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Filter screen cleanliness detection device, method and system and air treatment device

A detection device and air treatment technology, applied in mechanical equipment, lighting and heating equipment, heating and ventilation control systems, etc., can solve problems such as energy waste, light source being susceptible to dust, and reducing air output from air conditioners.

Pending Publication Date: 2020-10-30
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The filter in the air conditioner has the function of filtering dust and preventing pollution inside the air conditioner. After the filter is dusty, it may reduce the air output of the air conditioner and affect the cooling capacity of the air conditioner. If the air output of the system remains unchanged, the two sides of the filter will The pressure difference will become larger, and at the same time, it is easy to breed bacteria, which will have a certain impact on indoor air quality, resulting in waste of energy and threats to the health of users
At present, most air conditioners have an automatic reminder function for filter dirty and clogged. This reminder function is to detect the dirty and clogged condition of the air conditioner filter by judging the use time of the air conditioner. However, this detection environment depends on the influence of the indoor environment. Accuracy has a greater impact; there is another type of air conditioner that uses wind speed sensing to detect the wind speed blown out of the filter to judge dirty blockage. Because the air conditioner is affected by environmental factors and its own system during operation, it is prone to uneven wind speed, which often leads to inaccurate judgments. ; There is also a type of detection of dirty clogging detected by the filter by detecting the accumulated cleaning time of the air conditioner filter and inferring the concentration of particulate matter in the room. Particle concentration, so this detection method is greatly affected by the indoor environment, resulting in a decrease in detection accuracy; there is another type of use of infrared transmitters and infrared receivers, because the infrared light source currently used is mainly LED, because the LED itself has a light source that is easily affected The limitation of the influence of dust is easy to cause the detection accuracy to decrease

Method used

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  • Filter screen cleanliness detection device, method and system and air treatment device
  • Filter screen cleanliness detection device, method and system and air treatment device
  • Filter screen cleanliness detection device, method and system and air treatment device

Examples

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Embodiment 1

[0055] Such as Figure 1 to Figure 3As shown, the present invention provides a filter screen cleanliness detection device, which is applied to air treatment equipment, the air duct 12 of the air treatment equipment runs through the filter screen, and the detection device includes a The detection air duct of the air duct 12 ; a first temperature sensor 13 , a heating element 14 and a second temperature sensor 15 are sequentially arranged in the detection air duct according to the air flow direction.

[0056] By setting a separate detection air duct, it can avoid being affected by environmental factors and its own system, and is not affected by the operating environment of the air handling equipment, effectively improving the detection accuracy of the detection device, and will not affect the sealing of the air duct 12 performance; by setting two temperature sensors and the heating element 14 between them, the change of the temperature difference formed after the air flow passes...

Embodiment 2

[0072] Such as Figure 4 As shown, based on the same inventive concept, the present invention provides a method for detecting the cleanliness of a filter screen, the detection method comprising the following steps: S1: Obtain the first temperature sensed by the first temperature sensor 13 and the temperature sensed by the second temperature sensor 15 Detected second temperature; S2: Calculate the real-time difference between the first temperature and the second temperature, compare the real-time difference with the preset difference and determine the cleanliness of the filter according to the comparison result; S3: store the filter cleanliness.

[0073] The first temperature sensor 13 is before the heating element 14, the second temperature sensor 15 is behind the heating element 14, and under the effect of the air flow and the heating element 14, the temperature sensed by the second temperature sensor 15 is higher than that of the first temperature sensor 13. The temperature...

Embodiment 3

[0092] Based on the same idea of ​​the invention, the present invention also provides a filter screen cleanliness detection system, the detection system includes a processor and a memory; the processor is used to execute the detection program stored in the memory to realize the detection method.

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Abstract

The invention relates to a filter screen cleanliness detection device, method and system and an air treatment device. An air duct of the air treatment device penetrates through a filter screen, and the detection device comprises a detection air duct which communicates with the air duct and is connected to the air duct in parallel; and a first temperature sensor, a heating piece and a second temperature sensor are sequentially arranged in the detection air duct in the air flowing direction. According to the filter screen cleanliness detection device, method and system and the air treatment device, by arranging the independent detection air duct, the influence of environmental factors and a self-system can be avoided, and the influence of the operating environment of the air treatment deviceis avoided, so that the detection accuracy of the detection device is effectively improved, and the sealing performance of the air duct cannot be influenced; and by arranging the two temperature sensors and the heating piece between the two temperature sensors, whether the filth blockage occurs or not and the filth blockage degree are judged according to the change of the temperature difference formed after airflow passes through the heating piece, so that and the precision and accuracy of cleanliness detection are greatly improved.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a filter screen cleanliness detection device, method, system and air treatment equipment. Background technique [0002] In recent years, more and more air conditioners have appeared in people's living environment, and their frequency of use has also increased significantly. The filter in the air conditioner has the function of filtering dust and preventing pollution inside the air conditioner. After the filter is dusty, it may reduce the air output of the air conditioner and affect the cooling capacity of the air conditioner. If the air output of the system remains unchanged, the two sides of the filter will The pressure difference will become larger, and at the same time, it is easy to breed bacteria, which will have a certain impact on indoor air quality, resulting in waste of energy and threats to the health of users. At present, most air conditioners have an aut...

Claims

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Application Information

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IPC IPC(8): F24F11/39F24F11/89F24F11/64F24F11/526F24F11/52
CPCF24F11/39F24F11/89F24F11/64F24F11/526F24F11/52
Inventor 唐楚强刘光有杨会敏周永志柳烨
Owner GREE ELECTRIC APPLIANCES INC