Controller of heat pump water heater

Abstract

The invention discloses a controller of a heat pump water heater, comprising a control module of which the core is a singlechip, an outer sensor for detecting defrosting temperature, a water tank sensor for detecting the water temperature in the water tank, an A / D conversion module and a relay driving module, wherein, the relay driving module comprises a relay for controlling on / off of a fan, a compressor and a four-way valve; a control module acquires and controls the temperature of the outer sensor and the water tank sensor; control signal is output to the relay driving module to control on / off the fan, the compressor and the four-way valve according to the setting of a key input module to the water tank temperature in different time sections, thereby realizing the purpose that a hot water pump can automatically convert the heat insulation status and the heating status. The controller of the invention adopts the singlechip to carry out core control, has high accuracy, can display the temperature intuitively, and simultaneously can carry out time-phased heating according to using requirements, thereby achieving the efficacy of saving energy power and being worth to be popularized.

Description

technical field [0001] The invention relates to a controller, in particular to a heat pump water heater controller. Background technique [0002] At present, the water heater products generally sold in my country's water heater market are gas water heaters, electric water heaters and solar water heaters. Among them, gas water heaters have serious safety hazards in use, and poisoning incidents caused by the use of gas water heaters are reported from time to time every year; electric water heaters consume a large amount of expensive electricity, which is not conducive to the rational use of energy; conventional solar energy Water heaters can't produce hot water in rainy days, and can only rely on electric heating to make up for the lack of solar energy, so there is also a waste of energy, especially in some southern regions where there are more rainy days, it is not very economical to use such water heaters. Therefore, a new type of water heater based on the heat pump cycle p...

AI Technical Summary

Problems solved by technology

Most of them are based on maintaining a constant temperature, and the peak of household water use generally only has three time periods. If the constant temperature is kept constant, energy will be wasted, and most of the controllers in the prior art are composed of analog circuits and digital circuits. Not high, the display is not intuitive enough, the control function is relatively simple, it is difficult to play the best effect of the heat pump water heater

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