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: A vehicle system is disclosed. The vehicle system includes an automatic transmission fluid cooling conduit. The automatic transmission fluid cooling conduit includes an inlet portion, an outlet portion, and an elbow portion connecting the inlet and outlet portions and having an inner surface defining a cavity in fluid communication with the inlet and outlet portions. The automatic transmission fluid cooling conduit also includes an oleophobic or hydrophobic coating on the inner surface. The oleophobic or hydrophobic coating is configured to reduce eddy currents in the cavity.

Abstract: A power inductor assembly including a power inductor, a vehicle component, and a pair of distribution conduits is provided. The power inductor has a housing supporting a pair of coils. The vehicle component is located above the pair of coils. Each of the pair of distribution conduits is oriented relative to one of the pair of coils below the vehicle component and has one or more openings adjacent the coils to distribute coolant thereto. Each of the one or more openings may define one of a circular shape or a slot shape. Each of the one or more openings may be sized such that exiting coolant substantially uniformly covers the adjacent coil.

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: An electric machine is disclosed. The electric machine includes a stator core defining a cavity and having end-windings protruding from the cavity, and a rotor configured to rotate within the cavity and having end plates defining a plurality of holes for providing coolant. The electric machine also includes one or more layers of an oleophobic or hydrophobic coating disposed on portions of the end plate corresponding to the holes to increase coolant flow to the end-windings.

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: Electronic devices are disclosed including hydrophobic or oleophobic coatings that control coolant flow therein or thereon. In at least one embodiment, a power inverter cold plate is provided including coolant inlet, a coolant outlet, a coolant flow spreading region, a coolant flow collection region, and a coolant heat-transfer region disposed therebetween; and one or more layers of a hydrophobic or oleophobic coating configured to control a flow of coolant in the cold plate. A method may include applying one or more layers of a hydrophobic or oleophobic coating to a power inverter cold plate to control a flow of coolant in the cold plate, the one or more layers being applied to one or more of a coolant flow spreading region, a coolant flow collection region, or a coolant heat-transfer region disposed therebetween. The layers may define coolant flow paths, eliminate recirculation zones, and/or prevent coolant leak paths.

Abstract: An electric machine is disclosed. The electric machine includes a stator core within a transaxle housing and having a channel-less outer surface portion. The electric machine also includes one or more layers of an oleophobic or hydrophobic patterned coating defining boundaries wrapping around a perimeter of the stator core, and one or more layers of an oleophilic or hydrophilic coating on the portion within the boundaries configured to direct coolant flow over the oleophilic or hydrophilic coating within the boundaries.

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: 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: 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: A vehicle power system may include a power module assembly having a plurality of alternating heatsinks and phase legs arranged in a deck. Each of the phase legs includes a semiconductor switch in contact with a dielectric layer. The dielectric layer is sandwiched between the switch and one of the heatsinks such that heat generated by the switch is transferred to the heatsink via the dielectric. At least one of the heatsinks may define a coolant channel. The coolant channel may be U-shaped. The coolant channel may have inlet and outlet regions. The inlet region may be opposite the outlet region. The coolant channel may have a divider to segregate ingress and egress coolant paths. The coolant channel may have obstructions to form a tortuous path. The obstructions may be wavy fins.

Abstract: A vehicle powertrain includes a stator defining a circular opening having an inner diameter, and a rotor to rotate within the circular opening such that a gap is formed between a rotor surface and the stator at the inner diameter. The powertrain further includes a repellant, coated on the stator and the rotor surface, to control fluid flow in the gap.

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: A vehicle electric machine may include a stator having end windings extending axially from the stator. A rotor may be disposed within the stator and including an endcap having an outer face defining outlets and a furrowed outer periphery with an edge configured to distribute coolant released from the outlets onto the outer face to different axial locations of the end windings during rotation. The furrowed outer periphery may taper toward an in inner flat portion. The outlets may be contained within the inner flat portion. The furrowed outer periphery may be symmetric about any axis perpendicular to and passing through an axis of rotation of the rotor. The outer face may further define channels extending from the outlets to the edge. The channels may be recessed in the outer face. The furrowed outer periphery may define concentric circumferential ridges.

Abstract: According to one embodiment, a power-module assembly includes a power-module stack having coolant chambers interleaved with power modules and supply and return manifold channels extending axially along the stack. An endcap has a major side defining recessed inlet and outlet manifold cavities aligned with the channels and inlet and outlet ports disposed on one or more minor sides that are perpendicular to the major side.

Abstract: A vehicle power supply includes a housing, a backing plate, a power assembly, and a clamp. The housing has a bottom wall and a side wall. The backing plate extends from the bottom wall. The power assembly has an array of electrical switching units that extend from the side wall to the backing plate. The clamp extends from the backing plate and is configured to engage a backside of the array such that a frontside of the array is forced into engagement with the side wall.

Abstract: Electronic devices are disclosed including hydrophobic or oleophobic coatings that control coolant flow therein or thereon. In at least one embodiment, an electric machine is provided including a stator core defining a cavity, windings disposed within the cavity and including end windings protruding from the cavity, and one or more layers of an oleophobic coating overlying the end windings and configured to control a flow of coolant over the end windings. A method may include applying one or more layers of a oleophobic coating to end windings of an electric machine stator such that the one or more layers control a flow of coolant over the end windings. The one or more layers may define coolant flow paths, which may direct coolant to areas of the electric machine requiring additional cooling, such as hot spots or neutral points.

Abstract: A power inductor assembly including a power inductor, a vehicle component, and a pair of distribution conduits is provided. The power inductor has a housing supporting a pair of coils. The vehicle component is located above the pair of coils. Each of the pair of distribution conduits is oriented relative to one of the pair of coils below the vehicle component and has one or more openings adjacent the coils to distribute coolant thereto. Each of the one or more openings may define one of a circular shape or a slot shape. Each of the one or more openings may be sized such that exiting coolant substantially uniformly covers the adjacent coil.

Abstract: Methods and devices are disclosed for sensing radiation emitted by an object. For example, one device includes a substrate and a movable layer coupled to the substrate. The movable layer is configured to receive radiation from the object and move relative to the substrate to a position in response to a change in temperature. The device also includes a sensor that is configured to produce a signal responsive to the position of the movable layer. The signal is indicative of the radiation emitted by the object.