MECHANICALLY AND ELECTRICALLY INTEGRATED DRIVING APPARATUS AND MANUFACTURING METHOD THEREFOR
First Claim
Patent Images
1. A mechanically and electrically integrated driving apparatus comprising:
- a cylindrical frame unit;
a motor unit that comprises;
a stator core;
a plurality of windings that are mounted to the stator core; and
a rotor unit that is inserted into the stator core,the motor unit being housed in the frame unit; and
an inverter unit that comprises;
power modules that supply electric power to the motor unit; and
a power module driving circuit board that drives the power modules,the inverter unit being housed in the frame unit,wherein;
a common coolant flow channel for cooling the motor unit and the inverter unit is disposed inside a wall portion of the frame unit;
the power modules are placed in close contact with an inner wall surface of the frame unit;
a bracket that is separate from the frame unit is fitted into the frame unit; and
a space inside the frame unit is divided by the bracket into;
a space in which the motor unit is housed; and
a space in which the inverter unit is house;
a connector for connecting the power modules and the windings is disposed on an end portion of the bracket that is near the inverter unit;
the connector includes a plurality of connecting conductors to which the leader lines from the windings are connected;
connecting terminals that rise up at positions at which the power modules are disposed on each of the connecting conductors; and
the connecting conductors include plurality of circular arc-shaped conductors that are disposed concentrically.
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Accused Products
Abstract
In a mechanically and electrically integrated driving apparatus, a common coolant flow channel for cooling a motor unit and an inverter unit is disposed inside a wall portion of a frame unit. Power modules are placed in close contact with an inner wall surface of the frame unit. A bracket that is separate from the frame unit is fitted into the frame unit. A space inside the frame unit is divided by the bracket into: a space in which the motor unit is housed; and a space in which the inverter unit is housed.
26 Citations
18 Claims
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1. A mechanically and electrically integrated driving apparatus comprising:
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a cylindrical frame unit; a motor unit that comprises; a stator core; a plurality of windings that are mounted to the stator core; and a rotor unit that is inserted into the stator core, the motor unit being housed in the frame unit; and an inverter unit that comprises; power modules that supply electric power to the motor unit; and a power module driving circuit board that drives the power modules, the inverter unit being housed in the frame unit, wherein; a common coolant flow channel for cooling the motor unit and the inverter unit is disposed inside a wall portion of the frame unit; the power modules are placed in close contact with an inner wall surface of the frame unit; a bracket that is separate from the frame unit is fitted into the frame unit; and a space inside the frame unit is divided by the bracket into; a space in which the motor unit is housed; and a space in which the inverter unit is house; a connector for connecting the power modules and the windings is disposed on an end portion of the bracket that is near the inverter unit; the connector includes a plurality of connecting conductors to which the leader lines from the windings are connected; connecting terminals that rise up at positions at which the power modules are disposed on each of the connecting conductors; and the connecting conductors include plurality of circular arc-shaped conductors that are disposed concentrically. - View Dependent Claims (2, 5, 6, 7, 9, 10, 11, 12, 13, 14, 17)
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3-4. -4. (canceled)
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8. A mechanically and electrically integrated driving apparatus comprising:
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a cylindrical frame unit; a motor unit that comprises; a stator core; a plurality of windings that are mounted to the stator core; and a rotor unit that is inserted into the stator core, the motor unit being housed in the frame unit; and an inverter unit that comprises; power modules that supply electric power to the motor unit; and a power module driving circuit board that drives the power modules, the inverter unit being housed in the frame unit, wherein; a common coolant flow channel for cooling the motor unit and the inverter unit is disposed inside a wall portion of the frame unit; the power modules are placed in close contact with an inner wall surface of the frame unit; a bracket that is separate from the frame unit is fitted into the frame unit; a space inside the frame unit is divided by the bracket into; a space in which the motor unit is housed; and a space in which the inverter unit is housed; a connector for connecting the power modules and the windings is disposed on an end portion of the bracket that is near the inverter unit; the connector includes a plurality of connecting conductors to which the leader lines from the windings are connected; connecting terminals that rise up at positions at which the power modules are disposed are disposed on each of the connecting conductors; a bearing that rotatably holds a shaft of the rotor unit is held on the bracket; the bracket comprises; a discoid outer bracket; and an inner bracket that is fitted inside the outer bracket; the bearing is held on the inner bracket; and the connector is disposed on the outer bracket. - View Dependent Claims (16, 18)
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15. A manufacturing method for a mechanically and electrically integrated driving apparatus, the manufacturing method comprising steps of:
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placing a bracket over an end portion of a stator core to which a plurality of windings have been mounted; integrating the stator core, the windings, and the bracket by molding; fixing a connecting base that is made of an electrically insulating material on which a plurality of grooves have been formed to an end portion of the bracket on an opposite side from the stator core; inserting connecting conductors into the grooves of the connecting base; fixing an assemblage that includes the stator core, the windings, and the bracket by press-fitting or shrinkage-fitting inside a cylindrical frame unit in which a coolant flow channel is disposed inside a wall portion; inserting a rotor unit inside the stator core and rotatably holding a shaft of the rotor unit by a bearing; and fixing power modules to the frame unit such that radiating surfaces thereof are placed in close contact with an inner wall surface of the frame unit.
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Specification