Abstract: A vehicle power module assembly including first and second power modules is provided. The first power module may include a first lock feature extending from a lower portion of a first minor side at a first central axis. The second power module may include a second lock feature at an upper portion of a second minor side at a second central axis. The lock features may be sized for interlock with one another to secure the power modules to one another. The first lock feature may be a loop element defining a through-hole and the second lock feature may be a wedge. The through-hole may be sized for the wedge to extend therein and to interlock the first power module and the second power module to one another. The first lock feature may be a flexible hook element and the second lock feature may be a slot.

Abstract: A vehicle power module assembly including first and second power modules is provided. The first power module may include a first lock feature extending from a lower portion of a first minor side at a first central axis. The second power module may include a second lock feature at an upper portion of a second minor side at a second central axis. The lock features may be sized for interlock with one another to secure the power modules to one another. The first lock feature may be a loop element defining a through-hole and the second lock feature may be a wedge. The through-hole may be sized for the wedge to extend therein and to interlock the first power module and the second power module to one another. The first lock feature may be a flexible hook element and the second lock feature may be a slot.

Abstract: A rotor for an electric machine includes pairs of magnets with a bridge region therebetween. Lamination that comprise the rotor may define openings in the bridge region between the magnets of each of the pairs. A clip may be installed in the openings and a bonding material may fill the remainder of the bridge region.

Abstract: Described herein are bioreactor support structures configured to be used with containers having different designs, and methods for making and using such bioreactors. The support structures described herein may include two or more agitator motors and control systems or an adjustable-position agitator motor, a removable spacer and/or lid, multiple configurations for ports and probes, and multiple exhaust filter heating blankets. Also described herein are methods of manufacturing a multi-agitator motor or adjustable-position agitator motor bioreactor, as well as methods of modifying an existing support structure to be used with a container not originally designed to be used with the existing support structure, and methods for operating these bioreactors.

Abstract: A rotor for an electric machine includes pairs of magnets with a bridge region therebetween. Lamination that comprise the rotor may define openings in the bridge region between the magnets of each of the pairs. A clip may be installed in the openings and a bonding material may fill the remainder of the bridge region.

Abstract: Microelectromechanical system (MEMS) devices, methods of operating the MEMS device, and methods of manufacturing the MEMS device are disclosed. In some embodiments, the MEMS device includes a glass substrate; an electrode on the glass substrate; a hinge mechanically coupled to the electrode; a membrane mirror mechanically coupled to the hinge; a TFT on the glass substrate and electrically coupled to the electrode; and a control circuit comprising: a multiplexer configured to turn on or turn off the TFT; and a drive source configured to provide a drive signal for charging the electrode through the TFT. An amplitude of the drive signal corresponds to an amount of charge, and the amount of charge generates an electrostatic force for actuating the hinge and a portion of the membrane mirror mechanically coupled to the hinge.

Abstract: An electric vehicle power supply includes a housing, a power supply, and a plurality of fasteners. The housing defines an internal cavity and has inwardly protruding tabs that extend into the cavity. The power assembly has a front cover and an end cover. The power assembly also has an array of electrical switching units arranged horizontally between the front and end covers. The front and end covers have outwardly protruding tabs. Each of the plurality of fasteners extend vertically, engage one inwardly protruding tab, and engage one outwardly protruding tab to secure the power assembly to the housing.

Abstract: A method of forming a power-module assembly includes arranging power stages in a cavity of a container such that the power stages are spaced apart from walls of the container. The method further includes inserting a core between each of the power stages, and installing a manifold on top of the power stages. The method also includes putting resin into the cavity to form a housing of the power-module assembly, and removing the core to reveal coolant chambers between each of the power stages.

Abstract: An automotive motor includes a stator and a rotor disposed within the stator. The automotive motor also includes an endplate attached to the rotor that defines a coolant exit hole, an outer edge, and an array of staggered raised flow disruptors disposed radially between the coolant exit hole and outer edge. The array disrupts flow of coolant as the coolant travels from the coolant exit hole along a surface of the endplate toward the outer edge.

Abstract: Disclosed herein are MEMS devices and systems and methods of manufacturing or operating the MEMS devices and systems for transmitting and detecting radiation. The devices and methods described herein are applicable to terahertz radiation. In some embodiments, the MEMS devices and systems are used in imaging applications. In some embodiments, a microelectromechanical system comprises a glass substrate configured to pass radiation from a first surface of the glass substrate through a second surface of the glass substrate, the glass substrate comprising TFT circuitry; a lid comprising a surface; spacers separating the lid and glass substrate; a cavity defined by the spacers, surface of the lid, and second surface of the glass substrate; a pixel in the cavity, positioned on the second surface of the glass substrate, electrically coupled to the TFT circuitry, and comprising an absorber to detect the radiation; and a reflector to direct the radiation to the absorbers and positioned on the lid.

Abstract: Embodiments of the disclosure provide systems and methods for identifying hierarchically related files stored in a database. According to one embodiment, this can be accomplished using a pipeline of worker applications which each use a specific table stored in the database 35 and a sequence or series of queues. Generally speaking, each worker application can read a message identifying tasks to be performed from one queue in the sequence of queues, perform those tasks using the appropriate table from the database to identify a set of files, and write one or more messages to a subsequent queue in the sequence or series of queues to pass results and/or further tasks to be performed to a subsequent worker application in the pipeline of worker applications.

Abstract: An electric machine includes a plurality of planar laminations stacked to form an electrical steel rotor having openings defining magnet pockets and adjacent inner side pockets. The adjacent inner side pockets define a center bridge therebetween and have blasted surface portions such that compressive stress layers are induced along edges of the center bridge to strengthen the center bridge.

Abstract: Methods of sensor readout and calibration and circuits for performing the methods are disclosed. In some embodiments, the methods include driving an active sensor at a voltage. In some embodiments, the methods include use of a calibration sensor, and the circuits include the calibration sensor. In some embodiments, the methods include use of a calibration current source and circuits include the calibration current source. In some embodiments, a sensor circuit includes a Sigma-Delta ADC. In some embodiments, a column of sensors is readout using first and second readout circuits during a same row time.

Abstract: An ultrasound imaging probe including a handle configured for handheld use; a support structure disposed within the handle and comprising a thermally-conductive material, the support structure further comprising a coupling surface and an external surface, the coupling surface disposed at a distal portion of the support structure; a continuous material layer coupled to the support structure, such that the continuous material layer is disposed on the coupling surface and the external surface, the continuous material layer thereby providing a heat transmission path between the coupling surface and the external surface; and an ultrasound sensor coupled to the support structure at the coupling surface and directly in contact with the continuous material layer at the coupling surface, such that heat from the ultrasound sensor is transmitted away to the support structure via the heat transmission path of the continuous material layer.

Abstract: An electric machine configured to propel a vehicle includes a stator, a rotor, and an end plate. The stator has end windings that protrude axially therefrom. The rotor is disposed within the stator. The end plate is secured to an axial end of the rotor. The end plate defines a primary chamber, a secondary chamber that is radially outward of the primary chamber, and a first outlet channel that is configured to direct fluid onto the end windings. The primary chamber is in fluid communication with a fluid source and the secondary chamber. The secondary chamber is in fluid communication with the outlet channel.

Abstract: A method of manufacturing MEMS housings includes: providing glass spacers; providing a window plate; attaching the window plate to the glass spacers; aligning the glass spacers with a device glass plate having MEMS devices thereon; bonding the glass spacers to the device glass plate; and singulating the glass spacers, window plate, and device glass plate to produce the MEMS housings.

Abstract: A method of manufacturing an electromechanical systems structure includes manufacturing sub-micron structural features. In some embodiments, the structural features are less than the lithographic limit of a lithography process.

Abstract: An electric machine includes an electrical steel rotor having openings defining magnet pockets and outer side pockets, and having spaced apart axial stripes of increased compressive residual stress layers around a perimeter thereof. The outer side pockets and the perimeter form top bridges therebetween. Each of the axial stripes is aligned with one of the top bridges to strengthen outer edges of the top bridges.

Abstract: An electric machine configured to propel a vehicle includes a stator, a rotor, and an end plate. The stator has end windings that protrude axially therefrom. The rotor is disposed within the stator. The end plate is secured to an axial end of the rotor. The end plate defines a primary chamber, a secondary chamber that is radially outward of the primary chamber, and a first outlet channel that is configured to direct fluid onto the end windings. The primary chamber is in fluid communication with a fluid source and the secondary chamber. The secondary chamber is in fluid communication with the outlet channel.

Abstract: A power-module assembly includes a plurality of power modules each including a power stage having a substrate and a transistor-based switching arrangement supported on the substrate. The power modules are arranged in a stack that defines coolant chambers interleaved with the power stages and defines a pair of coolant-supply manifolds disposed on opposing sides of the stack and extending along a length of the stack. For each power module, the substrate defines a network of cooling channels connecting the supply manifolds to a corresponding one of the chambers. The network includes first channels each configured to receive coolant from the pair of coolant-supply manifolds, second channels substantially parallel to the first channels and each opening into the corresponding one of the chambers, and third channels crisscrossing the first and second channels to connect the first and second channels in fluid communication.