摘要:
A spool assembly retains a winding of an electrical wire thereabout. The electrical wire is covered by a liquid insulating material. The spool assembly includes a cylinder to finding a longitudinal axis and an outer diameter. The cylinder extends between a high voltage end and a low voltage end along the longitudinal axis. The spool assembly also includes a high retainer disposed about the cylinder at the high voltage end. The high retainer has a high retainer diameter greater than the outer diameter of the cylinder. The spool assembly also includes a low retainer disposed about the cylinder at the low voltage end. The low retainer has a low retainer diameter greater than the outer diameter of the cylinder. This spool assembly also includes a channel extending along the cylinder inwardly from the outer diameter to receive the liquid insulating material when the liquid insulating material is forced through the winding to prevent air voids from forming at the inside diameter of the winding.
摘要:
A spool assembly retains a winding of an electrical wire thereabout. The electrical wire is covered by a liquid insulating material. The spool assembly includes a cylinder to finding a longitudinal axis and an outer diameter. The cylinder extends between a high voltage end and a low voltage end along the longitudinal axis. The spool assembly also includes a high retainer disposed about the cylinder at the high voltage end. The high retainer has a high retainer diameter greater than the outer diameter of the cylinder. The spool assembly also includes a low retainer disposed about the cylinder at the low voltage end. The low retainer has a low retainer diameter greater than the outer diameter of the cylinder. This spool assembly also includes a channel extending along the cylinder inwardly from the outer diameter to receive the liquid insulating material when the liquid insulating material is forced through the winding to prevent air voids from forming at the inside diameter of the winding.
摘要:
An electric machine housing includes a housing body having an outer surface provided with a plurality of materially integrally formed ribs defining a plurality of coolant channels. Each of the plurality of materially integrally formed ribs has an outer surface portion. A sleeve is provided on the housing body extending about the outer surface. The sleeve has an inner surface section that is matingly engaged with the outer surface portion of each of the materially integrally formed ribs.
摘要:
A stator includes a stator core having a plurality of slot segments, a plurality of stator winding conductors arranged in select ones of the plurality of slot segments, a jumper conductor interconnecting select ones of the plurality of stator winding conductors to form one or more stator windings, a common conductor connected to at least one of the stator winding conductors, a phase conductor connected to corresponding ones of the one or more stator windings, and a composite sleeve provided on at least one of the jumper conductor, the common conductor, and the phase conductor. The composite sleeve includes a first sleeve, and a second sleeve positioned about the first sleeve. One of the first and second sleeves is formed from a compressed amide synthetic fiber. The first and second sleeves cooperate to provide protection for the conductor from external elements.
摘要:
An electric machine includes a stator core having a plurality of circumferentially-oriented slot positions, each slot position having a plurality of radially-oriented slots, each slot extending longitudinally through the core. The stator core has a plurality of conductor segments each extending through at least one of the slots. When a slot position is populated with at least two conductor segments, at least two exterior conductor portions exiting the slot position are angled radially apart from one another by more than one degree. A method of cooling an electric machine includes providing coolant access to embedded conductor end turn portions of a stator having circumferentially spaced slot positions by radially spreading exterior conductor portions exiting populated ones of the slot positions.
摘要:
A composite sleeve for a conductor including a conductor having an outer surface, a first sleeve positioned about the outer surface of the conductor, and a second sleeve positioned about the first sleeve. One of the first and second sleeves is formed from a compressed amide synthetic fiber. The first and second sleeves cooperate to provide protection for the conductor from external elements.
摘要:
An ignition apparatus includes a core, primary and secondary windings and a loop-shaped magnetic return path structure. The structure includes layers of wound strip steel or wound ferritic wire stacked in an outward fashion. The core is placed in an interior of the loop forming at least one air gap between a core end surfaces and the structure. A combined core and magnetic return path structure includes a continuous loop formed by winding ferritic wire either on a spool or on a mandrel and is then bonded. The bonded winding is cut to form two C-shaped portions. Each C-shaped portion has a central yoke that extends into a pair of parallel legs. The C-shaped portions are re-assembled over primary and second windings so that the legs form a pair of parallel branches. One branch acts as the core and the other branch acts as the magnetic return path.
摘要:
An axially potted progressive wound remote mount ignition coil (axially potted ignition coil) includes a coil case, at least one coil assembly, and a quantity of potting material. Each coil assembly is progressively wound. The coil case includes a coil cavity for each coil assembly, a primary connector, and two secondary connectors for each coil cavity. Each primary coil is connected to the primary connector and an end of each secondary coil is connected to a single secondary connector. A quantity of potting material is poured over the open end of each coil cavity. A second embodiment of the axial potted ignition coil includes a modular coil case, at least one coil assembly, and a quantity of potting material. The modular coil case includes at least one coil tube, a rear end cap and a forward end cap. Each coil assembly is inserted into a respective coil tube.
摘要:
An ignition coil cassette having bushings retained by an irregularity of the bushings being encased by epoxy. As a result, the process by which the bushings are installed into the ignition coil cassette avoids the cost associated with the overmolding installation process, and further avoids the potential for damage associated with the ultrasonic insertion process. The irregularity is located generally adjacent one end of each of the bushings and may be, for example, in the form of an undercut or a protrusion.
摘要:
An electric machine includes a housing, a stator fixedly mounted relative to the housing, and a rotor assembly rotatably mounted relative to the stator. The rotor assembly includes a plurality of rotor laminations forming a rotor body, one or more permanent magnets provided in the rotor body, and a sleeve extending around the one or more permanent magnets. The sleeve provides a thermal interface between the one or more permanent magnets and the rotor body.