INSULATED GATE BIPOLAR TRANSISTOR HEAT DISSIPATION STRUCTURE OF MOTOR CONTROLLER

摘要

An Insulated gate bipolar transistor (IGBT) heat dissipation structure of a motor controller is provided. The heat dissipation structure includes a control cabinet (1), a circuit board (2), several heat sinks (3) and IGBT modules (4).The circuit board (2) is mounted inside of the control cabinet (1).Each heat sink (3) includes a side wall (31) mounted tightly opposed to the inside wall of the control cabinet (1) and a heat dissipation lug (32) protruding from the side wall (31).A pin terminal (41) extending from the IGBT module (4) mounted on the heat dissipation lug (32) is electrically connected with the circuit board (2). The heat dissipation structure with simple construction, convenient installation and reasonable layout can obtain better heat dissipation effect.