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Blade-free fan

A fan and blade technology, applied in the field of bladeless fans, can solve problems such as easy to generate noise

Inactive Publication Date: 2011-11-23
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the bladeless fan is less noisy than the traditional fan, it is still prone to noise when the bladeless fan is required to increase the air output speed

Method used

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Embodiment Construction

[0023] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, characteristics and effects of the bladeless fan proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. Details are as follows.

[0024] See figure 1 and figure 2 , a bladeless fan 100 according to one embodiment of the present invention includes an air intake unit 10 and an air outlet structure 20 . The air intake unit 10 is connected to the air outlet structure 20 and includes a motor 11 with a non-contact bearing 112 . The non-contact bearing 112 can be a magnetic bearing (Magnetic Bearing, MB) or a fluid dynamic bearing (Fluid Dynamic Bearing, FDB). The air outlet structure 20 includes a gas channel 22 and an annular casing 24 . A first internal passage 242 and an air outlet 244 are disposed in the annula...

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PUM

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Abstract

The invention relates to a blade-free fan. The blade-free fan comprises an air inlet unit and an air outlet structure connected with the air inlet unit. The air inlet unit comprises a motor with a noncontact bearing, and the noncontact bearing can be a magnetic suspension bearing or a liquid bearing. The blade-free fan has the advantage of reducing noise.

Description

technical field [0001] The invention relates to a fan, in particular to a bladeless fan. Background technique [0002] As a household appliance, fans are often used in people's daily life. A traditional fan includes a driving device and blades. The driving device has a rotating shaft, and the blades are mounted on the rotating shaft to be rotated by the driving device to make the air flow. [0003] However, in conventional fans, the airflow generated by the rotating blades is not uniform and tends to vibrate and generate noise. [0004] A bladeless fan has recently appeared that improves the uniformity of airflow and reduces noise. The bladeless fan generally includes an air intake unit and an air outlet structure, and a Coanda surface is provided in the air outlet structure. When in use, the air intake unit sucks outside air, and the sucked outside air is boosted and discharged from the gas outlet of the air outlet structure. When the air passes through the Coanda surfa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08F04D29/056F04D29/40F04D29/70
Inventor 曲桂楠刘建军官伟岩谭森化徐超
Owner HAIER GRP CORP