AIR CONDITIONER FOR VEHICLE
To provide an air conditioner for a vehicle in which energy consumption during heating is reduced by appropriately combining and actuating a plurality of heating units.SOLUTION: An air conditioner 1 for a vehicle comprises: a heat pump cycle 10 having a compressor 11 and a condenser 12; an electric...
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Main Authors | , , , , , , , |
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Format | Patent |
Language | English Japanese |
Published |
04.01.2023
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Subjects | |
Online Access | Get full text |
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Summary: | To provide an air conditioner for a vehicle in which energy consumption during heating is reduced by appropriately combining and actuating a plurality of heating units.SOLUTION: An air conditioner 1 for a vehicle comprises: a heat pump cycle 10 having a compressor 11 and a condenser 12; an electric heater 25; and a heating control unit 60a. The heat pump cycle 10 having the condenser 12 heats blown air that is blown into a cabin by using a cooling medium discharged from the compressor 11 as a heat source. The electric heater 25 generates heat for heating the blown air. The heating control unit 60a controls the heating capacity of the electric heater 25. A first energy consumption by the heat pump cycle 10 is less than a second energy consumption by the electric heater 25. The heating control unit 60a of the air conditioner 1 for a vehicle executes heater combination operation using the electric heater 25 in combination if the rotational frequency of the compressor 11 is a reference rotational frequency KNc or more, and the temperature of the blown air is less than a target blowout temperature TAO.SELECTED DRAWING: Figure 4
【課題】複数の加熱部の適切に組み合わせて作動させることで、暖房時におけるエネルギ消費量を低減させた車両用空調装置を提供する。【解決手段】車両用空調装置1は、圧縮機11及び凝縮器12を有するヒートポンプサイクル10と、電気ヒータ25と、加熱制御部60aと、を備える。凝縮器12を有するヒートポンプサイクル10は、圧縮機11から吐出された冷媒を熱源として車室内へ送風される送風空気を加熱する。電気ヒータ25は、送風空気を加熱する為の熱を発生させる。加熱制御部60aは、電気ヒータ25の加熱能力を制御する。ヒートポンプサイクル10による第1エネルギ消費量は、電気ヒータ25による第2エネルギ消費量よりも少ない。車両用空調装置1の加熱制御部60aは、圧縮機11の回転数が基準回転数KNc以上であり、且つ、送風空気の温度が目標吹出温度TAO未満である場合に、電気ヒータ25を併用するヒータ併用運転を実行する。【選択図】図4 |
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Bibliography: | Application Number: JP20210100852 |