公开(公告)号：US20170190234A1

公开(公告)日：2017-07-06

申请号：US15122531

申请日：2015-09-22

Applicant: HANON SYSTEMS

Inventor： Chan Joo Maeng ,  Min Woong Kang ,  Dae Woong Lee ,  Jin Kuk Kim ,  Heon Hur

IPC: B60H1/00

CPC classification number: B60H1/00849 ,  B60H1/0075 ,  B60H1/00764 ,  B60H1/00785

Abstract: An air conditioning system for motor vehicles includes an air conditioner case having an external air introduction port and an internal air introduction port, an intake door rotatably installed in the air conditioner case so as to open the external air introduction port in an external air mode and open the internal air introduction port in an internal air mode, a blower configured to draw an internal air or an external air through the external air introduction port or the internal air introduction port and to blow the internal air or the external air into a vehicle room, and a control unit configured to control the intake door to move in such a direction as to close the external air introduction port and to restrain entry of rainwater into the external air introduction port, if a rotation speed level of the blower satisfies a predetermined condition in the external air mode.