Permanently safe heating blanket controller with comprehensive overheating protection and constant effectivity

Abstract

The present invention relates to a Yong'an electric blanket controller with comprehensive thermal protection and constant efficiency. The technical solution adopted is: firstly, the current maintenance locking and disconnection protection circuit provides the current for maintaining locking for the comprehensive Yong'an self-locking circuit through the heat-through line and the heat-through line. , and then the comprehensive Yongan self-locking circuit controls the lock control switch to connect the heating wire and the AC power supply of the protection and temperature control circuit at both ends to realize disconnection protection; the temperature sensing potential obtained by detecting the temperature of the heating wire with the heat transfer wire is transmitted to the heating temperature The control circuit controls the temperature of the heating wire; utilizes the overheating melting and short-circuit characteristics of the isolation layer between the heat-through wire and the heat-through wire to control the comprehensive Yongan self-locking circuit and the lock control switch to unlock and cut off the power to realize overheating protection; use the blocking current to maintain comprehensive Yongan The self-locking circuit and the lock control switch are locked, and when a fault occurs, the lock will be unlocked and the power will be cut off, ensuring that the overheating protection function will never fail, eliminating the false safety hazards and defects that existed in the previous electric blankets. It can be seen that the present invention is a Yongan electric blanket controller with comprehensive heat preservation and constant effect.

Description

technical field [0001] The invention belongs to the technical field of household appliances or electric heating control, and particularly relates to a permanently safe electric blanket controller that can comprehensively guarantee constant and effective overheating protection function under abnormal conditions, abbreviated as Yongan Electric Blanket Controller with Comprehensive Thermal Protection and Constant Efficiency . Since the electric blanket is a flexible electric heating body, the present invention is also particularly suitable as a Yongan controller for the electric heating body. 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 treatme...

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 of control) permanently safe electric blanket or electric heating body controller; solve the technical problem of high temperature runaway and fire accidents caused by the high temperature of the existing electric blanket in abnormal failure, and completely eliminate the safety hazards and defects of the existing electric blanket in the past

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