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Outer rotor fan structure

An external rotor and fan technology, applied in the direction of non-variable pumps, non-volume pumps, liquid fuel engines, etc., can solve problems such as electromagnetic radiation interference and affect the safety of normal operation, and achieve the prevention of electromagnetic interference and the best shielding effect Effect

Active Publication Date: 2020-09-11
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the motor coil will generate radiated electromagnetic waves during operation, so the fan may cause electromagnetic radiation interference with other motor equipment or electronic products during use
In particular, when a variety of electronic products are concentrated in a small space, they may affect the normal operation and cause safety problems due to electromagnetic interference, so do not be careless

Method used

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  • Outer rotor fan structure
  • Outer rotor fan structure
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Embodiment Construction

[0049] The detailed description and technical content of the present invention are described as follows in conjunction with the drawings. However, the drawings are only provided for reference and explanation, and are not intended to limit the present invention.

[0050] Please refer to Figure 1 to Figure 3 , Are respectively a three-dimensional appearance schematic diagram, a three-dimensional exploded view and a combined cross-sectional view of the outer rotor fan structure of the present invention. The structure of the outer rotor fan 1 of the present invention includes a fixed subgroup 10, an outer rotor group 20, a front shield plate 30 and an impeller 40. The stator group 10 and the outer rotor group 20 are arranged correspondingly, and the front side shielding plate 30 is combined with the stator group 10 to shield the stator group 10. The impeller 40 generates air flow as the outer rotor assembly 20 rotates.

[0051] The stator assembly 10 includes a stator core 11 and a p...

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PUM

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Abstract

An outer rotor type fan structure includes a stator assembly, an outer rotor assembly, a front lateral shielding sheet and an impeller. The stator assembly includes a stator core and a plurality of coils. The outer rotor assembly corresponds to and covers the stator assembly. The outer rotor assembly includes a plurality of magnets and a rotor yoke. The plurality of magnets is disposed corresponding to the plurality of coils. The front lateral shielding sheet is a metallic sheet, the front lateral shielding sheet is disposed between the stator assembly and the outer rotor assembly, and the front lateral shielding sheet corresponds to and covers the plurality of coils. The impeller includes a plurality of blades. The rotor yoke drives the plurality of blades rotating. Thereby, the outer rotor type fan structure can be shielded and the fan can operate properly.

Description

Technical field [0001] The present invention relates to a fan, especially an outer rotor fan with shielding effect. Background technique [0002] Generally, electronic components generate heat during operation. Therefore, electronic devices are usually equipped with heat dissipation devices to remove the high heat generated during operation to reduce the temperature of the electronic components and prevent the high heat from affecting the service life and reliability of the electronic equipment. [0003] The fan is a common heat dissipation device, which is composed of a motor driving an impeller. However, the motor coil generates radiated electromagnetic waves during operation, so the fan may interfere with other electrical equipment or electronic products during use. In particular, when a variety of electronic products are concentrated in a small space, they may affect normal operation and cause safety problems due to electromagnetic interference, so you should not be careful. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K9/00F04D25/08F04D29/00
CPCF04D17/16F04D25/0633F04D25/0646F04D29/4226
Inventor 钱汉恩陈弘琪陈孟钰林哲弘龚超群
Owner DELTA ELECTRONICS INC