Abstract: A fan includes an air movement implement including a blade and a motor that drives the air movement implement. The motor includes a rotor that includes an internal diameter heat exchanger and a heat pipe having a first end and a second end, the first end in thermal contact with the internal diameter heat exchanger and the second end in thermal contact with the blade.

Abstract: A driver system, cooling apparatus for a driver system, and method are provided. The driver system includes a driver, a device configured to move a cooling fluid, and a shroud disposed at least partially over the driver. The shroud includes a plurality of inlet orifices and a plurality of outlet orifices in fluid communication with the device, and a plurality of fins extending at least partially between the shroud and the driver, at least partially in the driver, or both, the plurality of fins being spaced apart and defining flowpaths therebetween, wherein the flowpaths communicate with the inlet orifices and the outlet orifices.

Abstract: An electric machine includes a stator having an outer circumference. Spaced apart first walls are arranged about the outer circumference and provide generally parallel first channels. A second wall adjoins the first wall and is arranged about the outer circumference providing a second channel in fluid communication with the first channels, thus, providing a tortuous fluid flow path about the circumference. The first and second channels have an inner surface. A structure is provided within at least one of the first and second channels. The structure has an outer surface spaced radially outward from the inner surface and at least partially defines the tortuous flow path between the outer and inner surfaces. The stator includes an end turn. An end cap extends axially and radially outward from the stator and provides an enclosure about the end turn in fluid communication with the exit associated with the flow path.

Abstract: A cooling arrangement for a motor assembly includes a motor operably connected to a load. Also included is a motor controller disposed adjacent to, and fluidly coupled to, the motor, the motor controller disposed within a housing enclosing a cooling fluid for immersion of a plurality of motor controller components. Further included is a duct arrangement configured to route a cooling flow to a location proximate the housing of the motor controller for cooling therealong.

Abstract: A fully enclosed fan motor assembly includes a motor housing. A stator is located radially inward from the motor housing. A rotor is located radially inward from the stator, and the gap in between the rotor and stator defines a rotor stator gap. A shaft is located radially inward from the rotor. A fin portion extending radially outward from the shaft is used to dissipate heat from the rotor to air drawn through the rotor stator gap and over the fin portion.

Abstract: An AC-AC power converter supplies AC power to an AC motor having a plurality of motor windings and a case connected to a ground. The AC-AC power converter architecture includes an asymmetric phase shift autotransformer/rectifier unit (ATRU) that converts an AC input to a DC output, wherein the asymmetric phase shift ATRU generates a common-mode AC voltage across the asymmetric phase shift ATRU. The common mode voltage is diverted to ground through motor case parasitic capacitance via a common-mode voltage pull-down circuit connected between each phase of the ATRU AC input and the ground.

Abstract: A motor driven assembly comprises a motor shaft, a rotor, a passage, and a corrugated fin heat transfer structure. The motor shaft is mounted for rotation about a rotational axis. The rotor is located radially about the shaft. The passage extends through the rotor alongside the motor shaft. The corrugated fin heat transfer structure is disposed within the passage radially aligned with the rotor.

Abstract: A motor is provided including a stator core having a plurality of stator fins projecting outwardly from the stator core. A plurality of stator cooling channels is defined between adjacent stator fins. A flow mixer ring is axially aligned with the stator core and separated therefrom by an axial gap. The flow mixer ring includes a plurality of ring fins projecting inwardly from an interior surface and a plurality of ring cooling channels defined between the plurality of ring fins. The plurality of ring fins extends from a first surface over at least a portion of an axial length of the flow mixer ring.

Abstract: A circuit breaker module includes a breaker circuit connected to a first electrical lead and a second electrical lead, a housing surrounding the breaker circuit, wherein said first and second electrical leads extend through the housing, and wherein the housing is at least partially constructed of a thermally conductive polymer, and a heat dissipation feature contacting the housing, wherein the heat dissipation feature is operable to dissipate heat from the breaker circuit.

Abstract: An electrical inductor assembly includes an inductor core having a relatively circular geometry. Also included is a wire guide surrounding and retaining the inductor core, the wire guide having a plurality of slots for retaining and guiding a plurality of wires. Further included is an outer housing surrounding and retaining the wire guide and a substance disposed within at least one of the plurality of slots of the wire guide.

Abstract: A motor assembly cooling arrangement includes a first plurality of laminations having a first radially inner surface defining a centrally disposed aperture and a first radially outer surface. Also included is a second plurality of laminations having a second radially inner surface substantially corresponding to the first radially inner surface and a second radially outer surface having a plurality of circumferentially spaced fins extending radially outwardly from the second radially outer surface. Further included is at least one axial cooling channel extending proximate the first radially outer surface and the second radially outer surface, the at least one axial cooling channel defined by the plurality of circumferentially spaced fins.

Abstract: A power distribution contactor mount, and a power distribution system incorporating the same, include a plurality of electrically and thermally conductive contactor posts operable to connect a contactor lead to a bus bar, a mounting panel face, wherein each of the contactor posts is received in the mounting panel face and extends through the mounting panel face, and a first heat dissipation component mounted on the mounting panel face and thermally connected to each of the contactor posts. The thermal connection is via a thermally conductive and electrically insulative polymer insert, and each of the posts protrudes through the first heat dissipation component.

Abstract: An electrical contactor assembly is provided including an electrical contactor, an electrical bus bar, and a single panel formed of one more layers of an electrically insulating, thermally conductive material. A plurality of posts protrude through and directly contact the panel. Each of the posts is constructed from an electrically and thermally conductive material. Each post has a first end configured to electrically and thermally connect to the electrical contactor and a second end configured to electrically and thermally connect to the bus bar.

Abstract: An electronics cooling system comprises a tubular fan duct and an electronics housing. The fan duct includes has a fan duct casing containing a fan with rotor blades and stator vanes. The electronics housing is mounted directly on the tubular fan duct, such that the electronics housing and the fan duct casing together enclose an interior space. A cooling airflow path extends from a high-pressure region of the tubular fan duct, through an inlet hole into the interior space, and out a bleed hole into a surrounding environment. The electronics cooling system further comprises three electronics mounts within the interior space. A first electronics mount is located immediately adjacent to the inlet hole, on the fan duct. A second electronics mount is located immediately radially outward of the stator vanes, on the fan duct. A third electronics mount is located immediately adjacent to the bleed hole, on the housing.

Abstract: A rectifier assembly includes a diode pack. A bus bar includes a first layer electrically connected to the diode pack. The first layer has a first yield strength and a first coefficient of thermal expansion. A second layer of copper is joined to the first layer and includes a second yield strength less than the first yield strength. In one example, the second layer has a second coefficient of thermal expansion within 5% of the first coefficient of thermal expansion.

Abstract: An electronic component assembly includes a housing that provides a cavity filled with a cooling fluid that has a liquid phase and a vapor phase. An electronic element is arranged in the cavity and is configured to generate heat. A wicking material is arranged in the cavity between the housing and the electronic device. The cavity provides a gap adjacent to the wicking material. The wicking material is configured to absorb the liquid phase, and the vapor phase is provided in the gap.

Abstract: A fan motor controller for a turbine engine comprises a component mounting base and a plurality of fan controller components mounted to the component mounting base. The component mounting base comprises a plurality of sections that are configured to extend circumferentially around a fan inner housing.

Abstract: A stator core of a motor or generator includes a stacked stator laminations that form a plurality of outwardly extending fins and a plurality of cooling channels between the fins. Each stator lamination includes a gap larger than a cooling channel. Each stator lamination is rotated relative to a previous stator lamination in the stack. The gaps of adjacent stator laminations overlap such to connect a cooling channel to adjacent cooling channels.

Abstract: An integrated planar electromechanical contactor assembly includes a substrate, a through-hole formed through the substrate, a plurality of solenoid traces embedded within the substrate about the through-hole in a plurality of distinct planes, a solenoid core arranged in the through hole in electromagnetic communication with the plurality of solenoid traces, and a mobile contact arm. The plurality of distinct planes are substantially parallel to one another and each solenoid trace of the plurality of solenoid traces is in electrical communication with an adjacent solenoid trace through an electrical via. Furthermore, the mobile contact arm is configured to selectively connect an external contact lead arranged on the substrate to at least one electrical trace embedded within the substrate responsive to motion of the solenoid core.

Abstract: An integrated planar electromechanical contactor assembly includes a substrate, a through-hole formed through the substrate, a plurality of solenoid traces embedded within the substrate about the through-hole in a plurality of distinct planes, a solenoid core arranged in the through hole in electromagnetic communication with the plurality of solenoid traces, and a mobile contact arm. The plurality of distinct planes are substantially parallel to one another and each solenoid trace of the plurality of solenoid traces is in electrical communication with an adjacent solenoid trace through an electrical via. Furthermore, the mobile contact arm is configured to selectively connect an external contact lead arranged on the substrate to at least one electrical trace embedded within the substrate responsive to motion of the solenoid core.