Electric auxiliary heating solar water heater temperature controller module and solar water heater

Abstract

The invention belongs to the technical field of solar water heaters, and discloses an electric auxiliary heating solar water heater temperature controller module and a solar water heater. The module comprises an over-temperature temperature controller, a normal-temperature temperature controller and a heating pipe which are sequentially connected in series, wherein the over-temperature temperature controller can automatically reset when there is no current through the temperature controller. The module also comprises a fuse resistor which is in parallel connection with zero line contacts of the over-temperature temperature controller, wherein after the fuse resistor fuses, a fire line contact of the over-temperature temperature controller opens. The module is simple in structure and convenient to mount; the fuse resistor is in parallel connection with two ends of the zero line contacts of the over-temperature temperature controller, and at the solar heating state, the over-temperature temperature controller can automatically reset, and at the electric heating state, the fuse resistor fuses and double-pole break of the over-temperature temperature controller can be achieved.

Description

technical field [0001] The invention relates to the field of solar water heaters, in particular to an electric auxiliary heating solar water heater thermostat module and a solar water heater. Background technique [0002] Pressure-bearing solar water heaters have gradually become mainstream products in the high-end solar market due to their advantages in bathing comfort and water quality. The pressurized solar water heater is mainly divided into two parts: the heat collector and the water storage tank, and the heat collector and the water storage tank are connected together by a circulation pipeline. Because solar water heaters are greatly affected by weather factors, the heat obtained by solar water heaters is not stable, and the hot water in solar water heaters often occurs in cloudy and rainy days. Based on the above reasons, the solar water heater water storage tank with electric auxiliary heating function arises at the historic moment. Water storage tanks with electri...

AI Technical Summary

Problems solved by technology

Since the over-temperature thermostat cannot identify whether it is electric auxiliary heating or solar heating that promotes the rise of water temperature to reach the temperature control range of the over-temperature thermostat, it is very easy to cause frequent malfunctions of the over-temperature thermostat, and the over-temperature thermostat malfunctions. Actions not only cause unnecessary after-sales door-to-door service, but also easily cause user complaints, reduce product quality and user experience

[0005] (2) The installation structure is complex

However, the above-mentioned over-temperature thermostat with self-resetting structure will bring potential safety hazards to the water storage tank. Although the normal temperature thermostat has failed in this case, under the control of the over-temperature thermostat with self-resetting structure, heating Tubes still work

Since the pressurized solar water heater water storage tank is a pressure vessel, the water temperature in the water storage tank is usually above 90°C, which exceeds the temperature control range of the over-temperature thermostat. If the temperature continues to rise, serious safety hazards will appear in the water storage tank

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