Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Axial flow fan

An axial flow, fan technology, applied in the field of rib shape

Active Publication Date: 2009-06-24
NIDEC CORP
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, the airflow interferes with the ribs causing interference noise, a source of noise in fans

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Axial flow fan
  • Axial flow fan
  • Axial flow fan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] will refer to Figures 1 to 12C Preferred embodiments of the present invention are described in detail. It should be noted that in the description of the present invention, when the positional relationship and orientation between different components are described as up / down or left / right, it refers to the final positional relationship and orientation in the drawings; The positional relationship and orientation of parts when assembled into an actual device. Meanwhile, in the following description, an axial direction refers to a direction parallel to a rotation shaft, and a radial direction refers to a direction perpendicular to the rotation shaft.

[0030] figure 1 is a sectional view of an axial fan according to an exemplary embodiment of the present invention. figure 2 for figure 1 Perspective view of the housing of an axial fan. Figure 3A The cross-sectional shape of the impeller blade viewed in the radial direction, and the direction of rotation of the impell...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides an axial fan, which includes: a motor including a rotor rotatable around a rotating shaft; an impeller mounted on the outer periphery of the rotor to rotate around the rotating shaft together with the rotor, the impeller includes a plurality of blades that generate air flow as the rotor turns; a housing that surrounds the periphery of the impeller to form a passage for the air flow; a frame on which the motor is placed; and a plurality of ribs that extend from the frame to the housing and Secure the frame to the case. In the axial fan, each of the ribs includes an air guide surface facing the impeller. The air guide surface is a substantially flat surface or a curved surface having an average inclination with respect to an axial direction parallel to the rotation axis. The average inclination is defined as an inclination of a straight line substantially connecting both ends of the air guide surface on a plane perpendicular to the radial direction at a position along the radial direction perpendicular to the axial direction. The average tilt angle becomes smaller away from the axis of rotation.

Description

technical field [0001] The present invention relates to an axial fan, and more particularly, to a shape of a rib in the axial fan. Background technique [0002] Currently, electronic equipment is provided with many cooling fans for dissipating heat generated in the electronic equipment. As the performance of electronic equipment increases, the heat generated gradually increases, so the requirements for the cooling performance of the fan also become higher. In order to improve the cooling performance of the fan, it is necessary to improve the flow velocity characteristic and the static pressure characteristic of the fan. The improvement of these two characteristics requires the fan to rotate at a high speed. On the other hand, with the increase of electronic devices used in homes or offices, there is an increasing demand for noise reduction in many electronic devices. [0003] A general fan includes: a motor; an impeller having a plurality of blades mounted to a rotor of t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/66F04D29/52F04D29/54F04D19/00
CPCF04D29/547F04D29/582F04D25/0613F04D29/544
Inventor 吉田裕亮
Owner NIDEC CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com