Live-wire-free safe socket

Abstract

The invention provides a live-wire-free safe socket. The live-wire-free safe socket comprises an iron core which is wound with a primary coil and a secondary coil, wherein the primary coil comprises more two same branched coils; the branched coils are made of thin steel wires and are connected in parallel between a live wire and a neutral wire; the secondary coil is made of thick steel wires, and the number of turns of the secondary coil is equal to the number of the turns of each branched coil; two output ends of the secondary coil are electrically connected with a pair of socket reeds. According to the live-wire-free safe socket, the live wire can be isolated, so that the safety is improved; furthermore, the live-wire-free safe socket can be used for supplying power to large-current electric appliances.

Description

technical field [0001] The invention relates to the field of electric facilities, in particular to an electric socket. Background technique [0002] The socket is the power infrastructure, which is the power-taking interface of the terminal electrical equipment; the current power socket adopts the in-line structure, that is, the electrical plug is directly in electrical contact with the zero live wire. Therefore, one jack of the socket must correspond to the live wire. If the finger of the human body electrically touches the reed in the jack, it will inevitably lead to electric shock and cause a safety accident. [0003] For this reason, in some existing design schemes, the socket is designed using the transformer principle, so that the zero live wire is electrically connected to the primary coil of the transformer, and the reed of the socket is electrically connected to the secondary coil of the transformer; however, for this kind of socket, only It can supply electrical a...

AI Technical Summary

Problems solved by technology

[0002] The socket is the power infrastructure, which is the power-taking interface of the terminal electrical equipment; the current power socket adopts the in-line structure, that is, the electrical plug is directly in electrical contact with the zero live wire. Therefore, one jack of the socket must correspond to the live wire. If the fingers of the human body electrically contact the reed in the jack, it will inevitably lead to electric shock and cause a safety accident

[0003] For this reason, in some existing design schemes, the socket is designed using the transformer principle, so that the zero live wire is electrically connected to the primary coil of the transformer, and the reed of the socket is electrically connected to the secondary coil of the transformer; however, for this kind of socket, only It can supply electrical appliances with very small power. For ordinary household appliances, if the power is about 600w and the rated voltage is 220V, it needs a current of about 3A. For ordinary transformers, because the diameter of the copper wire of the primary coil is very thin, it cannot bear it at all For such a scale of current, if the copper wire of the primary coil is thickened, the input resistance will be greatly reduced, even close to zero, and there will be a large amount of power loss under no-load conditions, resulting in huge waste

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