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Centrifugal fan and kitchen ventilator

A centrifugal fan and distance technology, which is applied in the direction of removing oil fume, machines/engines, mechanical equipment, etc., can solve the problem of low maximum static pressure of centrifugal fans, and achieve the effect of increasing the maximum static pressure

Inactive Publication Date: 2016-07-20
ZHEJIANG SUPOR ELECTRICAL APPLIANCES MFG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a kind of centrifugal fan and range hood, to solve the problem that the maximum static pressure of the centrifugal fan of range hood in the prior art is low

Method used

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  • Centrifugal fan and kitchen ventilator
  • Centrifugal fan and kitchen ventilator
  • Centrifugal fan and kitchen ventilator

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Embodiment Construction

[0030] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0031] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0032] In the present invention, in the absence of a contrary statement, the used orientation words such as "up and down" usually refer to the direction shown in the drawings, or refer to the vertical, vertical or gravity direction Similarly, for ease of understanding and description, "inside and outside" refer to inside and outside relative to the out...

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Abstract

The invention provides a centrifugal fan and a kitchen ventilator. The centrifugal fan comprises a spiral case and an impeller, and the impeller is arranged inside the spiral case; the centrifugal fan further comprises a motor, and the motor drives the impeller to rotate; the spiral case is provided with a cavity, and a spiral case coaming plate, a spiral case front plate and a spiral case rear plate jointly define the cavity; and the spiral case coaming plate is provided with a first segment, a second segment and a third segment which are connected with one another, wherein the second segment is a spiral tongue segment in a cambered-surface shape, and the circular arc radius (r) of the spiral tongue segment is greater than or equal to 4.5 millimeters and less than or equal to 15 millimeters. By means of the centrifugal fan and the kitchen ventilator, the problem that in the prior art, a centrifugal fan of a kitchen ventilator is low in maximum static pressure is solved.

Description

technical field [0001] The invention relates to the technical field of range hoods, in particular to a centrifugal fan and a range hood. Background technique [0002] In the existing technical field of range hoods, in order to meet the needs of high-rise residential users, the smoking effect of range hoods needs to be improved urgently. At present, there are usually two ways to improve the smoking effect of range hoods: [0003] One way is to increase the exhaust air volume of the centrifugal fan of the range hood, and the other way is to increase the maximum static pressure of the centrifugal fan of the range hood. [0004] The technology of increasing the exhaust air volume of the centrifugal fan is relatively mature, but while improving the smoking effect in this way, it will inevitably increase energy consumption. And the technology of improving the smoking effect of the range hood by increasing the maximum static pressure of the centrifugal fan is still immature. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/06F04D29/30F04D29/42F04D29/44F24C15/20
CPCF04D25/06F04D29/30F04D29/4233F04D29/444F05D2240/12F05D2240/14F05D2240/30F24C15/20
Inventor 谭朝辉戴安定
Owner ZHEJIANG SUPOR ELECTRICAL APPLIANCES MFG CO LTD
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