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Fan structure

A fan and fan blade technology, applied in the field of fan structure, can solve the problems of low structural rigidity, increased cost, and easy to arouse structural resonance, etc., to achieve the effect of maintaining aesthetics and design, increasing air volume, and increasing area

Active Publication Date: 2013-12-04
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low structural rigidity of the plastic frame, it is easy to arouse structural resonance when encountering an external shock force
In order to avoid this phenomenon, there are two solutions. One solution is to change the material of the frame, change the material, increase the structural rigidity, and suppress vibration. Generally, the frame is extruded from aluminum, but this will increase the manufacturing cost. One solution is to change the form of the motor to a three-phase motor to change the cogging torque, but this method only removes the excitation frequency (changed from quadruple to 12), and the excitation frequency is not completely Disappears, can't effectively cancel the vibration

Method used

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Embodiment Construction

[0063] figure 1 An exploded perspective view showing an embodiment of the fan structure of the present invention. figure 2 for figure 1 The plan view of the assembled fan structure. image 3 for figure 2 cutaway view. As shown in Figures 1, 2 and 3, the fan structure 100 of the present invention includes a frame body 10, a silicon steel sheet group (magnetic conductive element) 20, a winding group 30, a permanent magnet 40, an iron ring 50 and 60 for a fan. The frame body 10, the silicon steel sheet group 20 and the winding group 30 constitute the stator of the fan structure, while the permanent magnet 40, the iron ring 50 and the fan 60 constitute the rotor assembly. The structure of the stator will be described first below.

[0064] The silicon steel sheet group 20 is stamped and formed by arranging a plurality of silicon steel sheets, and then placed in a mold of an injection molding machine, and then the injection molding material is formed to form the frame body 1...

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Abstract

The invention discloses a fan structure which comprises a frame body, a magnetic conduction component, a winding set and a rotor assembly. The frame body is provided with an inside surface. The magnetic conduction component is wrapped on the inside surface of the frame body. The winding set is arranged around the magnetic conduction component. The rotor assembly is rotatably arranged in the frame body. The rotor assembly comprises a plurality of fan blades and a permanent magnet. The plurality of fan blades are combined with a rotating shaft. The permanent magnet is around the plurality of fan blades, is combined with the plurality of fan blades, and corresponds to the winding set. By means of an electromagnetic action between the permanent magnet and the winding set, the rotor assembly rotates to drive the plurality of fan blades to rotate by taking the rotating shaft as the centre, so that airflow is generated.

Description

technical field [0001] The invention relates to a fan structure, in particular to a fan structure in which the magnetic conduction structure of the stator becomes a part of the frame to strengthen the frame. Background technique [0002] The outer frame of the existing fan structure is mostly a plastic frame. Due to the low structural rigidity of the plastic frame, it is easy to arouse structural resonance when encountering an external shock force. In order to avoid this phenomenon, there are two solutions. One solution is to change the material of the frame, change the material, increase the structural rigidity, and suppress vibration. Generally, the frame is extruded from aluminum, but this will increase the manufacturing cost. One solution is to change the form of the motor to a three-phase motor to change the cogging torque, but this method only removes the excitation frequency (changed from quadruple to 12), and the excitation frequency is not completely Disappeared, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D25/08F04D29/00
Inventor 梁弘毅邱奕清李坤洲黄世民
Owner DELTA ELECTRONICS INC
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