Provided is a cooling device for hybrid vehicles capable of effectively exchanging heat between cooling water in an engine cooling circuit and a refrigerant in an electrical system cooling circuit and appropriately and quickly cooling and raising the temperature of an internal combustion engine and an electrical system device. A cooling device 1 for hybrid vehicles comprises: an engine cooling circuit 3 that circulates cooling water; an electrical system cooling circuit 6 that circulates a refrigerant; and a heat exchanger 7 that exchanges heat between the cooling water and the refrigerant. The engine cooling circuit 3 is equipped with: a main circuit 11 capable of constantly circulating cooling water; a radiator circuit 12 which circulates cooling water between an internal combustion engine 2 and a radiator 8; a heat-exchanging cooling water flow part 13 for returning the cooling water flowing out through the heat exchanger 7 to the main circuit 11, the heat-exchanging cooling water flow part 13 being configured so as to allow the cooling water to flow therethrough; and a three-way valve 14 which is disposed at the upstream end of the heat-exchanging cooling water flow part 13 and which is capable of switching the flow path of the cooling water so as to allow the cooling water flowing out from one of the internal combustion engine 2 and the radiator 8 to flow into the heat exchanger 7.
提供能够在内燃机冷却回路的冷却水与电气系统冷却回路的制冷剂之间高效地进行热交换并能适当且迅速地进行内燃机及电气系统设备的冷却及升温的混合动力车辆的冷却装置。混合动力车辆的冷却装置(1)具备:内燃机冷却回路(3),使冷却水循环;电气系统冷却回路(6),使制冷剂循环;以及热交换器(7),在冷却水与制冷剂之间进行热交换,内燃机冷却回路(3)具备:主回路(11),能供冷却水始终循环;散热器回路(12),使冷却水在内燃机(2)与散热器(8)之间循环;热交换用冷却水流通部(13),构成为能够供冷却水流通,用于将通过热交换器(7)而流出的冷却水返回到主回路(11);以及三通阀(14),设置于热交换用冷却水流通部(13)的上游端部,能切换冷却水的流路以允许从内燃机(2)及散热器(8)中的一方流出的冷却水流入热交换器(7)。
COOLING DEVICE FOR HYBRID VEHICLES
混合动力车辆的冷却装置
2021-09-03
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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