Electromechanical integration unit
The electromechanical integration unit includes a motor housed in a first chamber of the housing, and a first electrical unit and a second electrical unit housed in a second chamber of the housing. The housing includes multiple motor terminals arranged in the second chamber. The first electrical unit includes multiple first terminals arranged together with the motor terminals. The second electrical unit includes multiple motor terminals and multiple second terminals connected to the first terminals. The first electrical component of the first electrical unit, together with the second electrical component of the second electrical component, constitutes a power control circuit for controlling the power supplied to the motor. A service hole is provided in the second chamber of the housing, and the motor terminals and the first terminal are connected to the second terminals in a range exposed to the outside through the service hole.
1. An electromechanical integration unit mounted on a vehicle, the electromechanical integration unit comprising:
a housing provided with a first chamber and a second chamber;
at least one motor housed in the first chamber of the housing and connected to a wheel of the vehicle;
a first electrical unit housed in the second chamber of the housing and provided with at least one first electrical component; and
a second electrical unit housed in the second chamber of the housing and provided with at least one second electrical component, wherein:
the housing is provided with a plurality of motor terminals disposed in the second chamber and electrically connected to the at least one motor;
the first electrical unit is provided with a plurality of first terminals electrically connected to the at least one first electrical component and disposed together with the motor terminals;
the second electrical unit is provided with a plurality of second terminals electrically connected to the at least one second electrical component and connected to the motor terminals and the first terminals;
the at least one first electrical component of the first electrical unit constitutes a power control circuit that controls power supplied to the at least one motor together with the second electrical component of the second electrical unit;
a service hole is provided in the second chamber of the housing; and
the motor terminals and the first terminals are connected to the second terminals in a range that is externally exposed through an opening of the service hole.
2. The electromechanical integration unit according to claim 1 , wherein:
the housing includes
a housing body provided with an opening portion in the second chamber, and
a cover plate detachably attached to the opening portion of the housing body; and
the second electrical unit is fixed to the cover plate together with the second terminals.
3. The electromechanical integration unit according to claim 1 , wherein the first terminals are disposed in a straight line together with the motor terminals.
4. The electromechanical integration unit according to claim 3 , wherein the first terminals include a pair of terminals, each of which is disposed on each side of the motor terminals.
5. The electromechanical integration unit according to claim 1 , wherein the at least one first electrical component includes a reactor.
6. The electromechanical integration unit according to claim 5 , wherein:
the power control circuit includes a boost converter and an inverter;
the boost converter boosts direct-current power from a power source of the vehicle and supplies the boosted direct-current power to the inverter;
the inverter converts the direct-current power from the boost converter into alternating-current power and supplies the alternating-current power to the at least one motor; and
the reactor constitutes a part of the boost converter.
7. The electromechanical integration unit according to claim 1 , wherein:
the second chamber is located above the first chamber;
the first electrical unit is located below the second electrical unit;
the at least one motor includes a first motor and a second motor partially located above the first motor;
the at least one first electrical component of the first electrical unit is located above the first motor; and
the at least one first electrical component of the first electrical unit is not located above the second motor.
8. The electromechanical integration unit according to claim 1 , wherein:
the first electrical unit further includes at least one third electrical component; and
the at least one third electrical component constitutes a charging circuit that converts direct-current power supplied from a power source of the vehicle into charging power supplied to an auxiliary battery of the vehicle.