Air conditioner defrosting control method

A control method and air conditioner technology, applied to heating and ventilation control systems, refrigerators, refrigeration components, etc., can solve problems such as low efficiency and single defrosting process
CN110836475AActive Publication Date: 2020-02-25QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Publication Date
2020-02-25

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner defrosting control method. In order to improve the defrosting effect of an air conditioner, the air conditioner defrosting control method aims at the air conditioner with a bypass defrosting circuit. The method includes the following steps of controlling an outdoor fan to stop rotatingand opening the bypass defrosting circuit when the air conditioner needs to enter a defrosting mode, controlling the outdoor fan to rotate backwards for second set time after the outdoor fan stops rotating for first set time, selectively controlling the outdoor fan to rotate backwards again for second set time according to the currents of the outdoor fan after the outdoor fan rotates backwards forsecond set time, closing the bypass defrosting circuit when the outdoor fan rotates backwards, and opening the bypass defrosting circuit preset time later after the outdoor fan rotates backwards forsecond set time. The backwards-rotating moment of the outdoor fan can be more precisely controlled, the back flushing frequency of the outdoor fan is reduced, and the defrosting efficiency of the airconditioner is greatly improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of air conditioners, and in particular relates to an air conditioner defrosting control method. Background technique

[0002] As a device that can adjust the indoor ambient temperature, the air conditioner works on the principle that the indoor ambient temperature is reduced or increased by the refrigerant passing through the circulation pipeline through high-pressure / low-pressure / gas / liquid state transitions, that is, from From the perspective of the indoor unit, the air conditioner is in cooling or heating mode. When the air conditioner is in heating operation, if the temperature of the outdoor coil is too low under certain humidity conditions, it will cause frosting, and the frosting of the outdoor coil will reduce the heat exchange efficiency of the outdoor heat exchanger and affect the cooling performance of the air conditioner. The thermal effect reduces the comfort of the indoor environment and affec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More