DOOR ACTUATOR FOR HVAC OF VEHICLE

摘要

PURPOSE: A door actuator of an air conditioner for a vehicle is provided to reduce total length of a case by arranging a solenoid valve and an actuating rod in parallel and reduce manufacturing costs by driving multiple doors with one motor. CONSTITUTION: A door actuator of an air conditioner for a vehicle comprises an output worm wheel(110), a first conversion gear(210), a second conversion gear(310), an actuating rod(410), a solenoid valve(400), and an elastic spring(500). The first conversion gear is arranged on an actuating shaft which can engage with the output worm wheel. The second conversion gear locates under the first conversion gear on the actuating shaft. The actuating rod moves the first and second conversion gears on the actuating shaft to be selectively engaged the first and second conversion gears with the output worm wheel. The solenoid valve is arranged in parallel with the actuating rod to apply actuating force to the actuating rod. The elastic spring is installed under the second conversion gear.