Heat pump air conditioner capable of being defrosted intelligently and computer-readable storage medium of heat pump air conditioner

Abstract

The invention relates to a heat pump air conditioner capable of being defrosted intelligently and a computer-readable storage medium of the heat pump air conditioner. The medium is implemented by a computer program which is memorized on a memorizer and can run on a processor, and the implemention comprises the following steps that after the air conditioner is heated for a period of time, a compressor is controlled to convey a high-temperature and high-pressure refrigerant to an outdoor heat exchanger so as to carry out defrosting on the outdoor heat exchanger; if the duration for the defrosting process is shorter than preset duration, the frosting rate of the shell of an evaporator of the outdoor heat exchanger is judged to be lower than pre-estimated speed, then the timing for carrying out the next-time defrosting is postponed, and after enough frost is accumulated on the shell of the evaporator, the defrosting with the specified duration is carried out to enable the specified duration of the defrosting to be corresponding to the frosting amount to be minimized, so that the waste of heat energy is avoided; and if the duration of the defrosting process is longer than the preset duration, the frosting rate of the shell of the evaporator is judged to be higher than the pre-estimated speed, then the timing for carrying out the next-time defrosting is advanced to reduce the frosting amount on the shell of the evaporator, so that the phenomenon that the defrosting is incomplete in the next defrosting process is avoided.

Description

technical field [0001] The invention relates to a heat pump air conditioner capable of intelligent defrosting, and its computer-readable storage medium, which is implemented by a computer program stored in a memory and operable on a processor. Background technique [0002] When the air source heat pump type air conditioner is heating in winter (that is, the compressor sends high-temperature and high-pressure refrigerant to the indoor heat exchanger), the surface temperature of the outdoor heat exchanger will reach below zero, resulting in the evaporator surface of the outdoor heat exchanger being condensed. Frost, the thick frost layer formed by frost will block the air flow of the outdoor heat exchanger of the air conditioner, which will affect the heating capacity of the entire air conditioner. The heat exchanger supplies heat to defrost the outdoor heat exchanger. [0003] However, the defrosting methods of the existing air source heat pump air conditioners all use perio...

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Problems solved by technology

[0003] However, the defrosting methods of the existing air source heat pump air conditioners all use periodic defrosting, which has the disadvantage that it cannot be changed according to the actual situation, resulting in continuing to control the compressor to supply heat to the outdoor heat exchanger after the defrosting is completed. The phenomenon of defrosting or the phenomenon of quitting defrosting in advance before the defrosting is completed, the former causes waste of heat energy, and the latter leads to incomplete defrosting

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