# US 2024/0189751 A1 · Air purifier > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0189751 A1 - Document ID: US20240189751A1 - Status: Published application - Kind: A1 - Application number: 18/554,385 - Filed: 2022-04-12 - Published: 2024-06-13 - Earliest claimed: 2021-04-14 - Assignees: Coway Co., Ltd. - Applicants: COWAY Co., Ltd. - Inventors: Jun Hyoung BAE; Yu Young NAM; Ki Soo KIM; Jae Hong KIM - Web page: https://patentgrep.com/patent/US20240189751A1 ## CPC - B01D 46/0006: {Filter elements or cartridges installed in a drawer-like manner} - B01D 46/00: Filters or filtering processes specially modified for separating dispersed particles from gases or vapours (filtering elements B01D24/00-B01D35/00; filtering material B01D39/00; their regeneration outside the filters B01D41/00) - B01D 46/0049: {containing fixed gas displacement elements or cores} - F24F 8/108: using dry filter elements - F24F 8/80: Self-contained air purifiers - F24F 13/20: Casings or covers - F24F 13/28: Arrangement or mounting of filters - B01D 2265/025: making use of ramps or cams - B01D 2265/028: Snap, latch or clip connecting means - B01D 2273/30: Means for generating a circulation of a fluid in a filtration system, e.g. using a pump or a fan - 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) - 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 The present disclosure relates to an air purifier and, more particularly, to an air purifier capable of introducing a filter support structure including a first body supporting a filter member and having a protruding part on a lower surface thereof, and a second body disposed at a lower portion of the first body and having a groove part having an inclined surface in contact with the protruding part formed at one side thereof, thereby allowing the filter member drawn out of the housing to be inserted into an inner space of the housing and simultaneously moving the filter member upward to form a sealing against a latching part, thereby enhancing convenience of filter management and improving air tightness of the filter member. ## Claims ### Claim 1 An air purifier comprising: a housing having at least a portion of one side surface openable: a filter member disposed in the housing and for filtering external air; a latching part disposed at an upper side of the filter member in the housing, wherein at least a portion of the latching part have a shape corresponding to an upper end of the filter member and is formed to be in contact with the upper end of the filter member; and a filter support structure on which the filter member is seated, and which, in a state where one side surface of the housing is open, can be drawn out of the housing along a pull-out direction in a direction of the one side surface, wherein the filter support structure comprises: a first body having a mounting part on which the filter member is seated, and having a protruding part protruding and extending in a direction of the ground on a lower surface thereof: and a second body disposed at a lower portion of the first body, and having a groove part formed on one side thereof with an inclined surface of a straight line or a curved line in contact with the protruding part, wherein the protruding part moves upward along the inclined surface of the groove part when the second body is drawn in a pull-in direction opposite to the pull-out direction, the first body moves from a release position, which is a position where the filter member is detachable, to a lock position, which is position at an upper side of the release position and a position where the filter member is in contact with the latching part and fixed thereto, and in the lock position, air flow between the filter member and the latching part is blocked. ### Claim 2 (depends on 1) The air purifier of claim 1, wherein an inclined portion corresponding to the inclined surface of the groove part is formed on one side of the protruding part. ### Claim 3 (depends on 1) The air purifier of claim 1, wherein the second body is formed in a shape of ‘’, the groove part is formed in plurality along opposite sides of the ‘’, and the protruding part of the first body is formed in plurality to correspond to the plurality of groove parts. ### Claim 4 (depends on 1) The air purifier of claim 1, wherein the filter support structure comprises: a third body of which at least a portion is disposed at a lower portion of the second body to support the second body, wherein the second body is formed in a shape of ‘’, the third body has a coupling part coupled to the mounting part, and the coupling part passes through the second body when the coupling part is coupled to the mounting part and is positioned above the second body. ### Claim 5 (depends on 1) The air purifier of claim 1, wherein when the second body is withdrawn in the pull-out direction, the protruding part moves downward along the inclined surface of the groove part, and the first body moves from the lock position to the release position. ### Claim 6 (depends on 5) The air purifier of claim 5, wherein the inclined surface of the second body is formed on the pull-out direction side of the groove part, and an engaging surface is formed on the pull-in direction side of the groove part, the protruding part is in contact with the engaging surface to limit movement in the pull-in direction at the release position, and the first body is drawn together with the second body when the second body is withdrawn in the pull-out direction. ### Claim 7 (depends on 6) The air purifier of claim 6, wherein the filter support structure comprises: a third body of which at least a portion is disposed at a lower portion of the second body to support the second body, wherein the third body has a coupling part coupled to the mounting part, and the third body is drawn together with the second body when the second body is withdrawn in the pull-out direction. ### Claim 8 (depends on 7) The air purifier of claim 7, wherein the mounting part of the first body has a circular or rectangular protruding structure corresponding to a shape of the filter member, and the coupling part of the third body is formed in a shape corresponding to the mounting part. ### Claim 9 (depends on 7) The air purifier of claim 7, wherein a pressing stopper temporarily pressing a portion of the second body is provided at one side of the third body to limit free movement of the second body. ### Claim 10 (depends on 7) The air purifier of claim 7, the third body comprises a support part protruding from one side thereof in the direction of the ground to support a load of the filter support structure in contact with the ground when the filter support structure is withdrawn. ### Claim 11 (depends on 7) The air purifier of claim 7, wherein the filter support structure comprises: a locking part temporarily limiting a relative movement of the second body before the filter support structure is fully inserted into the housing so that the first body can move upward by the relative movement of the second body only after the third body is fully inserted into the housing when the filter support structure is drawn. ### Claim 12 (depends on 11) The air purifier of claim 11, wherein the locking part comprises: a locking opening formed on one side of the third body: a locking groove formed at one side of the inside of the housing and formed at a position opposite to the locking opening when the filter support structure is fully inserted into the housing: and an elastic stopper protruding toward a lower side of the third body through the locking opening and having a spring therein to be lowed toward the locking groove when the elastic stopper is positioned above the locking groove, thereby fixing the third body to the housing, and wherein the elastic stopper is lifted to limit the relative movement of the second body when the elastic stopper is positioned at a position other than the locking groove. ### Claim 13 (depends on 12) The air purifier of claim 12, wherein an inclined surface is formed in one side of the locking groove so that the elastic stopper can be lifted without stopping locked when the third body moves. ### Claim 14 (depends on 12) The air purifier of claim 12, wherein the filter support structure further comprises: a fourth body coupled to the third body to move integrally with the third body and covering at least a portion of the second body, wherein the fourth body comprises a guide part coupled to the elastic stopper at one side thereof to guide the elastic stopper to ascend or descend. ### Claim 15 (depends on 14) The air purifier of claim 14, wherein the fourth body comprises a frame part surrounding at least a portion of an outer rim of the first body.