Sealed type magnetic water leakage protector

Abstract

A sealed type magnetic water leakage protector is installed on the outer side of a heating body, and a circuit section of the water leakage protector is connected with a heating circuit of the heating body. The heating body comprises a heating pipe, a water inlet pipe and a water outlet pipe, and the sealed type magnetic water leakage protector comprises a seal shell, an expansion body, an inner magnet and a magnetic induction switch; a seal cavity is formed between the seal shell and the outer wall of the heating pipe, an expansion cavity is formed by the seal shell below an electric heating pipe, the expansion body is fixedly arranged in the expansion cavity, and the inner magnet is fixed with the expansion body; a magnetic induction head of the magnetic induction switch is arranged outside the seal shell and located on the side opposite to the inner magnet. According to the sealed type magnetic water leakage protector, a non-contact magnetic induction detection mode is adopted, whether water leakage exists or not is judged by detecting changes of magnetic field intensity, damage, caused by water leakage, to a user can be completely avoided, and the problem caused by overflow of leaked water after the heating pipe is broken or a connector is disengaged is eliminated.

Description

technical field [0001] The invention relates to a protection device for a heater, in particular to a closed magnetic water leakage protector for an electrothermal film quartz heating tube. Background technique [0002] Electrothermal film quartz heating tube technology is widely used in water dispensers, coffee machines and other products because of its small size, simple structure, high heating efficiency, energy saving and environmental protection. However, these heating equipments all include waterways and circuits, especially the waterways, which are prone to serious water leakage such as joint water seepage, joint falling off, and even heating pipe bursting. Water leaks inside the heating equipment, which not only endangers the work of the equipment itself, even It will cause the circuit part, especially the high-power heating circuit to be short-circuited and burned, and the leaked water may carry high voltage, which will cause personal harm to the contacts. [0003] ...

AI Technical Summary

Problems solved by technology

Once the heating body leaks, especially when there is a serious leak such as a burst tube or the interface falls off, a large amount of water will leak into the chassis, and even submerge the micro switch, causing the micro switch to short-circuit and fail to effectively cut off the control circuit. and heating circuits, and even cause leaking water to be electrified

Therefore the method described in this invention, security is not high enough

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