Automatic defrosting system of air heat source pump

Abstract

The invention discloses an automatic defrosting system of an air heat source pump. The automatic defrosting system comprises a solar power supply module, an electric heating defrosting module and a defrosting control module. Wherein the solar power supply module comprises a solar panel and a battery pack, the solar panel is installed on the top of the air source heat pump outdoor unit through a light following device, the solar panel charges the battery pack through a constant-current charger, and the light following device is electrically connected with the battery pack; the electric heating defrosting module comprises an electric heating element laid on an outdoor finned evaporator of the air source heat pump; the electric heating element is electrically connected with the battery pack; the defrosting control module comprises a controller, a temperature sensor, a humidity sensor and a frost layer thickness sensor, and the temperature sensor, the humidity sensor and the frost layer thickness sensor are all in electric signal connection with the controller; the controller is in control connection with the electric heating element; and the controller is electrically connected with the battery pack.

Description

technical field [0001] The invention relates to the technical field of air source heat pumps, in particular to an air heat source pump automatic defrosting system. Background technique [0002] The air source heat pump system obtains a low temperature heat source through air heat storage, and becomes a high temperature heat source after the efficient heat collection and integration of the system, which is used for heating or supplying hot water. The unit does not need a cooling water system, and there is no environmental pollution caused by the use of boilers. The installation is convenient, the heat collection efficiency is high, the operation cost is low, and the operation is safe. At present, most of the winter heating in the Yangtze River Basin and the south of our country adopts the form of air source heat pump. [0003] When the air source heat pump operates under heating conditions, the evaporator will absorb heat from the outdoor air, causing the surface temperature ...

AI Technical Summary

Problems solved by technology

Not only that, the thickening of the frost layer also increases the resistance of the air flowing through the fins, reduces the air flow, and leads to the attenuation of the performance of the fan

These problems will not only cause the air source heat pump unit to not heat the room properly, but also cause the heat pump to not work properly or even be damaged.

[0004] Traditional air source heat pump outdoor unit defrosting devices have problems such as high energy consumption, high manufacturing difficulty, and low reliability. The purpose of this application is to propose an energy-saving, environmentally friendly, easy to install, safe and reliable air source heat pump outdoor unit automatic defrosting system

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