TH72191A - Air conditioning after the carrier - Google Patents

Abstract

DC60 (11/04/48) This rear air conditioning system is installed at the rear of the vehicle and supplies cooled air to the rear seating area of the passenger compartment. The rear air conditioning unit consists of a box, a cooling heat exchanger, a heating heat exchanger, and a bypass for guiding the warm air. The box includes an inlet through which air is blown from the blower inlet, an exhaust outlet, and a floor outlet. The cooling heat exchanger and heating heat exchanger are installed in a way that allows air to flow inside the box. The bypass extends from the outlet of the heating heat exchanger to the floor outlet until the warm air that has passed through the cooling heat exchanger can be released directly to the outside outlet. Therefore, the rear air conditioning can offer improved efficiency in controlling the vertical temperature difference in the cool-warm air mixing mode. The air blown from the blower inlet, exhaust outlet, and floor outlet, the cooling heat exchanger, and the heating heat exchanger are installed in a way that creates airflow inside the enclosure. Bypassing the heating heat exchanger outlet to the floor outlet allows warm air that has passed through the cooling heat exchanger to be released directly to the outside outlet. Therefore, the rear air conditioning unit can offer improved efficiency in controlling the vertical temperature difference in the cool-warm air mixing mode.

Claims (7)

1. The rear air conditioner is installed at the rear of the vehicle and supplies cooled air to the rear seating area of the vehicle's passenger compartment. The rear air conditioner consists of a box (30) which contains an inlet (32) through which air blown from the blower (31) enters the exhaust outlet (33), passes through it and the floor outlet (34), the cooling heat exchanger (41) and the heating heat exchanger (42) installed in the airflow path created inside the box (30). Specifically, the rear air conditioner consists of a mixing chamber (44) and a single bypass path (45) passing through the said mixing chamber (44) and is created inside the box (30) to expand from the outlet (421) of the heating heat exchanger (42) to the floor outlet (34) so that a portion of the air that has passed through the heating heat exchanger (42) can be released directly into the floor outlet (34) through the said bypass path (45) in order to raise the temperature of the air at the floor outlet (34) above the temperature of the air at the rear. Ventilation outlets (33) 2. The rear air conditioning of claim 1 is characterized by a bypass route created by the attachment of a cover (45) consisting of a body (45a) extending from the outlet (421) of the heating heat exchanger (42) to the floor outlet (34) and fins (45b) built into the body (45a) and in contact with the inside of the box (30). 3. The rear air conditioning of Requisition 1 is characterized by a bypass path (45) constructed with a pipe (55) extending from the outlet (421) of the heating heat exchanger (42) to the floor outlet (34). 4. The rear air conditioning of claim 1 is characterized by the cross-sectional area of the entrance to the bypass route (845) being between 15 and 50% of the cross-sectional area of the outlet (421) of the heat exchanger for heating (42). 5. The rear air conditioning of Requirement 1 is characterized by the exit of the bypass lane (45) being positioned outside the rotation range of the modal door (48) so as not to interfere with the modal door (48) which is opened or closed to control the airflow to the ventilation outlet (33) and floor outlet (34). 6. The rear air conditioning of Requisition 1 is characterized by the exit of the bypass route (45) being positioned so that air released from the bypass route (45) can be directed by the modal gate (48) to be supplied to the floor outlet (34). 7. The rear air conditioning unit of Claim 1 is characterized by the floor outlet (34) being placed close to the heat exchanger for cooling (41).