An air outlet hood, a range hood with the air outlet hood and its control method

A technology for range hoods and air outlet hoods, which is applied in applications, oil fume removal, household stoves, etc. It can solve problems such as outstanding, no flow stabilization, and secondary amplified airflow, so as to achieve high-frequency noise reduction and sound absorption coefficient Good, the effect of reducing the number of contacts
CN111336558BActive Publication Date: 2022-03-18NINGBO FOTILE KITCHEN WARE CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
NINGBO FOTILE KITCHEN WARE CO LTD
Publication Date
2022-03-18

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Abstract

The invention discloses an air outlet cover, which comprises a hollow cover body and inlets and outlets respectively formed at both ends of the cover body, and is characterized in that: a deflector is arranged inside the cover, and the deflector extends from the inlet At the outlet, the deflector divides the space in the cover into independent first flow channels and second flow channels, and the two ends of each flow channel respectively pass through the inlet and outlet. Also disclosed are a range hood applied with the above-mentioned air outlet hood, a control method of the above-mentioned range hood, and a smoke exhaust pipe for connecting with the above-mentioned air outlet hood. By setting deflectors in the cover body of the air outlet hood, double air flow channels are formed inside the cover body, which can have good rectification and deceleration and boosting effects, reduce the contact times of sound waves with the outer wall of the cover, and reduce the radiation of the outer wall of the cover. noise.
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Description

technical field

[0001] The invention relates to a cooking fume purification device, in particular to an air outlet hood, a range hood using the air outlet hood, and a control method for the range hood. Background technique

[0002] Range hoods have become one of the indispensable kitchen appliances in modern families. 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 the fan, and the oil fume under the range hood is sucked into the fan, and after being accelerated by the fan, it is collected by the volute and guided out of the room.

[0003] The air outlet hood and smoke exhaust pipe of the range hood are the pipes t...

Claims

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