A stator of an electric motor comprises a pole chain, which is made of a stack of a plurality of straight transformer sheets and rounded to a circular configuration by bending the stacked transformer sheets, wherein the pole chain has a plurality of pole portions each comprising a pole tooth; a plurality of winding cores attached to the respective pole teeth for accommodating coils of a three-phase winding comprising wires; wherein the wires of respective phases of the three-phase winding are routed spatially separated from each other and without mutual contact at an axial end surface of the pole chain between and along adjacent winding cores around the pole chain; and wherein the wires are supported and guided such that their positions relative to the pole chain are substantially maintained when the pole chain is rounded from its straight configuration to its circular configuration.

A stator includes a plurality of core constituent members arranged side by side in a circumferential direction, each of which has a tooth extending in a radial direction and a pair of core outer extension portion extending in the both circumferential directions from a radial outer end portion of the tooth, and an insulator covering at least a part of the tooth, and a coil wound around the tooth via the insulator. The coil includes a terminal inner coil having a terminal line which is drawn from the radially inner side to the one axial side. The insulator covers the tooth that are circumferentially adjacent to the tooth around which the terminal inner coil is wound. The insulator has a restriction portion so as to restrict the movement of the terminal line of the terminal inner coil.

An electric work machine includes: a motor having a rotor disposed in an interior of a stator and being rotatable about a rotational axis; and an output shaft, on which a tool accessory is mountable and which is configured to be driven using motive power output from the motor. The stator includes: a stator core; a coil wound on a portion of the stator core; and a fusing terminal disposed more inward in a radial direction of the stator core than the coil and being connected to the coil.

The present invention relates to an injection molding stepping motor, including an injection molding stator assembly and a rotor assembly, wherein the injection molding stator assembly includes a stator iron core, a front framework, a rear framework, a stator winding, a front lining ring, a rear lining ring and a mounting bracket, the stator winding is wound in a groove of the stator iron core into which the front framework and the rear framework are inserted, the front lining ring and the rear lining ring are mounted on two sides of the stator iron core, the stator iron core is fixed on the mounting bracket, and the front lining ring and the rear lining ring each adopts a structure which is formed by punching and laminating thin plates with different inner diameters. Compared with the prior art, the present invention has the advantages of reducing axial magnetic flux leakage of a motor and improving the moment of the motor.

Stator of an electric machine, wherein the stator comprises a stator yoke, wherein stator teeth for receiving electrical windings are disposed on the stator yoke, wherein one tooth shoe is disposed on the radial end of each of the stator teeth, wherein the tooth shoe is configured as a separately manufactured component, wherein the tooth shoe 4 upon attaching the electric winding to the stator tooth is able to be plugged in a force-fitting and/or form-fitting manner onto the stator tooth, wherein the connection between the tooth shoe and the stator tooth is configured by means of dovetail joint.

Stator for an electric motor, comprising the following components: at least one first basic stator, wherein the basic stator is formed from at least two basic stator modules which in an annular manner are disposed in series, wherein the first basic stator module conjointly with the at least second basic stator module forms a stator yoke, wherein each of the basic stator modules configures a stator tooth that extends radially from the stator yoke; at least one tooth shoe, wherein the tooth shoe is connected to the stator tooth in a force-fitting and/or form-fitting manner by means of a tongue-and-groove connection, in particular by means of a dovetail joint; at least one electric winding; at least one insulation which electrically isolates the basic stator from the winding, at least one expansion means; as well as at least one cooling device, wherein the components are able to be combined in a modular manner.

In some examples, a connecting ring may connect to a stator coil. The connecting ring may include at least one linear conductor integrally formed in a ring-like shape. Further, the connecting ring may include a terminal section integrally formed in the linear conductor, the terminal section including a hole configured to receive a wire end of the stator coil inserted into the hole in an insertion direction. In addition, the connecting ring may include a cylindrical protrusion having an opening in communication with the hole. The cylindrical protrusion may protrude away from the hole in the insertion direction. Additionally, the connecting ring may include bends for raising a first portion of the connecting ring including the terminal section in the insertion direction relative to a second portion of the connecting ring. An insulating member may cover the second portion of the connecting ring.

A stator segment for an electric machine, in particular for a wind turbine generator is provided, the stator segment including a support structure, a lamination stack, and at least one fastening member for fastening the lamination stack to the support structure, wherein the lamination stack includes a plurality of lamination packets stacked between a drive end and a non-drive end, each lamination packet including a yoke having a plurality of teeth extending radially outwards on one side of the yoke and a connection structure formed at the side opposite the teeth, the connection structure being shaped to engage with the at least one fastening member in such a way that a part of the fastening member extends within the yoke. Furthermore, a stator, a wind turbine and a method of manufacturing are provided.

Disclosed are axial-gap electrical machines which magnetic core elements are made of wound magnetic ribbons to provide relatively lightweight and small size implementations that can be operated in a wide range of operational modes with minimized magnetic and electrical losses. The axial-gap electrical machine includes a cylindrically-shaped stator assembly having a central passage passing therealong, a rotatable shaft passing within the central passage of the stator assembly coaxial to the axis of rotations of the electric machine, and one or two annular rotor assemblies concentrically attached to the shaft and magnetically coupled to the at least one cylindrically-shaped stator assembly. The stator assembly can have a plurality of prism-shaped magnetic core elements made from a plurality of magnetic ribbon layers extending along its length, and a primary winding comprising a plurality of coils mounted over the prism-shaped magnetic core elements.

A stator for a rotary electric machine of an embodiment includes: a dividing core including a yoke portion and a teeth portion protruding in an inner peripheral direction from the yoke portion; bobbins that are made of an insulating material and are arranged on both ends in an axial direction of the dividing core; a coil that is wound around the bobbin; and insulating papers that are arranged along an inner peripheral surface of the yoke portion and a side surface of the teeth portion and insulate the coil and the dividing core from each other between both the bobbins, and each of the bobbins is formed with a groove into which an axial end of the insulating paper is inserted, and the groove is configured such that a width dimension of a part along the inner peripheral surface of the yoke portion is larger than a width dimension of a part along the side surface of the teeth portion.