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Dry burning detection method of air conditioner and air conditioner

A detection method and air conditioner technology, which is applied to control input related to air characteristics, heating methods, space heating and ventilation, etc., and can solve problems such as inaccurate detection of dry burning of air conditioners

Active Publication Date: 2021-10-26
GREE ELECTRIC APPLIANCES INC
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  • Description
  • Claims
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Problems solved by technology

[0004] In view of this, the present invention discloses a dry-burning detection method of an air conditioner and an air conditioner to at least solve the problem of inaccurate dry-burning detection of an air conditioner

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  • Dry burning detection method of air conditioner and air conditioner

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Embodiment 1

[0045] Such as figure 1 As shown, this embodiment provides a detection method that can prevent the electric heater in the air conditioner from burning dry in the standby state. Specifically, a dry-burning detection method of an air conditioner is provided, the method comprising: collecting and recording the indoor ambient temperature and the temperature of the copper pipe pipeline of the air conditioner; combining the recorded indoor ambient temperature and pipeline temperature to obtain the temperature slope change value; determine the pipeline temperature change trend according to the temperature slope change value; when the pipeline temperature change trend is heating up, use the sliding window method to process the pipeline temperature and judge whether the air conditioner is dry.

[0046] The present invention improves the existing dry-burning detection method of the air conditioner, and uses the temperature-sensing package assembly of the existing air-conditioner to perf...

Embodiment 2

[0061] In this embodiment, an air conditioner is provided, and the air conditioner adopts any one of the dry-burning detection methods in Embodiment 1 to perform the dry-burning detection.

[0062] Combine below figure 1 , a specific detection process of the air conditioner in this embodiment is further described.

[0063] first step:

[0064] First judge whether the whole machine is in the standby state, if not in the standby state, directly jump to the end. In the standby mode, the main board of the air conditioner internal unit will collect and record the ambient temperature and the temperature of the temperature sensing package (the temperature sampling period is 2ms as an example);

[0065] The collected 200 environmental temperatures Te will be divided into Te according to the time a 、 Te b Two groups, each containing 100 data and summed to get The summed values ​​are then differenced and squared. At the same time, in order to avoid the value 0, 0.3 needs to be ad...

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Abstract

The invention discloses a dry burning detection method of an air conditioner and the air conditioner. The method comprises the steps that the indoor environment temperature and the air conditioner indoor unit copper pipe pipeline temperature are collected and recorded; a temperature slope change value is obtained in combination with the recorded indoor environment temperature and the recorded pipeline temperature; a pipeline temperature change trend is determined according to the temperature slope change value; and when the pipeline temperature change trend rises, a sliding window method is adopted for processing the pipeline temperature, and whether the air conditioner is subjected to dry burning or not is judged.

Description

technical field [0001] The invention relates to the technical field of air conditioner fault detection, in particular to a dry-burning detection method of an air conditioner and an air conditioner. Background technique [0002] At present, the electric heaters in household air conditioners on the market have no fault feedback. Once the auxiliary thermal relay fails, it cannot be disconnected normally, posing a major safety hazard. In the air-conditioning industry, the application of temperature-sensing devices is mainly to collect temperature values ​​for judging the operating status of equipment. [0003] If the temperature sensing package is used as the temperature value as the dry burning protection condition, it will be affected by the temperature drift of the temperature sensing element and the installation position, which may easily lead to false alarms. For example, when the model in the heating state is turned off and powered on quickly, and the ambient temperature ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/38F24F11/64F24F110/10
CPCF24F11/38F24F11/64F24F2110/10
Inventor 杨泽陈大名邓展威赖峥
Owner GREE ELECTRIC APPLIANCES INC
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