A device for realizing surface cleaning of an optical element by ion wind and electrostatic coupling, comprising a fixing support, an optical element, an ion wind system, an electrostatic adsorption system, and a particle contaminant storage box; the ion wind system comprises an air knife, an ion bar, an ion bar support, a connecting sheet, and a three-degree-of-freedom combined displacement stage; the electrostatic adsorption system comprises rod-shaped electrodes, electrode fixing supports and a manual displacement stage; the particle contaminant storage box is connected to a working surface by means of storage box supports, and an included angle between the particle contaminant storage box and the storage box supports is 135 degrees.

Disclosed herein is an electrostatic precipitator apparatus that includes a housing having an inlet, into which gas is introduced, and an outlet from which the gas is discharged, and a collection module installed in the housing. The collection module includes a plurality of discharge electrodes, to which a voltage is applied, and a plurality of collection electrodes grounded and disposed between the discharge electrodes. The apparatus further comprises a washing water feeder to spray washing water to the collection module, and a washing water treatment device disposed beneath the collection module to accommodate the washing water dropped from the collection module.

The invention relates to a rack (21, 27, 28) for supporting electrostatic filter plates (22, 23) of an electrostatic filter (20). The rack (21, 27, 28) is an elongated member comprising a plurality of notches (11) on a longitudinal side of the rack (21, 27, 28) for supporting a plate (22, 23) arranged to a notch (11). The rack (21, 27, 28) further comprises a slot (26) for adhesive arranged to be used at least for attaching the plates (22, 23) to the rack (21, 27, 28). The slot (26) is arranged on the opposite side of the rack (21, 27, 28) than notches (11). There is also an opening (24) in the first group of plates (22) at that point where the plates (22) are aligned with the voltage supply rack (28) but which are not attached to that rack (28). The invention further relates to an electrostatic filter (20) comprising a plurality of racks.

A purifying device, including: an air guiding part provided with an air passage, a negative ion generator, and an air guiding cover. The negative ion generator includes an emitting head, and the emitting head is arranged to face the air passage. The air guiding part is provided with a first position limiting structure disposed on an inner wall of the air passage, and the first position limiting structure is provided with a position limiting groove configured to receive the emitting head. The air guiding cover is arranged on a top of the inner wall of the air passage and configured to press and cover the position limiting groove, and the inner wall of the air passage is configured to support the air guiding cover.

A purifying device, including: an air guiding part provided with an air passage, a negative ion generator, and an air guiding cover. The negative ion generator includes an emitting head, and the emitting head is arranged to face the air passage. The air guiding part is provided with a first position limiting structure disposed on an inner wall of the air passage, and the first position limiting structure is provided with a position limiting groove configured to receive the emitting head. The air guiding cover is arranged on a top of the inner wall of the air passage and configured to press and cover the position limiting groove, and the inner wall of the air passage is configured to support the air guiding cover.

An air ionization system is provided for creating an ionized airflow within a transit vehicle. The air ionization system includes a block having electronic control circuitry therein, air ionizing electrodes, and wiring electrically coupling the air ionizing electrodes to the electronic control circuitry. The air ionizing electrodes are mounted remote to the block in the transit vehicle and are mounted within an air distribution unit of the transit vehicle.

An air ionization system is provided for creating an ionized airflow within a transit vehicle. The air ionization system includes a block having electronic control circuitry therein, air ionizing electrodes, and wiring electrically coupling the air ionizing electrodes to the electronic control circuitry. The air ionizing electrodes are mounted remote to the block in the transit vehicle and are mounted within an air distribution unit of the transit vehicle.

The present invention relates to an electrification device and an electrical dust collecting apparatus including the same capable of adsorbing and filtering fine dust included in air in an air conditioning apparatus such as an air conditioner or an air cleaner, and more particularly, to an electrification device and an electrical dust collecting apparatus including the same capable of improving dust collecting efficiency by performing stable electrification at an accurate position using an electrification electrode in which an electrification pin and an electrode rod are formed integrally with each other.

An air purifier capable of removing hazardous substances and viruses from air. The air purifier further includes: a body having an air inlet formed on a lower end thereof, an air outlet formed on an upper end thereof, and a flow path formed therein to move air upward; a pre-filter disposed in the flow path of the body; a box-shaped cell type discharge device disposed in the flow path of the body to generate active species; a dust collection device in the flow path of the body and having a discharge part with a linear discharge electrode and a dust collection part for collecting the dust charged through the discharge part; an ozone removal device in the flow path of the body to remove ozone generated from the discharge device and/or the dust collection device; and an air fan disposed in the flow path of the body.

The present invention relates to an electrical dust collection device comprising: a charging part for applying charges to dust particles introduced from the outside; a dust collection part for collecting, by electric attraction, the dust particles charged by the charging part, wherein the charging part uses a first charging plate and a second charging plate, in parallel, in the movement direction of dust, thereby increasing an assembly property and further increasing dust collecting efficiency through stable charging, and the dust collection part comprises a first connection portion that continues at one side of a plurality of first dust collection plates, thereby increasing productivity and dust collecting performance.