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Range hood and control method thereof

A range hood and control method technology, applied in the direction of removing oil fume, heating method, household stove/stove, etc., can solve the problems of poor air extraction, lax closing, local pressure increase, etc., so as to improve user experience, Avoid odor and fumes, the effect of fresh and natural air

Pending Publication Date: 2018-03-06
GREE ELECTRIC APPLIANCES INC
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  • Abstract
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  • Claims
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Problems solved by technology

Therefore, the range hood is not closed tightly due to the small closing force of the valve plate.
Because the range hood works in an environment full of oil pollution, after the valve plates are affected by the oil pollution and stick together, the opening is not in place, resulting in poor exhaust during the range hood, and the inadequacy of closing can easily cause the oil fume to flow back into the public flue
[0004] In addition, the air outlet check valve of the existing range hood has a ring gap between the valve plate and the valve body. This ring gap is similar to the gap at the hinge when the door is closed. When the neighbors around the user open When the range hood is working, the local pressure in the public flue increases, and the oil fume is poured into the user's home from the ring seam nearby, causing the user's home to smell of oil fume even if the kitchen is not cooking, and the user experience is not good

Method used

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

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Embodiment Construction

[0027] The present invention is described below based on the embodiments, and those skilled in the art should understand that the drawings provided here are for the purpose of illustration, and the drawings are not necessarily drawn to scale.

[0028] Unless the context clearly requires, throughout the specification and claims, "comprises", "comprises" and similar words should be interpreted in an inclusive sense rather than an exclusive or exhaustive meaning; that is, "including but not limited to" meaning.

[0029] The range hood in this application includes a detection device installed in the indoor flue. The detection device is connected to the control device. The detection device detects the gas state in the indoor flue when the fan is in the shutdown state. Control to prevent the gas in the public flue from pouring back into the indoor flue. In the present application, the fan is in the stop state, which includes two situations. One situation is that although the fan of...

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Abstract

The invention provides a range hood and a control method thereof. The range hood comprises an indoor flue, a control device and a fan, wherein a detection device connected with the control device is arranged in the indoor flue; the control device is used for controlling the fan according to detection results of the detection device when the fan is at a stop state. By adopting the range hood and the control method provided by the invention, cooking fume in a public flue is effectively prevented from flowing back into an indoor flue, a kitchen can be prevented from odor or cooking fume, fresh and natural air is ensured for the kitchen, and the user experience is improved.

Description

technical field [0001] The invention relates to the field of kitchen appliances, in particular to a range hood and a control method thereof. Background technique [0002] Kitchen fumes can have adverse effects on people's health, and range hoods can effectively improve the problem of kitchen fumes. Existing range hoods are generally provided with two lines of defense in order to prevent oil fumes from pouring back. First, the range hood itself has an air outlet check valve; [0003] Even so, there will still be odors in the kitchen. The main reason is that the air outlet check valve of the range hood itself and the pendant check valve installed at the flue opening rely on the wind force of the range hood to open the valve plate. The self-weight of the valve plate itself or an elastic piece is installed to close the valve plate. In order to ensure that the wind force of the range hood can blow open the valve plate, the weight of the valve plate or the elastic force of the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20
CPCF24C15/2021
Inventor 邓志敏李思成王大维周荣叶伟林王宏
Owner GREE ELECTRIC APPLIANCES INC
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