Patent ID: 8443872
Filing Date: 2013-05-21
Classification: B60H,F28D,F28F

Abstract:
1. A heat exchanger for use in a vehicular air conditioning apparatus having a casing including a plurality of passages therein through which air flows, and a damper mechanism for switching a flow state of the air in the passages, wherein the heat exchanger is disposed in the interior of the casing and performs temperature adjustment by carrying out heat exchange on the air to be supplied therefrom, the heat exchanger comprising: a plurality of first tubes, which are disposed upstream of the heat exchanger with respect to a direction of flow of the air that flows through the interior of the casing, the first tube extending along a width direction that is perpendicular to the direction of flow of the air, a medium flowing through the interior of the first tubes; a plurality of second tubes, which are disposed downstream of the first tubes with respect to the direction of flow of the air, the medium flowing through the interior of the second tubes; first fins disposed between the first tubes adjacent to each other and between the second tubes adjacent to each other, the first fins being bent in an undulating shape in their cross sections and having air holes therein through which the air flows; and partitioning means which is arranged along a direction in which the first and second tubes extend respectively, between the first and second tubes, the partitioning means effecting separation between a first heat exchange section and a second heat exchange section in said heat exchanger, the first heat exchange section carrying out heat exchange on the air that flows through a first passage of the casing, and the second heat exchange section carrying out heat exchange on the air that flows through a second passage of the casing, wherein the partitioning means is disposed at a boundary portion between the first heat exchange section and the second heat exchange section, and is made up of a second fin that has the same cross-sectional shape as the first fins and does not include the air holes therein, the partitioning means blocks air communications between the first heat exchanger section and the second heat exchanger section.