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Fan control method and device and air conditioning system

A technology for air-conditioning systems and fans, which is applied to air-conditioning systems, control inputs related to air characteristics, control inputs related to system states, etc. The effect of beat noise

Active Publication Date: 2019-06-21
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a method, device and air-conditioning system for controlling a fan, to at least solve the technical problem of beating noise when the operating frequency of the fan is controlled to change with the system pressure

Method used

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  • Fan control method and device and air conditioning system
  • Fan control method and device and air conditioning system
  • Fan control method and device and air conditioning system

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Embodiment 1

[0031] According to an embodiment of the present invention, an embodiment of a method for controlling a fan is provided. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and, although A logical order is shown in the flowcharts, but in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0032] Before describing the method for controlling the fan provided by the present application, the mechanism of the beating vibration phenomenon is firstly explained.

[0033] Among them, the two simple harmonic vibration signals are x 1 and x 2 , A 1 and A 2 are the amplitudes of the two vibration signals, ω 1 and ω 2 are the angular frequencies of the two vibration signals, and are the initial phases of the two vibration signals, and the composite signal of the two simple harmonic vibration sig...

Embodiment 2

[0081] According to an embodiment of the present invention, an embodiment of a device for controlling a fan is provided, wherein, image 3 It is a schematic structural diagram of a device for controlling a fan according to an embodiment of the present invention, such as image 3 As shown, the device includes: an acquisition module 301 , a first determination module 303 , a second determination module 305 and a control module 307 .

[0082] Among them, the obtaining module 301 is used to obtain the actual system pressure value of the air conditioning system; the first determination module 303 is used to determine the target operating frequency of the fan according to the actual system pressure value and the target system pressure value of the air conditioning system; the second determination module 305 , used to determine the actual operating frequency of the fan according to the target operating frequency of the fan and the operating frequency of the compressor; the control mo...

Embodiment 3

[0092] According to an embodiment of the present invention, an embodiment of an air conditioning system is provided, wherein the air conditioning system includes: a fan, a compressor, a detection device, and a processor.

[0093] Among them, the detection equipment is used to detect the actual system pressure value of the air conditioning system and the operating frequency of the compressor; the processor is used to determine the target operating frequency of the fan according to the actual system pressure value and the target system pressure value of the air conditioning system, and then according to the fan The target operating frequency of the compressor and the operating frequency of the compressor determine the actual operating frequency of the fan, and control the fan to run according to the actual operating frequency.

[0094] It can be seen from the above that the actual operating frequency of the fan is determined according to the system pressure of the fan and the ope...

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Abstract

The invention discloses a fan control method and device and an air conditioning system. The method comprises the steps that a practical system pressure value of the air conditioning system is obtained; a target operating frequency of a fan is determined according to the practical system pressure value and a target system pressure value of the air conditioning system; a practical operating frequency of the fan is determined according to the target operating frequency of the fan and an operating frequency of a compressor; and the fan is controlled to operate according to the practical operatingfrequency. By means of the fan control method and device and the air conditioning system, the technical problem of beat vibration noise existing when the operating frequency of the fan is controlled to change as the system pressure changes is solved.

Description

technical field [0001] The invention relates to the field of home appliance control, in particular to a method, device and air conditioning system for controlling a fan. Background technique [0002] The multi-connected air conditioning system has the advantages of high energy efficiency in operation and high seasonal energy efficiency, and is widely used in small and medium-sized buildings. At present, there are two main ways to control the fans of the side air multi-connected air conditioning system: [0003] The first control method takes into account the reliability of the unit and controls the high pressure of the system within a reasonable range. This control method mainly adjusts the system pressure through the frequency increase and decrease of the compressor. The control of the fan is relatively simple, and the operating frequency of the fan does not change much. However, the control precision of this control method is low, and the comfort of the unit is poor and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/30F24F11/77F24F11/64F24F1/40F24F13/24F24F140/10F24F110/10
CPCY02B30/70
Inventor 胡佳伟陈成何阿龙王晓妮何志超
Owner GREE ELECTRIC APPLIANCES INC
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