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Heat dissipating fan

Inactive Publication Date: 2014-05-29
COOLER MASTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a fan that solves the problem of a rotor coming off a stator. The fan includes a magnetic member and a protruding portion that holds the magnetic member securely. The protruding portion prevents the rotor from coming off the stator when the fan is at rest or rotating. This ensures stable holding of the magnetic member and prevents damage to the fan.

Problems solved by technology

However, the quality of the anaerobic adhesive may degrade easily after being used for a long time or under high temperature such that the magnetic member 142 may come off the fan wheel 140.
Accordingly, the heat dissipating fan may have a breakdown or other components within an electronic device maybe damaged.
However, the mylar film 16 may fall off easily after being used for a long time such that the rotor 14 may come off the stator 12 due to vibration induced by high speed rotation.

Method used

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Examples

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Embodiment Construction

[0017]Referring to FIGS. 3 to 7, FIG. 3 is a perspective view illustrating a heat dissipating fan 3 according to an embodiment of the invention, FIG. 4 is an exploded view illustrating the heat dissipating fan 3 shown in FIG. 3, FIG. 5 is an exploded view illustrating the heat dissipating fan 3 shown in FIG. 3 from another viewing angle, FIG. 6 is a cross-sectional view illustrating the heat dissipating fan 3 shown in FIG. 3 along line X-X, and FIG. 7 is a bottom view illustrating the winding structure 322, the ring-shaped casing 342 and the magnetic member 344 shown in FIG. 6.

[0018]As shown in FIGS. 3 to 6, the heat dissipating fan 3 comprises a fan frame 30, a stator 32 and a rotor 34, wherein the stator 32 and the rotor 34 are disposed in the fan frame 30. The stator 32 comprises a bearing 320 and a winding structure 322, wherein the bearing 320 is disposed in the winding structure 322. In this embodiment, the winding structure 322 has a plurality of teeth 324 and there is a gap ...

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PUM

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Abstract

A heat dissipating fan includes a stator and a rotor. The stator includes a bearing and a winding structure, wherein the bearing is disposed in the winding structure. The rotor includes a fan wheel, a ring-shaped casing and a magnetic member, wherein the ring-shaped casing is disposed in the fan wheel and the magnetic member is disposed in the ring-shaped casing. The fan wheel has an axle inserted into the bearing such that the winding structure is located within the magnetic member. At least one protruding portion protrudes from one side of the ring-shaped casing inwardly and is extended below the winding structure so as to hold the magnetic member and interfere with the winding structure.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The invention relates to a heat dissipating fan and, more particularly, to a heat dissipating fan capable of holding a magnetic member stably and preventing a rotor from coming off a stator effectively.[0003]2. Description of the Prior Art[0004]Referring to FIG. 1, FIG. 1 is a cross-sectional view illustrating a heat dissipating fan 1 of the prior art. As show in FIG. 1, the heat dissipating fan 1 comprises a fan frame 10, a stator 12 and a rotor 14, wherein the stator 12 and the rotor 14 are disposed in the fan frame 10. The stator 12 comprises a bearing 120, a plurality of teeth 122 and a plurality of coils 124, wherein the teeth 122 are disposed around the bearing 120 and the coils 124 are wound around the teeth 122. The rotor 14 comprises a fan wheel 140 and a magnetic member 142, wherein the magnetic member 142 is attached on an inner wall of the fan wheel 140 and the fan wheel 140 has an axle 144 inserted into the...

Claims

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Application Information

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IPC IPC(8): F04D19/00
CPCF04D19/00F04D25/064F04D19/002F04D25/0646
Inventor HU, KAI-HSIANGXU, SHIMANLAI, JIASHENGHE, HAIJUN
Owner COOLER MASTER CO LTD
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