Intelligent extractor hood and control method thereof

Abstract

Provided are an intelligent extractor hood and a control method thereof. The intelligent extractor comprises a machine shell, a fan located in the machine shell, an exhaust fume collecting hood located below the machine shell and an exhaust fume guide plate arranged below the exhaust fume collecting hood; and a push rod mechanism for driving the exhaust fume guide plate to ascend and descend is installed inside the machine shell. The intelligent extractor hood is characterized by further comprising a controller and a sensor for detecting the cooking fume and / or vapor concentration inside or outside the machine shell, the signal output end of the sensor is in electric signal connection with the signal input end of the controller, and the controller controls the rotation speed of a fan motorand the lifting position of the exhaust fume guide plate according to a received output signal of the sensor. In the working process, the sensor senses the cooking fume and / or vapor concentration inside or outside the machine shell, the controller can adjust the rotation speed of the fan motor automatically according to the output signal of the sensor in order to make the air volume of the fan bematched with the working condition of the extractor hood in real time, and the controller can further adjust the air intake area and the distance between a negative pressure area and a fume source automatically by ascending or descending the exhaust fume guide plate to adapt to change of the working conditions.

Description

technical field [0001] The invention relates to a range hood, in particular to an intelligent range hood and a control method thereof. Background technique [0002] Existing range hoods generally only have two or three air volume keys. When the motor speed is set, the motor will not adjust the air volume and pressure of the range hood according to the actual kitchen environment or cooking method, so that it can adapt to the current situation at any time. And in the most reasonable working condition. Moreover, the cooking fume and water vapor produced during the cooking process change at any time. The existing range hoods will not actively detect this change, and cannot adjust the motor speed at any time to change the air volume to adapt, but can only manually press the button to continuously Switching is not only not convenient enough to operate, but also not energy-saving and environmentally friendly. For example, the Chinese Invention Patent No. 201210036643.2 (authorize...

AI Technical Summary

Problems solved by technology

[0002] Existing range hoods generally only have two or three air volume keys. When the motor speed is set, the motor will not adjust the air volume and pressure of the range hood according to the actual kitchen environment or cooking method, so that it can adapt to the current situation at any time. and in the most reasonable working condition

Moreover, the cooking fume and water vapor produced during the cooking process change at any time. The existing range hoods will not actively detect this change, and cannot adjust the motor speed at any time to change the air volume to adapt, but can only manually press the button to continuously Switching is not only not convenient enough to operate, but also not energy-saving and environmentally friendly.

For example, the Chinese Invention Patent No. 201210036643.2 (authorized announcement No. CN 102538046B) discloses the "range hood with self-adaptive adjustment of fan speed", the range hood can only adjust the fan speed according to the resistance of the air outlet To compensate the air volume, instead of adjusting the motor output according to the oil fume and water vapor concentration at the air outlet

[0003] In addition, although a range hood with a smoke deflector is disclosed in the prior art, such as the "European range hood with automatic smoke guide" disclosed in the Chinese invention patent application with the application number 201610029797.7 (the application publication number is CN 105423395A). However, the smoke deflector of the range hood only moves up and down when the range hood is turned on and off. When the range hood is turned on, the smoke guide sinks and the air inlet of the range hood opens; the range hood When closed, the smoke deflector rises and the air inlet of the range hood is closed

It can be seen that the lifting movement of the smoke guide plate of the range hood does not consider the change of the working conditions of the range hood, that is, the lifting position of the smoke guide plate cannot be adjusted in real time according to the concentration of oil fume and water vapor. It can be seen that the adjustment function of the smoke guide plate is relatively simple

In addition, the driving mechanism of the smoke deflector of the range hood does not take into account the pollution of the fume environment. It is difficult for the smoke plate to move up and down smoothly, and at the same time, it will also reduce the service life of the driving mechanism

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