# US 12,181,174 B2 · Ceiling type air conditioner > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,181,174 B2 - Document ID: US12181174B2 - Status: Granted - Kind: B2 - Application number: 17/739,561 - Filed: 2022-05-09 - Published: 2022-08-18 - Granted: 2024-12-31 - Earliest claimed: 2020-08-11 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Munsub Kim; Jaewoo Choi; Hyunwuk Kang; Hyeongjoon Seo; Churju Lee; Duhan Jung; Jun Hwang - Web page: https://patentgrep.com/patent/US12181174B2 ## CPC - F24F 13/1413: {using more than one tilting member, e.g. with several pivoting blades (F24F13/15 takes precedence)} - F24F 1/0011: characterised by air outlets - F24F 1/0047: mounted in the ceiling or at the ceiling - F24F 13/1426: {characterised by actuating means} - F24F 13/1486: {characterised by bearings, pivots or hinges} - F24F 2013/1473: {with cams or levers} - F24F 2221/14: mounted on the ceiling - 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 ceiling type air conditioner includes a housing having an inlet and an outlet, a heat exchanger provided inside the housing to exchange heat with air suctioned through the inlet, a blower fan configured to cause the air having heat exchanged with the heat exchanger to flow such that the air having heat exchanged is discharged through the outlet, and a blade unit configured to guide the air discharged to the outlet. The blade unit includes a main blade, a sub-blade, and a guide link provided to guide a movement of the sub-blade. ## Claims ### Claim 1 A ceiling type air conditioner comprising: a housing having an inlet and an outlet; a heat exchanger provided inside the housing to exchange heat with air suctioned through the inlet; a fan configured to move the air, which is heat exchanged with the heat exchanger, to be discharged through the outlet; and a blade assembly configured to guide the air to the outlet, the blade assembly including: a main blade rotatable with respect to a first rotation center to open and close the outlet, the main blade including a sub-blade coupling portion extending from the main blade at a side of the main blade opposite to the first rotation center, a sub-blade rotatably coupled to the sub-blade coupling portion at a first joint portion to be rotatable about the first joint portion so that a first side of the sub-blade moves closer to the first rotation center, and a second side of the sub-blade that is opposite the first side moves further from the first rotation center, during a rotation of the main blade to open the outlet, thereby increasing a discharge distance of the air flowing out of the outlet, and a guide link configured to rotate with respect to a second rotation center in association with the rotation of the main blade, and coupled to the first side of the sub-blade at a second joint portion that is rotatable about the first joint portion to guide a movement of the sub-blade. ### Claim 2 (depends on 1) The ceiling type air conditioner of claim 1, wherein the sub-blade includes: the first joint portion rotatably coupled to the sub-blade coupling portion; and the second joint portion rotatably coupled to the guide link. ### Claim 3 (depends on 2) The ceiling type air conditioner of claim 2, wherein the guide link includes: a first end portion provided to form the second rotation center; and a second end portion rotatably coupled to the second joint portion of the sub-blade. ### Claim 4 (depends on 1) The ceiling type air conditioner of claim 1, wherein the sub-blade is provided to adjust a discharge direction of the air discharged through the outlet. ### Claim 5 (depends on 2) The ceiling type air conditioner of claim 2, wherein the main blade is rotatable between a first position and a second position, and when the main blade is in the first position, the first joint portion of the sub-blade is located above the second joint portion, and when the main blade is in the second position, the first joint portion of the sub-blade is located below the second joint portion. ### Claim 6 (depends on 5) The ceiling type air conditioner of claim 5, wherein during a heating operation, the main blade is located in the second position. ### Claim 7 (depends on 5) The ceiling type air conditioner of claim 5, wherein the sub-blade further includes a first surface that faces the main blade when the main blade is in the first position, and a second surface opposite to the first surface. ### Claim 8 (depends on 7) The ceiling type air conditioner of claim 7, wherein when the main blade is in the second position, the first surface of the sub-blade is provided to guide the air discharged to the outlet, and a portion of the second surface of the sub-blade is provided to face the main blade. ### Claim 9 (depends on 1) The ceiling type air conditioner of claim 1, wherein as the main blade and the sub-blade rotate, an angle between the main blade and the sub-blade increases. ### Claim 10 (depends on 2) The ceiling type air conditioner of claim 2, wherein a distance between the second rotation center and the second joint portion is shorter than a distance between the first rotation center and the first joint portion. ### Claim 11 (depends on 1) The ceiling type air conditioner of claim 1, wherein the blade assembly further includes a motor configured to provide a rotation force, and the main blade is coupled to a rotating shaft of the motor. ### Claim 12 (depends on 1) The ceiling type air conditioner of claim 1, wherein the blade assembly includes: a motor configured to provide a rotation force; a first driving link provided coupled to a rotating shaft of the motor; and a second driving link having one end portion coupled to the first driving link and another end portion coupled to the main blade, the second driving link configured to guide a movement of the main blade such that the main blade rotates with respect to the first rotation center. ### Claim 13 (depends on 1) The ceiling type air conditioner of claim 1, wherein the main blade includes a main blade body and a plurality of first discharge holes formed to pass through the main blade body; the sub-blade includes a sub-blade body and a plurality of second discharge holes passing through the sub-blade body; and the blade assembly is provided to move air through the plurality of first discharge holes and the plurality of second discharge holes. ### Claim 14 (depends on 1) The ceiling type air conditioner of claim 1, wherein the sub-blade rotates in a same direction as the main blade. ### Claim 15 (depends on 1) The ceiling type air conditioner of claim 1, wherein the blade assembly is operable in a first mode for discharging air through a plurality of first discharge holes formed in the main blade and a plurality of second discharge holes formed in the sub-blade, a second mode for allowing air discharged to the outlet to be guided in a downward direction, and a third mode for allowing air discharged to the outlet to be guided in a horizontal direction.