Stably safe electric heating body controller capable of comprehensively preventing overheating protection failure

Abstract

The present invention relates to a Wenan electrothermal body controller that comprehensively prevents failure of overheating protection. The adopted technical scheme is: firstly, the current maintenance locking circuit provides the current for maintaining locking for the self-locking circuit that prevents failure through the heat-through wire and the heat-through wire, and then the The anti-failure self-locking circuit controls the lock control switch to connect the blocking circuit and the AC power of the heating wire; use the half-wave power supply and the gear temperature adjustment switch to manually adjust the temperature of the heating wire; use the isolation between the heat flux line and the heat penetration line The overheating, melting and short-circuit characteristics of the layer control the anti-failure self-locking circuit and the lock control switch to unlock and power off, and realize the overheat protection function; use the maintenance blocking current to control the anti-failure self-locking circuit and the lock control switch to close the lock, and the lock will be unlocked when an open circuit fault occurs Power failure prevents loss of control, ensures that the overheating protection function will never fail, and completely eliminates the false safety hazards and defects that existed in the past electric heaters or electric blankets. It can be seen that the present invention is a stable electric heater controller that comprehensively prevents overheating protection failure.

Description

technical field [0001] The invention belongs to the field of household appliances or electric heating control, and particularly relates to a stable and safe electric heating body or electric blanket controller that can fully prevent overheating protection failure under abnormal conditions, referred to as "stable electric heating body control comprehensively preventing overheating protection failure" device". Since the electric blanket is a kind of flexible electric heating body, the present invention is also particularly suitable as a safety controller for the electric blanket. Background technique [0002] In cold weather, the electric blanket is the preferred heating appliance for warming the bed. It not only makes people feel warm and comfortable when sleeping, and makes it easy to fall asleep, but also its radiated infrared rays and low-frequency electromagnetic fields have certain physiotherapy and health care effects on the human body and rheumatism treatment effects; ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to design a device with automatic temperature control or manual control and overheating protection, electric heating wire (wire) break arc protection function, and the protection function will never fail (or never fail) no matter in normal or abnormal state. out o...

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