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1. (WO2018040635) DUSTPROOF FILTERING STRUCTURE AND PROJECTING APPARATUS HAVING SAME

Pub. No.:    WO/2018/040635    International Application No.:    PCT/CN2017/086176
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Sat May 27 01:59:59 CEST 2017
IPC: G03B 21/14
G03B 21/16
Applicants: APPOTRONICS CORPORATION LIMITED
深圳市光峰光电技术有限公司
Inventors: DU, Lunchun
杜伦春
HUANG, Min
黄旻
NONG, Jingjie
农静杰
XIE, Tao
谢涛
LI, Yi
李屹
Title: DUSTPROOF FILTERING STRUCTURE AND PROJECTING APPARATUS HAVING SAME
Abstract:
Disclosed is a dustproof filtering structure (40), comprising a support frame (42) and a filtering assembly (44), the support frame (42) being located on one side of the filtering assembly (44). The support frame (42) comprises solid portions (424) and hollow portions (426). Air passing through the filtering assembly (44) is blocked by the solid portions (424) and can pass through the support frame (42) via the hollow portions (426). In the dustproof filtering structure (40), by providing the solid portions (424) and the hollow portions (426) on the support frame (42) and adjusting the distribution of the solid portions (424) and the hollow portions (426), the regions where the hollow portions (426) are located substantially directly face heating regions of the projecting apparatus (100), and the regions where the solid portions (424) are located substantially directly face non-heating regions of the projecting apparatus (100), so that the outside air enters in a concentrated manner through the hollow portions (426) corresponding to the heating regions of the projecting apparatus (100), thereby improving the heat-dissipation efficiency and air volume utilization rate.