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SamsungGranted patentChips & hardwareInterest 4/10

Samsung patents air cleaner that uses a grid to stabilize static charge

This patent describes an air purifier that uses a sheet to release ions and trap dust particles. It adds a metal grid or mesh in front of the sheet and a switch that periodically grounds the grid to keep its electrical charge stable.

Why it mattersIt aims to make electrostatic air filters work more consistently by managing the electrical charge on the intake screen.

In the filing’s own words

An electrostatic precipitator includes a dust collecting sheet configured to emit ions and configured to collect an aerosol charged by the ions, a power supplier electrically connected to the dust collecting sheet, a plate-shaped structure arranged upstream of an air flow path rather than the dust collecting sheet, and including at least one of a filter mesh or a grille including a plurality of openings, a potential stabilizer arranged between the plate-shaped structure and a ground, and configured to stabilize a potential of the plate-shaped structure, and a controller configured to control the power supplier to supply power to the dust collecting sheet.

What exactly they claim (claim 1)

1. An electrostatic precipitator comprising: a dust collecting sheet configured to emit ions and configured to collect an aerosol charged by the ions from air flowing along an air flow path through the electrostatic precipitator; a power supplier electrically connectable to the dust collecting sheet; a plate-shaped structure arranged upstream of the dust collecting sheet along the air flow path, the plate-shaped structure comprising at least one of a filter mesh or a grille comprising a plurality of openings; a potential stabilizer, arranged between the plate-shaped structure and a ground, to stabilize a potential of the plate-shaped structure, the potential stabilizer including a relay configured to connect to and disconnect from the plate-shaped structure and the ground; and a controller configured to control the relay to be repeatedly turned on and off at predetermined time intervals so that the plate-shaped structure and the ground are repeatedly connected and disconnected at the predetermined time intervals based on the power supplier supplying power to the dust collecting sheet.

Facts

Company
Samsung (SAMSUNG ELECTRONICS CO., LTD.)
Official title
Electrostatic precipitator and control method thereof
Patent number
US12728424B2
Application number
17944545
Filed
Sep 14, 2022
Granted
Sep 8, 2026
Inventors
5
Claims
14

Classified under

B03C 3/47 Operations & transportB03C 3/011 Operations & transportB03C 3/08 Operations & transportB03C 3/09 Operations & transportB03C 3/12 Operations & transportB03C 3/38 Operations & transport
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.