Dust removal device
AssigneeNEC Display Solutions, Ltd.
InventorTakayuki Okada
Life of this patent
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Abstract
A dust removal device is provided which reduces the differences, among different dusty environments, in time at which dust collection is started until the time when possible clogging may occur to significantly increase the time from the start of dust collection until the time when possible clogging occur, while improving dust removal performance. The dust removal device includes main filter 10 that is formed of non-woven cloth 8 with charged fiber, duct 6-1 with main filter 10 disposed therein, sub-filter 11 including a plurality of cylindrical air trunks formed of a charged member, and duct 6-2 with sub-filter 11 disposed therein. Duct 6-1 and duct 6-2 are in communication with each other. In operation, air flows from duct 6-1 to duct 6-2. Main filter 10 in duct 6-1 has a larger vent cross-sectional area than sub-filter 11 in duct 6-2.
Claims10
A dust removal device comprising:
- a first air filter formed of a non-woven cloth with charged fiber;
- a first duct with said first air filter disposed therein;
- a second air filter including a plurality of cylindrical air trunks formed of a charged member;
- and
- a second duct with said second air filter disposed therein, wherein:
- said first duct and said second duct are in communication with each other,
- said first duct and said second duct are used so as to pass air from said first duct to said second duct, and
- said first air filter in said first duct has a larger vent cross-sectional area than said second air filter in said second duct.
Dependencies are inferred from the claim text.