Title:
SUCTION APPARATUS COMPRISING PLURALITY OF FANS
Document Type and Number:
WIPO Patent Application WO/2021/060697
Kind Code:
A1
Abstract:
A suction apparatus including a plurality of fans according to the present invention comprises: a main body provided with a suction port and an exhaust port; a driving unit which is installed in the suction port and provides a rotational force; a first fan unit which is fixed on a driving shaft of the driving unit; and a second fan unit which is installed on the exhaust port spaced in front of the first fan unit and which is fixed on an extension shaft extending from the driving shaft, wherein the suction amount is increased by reducing the air pressure between the first and second fan units which rotate while being arranged on the coaxial line. According to the present invention, during the process of rotating the first and second fan units that are arranged front and rear by using one driving unit, surrounding air from upper, lower, left, and right sides and a rear side is sucked while reducing the air pressure between the first and second fan units, and thus, an excellent exhaust efficiency can be obtained. The suction apparatus can be installed on a fan of an existing suction apparatus, that is, can be used in existing products because the main body having the first fan unit installed therein can be attached to/detached from a second housing of the second fan unit which has been installed earlier on an installation surface.
Inventors:
SEOL CHUL HWAN (KR)
Application Number:
PCT/KR2020/010556
Publication Date:
April 01, 2021
Filing Date:
August 10, 2020
Export Citation:
Assignee:
SEOL CHUL HWAN (KR)
International Classes:
F24F7/013; F04D25/08; F04D25/16; F04D29/053; F04D29/64
Foreign References:
| KR100728327B1 | 2007-06-13 | |||
| KR100359997B1 | 2002-11-07 | |||
| KR20170097317A | 2017-08-28 | |||
| KR20160012484A | 2016-02-03 | |||
| KR101190538B1 | 2012-10-16 |
Attorney, Agent or Firm:
CHEON JEE INTERNATIONAL PATENT & LAW FIRM (KR)
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