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Centrifugal blower and air cleaner with the same

A technology for centrifugal fans and air purifiers, which can be applied to machines/engines, heating methods, mechanical equipment, etc., and can solve the problems of reducing centrifugal fans, not considering noise, and user discomfort.

Inactive Publication Date: 2006-12-06
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, conventional centrifugal fans used in air purifiers are designed to overcome the resistance of the flow path and have the blowing ability to discharge the required amount of air
Therefore, the design of this centrifugal fan does not take into account the noise generated during rotation
Although noise is not directly related to the exhaust capacity of centrifugal fans, it can cause user discomfort and reduce the quality of products using centrifugal fans

Method used

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  • Centrifugal blower and air cleaner with the same
  • Centrifugal blower and air cleaner with the same
  • Centrifugal blower and air cleaner with the same

Examples

Experimental program
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Embodiment Construction

[0029] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0030] Hereinafter, a centrifugal fan and an air cleaner including the same according to the present invention are explained in detail with reference to the accompanying drawings.

[0031] Although there are many preferred embodiments in the present invention, the most preferred embodiment will be described.

[0032] First, a centrifugal fan according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. use with Figure 1-3 The same reference numerals denote the present invention and the same descriptions are omitted.

[0033] Figure 4A yes means image 3 The floor plan of the centrifugal fan, Figure 4B yes means image 3 side view of a centrifugal fan, and Figure 5 yes means image 3 A magnified view of the blade shown.

[0034] The blade 124b is fo...

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PUM

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Abstract

The invention relates to a centrifugal fan, comprising: disk fan plates and a plurality of blades vertically installed around fan plate with a constant space. Supposing the diameter of incircle connecting blade inside part is Di, and diameter of circumcircle connecting blade outside part is Do, the ratio between inner diameter and external diameter (Di / Do) is 0.76+- 0.3; the arch scheme of blade is double circle arc, the outlet angle of blade is 165degree+-10degree, and the number of blade is 41-49. The centrifugal fan carries out air blowing function and reduces noise, which improves comfortable degree for users.

Description

technical field [0001] The present invention relates to a centrifugal fan and an air cleaner having the same, and more particularly, to a centrifugal fan capable of improving user comfort by reducing noise generated during driving and an air cleaner having the same . Background technique [0002] Generally, a centrifugal fan is a device used to blow air by centrifugal force generated by rotating a drive motor mounted in a housing. [0003] figure 1 is a view representing an air cleaner that purifies the air by filtering dust and bacteria from the air using a centrifugal fan, and figure 2 is along figure 1 Cross-sectional view of the line II-II. [0004] As shown in the figure, the air cleaner includes: a housing 100 having a plurality of legs 110 spaced from the ground; a blower unit 120 installed in the housing 100 for introducing external air into the housing 100 and then forcing blowing outside air; and a filter unit 130 for filtering dust and bacteria in the air in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/30F04D17/08F24F3/16
CPCF04D29/283F04D29/30F04D29/668F05D2210/12F24F8/10Y10S415/00Y10S416/00Y10S417/00
Inventor 郑容奎郑文基
Owner LG ELECTRONICS INC
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