Method for controlling motor output power of range hood

Abstract

The invention discloses a method for controlling motor output power of a range hood, comprising steps of: step A, initializing a system, entering the next step; step B, automatically controlling the motor output power. The step A further comprises steps of: step A1, controlling the motor output power to a preset value Pi, clearing the counter value r1 of sampling times and clearing the accumulated value c1 of the temperature value of a first air inlet; step A2, sampling the temperature value of the air inlet once at intervals of unit time t1. The size of the firepower of the cooker is sensed by sampling the temperature value of the air inlet of the range hood to regulate the motor output power without manual regulation from a user, so the method provides good use feeling, can overcome the defect that an air sensor is in failure due to cooking fume pollution, can automatically correct the reference temperature value for power regulation only by measuring the temperature at a single point, can reduce the manufacturing cost, and has the advantages of simple and reasonable structure, flexible operation, high reliability and wide application range.

Description

technical field [0001] The invention relates to a motor output power control method of a range hood. Background technique [0002] Range hoods are very popular in domestic households, but most of the adjustment methods for household range hood suction are still manual adjustment. During the cooking process, users need to adjust the gear of the range hood according to the heating power. Therefore bring inconvenience to the user. If the heating power is too large and the range hood works at a low position, the smoking effect will be poor; if the heating power is low and the range hood works at a high position, it will cause waste of electric energy. [0003] In order to solve the above-mentioned problems, someone proposed to use air detection to control the suction of the range hood. It uses an air sensor to detect the concentration of reducing gas produced in the cooking process to control the suction of the range hood. It must be in direct contact with the flue gas. After ...

AI Technical Summary

Problems solved by technology

[0002] Range hoods are very popular in domestic households, but most of the adjustment methods for household range hood suction are still manual adjustment. During the cooking process, users need to adjust the gear of the range hood according to the heating power. thus causing inconvenience to users

If the heating power is too high and the range hood works at a low position, the smoking effect will be poor; if the heating power is low and the range hood works at a high position, it will cause waste of electric energy

[0003] In order to solve the above-mentioned problems, someone proposed to use air detection to control the suction of the range hood. It uses an air sensor to detect the concentration of reducing gas produced in the cooking process to control the suction of the range hood. It must be in direct contact with the flue gas. After a period of use, the performance of the air sensor will decrease or fail due to the pollution of oil fume. On the other hand, due to the popularity of electric stoves in domestic households, there is little reducing gas produced when using electric stoves for cooking. Or no reducing gas is produced, at this time, the use of detecting reducing gas to realize automatic control will lose its effect

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