Abstract: Stator (10), electric machine (9), and method for manufacturing an electric machine (9), with a stator base body (34), which comprises radial stator teeth (14) for receiving an electric winding (20), wherein the electric winding (20) is connected to a separately manufactured connection plate (52), which comprises contacting modules (60) for the energizing of individual phases (U, V, W) of the electric winding (20), wherein electric conductor elements (54) are arranged in a radial plane of the stator (10) on the connection plate (52), which, on the one hand, are connected to winding wires (22) of the electric winding (20) and, on the other hand, carry the contacting modules (60), wherein the conductor elements (54) comprise a plurality of angled portions (56) within the radial plane, which make a spring-loaded compensation movement of the contacting modules (60) in the radial plane possible.

Abstract: A metal article, such as a stator core, is formed from a continuous strip of wound sheet stock material including winding slot cutouts. The winding slot cutouts are maintained at a substantially constant width throughout most of the radial extent of the winding slots in the finished article, except that one or more of the first and/or last wound layers (i.e., the radially innermost and radially outermost layers) may define winding slot cutouts that are wider than the other winding slot cutouts. Several radial layers may define cutout widths that are progressively expanded such that the resulting winding slot has terminal ends with edges that defining a stair-step profile that approximates a “radiused” or rounded edge. This rounded edge profile protects windings projecting radially into or outwardly from the winding slots near the edge of such slots.

Abstract: Disclosed are a split stator and a manufacturing method thereof with which insulation reliability can be improved by preventing deformation or cracking of the insulator by eliminating slippage of the insulator at the coil end face. A slip prevention mechanism that prevents slippage of the insulator is provided at the coil end face, and using insert molding, the insulator is integrally molded to a split stator core provided with the slip prevention mechanism.

Abstract: A rotor core is provided for an electric machine. The rotor core includes a body extending a length along, and being configured to rotate about, a central longitudinal axis. The body includes spokes arranged radially about the central longitudinal axis and conductor openings arranged radially about the central longitudinal axis. The radial arrangement of the spokes and conductor openings about the central longitudinal axis includes an alternating pattern of spokes and conductor openings. The spokes include slots extending therethrough along the central longitudinal axis. The slots are positioned radially about the central longitudinal axis between adjacent conductor openings. The rotor core also includes conductors extending within the conductor openings of the body.

Abstract: A rotating electric machine includes an annular stator including a coil formed by winding a part of a coil wire around a stator core, and the coil wire includes the coil wound around stator teeth, a terminal portion drawn out from one end portion of the coil over a yoke portion, and a wiring drawn out from the other end portion of the coil over the yoke portion and connected to a terminal portion of another coil wire including another coil provided at a distance from the coil in a circumferential direction of the stator.

Abstract: A rotor assembly is assembled by providing an elongated rectangular strip of material having a first edge and a second edge defining a width, cutting the elongated rectangular strip to form a first patterned strip having a first side corresponding to the first edge, winding the first patterned strip portion around the perimeter of the rotor core such that the first edge is adjacent to the perimeter and the patterned strip portion forms a continuous laminated ring structure. Two laminated ring structures can be cut from a single strip, thereby reducing waste material and forming a strong structure.

Abstract: When accommodating a cage stator coil in a stator core made up of distributed cores, an end side distributed core composing end side core at an end side in axial direction is made larger than a central side distributed core composing central side core. The cage stator coil is formed by compressing a central portion of an original cage stator coil. The end side segment core composing the end core is set at a central portion in an axial direction of the cage stator coil then the end side coil is moved to an end portion in the axial direction. The central side segment core composing the central core is set at the central portion in the axial direction of the cage stator coil thereafter.

Abstract: An electric motor has a rotor (52) and a stator (60) equipped with salient poles on each of which is provided a winding (88 to 99), which windings together form a winding arrangement (85?), electrical connecting leads (88? to 99?) being provided between at least some of the windings. The stator (60) further has electrical connecting elements (108 to 119) that are arranged on at least one insulating carrier (102) and are equipped with contact elements (108? to 119?) and with mounting elements (108?? to 119??), which latter serve for electrical and mechanical connection to the connecting leads (88? to 99?). The use of a printed circuit board (140) formed with press-fit seats, to receive the contact elements, facilitates rapid, secure and automated connection of stator windings to other circuit parts, which is particularly useful in making low-voltage, high-current motors such as those used in mining.

Abstract: An insulating bobbin for disposition between a stator core and a stator winding of a stator of a rotating machine, the stator winding being wound around the stator core by way of the insulating bobbin, the insulating bobbin comprising a coil end section at which an end portion of the stator winding is disposed, a slot side section forming a slot for winding thereon the stator winding, and a corner section having a curved surface and connecting between the coil end portion and the slot side portion, the corner section having a first radius of curvature at a side closer to the coil end section and a second radius of curvature at a side closer to the slot side section, the second radius of curvature being larger than the first radius of curvature.

Abstract: A stator winding for a slotless motor is formed by winding a magnet wire 22 into a single layer coil 24. The coil 24 is deformed e.g., by pressing, to form a double layer web 26 which is rolled up end to end to form a cylindrical stator winding 20. The coil 24 is divided into a number of phase windings 27 extending between connection tappings 25. The magnet wire 22 is a multi-core magnet wire formed from a plurality of core wires 23. Each core wire 23 is an insulated single core wire. Optionally the core wires are twisted together. The core wires 23 are electrically connected together at the connection tappings 25 to form a plurality of parallel electrical paths or sub-windings.

Abstract: A gap winding motor includes a stator and a rotor. The stator includes a stator core and air-core coils for generating a rotating magnetic field which are attached to an inner peripheral surface of the stator core. The rotor is disposed so as to face the stator with an air gap therebetween. A stator core is divided into two core portions in an axial direction of the motor, and a spacer is disposed between the core portions. A unique air-gap section is provided between the core portions, and coil terminal processes are performed in the air-gap section between the core portions.

Abstract: A stator in which coil conductors of three phases are disposed in a plurality of slots provided in a stator core, wherein the coil conductors are formed by connecting a plurality of slot conductor portions disposed in the slot, a plurality of coil end conductor portions extending in a circumferential direction of the stator core on an outer side of an axial end surface of the stator core, and a plurality of upstanding conductor portions, each of which connects the coil end conductor portion and the slot conductor portion.

Abstract: A stator for an electrical machine includes a back iron including a substantially cylindrical annular structure having an inner surface and an axis. A plurality of supports are fabricated of non-magnetic material, each support extending parallel to the axis of the annular structure along the inner surface of the annular structure, each support including a primary base and at least two primary support members. The primary bases substantially conform to the inner surface of the back iron with the primary support members extending radially inward from the primary base towards the axis of the annular structure. A stator winding is positioned between the at least two primary support members and between the primary base of the support and the axis of the annular structure.