A method for identifying the performance failure of the check valve of range hood

Abstract

The invention relates to a method for identifying performance failures of a check valve of a range hood, which is used for a range hood equipped with a check valve at the air outlet, and a controller is also provided in the range hood, and is characterized in that: The air volume sensor of the air volume inside the range hood; the first pressure sensor, the second pressure sensor and the angle sensor are set; the air volume sensor, the first pressure sensor, the second pressure sensor and the angle sensor are all electrically connected to the controller; The internal and external wind pressure of the hood and the air volume entering the range hood, and at the same time detect the opening angle of the shrapnel of the check valve to identify whether the check valve is faulty. Compared with the prior art, the present invention has the advantages of being able to intelligently identify whether the non-return valve is faulty, improving fault diagnosis efficiency, enabling users to understand the cause of faults, and timely troubleshooting; it can also reduce the probability of on-site technical services and save manpower and material resources.

Description

technical field [0001] The invention relates to a method for identifying performance failures of a check valve of a range hood. Background technique [0002] For range hoods with external exhaust fumes, an air outlet cover and a check valve need to be installed at the air outlet. During the actual use of this type of range hood, there will be phenomena such as the fume cannot be discharged, and the smoke will fall. After investigation, it is found that many reasons for this phenomenon are that the return valve shrapnel of the check valve is stuck and cannot work normally, so that it cannot be opened or closed tightly. When this kind of phenomenon occurs, the existing treatment method is that the master of the technician will come to the door for testing and maintenance, and the shrapnel of the check valve will be pushed aside. However, this method will cause users to question the product, and users are often unable to judge what caused the cause, resulting in a decrease in...

AI Technical Summary

Problems solved by technology

However, this method will cause users to question the product, and users often cannot judge what caused it, resulting in a decrease in user trust

However, it takes time for technicians to provide door-to-door service, and within a certain period of time, it not only affects the normal use of users, but also causes a waste of manpower and material resources.

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