Variable-frequency heating system for electric heating plate

Abstract

The invention discloses a variable-frequency heating system for an electric heating plate. The variable-frequency heating system corresponds to the electric heating plate and comprises a controller and a variable-frequency heating device, wherein the variable-frequency heating device is connected with the controller; the controller comprises a control box body; a circuit board is arranged in the control box body and is provided with a power module, a single chip microcomputer, a rectifier, a filter, an inverter, a load circuit and a display module; the power module is connected with an external power supply and is connected with the single chip microcomputer and the rectifier; the single chip microcomputer is connected with the display module; the rectifier is connected with the filter; the filter is connected with the inverter; the inverter is connected with the load circuit; the load circuit is connected with the variable-frequency heating device; and the control box body is provided with a display screen. The variable-frequency heating system is reasonable in design; the performance of the power supply is improved; the heating cost is reduced; the heating volume is reduced; local heating can be finished; and the heating capacity and the heating temperature can be accurately controlled according to the demand quantity, so that waste of energy is reduced; the cost is reduced; and the electro-thermal conversion energy efficiency ratio is greatly improved.

Description

technical field [0001] The invention belongs to the field of heating equipment, and in particular relates to a frequency conversion heating system for electric heating panels. Background technique [0002] Existing heating systems are generally formed by winding resistance heating wires or heated by fuel open flames. The heating method is wound by resistance wire, heat is generated on both sides inside and outside, the heat on the inner surface (close to the barrel part) is conducted to the barrel, and most of the heat on the outside is lost to the air, resulting in direct loss and waste of electric energy. Resistance heating is relatively inefficient and consumes a lot of power due to the need to convert electrical energy into heat energy through resistance. The life of the heating wire is short, the maintenance cost is high, and the electric heating plate cannot be separated from the electricity, so there are dangers such as short circuit. [0003] Since the heat will be...

AI Technical Summary

Problems solved by technology

The heating method is wound by resistance wire, heat is generated on both sides of the inside and outside, the heat on the inner surface (close to the barrel part) is conducted to the barrel, and most of the heat on the outside is lost to the air, resulting in direct loss and waste of electric energy

Resistance heating needs to convert electrical energy into heat energy through resistance, so the efficiency is relatively low and the power consumption is large

The life of the heating wire is short, the maintenance cost is high, and the electric heating plate cannot be separated from the electricity, so there are risks such as short circuit

[0003] Since the heat will be dissipated through the air and heating materials, fuel open flame heating is less efficient than resistance heating, and has a greater impact on the environment. Excluding a large amount of dust objects may also cause dangerous situations such as carbon monoxide poisoning, even if the fuel is changed. It is also difficult to reduce the impact on the environment

Moreover, due to efficiency and material problems, the above two heating methods are costly, large in size, and expensive to occupy

Images