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Static-suction-type range hood fan volute

A range hood and fan technology, applied in the field of component structure, to achieve high efficiency, large air volume, and control of air volume loss

Active Publication Date: 2011-11-16
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: relative to the overall size of the fan volute of the static suction range hood, compress the lateral dimension of the fan volute, and optimize the design of each curvature radius of the fan volute to further reduce noise, Lower wind resistance and less air loss for better aero performance

Method used

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  • Static-suction-type range hood fan volute
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  • Static-suction-type range hood fan volute

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] Such as Figure 1 to Figure 7 As shown, it is a preferred embodiment of the present invention. The fan volute of the static suction range hood in this embodiment has a front cover 6, a rear cover 7 and an annular intermediate casing 11 connecting the two. ,Such as image 3 and Figure 4 As shown, the front cover 6 and the rear cover 7 are fastened to the middle housing 11 respectively. Except for the volute tongue, the middle housing 11 is perpendicular to the front cover 6 and the rear cover 7 . Front cover 6 and rear cover 7 are respectively provided with forward air hole 61 and rear air inlet 71, and the projection of the center of circle of forward air hole 61 on the plane where rear cover 7 is located coincides with the center of circle of rear air inlet 71. Between the lower edge of the front cover 6 and the lower edge of the ...

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Abstract

The invention discloses a static-suction-type range hood fan volute. The range hood fan volute is provided with a front cover plate, a rear cover plate and an annular middle shell connected with the front cover plate and the rear cover plate, wherein the front cover plate and the rear cover plate are respectively provided with a front air inlet and a rear air inlet, and the projection of the center of circle of the front air inlet on a plane in which the rear cover plate is positioned is coincided with the center of circle of the rear air inlet; and the middle shell at a volute tongue is of an asymmetric structure and is used for connecting the front cover plate with the rear cover plate in a continuous smooth-transitional manner, and the border outlines of the front side and rear side ofthe middle shell is optimized. The static-suction-type range hood fan volute provided by the invention has the advantages that the lateral dimension of the volute is compressed, the limitation to thelateral dimension of a range hood is overcome, and the noise is obviously reduced; and proven by repeated comparison tests, the optimized performance index can be as follows: when the air quantity is15m<3> / min and the wind pressure is 320 Pa, the noise is only 48dB.

Description

technical field [0001] The invention relates to the component structure of the range hood, in particular to the improvement of the fan volute of the static suction type range hood with double-side air intake. Background technique [0002] The range hood is one of the essential kitchen appliances in the family. 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 fume collection hood, a fan body (intake box) located above the fume collection hood and perpendicular to it, a fan volute, an impeller, and a motor for driving the impeller are installed in the fan body, wherein the fan volute includes the front The cover plate, the rear cover plate and the ring-shaped intermediate shell connecting the two. The middle shell is usually perpendicular to the front cover plate and the rear cover plate except for the volute tongue. There is an air inlet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20
Inventor 李斌胡荣伟董一龙茅忠群诸永定王军元
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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