Refrigeration control method and device of air conditioner and air conditioner

A technology of refrigeration control and air conditioner, which is applied in the field of refrigeration control of air conditioners and air conditioners. It can solve problems affecting the reliability of compressors, liquid return, and poor oil return, etc., so as to improve user experience, widen the lower limit temperature, and increase the return rate. The effect of air pressure

Active Publication Date: 2020-03-24
NINGBO AUX ELECTRIC
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Problems solved by technology

[0002] At present, the application range of frequency conversion air conditioners is becoming wider and wider. In the existing technology, for special places such as computer rooms, forging workshops, communication base stations, bars, etc. Certain refrigeration effect, the lower limit of lo

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  • Refrigeration control method and device of air conditioner and air conditioner
  • Refrigeration control method and device of air conditioner and air conditioner

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[0029] At present, the application range of frequency conversion air conditioners is becoming wider and wider. In the existing technology, for special places such as computer rooms, forging workshops, communication base stations, bars, etc. A certain cooling effect, the lower limit of low-temperature cooling of existing inverter air conditioners is generally 5°C, below this lower limit of cooling due to the low pressure of the return air, it will cause poor liquid and oil return, which will affect the reliability of the compressor.

[0030] It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

[0031] In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] like figure 1 As ...

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Abstract

The invention provides a refrigeration control method and device of an air conditioner and the air conditioner. The air conditioner comprises bypass loop and a solenoid valve arranged on the bypass loop. The method comprises the following steps that when the air conditioner runs in a normal refrigeration mode or a dehumidification mode, the outdoor environment temperature, the air inlet temperature of a compressor and the coiled pipe temperature of an evaporator are acquired; and according to the outdoor environment temperature, the air inlet temperature and the coiled pipe temperature, the solenoid valve is controlled so as to achieve breakover of the bypass loop. According to the refrigeration control method of the air conditioner, the running condition of the air conditioner is judged according to the outdoor environment temperature, the air inlet temperature of the compressor and the coiled pipe temperature of the evaporator, the solenoid valve is controlled according to the outdoor environment temperature, the air inlet temperature of the compressor and the coiled pipe temperature of the evaporator so as to achieve breakover of the bypass loop, the air return temperature is improved, compressor reliability is guaranteed, the lower limit temperature of air conditioner refrigeration is widened, and the low-temperature refrigeration requirements of special occasions is met.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a refrigeration control method and device for an air conditioner and an air conditioner. Background technique [0002] At present, the application range of frequency conversion air conditioners is becoming wider and wider. In the existing technology, for special places such as computer rooms, forging workshops, communication base stations, bars, etc. A certain cooling effect, the lower limit of low-temperature cooling of existing inverter air conditioners is generally 5°C, below this lower limit of cooling due to the low pressure of the return air, it will cause poor liquid and oil return, which will affect the reliability of the compressor. Contents of the invention [0003] In view of this, the present invention aims to provide a refrigeration control method and device for an air conditioner, and an air conditioner, in order to solve at least one aspect of th...

Claims

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Application Information

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IPC IPC(8): F24F11/30F24F11/64F24F11/65F24F11/84F24F11/86F24F11/88F24F110/12
CPCF24F11/30F24F11/64F24F11/65F24F11/84F24F11/86F24F11/88F24F2110/12
Inventor 李海利左泽明张中强田涛杨明登来盼盼
Owner NINGBO AUX ELECTRIC
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