CN211789115U - Laminated cell button cell convenient to install - Google Patents
Laminated cell button cell convenient to install Download PDFInfo
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- CN211789115U CN211789115U CN202020791906.0U CN202020791906U CN211789115U CN 211789115 U CN211789115 U CN 211789115U CN 202020791906 U CN202020791906 U CN 202020791906U CN 211789115 U CN211789115 U CN 211789115U
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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 lamination electricity core button cell convenient to installation, it includes interior metal casing, outer metal casing, lamination electricity core and insulating rubber ring, the first opening of interior metal casing and the second opening butt joint of outer metal casing, be provided with the section of tightening in outer metal casing, the internal diameter that the section of tightening is close to the one end of second opening is greater than the internal diameter that the section of tightening keeps away from second open-ended one end, in the metal casing including the setting of lamination electricity core, the insulating rubber ring is sealed to be set up between outer metal casing and interior metal casing, the one end locking connection of outer metal casing is in the periphery of insulating rubber ring. The utility model discloses a set up the internal diameter in outer metal casing and reduce the section that contracts gradually for insulating rubber ring can be gradual form the interference with outer metal casing and be connected, assembles more easily, and the leakproofness between insulating rubber ring and the outer metal casing is better.
Description
Technical Field
The utility model relates to a battery field, in particular to lamination electricity core button cell convenient to installation.
Background
The button cell is also called a button cell, and refers to a cell with a size similar to a small button, and generally, the button cell has a larger diameter and a thinner thickness, and meanwhile, the button cell is widely applied to various miniature electronic products due to a smaller body shape. Button cells are generally sleeved by an inner metal shell and an outer metal shell, so that a battery cell is sealed inside the inner metal shell and the outer metal shell, but the button cells in the prior art often need to be in interference connection with the inner metal shell and the outer metal shell, meanwhile, the sizes of the interference-connected parts on the inner metal shell or the outer metal shell are consistent, and the interference connection process is difficult.
It is desirable to provide a laminated cell button cell that is easy to install to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a lamination electricity core button cell convenient to installation, it is through setting up the internal diameter in outer metal casing and reducing the section that contracts gradually for insulating rubber ring can be gradual forms the interference with outer metal casing and is connected, with the comparatively difficult problem of process that the interior metal casing of solving among the prior art battery and outer metal casing interference are connected.
In order to solve the technical problem, the utility model adopts the technical scheme that: a laminated cell button battery for ease of installation comprising:
the inner metal shell is of a cylindrical structure with a first opening at one end;
the outer metal shell is of a cylindrical structure with a second opening at one end, the first opening is in butt joint with the second opening, a tightening section is arranged at one end, far away from the second opening, in the outer metal shell, and the inner diameter of one end, close to the second opening, of the tightening section is larger than that of one end, far away from the second opening, of the tightening section;
the laminated cell is arranged in the inner metal shell in a laminated mode, the laminated cell is connected with the inner metal shell through a negative electrode lug, and the laminated cell is connected with the outer metal shell through a positive electrode lug; and
and the insulating rubber ring is arranged between the outer metal shell and the inner metal shell in a sealing manner, and one end of the outer metal shell is connected to the periphery of the insulating rubber ring in a locking manner, so that a seal is formed between the edge of the outer metal shell and the insulating rubber ring.
The utility model discloses in, be close to in the outer metal casing second open-ended one end is provided with cylindrical hole section, it is conical hole section to reduce the section, reduce the great one end of section internal diameter with cylindrical hole section butt joint, be provided with conical shaft section on the insulating rubber ring, conical shaft section with it connects to reduce section sealing.
In the utility model discloses in, it is between 0.15 ~ 0.7 to tighten the height ratio of section and the height of outer metal casing, it is between 170 ~ 179 to tighten the contained angle between the internal face of section and the internal face of outer metal casing.
The utility model discloses in, the insulating rubber ring cladding is in on the inside and outside surface of the axial curb plate of interior metal casing.
The utility model discloses in, be provided with the disappointing mouth of rubber ring on the insulating rubber ring, work as outer metal casing with the insulating rubber ring separates to when setting for the degree, the disappointing mouth intercommunication of rubber ring the inner space and the exterior space of outer metal casing.
In the utility model, the laminated cell button cell battery further comprises a shell explosion-proof cover plate, a shell accommodating groove and a shell through hole are arranged on the end surface outside the outer metal shell, and the shell through hole is communicated with the shell accommodating groove and the inner cavity of the outer metal shell;
the one end of anodal utmost point ear is passed shell through-hole and welding are in the surface of outer metal casing, anodal utmost point ear is located in the shell holding tank, the explosion-proof apron of shell passes through hot melt material and connects in the shell holding tank, the explosion-proof apron of shell seals the shell through-hole.
In the utility model, the laminated cell button cell further comprises an inner shell explosion-proof cover plate, an inner shell accommodating groove and an inner shell through hole are arranged on the end surface outside the inner metal shell, and the inner shell through hole is communicated with the inner shell accommodating groove and the inner cavity of the inner metal shell;
one end of the negative pole lug penetrates through the through hole of the inner shell and is welded on the outer surface of the inner metal shell, the negative pole lug is located in the inner shell accommodating groove, the inner shell anti-explosion cover plate is connected in the inner shell accommodating groove through a hot melting material, and the inner shell anti-explosion cover plate is sealed in the inner shell through hole.
In the utility model, the laminated cell button cell battery further comprises an outer shell explosion-proof cover plate and an inner shell explosion-proof cover plate, wherein an outer shell through hole is formed in the outer metal shell and is communicated with the inner cavity and the outer space of the outer metal shell, an inner shell through hole is formed in the inner metal shell and is communicated with the inner cavity and the outer space of the inner metal shell;
one end of the positive electrode lug is welded on the inner surface of the outer metal shell, the shell explosion-proof cover plate is connected to the outer surface of the outer metal shell through a hot melting material, and the shell explosion-proof cover plate seals the shell through hole;
one end of the negative electrode lug is welded on the inner surface of the inner metal shell, the inner shell explosion-proof cover plate is connected on the outer surface of the inner metal shell through hot melt materials, and the inner shell explosion-proof cover plate seals the inner shell through hole.
In the utility model, one end of the outer side surface of the inner metal shell is provided with an inner shell clamping part, the inner shell clamping part comprises an inner first convex part and an outer first concave part, and the inner insulating rubber ring is coated in a non-first convex part area at the inner side of the inner metal shell;
the insulating rubber ring is provided with a rubber ring clamping portion, the rubber ring clamping portion comprises an inner second convex portion and an outer second concave portion, the second convex portion is clamped in the first concave portion, and the edge of the outer metal shell is clamped in the second concave portion.
The utility model discloses in, laminated electricity core button cell's height-diameter ratio is between 0.4 ~ 1.
The utility model discloses compare in prior art, its beneficial effect is: the utility model discloses a set up the internal diameter in outer metal casing and reduce the section that contracts gradually for insulating rubber ring can be gradual form the interference with outer metal casing and be connected, assembles more easily, and the leakproofness between insulating rubber ring and the outer metal casing is better.
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 structural view of a first embodiment of the laminated cell button battery convenient to mount according to the present invention.
Fig. 2 is a schematic structural view of the laminated cell button battery of the first embodiment, which is convenient to install and provided with an annular protruding strip.
Fig. 3 is a schematic structural diagram of a second embodiment of the laminated cell button battery convenient to mount according to the present invention.
Fig. 4 is an enlarged view of a portion of the structure at X in fig. 3.
Fig. 5 is a schematic structural view of a positive electrode tab extending through the outer metal shell and welded to the outer surface.
Fig. 6 is a schematic structural view of a negative electrode tab welded to the inner surface of the inner metal case.
Fig. 7 is a schematic structural view of the positive electrode tab welded to the inner surface of the outer metal shell.
The reference numbers are named as follows:
an outer metal shell 11; an annular rib 111; an inner metal shell 12; an insulating rubber ring 13; a rubber ring air escape 131; a negative electrode tab 141; a positive electrode tab 142; a separator film 143; a negative electrode tab 15; a positive electrode tab 16; the length L is compacted.
An outer metal shell 21; a housing receiving groove 211; a housing through-hole 212; an inner metal shell 22; an inner shell engaging portion 221; the inner shell receiving groove 222; an inner shell through hole 223; an insulating rubber ring 23; a rubber ring engaging portion 231; a negative electrode plate 241; a positive electrode piece 242; the separator 243; a negative electrode tab 25; a positive electrode tab 26; an inner shell explosion-proof cover plate 27; a hot melt material 28; a housing explosion-proof cover plate 29; a hot-melt material 2A; the length L is compacted.
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.
The button cell in the prior art often needs to carry out interference connection between an inner metal shell and an outer metal shell, and meanwhile, the sizes of the interference connection parts on the inner metal shell or the outer metal shell are consistent, so that the interference connection process is difficult.
Following do the utility model provides a pair of can solve the lamination electricity core button cell's of the installation of being convenient for first embodiment of above technical problem.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a laminated cell button battery convenient to mount according to a first embodiment of the present invention.
In the drawings, elements having similar structures are denoted by the same reference numerals.
The utility model provides a lamination electricity core button cell convenient to installation, it includes interior metal casing 12, outer metal casing 11, lamination electricity core and insulating rubber ring 13.
The inner metal shell 12 is a cylindrical structure having a first opening at one end, and the first opening of the inner metal shell 12 is downward as shown in fig. 1.
The laminated cell is stacked in the inner metal shell 12, and the laminated cell includes a negative electrode tab 15, a positive electrode tab 16, a negative electrode tab 141, a positive electrode tab 142, and a separator 143.
The isolating film 143 is sandwiched between the negative pole piece 141 and the positive pole piece 142, the multiple layers of negative pole pieces 141, the multiple layers of positive pole pieces 142 and the multiple layers of isolating films 143 are arranged in a laminated manner, the negative pole tab 15 is connected with the negative pole piece 141 and the inner metal shell 12, and the positive pole tab 16 is connected with the positive pole piece 142 and the outer metal shell 11.
The insulating rubber ring 13 is arranged between the outer metal shell 11 and the inner metal shell 12 in a sealing mode, so that sealing and insulation are formed between the outer metal shell 11 and the inner metal shell 12, one end of the outer metal shell 11 is connected to the periphery of the insulating rubber ring 13 in a locking mode, and a seal is formed between the edge of the outer metal shell 11 and the insulating rubber ring 13.
Insulating rubber ring 13 and outer metal casing 11 assemble earlier stage, have the clearance between the inner wall of insulating rubber ring 13 and outer metal casing 11, insulating rubber ring 13 and outer metal casing 11's installation is comparatively convenient, easy, and when insulating rubber ring 13 gradually with tighten section L and be connected, insulating rubber ring 13 is gradual and outer metal casing 11 forms the interference and is connected, afterwards, pressurize the second open-ended border of outer metal casing 11 again and make its deformation, thereby make the border locking connection of outer metal casing in the periphery of insulating rubber ring 13.
In this embodiment, the negative electrode tab 15 and the positive electrode tab 16 are both L-shaped structures, the multi-layer negative electrode tab 141, the multi-layer positive electrode tab 142 and the multi-layer isolating film 143 are stacked to form a stacked structure, a first end of the negative electrode tab 15 is located on one radial side of the stacked structure and connected to the multi-layer negative electrode tab 141, a second end of the negative electrode tab 15 is connected to the inner metal shell 12, a first end of the positive electrode tab 16 is located on one radial side of the stacked structure and connected to the multi-layer positive electrode tab 142, and a second end of the positive electrode tab 16 is connected to the outer metal shell 11.
The utility model discloses in, be close to second open-ended one end in the outer metal casing 11 and be provided with cylindrical hole section, reduce section L and be conical hole section, reduce the great one end of section L internal diameter and the butt joint of cylindrical hole section, be provided with conical shaft section on the insulating rubber ring 13, conical shaft section is connected with reducing section L interference.
In the utility model, the ratio of the height of the tightening section L to the height of the outer metal shell 11 is between 0.15 and 0.7, and the included angle between the inner wall surface of the tightening section L and the inner wall surface of the outer metal shell 11 is between 170 and 179 degrees.
Preferably, the insulating rubber ring 13 in this embodiment is wrapped on the inner and outer surfaces of the axial side plate of the inner metal shell 12, the insulating rubber ring 13 and the inner metal shell 12 are connected to form a more stable integral structure, which is convenient for assembly, and the integral structure and the outer metal shell 11 have good assembly and connection effects.
Referring to fig. 2, fig. 2 is a schematic structural view of the laminated cell button battery of the first embodiment, where an annular protruding strip is added to facilitate installation.
Preferably, an annular convex strip 111 is provided on the inner wall of the outer metal shell 11, the annular convex strip 111 is in interference connection with the insulating rubber ring 13, and the annular convex strip 111 is formed by punching the outer side of the outer metal shell 11.
The annular rib 111 can enhance the connection between the outer metal shell 11 and the inner metal shell 12, and the annular rib 111 is formed by punching after the outer metal shell 11 and the inner metal shell 12 are assembled, so that the assembling operation of the outer metal shell 11 and the inner metal shell 12 is not affected.
In this embodiment, the rubber gasket relief opening 131 is provided on the insulating rubber gasket 13. When the battery generates heat, high-pressure gas is generated inside the battery, and the high-pressure gas can separate the outer metal shell 11 from the insulating rubber ring 13. When outer metal casing 11 and insulating rubber ring 13 separate to the settlement degree, insulating rubber ring 13 no longer with outer metal casing 11 sealing connection for rubber ring air escape port 131 can communicate the inner space and the exterior space of outer metal casing 11, thereby can prevent through the release of rubber ring air escape port 131 that high-pressure gas from catching fire or exploding.
Wherein, the insulating rubber ring 13 is made of heat-sensitive resin material, such as PE, when the temperature of the battery rises to a certain range, the insulating rubber ring 13 will shrink, and a gap space will be formed between the insulating rubber ring 13 and the outer metal shell 11, so that high-pressure gas can be released through the gap space to prevent the battery from catching fire or exploding.
The height-diameter ratio of the laminated cell button cell in the embodiment is between 0.4 and 1.
The lamination electricity core button cell convenient to installation of this embodiment is through setting up the section that contracts that the internal diameter reduces gradually in outer metal casing 11, in the earlier stage that insulating rubber ring 13 cup jointed with outer metal casing 11, has the clearance between the inner wall of insulating rubber ring 13 and outer metal casing 11, and the installation is comparatively convenient, easy.
And when the insulating rubber ring 13 is gradually connected with the tightening section L, the insulating rubber ring 13 gradually forms interference connection with the outer metal shell 11, then the edge of the outer metal shell 11 is pressurized to deform the outer metal shell, and after the deformation is generated, the edge of the outer metal shell 11 is locked and connected to the periphery of the insulating rubber ring 13, so that a seal is formed between the edge of the outer metal shell 11 and the insulating rubber ring 13.
Following do the utility model provides a pair of can solve the lamination electricity core button cell's of the installation of being convenient for second embodiment of above technical problem.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a laminated cell button battery convenient to mount according to a second embodiment of the present invention.
In the drawings, elements having similar structures are denoted by the same reference numerals.
The utility model provides a lamination electricity core button cell convenient to installation, it includes interior metal casing 22, outer metal casing 21, lamination electricity core and insulating rubber ring 23.
The inner metal shell 22 has a cylindrical structure with a first opening at one end.
The laminated cell is arranged in the inner metal shell 22, and comprises a negative pole tab 25, a positive pole tab 26, a negative pole piece 241, a positive pole piece 242 and an isolating film 243, wherein the isolating film 243 is sandwiched between the negative pole piece 241 and the positive pole piece 242, the multilayer negative pole piece 241, the multilayer positive pole piece 242 and the multilayer isolating film 243 are arranged in a laminated manner, the negative pole tab 25 is connected with the negative pole piece 241 and the inner metal shell 22, and the positive pole tab 26 is connected with the positive pole piece 242 and the outer metal shell 21.
Insulating rubber ring 23 seals up and sets up between outer metal casing 21 and inner metal casing 22 for form between outer metal casing 21 and the inner metal casing 22 sealed and insulating, the border lock connection of outer metal casing 21 is in insulating rubber ring 23's periphery, makes and seals between outer metal casing 21's border and the insulating rubber ring 23, insulating rubber ring 23 can be progressively forms the interference with outer metal casing 21 and be connected, and it is comparatively convenient to install.
The insulating rubber 23 in this embodiment is coated on the inner and outer surfaces of the axial side plate of the inner metal shell 22.
Referring to fig. 3 and 4, fig. 4 is an enlarged view of a portion of the structure at X in fig. 3.
The utility model discloses in, lamination electricity core button cell still includes the explosion-proof apron 27 of inner shell, is provided with inner shell holding tank 222 and inner shell through-hole 223 on the outside terminal surface of interior metal casing 22, and inner shell through-hole 223 communicates the inner chamber of inner shell holding tank 222 and interior metal casing 22.
One end of the negative electrode tab 25 passes through the inner case through-hole 223 and is welded to the outer surface of the inner metal case 22, and the welding operation is more convenient. The inner shell explosion-proof cover plate 27 is positioned in the inner shell receiving groove 222, and the inner shell explosion-proof cover plate 27 closes the inner shell through hole 223.
The explosion-proof cover plate 27 of the inner shell in this embodiment can be made of an insulating plate or a metal plate.
Preferably, inner shell explosion proof cover 27 is attached within inner shell receiving slot 222 by hot melt material 28.
Among them, the hot melt material 28 is preferably a hot melt adhesive.
Or referring to fig. 6, one end of the negative electrode tab 25 can be welded to the inner surface of the inner metal shell 22, the inner shell explosion-proof cover plate 27 is connected to the inner shell receiving groove 222 through the hot-melt material 28, and the inner shell explosion-proof cover plate 27 closes the inner shell through hole 223.
The inner shell explosion-proof cover plate 27 is connected with the inner metal shell 22 through the hot melting material 28, when the battery generates heat, high-pressure gas can be generated in the battery, the temperature of the battery rises to the melting temperature range of the hot melting material 28, the hot melting material 28 loses the bonding capability, the inner shell explosion-proof cover plate 27 is disconnected with the inner metal shell 22, a release channel is formed between the inner shell explosion-proof cover plate 27 and the inner metal shell 22, and the high-pressure gas can be released through the release channel to prevent the battery from catching fire or exploding.
Wherein, need notice negative pole utmost point ear 25 and inner shell through-hole 223 dislocation set, avoid negative pole utmost point ear 25 to block inner shell through-hole 223, in addition, can set up inner shell holding tank 222 on the outside terminal surface of inner metal casing 22, the explosion-proof apron 27 of inner shell can set up in inner shell holding tank 222.
Referring to fig. 5, fig. 5 is a schematic structural view illustrating a positive tab extending through an outer metal shell and welded to an outer surface of the outer metal shell.
The utility model discloses in, lamination electricity core button cell still includes shell explosion-proof cover plate 29, is provided with shell holding tank 211 and shell through-hole 212 on the outside terminal surface of outer metal casing 21, and shell through-hole 212 communicates shell holding tank 211 and the inner chamber of outer metal casing 21.
One end of the positive pole tab 26 penetrates through the housing through hole 212 and is welded on the outer surface of the outer metal shell 21, the positive pole tab 26 is positioned in the housing accommodating groove 211, and the housing explosion-proof cover plate 29 closes the housing accommodating groove 211.
Preferably, the housing explosion-proof cover 29 is attached within the housing receiving groove 211 by the hot melt material 2A.
Among them, the hot melt material 2A is preferably a hot melt adhesive.
Or referring to fig. 7, one end of the positive electrode tab 26 may also be welded to the inner surface of the outer metal shell 21, the housing explosion-proof cover plate 29 is connected to the housing receiving groove 211 through the hot-melt material 2A, and the housing explosion-proof cover plate 29 closes the housing through hole 212.
The explosion-proof cover plate 29 of the outer shell is connected with the outer metal shell 21 through the hot melting material 2A, when the battery generates heat, high-pressure gas can be generated in the battery, the temperature of the battery rises to the melting temperature range of the hot melting material 2A, the hot melting material 2A loses the bonding capability, the explosion-proof cover plate 29 of the outer shell is disconnected with the outer metal shell 21, a release channel is formed between the explosion-proof cover plate 29 of the outer shell and the outer metal shell 21, and the high-pressure gas can be released through the release channel to prevent the battery from catching fire or exploding.
Wherein, need pay attention to positive pole utmost point ear 26 and shell through-hole 212 dislocation set, avoid positive pole utmost point ear 26 to keep off shell through-hole 212, in addition, can set up shell holding groove 211 on the outside terminal surface of outer metal casing 21, the explosion-proof apron 29 of shell can set up in shell holding groove 211.
Referring to fig. 3, in the present embodiment, an inner shell fastening portion 221 is disposed at an end of the outer side of the inner metal shell 22 away from the first opening, the inner shell fastening portion 221 includes a first convex portion at the inner side and a first concave portion at the outer side, and the inner insulating rubber ring 23 and the non-first convex portion region coated at the inner side of the inner metal shell 22 are as shown in fig. 3, that is, the inner insulating rubber ring 23 inside the inner metal shell 22 extends from bottom to top to contact with the first convex portion and does not extend any more, which saves space.
Be provided with rubber ring joint portion 231 on the insulating rubber ring 23, rubber ring joint portion 231 includes the second convex part of inboard and the second concave part in the outside, and the joint of second convex part is in first concave part, and the border of outer metal casing 21 can be in the second concave part through extruded mode joint.
In this embodiment, by setting the inner housing receiving groove 222, the inner housing through hole 223 and the inner housing explosion-proof cover plate 27 on the inner metal housing 22, or setting the outer housing receiving groove 211, the outer housing through hole 212 and the outer housing explosion-proof cover plate 29 on the outer metal housing 21, the battery can obtain explosion-proof effect without setting the explosion-proof structure of the separation of the outer metal housing 21 and the insulating rubber ring 23, so the inner housing clamping portion 221 and the rubber ring clamping portion 231 can be set by the battery, and the outer metal housing 21 and the insulating rubber ring 23 can be connected very stably.
In this embodiment, through set up the internal diameter in the outer metal casing and reduce the shrink section gradually for the insulating rubber ring can be progressively with outer metal casing formation interference fit connection, assemble more easily between insulating rubber ring and the outer metal casing, the leakproofness between insulating rubber ring and the outer metal casing is better.
In summary, although the present invention has been disclosed in two embodiments, the above 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, so that the scope of the present invention shall be determined by the scope of the appended claims.
Claims (10)
1. The utility model provides a lamination electricity core button cell convenient to installation which characterized in that includes:
the inner metal shell is of a cylindrical structure with a first opening at one end;
the outer metal shell is of a cylindrical structure with a second opening at one end, the first opening is in butt joint with the second opening, the inner metal shell is sleeved in the outer metal shell, a tightening section is arranged at one end, far away from the second opening, in the outer metal shell, and the inner diameter of one end, close to the second opening, of the tightening section is larger than that of one end, far away from the second opening, of the tightening section;
the laminated cell is arranged in the inner metal shell in a laminated mode, the laminated cell is connected with the inner metal shell through a negative electrode lug, and the laminated cell is connected with the outer metal shell through a positive electrode lug; and
and the insulating rubber ring is arranged between the outer metal shell and the inner metal shell in a sealing manner, and one end of the outer metal shell is connected to the periphery of the insulating rubber ring in a locking manner, so that a seal is formed between the edge of the outer metal shell and the insulating rubber ring.
2. The easy-to-install laminated cell button cell battery according to claim 1, wherein a cylindrical hole section is provided at an end of the outer metal casing close to the second opening, the contracting section is a conical hole section, the end of the contracting section with a larger inner diameter is butted with the cylindrical hole section, a conical shaft section is provided on the insulating rubber ring, and the conical shaft section is hermetically connected with the contracting section.
3. The laminated cell button battery convenient to install according to claim 1, wherein the ratio of the height of the tightening section to the height of the outer metal shell is between 0.15 and 0.7, and the included angle between the inner wall surface of the tightening section and the inner wall surface of the outer metal shell is between 170 and 179 degrees.
4. The laminated cell button cell easy to install as claimed in claim 1, wherein the insulating rubber ring is wrapped over the inner and outer surfaces of the axial side plates of the inner metal casing.
5. The laminated cell button cell convenient for installation according to claim 1, wherein a rubber ring air release port is provided on the insulating rubber ring, and when the outer metal casing and the insulating rubber ring are separated to a set degree, the rubber ring air release port communicates with an inner space and an outer space of the outer metal casing.
6. The laminated cell button cell convenient to install as recited in claim 1, further comprising a housing explosion-proof cover plate, wherein a housing receiving groove and a housing through hole are formed in an end surface of the outer metal shell, and the housing through hole communicates the housing receiving groove with an inner cavity of the outer metal shell;
the one end of anodal utmost point ear is passed shell through-hole and welding are in the surface of outer metal casing, anodal utmost point ear is located in the shell holding tank, the explosion-proof apron of shell passes through hot melt material and connects in the shell holding tank, the explosion-proof apron of shell seals the shell through-hole.
7. The laminated cell button cell convenient to install as claimed in claim 1, further comprising an inner casing explosion-proof cover plate, wherein an inner casing accommodating groove and an inner casing through hole are formed in an end surface of the outer portion of the inner metal casing, and the inner casing through hole communicates the inner casing accommodating groove with an inner cavity of the inner metal casing;
one end of the negative pole lug penetrates through the through hole of the inner shell and is welded on the outer surface of the inner metal shell, the negative pole lug is located in the inner shell accommodating groove, the inner shell anti-explosion cover plate is connected in the inner shell accommodating groove through a hot melting material, and the inner shell anti-explosion cover plate is sealed in the inner shell through hole.
8. The laminated cell button cell convenient to install as recited in claim 1, further comprising an outer shell explosion-proof cover plate and an inner shell explosion-proof cover plate, wherein an outer shell through hole is formed in the outer metal shell and communicates with an inner cavity and an outer space of the outer metal shell, and an inner shell through hole is formed in the inner metal shell and communicates with an inner cavity and an outer space of the inner metal shell;
one end of the positive electrode lug is welded on the inner surface of the outer metal shell, the shell explosion-proof cover plate is connected to the outer surface of the outer metal shell through a hot melting material, and the shell explosion-proof cover plate seals the shell through hole;
one end of the negative electrode lug is welded on the inner surface of the inner metal shell, the inner shell explosion-proof cover plate is connected on the outer surface of the inner metal shell through hot melt materials, and the inner shell explosion-proof cover plate seals the inner shell through hole.
9. The easy-to-install laminated cell button cell battery according to claim 1, wherein an inner casing snap-fit portion is provided at one end of the outer side surface of the inner metal casing, the inner casing snap-fit portion comprises an inner first convex portion and an outer first concave portion, and the inner insulating rubber ring is wrapped in a non-first convex portion area of the inner side of the inner metal casing;
the insulating rubber ring is provided with a rubber ring clamping portion, the rubber ring clamping portion comprises an inner second convex portion and an outer second concave portion, the second convex portion is clamped in the first concave portion, and the edge of the outer metal shell is clamped in the second concave portion.
10. The laminated cell button for easy installation according to claim 1, wherein the laminated cell button has a height to diameter ratio of between 0.4 and 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020791906.0U CN211789115U (en) | 2020-05-12 | 2020-05-12 | Laminated cell button cell convenient to install |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020791906.0U CN211789115U (en) | 2020-05-12 | 2020-05-12 | Laminated cell button cell convenient to install |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211789115U true CN211789115U (en) | 2020-10-27 |
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ID=72957660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020791906.0U Active CN211789115U (en) | 2020-05-12 | 2020-05-12 | Laminated cell button cell convenient to install |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211789115U (en) |
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2020
- 2020-05-12 CN CN202020791906.0U patent/CN211789115U/en active Active
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