Heat pump system and judgment method for defrosting retreat of heat pump system

Abstract

The invention provides a heat pump system and a judgment method for defrosting retreat of the heat pump system, and belongs to the technical field of air source heat pumps. The problems that in the design in the prior art, judgment is achieved only according to the environment temperature value, misjudgement is prone to happening, and consequently the defrosting time is too long are solved. According to the heat pump system and the judgment method for defrosting retreat of the heat pump system, the heat pump system comprises a heat pump unit and a wire controller, and is characterized in thatan environment temperature sensor and a high voltage sensor arranged in the unit and located on the high voltage segment are arranged in the heat pump unit; and the control method comprises the following steps of parameter initialization setting and the like. The heat pump system and the judgment method for defrosting retreat of the heat pump system have the advantages that on the basis that judgment is achieved only according to the environment temperature value in the prior art, judgment of the pressure value is added (pressure detection is more accurate, delay of the detection value is small), judgment of defrosting retreat is more accurate, the problems that, judgment is originally achieved only according to the environment temperature value, misjudgement is prone to happening, and consequently the defrosting time is too long are solved, and the use effect of users is improved.

Description

technical field [0001] The invention belongs to the technical field of air source heat pumps, and in particular relates to a heat pump system and a method for judging its defrosting exit. Background technique [0002] In the existing air source heat pump system, the judging condition when defrosting exits basically only refers to the temperature value collected by the temperature sensor, but the temperature collected by the temperature sensor may deviate due to the change of the ambient temperature or its own insulation problem, and When there is a large change in temperature, there will also be a problem of detection delay. When the detected temperature is lower than the actual value, it will prolong the defrosting exit time and affect the user's use effect (the water temperature drops during defrosting, the longer the defrosting time, the more the water temperature drops, and the more the user's use effect is affected). Contents of the invention [0003] The object of t...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the above problems and provide a method for judging defrosting exit that solves the problem in the prior art that judgments are prone to misjudgments based only on the ambient temperature value and lead to too long defrosting time

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