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Air-conditioning system, control method thereof, and outdoor unit of the air-conditioning system

A technology of air-conditioning system and control method, which is applied in the direction of air-conditioning system, control input related to air characteristics, space heating and ventilation control input, etc., which can solve the problems of complex structure and high cost of air-conditioning system, and reduce the transmission process and structure Simple, Reduced Complexity Effects

Active Publication Date: 2017-11-10
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-conditioning system, control method thereof, and outdoor unit of the air-conditioning system
  • Air-conditioning system, control method thereof, and outdoor unit of the air-conditioning system
  • Air-conditioning system, control method thereof, and outdoor unit of the air-conditioning system

Examples

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Embodiment 1

[0061] Such as 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 controls the refrigeration system according to the received mode selection command control signal and switch machine command control signal. Start and stop operation. Wherein, when the controller 21 receives the on / off signal, it delays for a certain period of time, such as S seconds, to prevent the outdoor unit 2 from starting and running due to misoperation by the customer, and to prevent the controller of the outdoor unit from misjudging. That is to say, after the controller receives the power-on / off command, it delays the power-on or power-off for a preset time such as S seconds.

[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...

Embodiment 2

[0069] Such as Figure 4 As shown, in the heating mode, the outdoor unit 2 is also 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 performs control according to the received mode selection instruction control signal and power on / off instruction control signal. On and off operation of the thermal system. Wherein, when the controller 21 receives the on / off signal, it delays for a certain period of time, such as S seconds, to prevent the outdoor unit 2 from starting and running due to misoperation by the customer, and to prevent the controller of the outdoor unit from misjudging.

[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 det...

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Abstract

The invention discloses a control method of an air conditioning system. The control method comprises the following steps: a working mode of the air conditioning system is obtained, and a variable frequency compressor of an outdoor unit of the air conditioning system is started according to the working mode; a target refrigerant saturation temperature is obtained; the variable frequency control is performed for the variable frequency compressor according to the target refrigerant saturation temperature; an operation time of the variable frequency compressor is obtained in the variable frequency control process of the variable frequency compressor; and when the operation time of the variable frequency compressor is longer than or equal to a fifth time threshold, and the variable frequency compressor is not stopped, the target refrigerant saturation temperature is adjusted according to a preset step length. The control method of the air conditioning system can perform the variable frequency control for the variable frequency compressor of the outdoor unit in independent of an indoor unit, so that the control parameter transmission process is shortened, the complexity of the air conditioning system is reduced, and the operation reliability of the air conditioning system is improved. The invention further discloses an outdoor unit of the air conditioning system and an air conditioning system having the outdoor unit of the air conditioning system.

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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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/00F24F1/08
CPCF24F1/08F24F11/30F24F11/56F24F11/62F24F11/65F24F11/70F24F2110/00F24F2110/40
Inventor 罗彬魏富党
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD