Filter screen blockage detection method and system and ventilation equipment
A technology for ventilating equipment and filter clogging, which is applied to mechanical equipment, etc., can solve the problem of high cost of filter clogging detection, and achieve the effect of saving detection costs
Inactive Publication Date: 2021-09-07
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2
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Problems solved by technology
[0004] The invention provides a method and system for detecting filter blockage, and ventilation equipment, which are used to solve the defect of high cost of filter blockage detection in the prior art, and realize whether the filter screen is blocked by a low-cost method
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[0034] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0035] Because the current method for detecting whether the filter screen of ventilation equipment is blocked is generally to determine whether the filter screen is blocked by detecting current, but the detection cost of this method is relatively high, and misjudgment often occurs.
[0036] Therefore, the present invention provides a filter clogging detection method. figure 1 It is a sc...
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The invention provides a filter screen blockage detection method and system and ventilation equipment. The method comprises the steps: controlling a guide plate of the ventilation equipment to run to a target position, controlling a motor of the ventilation equipment to run at a preset rotating speed; and if the airflow generated by a fan connected with the motor in an air duct of the ventilation equipment makes a sound of a first preset frequency, determining that the filter screen of the ventilation equipment is blocked. According to the method, equipment such as a sensor or a current plate does not need to be additionally installed to detect the current, the detection cost is saved, and too much dust accumulated on the filter screen will influence the sound made by the airflow generated in the air duct, therefore, the misjudgment rate of determining whether the filter screen is blocked or not by detecting whether the sound emitted by the airflow is the sound of the first preset frequency or not is also low.
Description
technical field [0001] The invention relates to the field of detection of ventilation equipment, in particular to a method and system for detecting clogging of a filter screen and ventilation equipment. Background technique [0002] With the improvement of people's living standards, ventilation equipment such as air conditioners and sterilizers are used more and more frequently in people's daily lives. However, after these ventilation equipment are used for a period of time, the filter screen will accumulate a large amount of dust, and the accumulated dust will cause the filter screen to be clogged. The clogged filter screen is easy to breed bacteria and will affect the normal operation of the ventilation equipment. use, endangering people's health. Therefore, it is necessary to regularly check whether the filter screen is clogged. [0003] At present, the method of detecting the blockage of the filter screen is to judge whether the filter screen is blocked by detecting th...
Claims
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IPC IPC(8): F24F11/39F24F11/64F24F11/61
CPCF24F11/39F24F11/64F24F11/61
Inventor 陈建龙张飞刘超超
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD