The heat medium heating device is provided with the following: a plurality of flat heat exchange tubes in which U-turn flow channels are formed; a heat medium inlet and outlet header to which heat medium inlet and outlet pipes are connected, and to which one end of each of the flat heat exchange tubes is connected at predetermined intervals and is jointed by brazing; and a plurality of sets of PTC heaters stacked between the flat heat exchange tubes. A heat exchange element comprising the flat heat exchange tubes, the heat medium inlet and outlet header, and the PTC heaters is sandwiched between a holding plate or a bottom face of a housing and a substrate mount, and is accommodated and installed within the housing in a state where the flat heat exchange tubes and the PTC heaters are in close contact.
HEAT MEDIUM HEATING DEVICE, METHOD OF MANUFACTURING SAME, AND VEHICLE AIR CONDITIONING DEVICE USING SAME
2016-03-10
Patent
Electronic Resource
English
IPC: | F24H FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL , Erhitzer für flüssige oder gasförmige Stoffe, z.B. Wasser- oder Lufterhitzer mit Vorrichtungen zur Wärmeerzeugung, allgemein / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B23P Sonstige Metallbearbeitung , OTHER WORKING OF METAL |
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