# US 2019/0170377 A1 · Filter cleaning device for an air conditioner and air conditioner having such filter cleaning device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0170377 A1 - Document ID: US20190170377A1 - Status: Published application - Kind: A1 - Application number: 16/321,084 - Filed: 2017-07-25 - Published: 2019-06-06 - Earliest claimed: 2016-07-28 - Assignees: Daikin Industries, Ltd.; Daikin Europe N.V. - Applicants: Daikin Industries, Ltd.; Daikin Europe N.V. - Inventors: Ivan Suchansky; Ludek Vyvoda - Web page: https://patentgrep.com/patent/US20190170377A1 ## CPC - F24F 13/28: Arrangement or mounting of filters - B01D 46/681: by scrapers, brushes or the like - F24F 8/10: by separation, e.g. by filtering - F24F 8/108: using dry filter elements - F24F 8/90: Cleaning of purification apparatus - F24F 2221/22: Cleaning ducts or apparatus - 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) - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) ## Abstract A filter cleaning device for an air conditioner includes: a casing; a filter that is disposed in the casing and through which an air flow passes; a cleaning brush that is contactable with the filter surface and removes particulate matter from the filter surface; and a dust box that receives the particulate matter, and includes a housing accommodating the cleaning brush and having an opening through which the cleaning brush protrudes to contact a filter surface, a suction tool that includes an outlet in the housing to communicate with the dust box, and applies a suction force to the dust box to remove the particulate matter from the dust box; and a lid that is movable between first and second positions, and closes the opening of the housing in the second position when the suction force is applied. ## Claims ### Claim 1 A filter cleaning device for an air conditioner, comprising: a casing; a filter that is disposed in the casing and through which air flow passes, the filter having a filter surface; a cleaning brush that is contactable with the filter surface and removes particulate matter from the filter surface; and a dust box that receives the particulate matter and comprises a housing accommodating the cleaning brush and having an opening through which the cleaning brush protrudes to contact the filter surface, a suction tool that comprises an outlet in the housing to communicate with the dust box and applies a suction force to the dust box to remove the particulate matter from the dust box; and a lid that is movable between a first position and a second position, and closes the opening of the housing in the second position when the suction force is applied. ### Claim 2 (depends on 1) The filter cleaning device according to claim 1, wherein the dust box is moveable along the filter surface and the lid moves into the second position when the dust box is in a parking position. ### Claim 3 (depends on 2) The filter cleaning device according to claim 2, wherein the suction tool further comprises a suction opening in the casing, and the outlet of the dust box is connectable to the suction opening upon movement of the dust box into the parking position. ### Claim 4 (depends on 3) The filter cleaning device according to claim 3, wherein the outlet has a center axis substantially parallel to a direction of the movement of the dust box. ### Claim 5 (depends on 3) The filter cleaning device according to claim 3, further comprising: a sealing sandwiched between an area surrounding the outlet and an area surrounding the suction opening of the casing when the outlet and the suction opening are connected, the sealing being pressed by the dust box moving in the direction towards the suction opening. ### Claim 6 (depends on 2) The filter cleaning device according to claim 2, wherein the housing is disposed outside the filter surface when the dust box is in the parking position. ### Claim 7 (depends on 2) The filter cleaning device according to claim 2, wherein the lid is moveably fixed relative to the casing and comprises an actuating arm that engages with the dust box upon movement of the dust box in the direction into the parking position to move the lid from the first position into the second position. ### Claim 8 (depends on 1) The filter cleaning device according to claim 1, wherein the lid is movable into the second position by the suction force. ### Claim 9 (depends on 1) The filter cleaning device according to claim 1, wherein the lid is rotatably fixed relative to the casing to be rotatable between the first and second positions. ### Claim 10 (depends on 1) The filter cleaning device according to claim 1, wherein the lid is biased in the direction into the first position. ### Claim 11 (depends on 1) The filter cleaning device according to claim 1, wherein the lid defines a cavity that accommodates part of the cleaning brush protruding through the opening from the housing when the lid is in the second position. ### Claim 12 (depends on 1) An air conditioner comprising the filter cleaning device according to claim 1. ### Claim 13 (depends on 12) The air conditioner according to claim 12, wherein the dust box is moveable along the filter surface and the lid moves into the second position when the dust box is in a parking position, the suction tool further comprises a suction opening in the casing, and the outlet of the dust box is connectable to the suction opening upon movement of the dust box into the parking position, and the air conditioner further comprises a suction socket that is fluidly connected to the suction opening of the casing, and receives a hose of a vacuum cleaner providing the suction force and removing the particulate matter from the dust box.