# US 12,758,983 B2 · Electrostatic charging device and assembly method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,758,983 B2 - Document ID: US12758983B2 - Status: Granted - Kind: B2 - Application number: 19/013,443 - Filed: 2025-01-08 - Published: 2025-12-11 - Granted: 2026-10-13 - Earliest claimed: 2024-06-07 - Applicants: AirQuality Technology (Shanghai) Co., Ltd. - Inventors: Shidan Long; Shanqing Meng; Lisun Wang; Kui Cai - Web page: https://patentgrep.com/patent/US12758983B2 ## CPC - B03C 3/38: Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames - B03C 3/41: Ionising-electrodes - B03C 3/86: Electrode-carrying means (B03C3/40 takes precedence) - B03C: MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS (separating isotopes B01D59/00; combinations of magnetic or electrostatic separation with separation of solids by other means B03B, B07B) ## Abstract An electrostatic charging device and an assembly method thereof, the electrostatic charging device includes a frame body, at least one first accommodating groove arranged inside the frame body, an electrode body arranged inside the at least one first accommodating groove and arranged along a length direction of the at least one first accommodating groove, and a plurality of electrode heads penetrating through a wall of the at least one first accommodating groove and connected with the electrode body; the plurality of electrode heads are arranged along the electrode body at intervals, such that a discharging area covers a whole of an interior of the frame body; the electrode body and a connector configured to connect the plurality of electrode heads and the electrode body are both sealed in the at least one first accommodating groove. ## Claims ### Claim 1 An electrostatic charging device, comprising: a frame body, comprising at least one edge frame; a plurality of rods, provided at interval inside the frame body; at least one first accommodating groove, provided at each side of each rod and opened to face the at least one edge frame; an electrode body arranged inside the at least one first accommodating groove and arranged along a length direction of the at least one first accommodating groove, and a plurality of electrode heads penetrating through a wall of the at least one first accommodating groove and connected with the electrode body and provided facing the at least one edge frame; wherein the plurality of electrode heads are arranged along the electrode body at intervals, such that a discharging area covers a whole of an interior of the frame body, wherein each electrode head is a wire electrode, or brush electrode, an angle between an arrangement direction of each electrode head and a plane in which the frame body is located is greater than or equal to 0 degrees and less than or equal to 60 degrees; the electrode body is sealed in the at least one first accommodating groove. ### Claim 2 (depends on 1) The electrostatic charging device according to claim 1, wherein a plurality of first accommodating grooves are arranged at intervals, and a plurality of electrode bodies located in different first accommodating grooves are sequentially connected in an end-to-end manner. ### Claim 3 (depends on 2) The electrostatic charging device according to claim 2, wherein both sides of each first accommodating groove are connected with the electrode heads; and a distance between two adjacent electrode heads on a same side of a same first accommodating groove is equal to a distance between two adjacent first accommodating grooves. ### Claim 4 (depends on 3) The electrostatic charging device according to claim 3, wherein the angle between the arrangement direction of each electrode head and the plane in which the frame body is located is 0 degrees. ### Claim 5 (depends on 4) The electrostatic charging device according to claim 4, wherein the electrode heads connected to two sides of the same first accommodating groove are arranged in parallel to form a plurality of electrode head pairs, and the plurality of electrode head pairs located in different first accommodating grooves are in a staggered arrangement or in a matrix arrangement. ### Claim 6 (depends on 4) The electrostatic charging device according to claim 4, wherein the electrode heads connected to two sides of the same first accommodating groove are in a staggered arrangement. ### Claim 7 (depends on 1) The electrostatic charging device according to claim 1, wherein the electrode body is connected with a high voltage power supply, the high voltage power supply is a built-in high voltage power supply or an external high voltage power supply. ### Claim 8 (depends on 1) The electrostatic charging device according to claim 1, wherein a plurality of second accommodating grooves configured to hold the plurality of electrode heads are fixedly arranged on an outer side of the wall of the at least one first accommodating groove, and the plurality of second accommodating grooves one-to-one correspond to the plurality of electrode heads. ### Claim 9 (depends on 1) The electrostatic charging device according to claim 1, wherein the at least one first accommodating groove is detachably connected with the interior of the frame body, and each end of the at least one first accommodating groove is provided with a notch matching the frame body, and when the at least one first accommodating groove is deposited inside the frame body, the at least one first accommodating groove does not protrude from an outer surface of the frame body. ### Claim 10 (depends on 1) The electrostatic charging device according to claim 1, wherein the at least one edge frame comprises a first edge frame and a second edge frame, and the first edge frame and the second edge frame are complementary structures that can be spliced. ### Claim 11 (depends on 1) The electrostatic charging device according to claim 1, wherein the frame body is provided with a discharging conductor, and the discharging conductor is provided with a plurality of discharging conductive holes matching the plurality of electrode heads. ### Claim 12 (depends on 1) An assembly method for assembling the electrostatic charging device according to claim 1, when the plurality of first accommodating grooves are separately connected to the frame body, the assembly method comprises the following steps: Step S11. arranging the plurality of first accommodating grooves at intervals; Step S12, putting the plurality of electrode bodies into the plurality of first accommodating grooves, and sequentially connecting the electrode bodies in different first accommodating grooves in an end-to-end manner to form an S-bend shape; Step S13, sequentially passing the plurality of electrode heads through the wall of each first holding groove to connect with the plurality of electrode bodies; Step S14. filling a sealant into the plurality of first accommodating grooves; Step S15. after the sealant is solidified, installing the frame body to a periphery of the plurality of first accommodating grooves; when the plurality of first accommodating grooves are integrated with the frame body, the assembly method comprises the following steps: Step S21, putting the plurality of electrode bodies into the plurality of first accommodating grooves; Step S22, sequentially passing the plurality of electrode heads through the wall of each first holding groove to connect with the plurality of electrode bodies; Step S23. filling the sealant into the plurality of first accommodating grooves, and waiting for a period of time until the sealant has solidified. ### Claim 13 (depends on 12) The assembly method according to claim 12, further comprising: installing the discharging conductor on the frame body, wherein the discharging conductive holes on the discharging conductor correspond to positions of the plurality of electrode heads.