Disconnect Switches, Pressure Switch Assemblies, and Pressure Cookers

Abstract

The invention provides a power outage switch, a pressure switch assembly and a pressure cooker. The power outage switch is used in cooperation with a pressure switch, the pressure switch assembly comprises fulcrum bars, a contact piece and an abrupt change piece, the fulcrum bars and the contact piece are located on the upper portion of the pressure switch and installed on the pressure switch in a rotatable mode, one of the ends, away from the contact piece, of the fulcrum bars is connected with an elastic piece of the pressure switch, the other of the ends, away from the contact piece, of the fulcrum bars makes contact with a contact of the pressure switch, and the abrupt change piece is arranged between the ends, close to the contact piece, of the fulcrum bars. The power outage switch is simple in structure and convenient to assemble and can be adjusted in a controllable mode by selecting different abrupt change pieces and screwing screws by different depths, namely, the maximum value of pressure which the pressure switch can bear in an abnormal state can be set autonomously, when the pressure borne by the pressure switch reaches the pressure value set autonomously, the power outage switch jumps to disconnect the power source of the pressure switch, and therefore the pressure in the jump disconnection process is controllable and adjustable.

Description

technical field [0001] The present invention relates to the field of household appliances, and more specifically relates to a power cutoff switch, a pressure switch assembly including the power cutoff switch, and a pressure cooker including the pressure switch assembly. Background technique [0002] When the pressure cooker is working, it will cause pressure release when the pressure switch fails. In order to realize its safety, it is necessary to cut off the heating power supply before the pressure release, so as to realize the power-off protection before the pressure release; the scheme adopted by the related technology is, An additional power-off switch is added to the pressure switch to provide secondary protection for the pressure cooker, that is, to cut off the power-off switch when the pressure switch fails, so as to realize the power-off protection before the pressure cooker is released, through the pressure switch and power-off The purpose of double protection of th...

AI Technical Summary

Problems solved by technology

[0002] When the pressure cooker is working, it will cause pressure release when the pressure switch fails. In order to realize its safety, it is necessary to cut off the heating power supply before the pressure release, so as to realize the power-off protection before the pressure release; the scheme adopted by the related technology is, An additional power-off switch is added to the pressure switch to provide secondary protection for the pressure cooker, that is, to cut off the power-off switch when the pressure switch fails, so as to realize the power-off protection before the pressure cooker is released, through the pressure switch and power-off The purpose of double protection of the pressure cooker is achieved by the cooperation of the switch; however, the existing power-off switches all realize the power-off function through the signal induction principle of electronic components (rather than through the mechanical structure to realize the power-off action). During use, the power switch is very prone to abnormal tripping, which leads to its poor practicability and brings a lot of inconvenience to users.

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