Device for use in shaft bearing to regulate voltage of e.g. alternator of motor vehicle, has heat sink including wings extending from lateral edges of base, where sink comprises additional heat dissipating fin placed between wings

摘要

The device has a support (34), electronic components (28) for controlling an electric machine, and a copper heat sink (30) mounted on the support. The heat sink is in heat exchange relationship with the electronic components. A base (52) is in heat exchange relationship with the electronic components. The sink comprises two wings (32) extending from lateral edges of the base. The sink comprises an additional heat dissipating fin (54) made of copper and placed between the wings. An independent claim is also included for an assembly formed of a regulating device and a current rectifying device.