Quick warming device and method

Abstract

The invention discloses a quick warming device comprising a splint, a metal ceramic heating element, a sampling resistor, bidirectional silicon controlled, a control chip, a keying unit and an auxiliary circuit connected with the control chip, wherein the splint is used for heat load, and the metal ceramic heating element is installed in the splint; the sampling resistor is used for detecting voltage on the heating element to obtain a sampling voltage, and the other path detects the input voltage of mains supply; the control chip compares the sampling voltage with the input voltage and converts into the practical temperature value of the heating element; the control chip controls the conduction of the bidirectional silicon controlled according to the temperature variation rate of the heating element and the difference of the practical temperature value and a preset temperature value, thus regulating the heating of the heating element, and achieving the purpose of quickly and preciselywarming.

Description

technical field [0001] The invention relates to a temperature raising device, in particular to a rapid temperature raising device and method. Background technique [0002] Because modern people pursue time and efficiency, rapid heating technology is widely used, especially in the heating process of hair straighteners and curlers in professional salons. However, it takes at least 1 minute for an ordinary hair straightener to be turned on to reach a temperature that can be used. In order to compete for the market, some manufacturers blindly increase the heating rate, but they cannot solve the serious accidents such as the melting glue falling off the plywood once the control circuit fails due to rapid heating. [0003] Chinese patent ZL200720120927.4 discloses a dual-voltage multi-temperature controllable heating circuit, which uses a sensor to measure the temperature, and the heating element is separated from the sensor. Due to the sensitivity problem of the sensor itself, a...

AI Technical Summary

Problems solved by technology

However, it takes at least 1 minute for an ordinary hair straightener to turn on and reach the temperature that can be used.

In order to compete for the market, some manufacturers blindly increase the heating speed, but they cannot solve the serious accidents such as the melting glue falling off the plywood once the control circuit fails.

[0003] Chinese patent ZL200720120927.4 discloses a dual-voltage multi-temperature controllable heating circuit, which uses a sensor to measure the temperature, and the heating element is separated from the sensor. Due to the sensitivity problem of the sensor itself, and the gap between the sensor and the heating element The heat conduction process causes the sensor signal to be delayed compared to the actual temperature, so this solution cannot achieve rapid response and precise control in rapid temperature rise control. The faster the temperature rise rate, the easier it is to cause large temperature fluctuations and large temperature overshoots.

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