CN218215491U - Button cell convenient for positioning and assembling - Google Patents

Abstract

The utility model provides a make things convenient for button cell of location equipment, it includes shell, electric core and lid. The shell is of a cylindrical structure, and one axial end of the shell is an opening end. The battery cell is arranged in the shell. The open end is located to the lid, and the lid includes cover plate and joint ring, and the cover plate is located open end department, and the joint ring is the tubulose, and the periphery and the cover plate fixed connection of cover plate are followed to its ascending one end, and joint ring cover is established outside the open end, and the internal surface of joint ring and the surface laminating of shell, joint ring at the surface welding of its ascending other end of axial and shell, the lower surface butt of open end and cover plate. The utility model discloses a button cell of location equipment when lid and shell assemble, carries out axial positioning and radial positioning to lid and shell, can also prevent effectively that the solder from splashing to the shell in. The utility model discloses a button cell of location equipment, location convenience, accuracy, yield height during its equipment can effective proof quality.

Description

Button cell convenient for positioning and assembling

Technical Field

The utility model relates to a button cell technical field, in particular to button cell of convenient location equipment.

Background

Button cells are widely used in various aspects of life, especially in related products and fields such as computer mainboards, watches, calculators, bluetooth headsets, toy interphones and the like.

Button cell among the prior art, the apron is a smooth five metals panel, and the unable accurate equipment of apron during with the shell assembly can produce relative eccentric displacement, dislocation or apron warpage etc. and the messenger has empty welding phenomenon when the welding, and can lead to the welding slag to splash and put inside the shell, finally leads to finished product size deviation and weeping. Therefore, the button cell in the prior art has the disadvantages of complicated assembly process, low efficiency, high reject ratio and capacity which cannot meet the market and customer requirements.

Therefore, it is necessary to provide a button cell with convenient positioning and assembly to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a make things convenient for button cell of location equipment, location is convenient during its equipment, accurate, the yield is high, can effectively guarantee the quality.

The technical scheme of the utility model is that:

a button cell battery that facilitates positioning assembly, comprising:

the shell is of a cylindrical structure, and one axial end of the shell is an opening end;

a cell disposed in the housing; and the number of the first and second groups,

the lid, its lid is located the open end, the lid includes cover plate and joint ring, the cover plate is located open end department, the joint ring is the tubulose, and its ascending one end of axial is followed the periphery of cover plate with cover plate fixed connection, joint ring cover is established outside the open end, just the internal surface of joint ring with the surface laminating of shell, the joint ring in its ascending other end of axial with the surface welding of shell, the open end with the lower surface butt of cover plate.

Make things convenient for location equipment button cell in, the joint ring with the shell interference is connected.

In the button cell convenient for positioning and assembling, the height of the clamping ring is 1/5-1/4 of the height of the shell in the axial direction of the shell.

Make things convenient for button cell of location equipment in, the cover plate with the joint ring forms for the integrative punching press of five metals panel.

Make things convenient for positioning assembly's button cell in, the shell is straight tube-shape, the joint ring is straight tubulose.

In the button cell convenient for positioning and assembling, the cover plate comprises an outer plate, a connecting plate and an inner plate, the outer plate, the connecting plate and the inner plate are all annular and are sequentially connected from outside to inside to form a step shape, the outer plate is connected with the clamping ring, and the inner plate is close to the electric core relative to the outer plate; the button cell battery further comprises:

a first hardware located within the ring of the outer sheet; and (c) a second step of,

a first seal ring, located within the ring of the outer piece, is sandwiched between the first five pieces of hardware and the cover piece.

In the button cell convenient for positioning and assembling of the utility model, the first sealing ring comprises a first outer ring and a first inner ring, and the upper surface of the first outer ring protrudes out of the upper surface of the first inner ring; the first outer ring is clamped between the outer peripheral surface of the first five-piece metal and the connecting piece, and the first inner ring is clamped between the first piece metal and the inner piece.

In the button cell convenient for positioning and assembling, the first five metal pieces comprise a first main body piece and a first boss, the first boss protrudes out of the inner surface of the first main body piece, the projection of the first boss on the first main body piece is positioned in the first main body piece in the axial direction of the shell, and the inner peripheral edge of the first inner ring is abutted against the outer peripheral surface of the first boss; the first boss and the inner piece are arranged at intervals, and the first main body piece, the first outer ring and the outer piece are flush in outer surface.

Make things convenient for location equipment among the button cell, the cover plate is the flat structure of annular, button cell still includes:

a second hardware located at the open end, the second hardware being connected with the cell; and (c) a second step of,

and the second sealing ring is clamped between the second hardware and the cover piece, so that the cover piece and the second hardware are arranged in an isolated manner.

In the button cell convenient for positioning and assembling, the second hardware comprises a second main body piece and a second boss, the second boss protrudes out of the lower surface of the second main body piece, and the projection of the second boss on the second main body piece is positioned in the second main body piece in the axial direction of the shell;

the second sealing ring comprises a second outer ring and a second inner ring which are annular, the second outer ring is clamped between the lower surface of the second main body piece and the upper surface of the cover plate, the second inner ring is fixedly connected with the second outer ring along the inner peripheral edge of the second outer ring, the lower surface of the second inner ring protrudes out of the lower surface of the second outer ring, and the second inner ring is clamped between the side surface of the second boss and the inner side of the cover plate; the inner surfaces of the second boss, the second inner ring and the cover plate are flush.

The utility model discloses compare in prior art, its beneficial effect is: the utility model discloses a button cell when lid and shell are assembled, establishes the joint ring cover outside the open end, through the lower surface butt of open end with the cover plate, carries out axial positioning to lid and shell, and the internal surface through the joint ring carries out radial positioning with the surface laminating of shell to lid and shell, can also prevent effectively that the solder from splashing to the shell in to through the outer surface welding of the joint ring at its axial other end and shell, carry out fixed connection with lid and shell. The clamping ring can improve the structural strength of the cover plate, so that the cover plate is not easy to bend and deform, and the positioning and assembly between the cover body and the shell are facilitated. The utility model discloses a button cell, location convenience, accuracy, yield height during its equipment can effective proof quality.

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 longitudinal cross-sectional structure diagram of a button cell provided in a first preferred embodiment of the present invention.

Fig. 2 is another schematic longitudinal cross-sectional structure diagram of a button cell provided in a first preferred embodiment of the present invention.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a schematic longitudinal cross-sectional structure diagram of a button cell provided in a second preferred embodiment of the present invention.

Wherein the reference numbers of fig. 1, 2 and 3 are as follows:

11. the outer shell, 111, the open end,

12. the battery core is provided with a battery core,

13. a cover body, a plurality of first fixing holes,

131. a cover plate is arranged on the top of the base plate,

1311. an outer sheet 1312, a connecting sheet 1313, an inner sheet,

132. a clamping ring is arranged on the top of the shell,

14. the first metal piece is a fifth metal piece,

141. a first body piece, 142, a first boss,

15. a first sealing ring is arranged on the first side of the shell,

151. a first outer race, 152, a first inner race.

The reference numbers of fig. 4 are as follows:

21. the outer shell, 211, the open end,

22. the battery core is provided with a battery core,

23. a cover body which is provided with a plurality of grooves,

231. a cover plate is arranged on the top of the base plate,

232. a clamping ring is arranged on the top of the shell,

24. the second piece of hardware is comprised of a second piece of hardware,

241. a second body piece 242, a second boss,

25. a second sealing ring is arranged on the first sealing ring,

251. a second outer race, 252, a second inner race.

In the drawings, elements having similar structures are denoted by the same reference numerals.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 those skilled in the art without creative efforts all 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 explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; 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 of ordinary skill in the art.

Button cell among the prior art, the apron is a smooth five metals panel, and unable accurate equipment can produce relative eccentric displacement, dislocation or apron warpage etc. condition when apron and shell assembly, makes it have the empty welding phenomenon when the welding, and can lead to the welding slag to splash and put inside the shell, finally leads to finished product size deviation and weeping. Therefore, the button cell in the prior art has the disadvantages of complicated assembly process, low efficiency, high reject ratio and capacity which cannot meet the market and customer requirements.

The present invention provides a button cell with convenient positioning and assembling, which can solve the above technical problems.

Referring to fig. 1, fig. 2 and fig. 3, a first preferred embodiment of the present invention provides a button cell convenient for positioning and assembling, which includes a housing 11, a battery cell 12 and a cover 13. The housing 11 has a cylindrical structure, and one end of the housing 11 in the axial direction is an open end 111. The battery cell 12 is disposed in the housing 11. The lid 13 covers and locates open end 111, lid 13 includes cover sheet 131 and joint ring 132, cover sheet 131 is located open end 111 department, joint ring 132 is the tubulose, the periphery and cover sheet 131 fixed connection of cover sheet 131 are followed to its ascending one end of axial, joint ring 132 cover is established outside open end 111, and joint ring 132's internal surface and shell 11's surface laminating, joint ring 132 is at the surface welding of its ascending other end of axial and shell 11, open end 111 and cover sheet 131's lower surface butt. The battery cell 12 may be wound or chip-type according to the requirement.

The utility model discloses a button cell of first preferred embodiment, when lid 13 assembles with shell 11, establish joint ring 132 cover outside open end 111, through the lower surface butt of open end 111 with cover plate 131, carry out axial positioning to lid 13 and shell 11, the internal surface through joint ring 132 and the surface laminating of shell 11, carry out radial positioning to lid 13 and shell 11, can also prevent effectively that the solder from splashing in shell 11, and through joint ring 132 at its axial other end and shell 11's outer surface welding, carry out fixed connection with lid 13 and shell 11. The clamping ring 132 can improve the structural strength of the cover 131, so that the cover is not easy to bend or deform, and the positioning and assembly between the cover 13 and the housing 11 are facilitated.

The utility model discloses a button cell of first preferred embodiment, location is convenient during its equipment, accurate, the yield is high, can effectively guarantee quality.

With continued reference to fig. 1, the snap ring 132 is in interference fit with the housing 11. By adopting the structure, the cover body 13 and the shell 11 are more stable after being assembled, and the subsequent welding is convenient.

With continued reference to FIG. 1, the height of the snap ring 132 is 1/5-1/4 of the height of the housing 11 in the axial direction of the housing 11. If the height of the snap ring 132 is too long relative to the housing 11, it is inconvenient to fit the snap ring 132 on the outside of the housing 11, and if the height of the snap ring 132 is too short relative to the housing 11, the snap ring 132 is not stable after being fitted on the outside of the housing 11, which is inconvenient for subsequent welding. By adopting the structure, the clamping ring 132 is conveniently sleeved outside the shell 11, and the clamping ring 132 is stably sleeved outside the shell 11.

With continued reference to fig. 1, the cover 131 and the snap ring 132 are integrally formed by stamping. By adopting the structure, the cover body 13 is convenient to process, and the production process is simplified.

Referring to fig. 1, the housing 11 is a straight cylinder, and the locking ring 132 is a straight tube. The straight cylindrical shell 11 has a simple structure and is convenient to machine and form; the straight tubular clamping ring 132 is adopted, so that the clamping ring 132 can be conveniently matched with the straight tubular shell 11 correspondingly, and the clamping ring 132 can be conveniently sleeved outside the shell 11.

Please refer to fig. 3, which is also referred to fig. 1 and fig. 2. The cover plate 131 includes an outer plate 1311, a connecting plate 1312, and an inner plate 1313, the outer plate 1311, the connecting plate 1312, and the inner plate 1313 are all ring-shaped and are sequentially connected from outside to inside to form a step shape, the outer plate 1311 is connected to the clamping ring 132, and the inner plate 1313 is close to the cell 12 relative to the outer plate 1311. The button cell also comprises a first fitting 14 and a first sealing ring 15. The first hardware 14 is located within the ring of the outer plate 1311. The first sealing ring 15 is located within the ring of the outer plate 1311 and is clamped between the first fitting 14 and the cover plate 131. In this structure, by arranging the cover plate 131 in a step shape, the first fifth metal 14 and the first seal ring 15 are positioned and arranged in the ring of the outer plate 1311, so that the first fifth metal 14, the first seal ring 15 and the cover 13 are assembled together, and the assembly efficiency is higher and more accurate.

Please continue to refer to fig. 3, while please refer to fig. 1 and fig. 2. The first seal ring 15 includes a first outer ring 151 and a first inner ring 152, and an upper surface of the first outer ring 151 protrudes from an upper surface of the first inner ring 152. The first outer ring 151 is sandwiched between the outer peripheral surface of the first hardware 14 and the coupling piece 1312, and the first inner ring 152 is sandwiched between the first hardware 14 and the inner piece 1313. With this structure, the contact area between the first fifth metal 14 and the first seal ring 15 and the contact area between the first seal ring 15 and the cover 131 can be increased, and the sealing effect can be further improved.

Please continue to refer to fig. 3, please refer to fig. 1 and fig. 2. The first fifth metal part 14 includes a first main body piece 141 and a first boss 142, the first boss 142 protrudes from an inner surface of the first main body piece 141, a projection of the first boss 142 on the first main body piece 141 is located in the first main body piece 141 in the axial direction of the housing 11, and an inner peripheral edge of the first inner ring 152 abuts against an outer peripheral surface of the first boss 142. The first bosses 142 are spaced apart from the inner sheet 1313, and the outer surfaces of the first body sheet 141, the first outer ring 151, and the outer sheet 1311 are flush with each other. By adopting the structure, the first seal ring 15 can be stably sleeved on the first hardware 14, and is more conveniently connected with the battery cell 12 through the first boss 142. The outer surfaces of the first body piece 141, the first outer ring 151 and the outer piece 1311 are flush, and the space of the button cell can be saved. Here, in other embodiments, the outer surface of the outer sheet 1311 may protrude from the outer surfaces of the first outer ring 151 and the first body sheet 141 to facilitate electrical connection between the outer sheet 1311 and an external electronic device.

The utility model discloses a button cell's of first preferred embodiment assembly process:

1. sleeving a first inner ring 152 of the first sealing ring 15 on the first boss 142 of the first hardware 14, and sleeving a first outer ring 151 of the first sealing ring 15 on the first main body piece 141 of the first hardware 14;

2. then the first hardware 14 and the first sealing ring 15 which are assembled together are positioned in the ring of the outer sheet 1311 and abutted against the connecting sheet 1312 and the inner sheet 1313, and the first hardware 14, the first sealing ring 15 and the cover 13 are hot-pressed into a whole;

3. the battery cell 12 is arranged in the inner cavity of the shell 11, a pole piece is welded, and electrolyte is injected; the battery cell 12 comprises a first tab and a second tab, the first tab is welded with the cover body 13, and the second tab is welded with the shell 11;

4. the clamping ring 132 is sleeved outside the opening end 111, the lower surface of the cover plate 131 is abutted through the opening end 111, the cover body 13 and the shell 11 are axially positioned, the inner surface of the clamping ring 132 is attached to the outer surface of the shell 11, the cover body 13 and the shell 11 are radially positioned, and solder can be effectively prevented from splashing into the shell 11;

5. the other end of the snap ring 132 in the axial direction is welded to the outer surface of the case 11 by laser welding to fixedly connect the lid 13 and the case 11, thereby forming a sealed battery.

Referring to fig. 4, a second preferred embodiment of the present invention provides a button cell convenient for positioning and assembling, which includes a housing 21, a battery cell 22 and a cover 23. The housing 21 has a cylindrical structure, and one end of the housing 21 in the axial direction is an open end 211. The battery cell 22 is disposed in the casing 21. Open end 211 is located to lid 23 lid, lid 23 includes cover plate 231 and joint ring 232, cover plate 231 is located open end 211 department, joint ring 232 is the tubulose, the periphery and the cover plate 231 fixed connection of cover plate 231 are followed to its ascending one end of axial, joint ring 232 cover is established outside open end 211, and joint ring 232's internal surface and shell 21's surface laminating, joint ring 232 welds at its ascending other end of axial and shell 21's surface, open end 211 and cover plate 231's lower surface butt. The battery core 22 may be wound or chip-type as required.

The utility model discloses a button cell of second preferred embodiment, when lid 23 and shell 21 assemble, establish clamping ring 232 cover outside open end 211, lower surface butt through open end 211 and cover plate 231, carry out axial positioning to lid 23 and shell 21, the internal surface through clamping ring 232 and the surface laminating of shell 21, carry out radial positioning to lid 23 and shell 21, can also effectively prevent that the solder from splashing to in the shell 21, and through clamping ring 232 at its axial other end and shell 21's skin weld, carry out fixed connection with lid 23 and shell 21. The clamping ring 232 can improve the structural strength of the cover plate 231, so that the cover plate is not easy to bend and deform, and the positioning and assembly between the cover body 23 and the shell 21 are facilitated.

The utility model discloses a button cell of second preferred embodiment, location convenience, accuracy, yield height during its equipment can effective proof quality.

With reference to fig. 4, the cover 231 is a ring-shaped flat structure, and the button cell further includes a second hardware 24 and a second sealing ring 25. A second hardware 24 is located at the open end 211, the second hardware 24 being connected to the cell 22. The second sealing ring 25 is clamped between the second fitting 24 and the cover plate 231, so that the cover plate 231 is arranged in a spaced-apart manner from the second fitting 24. The cover plate 231 is of a ring-shaped flat plate structure, so that the structure of the cover plate 231 is simple, the cover plate is easy to machine, and the cover body 23, the second hardware 24 and the second sealing ring 25 are easy to assemble together.

With reference to fig. 4, the second hardware 24 includes a second main body piece 241 and a second boss 242, the second boss 242 protrudes from the lower surface of the second main body piece 241, and a projection of the second boss 242 on the second main body piece 241 is located in the second main body piece 241 in the axial direction of the housing 21. The second sealing ring 25 includes a second outer ring 251 and a second inner ring 252, both of which are annular, the second outer ring 251 is sandwiched between the lower surface of the second body piece 241 and the upper surface of the cover plate 231, the second inner ring 252 is fixedly connected to the second outer ring 251 along the inner circumferential edge of the second outer ring 251, the lower surface of the second inner ring 252 protrudes from the lower surface of the second outer ring 251, and the second inner ring 252 is sandwiched between the side surface of the second boss 242 and the inner side of the cover plate 231. The second boss 242, the second inner ring 252 and the inner surface of the cover plate 231 are flush. With this structure, the second inner ring 252 is fitted over the second boss 242, and the second outer ring 251 is clamped between the lower surface of the second body piece 241 and the upper surface of the cover plate 231, so that the second seal ring 25 is fixed stably and the sealing performance is improved. The inner surfaces of the second boss 242, the second inner ring 252 and the cover plate 231 are flush, so that the three are conveniently hot-pressed into a whole.

In this embodiment, the structures of the cover 23 and the housing 21 are the same as those of the first embodiment, and are not described herein again.

The utility model discloses button cell's of second preferred embodiment assembly process:

1. sleeving the second inner ring 252 of the second sealing ring 25 on the second boss 242 of the second hardware 24, and attaching the upper surface of the second outer ring 251 of the second sealing ring 25 to the lower surface of the second main body piece 241 of the second hardware 24;

2. after the second hardware 24 and the second sealing ring 25 are assembled together, the second inner ring 252 is positioned in the ring of the cover plate 231, the lower surface of the second outer ring 251 is attached to the upper surface of the cover plate 231, and the second hardware 24, the second sealing ring 25 and the cover body 23 are hot-pressed into a whole;

3. the battery core 22 is arranged in the inner cavity of the shell 21, a pole piece is welded, and electrolyte is injected; the battery cell 22 includes a first tab and a second tab, the first tab is welded to the cover body 23, and the second tab is welded to the casing 21;

4. the clamping ring 232 is sleeved outside the opening end 211, the opening end 211 is abutted with the lower surface of the cover plate 231, the cover body 23 and the shell 21 are axially positioned, the inner surface of the clamping ring 232 is attached to the outer surface of the shell 21, the cover body 23 and the shell 21 are radially positioned, and solder can be effectively prevented from splashing into the shell 21;

5. the other end of the snap ring 232 in the axial direction is welded to the outer surface of the case 21 by laser welding, and the lid 23 and the case 21 are fixedly connected to form a sealed button cell.

The utility model discloses a button cell, when lid and shell assemble, establish the joint ring cover outside the open end, through the lower surface butt of open end and cover plate, carry out axial positioning to lid and shell, through the surface laminating of the internal surface of joint ring and shell, carry out radial positioning to lid and shell, can also prevent effectively that the solder from splashing to the shell in to through the outer surface welding of joint ring at its axial other end and shell, carry out fixed connection with lid and shell. The clamping ring can improve the structural strength of the cover plate, so that the cover plate is not easy to bend and deform, and the positioning and the assembly between the cover body and the shell are facilitated. The utility model discloses a button cell, location is convenient during its equipment, accurate, the yield is high, can effective proof quality.

In summary, although the present invention has been disclosed with reference to the preferred embodiments, the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention within the technical scope of the present invention.

Claims (10)

1. The utility model provides a button cell of convenient location equipment which characterized in that includes:

the shell is of a cylindrical structure, and one end of the shell in the axial direction is an opening end;

a cell disposed in the housing; and (c) a second step of,

the lid, its lid is located the open end, the lid includes cover plate and joint ring, the cover plate is located open end department, the joint ring is the tubulose, and its ascending one end of axial is followed the periphery of cover plate with cover plate fixed connection, joint ring cover is established outside the open end, just the internal surface of joint ring with the surface laminating of shell, the joint ring in its ascending other end of axial with the surface welding of shell, the open end with the lower surface butt of cover plate.

2. The button cell battery convenient for positioning and assembling as claimed in claim 1, wherein the snap ring is in interference connection with the housing.

3. Button cell convenient for positioning assembly according to claim 1, characterized in that the height of the snap-on ring is 1/5-1/4 of the height of the casing in the axial direction of the casing.

4. The button cell battery convenient for positioning and assembling as claimed in claim 1, wherein the cover plate and the snap ring are integrally formed by stamping hardware plates.

5. The button cell battery convenient for positioning and assembling as recited in claim 1, wherein the housing is a straight tube, and the snap ring is a straight tube.

6. The button cell convenient for positioning and assembling according to any one of claims 1 to 5, wherein the cover plate comprises an outer plate, a connecting plate and an inner plate, the outer plate, the connecting plate and the inner plate are all annular and are sequentially connected from outside to inside to form a step shape, the outer plate is connected with the clamping ring, and the inner plate is close to the cell relative to the outer plate; the button cell further comprises:

a first hardware located within the ring of the outer sheet; and (c) a second step of,

and the first sealing ring is positioned in the ring of the outer sheet and clamped between the first five metal pieces and the cover sheet.

7. The button cell battery convenient for positioning and assembling as recited in claim 6, wherein the first sealing ring comprises a first outer ring and a first inner ring, and an upper surface of the first outer ring protrudes above an upper surface of the first inner ring; the first outer ring is clamped between the outer peripheral surface of the first five-piece metal and the connecting piece, and the first inner ring is clamped between the first piece metal and the inner piece.

8. The button cell battery convenient to position and assemble as claimed in claim 7, wherein the first five metal pieces comprise a first body piece and a first boss, the first boss protrudes from the inner surface of the first body piece, the projection of the first boss on the first body piece is located in the first body piece in the axial direction of the housing, and the inner periphery of the first inner ring abuts against the outer periphery of the first boss; the first boss and the inner piece are arranged at intervals, and the outer surfaces of the first main body piece, the first outer ring and the outer piece are flush.

9. The button cell facilitating positioning and assembly according to any one of claims 1 to 5, wherein the cover sheet is in a ring-shaped flat plate-shaped structure, and the button cell further comprises:

a second hardware located at the open end, the second hardware being connected with the cell; and the number of the first and second groups,

and the second sealing ring is clamped between the second hardware and the cover piece, so that the cover piece and the second hardware are arranged in an isolated manner.

10. The button cell convenient to position and assemble according to claim 9, wherein the second hardware comprises a second body piece and a second boss, the second boss protrudes from the lower surface of the second body piece, and a projection of the second boss on the second body piece is located in the second body piece in the axial direction of the housing;

the second sealing ring comprises a second outer ring and a second inner ring which are both annular, the second outer ring is clamped between the lower surface of the second main body piece and the upper surface of the cover plate, the second inner ring is fixedly connected with the second outer ring along the inner peripheral edge of the second outer ring, the lower surface of the second inner ring protrudes out of the lower surface of the second outer ring, and the second inner ring is clamped between the side surface of the second boss and the inner side of the cover plate; the inner surfaces of the second boss, the second inner ring and the cover plate are flush.

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