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Heat exchanger for vehicular air conditioning apparatus

a technology for vehicular air conditioning and heat exchangers, which is applied in indirect heat exchangers, light and heating apparatus, transportation and packaging, etc., can solve the problems of deterioration of the cooling effectiveness of the evaporator, and achieve the effect of preventing freezing in the heat exchanger and stable operating characteristics

Inactive Publication Date: 2011-03-31
KEIHIN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]A general object of the present invention is to provide a heat exchanger for use in a vehicular air conditioning apparatus, which is capable of preventing freezing in the heat exchanger due to moisture becoming frozen and adhering to surfaces of the heat exchanger, in order to obtain stable operating characteristics.

Problems solved by technology

As a result, the ventilation passageways inside the evaporator become narrowed, and there is a concern that the cooling effectiveness of the evaporator will be deteriorated.

Method used

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  • Heat exchanger for vehicular air conditioning apparatus
  • Heat exchanger for vehicular air conditioning apparatus
  • Heat exchanger for vehicular air conditioning apparatus

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Embodiment Construction

[0024]A preferred embodiment concerning a heat exchanger for use in a vehicular air conditioning apparatus according to the present invention shall be explained in detail below with reference to the accompanying drawings. In FIG. 1, reference numeral 10 indicates a vehicular air conditioning apparatus according to an embodiment of the present invention. The vehicular air conditioning apparatus 10, for example, is installed in a vehicle having three rows of seats arranged along the direction of travel of the vehicle. In the following descriptions, the first row of seats in the vehicle compartment of the vehicle is designated as front seats, the second row of seats is designated as middle seats, and the third row of seats is designated as rear seats.

[0025]Further, the vehicular air conditioning apparatus 10 is installed so that the right-hand side thereof shown in FIG. 2 (in the direction of arrow A) is oriented toward the front side of the vehicle, whereas the left-hand side (in the ...

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Abstract

In an evaporator that constitutes part of a vehicular air conditioning apparatus, a sensor is provided, which is capable of detecting the temperature in the evaporator. In the evaporator, the sensor is installed on a back surface side thereof facing a downstream side, and on a first cooling section, through which air from a first blower unit flows. Also, the sensor is installed at a position in the vicinity of a supply conduit that supplies a coolant medium with respect to the evaporator. At a region where a maximum low temperature in the evaporator occurs, and for which there is a fear of freezing due to moisture contained within the air, the temperature is detected by the sensor.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a heat exchanger, which is installed in a vehicular air conditioning apparatus that performs temperature adjustment of a vehicle compartment, whereby the heat exchanger is used by the vehicular air conditioning apparatus for cooling and heating of air that is blown into the vehicle compartment.[0003]2. Description of the Related Art[0004]In a vehicular air conditioning apparatus that is mounted in a vehicle, internal and external air is drawn into a casing by a blower, and after cooled air, which has been cooled by a heat exchanger that forms a cooling means, and heated air, which has been heated by a heat exchanger that forms a heating means, are mixed together in the casing at a predetermined mixing ratio, the mixed air is blown out from defroster blow-out ports, face blow-out ports, or foot blow-out ports arranged in the vehicle compartment, whereby adjustment of temperature and humid...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F28F27/02F28F1/10
CPCB60H1/00328F28F27/02F28D1/05391F28D1/0417
Inventor SETO, TAKAHIRO
Owner KEIHIN CORP
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