To provide a motor in which an insulating film of a magnet wire can be reliably peeled off at a target position and connection reliability between the magnet wire of which the insulating film is peeled off and an external connecting terminal is high irrespective of accuracy of a winding machine and presence or absence of an aligning winding. A crossover wire is bridged over at least a pair of cross-linking holding portions provided in an annular wall of an insulator via a slit portion, of which an insulating film is peeled off, is welded to a terminal mounted on a terminal mounting portion to be assembled thereto.

A machine that forms the heads of coils made of rectangular wire so that it fits within the slots of the stator of an electric machine is described herein. The machine receives a coil having unformed first and second heads separated by first and second legs and apply controlled deformation thereto to yield properly shaped heads. The machine comprises first and second leg support mechanisms for gripping the first and second legs and head-forming elements for contacting portions of the heads of the wire coil while the first and second legs are gripped by the leg support. The head-forming elements are mounted to the first and second leg support mechanisms. Actuators are provided for causing sequential actuated movements of one of the first and second legs to force the head-forming elements into contact with different portions of the first and second heads while allowing selective free movements of the other leg in response to the actuated movements so as to prevent uncontrolled deformations of the wire coil during the actuated movements.

There is configured a coil unit arrangement device that forms an array coil group by arranging in a predetermined arrangement order each relevant coil of a coil unit in which a plurality of coils corresponding to a plurality of phases is connected by a jumper wire for each phase, the coil unit arrangement device including: a holding section provided with a rotatable coil unit support that supports the coil unit; and a receiving section provided with an array coil group support that supports the array coil group, the receiving section relatively turning with respect to the holding section.

A method for producing a stator having a form-wound coil for use in a generator of a gearless wind power installation is provided. Circumferentially adjacent form-wound coils are inserted into slots of a stator in succession, where a predetermined number of the first form-wound coils to be inserted are being-inserted only partially into the slots or are positioned in front of the slots and are only fully inserted into the corresponding slots together with a predetermined number of the form-wound coils to be inserted last. A winding structure and a stator having the form-wound coil are provided.

A bending device for a wire includes a holder including a stepped part, the stepped part includes a side-surface corner and a flat surface, and the side-surface corner includes a curved surface. The bending device includes a guide member configured to push the wire against and along the curved surface, and the guide member revolves around a rotational axis of the guide member. The rotational axis of the guide member is disposed on a same axis as a center of the circle defining the curved surface of the holder.

A stator manufacturing apparatus includes: an insert piece having such a stepped structure that a width of the insert piece increases along a winding axis direction of a coil from a side to be fitted into the coil, fitted into the coil, configured to maintain an inside width of the coil; and an insert piece driving unit configured to move the insert piece along the winding axis direction of the coil.

A form-wound coil of a stator of a generator of a gearless wind power installation is provided. The form-wound coil includes an electrical conductor with a first and a second terminal. The terminals are used serve in each case for electrical connection to a further form-wound coil. The terminals in each case have a thread for electrical connection using a screw. A winding structure, a stator having the form-wound coil, and a method for producing the stator are also provided.

This disclosure discloses a coil. An outer shape of the coil as viewed from the first direction has an approximately rectangular shape or an approximately square shape with four corner parts. The coil includes at least one parallel part extended parallelly along the circumferential direction, and at least one connecting part arranged at a portion corresponding to any of the four corner parts, the at least one connecting part being extended along a diagonal direction with respect to the circumferential direction to connect the two parallel parts.

A method for manufacturing a coil module for a stator for a tubular linear motor includes placing a plurality of bobbins and spacers on a winding mandrel and winding the plurality of bobbins with a single length of wire to form a set of coils. Three sets of such coils are interleaved on an encapsulation mandrel. A plurality of metal comb shaped elements, each including a longitudinal spine and a plurality of teeth are distributed about the circumference of the three interleaved sets of coils to form a coil module. The coil module and the mandrel are surrounded with an encapsulation mold. An encapsulating material is introduced into the encapsulation mold. The encapsulated coil module is removed from the encapsulating mold and the encapsulation mandrel after setting of the encapsulating material.

A permanent magnet synchronous motor is provided in the present disclosure. The permanent magnet synchronous motor includes a rotor and a stator, wherein the rotor comprises a rotating shaft and a cylindrical magnet surrounding the rotating shaft, the stator comprises a base, a cylindrical core received in the base and surrounding the magnet and coil windings assembled with the core, the coil windings are symmetrical about the center axis of the core, the coil winding comprises a plurality of coils inserted into the core, each coil comprises a body part and extended parts respectively extended from two ends of the body part, a plurality of body parts are superposed and disposed in the core, a plurality of extended parts are respectively extended in the radial direction of the core and fixed on two end faces of the core, and the plurality of extended parts are partially superposed and distributed in a step shape.