Air conditioner system, control method of air conditioner system and outdoor unit of air conditioner system

An air-conditioning system and control method technology, applied in the direction of control input involving air characteristics, space heating and ventilation control input, heating and ventilation control system, etc., can solve the problems of complex structure and high cost of the air-conditioning system, and reduce transmission process, increased operational reliability, and reduced complexity

Active Publication Date: 2015-07-22
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, it is necessary for the indoor unit to send corresponding signals to the outdoor unit in order to complete the control of each component in the outdoor unit, which makes the structure of the air conditioning system very complicated and expensive

Method used

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  • Air conditioner system, control method of air conditioner system and outdoor unit of air conditioner system
  • Air conditioner system, control method of air conditioner system and outdoor unit of air conditioner system
  • Air conditioner system, control method of air conditioner system and outdoor unit of air conditioner system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] like image 3 As shown, in the cooling mode, the outdoor unit 2 is equipped with a first pressure sensor 23 that detects the pressure value of the low-pressure side of the refrigerant, and the outdoor unit 2 performs cooling operation according to the received mode selection command control signal and power on / off command control signal.

[0062] And, if the indoor unit is started for the first time within the preset working cycle, the controller determines the target refrigerant saturation temperature Tes according to the current ambient temperature of the outdoor unit. For example, if the outdoor ambient temperature is between 30-35°C, the determined initial target The refrigerant saturation temperature is 6°C, the outdoor ambient temperature is between 35-40°C, the initial target refrigerant saturation temperature is 3°C, the outdoor ambient temperature is between 25-30°C, and the initial target refrigerant saturation temperature is 8°C . If the indoor unit is not s...

Embodiment 2

[0069] like Figure 4 As shown, in the heating mode, the outdoor unit 2 is equipped with a second pressure sensor 24 that detects the pressure value of the high-pressure side of the refrigerant, and the outdoor unit 2 operates according to the received mode selection instruction control signal and switch instruction control signal. .

[0070] And, if the indoor unit is started for the first time within the preset working cycle, the controller determines the target refrigerant saturation temperature Tcs according to the current ambient temperature of the outdoor unit. For example, if the outdoor ambient temperature is between 7-10°C, the determined initial target The refrigerant saturation temperature is 46°C.

[0071] Then the controller generates the current refrigerant saturation temperature Tc according to the second pressure detection signal generated by the second pressure sensor 24 , and then continuously performs PID adjustment on the current refrigerant saturation tem...

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Abstract

The invention provides an air conditioner system, a control method of the air conditioner system and an outdoor unit of the air conditioner system. The control method comprises the following steps that the working mode of the air conditioner system is acquired, and an inverter compressor is started according to the working mode; the target refrigerant saturation temperature is acquired; frequency conversion control is conducted on the inverter compressor according to the target refrigerant saturation temperature; in the frequency conversion control process, the running time of the inverter compressor and the start-up and shutdown frequency of the inverter compressor in a third preset time period are acquired; and the target refrigerant saturation temperature is adjusted according to a preset step length when the value of the running time is larger than or equal to a third time threshold value, the start-up and shutdown frequency of the inverter compressor in the third preset time period is larger than or equal to a second preset frequency threshold value, and the value of the target refrigerant saturation temperature is larger than or equal to a preset saturation temperature threshold value. The control method can conduct frequency conversion control over the inverter compressor of the outdoor unit in a mode of being independent of an indoor unit, the control parameter transmission process is shortened, the complexity of the air conditioner system is reduced, and the running reliability of the air conditioner system is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an air conditioning system control method, an outdoor unit of the air conditioning system, and an air conditioning system with the outdoor unit. Background technique [0002] With the continuous development of air conditioning technology, DC inverter air conditioners are becoming more and more popular in the market, and their sales are also increasing rapidly. At present, the frequency conversion air conditioners on the market all need to be installed together, and the indoor unit and the outdoor unit need special supporting communication methods to realize the control of the compressor of the outdoor unit. Therefore, the installation of indoor and outdoor units must be synchronized and matched. [0003] The structure of the existing inverter air conditioning system is as follows: Figure 1A As shown, the outdoor unit must receive a series of signals from the indoor uni...

Claims

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Application Information

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IPC IPC(8): F24F11/00F24F11/02
CPCF24F11/30F24F11/62F24F11/89F24F2110/00
Inventor 罗彬魏富党
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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