| 摘要 |
PURPOSE:To obtain sufficient defrosting effect without need for operating an air mix damper to be in the maximum heating position by allowing part of hot air to flow into a defroster blow-off port and upper blow-off ports on both sides, as it is without mixing it with a cool air. CONSTITUTION:Air which is sucked into a blower unit 6, is distributed to a heater core 12 and a cool air passage 15 in accordance with the operated position of an air mix damper 14, after being sent to a cooler core 10 and dehumidified and cooled. A hot air D which passed through the heater core 12, is mixed with a cool air A in a cool air passage 16 which doubles as a mixing chamber. Part of the hot air D is allowed to pass through a hot air passage 29 from the opening part 35 of an air guide 30, along the inner wall 9b of a case 9. Then, it is allowed to blow off from the discharge port of the air guide 30 toward deftoster blow-off ports 19 and upper blow-off ports 23 on both side parts, as shown by the arrow F. And, a hot air F and a cool air E are mixed and allowed to blow off from the blow-off ports 19, 23. |
