Power conversion system

A power conversion system, comprising:

• a housing, which defines a receiving chamber, and has a first opening and a second opening that are in fluid communication with the receiving chamber;
• a liquid cooling plate, disposed in the receiving chamber, the liquid cooling plate having a flow channel for coolant to circulate therein, and a first cooling room and a second cooling room formed on the flow channel, the liquid cooling plate being in fluid communication with an inlet pipeline and an outlet pipeline, one end of the inlet pipeline being in fluid communication with a first end of the flow channel, the other end of the inlet pipeline extending out of the receiving chamber through the first opening, one end of the outlet pipeline being in fluid communication with a second end of the flow channel, and the other end of the outlet pipeline extending out of the receiving chamber through the second opening;
• and
• a circuit board assembly, arranged at one side of the liquid cooling plate and connected to the liquid cooling plate, the circuit board assembly including a circuit board, a first heat-generating component and a second heat-generating component that are electrically connected to the circuit board, the first heat-generating component being attached to the liquid cooling plate and facing the first cooling room, and the second heat-generating component being attached to the liquid cooling plate and facing the second cooling room.