Title:
SIMPLE LIGHT-SHADING AND AIR-DISCHARGE DEVICE AND STAGE LAMP WITH SAME
Document Type and Number:
WIPO Patent Application WO/2020/238263
Kind Code:
A1
Abstract:
Disclosed is a simple light-shading and air-discharge device, comprising a ventilation plate and a light-shading plate, which are arranged opposite each other at an interval. A ventilation opening is provided in the ventilation plate, and the ventilation opening is formed by punching the ventilation plate; and the vertical projection of the light-shading plate on the ventilation plate covers the ventilation opening. According to the simple light-shading and air-discharge device, the vertical projection of the light-shading plate on the ventilation plate covers the ventilation opening in the ventilation plate, so that the light-shading plate can prevent light rays from leaking out from the ventilation opening, and an airflow can flow out from a gap between the light-shading plate and the ventilation plate. The light-shading plate and the ventilation plate are both common flat plates without a special design, and can be directly formed by means of punching. The ventilation opening provided in the ventilation plate is also formed by means of punching, and the ventilation opening can be machined while the ventilation plate is manufactured. Compared with a louver, the ventilation plate is easier to manufacture. The manufacturing of the whole simple light-shading and air-discharge device is also easier, and a good light-shading and ventilation effect can be achieved merely by means of two common flat plates which are fixed to each other, thereby effectively reducing the assembly time and the production cost.
Inventors:
JIANG WEIKAI (CN)
Application Number:
PCT/CN2020/072469
Publication Date:
December 03, 2020
Filing Date:
January 16, 2020
Export Citation:
Assignee:
GUANGZHOU HAOYANG ELECTRONICS CO LTD (CN)
International Classes:
F21S8/00
Foreign References:
| CN201992559U | 2011-09-28 | |||
| CN201992559U | 2011-09-28 | |||
| CN205079179U | 2016-03-09 | |||
| CN2650180Y | 2004-10-20 | |||
| US4630182A | 1986-12-16 | |||
| CN1948826A | 2007-04-18 | |||
| CN1434347A | 2003-08-06 | |||
| CN101374399A | 2009-02-25 | |||
| US20140254089A1 | 2014-09-11 | |||
| CN202281098U | 2012-06-20 |
Attorney, Agent or Firm:
GUANGZHOU RUNHE INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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