# US 2021/0276400 A1 · Vehicle air-conditioning apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0276400 A1 - Document ID: US20210276400A1 - Status: Published application - Kind: A1 - Application number: 16/317,851 - Filed: 2017-05-31 - Published: 2021-09-09 - Earliest claimed: 2016-07-19 - Assignees: Denso Corporation - Applicants: Denso Corporation - Inventors: Yasuhiko NIIMI; Yuuka TASHIMA - Web page: https://patentgrep.com/patent/US20210276400A1 ## CPC - B60H 1/3421: {using only pivoting shutters} - B60H 1/00285: {for vehicle seats} - B60N 2/5628: {coming from the vehicle ventilation system, e.g. air-conditioning system} - B60N 2/5642: {with circulation of air through a layer inside the seat} - B60N 2/5657: {blown towards the seat surface} - B60H 2001/003: {Component temperature regulation using an air flow} - B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES - B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR ## Abstract A vehicle air-conditioning apparatus includes: a duct disposed in a seat of a vehicle, air flowing through the duct from an air conditioning unit; a rear seat outlet formed on a back face of a backrest portion of the seat to blow out the air from the duct toward a rear seat of the vehicle; and an air flow deflection member that partitions the rear seat outlet into a first region and a second region to define a first passage through which the air flows from the duct through the first region in a first direction in a vehicle cabin and a second passage through which the air flows from the duct through the second region in a second direction more downward than the first direction in the vehicle cabin. ## Claims ### Claim 1 A vehicle air-conditioning apparatus comprising: an air conditioning unit configured to send air conditioned in temperature; a duct disposed in a seat of a vehicle, the air flowing through the duct from the air conditioning unit; a rear seat outlet formed on a back face of a backrest portion of the seat of the vehicle to blow out the air from the duct toward a rear seat of the vehicle; and an air flow deflection member that partitions the rear seat outlet into an upper first region and a lower second region to define a first passage through which the air flows from the duct through the first region in a first direction in a vehicle cabin and a second passage through which the air flows from the duct through the second region in a second direction more downward than the first direction in the vehicle cabin, wherein the air flow deflection member causes a flow of the air flowing out of the first region through the first passage and a flow of the air flowing out of the second region through the second passage in a switching manner. ### Claim 2 (depends on 1) The vehicle air-conditioning apparatus according to claim 1, wherein the air flow deflection member closes one of the first passage and the second passage, and a wind speed of the air blown out from the first passage when the second passage is closed by the air flow deflection member is higher than a wind speed of the air blown out from the second passage when the first passage is closed by the air flow deflection member. ### Claim 3 (depends on 1) The vehicle air-conditioning apparatus according to claim 1, wherein the duct has a section extending along an axial line in a region adjacent to a downstream end of the duct in the air flow, the air flow deflection member comprises a door body formed in a plate shape, and a rotation shaft disposed downstream of the door body in the air flow in the duct and arranged along one side of the door body in a plane direction, the first passage is closed by one side of the door body, and the second passage is closed by the other side of the door body, and an angle defined between the axial line and the door body when the first passage is closed by the one side of the door body is larger than an angle defined between the axial line and the door body when the second passage is closed by the other side of the door body. ### Claim 4 (depends on 1) The vehicle air-conditioning apparatus according to claim 1, wherein a passage cross-sectional area of the first passage at the rear seat outlet is larger than a passage cross-sectional area of the second passage at the rear seat outlet. ### Claim 5 (depends on 1) The vehicle air-conditioning apparatus according to claim 1, wherein each of an upper opening edge portion of the rear seat outlet and a lower opening edge portion of the rear seat outlet is curved in a cross section perpendicular to a width direction of the vehicle, and a radius of curvature of the lower opening edge portion of the rear seat outlet is larger than a radius of curvature of the upper opening edge portion of the rear seat outlet. ### Claim 6 (depends on 1) The vehicle air-conditioning apparatus according to claim 1, wherein the duct has a section extending along an axial line in a region adjacent to a downstream end of the duct in the air flow, and the axial line from an upstream side to a downstream side in the air flow in the duct is directed more upward than a normal direction of an open plane of the rear seat outlet. ### Claim 7 (depends on 3) The vehicle air-conditioning apparatus according to claim 3, wherein the axial line from an upstream side to a downstream side in the air flow in the duct is directed more upward than a normal direction of an open plane of the rear seat outlet. ### Claim 8 (depends on 1) The vehicle air-conditioning apparatus according to claim 1, further comprising: an air diffusing member that diffuses the air blown out from the second passage in a width direction of the vehicle than the air blown out from the first passage. ### Claim 9 (depends on 8) The vehicle air-conditioning apparatus according to claim 8, wherein the air flow deflection member is a first air flow deflection member, and the air diffusing member includes a second air flow deflection member disposed in the second passage adjacent to the rear seat outlet to diffuse the air blown from the rear seat outlet in the width direction of the vehicle. ### Claim 10 (depends on 8) The vehicle air-conditioning apparatus according to claim 8, wherein the air flow deflection member is a first air flow deflection member, and the air diffusing member includes a third air flow deflection member disposed in the first passage adjacent to the rear seat outlet to concentrate the air blown from the rear seat outlet to a center in the width direction of the vehicle.