Overpressure self-locking rubber safety valve

Abstract

The invention discloses an overpressure self-locking rubber safety valve. The overpressure self-locking rubber safety valve comprises a liquid injection hole, wherein the liquid injection hole is sleeved with a rubber valve sleeve, and a fastening part is arranged on the rubber valve sleeve; a mounting plate is arranged inside the rubber valve sleeve, the lower end face of the mounting plate is in lap joint with the upper end face of the liquid injection hole, an exhaust pipe is connected to the mounting plate in an inserted mode, and the exhaust pipe is sleeved with a self-locking valve part; and the rubber valve sleeve is fixedly arranged on the lower end face of a rubber valve cap. According to the overpressure self-locking rubber safety valve, through the arrangement of a sealing cover, a sealing ring, the exhaust pipe and the like, the effects that automatic locking is carried out after pressure relief, electrolyte liquid is prevented from rushing out along with gas, pollution and waste are avoided, and the like are achieved, and the problems that after gas is exhausted, most rubber valves fall back due to gravity, are sealed again and are not tight enough, and the electrolyte liquid pollutes the rubber valves in the gas release process are solved.

Description

technical field [0001] The invention relates to the technical field of rubber safety valves, in particular to an overpressure self-locking rubber safety valve. Background technique [0002] Lithium-ion batteries are widely used because of their small size, high energy density, and no pollution. After the assembly of lithium-ion batteries, they must be pre-charged to activate the formation process of active materials in the battery before they can be used normally. During the formation process, the inside of the battery Gas will be produced. [0003] The sealing structure of the existing large-capacity buried ion battery adopts a rubber valve with one-way valve opening and pressure relief capability to cooperate with the battery cover. However, most rubber valves use gravity to fall back after the gas is discharged to reseal. , the combination is not tight enough, and there is a problem that the electrolyte liquid contaminates the rubber valve during the process of releasing...

AI Technical Summary

Problems solved by technology

[0003] The sealing structure of the existing large-capacity buried ion battery adopts a rubber valve with one-way valve opening and pressure relief capability to cooperate with the battery cover. However, most rubber valves use gravity to fall back after the gas is discharged to reseal. , the combination is not tight enough, and there is a problem that the electrolyte liquid contaminates the rubber valve during the process of releasing gas

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