US 12,083,853 B2
Heating, ventilation, and air conditioning system for vehicle
Dong Won Yeon, Daejeon (KR); Seok Jun Oh, Gwacheon-Si (KR); Jeong Woong Son, Seoul (KR); and In Keun Kang, Daejeon (KR)
Assigned to Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and Hanon Systems, Daejeon (KR)
Filed by Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and Hanon Systems, Daejeon (KR)
Filed on Oct. 26, 2022, as Appl. No. 17/974,273.
Claims priority of application No. 10-2021-0171084 (KR), filed on Dec. 2, 2021.
Prior Publication US 2023/0173869 A1, Jun. 8, 2023
Int. Cl. B60H 1/00 (2006.01)
CPC B60H 1/00064 (2013.01) [B60H 1/00514 (2013.01); B60H 2001/00135 (2013.01); B60H 2001/00192 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A vehicle air conditioning system configured for performing individual air conditioning in four zones for left and right spaces of a front seat and left and right spaces of a rear seat in a vehicle interior, the air conditioning system comprising:
a front seat heating, ventilation, and air conditioner (HVAC) separately supplying air that has passed through left and right flow paths of a front seat flow path in an air conditioning casing into the left and right spaces of the front seat to perform two-zone individual air conditioning for the front seat,
wherein a flow guide is provided in an upstream side space of an evaporator in an internal space of the air conditioning casing of the front seat HVAC to divide the upstream side space of the evaporator to have a left flow path and a right flow path,
wherein the flow guide and a side portion of the air conditioning casing opposite to the flow guide have a curved stepped portion in cross-section,
wherein the flow guide is disposed along a space between the side portion of the air conditioning casing and a front portion of the evaporator, and
wherein a spaced interval between the stepped portion of the side portion of the air conditioning casing and the stepped portion of the flow guide is a same as a spaced interval between the stepped portion of the flow guide and the front portion of the evaporator.