ELECTRIC DUST-COLLECTION UNIT AND AIR-CLEANING APPARATUS USING THE SAME

摘要

An electric dust-collection unit includes needle electrodes for charging particulates within the air caused by corona discharges around their tips. Collector cells (collector electrodes) are arranged in a tubular shape corresponding to the needle electrodes for attracting and collecting the charged particulates by static electricity. Deflecting electrodes are arranged to be inserted within the collector cells to impart a deflecting force on the charged particulates in the direction of the collector cells. The deflecting electrodes are in the form of a hollow column including a forward plate section having a mounting hole for fitting and retaining the needle electrodes. The deflecting electrodes also include side plate sections facing the collector cell at a prescribed distance. The needle electrodes are fixed on the forward plate sections so their tips protrude from the surface of the forward plate sections while their bodies are firmly inserted in the mounting hole.