Title:
DUST SENSOR
Document Type and Number:
WIPO Patent Application WO/2018/032802
Kind Code:
A1
Abstract:
A dust sensor (1), comprising an air passage (10), a light emitting assembly (35), a photosensitive element (11) and a processing element (21). The light emitting assembly (35) comprises a light emitting tube (30) and a lens assembly (36, 37, 38), the light emitting tube (30) being used for emitting light to illuminate the air flow circulating in the air passage (10), the lens assembly (36, 37, 38) being located on the optical path of the light to concentrate the light emitted by the light emitting tube (30). The photosensitive element (11) is located in the air passage (10) to receive scattered light which is generated after the light illuminates dust. The processing element (21) determines the dust content on the basis of the scattered light, and adjusts the detection distance between the photosensitive element (11) and the lens converging light of the lens assembly (36, 37, 38) to achieve the highest resolution of the dust sensor (1).
Inventors:
ZHOU HONGMING (CN)
SHEN ZHICONG (CN)
LIU MINGLIANG (CN)
PENG SHUO (CN)
SHEN ZHICONG (CN)
LIU MINGLIANG (CN)
PENG SHUO (CN)
Application Number:
PCT/CN2017/082953
Publication Date:
February 22, 2018
Filing Date:
May 03, 2017
Export Citation:
Assignee:
GD MIDEA AIR CONDITIONING EQUIPMENT CO LTD (CN)
MIDEA GROUP CO LTD (CN)
MIDEA GROUP CO LTD (CN)
International Classes:
G01N15/06
Domestic Patent References:
| WO2015151502A1 | 2015-10-08 |
Foreign References:
| CN106053311A | 2016-10-26 | |||
| CN205982006U | 2017-02-22 | |||
| CN103837451A | 2014-06-04 | |||
| CN204142613U | 2015-02-04 | |||
| CN103822858A | 2014-05-28 | |||
| JP2010281660A | 2010-12-16 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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