# US 2019/0168571 A1 · Air conditioner for vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0168571 A1 - Document ID: US20190168571A1 - Status: Published application - Kind: A1 - Application number: 16/323,571 - Filed: 2017-12-07 - Published: 2019-06-06 - Earliest claimed: 2016-12-07 - Assignees: Hanon Systems - Applicants: Hanon Systems - Inventors: Jong Su KIM; Seong Seok HAN; Jeong Jae LEE; Hyung Joo KIM; Hun Sang LEE; Heon HUR; Beom Ki KIM - Web page: https://patentgrep.com/patent/US20190168571A1 ## CPC - B60H 1/00521: {Mounting or fastening of components in housings, e.g. heat exchangers, fans, electronic regulators} - B60H 1/00: Heating, cooling or ventilating devices - B60H 1/00664: {Construction or arrangement of damper doors (control systems or circuits for damper doors B60H1/00835)} - B60H 1/00671: {Damper doors moved by rotation; Grilles} - B60H 1/3202: {using evaporation, i.e. not including a compressor, e.g. involving fuel or water evaporation} - B60H 2001/006: {Noise reduction} - B60H 2001/00714: {Details of seals of damper doors} - B60H 2001/3286: {Constructional features} - B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES ## Abstract The present invention relates to an air conditioner for a vehicle, which includes an air-conditioning case (200), and at least one door (100) mounted to be opened and closed at a predetermined position, wherein the door (100) is formed integrally with an arm pivot (140), and the arm pivot (140) includes a pin part, and ribs formed integrally with both sides of the pin part to reinforce rigidity of the pin part and offset noise. The air conditioner further includes distortion preventing parts formed on a rotary shaft to be dented and to be crossed to each other, thereby reducing a transformation rate of the door and securing accuracy of the pin part. ## Claims ### Claim 1 An air conditioner for a vehicle, which includes an air-conditioning case, and at least one door mounted to be opened and closed at a predetermined position, wherein the door is formed integrally with an arm pivot, and wherein the arm pivot includes a driving guide member, which helps driving of the door. ### Claim 2 (depends on 1) The air conditioner according to claim 1, wherein the driving guide member includes a means to guide the door to slide inside an elongated hole and/or a means for preventing collision between the arm pivot and an end portion of the elongated hole. ### Claim 3 (depends on 2) The air conditioner according to claim 2, wherein the arm pivot includes a pin part protruding from the end portion of the shaft, and wherein the driving guide member includes ribs integrally formed at both sides of the pin part to reinforce rigidity of the pin part and formed to separate the pin part from the end portion of the elongated hole at a predetermined interval. ### Claim 4 (depends on 3) The air conditioner according to claim 3, wherein the ribs are formed to get narrower in the direction of the end portion of the pin part. ### Claim 5 (depends on 3) The air conditioner according to claim 3, wherein the air-conditioning case includes an elongated hole in which the arm pivot of the door is inserted, and wherein the elongated hole has a curvature following a round trace formed by the arm pivot when the door rotates to open or close an outflow port of the air-conditioning case. ### Claim 6 (depends on 3) The air conditioner according to claim 3, wherein the elongated hole has a spare angle added to a predetermined operational angle of the door. ### Claim 7 (depends on 1) The air conditioner according to claim 1, wherein the driving guide member includes a guide case protruding to surround a part of the arm pivot along the circumference of the elongated hole. ### Claim 8 (depends on 7) The air conditioner according to claim 7, wherein the arm pivot includes a pin part and ribs formed on the pin part to reinforce rigidity of the pin part, and wherein the guide case protrudes to the height of the ribs of the arm pivot. ### Claim 9 An air conditioner for a vehicle, which includes an air-conditioning case, and at least one door mounted to be opened and closed at a predetermined position, wherein the door comprises: a plate for opening and closing at least one among an air passageway and an air outflow port disposed in the air-conditioning case; a shaft formed integrally with the plate to support the plate to be able to rotate; an arm part formed integrally with the shaft, wherein at least a part of the arm part protrudes to the outside of the air-conditioning case; and a leak preventing part disposed on the arm part to prevent a leak between the door and the air-conditioning case. ### Claim 10 (depends on 9) The air conditioner according to claim 9, wherein the leak preventing part protrudes from the arm part and is formed to come into contact with the air-conditioning case. ### Claim 11 (depends on 10) The air conditioner according to claim 10, wherein the air-conditioning case includes a protrusion inserted between the leak preventing part and the arm part. ### Claim 12 (depends on 10) The air conditioner according to claim 10, wherein an end portion of the leak preventing part, which comes into contact with the air-conditioning case, has an inclined surface tapered along the air-conditioning case. ### Claim 13 (depends on 9) The air conditioner according to claim 9, wherein the leak preventing part is connected with a sealing part formed on an edge of the plate and are doubly injection-molded. ### Claim 14 An air conditioner for a vehicle, which includes an air-conditioning case, and at least one door mounted to be opened and closed at a predetermined position, wherein the door includes a shaft and an arm pivot formed integrally with each other, and wherein the shaft of the door has a distortion preventing part formed on one side and the other side of the shaft to be dented asymmetrically. ### Claim 15 (depends on 14) The air conditioner according to claim 14, wherein a pair of plates extend to the shaft, and wherein the distortion preventing part is formed on one side and the other side of the shaft exposed between a pair of the plates and are dented asymmetrically. ### Claim 16 (depends on 14) The air conditioner according to claim 14, wherein the distortion preventing part includes: a plurality of first distortion part dented on one side of the shaft and a plurality of distortion preventing part dented on the other side of the shaft, and wherein the first distortion preventing part and the second distortion preventing part are formed in order. ### Claim 17 (depends on 16) The air conditioner according to claim 16, wherein the width of the first distortion preventing part or the second distortion preventing part is larger than the depth. ### Claim 18 (depends on 14) The air conditioner according to claim 14, wherein the distortion preventing part is formed to be dented deeper than a central line of the shaft. ### Claim 19 (depends on 14) The air conditioner according to claim 14, wherein both sides of the shaft are formed asymmetrically with respect to the center of a longitudinal direction of the door. ### Claim 20 (depends on 14) The air conditioner according to claim 14, wherein the shaft includes an arm pivot disposed at an end for regulating rotation of the door. ### Claim 21 (depends on 14) The air conditioner according to claim 14, wherein the door includes the shaft, the plate and the arm pivot, which are formed integrally.