초록 ▼

A motor vehicle air-conditioner having a structure that reduces production costs. Main and sub air-mixing doors and an inner-air FOOT door are mechanically interlocked with a single air-mixing door actuator. The shape of an engagement hole of a main link plate of a door-interlock device is formed to

A motor vehicle air-conditioner having a structure that reduces production costs. Main and sub air-mixing doors and an inner-air FOOT door are mechanically interlocked with a single air-mixing door actuator. The shape of an engagement hole of a main link plate of a door-interlock device is formed to correspond to an operation pattern to rotate the main and sub air-mixing doors from MAX COOL to MAX HOT in an interval where a servomotor opening degree is from 0% to 80%. The shape of an engagement hole of a main link plate is such that the plate functions as a lost motion link plate that corresponds to an operation pattern to rotate the inner-air FOOT door from a fully closed state to a fully open state in an interval where the servomotor opening degree is from 80% to 100%. As a result, opening of the inner-air FOOT door becomes difficult even when the main and sub air-mixing doors are opened, and so leakage of conditioned air from a foot vent can be prevented.

대표청구항 ▼

[ What is claimed is:] [4.] An automotive air conditioner, comprising:an air-conditioner case having a face vent for blowing conditioned air toward the head and chest area of a rider, a foot vent for blowing conditioned air toward the feet of a rider, and a defroster vent for blowing conditioned air

[ What is claimed is:] [4.] An automotive air conditioner, comprising:an air-conditioner case having a face vent for blowing conditioned air toward the head and chest area of a rider, a foot vent for blowing conditioned air toward the feet of a rider, and a defroster vent for blowing conditioned air toward an inner surface of a vehicle window glass;inlet port switching means having an inside air inlet port and an outside air inlet port for opening and closing said inside an air inlet port and said outside air inlet port, said inside air inlet port for introducing an inside air to said air conditioner-case, said outside air inlet port for introducing an outside air to said air-conditioner case;a heat exchanger to heat air flowing within said air-conditioner case;a communicating passage communicating an air downstream side of said heat exchanger and said foot vent;an air mixing door to regulate an air quantity passing through said heat exchanger and an air quantity bypassing said heat exchanger;a vent switching door to selectively open or close said communicating passage and at least one of said face vent, said foot vent and said defroster vent;a single actuator to drive at least said air mixing door and said vent switching door;interconnecting means to cause said air-mixing door and said vent switching door to be mechanically interlocked with said actuator;an air passage within said air conditioner case is partitioned to form a first air passage to induct inside air introduced by operating said inlet port switching means to said foot vent, and a second air passage to induct outside air introduced by operating said inlet port switching means to said defroster vent when said foot vent and said defroster vent are both simultaneously opened, when said air mixing door is operated at a location where said air quantity passing through said heat exchanger is maximized and a maximum heating state is established.