Central heating and household control device for electric ground heating

Abstract

The invention discloses a central heating and household control device for electric ground heating. A casing is provided with a strong current input switch and a liquid crystal display screen, wherein the strong current input switch is connected with a strong current input circuit; the casing is internally provided with a central processing unit, a weak current control circuit and a strong current control circuit; the strong current input switch is connected with the central processing unit by converting 220V into 24V; an output port of the central processing unit is respectively connected with the liquid crystal display, the weak current control circuit and the strong current control circuit; the weak current control circuit is connected with a temperature controller arranged in each room; and a half-wave starting control circuit is connected between the strong current control circuit and the central processing unit and is connected with a heating cable. On the one hand, the invention can be used for automatically dispensing the power of the heating cable, avoid the burnout of the heating cable because the heating cable gathers the heat for a long term and the heat cannot be dissipated. On the other hand, the invention can be used for easily controlling the power consumption and automatically dispensing the load of a transformer.

Description

technical field [0001] The invention belongs to the field of central heating electrical equipment, and in particular relates to a household control device for central heating. Background technique [0002] At present, central heating mainly refers to the way that hot water or steam is used as the heat medium, and one or more heat sources supply heat energy to heat users in cities, towns or some of them through the heat network. The heat sources are mainly thermal power plants and regional boiler rooms (industrial regional boiler rooms generally use steam boilers, and civil regional boiler rooms generally use hot water boilers), using coal, heavy oil or natural gas as fuel. The heating network is divided into a hot water pipe network and a steam pipe network, which are composed of heat transmission main lines, heat distribution main lines and branch lines. Branch-like, laid underground. Its advantages are saving energy, reducing air pollution, improving environmental sanita...

AI Technical Summary

Problems solved by technology

However, there are still some shortcomings, mainly because the power supply is connected to the traditional non-PTC material constant power heating cable through the thermostat. First, the heating cable accumulates heat for a long time, and if the heat cannot be dissipated, it will easily cause the heating cable to burn out, making maintenance difficult. ; Second, the power consumption is not easy to control

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