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

Active Publication Date: 2022-03-18
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The noise reduction of the resonance cavity is mainly aimed at reducing the low-frequency noise of the airflow, but the high-frequency noise of the range hood is more prominent
The resonant cavity of this invention is set on the outer wall of the windshield, and the disadvantages are as follows: (1) There is no steady flow effect on the outflow gas of the fan system, and the high-frequency noise generated by the unstable air flow inside the range hood still exists; (2) The resonant cavity Installed on the outer wall, if there is a problem with the size design of the resonant cavity, the noise of the airflow hitting the outer wall will be amplified again; (3) The resonant cavity only has an effect on the low-frequency noise of the range hood

Method used

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

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Embodiment Construction

[0046] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions.

[0047] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element must have a particular orientation, be constructed, and operate in a particular orientatio...

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PUM

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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.

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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Application Information

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