摘要:
Electronic assemblies and methods of fabricating electronic assemblies are provided herein. The electronic assembly includes a heat sink, a metal layer, and an electrical insulator layer. The metal layer defines at least a portion of an electrical circuit. The electrical insulator layer is disposed between the heat sink and the metal layer and is directly bonded to the heat sink.
摘要:
An automotive power converter is provided. The automotive power converter includes a substrate, first and second electronic devices on the substrate, at least one conductive member coupled to the substrate and having a first device portion electrically coupled to the first electronic device and a second device portion electrically coupled to the second electronic device, and first and second terminals electrically coupled to the at least one conductive member. When a power supply is coupled to the first and second terminals, current flows from the first terminal to the first device portion substantially in a first direction and from the second terminal to the second device portion substantially in a second direction. The first direction has a first component and the second direction has a second component opposing the first component.
摘要:
A semiconductor subassembly is provided for use in a switching module of an inverter circuit for a high power, alternating current motor application. The semiconductor subassembly includes a wafer having first and second opposed metallized faces; a semiconductor switching device electrically coupled to the first metallized face of the wafer and having at least one electrode region; and an interconnect bonded to the semiconductor switching device. The interconnect includes a first metal layer bonded to the at least one electrode region of the semiconductor switching device, a ceramic layer bonded to the first metal layer, the ceramic layer defining a via for accessing the first metal layer, a second metal layer bonded to the ceramic layer, and a conducting substance disposed in the via of the ceramic layer to electrically couple the first metal layer to the second metal layer.
摘要:
Systems and apparatus are provided for power electronics substrates adapted for direct substrate cooling. A power electronics substrate comprises a first surface configured to have electrical circuitry disposed thereon, a second surface, and a plurality of physical features on the second surface. The physical features are configured to promote a turbulent boundary layer in a coolant impinged upon the second surface.
摘要:
A terminal assembly for a power converter is provided. The terminal assembly includes first and second conductive components and a current sensor. The first conductive component has first and second releasable attachment formations. The second conductive component has first and second portions with respective first and second widths. The first width is less than the second width. The first portion is releasably attached to the first conductive component with the second releasable attachment formation. The current sensor has an opening therethrough and is positioned between the first conductive component and the second portion of the second conductive component such that the first portion of the first conductive component extends through the opening. The current sensor is responsive to current flowing through the first portion of the second conductive component.
摘要:
Non-direct bond copper isolated lateral wide band gap semiconductor devices are provided. One semiconductor device includes a heat sink, a buffer layer directly overlying the heat sink, and an epitaxial layer formed of a group-III nitride overlying the buffer layer. Another semiconductor device includes a heat sink, a substrate directly overlying the heat sink, a buffer layer directly overlying the substrate, and an epitaxial layer formed of a group-III nitride overlying the buffer layer. Being formed of a group-III nitride enables the various epitaxial layers to be electrically isolated from their respective heat sinks.
摘要:
Damping mechanisms and motor assemblies are provided. In an embodiment, by way of example only, a damping mechanism includes an end cap, a bearing retainer plate, a bearing damper ring, a bearing assembly, and first and second lateral dampers. The bearing damper ring is disposed in an annular cavity inwardly from an inner diameter surface of the end cap and has a radially inwardly-extending flange. The bearing assembly is disposed in the annular cavity radially inwardly relative to the bearing damper ring. The first lateral damper is disposed between a radially inwardly-extending wall of the end cap and the bearing damper ring. The second lateral damper is disposed between the bearing damper ring and the bearing retainer plate.
摘要:
Methods are provided for forming/inserting a magnet in a rotor. One method includes coating a plurality of magnetizable particles with a non-metallic material, inserting the coated particles in a rotor, and magnetizing the coated particles. Another method includes inserting a plurality of magnetizable particles into a rotor, submersing the rotor in motor varnish or another viscous, non-metallic material to coat the particles, and magnetizing the particles. Yet another method includes inserting a plurality of magnetizable particles in a rotor, inserting a non-metallic material into the rotor, mixing the particles and non-metallic material to form a mixture, curing the mixture to coat each particle with non-metallic material, and magnetizing the particles. Still another method includes mixing a plurality of magnetizable particles with a non-metallic material, curing the non-metallic material to coat each particle with non-metallic material, inserting the coated particles in a rotor, and magnetizing the coated particles.
摘要:
Systems and/or methods are provided for an inverter power module with distributed support for direct substrate cooling. An inverter module comprises a power electronic substrate. A first support frame is adapted to house the power electronic substrate and has a first region adapted to allow direct cooling of the power electronic substrate. A gasket is interposed between the power electronic substrate and the first support frame. The gasket is configured to provide a seal between the first region and the power electronic substrate. A second support frame is adapted to house the power electronic substrate and joined to the first support frame to form the seal.
摘要:
An interface device for coupling an electrical device to a metal junction includes a conformable conductor plate having a first side and a second side. The interface device also includes a plurality of first channels that intersect with a plurality of second channels formed on at least one of the first side and the second side. The formation of the first channels and the second channels weaken the conductor plate. A plurality of protrusions is formed by the intersection of the first channels and the second channels. The protrusions are deformable by coupling the conformable plate between the electrical device and the metal junction. An elongated slot formed throughout at least a portion of the interface device.