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a range hood

A technology for range hoods and fan racks. It is applied in the direction of removing oil fumes, mechanical equipment, machines/engines, etc. It can solve problems such as noise, abnormal sound, vibration that cannot be improved, and motors obstructing the air inlet, so as to avoid obstructing the air intake, The effect of uniform force and reduced vibration

Active Publication Date: 2021-10-29
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of fan system puts the motor in the middle, and the two impellers are placed parallel to the two sides, which solves the problem of the motor blocking the air inlet, but it does not improve the noise, abnormal sound and vibration.

Method used

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Embodiment Construction

[0017] 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.

[0018] 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 a range hood, which comprises a fan frame and a fan system arranged in the fan frame. The fan system includes a first volute and a second volute arranged side by side. A first air inlet is formed, and a second air inlet is formed on the second volute. The first air inlet faces to the left, and the second air inlet faces to the right. It is characterized in that: the first air inlet is formed by The front to the rear is gradually inclined to the left, and the second air inlet is gradually inclined to the right from the front to the rear, so that there is an included angle between the first air inlet and the second air inlet. Compared with the prior art, the present invention has the advantages of pulling the oil fume on the front side to the rear side to realize uniform distribution of the flow field on the front and rear sides, so that the oil fume accumulated on the front side has a slower flow rate than that placed in parallel (thus It can reduce noise and abnormal sound), and the narrow state of the rear makes the capture ability of the rear side of each air inlet stronger, improves the longitudinal balance, and the force is more uniform, reducing vibration.

Description

technical field [0001] The invention relates to a cooking fume purifying device, in particular to a 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] In the range hood in the form of an upper fan, there are mainly two types of air intake of the fan system currently used, one-side air intake and two-side air intake....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24C15/20F04D25/16F04D29/42F04D29/66
CPCF04D25/166F04D29/4226F04D29/661F04D29/662F04D29/665F24C15/20
Inventor 王登强田涛茅忠群诸永定
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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