JPS5726010A - Air conditioning device for automobile - Google Patents

Abstract

PURPOSE:To adjust upper and lower blown air temperatures respectively in accordance with a season, weather and individual fondness in an air-mixing air conditioning device, by providing both bypass passages above and below a heater core and air mixing dampers above and below the downstream side of the heater core respectively. CONSTITUTION:There are provided a heater core 10 almost in the central portion, bypass passage 25, 26 respectively above and below said core, simultaneously upper and lower layer air mixing chambers 17 and 18 in places after passing the bypass passages 25, 26 with the border of a partition plate 14. Further upper and lower layer air mixing dampers 15, 16 are provided respectively in outlets of the bypass passages 25, 26, and an end part of the partition plate 14 at the heater core side is arranged to the intersecting point of the dampers 15, 16. Accordingly, air sucked by a fan 4 from inside and outside air introduction ports 2, 3 passes the heater core 10 and the bypass passage 25, 26 through a cooler case 5, and is blown by control of the dampers 15, 16 at temperature suitable for each mode of summer, intermediate and winter seasons, defrosting operation or the like.