Range hood self-cleaning sensing device and control method thereof

Abstract

The invention discloses a control method of a range hood self-cleaning sensing device. The method comprises the following steps of S1, testing the inherent frequency and the amplitude of a range hood during initialization, and respectively recording the inherent frequency and the amplitude as f0 and s0; S2, closing the range hood, vibrating the range hood at a specific frequency, detecting the corresponding amplitude of the range hood, recording the specific frequency as f1, and recording the detected amplitude as s1; S3, comparing the modal amplitude data of s1 with the modal amplitude data of s0 to obtain the displacement amplitude of s1; S4, judging whether the displacement amplitude of s1 meets a preset condition; and S5, if yes, needing no cleaning, and if not, starting a self-cleaning function. According to the self-cleaning control method, a user can find an oil dirt condition of the range hood in time, automatic cleaning is achieved, a series of poor user experience caused by serious internal oil dirt is avoided, the good operation state of the range hood is maintained, and the service life of the range hood is prolonged.

Description

technical field [0001] The invention relates to the field of range hoods, in particular to a range hood self-cleaning sensing device and a control method thereof. Background technique [0002] The range hood is a household appliance that is often used in the kitchen. It is responsible for absorbing the kitchen fumes and then discharging the fumes into the atmosphere. When the range hood is working, a lot of fumes will adhere to the inside of the range hood. The impeller of the range hood fan , The outer wall and the bottom of the machine have too much oil, which affects the normal operation of the fan. The motor load of the range hood is overloaded, causing the range hood to heat up, the wires to short circuit, and the motor to be burned to cause a fire. Contents of the invention [0003] In order to overcome the shortcomings of the prior art, the object of the present invention is to provide a range hood self-cleaning sensing device and a control method thereof. [0004]...

AI Technical Summary

Problems solved by technology

[0002] The range hood is a household appliance that is often used in the kitchen. It is responsible for absorbing the kitchen fumes and then discharging the fumes into the atmosphere. When the range hood is working, a lot of fumes will adhere to the inside of the range hood. The impeller of the range hood fan , There is too much oil accumulated on the outer wall and the bottom of the machine, which affects the normal operation of the fan. The motor load of the range hood is too heavy, causing the range hood to heat up, the wires to short circuit, and the motor to be burned to cause a fire.

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