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Over-voltage protection switch and pressure device with same

An overvoltage protection and switching technology, applied in pressure cookers, cooking utensils, household appliances, etc., can solve the problems of electric pressure cookers bursting, user injury, etc., and achieve the effects of increased use safety, low cost, and simple structure

Active Publication Date: 2018-02-02
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the pressure relief valve fails or there is no normal leakage between the pot body and the cover to discharge the gas in the electric pressure cooker, the electric pressure cooker is prone to burst open, thereby causing harm to the user

Method used

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  • Over-voltage protection switch and pressure device with same
  • Over-voltage protection switch and pressure device with same
  • Over-voltage protection switch and pressure device with same

Examples

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Embodiment Construction

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0031] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Rear", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Axial", "Radial", "Circumferential" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descriptio...

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PUM

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Abstract

The invention discloses an over-voltage protection switch and a pressure device. The over-voltage protection switch comprises a first switch terminal, a second switch terminal, a touch rod, a lockingtorsion spring, a switch body and a sealing device; the first switch terminal is provided with a first contact; the second switch terminal is provided with a second contact which is in constant contact with the first contact; a locking groove is formed in the touch rod; the switch body is provided with a connecting port connecting with the external environment; the sealing device is installed inside the switch body; the touch rod is connected with the sealing device; the sealing device is configured to drive the touch rod to touch the second switch terminal so that the second contact moves toa break-up position from a contacting position when the environment pressure applied in a communicating port reaches to a preset pressure; a first end of the locking torsion spring is fixed and a second end is movable; the second end of the locking torsion spring is matched in the locking groove so that the second contact is kept in the break-up position. According to the over-voltage protection switch, power off protection under abnormal overpressure can be realized.

Description

technical field [0001] The invention relates to the field of household electrical appliances, in particular to an overvoltage protection switch and a pressure appliance having the same. Background technique [0002] In the related art, the normal pressure range of the electric pressure cooker is 70kPa (kiloPascal). During the normal use of the electric pressure cooker, a pressure relief valve or a leak between the pot body and the cover of the electric pressure cooker is usually used to realize normal pressure relief. However, when the pressure relief valve fails or there is no normal leakage between the pot body and the cover to discharge the gas in the electric pressure cooker, the electric pressure cooker is prone to burst open, thereby causing harm to users. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, an object of the present invention is to propose an overvo...

Claims

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Application Information

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IPC IPC(8): A47J27/09A47J27/08
CPCA47J27/0804A47J27/09
Inventor 吕伟刚李昊燮
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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