| 摘要 |
The utility model provides a power conversion device which is provided with a unit playing a cooling role on radiating semiconductor switch elements. In other words, active air flow can be formed to perform cooling effectively. The power conversion device comprises a radiator (3), a first pipeline (14) and an air supply fan, wherein the power conversion device converts direct current power obtained through renewable energy into alternating current power and supplies the power to systems, the radiator (3) is accommodated on the upper side of the back side and provided with an air suction port, a frame body with an exhaust port is arranged on the lower surface, semiconductor switching elements of an intelligent power module (IPM) arranged between a control substrate deployed parallel with the back side and the back side are mounted on the radiator (3) in a heat conductive mode; the first pipeline (14) accommodates a cooling fin (3A) of the radiator to form a first wind path (W1); and the air supply fan is arranged on the side of the air suction port of the pipeline, the air supply fan and the air suction port are deployed into a roughly right angle relation, and reactors (L1-L3) and capacitors (C1-C4) for forming filters are deployed on two sides on the outside of the pipeline respectively. |
