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Low-wind-resistance volute and range hood

A technology of volute and wind resistance, which is applied in the direction of removing oil fume, mechanical equipment, machines/engines, etc., and can solve problems such as excessive exit speed

Pending Publication Date: 2021-11-26
HANGZHOU ROBAM APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the traditional desktop range hood, when the airflow flows in the volute, as the flow area of ​​the volute increases, the flow velocity decreases and the static pressure increases, but the outlet velocity is still too large

Method used

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  • Low-wind-resistance volute and range hood
  • Low-wind-resistance volute and range hood
  • Low-wind-resistance volute and range hood

Examples

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Embodiment Construction

[0054] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0055] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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PUM

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Abstract

The invention provides a low-wind-resistance volute and a range hood, and relates to the technical field of kitchen appliances. The low-wind-resistance volute comprises a volute body and a volute tongue formed on the volute body; the volute body forms a divergent section with gradually increased caliber at the fluid outlet; the included angle between the molded line of the divergent section and the horizontal direction is a1, and a1 is smaller than theta1; wherein theta1 is a diffusion angle close to one side of the volute tongue when the molded line of the divergent section is a straight line. The technical problem that in the prior art, the aerodynamic performance loss of the volute is large is solved.

Description

technical field [0001] The invention relates to the technical field of kitchen appliances, in particular to a low wind resistance volute and a range hood. Background technique [0002] When choosing cooking methods such as barbecue and hot pot, in order to avoid the escaping oily fumes from adhering to furniture and clothes, a desktop range hood can be used to absorb the oily fumes, so as to purify the air and improve the quality of meals. Compared with traditional purifiers and purification lamps, desktop range hoods can purify oil fumes in a more timely and effective manner. [0003] In the traditional desktop range hood, when the airflow flows in the volute, as the flow area of ​​the volute increases, the flow velocity decreases and the static pressure increases, but the outlet velocity is still too high. In order to further reduce the exit velocity, thereby reducing the noise, a section of diffuser pipe is usually added after the exit of the volute. Specifically, the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42F04D29/44F04D29/66F24C15/20
CPCF04D29/4226F04D29/4233F04D29/441F04D29/667F24C15/20
Inventor 任富佳温俊生黄禄英李智宝于巍巍周海昕
Owner HANGZHOU ROBAM APPLIANCES CO LTD
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