阅读说明：本技术 一种压缩型纽扣电池盖板组件 (Compression type button cell cover plate subassembly ) 是由 刘海涛 于 2021-02-02 设计创作，主要内容包括：本发明公开了一种压缩型纽扣电池盖板组件,其中,密封圈为工字型的柱体结构,在密封圈的柱体中心位置设置有容置铆钉钉体的通孔,铆钉的钉体底端延伸至密封圈的柱体下方并在铆钉的钉体底端设置有限位圈一,铆钉的钉体顶端延伸至密封圈的柱体上方并形成有限位圈二,不锈钢连接片、密封垫以及盖板不锈钢片均为中间开孔的环形结构,密封垫以及盖板不锈钢片由上至下依次套设置在密封圈的柱体外部,不锈钢连接片套设在密封圈的上方铆钉上,不锈钢连接片的顶部与限位圈二的底部贴合。本发明密封性高,绝缘性强,且能够保证壳体表面的平整度和稳定性,不易出现电解液漏液以及表面鼓包等现象。(The invention discloses a compression type button battery cover plate component, wherein a sealing ring is of an I-shaped cylinder structure, a through hole for containing a rivet body is formed in the center of a cylinder of the sealing ring, the bottom end of the rivet body extends to the lower side of the cylinder of the sealing ring, a first limiting ring is arranged at the bottom end of the rivet body, the top end of the rivet body extends to the upper side of the cylinder of the sealing ring and forms a second limiting ring, a stainless steel connecting sheet, a sealing gasket and a cover plate stainless steel sheet are all of annular structures with holes in the middles, the sealing gasket and the cover plate stainless steel sheet are sequentially sleeved outside the cylinder of the sealing ring from top to bottom, the stainless steel connecting sheet is sleeved on the rivet above the sealing ring, and the top of the stainless steel connecting sheet is attached. The invention has high sealing performance and strong insulating property, can ensure the flatness and stability of the surface of the shell, and is not easy to generate electrolyte leakage, surface bulge and other phenomena.)

1. The utility model provides a compression type button cell cover plate subassembly which characterized in that: the sealing device comprises a stainless steel connecting sheet (1), a sealing gasket (2), a cover plate stainless steel sheet (3), a sealing ring (4) and a rivet (5), wherein the sealing ring (4) is of an I-shaped cylinder structure, a placing groove for placing the cover plate stainless steel sheet (3) is formed in the outer side of a cylinder, and a through hole for placing the rivet (5) is formed in the center of the cylinder; the bottom end of the rivet (5) extends to the lower portion of the cylinder of the sealing ring (4), a first limiting ring (51) is arranged at the bottom end of the rivet (5), the first limiting ring (51) is attached to the bottom of the cylinder of the sealing ring (4), and the top end of the rivet (5) extends to the upper portion of the cylinder of the sealing ring (4) and forms a second limiting ring (52); the stainless steel connecting piece (1), the sealing gasket (2) and the cover plate stainless steel sheet (3) are all of annular structures with holes in the middle, and the sealing gasket (2) and the cover plate stainless steel sheet (3) are sequentially sleeved outside a cylinder of the sealing ring (4) from top to bottom; the cover plate stainless steel sheet (3) is positioned in the placing groove; the bottom of the sealing gasket (2) is attached to the top of the cover plate stainless steel sheet (3); the stainless steel connecting piece (1) is located above the sealing ring (4) and sleeved on the rivet (5), the bottom of the stainless steel connecting piece (1) is attached to the top of the sealing ring (4) and the top of the sealing gasket (2), and the top of the stainless steel connecting piece (1) is attached to the bottom of the second limiting ring (52).

2. The cover plate assembly for compression-type buttons and batteries according to claim 1, wherein a sunken groove is formed inward at the bottom of the sealing ring (4), and the top of the first limiting ring (51) is positioned in the sunken groove.

3. The cover plate assembly for compression-type buttons or batteries according to claim 1, wherein said stainless steel attachment plate (1) is made of SUS-316L and has a thickness of 0.15 mm.

4. The cover plate assembly for a compression-type button cell according to claim 1, wherein said gasket (2) is a PFA plastic material.

5. The compression type button cell cover plate assembly of claim 1 wherein said cover plate stainless steel sheet (3) is SUS-316L in thickness of 0.2 mm.

6. The cover plate assembly for compression-type button cells according to claim 1, wherein said sealing ring (4) is made of viton.

7. -cell cover plate assembly according to claim 1, characterized in that said rivet (5) is of aluminium alloy.

Technical Field

The invention relates to a cover plate assembly of a compression type button battery, and belongs to the technical field of power batteries.

Background

Along with the development of economy and the progress of society, the life of people is more and more intelligent and convenient. The advent of various electronic devices has reduced the labor of people, making the effort double. Products in the field of intelligent wearing are endlessly developed, and people's lives are crossing a new digital experience era. Among them, the portability and long endurance of batteries of electronic devices are indispensable configurations of the devices. The button cell is a metal sealed shell cell and is characterized by small cell volume, strong sealing property, small cell self-discharge and high energy density. Therefore, the electronic watch is widely used in computers, hearing aids, electronic watches, radios and other small electronic products. The button cell is also called as button cell, and refers to a cell with the external dimension like a small button, generally speaking, the diameter is larger, the thickness is thinner (compared with the columnar cell such as the cell with the number 5 AA on the market), the button cell is named by distinguishing the cell from the external shape, and the equivalent corresponding cell is classified into the columnar cell, the square cell and the like. However, the existing button cell has poor sealing property and insulating property, low reliability, poor flatness and stability of the surface of the shell, and the phenomena of electrolyte leakage, surface bulge and the like easily occur in the existing button cell.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a compression type button cell cover plate assembly which is high in sealing performance and strong in insulating property, can ensure the flatness and stability of the surface of a shell, and is not easy to cause electrolyte leakage, surface bulge and the like.

The technical scheme adopted by the invention is as follows:

a compression type button battery cover plate component comprises a stainless steel connecting piece, a sealing gasket, a cover plate stainless steel sheet, a sealing ring and a rivet, wherein the sealing ring is of an I-shaped cylinder structure, a placing groove for placing the cover plate stainless steel sheet is formed in the outer side of a cylinder, and a through hole for placing the rivet is formed in the center of the cylinder; the bottom end of the rivet extends to the lower part of the cylinder body of the sealing ring, a first limiting ring is arranged at the bottom end of the rivet and is attached to the bottom of the cylinder body of the sealing ring, and the top end of the rivet extends to the upper part of the cylinder body of the sealing ring and forms a second limiting ring; the stainless steel connecting sheet, the sealing gasket and the cover plate stainless steel sheet are all of annular structures with holes in the middle, and the sealing gasket and the cover plate stainless steel sheet are sequentially sleeved outside the cylinder of the sealing ring from top to bottom; the cover plate stainless steel sheet is positioned in the placing groove; the bottom of the sealing gasket is attached to the top of the stainless steel sheet of the cover plate; the stainless steel connecting piece is located above the sealing ring and sleeved on the rivet, the bottom of the stainless steel connecting piece is attached to the top of the sealing ring and the top of the sealing gasket, and the top of the stainless steel connecting piece is attached to the bottom of the limiting ring II.

Preferably, a sunken groove is formed inwards at the bottom of the sealing ring, and the top of the first limiting ring is positioned in the sunken groove.

More preferably, the stainless steel strap is made of SUS-316L and has a thickness of 0.15 mm.

Further preferably, the gasket is made of PFA plastic.

Further preferably, the stainless steel sheet of the cover plate is made of SUS-316L and has a thickness of 0.2 mm.

More preferably, the seal ring is made of fluororubber.

Preferably, the rivet is made of aluminum alloy.

The invention has the beneficial effects that:

the stainless steel connecting sheet, the sealing gasket, the cover plate stainless steel sheet, the sealing ring and the rivet are integrally connected by adopting a die riveting process to manufacture the cover plate assembly, the sealing performance is high, the insulating property is strong, the flatness and the stability of the surface of the shell can be ensured, and the phenomena of electrolyte leakage, surface bulging and the like are not easy to occur; and the original mold injection molding process of the cover plate assembly is replaced by the mold riveting process, so that the production process of the cover plate assembly of the button battery is simplified, and the cost is saved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of an assembly structure of the present invention;

the main reference numbers in the figures:

1. stainless steel connecting piece, 2, sealed pad, 3, apron stainless steel sheet, 4, sealing washer, 5, rivet, 51, spacing collar one, 52, spacing collar two.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

As shown in fig. 1-3: the utility model provides a compression type button cell cover plate subassembly, includes stainless steel connection piece 1, sealed pad 2, apron stainless steel sheet 3, sealing washer 4 and rivet 5, and sealing washer 4 is the cylinder structure of I shape, is equipped with the standing groove of placing apron stainless steel sheet 3 in the cylinder outside of sealing washer 4, is provided with the through-hole of the 5 nail bodies of holding rivet in the cylinder central point of sealing washer 4 position. The bottom of the rivet body of rivet 5 extends to the cylinder below of sealing washer 4 and is provided with spacing collar one 51 in the nail body bottom of rivet 5, the laminating of spacing collar one 51 and the cylinder bottom of sealing washer 4, the nail body top of rivet 5 extends to the cylinder top of sealing washer 4 and is formed with spacing collar two 52, stainless steel connection piece 1, sealed 2 and apron stainless steel sheet 3 are the loop configuration of middle trompil, sealed 2 and apron stainless steel sheet 3 of packing are the set in proper order outside the cylinder of sealing washer 4 from top to bottom, and apron stainless steel sheet 3 is located the standing groove of sealing washer 4. The sealing gasket 2 is sleeved outside the small-caliber end of the sealing ring 4, the bottom of the sealing gasket 2 is attached to the top of the cover plate stainless steel sheet 3, the stainless steel connecting sheet 1 is located above the sealing ring 4 and sleeved on the rivet 5, the bottom of the stainless steel connecting sheet 1 is attached to the top of the small-caliber end plate of the sealing ring 4 and the top of the sealing gasket 2, and the top of the stainless steel connecting sheet 1 is attached to the bottom of the second limiting ring 52.

Referring to fig. 1, a sunken groove is formed inwards at the bottom of the sealing ring 4, and the top of the first limiting ring 51 is positioned in the sunken groove.

In the embodiment, the stainless steel connecting piece 1 is made of SUS-316L material, and the thickness is 0.15 mm; the sealing gasket 2 is made of PFA plastic material; the cover plate stainless steel sheet 3 is made of SUS-316L material and has the thickness of 0.2 mm; the sealing ring 4 is made of fluororubber; the rivet 5 is made of aluminum alloy.

In practical application, as shown in fig. 3, after the components are assembled, the rivet is riveted through a die, downward acting force is applied to the rivet 5 along the vertical direction, so that the top end of the rivet 5 forms a second limit ring 52 and continues to apply downward acting force, the diameter of the rivet 5 in the through hole of the sealing ring 4 expands, the sealing ring 4 is compressed in the peripheral direction, the column body of the sealing ring 4 deforms, and the bottom of the sealing ring 4 forms a top part with a sink groove for accommodating the first limit ring 51 under the action of downward pressure, so that the integral sealing of the cover plate assembly of the button cell is realized.

The above description is only a preferred embodiment of the present patent, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the inventive concept, and these modifications and decorations should also be regarded as the protection scope of the present patent.