Hot-melt fully-sealed button cell shell and assembly process thereof

Abstract

The invention relates to a hot-melt fully-sealed button cell shell. Battery field, the air purifier comprises an inner shell and an outer shell arranged on the inner shell in a covering mode. The inner shell comprises a bottom plate and an annular first baffle arranged on the edge of the bottom plate. The shell comprises a top plate and an annular second baffle arranged on the edge of the top plate, wherein the second baffle is arranged on the outer side of the first baffle in a manner of surrounding the first baffle, and is characterized in that a first sealing layer is fixedly arranged on the side surface of the outer side of the first baffle, a second sealing layer is fixedly arranged on the side surface of the inner side of the second baffle, and the second sealing layer abuts againstthe first sealing layer. The sealing effect is good, and the sealing structure is stable.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a hot-melt fully sealed button battery casing and an assembly process. Background technique [0002] The casing of the existing steel-cased button battery usually includes an inner casing and an outer casing, and a casing with a cavity interface inside is obtained by sheathing the outer casing on the inner casing, wherein a seal for sealing is provided between the outer casing and the inner casing. The sealing ring between the outer shell and the inner shell is pressed against the surface of the outer shell and the inner shell through its own elastic deformation, and the sealing ring forms a semi-tight sealing structure between the outer shell and the inner shell through physical connection. The structure is easily damaged. For example, when the battery casing is deformed by external force, the deformation of the casing will cause a gap in the sealing structure, which will cause problems...

AI Technical Summary

Problems solved by technology

[0002] The casing of the existing steel-cased button battery usually includes an inner casing and an outer casing, and a casing with a cavity interface inside is obtained by sheathing the outer casing on the inner casing, wherein a seal for sealing is provided between the outer casing and the inner casing. The sealing ring between the outer shell and the inner shell is pressed against the surface of the outer shell and the inner shell through its own elastic deformation, and the sealing ring forms a semi-tight sealing structure between the outer shell and the inner shell through physical connection. The structure is easily damaged. For example, when the battery casing is deformed by external force, the deformation of the casing will cause a gap in the sealing structure, which will cause problems such as leakage and bulging of the button battery, which will affect the safety and service life of the battery.

[0003] In addition, when assembling the shell of the existing steel shell button battery, it is necessary to first set the sealing ring on the side of the inner shell, and then set the outer shell on the inner shell. The phenomenon that the ring slips off the inner shell

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