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Range hood and control method thereof

A technology of a range hood and a control method, which is applied to the removal of range hood, heating methods, household stoves/stoves, etc., can solve the problems of being easily affected by ambient light, low precision, and poor user experience, so as to improve the cooking experience. Effect

Active Publication Date: 2022-04-19
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the above-mentioned prior art, the automatic control method is to compare the difference between the oil fume image and the smoke-free background image through the pressure or the concentration of the oil fume, and then increase the speed for adsorption after the oil fume diffuses out, which is a hysteresis control method. , the user experience is poor; in addition, the control method of image recognition is easily affected by ambient light, and in the environment of oily smoke for a long time, it is easy to fail, and the accuracy is not high, which is prone to misjudgment

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 1

[0040] see Figure 1 ~ Figure 3 , shows a cooking device, including a range hood 100 and a cooker 200, the range hood 100 is arranged above the cooker 200, and the range hood 100 is a top-suction range hood in this embodiment, including a smoke collecting hood 1 and The fan frame 2 arranged on the top of the smoke collecting hood 1, the fan frame 2 is used to set the fan 3 ( figure 1 not shown, see image 3 ). The above-mentioned smoke collecting hood 1, fan frame 2 and fan 3 constitute the body of the range hood. The air outlet on the fan frame 2 communicates with the public flue (not shown) through the exhaust pipe 4 . The cooker 200 is used to place a pot 300 for cooking.

[0041] A distance sensor 51 , an image sensor 52 and a microwave sensor 53 are arranged on the range hood 100 , such as the fume collecting hood 1 . The distance sensor 51 is used to collect the distance between itself and the pot 300 on the cooker 200 . The image sensor 52 includes an image acquis...

Embodiment 2

[0060] When not disturbed by the outside world, the suction force of the range hood at a fixed gear is stable, so the flow rate of the wind speed sensor on the side of the smoke collecting hood 1 is also stable. Inside the controller 56, there are two wind speed sensors at different fan 3 gears A range is set for each flow velocity at each level, which indicates the reasonable floating range of the flow velocity at the corresponding gear without external interference.

[0061] Take the first wind speed sensor 54 arranged on the left as an example, which detects the flow direction and flow velocity of the gas on the left side of the fume collecting hood 1. When the flow direction is opposite to the preset direction, it is strongly disturbed at this time, and the fan 3 is directly controlled to rise to the maximum. Gear position; when the flow direction is the same as the preset direction, it is judged whether the flow rate exceeds the set value of the flow rate; when the flow ra...

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Abstract

The invention discloses a range hood, which includes a range hood body, the range hood body includes a fan, and the range hood also includes a speed adjustment device for adjusting the speed of the fan, and is characterized in that: the speed adjustment The device includes a distance sensor for detecting the distance between itself and the bottom of the cooker placed on the stove below the range hood, an image sensor for collecting image information of the cooker, a microwave sensor for detecting whether there is user interference within the sensing range, and The first wind speed sensor and the second wind speed sensor for detecting whether there is an interfering air flow are arranged on the range hood body, and the first wind speed sensor and the second wind speed sensor are respectively located on the left and right sides of the range hood body. Also disclosed is a control method for the above range hood.

Description

technical field [0001] The invention relates to a cooking fume purification device, in particular to a range hood and a control method for the range hood. Background technique [0002] The range hood has become one of the indispensable kitchen appliances in modern families. It is installed above the kitchen stove, which can quickly suck away the waste burned by the stove and the harmful oil fume generated during the cooking process, and discharge it outside, reducing the Pollution, air purification, and anti-virus, anti-explosion safety guarantee function. [0003] The range hood uses the principle of fluid dynamics to work, sucks and exhausts the range hood through a centrifugal fan installed inside the range hood, and uses a filter to filter some grease particles. The centrifugal fan includes a volute, an impeller installed in the volute and a motor that drives the impeller to rotate. When the impeller rotates, a negative pressure suction is generated in the center of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24C15/20
CPCF24C15/2021
Inventor 梅梦磊
Owner NINGBO FOTILE KITCHEN WARE CO LTD