BATTERY THERMAL MANAGEMENT SYSTEM FOR HYBRID VEHICLE

본 발명은 하이브리드 차량용 배터리 열관리 시스템에 관한 것으로, 제1열교환매체가 순환되며 배터리모듈과 열교환하는 열관리유닛과, 제2열교환매체가 순환되며 배기가스로부터 열을 회수하는 배기열회수유닛과, 압축기, 응축기, 팽창밸브 및 증발기를 구비하여 제3열교환매체가 순환되는 사이클유닛과, 배기열회수유닛으로부터 분기되고, 배터리모듈의 온도가 상승되도록 제2열교환매체를 제1열교환매체와 열교환시키는 제1가열유닛과, 사이클유닛으로부터 분기되고, 배터리모듈의 온도가 상승되도록 제3열교환매체를 제1열교환매체와 열교환시키는 제2가열유닛 및 사이클유닛으로부터 분기되고, 배터리모듈의 온도가 하강되도록 제3열교환매체를 제1열교환매체와 열교환시키는 냉각유닛을 포함하는 것을 특징으로 한다. The present invention relates to a battery heat management system for a hybrid electric vehicle, the system comprising: a heat management unit through which a first heat exchange medium is circulated and which exchanges heat with a battery module; an exhaust heat recovery unit through which a second heat exchange medium is circulated and which recovers heat from exhaust gas; a cycle unit which has a compressor, a condenser, an expansion valve, and an evaporator and through which a third heat exchange medium is circulated; a first heating unit which is branched from the exhaust heat recovery unit and causes the second heat exchange medium to exchange heat with the first heat exchange medium so as to increase the temperature of the battery module; a second heating unit which is branched from the cycle unit and causes the third heat exchange medium to exchange heat with the first heat exchange medium so as to increase the temperature of the battery module; and a cooling unit which is branched from the cycle unit and causes the third heat exchange medium to exchange heat with the first heat exchange medium so as to decrease the temperature of the battery module.