Method and device for defrosting control of air conditioner

A technology for air conditioners and refrigerants, which is applied in the control input of air characteristics, space heating and ventilation control input, heating and ventilation control systems, etc. The effect of widening the temperature range

Active Publication Date: 2019-01-29
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on this, it is necessary to provide an air conditioner that can reduce the number of times the air conditioner enters the four-way valve reversing defrosting operation in order to solve the problem that the air conditioner frequently enters the defrosting mode when it is running in the heating mode, which affects the heating capacity of the air conditioner. Method and device for device defrosting control

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  • Method and device for defrosting control of air conditioner
  • Method and device for defrosting control of air conditioner
  • Method and device for defrosting control of air conditioner

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Embodiment Construction

[0056] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following describes specific implementations of the air conditioner defrosting control method and device of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0057] The method and device for defrosting control of an air conditioner of the present invention are used for defrosting the outdoor heat exchanger of the air conditioner when the air conditioner is running in the heating mode, so as to ensure the heating effect of the air conditioner.

[0058] Such as figure 1 As shown, the method for defrosting control of an air conditioner in one of the embodiments includes the following steps:

[0059] S100: Detect and obtain outdoor ambient temperature.

[0060] Wherein, the outdoor ambient temperature ...

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Abstract

The invention discloses a method and a device for controlling defrosting of an air conditioner. The method comprises the following steps: detecting and obtaining outdoor environment temperature; detecting and obtaining first pipeline temperature of an outdoor heat exchanger; determining whether the outdoor environment temperature is greater than or equal to the outdoor environment temperature, continuing to determine whether the first pipeline temperature is greater than the first preset pipeline temperature when the outdoor environment temperature is greater than or equal to the preset outdoor environment temperature, increasing flow of a freezing medium in the air conditioner between the outdoor heat exchanger and an indoor heat exchanger when the first pipeline temperature is smaller than or equal to the first preset pipeline temperature, and defrosting the outdoor heat exchanger of the air conditioner. Through the method and the device for controlling defrosting of the air conditioner, the frequency for entering a four-way valve reversion defrosting mode is reduced; the continuous heating temperature zone is enlarged; the energy is saved.

Description

Technical field [0001] The invention relates to the technical field of air conditioners, and in particular to a method and device for defrosting control of an air conditioner. Background technique [0002] When the heat pump air conditioner is in heating operation, the outdoor heat exchanger acts as an evaporator, and the refrigerant exchanges heat with the outdoor air through the outdoor evaporator, and absorbs heat from the outdoor air. The refrigerant passing through the outdoor evaporator is evaporated and compressed by the compressor to form high temperature and high pressure refrigerant vapor, which enters the indoor heat exchanger. At this time, the indoor heat exchanger is used as a condenser, and the refrigerant is cooled in the condenser. Release heat, thereby raising the indoor temperature. [0003] However, due to the low heat exchange temperature used as an evaporator outdoors, water vapor in the surrounding air will condense into frost and adhere to the surface of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/42F24F11/64
CPCF24F11/30F24F11/42F24F2110/00F24F2110/10F24F2110/12F24F2140/20
Inventor 刘志孝颜圣绿邹大枢梁桂源
Owner GREE ELECTRIC APPLIANCES INC
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