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Volute, fan and range hood

A volute, air intake technology, applied in the direction of machine/engine, mechanical equipment, oil fume removal, etc., can solve problems such as loud noise and reduce fan performance, and achieve the effect of suppressing separation flow, improving performance, and reducing noise

Active Publication Date: 2021-05-25
GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a volute, a fan and a hood to solve the technical problems in the prior art that the airflow collides with the bottom of the volute of the fan during the working process of the hood to reduce the performance of the fan and generate relatively large noise

Method used

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  • Volute, fan and range hood
  • Volute, fan and range hood
  • Volute, fan and range hood

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] The terms "first" and "second" in this application are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. Furthermore, the terms "include" and "have", as well as any variations there...

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Abstract

The invention discloses a volute, volute side plate, a fan and a range hood. The volute comprises a surrounding plate, two side plates and a protruding piece, wherein the two side plates cover the two sides of the surrounding plate respectively, a first air outlet is defined between the two side plates and the surrounding plate, a first air inlet is formed in at least one side plate to serve as an air inlet side plate, the protruding piece is arranged on the outer surface of the air inlet side plate, and the thickness of the protruding piece in the air inlet direction of airflow passing through the first air inlet is increased and then decreased in the direction from the side plate edge, connected with the surrounding plate, of the air inlet side plate to the first air inlet so that the airflow flowing to the first air inlet can be guided, the process that airflow flows to the first air inlet can be milder, generation of separated flow of the airflow on the edge of the volute is restrained, collision of the airflow to the bottom of the volute is reduced, therefore, resistance borne by the airflow in the flowing process is reduced, noise generated by collision of the airflow and the volute is reduced, and the performance of the fan is better improved.

Description

technical field [0001] The invention relates to the technical field of kitchen appliances, in particular to a volute, a fan and a hood. Background technique [0002] As a kitchen appliance with high frequency of use in the kitchen, the performance of the hood directly affects the user's operating environment, such as noise problems. As the core component of the hood, the fan is also the main source of noise, and its performance will directly affect the smoking effect of the hood. [0003] The inventors of the present application have found in long-term research and development that the centrifugal fan is currently the most commonly used fan in hoods. When it is inside the casing, it will collide with the bottom of the volute, and then enter the volute, and the flow loss will be caused during the collision process, and a flow separation zone will be formed at the edge of the volute, thereby reducing the performance of the centrifugal fan and causing relatively high loud noi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/44F04D29/66F04D29/68F24C15/20
CPCF04D29/441F04D29/663F04D29/667F04D29/681F24C15/20
Inventor 姚杨谢川川周慧慧
Owner GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD
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