초록 ▼

An automotive air conditioner includes an air-conditioning case in which air passageways having a cold air path via an evaporator, a warm air path via a heater core, and a plurality of discharge path systems communicating with outlets, respectively, are formed. An air mix door distributes cold air a

An automotive air conditioner includes an air-conditioning case in which air passageways having a cold air path via an evaporator, a warm air path via a heater core, and a plurality of discharge path systems communicating with outlets, respectively, are formed. An air mix door distributes cold air and warm air by an opening degree to each of the discharge path systems via a junction region of the cold air and the warm air, and a rotary door having a cross wall is rotatably disposed in the junction region of the cold air and the warm air and blocks air flow from the junction region to the downstream side by the cross wall in an advanced position. The rotary door and the air mix door include an overlap layout which uses a door space inside the cross wall of the rotary door in the advanced position as an opening and closing operation space of the air mix door.

대표청구항 ▼

1. An automotive air conditioner, comprising: an air-conditioning case having air passageways including a cold air path through an evaporator, a warm air path through a heater core, and a plurality of discharge paths communicating with respective outlets;an adjustable air mix door for adjusting a di

1. An automotive air conditioner, comprising: an air-conditioning case having air passageways including a cold air path through an evaporator, a warm air path through a heater core, and a plurality of discharge paths communicating with respective outlets;an adjustable air mix door for adjusting a distribution of cold air and warm air flowing into said discharge paths through a junction region of the cold air and the warm air by adjusting an amount of opening of said cold air path and said warm air path; anda wedge-shaped rotary door having a pair of side walls and a cross wall connecting distal ends of said side walls, said rotary door being rotatable about an axis connecting base ends of said side walls, said rotary door being rotatable between a withdrawal position and an advanced position, in which said cross wall impedes air flow from said junction region to an area downstream of said junction region;wherein said rotary door has a door space formed within and defined by said side walls and said cross wall of said rotary door, said air mix door and said rotary door being arranged and configured so that a portion of an opening-and-closing space of said air mix door overlaps with said door space of said rotary door when said rotary door is in the advanced position such that a portion of said air mix door is located within said door space when said rotary door is in the advanced position and said air mix door is open at least a minimal amount;wherein said rotary door is configured so that said door space forms a portion of said cold air path and a portion of said warm air path; andwherein a seal face distance of said rotary door from a door shaft of said rotary door to said cross wall at a front side of said rotary door is shorter than a seal face distance of said rotary door from said door shaft to said cross wall at a tip side of said rotary door, and a seal face width of said cross wall at said front side is shorter than a seal face width of said cross wall at said tip side. 2. The automotive air conditioner of claim 1, wherein said air mix door is located between said evaporator and said heater core with respect to a direction of air flow through said evaporator. 3. The automotive air conditioner of claim 1, wherein said air mix door comprises a cold-air-side air mix door, said automotive air conditioner further comprising a warm-air-side air mix door. 4. The automotive air conditioner of claim 3, wherein each of said cold-air-side air mix door and said warm-air-side air mix door is located between said evaporator and said heater core with respect to a direction of air flow through said evaporator. 5. The automotive air conditioner of claim 1, wherein said rotary door comprises a foot door configured so that said cross wall blocks a foot discharge path system when said rotary door is in the withdrawal position, and blocks the air flow from said junction region to said area downstream of said junction region when said rotary door is in the advanced position; and wherein said air mix door comprises a cold-air-side air mix door for controlling an opening area of said cold air path through said evaporator. 6. The automotive air conditioner of claim 1, further comprising a warm air path blocking plate downstream of said heater core, said warm air path blocking plate being configured to block a portion of the warm air path. 7. The automotive air conditioner of claim 6, wherein said warm air path blocking plate is integrally formed with said rotary door. 8. The automotive air conditioner of claim 7, wherein each of said side walls of said rotary door is approximately fan-shaped, and said rotary door includes a door shaft located at said axis connecting said base ends of said side walls, said rotary door rotates about said door shaft, said door shaft being rotatably supported to said air-conditioning case; and said warm air path blocking plate is arranged to cover a part of said door space so as to be surrounded by and connected to each of said side walls and to said cross wall at a front side of said rotary door. 9. The automotive air conditioner of claim 8, wherein said door shaft of said rotary door comprises concentric double shafts, a first one of said concentric double shafts having a warm air path blocking door for blocking a portion of the warm air path not blocked by said warm air path blocking plate when said rotary door is closed, and for opening said portion of the warm air path not blocked by said warm air path blocking plate when said rotary door is opened. 10. The automotive air conditioner of claim 6, wherein said warm air path blocking plate is integrally formed with said air-conditioning case. 11. The automotive air conditioner of claim 10, wherein said warm air path blocking plate is configured to extend from an end portion of a first foot opening seal face of said air conditioning case, said first foot opening seal face being configured to contact an end portion of a seal face at a front side of said rotary door when said rotary door is in the withdrawal position.