Impeller, fan apparatus using the same, and method of manufacturing impeller

A technology of impellers and blades, which is applied to components of pumping devices for elastic fluids, pump devices, non-variable pumps, etc., and can solve problems such as increased noise levels and degradation of static pressure characteristics

Active Publication Date: 2012-06-13
JAPAN SERVO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This phenomenon manifests itself most prominently in the fluctuation range, resulting in deterioration of the static pressure characteristics and an increase in the noise level in the fluctuation range

Method used

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  • Impeller, fan apparatus using the same, and method of manufacturing impeller
  • Impeller, fan apparatus using the same, and method of manufacturing impeller
  • Impeller, fan apparatus using the same, and method of manufacturing impeller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] 1. First preferred embodiment

[0032] figure 1 is a plan view of the impeller 1 according to the first preferred embodiment of the present invention seen from the inlet side along the central axis 17 . figure 2 is like figure 1 A side view of the impeller 1 shown in . image 3 is used as figure 1 A cross-sectional view of the fan unit 11 of the impeller 1 shown in .

[0033] refer to image 3 , the fan device 11 using the impeller 1 according to the preferred embodiment of the present invention includes the impeller 1 , a plurality of stator blades 12 , a motor 13 , an outer frame member 14 and a support member 15 . The stator blades 12 , the outer frame member 14 and the support member 15 define a housing 16 of the fan assembly 11 . Note that in this preferred embodiment, the stator blades 12 and the support members 15 are arranged on the outlet side along the center axis 17 of the impeller 1 (ie, image 3 in the lower side), but can be set on the inlet side i...

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PUM

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Abstract

An impeller, a fan apparatus, and a method of manufacturing the impeller are provided. The impeller includes a support portion, a plurality of rotor blades, and a joining member. The joining member is a substantially annular member provided to strengthen the rotor blades against influence of a centrifugal force, and extends in a circumferential direction along a circle centered on a central axis so as to join the rotor blades to one another. In each of the rotor blades, a point of intersection of a leading edge of the rotor blade with a radially outer end of the rotor blade is positioned forward, with respect to a rotation direction, relative to a point of intersection of the leading edge with an outside surface of the support portion. The joining member is positioned radially inwards of the radially outer end of each of the rotor blades.

Description

technical field [0001] The present invention relates to an impeller having forward-swept blades arranged to generate an air flow along its central axis about which the impeller rotates, a fan device using the same and a method of manufacturing the same. Background technique [0002] An electronic device such as a personal computer or a server is usually provided with a cooling fan for cooling electronic components inside its housing. As the density of electronic components within housings increases, there is a need to improve the performance of cooling fans. In general, cooling fans can be divided into two types: exhaust fans, which are designed to exhaust hot air inside the enclosure to the outside of the enclosure; and blowers, which are designed to deliver cooling air directly to the heated of electronic components. In a hair dryer, the direction of the airflow (ie, the direction in which the air is delivered) is important. [0003] Where cooling air is delivered direc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/32F04D29/38F04D25/08B29C45/00
Inventor 比护旭日冲哲也旦野太郎伊藤充关口治刘胜伸
Owner JAPAN SERVO CO LTD
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