Title:
FAN CAPABLE OF PRODUCING SOUND AND CHANGING BLADE PITCH
Document Type and Number:
WIPO Patent Application WO/2019/093799
Kind Code:
A1
Abstract:
The present invention relates to a fan structure capable of reproducing a sound and changing a blade pitch, and a control method therefor. A fan according to the fan structure comprises: a pivot shaft (51) extending radially from a hub (30), rotatably supported by the hub (30), and coupled to a blade (40) so as to be pivoted together with the blade (40); and a pivot drive unit for pivotally driving the pivot shaft (51). The pivot drive unit may comprise a voice coil and a magnetic circuit assembly, and even while the fan is rotating, it is possible to adjust the angle of attack of the blade and reproduce a sound by controlling the type, amplitude, frequency, and the like of power supplied to the coil.
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Inventors:
CHONG CHUNG-OOK (KR)
KIM KWANG WOOK (KR)
KIM KWANG WOOK (KR)
Application Number:
PCT/KR2018/013575
Publication Date:
May 16, 2019
Filing Date:
November 08, 2018
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
F04D29/36; F04D27/00; F04D29/66; G10K11/16; H02K7/14
Foreign References:
| KR101586614B1 | 2016-01-19 | |||
| KR101131393B1 | 2012-03-29 | |||
| KR20140080247A | 2014-06-30 | |||
| JP2017145820A | 2017-08-24 | |||
| JP2009121354A | 2009-06-04 |
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
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