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Blower apparatus

A technology for an air supply device and an air supply portion, which is applied to a pump device, a component of a pumping device for elastic fluid, a liquid fuel engine, etc., can solve the problems of a reduced axial length and the inability to obtain sufficient air supply efficiency, etc. , to achieve the effect of excellent quietness, weight reduction, and improvement of air supply efficiency

Inactive Publication Date: 2017-12-15
NIDEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the thickness of the air blower is reduced to reduce the axial length of the impeller, there will be a problem that sufficient air blowing efficiency cannot be obtained.

Method used

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  • Blower apparatus
  • Blower apparatus
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Experimental program
Comparison scheme
Effect test

no. 1 approach ＞

[0028]

[0029] figure 1 It is a perspective view of the air blower 1 which concerns on 1st Embodiment. figure 2 It is a plan view of the air blower 1 . image 3 It is a cross-sectional view of the air blower 1 along the A-A cross section. Figure 4 It is an exploded perspective view of the air blower 1 . Figure 5 It is a partial sectional view of the air blower 1 . This air blower 1 is a centrifugal type air blower that generates an airflow directed outward in the radial direction when the air blower 40 rotates. The air blower 1 is installed, for example, in electronic equipment such as a personal computer, and is used to cool the inside thereof. In addition, the air blower of the present invention can also be used for other purposes.

[0030] Such as Figure 1 ~ Figure 4 As shown, the air blower 1 has a housing 20 , a motor portion 30 and an air blower 40 .

[0031] The housing 20 is a case that accommodates the motor unit 30 and the blower unit 40 . The casing 2...

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PUM

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Abstract

This blower apparatus includes an air blowing portion including a plurality of flat plates arranged with an axial gap defined between adjacent ones of the flat plates; a motor portion arranged to rotate the air blowing portion; and a housing arranged to house the air blowing portion and the motor portion. The housing includes a lower plate portion and an upper plate portion with a suction port, and a sidewall portion with a blower port having an opening facing radial direction. At least one of the flat plates includes a plurality of through holes each of which is arranged to pass therethrough in the axial direction. The through holes communicate with the radial external space of the air blowing portion through axial gaps. Once the air blowing portion starts rotating, an air flow traveling radially outward is generated between the flat plates by viscous drag of surfaces of the flat plates and a centrifugal force. Air supplied by the suction portion and the through holes face the radial outer side of the air blowing portion. Since the air flow is generated between the flat plates, the air flow does not easily leak upwardly or downwardly, and thus, an improvement in air blowing efficiency is achieved, even when the thickness of the blower apparatus is reduced. In addition, the blower apparatus is additionally reduced in noise when compared with a centrifugal fan including an impeller.

Description

technical field [0001] The invention relates to an air supply device. Background technique [0002] Conventionally, there is known a centrifugal blower that generates an airflow radially outward by rotating an impeller having a plurality of blades. A conventional air blower having an impeller is described in, for example, Japanese Laid-Open Publication No. 2008-88985. [0003] In the air blower described in Japanese Laid-Open Publication No. 2008-88985, surrounding air is squeezed out by a plurality of blades called fan blades to generate an airflow directed outward in the radial direction. [0004] In recent years, miniaturization and thinning of electronic devices have been increasingly demanded. Therefore, reduction in thickness is also required for air blowers used for cooling inside electronic equipment. [0005] Here, in the air blower described in Japanese Laid-Open Publication No. 2008-88985, when the airflow is generated by the impeller, the airflow extruded by t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08F04D29/66F04D29/42
CPCF04D25/0606F04D25/08F04D29/4226F04D29/661F04D17/161F04D25/0613F04B39/02F04B35/04F04B17/00
Inventor 日野祐子刘胜伸塚本智幸莳田昭彦
Owner NIDEC CORP