A stator of a motor comprises a terminal. The terminal includes: a leg portion, a hook portion including an open end and disposed on a core outer circumference part at a position corresponding to one of core tooth parts in a circumferential direction, and a coupling portion extending from the leg portion in the circumferential direction along the core outer circumference part and connected to the hook portion. An end portion of a coil is connected to the hook portion. The coupling portion of the terminal is bent to locate the hook portion radially outside the core tooth parts.

An exemplary embodiment of the present invention provides a motor including: a rotor configured to rotate about a central axis; a stator disposed radially opposite the rotor with a clearance defined between the stator and the rotor; a housing accommodating the rotor and the stator; a bearing supporting the rotor in a rotatable manner; a bearing holder holding the bearing, the bearing holder being fixed to the housing; a rotation sensor configured to detect rotation of the rotor; and a sensor holder disposed in the bearing holder to hold the rotation sensor. According to an exemplary embodiment of the present invention, the motor includes a position adjustment mechanism configured to adjust a circumferential position of the rotation sensor by integrally rotating the bearing holder and the sensor holder relative to the housing in a circumferential direction.

A system for an axial field rotary energy device can include modules that each are an axial field rotary energy device. The modules can be connected together for a desired power input or output. Each module can include a housing having an axis. The housing can be mechanically coupled to at least one other module. In addition, the housing can be electrically coupled to one other module. Rotors can be rotatably mounted to the housing. Each rotor can include magnets. The housing also can have stators. Each stator can include a printed circuit board (PCB) having PCB layers comprising coils.

An axial field rotary energy device can include a rotor having an axis of rotation and a magnet; a stator coaxial with the rotor, the stator can have a printed circuit board (PCB) having a plurality of PCB layers that are spaced apart in an axial direction, each PCB layer can include a coil having only two terminals for electrical connections, each coil is continuous and uninterrupted between its only two terminals, each coil consists of a single electrical phase, and one of the two terminals of each coil is electrically coupled to another coil with a via to define a coil pair; and each coil pair is electrically coupled to another coil pair with another via.

To prevent breakage of the segment of an enameled wire that extends between a pin and a winding groove on an insulating stator base, a tension servo of an automatic wire-winding machine in controlled to first wind the enameled wire tightly around the pin of the insulating stator base and then to loosely wind the enameled wire around the pin to form at least one loose winding with a gap between the enameled wire and the pin. The enameled wire is then drawn into the winding groove of the stator base and tightly wound around the stator core within the winding groove. Optionally at least one first loose winding with a gap between the enameled wire and a bottom of the winding groove may initially be formed before tightly winding additional windings within the winding groove.

An assembly and a method for connecting ends of generator stator coils with a manifold are presented. The assembly includes an adapter having a sleeve connection conduit connected to a sleeve of the manifold and two hose connection conduits. Two hoses are connected between the two hose connection conduits and end of top stator coil and end of bottom stator coil respectively. The adapter provides two separate coolant flow paths from one sleeve of the manifold to the top stator coil and the bottom stator coil through two hoses. The assembly provides a simple modification to resolve connection issues between generator stator coils and manifold during stator coil rewinding as well as a possibility to monitor coolant temperatures of top and bottom stator coils independently.

A stator bar mold insert includes an upper portion and a lower portion. A central cavity is disposed between, and defined by, the upper portion and the lower portion. The central cavity is configured for use with a stator bar. A low friction material lines the central cavity, and the low friction material substantially surrounds the stator bar located inside the stator bar mold insert.

An assembly and a method for supporting generator stator end winding coils are presented. The assembly includes an outer support circumferentially disposed on outer side of bottom end winding coils and inner braces disposed on inner side of top end winding coils and circumferentially spaced apart from each other. At least one inner brace is disposed along an axial direction of the top end winding coils. Studs are radially oriented and threaded into the inner braces from the outer support. The studs are tensioned and retightenable to a required clamping force for supporting the end winding coils. Filler layers are disposed between the top end wind coils and bottom end wind coils for supporting the clamping force.

The invention relates to a method for producing a stator module (10) for an electric motor. The method comprises the following steps: provision of a core (100) comprising a centrally-arranged bearing seat (130), an annular yoke (110), and a plurality of teeth (120) which extend radially outward from the annular yoke (110); arrangement of a bearing (200) in the bearing seat (130); arrangement of a connector assembly (300) on a radial side surface of the yoke (110); and overmolding the core (100) and the connector assembly (300) with an insulating material (400) so that the connector assembly (300) is fixed on the core (100), wherein the insulating material (400) defines an axial position of the bearing (200) in the bearing seat (130) after the overmolding.

Disclosed herein is a motor including a power connector capable of preventing current leakage to the outer case and structural interference with the outer case. The motor includes a stator provided with an insulator, a rotor configured to be rotated against the stator, a power connection portion provided in the insulator, and configured to support an end of a coil wound around the stator and configured to accommodate a mag-mate terminal, and a power connector coupled to the power connection portion to connect an external power source to the coil, wherein the power connector includes a lead wire, a fork terminal coupled to an end of the lead wire to electrically connect the lead wire to the coil and a housing configured to accommodate the end of the lead wire and the fork terminal and coupled to the power connection portion.