Electronics component packaging for power converter
First Claim
1. A method of assembling a power converter for a multiple-phase electric drive propulsion system in a machine comprising:
- arranging a plurality of rectangular capacitor units of a capacitor subassembly for conditioning electrical power in the power converter in a first packaging arrangement, including orienting major capacitor axes of each one of the capacitor units co-linear with one another and orienting minor capacitor axes of each one of the capacitor units parallel but not co-linear with one another;
arranging a plurality of IGBT modules of a transistor subassembly for power switching in the power converter in a second packaging arrangement, including orienting major module axes of each one of the IGBT modules parallel but not co-linear with one another and orienting minor module axes of each one of the IGBT modules co-linear with one another;
wherein arranging the plurality of IGBT modules further includes positioning a rectangular heat dissipation surface of each one of the IGBT modules in a common heat transference plane; and
supporting the capacitor subassembly in the first packaging arrangement and supporting the transistor subassembly in the second packaging arrangement.
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Accused Products
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. The capacitor subassembly and the transistor subassembly are supported in the first packaging arrangement and in the second packaging arrangement for service in a power converter housing.
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Citations
19 Claims
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1. A method of assembling a power converter for a multiple-phase electric drive propulsion system in a machine comprising:
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arranging a plurality of rectangular capacitor units of a capacitor subassembly for conditioning electrical power in the power converter in a first packaging arrangement, including orienting major capacitor axes of each one of the capacitor units co-linear with one another and orienting minor capacitor axes of each one of the capacitor units parallel but not co-linear with one another; arranging a plurality of IGBT modules of a transistor subassembly for power switching in the power converter in a second packaging arrangement, including orienting major module axes of each one of the IGBT modules parallel but not co-linear with one another and orienting minor module axes of each one of the IGBT modules co-linear with one another; wherein arranging the plurality of IGBT modules further includes positioning a rectangular heat dissipation surface of each one of the IGBT modules in a common heat transference plane; and supporting the capacitor subassembly in the first packaging arrangement and supporting the transistor subassembly in the second packaging arrangement. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of making a power converter for a multiple phase electric drive propulsion system in a machine comprising:
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establishing a first packaging arrangement for a capacitor subassembly adapted for conditioning electrical power in the power converter, the first packaging arrangement including a first heat dissipation/packing density configuration where major capacitor axes of each of a plurality of rectangular capacitor units of the capacitor subassembly are oriented co-linear with one another and where minor capacitor axes of each of the rectangular capacitor units are oriented parallel but not co-linear with one another; establishing a second packaging arrangement for a transistor subassembly adapted for power switching in the power converter, the second packaging arrangement including a second heat dissipation/packing density configuration where major module axes of each of a plurality of IGBT modules of the transistor subassembly are oriented parallel but not co-linear with one another, where minor module axes of each of the IGBT modules are oriented co-linear with one another and where rectangular heat dissipation surfaces of each of the IGBT modules are positioned in a common heat transference plane; and coupling the capacitor subassembly in the first packaging arrangement with the transistor subassembly in the second packaging arrangement, for service in a power converter housing. - View Dependent Claims (8, 9)
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10. A power converter for a multiple-phase electric drive propulsion system in a machine comprising:
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a capacitor subassembly for conditioning electrical power in the power converter and including a plurality of capacitor units each having a rectangular configuration and defining a major capacitor axis and a minor capacitor axis which is oriented normal to and bisects the major capacitor axis, wherein the capacitor subassembly includes a first packaging arrangement where each of the major capacitor axes are co-linear with one another and each of the minor capacitor axes are parallel but not co-linear with one another; a transistor subassembly for power switching in the power converter and including a plurality of IGBT modules each defining a major module axis and a minor module axis which is oriented normal to and bisects the major module axis, wherein the plurality of IGBT modules each further include an upper module side and a lower module side opposite the upper module side which includes a heat dissipation surface having a rectangular configuration; wherein the transistor subassembly includes a second packaging arrangement where each of the minor module axes are co-linear with one another and each of the major module axes are parallel but not co-linear with one another and each of the heat dissipation surfaces are positioned in a common heat transference plane; and a support mechanism adapted to support the capacitor subassembly in the first packaging arrangement and to support the transistor subassembly in the second packaging arrangement. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An electronics package for a power converter of an electric drive propulsion system in a machine comprising:
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a capacitor subassembly for conditioning electrical power in the power converter and including a plurality of capacitor units each having a rectangular configuration and defining a major capacitor axis and a minor capacitor axis which is oriented normal to and bisects the major capacitor axis, wherein the capacitor subassembly includes a first packaging arrangement where each of the major capacitor axes are co-linear with one another and each of the minor capacitor axes are parallel but not co-linear with one another; a transistor subassembly for power switching in the power converter and including a plurality of IGBT modules each defining a major module axis and a minor module axis which is oriented normal to and bisects the major module axis, wherein the plurality of IGBT modules each further include an upper module side and a lower module side opposite the upper module side; wherein the transistor subassembly includes a second packaging arrangement where each of the minor module axes are co-linear with one another and each of the major module axes are parallel but not co-linear with one another; and a heat dissipation mechanism for cooling the electronics package including a plurality of rectangular heat transference panels connected one with each of the IGBT modules on the corresponding lower module side thereof and each including a planar heat dissipation surface. - View Dependent Claims (17, 18, 19)
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Specification