# US 12,109,341 B2 · Discharge device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,109,341 B2 - Document ID: US12109341B2 - Status: Granted - Kind: B2 - Application number: 17/975,574 - Filed: 2022-10-27 - Published: 2023-05-18 - Granted: 2024-10-08 - Earliest claimed: 2021-11-17 - Assignees: Sharp Kabushiki Kaisha - Applicants: Sharp Kabushiki Kaisha - Inventors: Satoshi Okano; Nobuyuki Ohe - Web page: https://patentgrep.com/patent/US12109341B2 ## CPC - A61L 9/22: Ionisation - H01T 19/04: having pointed electrodes - B03C 3/82: Housings - H01T 23/00: Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere - A61L 2209/10: Apparatus features - A61L 2209/211: Use of hydrogen peroxide, liquid and vaporous - A61L 2209/212: Use of ozone, e.g. generated by UV radiation or electrical discharge - F24F 8/30: by ionisation - F24F 2221/36: Modules, e.g. for an easy mounting or transport - H01T 19/00: Devices providing for corona discharge (for charging electrographic elements G03G15/02) - A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K) - H01T: SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES (overvoltage protection circuits H02H) - 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) - F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02) ## Abstract A discharge device is housed in a housing portion of a holder. The discharge device includes a housed section and a discharge electrode protruding from the housed section. The housed section is housed in the housing portion. The housed section includes a bottom wall and two side walls. The two side walls oppose each other in a longitudinal direction of the bottom wall. At least one of the two side walls is connected to the bottom wall via a curved surface. The curved surface guides a corner of the housing portion when the housed section is housed in the housing portion. As a result, the housed section is housed in the housing portion without catching on the corner. ## Claims ### Claim 1 A discharge device to be housed in a housing portion of a holder, the discharge device comprising: a housed section to be housed in the housing portion; and a discharge electrode protruding from the housed section, wherein the housed section includes a bottom wall, and two side walls opposing each other in a longitudinal direction of the bottom wall, at least one of the two side walls is connected with the bottom wall via a curved surface, and the curved surface guides a corner of the housing portion at a time of housing the housed section in the housing portion such that the housed section is housed in the housing portion without catching on the corner. ### Claim 2 (depends on 1) The discharge device according to claim 1, wherein the housing portion has a step structure, the housed section includes a first housed section from which the discharge electrode protrudes, and a second housed section overlapping the first housed section, a length of the first housed section in a longitudinal direction is greater than a length of the second housed section in a longitudinal direction, and the second housed section avoids a step of the housing portion at a time of housing the housed section while changing an orientation of the housed section from a tilted orientation to an orientation suitable for housing. ### Claim 3 (depends on 2) The discharge device according to claim 2, wherein a center of the second housed section in the longitudinal direction is closer to one end portion side of the first housed section in the longitudinal direction relative to a center of the first housed section in the longitudinal direction. ### Claim 4 (depends on 2) The discharge device according to claim 2, wherein the second housed section is arranged between both end portions of the first housed section in the longitudinal direction, in the longitudinal direction of the first housed section. ### Claim 5 (depends on 2) The discharge device according to claim 2, wherein the second housed section includes one of the curved surfaces. ### Claim 6 (depends on 2) The discharge device according to claim 2, wherein the second housed section includes two of the curved surfaces at different positions in the longitudinal direction. ### Claim 7 (depends on 2) The discharge device according to claim 2, wherein the second housed section houses a high voltage generation component configured to supply a high voltage to the discharge electrode. ### Claim 8 (depends on 1) The discharge device according to claim 1, wherein the holder includes a first securing portion, the first securing portion protrudes from the housing portion toward a path through which the housed section passes at a time of moving in or out of the housing portion, the housed section includes a catch portion formed in a recessed shape for catching the first securing portion, the housed section is housed in the housing portion by rotating with the catch portion catching on the first securing portion, and at a time of housing the housed section in the housing portion, the first securing portion catches on the catch portion of the housed section to secure the housed section. ### Claim 9 (depends on 8) The discharge device according to claim 8, further comprising: a connection portion configured to connect electrical circuit components including the discharge electrode to an external power supply, wherein the connection portion is provided at a position in parallel to the catch portion in the housed section. ### Claim 10 (depends on 1) The discharge device according to claim 1, wherein a plurality of the discharge electrodes are disposed along the longitudinal direction of the housed section. ### Claim 11 (depends on 10) The discharge device according to claim 10, wherein the housing portion includes a second securing portion, the discharge device further includes a protector surrounding the discharge electrode in a state of maintaining a space around the discharge electrode to protect the discharge electrode, and the protector is provided spaced apart from one end portion of the housed section in the longitudinal direction, and the second securing portion is caught in the housed section between the one end portion of the housed section and the protector to secure the housed section.