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Low-weight high-strength outer rotor fan

An external rotor fan, high-strength technology, applied in the direction of electromechanical devices, mechanical equipment, control of mechanical energy, etc., can solve the problems of not guaranteeing the structural strength of the fan, affecting the use of the fan, reducing the reliability of the fan, etc., to ensure the transparency of the magnetic field performance, increase strength, and reduce the weight of the fan

Pending Publication Date: 2021-08-27
沈阳兴华航空电器有限责任公司
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AI Technical Summary

Problems solved by technology

[0002] For traditional fans, die-casting pure aluminum can enhance the permeability of the magnetic field and ensure the performance of the fan, but there is a problem of weak structural strength, which cannot guarantee the structural strength of the fan in vibration, which reduces the reliability of the fan; and for the traditional For metal fan blades, the weight of the fan is greatly increased, which affects the use of the fan

Method used

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  • Low-weight high-strength outer rotor fan
  • Low-weight high-strength outer rotor fan
  • Low-weight high-strength outer rotor fan

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Embodiment Construction

[0017] In order to make the purpose, technical solution and advantages of the technical solution clearer, the technical solution will be further described in detail below in conjunction with specific embodiments. It should be understood that these descriptions are only exemplary, and are not intended to limit the scope of the technical solution.

[0018] The invention discloses an outer rotor fan which enhances the structural strength of the fan and reduces the weight of the fan itself. It includes a casing assembly 1, a bearing 5, and a rotor assembly 6. The casing assembly 1 includes a casing, a stator assembly 3, The stator assembly 3 and the shell assembly 1 are in clearance fit, and the inside of the shell is provided with a keyway, and a stator key 1-1 is installed in the keyway, which is used to prevent the axial movement of the stator assembly 3;

[0019] The rotor assembly 6 includes a rotor core 7, a shaft 4, and a fan blade 2. The die-casting end of the shaft is pro...

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Abstract

The invention discloses a low-weight high-strength outer rotor fan which comprises a shell assembly, a bearing and a rotor assembly. The shell assembly comprises a shell and a stator assembly, the stator assembly is in clearance fit with the shell assembly, a key groove is formed in the inner side of the shell, and a stator key is installed in the key groove and used for avoiding axial movement of the stator assembly. The rotor assembly comprises a rotor iron core, a shaft and fan blades, a circular boss a is arranged on a die-casting end face of the shaft, circular bosses b are arranged at the end close to the circular boss a at intervals, an annular groove structure is formed between the circular boss a and the circular bosses b, the fan blades are fixed to the side face of the rotor iron core, and the fan blades are fixed to the annular groove in a die-casting mode. The circular boss a is gear-shaped and is used for increasing the die-casting joint surface and improving the structural strength of a rotor. The low-weight high-strength outer rotor fan has the advantages of being high in reliability, capable of bearing larger impacts and vibration and small in weight.

Description

technical field [0001] The invention relates to the technical field of fan structure, in particular to a low-weight and high-strength outer rotor fan. Background technique [0002] For traditional fans, die-casting pure aluminum can enhance the permeability of the magnetic field and ensure the performance of the fan, but there is a problem of weak structural strength, which cannot guarantee the structural strength of the fan in vibration, which reduces the reliability of the fan; and for the traditional For metal fan blades, the weight of the fan is greatly increased, which affects the use of the fan. Contents of the invention [0003] In order to solve the above problems, the present invention provides an outer rotor fan which enhances the structural strength of the fan and reduces the weight of the fan itself. [0004] In order to achieve the above object, the technical solution adopted by the present invention is: it includes a housing assembly, a bearing, and a rotor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08F04D29/02F04D29/38H02K7/14
CPCF04D25/08F04D29/023F04D29/384F04D29/388H02K7/14
Inventor 陈军任陈倩乔春雨范正鑫于收海
Owner 沈阳兴华航空电器有限责任公司
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