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Range hood and control method thereof

A range hood and oil fume technology, applied in the direction of oil fume removal, heating methods, household heating, etc., can solve problems such as fan misoperation, reduce the sensitivity of oil fume concentration, etc., and achieve the effects of avoiding misoperation, improving detection sensitivity, and removing interference factors

Active Publication Date: 2016-02-03
QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in this way, because it can only receive infrared rays that pass through the oil fume, it is easily interfered by external light such as natural sunlight, lights in the kitchen, lights installed on the range hood, etc., which reduces the sensitivity of the detection of oil fume concentration. Misoperation etc.

Method used

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  • Range hood and control method thereof
  • Range hood and control method thereof
  • Range hood and control method thereof

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0024] Such as figure 1 As shown, a range hood provided by the present invention includes a range hood body 1, a control device 2, a fan 3 and a smoke exhaust duct 4 are arranged in the range hood body 1, and the control device 2 is used for a control module with the fan 3 Connect to control the start-stop and speed of the fan 3, the fan 3 is installed in the smoke exhaust duct 4. When the user cooks, oil fume and water vapor will enter the range hood body 1 through the air inlet 5 and be discharged along the smoke exhaust duct 4 under the action of the fan 3 .

[0025] Such as figure 1 and figure 2 As shown, the range hood also includes an oil fume detection device for detecting the presence or absence of oil smoke and water vapor. In this embodiment, the oil fume detection device includes a high-power infrared transmitter 6 and two infrare...

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Abstract

The invention relates to a range hood and a control method thereof. The range hood comprises a range hood body. A control device, a draught fan and a lampblack detection device are arranged in the range hood body. The lampblack detection device comprises an infrared emitter and two infrared receivers. One infrared receiver and the infrared emitter are oppositely arranged on the two sides of an air inlet of the range hood body and used for acquiring infrared rays penetrating through lampblack. The other infrared receiver and the infrared emitter are installed on the same side and used for acquiring infrared rays which are blocked and reflected by lampblack. The infrared emitter and the infrared receivers are connected with the control device. The control device controls the rotating speed of the draught fan according to an infrared detection signal. According to the range hood and the control method thereof, the concentration of lampblack is determined through a difference comparison method, and then the rotating speed of the draught fan is controlled; the change of lampblack is independent of the change of ambient light and the like, existing interference factors are eliminated to the maximum extent, and the lampblack concentration detection precision is improved.

Description

technical field [0001] The invention relates to a range hood, in particular to a range hood with a function of detecting oil smoke and a control method thereof, belonging to the technical field of range hoods. Background technique [0002] At present, the start of the kitchen range hood is all started manually or by ignition of the gas stove, and the stop is closed manually or after a delay of a period of time after the stove is turned off. For the manual start-stop and speed regulation methods, it is often forgotten to turn on and off, especially when the time is tight, or the hands are stained with oil, and the operation fails or the oil gets on the operation panel of the hood. As for the way to control the start and stop of the cooker, the cooking fume is turned off by delaying for a period of time after the cooker is turned off. It has no direct relationship with whether there is any cooking fume left. The oil fume still remained, but the hood stopped. [0003] In orde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20
Inventor 王林光张丽武洪舟张培星韩健高士君刘衡
Owner QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD
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