Title:
LED STREETLIGHT INCLUDING AUTOMATIC FILTER CLEANING AIR PURIFICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/045316
Kind Code:
A1
Abstract:
The present invention relates to a streetlight by which the concentration of fine dust in air can be reduced. More specifically, a head body of an LED streetlight is divided into a front body having an LED PCB and a heat dissipation part disposed thereat, and a rear body provided with a pillar arm coupling part, and comprises a lower cover for covering the front body and the rear body from thereunder and having an LED module disposed at one side thereof, wherein: an air outlet is formed through the upper surface of the rear body; a fine dust sensor is installed at one side of the lower cover; an air inlet is formed at a position corresponding to the air outlet; and an air purification system is provided between the air outlet and the air inlet (132). The air purification system comprises: a ventilation fan installed directly under the air outlet; and a fine dust filtering means installed between the ventilation fan and the air inlet. The fine dust filtering means comprises: a filter part; a brush part for releasing fine dust captured by a filter of the filter part; and an operation part for allowing the brush part and the filter part to rub each other. The ventilation fan of the air purification system is operated in an air purification mode of being normally rotated by a control part, when a fine dust concentration detected by the fine dust sensor is equal to or larger than a set value.
Inventors:
LEE YOUNG SEB (KR)
Application Number:
PCT/KR2019/015993
Publication Date:
March 11, 2021
Filing Date:
November 21, 2019
Export Citation:
Assignee:
TECHEN CO LTD (KR)
International Classes:
B01D39/10; F21S8/08; B01D46/00; F21S9/03; F21V33/00; F24F3/16; F21W131/103
Domestic Patent References:
| WO2017099497A1 | 2017-06-15 |
Foreign References:
| KR101998623B1 | 2019-07-10 | |||
| KR20170090254A | 2017-08-07 | |||
| KR101998624B1 | 2019-07-10 | |||
| KR20170076078A | 2017-07-04 | |||
| KR102041158B1 | 2019-11-06 |
Attorney, Agent or Firm:
GOOD PATENT LAW FIRM (KR)
Download PDF: