Abstract: A cold plate for a power circuit is disclosed. The power circuit includes a plurality of transistors and each of the plurality of transistors includes a plurality of dies. The cold plate includes a liquid cooling system that includes a plurality of cooling channels and each of the plurality of cooling channels is aligned with at least one die. The liquid cooling system includes a heat sink associated with each of the plurality of cooling channels. The cold plate further includes a plurality of heat pipes, wherein each of the plurality of heat pipes is aligned with at least one of the plurality of cooling channels and at least one die. Each heat pipe includes a wick lining an interior of the heat pipe, a vapor flow area, and a fluid.

Abstract: A mounting arrangement for a capacitor package is disclosed. The capacitor package is suitable for use in electric drive traction applications that are subjected to high vibration. Such a capacitor package is relatively large and requires a unique mounting arrangement in order to account for a large mass and high vibration environment. The mounting arrangement provides a clamp load plane that is near the center of mass of the capacitor package.

Abstract: A cold plate for a power circuit is disclosed. The power circuit includes a plurality of transistors and each of the plurality of transistors includes a plurality of dies. The cold plate includes a liquid cooling system that includes a plurality of cooling channels and each of the plurality of cooling channels is aligned with at least one die. The liquid cooling system includes a heat sink associated with each of the plurality of cooling channels. The cold plate further includes a plurality of heat pipes, wherein each of the plurality of heat pipes is aligned with at least one of the plurality of cooling channels and at least one die. Each heat pipe includes a wick lining an interior of the heat pipe, a vapor flow area, and a fluid.

Abstract: A casting for a housing for a flexible, configurable power converter is disclosed. The housing includes a power compartment that is configured to accept a heat sink in either of two orientations. The configurable nature of the power converter allows the same power convertible package to be used in a number of applications without having to incur the cost of developing a new power converter package.

Abstract: A configurable power converter package is disclosed. The configurable design allows for the power converter to support the drivetrain needs of a product line of machines without having to design a new power converter for each application. Major components of the power converter package such as the housing, heat sink, power modules, and bus bars are designed to be combined into a number of different power configurations. The power configurations fulfill the needs of a product line of electric drivetrains without the need to design a new power converter package for each application.

Abstract: A casting for a housing for a flexible, configurable power converter is disclosed. The housing includes a power compartment that is configured to accept a heat sink in either of two orientations. The configurable nature of the power converter allows the same power convertible package to be used in a number of applications without having to incur the cost of developing a new power converter package.

Abstract: A mounting arrangement for a capacitor package is disclosed. The capacitor package is suitable for use in electric drive traction applications that are subjected to high vibration. Such a capacitor package is relatively large and requires a unique mounting arrangement in order to account for a large mass and high vibration environment. The mounting arrangement provides a clamp load plane that is near the center of mass of the capacitor package.

Abstract: Assembling a power converter for a multiple phase electric drive propulsion system in a machine includes arranging a plurality of rectangular capacitor units of a capacitor subassembly for conditioning electrical power in the power converter in a first packaging arrangement. In the first packaging arrangement, major capacitor axes of each one of the capacitor units are co-linear with one another and minor capacitor axes of each one of the capacitor units are oriented parallel but not co-linear with one another. Assembling the power converter further includes arranging a plurality of IGBT modules of a transistor subassembly for power switching in the power converter in a second packaging arrangement. In the second packaging arrangement major module axes of each one of the IGBT modules are oriented parallel but not co-linear with one another and minor module axes of each one of the IGBT modules are co-linear with one another.

Abstract: Assembling a power converter for a multiple phase electric drive propulsion system in a machine includes arranging a plurality of rectangular capacitor units of a capacitor subassembly for conditioning electrical power in the power converter in a first packaging arrangement. In the first packaging arrangement, major capacitor axes of each one of the capacitor units are co-linear with one another and minor capacitor axes of each one of the capacitor units are oriented parallel but not co-linear with one another. Assembling the power converter further includes arranging a plurality of IGBT modules of a transistor subassembly for power switching in the power converter in a second packaging arrangement. In the second packaging arrangement major module axes of each one of the IGBT modules are oriented parallel but not co-linear with one another and minor module axes of each one of the IGBT modules are co-linear with one another.