An explosion-proof electric box

Abstract

The invention relates to an anti-explosion electricity taking box which is applied to electricity taking of electric appliances in flammable and combustible places. The anti-explosion electricity taking box is characterized in that a box body and a box cover are included, a power socket and a magnetically-controlled switch are arranged inside the box body, a permanent magnet is arranged on the box cover, the L end of the power socket is connected with a live line through the magnetically-controlled switch, when the box cover is closed, the permanent magnet acts on the magnetically-controlled switch to enable the magnetically-controlled switch to be in a conducting state so that the power socket can be powered up, and when the box cover is opened, the permanent magnet is far away from the magnetically-controlled switch to enable the magnetically-controlled switch to be in an open circuit state so that the power socket can be powered off. The anti-explosion electricity taking box has the advantages that an electric connecting contact point of a reed switch is in a reed switch sealed environment and is isolated from the outside, the reed switch is flame resistant in itself, when a plug is plugged into the power socket or is pulled out of the power socket, the power socket is in a power-off state, hence, electric sparks are avoided, and the intrinsic safety explosion proof effect can be achieved.

Description

technical field [0001] The invention relates to an explosion-proof electricity taking box, which is used for taking electricity from electrical appliances in inflammable and explosive places. Background technique [0002] The moment the electrical plug is inserted into the socket, due to the existence of a large contact resistance, sparks and heat will be generated at the contact point. With the stable contact of the plug and socket contacts, the sparks and heat will disappear. When the electrical plug is pulled out When using a socket, often due to the existence of the load, sparks will also be generated at the moment when the contacts are separated, so the sparks and heat of the power contacts in flammable and explosive places can easily cause explosion accidents. With the application of new technologies in petroleum and petrochemical industries, especially the application of information-based computers, such as: online analysis instruments, computers, PLCs, operating stat...

AI Technical Summary

Problems solved by technology

With the application of new technologies in petroleum and petrochemical industries, especially the application of information-based computers, such as: online analysis instruments, computers, PLCs, operating stations, rechargeable flashlights, wireless walkie-talkies, notebook computers, etc. in daily use, will encounter power-taking problems. Or charging problems, because the existing charging adapters do not consider the explosion-proof design (or it is impossible to carry out the explosion-proof design), contact sparks will be generated at the moment of plugging in or pulling out the socket, if it is used directly in the explosion-proof area, it may cause an explosion accident

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