Intrinsic safe explosion-proof magnetic switch

Abstract

The invention discloses an intrinsic safe explosion-proof magnetic switch. The intrinsic safe explosion-proof magnetic switch comprises a sealing casing, a circuit path displacement module prepared by a paramagnetic material in the sealing casing and an active magnetic module handle which is arranged at an outer portion of the casing and is opposed to and isolated from the circuit path displacement module , wherein material of the sealing casing is a non-paramagnetic material which can not block magnetic field penetration, the sealing casing prepared by non-paramagnetic material is internally provided with lead terminals, a lead terminal plane is provided with the opposed circuit path displacement module which can rotate or slide, limit of the opposed circuit path displacement module depends on a center shaft or a slide slot, a main material of the opposed circuit path displacement module is a magnetic material or the paramagnetic material, position change of the opposed circuit path displacement module can realize circuit conversion in the sealing casing, and motion of the opposed circuit path displacement module depends on the active magnetic module handle which are arranged at the outer portion of the casing. According to the intrinsic safe explosion-proof magnetic switch, torque or thrust force transmission between the active magnetic module handle and the opposed circuit path displacement module arranged in the sealing casing depends on magnetic field force effects to realize switch driving and sealing control of electric sparks during contact opening and closing.

Description

Technical field [0001] The invention relates to a circuit control operation device. More specifically, the invention provides a non-direct contact circuit switching operation switch device for sealing and isolating the dynamic spark of the circuit contact. Background technique [0002] In daily life and production, most of the explosion and combustion accidents of flammable and explosive hazardous chemicals are caused by the leakage of flammable and explosive media and the mixture is ignited by electric sparks. The international community has increasingly higher requirements for the production safety of hazardous chemicals. , The lessons of many major explosion pollution accidents have forced domestic and foreign petrochemical and other flammable and explosive hazardous chemicals industries to continuously improve the safety and explosion-proof requirements of equipment and facilities in the production, storage and transportation sites. The purpose is to improve the protection of ...

AI Technical Summary

Problems solved by technology

[0003] For example, the power distribution cabinets, starter cabinets, and lighting control switches used in the production, storage and transportation of flammable and explosive hazardous chemicals must be isolated or have flame-proof designs due to environmental requirements. Due to factors such as the aging of seals and assembly problems, it is difficult to absolutely block the natural gas from invading around electrical contacts, which makes it difficult to completely eliminate and effectively prevent and control the hidden danger of contact sparks.

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