating rubber ring 13 is arranged between the metal shell 11 and the metal cover plate 12 in an isolated mode.
The battery cell 14 is disposed within the metal shell 11.
The metal shell 11 is bent inward to form a folded edge near the edge of the opening, the folded edge is clamped on the circumferential side face of the insulating rubber ring 13, and the height of the folded edge protruding out of the outer surface of the metal cover plate 12 is smaller than the thickness of the folded edge, so that the space inside the button cell is larger under the condition that the button cell maintains the same thickness, and the capacity of the cell is conveniently increased.
The utility model discloses in, metal covering plate 12 periphery is provided with breach 126d, and insulating rubber ring 13 parcel is provided with the fixture block in metal covering plate 12's periphery on insulating rubber ring 13, and the fixture block is connected with breach 126d to make and be connected the fastening between metal covering plate 12 and the insulating rubber ring 13, the leakproofness is good.
The notch 126d penetrates the metal cover 12 in a direction perpendicular to the metal cover 12, the notch 126d penetrates a side surface of the metal cover 12, and a lateral through-hole is formed in the side surface of the metal cover 12.
The main difference between this embodiment and the first embodiment is that the notch 126d is square, and a protrusion 126d1 is disposed on the inner wall of the notch 126d near the lateral through hole, so that the latch is tightly fitted with the notch and is not easily loosened.
The present invention provides a third embodiment of a large capacity button cell battery capable of solving the above technical problems.
Referring to fig. 1 and 7, the present invention provides a high capacity button cell, which includes a metal shell 11, a metal cover plate 12, an insulating rubber ring 13 and a battery cell 14.
The metal shell 11 has a cylindrical structure with an opening at one end, as shown in fig. 1, the top of the metal shell 11 is open, and a support 15 is disposed inside the metal shell 11.
The metal cover plate 12 is positioned on the support 15 and closes the opening.
The insulating rubber ring 13 is arranged between the metal shell 11 and the metal cover plate 12 in an isolated mode.
The battery cell 14 is disposed within the metal shell 11.
The metal shell 11 is bent inward to form a folded edge near the edge of the opening, the folded edge is clamped on the circumferential side face of the insulating rubber ring 13, and the height of the folded edge protruding out of the outer surface of the metal cover plate 12 is smaller than the thickness of the folded edge, so that the space inside the button cell is larger under the condition that the button cell maintains the same thickness, and the capacity of the cell is conveniently increased.
The utility model discloses in, metal covering plate 12 periphery is provided with breach 126e, and insulating rubber ring 13 parcel is provided with the fixture block in metal covering plate 12's periphery on insulating rubber ring 13, and the fixture block is connected with breach 126e to make and be connected the fastening between metal covering plate 12 and the insulating rubber ring 13, the leakproofness is good.
The metal cover 12 includes a main body 121 and a sinking plate 122 surrounding the main body 121, and a notch 126e is disposed on the sinking plate 122.
The main difference between the present embodiment and the first embodiment is that the gap 126e is a through hole, wherein the through hole can be, but not limited to, a circular shape, and it can also be a triangle, a trapezoid, various polygons, and so on.
As follows the utility model provides a fourth embodiment of a large capacity button cell battery which can solve the technical problems
Referring to fig. 8, the present invention provides a high capacity button cell, which includes a metal shell 21, a metal cover plate 22, an insulating rubber ring 23 and a battery cell 24.
The metal shell 21 has a cylindrical structure with an opening at one end, as shown in fig. 8, the top of the metal shell 21 is open, and a support 25 is disposed inside the metal shell 21.
The metal cover plate 22 is positioned on the support 25 and closes the opening.
An insulating rubber ring 23 is arranged between the metal shell 21 and the metal cover plate 22 in an isolated manner.
The battery cell 24 is disposed within the metal case 21.
The metal shell 21 is bent inward to form a folded edge near the edge of the opening, the folded edge is clamped on the circumferential side face of the insulating rubber ring 23, and the height of the folded edge protruding out of the outer surface of the metal cover plate 22 is smaller than the thickness of the folded edge, so that the space inside the button cell is larger under the condition that the button cell maintains the same thickness, and the capacity of the cell is conveniently increased.
Further, the periphery of the metal cover plate 22 is provided with a notch (the notch can refer to fig. 3), the insulating rubber ring 23 wraps the periphery of the metal cover plate 22, a clamping block is arranged on the insulating rubber ring 23, and the clamping block is connected with the notch, so that the metal cover plate 22 and the insulating rubber ring 23 are connected and fastened, and the sealing performance is good.
The present embodiment is mainly different from the first embodiment in that the support 25 includes a tube 251, the outer side of the tube 251 is fixedly connected to the metal shell 21, the tube 251 is located at one end of the metal shell 21 close to the opening, a support plate 252 is disposed inside the tube 251, the support plate 252 forms a support for the insulating rubber ring 23, and the tube 251 is wrapped on the outer side of the insulating rubber ring 23, which saves more space and is more beneficial to further increase the battery capacity.
In summary, although the present invention has been described in the above embodiments, the above preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. A large capacity button cell battery, comprising:
the metal shell is of a cylindrical structure with an opening at one end, and a support piece is arranged on the inner side of the metal shell;
the metal cover plate is positioned on the support and closes the opening;
the insulating rubber ring is arranged between the metal shell and the metal cover plate in an isolated mode; and
the battery cell is arranged in the metal shell, and the support piece limits the battery cell;
the metal cover plate is provided with a notch at the periphery, the insulating rubber ring wraps the periphery of the metal cover plate, and a clamping block is arranged on the insulating rubber ring and connected with the notch.
2. The large capacity button cell according to claim 1, wherein a plurality of notches are equally spaced around the perimeter of the metal cover.
3. The large capacity button cell battery according to claim 1, wherein the spacing between adjacent notches is 3-6 times the width of the notches.
4. The large capacity button cell according to claim 1, wherein the metal cover plate comprises a main body plate and a sinking plate surrounding the periphery of the main body plate, the sinking plate is lower than the outer surface of the main body plate, the insulating rubber ring wraps the sinking plate, and the outer surface of the insulating rubber ring is flush with the outer surface of the main body plate.
5. The large capacity button cell battery according to claim 4, wherein the notch is provided on the sinking plate, the notch comprising a lateral opening, the lateral opening being located on the outer side of the sinking plate.
6. The large-capacity button cell battery according to claim 5, wherein the projection is performed by taking the surface of the sinking plate as a projection plane, and the width of the lateral opening is smaller than or equal to the maximum width in the gap.
7. The large-capacity button cell according to claim 6, wherein the projection of the notch is trapezoidal, circular or polygonal in shape, taking the surface of the sinking plate as the projection plane.
8. The large capacity button cell according to claim 4, wherein the notch is a through hole, and the notch is triangular, trapezoidal, circular or polygonal.
9. The button cell battery with large capacity as claimed in claim 1, wherein the edge of the metal shell close to the opening is bent inward to form a folded edge, the folded edge is clamped on the circumferential side surface of the insulating rubber ring, and the folded edge is flush with the outer surface of the metal cover plate.
10. The button cell battery with large capacity according to claim 1, wherein the supporting member is a tubular structure with two ends penetrating through, the supporting member is located in the metal shell, a supporting plate is arranged at one end of the supporting member close to the opening, the supporting plate supports the insulating rubber ring, and glue is filled among the supporting member, the insulating rubber ring and the inner peripheral side surface of the metal shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022607427.1U CN213340530U (en) | 2020-11-11 | 2020-11-11 | High-capacity button cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022607427.1U CN213340530U (en) | 2020-11-11 | 2020-11-11 | High-capacity button cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213340530U true CN213340530U (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022607427.1U Active CN213340530U (en) | 2020-11-11 | 2020-11-11 | High-capacity button cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213340530U (en) |
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2020
- 2020-11-11 CN CN202022607427.1U patent/CN213340530U/en active Active
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