Vehicle air conditioner with rotary door

An air conditioner for a vehicle having a passenger compartment, the air conditioner comprising:

• an air conditioning case defining an air passage through which air flows into the passenger compartment, the air conditioning case having a plurality of opening portions through which air is blown toward different zones in the passenger compartment;
• a heat exchanging portion having at least a heating heat exchanger for heating air, the heat exchanging portion being disposed in the air conditioning case;
• and
• a rotary door disposed in the air conditioning case at an upper side of the heat exchanging portion to be rotated in a range of a rotation space provided in the air conditioning case, the rotary door having a circumference wall surface rotatable around a rotation shaft to open and close the opening portions;
• wherein:
• the rotation space is provided in the air conditioning case to extend from an upper portion of the heating heat exchanger to a side portion of the heating heat exchanger;
• the opening portions include a foot opening through which air is blown toward a lower side in the passenger compartment, a face opening through which air is blown toward an upper side in the passenger compartment, and a defroster opening through which air is blown toward an inner surface of a windshield of the vehicle;
• the rotary door further includes a plate door member disposed at a radial inner side of the circumference wall surface to be integrally rotated with the circumference wall surface;
• the rotary door is disposed, such that the face opening and the defroster opening are opened and closed by the circumference wall surface, and the foot opening is opened and closed by the plate door member;
• the rotary door further includes two side plates connected to the circumference wall surface and the rotation shaft at two end sides in an axial direction of the rotation shaft;
• one end of the plate door member in a rotation direction of the rotary door has a first plate door connected to one of the side plates to be integrally rotated with the circumference wall surface and to open and close the foot opening;
• the other end of the plate door member in the rotation direction of the rotary door has a second plate door for opening and closing the foot opening;
• and
• the first plate door and the second plate door are connected through a connection portion that penetrates through the foot opening.

An air conditioner for a vehicle having a passenger compartment, the air conditioner comprising:

• an air conditioning case defining an air passage through which air flows into the passenger compartment, the air conditioning case having a plurality of opening portions through which air is blown toward different zones in the passenger compartment;
• a heat exchanging portion for performing a heat exchange with air, the heat exchanging portion being disposed in the air conditioning case;
• and
• a rotary door disposed in the air conditioning case at a downstream side of the heat exchanging portion, the rotary door having a circumference wall surface rotatable around a rotation shaft to open and close the opening portions, wherein:
• the air conditioning case has a maximum passage dimension (L) at an upstream side of the rotary door in a direction perpendicular to an axial direction of the rotary shaft;
• and
• the rotary door has an outer diameter (D) equal to or larger than 0.8 times of the maximum passage dimension.

An air conditioner for a vehicle having a passenger compartment, the air conditioner comprising;

• an air conditioning case defining an air passage through which air flows into the passenger compartment, the air conditioning case having a plurality of opening portions through which air is blown toward different zones in the passenger compartment;
• a heat exchanging portion for performing a heat exchange with air, the heat exchanging portion being disposed in the air conditioning case;
• and
• a rotary door disposed in the air conditioning case at a downstream side of the heat exchanging portion on an upper side of the heat exchanging portion, the rotary door having a circumference wall surface rotatable around a rotation shaft to open and close the opening portions, wherein:
• the heat exchanging portion has a heating heat exchanger for heating air;
• the heating heat exchanger is disposed in the air conditioning case to form a cool air bypass passage through which air bypasses the heating heat exchanger;
• the air conditioning case includes a guide member which is disposed at an upper side of the heating heat exchange to guide at least one of air passing through the cool air bypass passage to an upper side of the heating heat exchanger, and air passing through the heating heat exchanger to the upper side of the heating heat exchanger;
• and
• the rotation shaft is disposed at a lower side of a top end of the guide member.