Thermal protection winding disc

Abstract

A heat protection winding reel, comprising a bracket, a handle is arranged on the bracket, which is convenient to carry; A temperature control switch is set inside the winding shaft, and the ground wire, neutral wire, and live wire are plugged in; the live wire is connected to the temperature control switch and then connected to the coil; the neutral wire and ground wire are connected to the coil; the coil is wound On the bobbin, a plug is provided at the end of the coil. The principle of the invention is simple. When the temperature in the winding reel is too high, the power will be cut off automatically, which can protect the power line and prevent accidents; In the case of instantaneous overload, the temperature control switch will not be automatically disconnected, and there will be no malfunction to interfere with the user's judgment. Portable and easy to move, easy to operate.

Description

technical field [0001] The invention relates to a winding reel, in particular to a thermal protection reel, which belongs to the field of electrical appliances. Background technique [0002] All need to use the longer plug-in board of power cord or coiling reel during building construction or outdoor operation. Although the winding reel solves the problem of messy power cord retraction, but when the power cord is subjected to high-power electrical appliances, or overloaded, short-circuited, etc., the wires wound together are prone to fire due to excessive temperature. [0003] The traditional short-circuit and overload protection adopts over-current protection, that is, when the current reaches the preset safe value, the power supply is disconnected, but many electrical appliances require instantaneous overload function, so many malfunctions will occur, so that users think that the protection is faulty , so give up using it. Contents of the invention [0004] The object ...

AI Technical Summary

Problems solved by technology

Although the winding reel solves the problem of clutter when the power cord is retracted, because the power cord is subjected to high-power electrical appliances, or when overloaded, short-circuited, etc., the wires wound together are prone to fire due to excessive temperature.

[0003] The traditional short-circuit and overload protection adopts over-current protection, that is, when the current reaches the preset safe value, the power supply is disconnected, but many electrical appliances require instantaneous overload function, so many malfunctions will occur, so that users think that the protection is faulty , so give up using

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