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Title:
FAN CAPABLE OF GENERATING SOUND AND CANCELING NOISE
Document Type and Number:
WIPO Patent Application WO/2019/098604
Kind Code:
A1
Abstract:
The present invention relates to a fan structure capable of playing a sound and canceling a noise, and the fan comprises: a vibration plate accommodating space (42) provided in a blade (40); a vibration plate (43) accommodated in the vibration plate accommodating space (42); and an amplitude driving unit (79, 90) for vibrating the vibration plate (43). The vibration plate (43) is provided on a part of the surface of the blade (40) so as to minimize an effect on the strength and surface profile of the blade. The vibration plate (43) is provided at the outer edge of the blade (40), and a magnet (79) for driving the vibration plate (43) is fixed to the vibration plate. In addition, an electromagnet core (90) for vibrating the magnet (79) is disposed, at a fixing end, in a ring shape encompassing the blade (40). The type, amplitude, frequency, and the like of the power supplied to the electromagnet core are controlled such that the vibration plate of the blade vibrates even during rotation of the fan, and thus a sound can be played or a noise can be cancelled.

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Inventors:
KIM KWANG WOOK (KR)
LEE JANGWOO (KR)
CHONG CHUNG-OOK (KR)
Application Number:
PCT/KR2018/013577
Publication Date:
May 23, 2019
Filing Date:
November 08, 2018
Export Citation:
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Assignee:
LG ELECTRONICS INC (KR)
International Classes:
F04D29/66; F04D25/08; F04D29/38
Domestic Patent References:
WO2009071270A12009-06-11
Foreign References:
JP2017145820A2017-08-24
KR20040008850A2004-01-31
JPH11355890A1999-12-24
KR20100073981A2010-07-01
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
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