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A kind of automatic control method of range hood based on capacitive sensor

A technology of capacitive sensors and range hoods, which is applied in the direction of oil fume removal, heating methods, household stoves/stoves, etc., can solve problems such as changes in plate capacitance values, achieve the effect of ensuring the elimination effect, reducing no-load power loss and noise pollution

Active Publication Date: 2018-12-25
顾林鹏
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is found in the prior art that when the oil fume passes through the electrodes of a pair of plate capacitors, the value of the plate capacitance will change

Method used

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  • A kind of automatic control method of range hood based on capacitive sensor

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Embodiment Construction

[0022] It can be seen from the prior art that the oil fume concentration and temperature change are directly proportional to the capacitance value of the capacitive sensor. The cooking steps unique to Chinese families are generally:

[0023] cooktop fire;

[0024] Heating the cooking oil, at this time, the oily fume is gradually generated, and the concentration of the oily fume is gradually increased;

[0025] Put the ingredients in the pot, and the concentration of oil fume will increase rapidly in a short time;

[0026] As the temperature of the ingredients gradually increases, the concentration of soot also gradually increases;

[0027] When the oil fume concentration reaches a certain value, it is in a stable state;

[0028] With the completion of food processing, the concentration of oil fume gradually decreases, and finally the oil fume completely dissipates.

[0029] The change of the oil fume concentration in the above cooking process is reflected by the relationsh...

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Abstract

The invention discloses a kitchen ventilator automatic control method based on a capacitive transducer. According to the kitchen ventilator automatic control method, by arranging the capacitive transducer in an oil fume channel, the capacitive transducer can detect the concentration variation of oily fume flowing through the capacitive transducer, the kitchen ventilator is controlled automatically to be powered on or off, and to change gears according to the variation of capacitance values. By adoption of the kitchen ventilator automatic control method, the oily fume discharging effect can be guaranteed, meanwhile, the no-load power loss and noise pollution of the kitchen ventilator are reduced, and pursuits for environment protection, noise reduction, energy saving, and intelligence of consumers are satisfied. In addition, self-learning is conducted according to the capacitance values in certain points of time, the kitchen ventilator can adapt to errors caused by influences of using environments on the capacitive transducer.

Description

technical field [0001] The invention belongs to the technical field of oil fume emission, in particular to an automatic control method for an oil fume machine based on a capacitive sensor. Background technique [0002] The range hood is a very common kitchen fume removal device. It forms a negative pressure zone in a certain space above the stove, sucks, filters, and purifies the fume gas in the room and then discharges it to the outside. At present, the common range hoods on the market can only operate at a preset gear with a fixed air volume. When the cooking mode changes, if the user fails to switch the gear in time, it will inevitably cause a large amount of oil fume to escape and pollute the indoor environment. , It is difficult to meet consumers' pursuit of green environmental protection, noise reduction, energy saving and intelligence. [0003] In order to ensure the effect of oil fume removal, it is necessary for the range hood to automatically perform up / down gears...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24C15/20
CPCF24C15/2021
Inventor 顾林鹏
Owner 顾林鹏
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