Patent ID: 8689860
Filing Date: 2014-04-08
Classification: B60H

Abstract:
1. A vehicular air conditioning apparatus comprising: a casing mounted in the vehicle and having a plurality of passages therein through which air flows; a cooling heat exchanger for cooling the air comprising first and second cooing sections separated by a first portioning means, and a heating heat exchanger for heating the air comprising first and second heating section separated by a second portioning means; a first blower for blowing the air toward a seat or a group of seats on a forward side of the vehicle; a first air mixing damper for adjusting a first passage through which air that is blown from the first blower flows and air comes from the first cooling section and enters into the first heating section and for adjusting the temperature of the air; a second blower for blowing the air that is blown out toward a seat or group of seats on a mid and/or rearward side of the vehicle; a second air mixing damper for adjusting a second passage through which air that is blown from the second blower flows and air comes from the second cooling section and enters into the second heating section and for adjusting the temperature of the air; and a pair of communication switching dampers for switching a communication state between the first passage and the second passage and between a downstream side of the cooling heat exchanger and an upstream side of the heating heat exchanger of the first passage and the second passage, wherein the pair of communication switching dampers respectively opens and closes a pair of openings disposed between the first passage and the second passage and between the downstream side of the cooling heat exchanger and the upstream side of the heating heat exchanger so that the pair of communication switching dampers establishes and blocks air flow communication between the first passage and the second passage and between the downstream side of the cooling heat exchanger and the upstream side of the heating heat exchanger; the first passage comprises a pair of passages made up of a passage through which air flows that is blown to a driver's seat side in a vehicle compartment and a passage through which air flows that is blown toward a passenger seat side in the vehicle compartment, and the pair of communication switching dampers are disposed side-by-side in a widthwise direction of the vehicle in one passage and another passage of the pair of passages respectively; one of the communication switching dampers, which is disposed in the one passage through which air flows to the driver's seat side, and another of the communication switching dampers, which is disposed in the other passage through which the air flows to the passenger seat side, are disposed for rotation separately and independently from each other; the communication switching dampers are rotated toward a side of the second passage, whereby air that is blown from the second blower is made to flow toward a side of the first passage.