Abstract: A stator of an electric motor having a stator core with a plurality of salient stator poles, an insulating cap, a stator winding consisting of a winding wire, and an interconnection unit with a plurality of winding-wire receptacles having an inside, wherein the winding wire is surrounded by a material constituting the winding-wire receptacle and connected and welded thereto on the inside. The stator is of an electric motor which is of a very high quality and precision so that high-current applications are possible. Without any major adjustments, the stator is combinable with different winding connections and is flexibly adaptable to the rest of the motor and possibly to the electronics design. The manufacturing method is capable of being flexibly adapted to different wire diameters.

Abstract: A method for producing a wire coil. Multiple windings of a ply of the wire coil including an insulated wire are wound onto a coil core of the wire core starting from a first winding up to a last winding. The last winding is hooked in an electrically insulating deflection hook of the wire coil which is fixed with respect to the coil core and the wire is deflected by the deflection hook.

Abstract: An electric machine includes a stator formed from a plurality of stacked laminations and defining a center bore and a rotor disposed within the center bore. The rotor is configured to output a rotational torque in response to an input current delivered to the stator. At least one of the stacked laminations of the stator includes a pattern of perforations disposed at a yoke portion of the stator to attenuate structure-bore transmission of vibration during operation of the electric machine.

Abstract: A connection terminal includes a lower terminal portion, a bent portion, and an upper terminal portion. The bent portion extends radially inward from an upper end of the lower terminal portion. The upper terminal portion extends axially upward from a radially inner end of the bent portion. The upper terminal portion is located radially inside a radially inner end surface of a tooth. In a process of manufacturing a motor, a rotor main body is inserted into a radially inner side of a stator core, using a space defined radially inside the lower terminal portion.

Abstract: A stator includes a stator core and a stator winding. The stator core has a cylindrical shape and a plurality of slots. The stator winding includes a plurality of phase windings each including a plurality of segment conductors inserted into the slots and coupled to each other in series. Each of the segment conductors has a pair of straight parts and a bend. The pair of straight parts is accommodated in two of the plurality of slots. The bend protrudes from an end face of the stator core and couples the pair of straight parts to each other. In each of the plurality of slots, the number of the bends protruding from the end face of the stator core to extend in one of circumferential directions matches the number of the bends protruding from the end face of the stator core to extend in the other of the circumferential directions.

Abstract: A haptic transducer is provided, comprising a motor including a yoke, an inner cavity formed by the yoke, and a magnet assembly disposed within the inner cavity; a diaphragm disposed above the magnet assembly; a suspension extending concentrically around the diaphragm and having an inner edge attached to the diaphragm and an outer edge attached to the yoke; a cylindrical coil coupled to the diaphragm and suspended within the inner cavity around the magnet assembly; a first hole extending through the motor; and a second hole axially aligned with the first hole and extending through the diaphragm, a fastener extending through the first hole into the second hole. A footplate system is also provided, comprising a footplate configured for placement in a piece of footwear; a moving motor transducer configured to transfer haptic sensations to the footplate; and a top fastener configured to secure the haptic transducer to the footplate.

Abstract: A stator for a rotary electric machine includes a stator core and a stator winding. The stator core includes a core inner-peripheral portion including slots. The stator winding includes a phase winding including segment conductors. The phase winding includes parallel conductors connected in series. Each parallel conductor includes ones of the segment conductors connected in parallel. The segment conductors include weld end portions protruding from the slots, bent in circumferential directions of the stator core, and welded to one another to constitute conductor joint portions. The weld end portions include weld end portions which protrude from each of the slots and which include first and second weld end portions. The first and second weld end portions are bent in the circumferential directions. The second weld end portions are smaller in number than the first weld end portions.

Abstract: A cooling structure for a rotary electric machine includes: a plurality of cooling holes provided such that the cooling holes penetrate from an outer peripheral surface of a stator core to respective slots; a refrigerant supply mechanism configured to supply liquid refrigerant to supply cooling holes among the cooling holes, the supply cooling holes being configured such that radially outer ends of the supply cooling holes are placed above radially inner ends of the supply cooling holes in the gravitational direction; and a refrigerant guide provided between a rotor and a stator and configured to catch the liquid refrigerant falling down from the radially inner ends of the supply cooling holes through their corresponding slots and to guide the liquid refrigerant to slots placed on the lower side in the gravitational direction among the slots.

Abstract: A stator assembly for an electrical machine comprises an annular core extending around an axis (X) and comprising a plurality of axially extending slots. A plurality of electrical windings are arranged in the slots and have end portions arranged at the axial ends of the core. A cooling jacket at least partially extends around a radially outer surface of the core. At least one annular cooling plate is mounted to an axial end of the cooling jacket and arranged in thermal contact with the end portions of the electrical windings.

Abstract: A stator has a stator core composed of teeth and slots. Segment coils are inserted into the corresponding slots. The segment coil projecting from the slot has an exposed conductor part and a covered conductor part covered with an electrical insulation film. The exposed conductor part is arranged at the distal end side from the covered conductor part of the segment coil. The segment coils are connected together through the exposed conductor parts thereof projecting from the slots. The exposed conductor part has a thickness T2 thinner than a thickness T1 of the covered conductor part. A step part is formed at a position of the stator core side, adjacent to the exposed conductor part of the segment coil. The step part and the covered conductor part are covered with the electrical insulation film continuously from the stator core side of the covered conductor part.

Abstract: An unenclosed electric traction machine has a stator built up from a stator laminated core, and a rotor shaft with a rotor, mounted on the latter, built up from a rotor laminated core, wherein the stator laminated core is arranged between two outer pressing plates, and at least one bearing shield, which in each case has a bearing for the rotor shaft. Along a section of the periphery of the stator laminated core, and spaced apart from the stator laminated core, at least one cover, designed as a tension bar between the pressing plates, is arranged between the pressing plates so as to form at least one cooling box, with a base on the surface of the stator laminated core, wherein the at least one intermediate space between the base and the at least one cover of the cooling box is designed for the routing of a cooling fluid.

Abstract: Disclosed herein are a stator and a method for manufacturing the same. The stator according to embodiments of the present disclosure includes an insulating part and a plurality of stator coils each having two ends electrically connected to form one joint portion. The insulating part is configured to cover at least respective parts of the joint portions, and to provide a distance between neighboring joint portions. Accordingly, a partial discharge caused by a surge between the joint portions of the stator coils may be prevented, allowing operational reliability of the stator to be increased.

Abstract: According to one embodiment, a tactile actuator can comprise: a housing having an accommodation space therein; a cap covering at least a portion of the accommodation space; a vibration unit disposed inside the accommodation space; an elastic member for connecting the housing and the vibration unit such that the vibration unit can vibrate with respect to the housing; a coil for forming a magnetic field to drive the vibration unit; and a control unit for determining any one driving mode on the basis of collected driving information from among a plurality of preset driving modes and determining, according to the driving mode, the characteristic of a current to be applied to the coil.

Abstract: The innermost first segment layer and the second segment layer adjacent thereto in a radial direction are twisted using a twisting jig unit including an inner twisting jig and an outer twisting jig, then the twisting jig unit is replaced with another twisting jig unit including an inner twisting jig and an outer twisting jig, and the third segment layer and the fourth segment layer adjacent thereto are twisted, and then the twisting jig unit is replaced with still another twisting jig unit including an inner twisting jig and an outer twisting jig, and the fifth segment layer and the sixth segment layer adjacent thereto are twisted.

Abstract: A magnetizing yoke prevents coils from being damaged and/or broken when an object to be magnetized is magnetized, more securely as compared with any conventional arts. The magnetizing yoke includes a slot member made of thermoplastic resin and formed with slots for inserting and fixing windings of an iron core, wherein the slot member is inserted into and fixed to the iron core. The magnetizing yoke is manufactured using a simple step of mounting the slot members made of resin on the iron core.

Abstract: A stator (1) for an electric machine (100) has stator laminations (3) stacked in an axial direction (A) to form a stator lamination stack (2). The stator laminations (3) have strip-shaped inserts (4) extending in a radial direction (R). The inserts (4) have a higher thermal conductivity than the rest of the stator lamination (3). The stator laminations (3) are rotated in relation to one another in an azimuthal direction (U) about an angle of rotation (D) in such a manner that the inserts (4) of directly adjacent stator laminations (3) are not arranged one above another in the axial direction (A). An electric machine (100), a motor vehicle (200) and a method for producing a stator (1) also are provided.

Abstract: This application provides a rotor of a motor, including: a rotating shaft, provided with at least one first liquid outlet; a first end plate, disposed on an outer wall of the rotating shaft and perpendicular to the rotating shaft, where an inlet of at least one third passageway is provided on the first end plate; a second end plate, disposed on the outer wall of the rotating shaft and perpendicular to the rotating shaft, where an outlet of the at least one third passageway is provided on the second end plate; and a plurality of lamination sheets, disposed between the first end plate (103) and the second end plate, where at least one second through hole on each of the plurality of lamination sheets forms the at least one third passageway.

Abstract: A method of manufacturing a rotary electric machine armature that includes a cylindrical armature core in which a plurality of slots that extend in an axial direction are disposed in a circumferential direction and a coil wound around the armature core, the slots having respective radial openings that open in a radial direction, and the coil being formed by joining a plurality of segment conductors to each other.

Abstract: An axial flux motor having reduced spatial harmonics including a rotor with a plurality of magnets. A rotor shaft is coupled to the rotor. A stator faces the rotor and an air gap defined between the rotor and the stator. The stator includes a plurality of electromagnetic components defining a plurality of magnetic poles. The electromagnetic components include a plurality of posts, a plurality of slots, and a plurality of distributed electrically conductive windings disposed in and spanning across nonadjacent slots of the plurality of slots. At least one electrically conductive winding has a winding pitch span of greater than or equal to about 3 to less than or equal to about 20. The axial flux motor may include two rotors and one stator or alternatively two stators and one rotor. Such axial flux motors have short pitch provide desirable reduced spatial harmonics to enhance motor performance.

Abstract: A liquid-cooled rotating electric machine may include an inner stator and outer rotor configured to rotate about the stator. A hub may be disposed within the inner stator and a heat exchanger may be disposed in the hub. The heat exchanger may be configured to enable the flow a liquid through it to dissipate heat from the stator.