Air conditioner for vehicle

• US 20080248736A1
• Filed: 03/31/2008
• Published: 10/09/2008
• Est. Priority Date: 04/03/2007
• Status: Abandoned Application

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: Aoki, Shinji, Kataoka, Takuya
• Application Number:
  US12/080,222
• Publication Number:
  US 20080248736A1
• Time in Patent Office: Days
• US Class Current: 454/75
• CPC Class Codes: B60H 1/00742 by detection of the vehicle occupants' presence; by detection of conditions relating to the body of occupants, e.g. using radiant heat detectors
• CPC Class Codes: B60H 1/00871 Air directing means, e.g. blades in an air outlet construction of nozzles or air diffusers B60H1/34

Abstract

An air conditioner for a vehicle includes an air conditioning unit for generating a conditioned air, an air-blowing outlet portion for blowing the conditioned air toward a target portion of a passenger in a passenger compartment of the vehicle, and a control unit adapted to conduct a cool-down control. The target portion includes a face area, a seat-contact portion and a hand area of the passenger, the seat-contact portion contacting a seat of the vehicle. The cool-down control includes a first blowing operation for blowing the conditioned air from the air-blowing outlet portion toward the face area, a second blowing operation for blowing the conditioned air from the air-blowing outlet portion toward the seat-contact portion and a third blowing operation for blowing the conditioned air from the air-blowing outlet portion toward the hand area. The first blowing operation, the second blowing operation and the third blowing operation successively begun.

Claims

1. An air conditioner for a vehicle, comprising:

an air conditioning unit for generating a conditioned air;

an air-blowing outlet portion in communication with the air conditioning unit and capable of blowing the conditioned air toward a target portion including a face area, a seat-contact portion and a hand area of a passenger in a passenger compartment of the vehicle, the seat-contact portion contacting a seat of the vehicle; and

a control unit adapted to conduct a cool-down control including a first blowing operation for blowing the conditioned air from the air-blowing outlet portion toward the face area, a second blowing operation for blowing the conditioned air from the air-blowing outlet portion toward the seat-contact portion and a third blowing operation for blowing the conditioned air from the air-blowing outlet portion toward the hand area, wherein

the first blowing operation, the second blowing operation and the third blowing operation successively begun.

2. The air conditioner according to claim 1, wherein

the second blowing operation is begun while performing the first blowing operation, and

the third blowing operation is begun while performing the first and second blowing operations.

3. The air conditioner according to claim 1, wherein

the second blowing operation is begun after the first blowing operation is finished, and

the third blowing operation is begun after the second blowing operation is finished.

4. The air conditioner according to claim 1, wherein

the target portion further includes an upper body area that corresponds to at least one of a chest portion and an arm portion of the passenger, and

the cool-down control further includes a fourth blowing operation for blowing the conditioned air toward the upper body area, wherein

the fourth blowing operation is begun after the third blowing operation is begun.

5. The air conditioner according to claim 1, wherein

the air-blowing outlet portion includes a face air-blowing port, and

the first blowing operation is performed by blowing the conditioned air from the face air-blowing port toward the hand area.

6. The air conditioner according to claim 1, further comprising:

an air-flow direction adjustment device disposed in the air-blowing outlet portion for adjusting a flow direction of the conditioned air blown from the air-blowing outlet portion; and

a temperature detecting device configured to detect a surface temperature of the target portion of the passenger, wherein

when the surface temperature detected by the temperature detecting device is equal to or lower than a predetermined temperature, the control unit swings the air-flow direction adjustment device such that the conditioned air is blown from the air-blowing outlet portion toward the target portion in a swinging manner.

7. The air conditioner according to claim 1, further comprising:

an air suctioning portion disposed adjacent to the seat in the passenger compartment and defining a suction port for suctioning the conditioned air blown from the air-blowing outlet portion, wherein

the cool-down control includes an air suctioning operation for suctioning the conditioned air blown from the air-blowing outlet portion by at least one of the first to third operations.

8. The air conditioner according to claim 1, further comprising:

a passenger detecting device for detecting a seated condition of the passenger, wherein

the cool-down control is conducted for the passenger detected by the passenger detecting device.

9. The air conditioner according to claim 8, wherein

when it is detected by the passenger detecting device that only a driver'"'"'s seat of the vehicle is occupied by a passenger, the coo-down control is conducted toward the driver'"'"'s seat.

10. The air conditioner according to claim 8, wherein

the air conditioning unit includes a first unit for generating a conditioned air to be blown toward a right space of the passenger compartment and a second unit for generating a conditioned air to be blown toward a left space of the passenger compartment, and

when the passenger detecting device detects a passenger only in one of the right space and the left space of the passenger compartment, one of the first and second units, which corresponds to the space in which the passenger is detected, is operated.

11. The air conditioner according to claim 8, wherein

the air-blowing outlet portion is provided in each of a right space and a left space of the passenger compartment, and

when the passenger detecting device detects a passenger only in one of the right space and the left space of the passenger compartment, the conditioned air is blown from the air-blowing outlet portion that is provided in the space in which the passenger is detected.

12. The air conditioner according to claim 1, wherein

the air-blowing outlet portion includes a face air-blowing port formed on an instrument panel of the vehicle and a seat air-blowing port formed in the seat,

the first and this blowing operations are performed by blowing the conditioned air from the face air-blowing port, and

the second blowing operation is performed by blowing the conditioned air from the seat air-blowing port.