FUEL CELL SYSTEM

• Main Authors: MATSUMOTO HIROTSUGU, UEDA KENICHIRO, TARUIE KENJI, NAKAI KAZUTAKA, YAMAZAKI KAZUMI
• Format: Patent
• Language: English; Japanese
• Published: 22.06.2015
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide a fuel cell system that promotes warming-up of a fuel cell.SOLUTION: A fuel cell system S1 includes: a fuel cell 10; a radiator 42 for dissipating heat of a refrigerant; a thermostat valve 44 for switching a circulation direction of the refrigerant; an air conditioning refrigerant channel (pipes d1-d4) of which one end is connected to refrigerant discharge channels (pipes c4 and c5) at a downstream side of a connection part with a bypass pipe c6 and the other end is connected to refrigerant supply channels (pipes c1-c3) at an upstream side of the connection part with the bypass pipe c6; and an ECU 80 that starts warming-up in the case where a temperature of the fuel cell 10 is equal to or lower than a predetermined threshold value. During the execution of warming-up, the ECU 80 drives a refrigerant pump 61 of the air conditioning refrigerant channel and supplies generation power of the fuel cell 10 to a heater 62 for refrigerant heating. 【課題】燃料電池の暖機を促進する燃料電池システムを提供する。【解決手段】燃料電池システムＳ１は、燃料電池１０と、冷媒を放熱させるラジエータ４２と、冷媒の通流方向を切り替えるサーモスタットバルブ４４と、バイパス配管ｃ６との接続箇所よりも下流側の冷媒排出流路（配管ｃ４，ｃ５）に一端が接続され、バイパス配管ｃ６との接続箇所よりも上流側の冷媒供給流路（配管ｃ１〜ｃ３）に他端が接続される空調用冷媒流路（配管ｄ１〜ｄ４）と、燃料電池１０の温度が所定閾値以下である場合に暖機を開始するＥＣＵ８０と、を備え、ＥＣＵ８０は暖機の実行中、空調用冷媒流路の冷媒ポンプ６１を駆動すると共に、燃料電池１０の発電電力を冷媒加熱用ヒータ６２に供給する。【選択図】図１