Patent ID: 9467030
Filing Date: 2016-10-11
CPC Classification: B25F,H02K,Y10T

Claim Text:
1. An electric machine comprising: a housing including at least one air intake, an air outlet, and an air passage extending between the at least one air intake and the air outlet; a substantially air-tight electronics enclosure comprising a first heat sink positioned at least partially within the air passage; a substantially air-tight motor enclosure, wherein said electronics enclosure and said motor enclosure are substantially thermally isolated from each other within said housing at least partially by the air passage; a second heat sink positioned within said motor enclosure and at least partially within the air passage downstream of said first heat sink, wherein a cooling airflow through the at least one air intake flows through the air passage to cool said first heat sink and said second heat sink before the cooling airflow is exhausted through the air outlet; and a fan positioned within said motor enclosure and at least partially within the air passage between said first heat sink and said second heat sink, said fan configured to draw the cooling airflow into the electric machine through the at least one air intake and across said first heat sink.