PROBLEM TO BE SOLVED: To reduce pressure loss of heat medium inside a heat medium heating device, as well as to enhance heat exchange efficiency, and to downsize the heat medium heating device.SOLUTION: A heat medium heating device 10 comprises: a PTC (Positive Temperature Coefficient) heater 40; a first heat medium flow box 20 which is in close contact with one surface side of the PTC heater 40 and in which a heating medium flow channel 41 is formed; a second heat medium flow box 50 which is in close contact with the other surface side of the PTC heater 40 and in which a second heat medium flow channel 42 is formed, and which is joined to the first heat medium flow box 20; an inlet header space 44 and an outlet header space 45, communicating both upstream end parts of the first and second heat medium flow channels 41, 42 with each other, and both downstream end parts thereof with each other, respectively; an inlet part 47 for causing a heat medium to flow into the inlet header space 44; and an outlet part 48 for causing the heat medium to flow out from the outlet header space 45.SELECTED DRAWING: Figure 5
【課題】熱媒体加熱装置の内部における熱媒体の圧力損失を低減させるとともに、熱交換効率を高め、併せて熱媒体加熱装置のコンパクト化を図る。【解決手段】熱媒体加熱装置10は、PTCヒータ40と、このPTCヒータ40の一面側に密着して内部に第1の熱媒体流通路41が形成された第1の熱媒体流通ボックス20と、PTCヒータ40の他面側に密着して内部に第2の熱媒体流通路42が形成され、且つ第1の熱媒体流通ボックス20に接合される第2の熱媒体流通ボックス50と、前記第1および第2の熱媒体流通路41,42の上流側端部同士および下流側端部同士をそれぞれ連通させるインレットヘッダ空間44およびアウトレットヘッダ空間45と、前記インレットヘッダ空間44に熱媒体を流入させるインレット部47と、前記アウトレットヘッダ空間45から前記熱媒体を流出させるアウトレット部48と、を備えて構成されている。【選択図】図5
HEAT MEDIUM HEATING DEVICE AND VEHICLE AIR CONDITIONER USING THE SAME
熱媒体加熱装置およびこれを用いた車両用空調装置
2017-12-14
Patent
Electronic Resource
Japanese
IPC: | 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 / H05B ELECTRIC HEATING , Elektrische Heizung |
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