Electromagnetic heating equipment, electromagnetic heating system and heating control device and method thereof

Abstract

The invention discloses an electromagnetic heating device, an electromagnetic heating system and a heating control device and method thereof. The heating control device includes: a voltage zero-crossing detection unit for detecting a voltage zero-crossing signal of an AC input power supply; a voltage detection unit, Used to detect the voltage of the AC input power supply; the control unit is connected to the voltage zero-crossing detection unit and the voltage detection unit respectively, and the control unit is used to provide the voltage reference terminal in the voltage zero-crossing detection unit according to the voltage of the AC input power supply The reference voltage is adjusted, and the switch tube in the electromagnetic heating system is controlled according to the voltage zero-crossing signal. The device adjusts the reference voltage in the voltage zero-crossing detection unit according to the voltage of the AC input power supply, so that the voltage zero-crossing detection unit can obtain a reliable voltage zero-crossing signal, so as to ensure the continuous heating and high temperature of the system under low voltage Reliable operation under high voltage.

Description

technical field [0001] The present invention relates to the technical field of household appliances, in particular to a heating control device for an electromagnetic heating system, an electromagnetic heating system with the heating control device, an electromagnetic heating device with the electromagnetic heating system, and an electromagnetic heating system. Heating control method. Background technique [0002] With the stability of IH (Indirect Heating, indirect heating) heating technology, the penetration rate of induction cooker is getting higher and higher, and its market share in rural areas is relatively high. [0003] However, in some areas, due to the unstable power supply voltage of the power grid, such as Yunnan and Guizhou, small hydropower is generally used for power generation, and the load capacity is relatively small, which can easily lead to a relatively low power supply voltage during peak power consumption, even lower than 120V. At this time, the inducti...

AI Technical Summary

Problems solved by technology

[0003] However, in some areas, due to the unstable power supply voltage of the power grid, such as Yunnan and Guizhou, small hydropower is generally used for power generation, and the load capacity is relatively small, which can easily lead to a relatively low power supply voltage during peak power consumption, even lower than 120V. At this time, the induction cooker will gradually heat up intermittently, which affects the normal use of the induction cooker and reduces the user experience.

Images