Title:
DUST-PROOF CEILING LAMP
Document Type and Number:
WIPO Patent Application WO/2018/202053
Kind Code:
A1
Abstract:
A dust-proof ceiling lamp, comprising: a lamp body (100), the lamp body (100) comprising a lamp head (110), a lens (120) which is mounted on the lamp head (110), and a light source assembly (30) which is accommodated within the lamp head (110); the light source assembly (30) is accommodated within an optical cavity (140); an outer portion of the optical cavity (140) is provided with a dust-proof assembly (50); the dust-proof assembly (50) comprises a first sealing element (51) and a second sealing element (52); the first sealing element (51) seals a first passage through which air enters into the optical cavity (140), and the second sealing element (52) seals a second passage through which air enters into the optical cavity (140). The dust-proof ceiling lamp adopts a sealing design which combines two sealing elements (51, 52) to prevent external dust from entering into the optical cavity (140), then accumulating and being adsorbed on an inner wall of the lens (120) and affecting lighting efficiency, such that even after the dust-proof ceiling lamp has been in operation for a long period, air within the optical cavity (140) remains clean, thereby maintaining the high lighting efficiency of the lens (120) and the appearance of the dust-proof ceiling lamp.
Inventors:
CHEN MING (CN)
ZHOU DINGDE (CN)
ZHOU DINGDE (CN)
Application Number:
PCT/CN2018/085365
Publication Date:
November 08, 2018
Filing Date:
May 02, 2018
Export Citation:
Assignee:
OPPLE LIGHTING CO LTD (CN)
International Classes:
F21S8/06
Foreign References:
| CN206682792U | 2017-11-28 | |||
| CN105546435A | 2016-05-04 | |||
| CN202382124U | 2012-08-15 | |||
| CN204853193U | 2015-12-09 | |||
| CN206055220U | 2017-03-29 | |||
| CN203823604U | 2014-09-10 | |||
| CN104100939A | 2014-10-15 | |||
| US7210827B1 | 2007-05-01 | |||
| US20110242828A1 | 2011-10-06 | |||
| US5934786A | 1999-08-10 |
Attorney, Agent or Firm:
WISEAST INTELLECTUAL PROPERTY LAW FIRM (CN)
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