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Fan volute structure with air inlets on double sides for European-style smoke exhaust ventilator

A range hood and air intake technology, which is applied in the field of component structure, to achieve the effects of preventing separation, high wind pressure, and reducing the total amount of noise

Active Publication Date: 2006-10-11
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design of the different curvature radii of the upper and lower shell edge contours of the fan volute at the volute tongue cannot be fully applied to the fan volute of the European range hood. For the fan volute of the European range hood that can enter the air from both sides, The radius of curvature needs to be redesigned

Method used

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  • Fan volute structure with air inlets on double sides for European-style smoke exhaust ventilator
  • Fan volute structure with air inlets on double sides for European-style smoke exhaust ventilator
  • Fan volute structure with air inlets on double sides for European-style smoke exhaust ventilator

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] Such as Figure 1 to Figure 5 As shown, the fan volute structure of the European-style range hood capable of double-sided air intake includes a front cover 1, a rear cover 2 and an annular intermediate casing 3 connecting the two. The front cover 1 and There are air inlets 11, 21 on the rear cover 2, and the front cover 1 and the rear cover 2 have an asymmetric structure at the volute tongue, while the middle housing 3 there is in a continuous and smooth transition. The twisted surface connects the two; the actual application state of the fan volute structure, see figure 1 and figure 2 , 4 is the fan cover, 5 is the impeller between the front cover 1 and the rear cover 2, and the motor 6 driving the impeller 5;

[0024] Such as Figure 6 and Figure 7 As shown, ① the edge profile of the front cover 1 is sequentially tangent and sm...

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Abstract

The invention discloses a wind engine volute of Europe-type kitchen ventilator, which can adsorb wind via two surfaces. Wherein, the front and back cover plates (1, 2) are both mounted with wind inlets (11, 21); the edge of front cover plate (1) is formed by a straight line (AB), several arcs (BC, CD, DE, EF, FG, GH) and straight lines (HJ, JA); the edge of back cover plate (2) is formed by a straight line (A'B'), several arcs (B'C, C'D', D'E', E'F', F'G, G'H'), and a straight line (H'A'); the ratio between the radius of edge (FG) at the volute tongue of front cover plate (1) and the edge radius of edge (G'H') at the volute tongue of back cover plate (2) is 7.3-18.5. Compared to present technique, the invention can generate a new noise source at the volute tongue, which is reverse to other noise, to be eliminated some.

Description

technical field [0001] The invention relates to a component structure of a range hood, in particular to a fan volute structure of a European-style range hood capable of double-sided air intake. Background technique [0002] Now, range hoods have become one of the essential kitchen appliances in ordinary families. At present, European-style range hoods are favored by more and more consumers because of their neat and light appearance and small footprint. European-style range hoods generally include a range hood cover, a fan cover located on the cover and perpendicular to it, a fan volute inside the fan cover, an impeller and a motor driving the impeller, wherein the fan volute includes a front cover and a rear cover. The plate and the ring-shaped intermediate shell connecting the two, the front cover is provided with an air inlet, the rear cover is provided with a motor, and the impeller is located between the front and rear cover. The biggest difference between the European-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20
Inventor 茅忠群
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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