Vehicle air conditioner air volume and air direction control device and system thereof

The invention relates to a vehicle air conditioner air volume and air direction control device. The device comprises an exhaust pipe orifice and an adjusting knob; the adjusting knob is arranged on one side of the exhaust pipe orifice; the adjusting knob comprises a knob main body, a rotating shaft, a horseshoe type resistance body, an exhaust baffle plate and a slide arm; the knob main body is fixed on the rotating shaft; the horseshoe type resistance body is arranged at the bottom of the knob main body; the exhaust baffle plate is fixedly connected with the rotating shaft; the slide arm is used for changing a resistance value of the horseshoe type resistance body; and when the slide arm is arranged to be in a gap of the horseshoe type resistance body, the exhaust pipe orifice is totallyshielded by the exhaust baffle plate. Different from the prior art, the device can synchronously adjust the air volume and the air direction only by rotating the adjusting knob, so that the passengercomfort is improved, and t