Class / Patent application number | Description | Number of patent applications / Date published |
310216131 | Secured by axially directed clamping means (e.g., spring clip) | 17 |
20100187945 | METHOD FOR MANUFACTURING AND TRANSPORT OF A GENERATOR STATOR CORE - A method for manufacturing and preparing for assembly a stator core of a generator, the stator core having a central cylindrical bore along a longitudinal axis of the stator core, the method including in a first step, mounting a first press plate onto a tooling device and concomitantly and/or subsequently positioning at least one key bar to be manufactured in an axial direction with respect to the longitudinal axis in a spaced manner along a peripheral circumference of the first press plate. The method includes in a second step, stacking a plurality of generator laminations onto the first press plate and mechanically coupling the plurality of generator laminations with the at least one key bar and, in a third step, mounting a second press plate onto the plurality of generator laminations, fixing the second press plate to at least one of the at least one key bar and at least one axial fixing device and concomitantly and/or subsequently exerting axial stress on the first and the second press plates. | 07-29-2010 |
20120299436 | STATOR FOR ROTATING ELECTRICAL DEVICE AND STATOR RETAINING RING - A stator for a rotating electrical device includes a stator retaining ring for the stator in a cylinder form that retains a plurality of cores. The stator retaining ring includes the cylinder portion where the cores are attached, and a plurality of fixing flanges where the stator retaining ring retains the housing with screws. A pair of through-holes representing a group of through-holes arranged near to one another extends through each of the fixing flanges. A separation distance β in the circumferential direction defined between the pair of the through-holes belonging to the same group of the through-holes is smaller relative to a separation distance γ in the circumferential direction defined between adjacent through-holes belonging to different groups of the through-holes. | 11-29-2012 |
20130193801 | CONICAL SPRING WASHER FOR MOUNTING A STATOR IN THE HOUSING OF AN ELECTRICAL MACHINE - An electrical machine ( | 08-01-2013 |
20130221795 | STEPPING MOTOR - A stepping motor comprises: a first plate having plural band connection portions; a second plate mounting a band portion; a stator; and a structure that the stator is held by the first plate and the second plate from a front side and a back side of axial direction, wherein the plural band connection portions are positioned at a side surface of the stator and extend toward the second plate, and each of the plural band connection portions has an engagement portion at an outside thereof, the band portion has plural arms extending toward the first plate and engaging with the engagement portion of each of the plural band connection portions, and the band portion is connected to the first plate by engaging the arm portions with the engagement portions in a condition that the band portion holds the second plate and the stator. | 08-29-2013 |
20140132110 | CONNECTION FOR MOTOR STATOR SEGMENTS - A motor is provided for use in a machine. The motor includes a segmented stator and a resiliently flexible clip. The stator includes a core having spaced apart arms and a yoke. The arms define an opening therebetween, and the yoke spans the opening. The clip is removably retained on the core so as to apply pressure against each arm toward the yoke such that the arms are retained in contact with the yoke. | 05-15-2014 |
20140167559 | ELECTRIC MACHINE STATOR SECURING METHOD - A vehicle including a movable element and an electric machine either driving or being driven by the movable element. The electric machine having first and second housing portions and a stator. The second housing portion is engaged with the first housing portion. The stator being coupled to the first housing portion and the second housing portion by way of compressive force applied to the stator by and between the first housing portion and the second housing portion. | 06-19-2014 |
20140346921 | DEVICE FOR RETAINING A MACHINE COMPONENT IN AN ELECTRIC MACHINE AND ELECTRIC MACHINE - The invention relates to a device for retaining a machine component ( | 11-27-2014 |
310216132 | Positioned in core slot | 2 |
20110095643 | ROTOR FOR A MULTIPOLAR SYNCHRONOUS ELECTRIC MACHINE WITH SALIENT POLES - A rotor for a multipolar synchronous electric machine including a plurality of salient poles, each salient pole being surrounded by an induction coil; a ring integrating the plurality of salient poles; wherein each salient pole includes a polar body integral with the ring; two removable pole tips facing each other on either side of the polar body; front parts provided along the ends of the polar body, to radially maintain the induction coil in a transverse portion thereof; the polar body including two slots formed on either side of the polar body and having a shape adapted for receiving the pole tips; the front parts blocking the displacements of the pole tips in the slots. | 04-28-2011 |
20110273055 | Method and Apparatus for Retaining Laminations of a Stator of an Electrical Machine - A retainer in the stator of an electrical machine holds a plurality of stacked stator laminations in compression at an inner diameter of a stator core. The plurality of laminations have a central aperture and a plurality of teeth circumferentially spaced about the central aperture. The plurality of stacked laminations forms a contiguous stator core with a central aperture for housing a rotor and stator winding slots extending from one axial face of the stator core to an opposite axial face of the stator core. The retainer is adapted to be fitted in the stator slots adjacent the windings and adjacent the central aperture. The retainer extends from one axial face of the stator core to the opposite axial face of the stator core. The retainer has opposite longitudinal ends abutting the axial opposite faces of the stator core that hold the laminations in compression. | 11-10-2011 |
310216133 | Positioned in axial through hole | 1 |
20100264775 | ROTOR FOR AN ELECTRICAL MACHINE - A rotor for an electrical machine includes a first shaft part and a second shaft part, which is arranged separately from the first shaft part. A first supporting element is connected in a manner fixed against rotation to the first shaft part, and a second supporting element is connected in a manner fixed against rotation to the second shaft part. The rotor has a yoke which connects the first supporting element to the second supporting element and includes a plurality of laminates arranged one behind the other, and which has cutouts extending in the direction of the axis of rotation in the interior of the yoke, and permanent magnets arranged in the cutouts. The yoke has holes extending in the direction of the axis of rotation, with tensioning pins extending through the holes in the yoke to brace the laminates. | 10-21-2010 |
310216134 | Integral with supporting element | 7 |
20100176684 | DYNAMOELECTRIC MACHINE - An AC generator comprises a shaft, a rotor secured to the shaft, a stator with a stator core provided to surround the outer circumference of the rotor and having a plurality of slots formed to extend in the axial direction while spaced apart in the circumferential direction, and a front bracket and a rear bracket surrounding the stator core while clamping the circumferential edge portion of the stator core from the opposite sides in the axial direction using a plurality of clamping means. A pair of front stays formed in the front bracket are secured to a vehicle by means of bolts penetrating a pair of through holes formed, respectively, in the pair of front stays. The pair of through holes are formed at such positions as the perpendicular bisector of a line connecting the centers intersects the axis of the shaft, and one clamping means is provided on the shaft side perpendicular bisector. With such an arrangement, generation of magnetic noise can be prevented without increasing the weight of the bracket and thereby the overall weight. | 07-15-2010 |
20100320865 | ELECTRIC MOTOR - The invention relates to an electric motor having a stator and a rotor in a housing, wherein the stator comprises a plurality of lamellae that are disposed in parallel and are combined into a package. The lamellae are held together via a spring clamp, which overlaps the lamella package in an axial manner, wherein the spring clamp simultaneously supports the lamella package radially on the interior wall of the housing. | 12-23-2010 |
20120175996 | STATOR FOR ELECTRIC ROTATING MACHINE AND METHOD OF MANUFACTURING THE SAME - A stator includes a hollow cylindrical stator core comprised of a plurality of stator core segments, a stator coil mounted on the stator core, and an outer cylinder that is fitted on die radially outer surfaces of the stator core segments so as to fasten the stator core segments together. The stator core has a recess formed in the radially outer surface of one of the stator core segments. The outer cylinder has a slit that radially penetrates the outer cylinder to connect the radially outer and inner surfaces of the outer cylinder and an engaging portion that adjoins the slit. The engaging portion of the outer cylinder is plastically deformed radially inward into the recess of the stator core so as to abut and thereby engage with side walls of the recess which face the engaging portion. | 07-12-2012 |
20130093285 | STATOR CORE RETENTION CYLINDER FOR ELECTRIC MACHINERY - An electric machine system includes a rotor core, a stator core disposed about the rotor core, an electric machine housing coupled to the stator core, a holding-cylinder disposed between the electric machine housing and the stator core, a first flange coupled to the electric machine housing at a first end of the holding-cylinder and a second flange coupled to the electric machine housing at an opposite end of the holding-cylinder. | 04-18-2013 |
20130113334 | CLAMPING STRUCTURE FOR A STATOR CORE - A generator is provided comprising: a frame; a stator core comprising laminations; and clamping structure to axially clamp the laminations together. The clamping structure may comprise: a plurality of first finger plates engaging a first end of the stator core; a first spacer plate associated with the first finger plates and including a plurality of spaced apart first recesses; a plurality of first engagement structures, each comprising a bolt and a corresponding slidable bushing; a first spring ring in engagement with the first engagement structures; and first load-applying structure coupled to the frame to imparts a load to the first spring ring. | 05-09-2013 |
20130334926 | ROTOR MECHANISM OF ROTATING ELECTRICAL MACHINE AND METHOD OF MANUFACTURING SAME - In a rotor mechanism of a rotating electrical machine, a crimp groove is formed, in a circumferential direction, in an outer circumferential portion of any one of the end plates of a rotor shaft on an outside in the axial direction. The one end plate is located in the axial direction by an inside end of a crimp retainer in the axial direction that is ring-shaped, that covers the crimp groove of the rotor shaft to fit to the rotor shaft, that is fitted into the crimp groove of the rotor shaft by crimping an outside portion in the axial direction from an outer circumferential side and that engages with a wall surface of the crimp groove on the outside in the axial direction. | 12-19-2013 |
20140210306 | MOTOR - A motor includes a stator having a stator core, a first frame and a second frame, which are arranged on two axial sides of the stator core, a coupling member, which couples the first and second frames at a radially outer side of the stator while applying a holding load to the first and second frames in the axial direction, and a rotor, which is arranged at a radially inner side of the stator. The stator core includes a held portion that projects toward a radially outer side from a main circumferential portion of the stator core. The first and second frames hold, in between, at least the held portion of the stator core in the axial direction. | 07-31-2014 |