Air conditioner fan failure detection method and device

An air-conditioning fan and fault detection technology, which is applied in space heating and ventilation, space heating and ventilation control input, heating mode, etc., can solve problems such as inability to effectively detect air-conditioning indoor fan faults, and achieve the effect of preventing damage

Inactive Publication Date: 2016-04-20
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a fault detection method and device for an air-conditioning fan, aiming to solve the technical pr

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  • Air conditioner fan failure detection method and device
  • Air conditioner fan failure detection method and device
  • Air conditioner fan failure detection method and device

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[0045] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0046] The invention provides a fault detection method for an air conditioner fan.

[0047] Reference figure 1 , figure 1 It is a schematic flow chart of the first embodiment of the air-conditioning fan fault detection method of the present invention.

[0048] In this embodiment, the air conditioner fan failure detection method includes:

[0049] Step S10, recording the temperature of the fan coil when the state of the air conditioner fan changes, recorded as the changed temperature, and recording the temperature of the fan coil after the air conditioner fan changes state for a preset period of time, recorded as the continuous temperature;

[0050] During the cooling or heating process of the air conditioner, the air conditioner records the temperature of the indoor fan coil when the state of the indoor fan changes, which...

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Abstract

The invention discloses an air conditioner fan failure detection method. The method comprises the following steps: recording the temperature of a fan coil when the state of the air conditioner fan changes as the change temperature, and recording the temperature of the fan coil a preset time period after the state of the air conditioner fan changes as the continuous temperature; judging whether the temperature difference between the change temperature and continuous temperature is less than the preset temperature difference; and if so, judging that the air conditioner fan fails. The invention also discloses an air conditioner fan failure detection device. The method avoids long-time operation of the air conditioner when the fan fails, avoids the problems of overhigh temperature of the indoor fan coil, poor refrigerating effect or incapability of refrigeration, refrigerant reflux, diluted lubricating oil and the like due to the failure of the air conditioner fan, and prevents the air conditioner from being damaged due to the problem of the fan failure.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method and device for detecting a fault in an air conditioner fan. Background technique [0002] In the field of multi-connected central air-conditioning, the air-conditioning fan, as an important part of heat exchange, has an important impact on the evaporation and condensation of liquid in the air-conditioning system. However, under the current circumstances, there is a lack of effective fault detection, prediction and alarm methods for air-conditioning fans, especially indoor fans with hidden installation locations. How to detect the indoor fan is an important issue in the field of central air conditioning. [0003] Existing fault detection methods for air-conditioning indoor fans are usually only applicable to specific air-conditioning fans, such as DC-driven indoor fans, but most of the air-conditioning indoor fans on the market are AC-driven indoor fans, and eve...

Claims

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Application Information

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IPC IPC(8): F24F11/00
CPCF24F11/62F24F11/30F24F11/64F24F11/83F24F2110/10
Inventor 万永强许永锋熊美兵梁泽坤黄文
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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