Electric power unit
An electric power unit having a heat emitting component includes a battery case provided in an extension direction of an output shaft of the motor, and spaced apart from the motor case, and a cooling fan provided between the battery case and the motor case. The battery case includes a discharge port formed at a position facing the cooling fan, and a suction port provided at a position spaced apart from the discharge port.
1. An electric power unit comprising:
a motor case configured to accommodate a motor;
a component case configured to accommodate a component to be cooled, the component case provided in an extension direction of an output shaft of the motor, and spaced apart from the motor case;
a centrifugal fan provided between the component case and the motor case; and
a dock configured to support the component case,
wherein the dock includes a partition wall between the component case and the motor case, and the motor case and the partition wall form a discharge channel connecting an outlet to outside, and
the partition wall includes a connection hole formed at a position facing the centrifugal fan.
2. The electric power unit according to claim 1 , wherein the centrifugal fan is attached to the output shaft.
3. The electric power unit according to claim 1 , wherein the component case includes:
a discharge port formed on a side facing the motor case, and
a suction port provided at a position spaced apart from the discharge port.
4. The electric power unit according to claim 3 , wherein the discharge port is formed at a position facing the centrifugal fan.
5. The electric power unit according to claim 1 , wherein the dock is formed along the motor case.
6. The electric power unit according to claim 1 , wherein the outlet faces in a direction away from the component case, and is provided at a position spaced apart from an inlet.
7. The electric power unit of claim 1 , wherein the component to be cooled is a battery, and the battery has a lower endurance temperature than the motor.