Class / Patent application number | Description | Number of patent applications / Date published |
310216041 | Having axially extended spiral lamination | 12 |
20110175486 | WINDINGLY LAMINATED CORE OF ROTARY ELECTRIC MACHINE AND MANUFACTURING METHOD THEREOF - A windingly laminated core of a rotary electric machine, having a first number of magnetic poles in total and configured by unit cores, each of which is formed in an arc and thin plate shape and has a second number of magnetic poles, wherein a winding lamination is applied to the unit cores in a circumferential direction and in a spiral manner so as to form a cylindrical shape and a lamination thickness in an axial direction of the winding lamination is set to a predetermined thickness, includes an adjustment unit core having magnetic poles whose number is less than the second number, wherein the adjustment unit core is arranged at a start or an end of the winding lamination, in a circumferential direction, in order to align a rotational phase of the start of the winding lamination to a rotational phase of the end of the winding lamination. | 07-21-2011 |
20120091852 | ELECTRICAL MACHINE - The invention relates to an electric machine, comprising a rotor ( | 04-19-2012 |
20120223609 | STATOR CORE OF ROTATING ELECTRICAL MACHINE AND MANUFACTURING METHOD THEREOF - A manufacturing method of a stator core of a rotating electrical machine includes a finishing process that simultaneously moves a coining punch divided in a circumferential direction and arranged around a helically stacked core to a center side in a radial direction and presses an outer surface of a core-back part of the helically stacked core while pressing an end side of the helically stacked core in an axial direction by a holding device. | 09-06-2012 |
20130214637 | ELECTRICAL MACHINE - A method of making generally symmetrical lamination stacks for electrical machines comprises producing generally symmetrical pole tips from alternating asymmetrical pieces that each have an additional layer in the asymmetrical portion. With the alternating asymmetrical pieces combined, the resulting pole tip is generally symmetrical with a larger possible pole tip width compared with currently-used interleaved stamping techniques. | 08-22-2013 |
310216043 | Having bending notch | 8 |
20100001612 | LAMINATED CORE AND METHOD FOR MANUFACTURING THE SAME - A laminated core ( | 01-07-2010 |
20100090560 | LAMINATED CORE AND METHOD FOR MANUFACTURING THE SAME - A laminated core | 04-15-2010 |
20100213785 | LAMINATED CORE AND METHOD FOR MANUFACTURING THE SAME - A laminated core ( | 08-26-2010 |
20100270888 | LAMINATED CORE AND METHOD FOR MANUFACTURING THE SAME - A laminated core ( | 10-28-2010 |
20100283351 | LAMINATED SPIRAL CORE, DYNAMO-ELECTRIC-MACHINE ROTOR PROVIDED THEREWITH, AND DYNAMO-ELECTRIC MACHINE - A laminated spiral core includes core units and a plurality of swage portions. The core units form a rotor core. The core units have permanent-magnet attachment portions in which permanent magnets are to be disposed. Each of the core units has an arc shape. The plurality of swage portions connect the core units by swage-joining when the core units are spirally stacked in a predetermined number of layers. The plurality of swage portions are provided in the core units in a wave-shape to face the permanent-magnet attachment portions and provided at positions where an influence of magnetic flux paths in a rotor is minimal. | 11-11-2010 |
20120043848 | CONTINUOUSLY FORMED ANNULAR LAMINATED ARTICLE AND METHOD FOR ITS MANUFACTURE - An apparatus and method for the production of relatively large diameter annular components, such as stator cores for electric motors, without excessive waste of material. In one embodiment, a first progressive die assembly forms a plurality of identical pole pieces each made of a plurality of individual stacked and interlocked laminations. The pole pieces, having protruding end portions, are loaded into a rotary carousel. A second progressive die assembly forms a continuous strip including a plurality of body segments connected via hinge portions disposed adjacent recesses between the body segments that are dimensioned to receive the protruding ends of the pole pieces. As the continuous strip is formed, it is wound about the rotary carousel with progressive pivoting of the body segments about the hinge portions to capture the protruding ends of the pole pieces within the recesses, with continued winding of the strip in a helical fashion around the rotary carousel continuing until a desired height is reached that is substantially equivalent to the height of the pole pieces. The strip is then cut, and the resulting annular part is welded at one or more locations to secure the components together. | 02-23-2012 |
20130033146 | SEGMENTED ROTOR AND STATOR LAMINATION CORES - In a lamination core, a punched material strip is wound to provide layers of the core. The material strip comprises a plurality of semi-circle individual strip segments linked by hinge-like carrying webs between adjacent split lines at adjacent ends of the respective adjacent strip segments. Each strip segment has a plurality of teeth defining slots. A segment arc angle of the segment is not equally divisible into 360° and a slot arc angle of the slots is equally divisible into the segment arc angle, so that mated lines of one winding defined by respective adjacent split lines of adjacent are laterally offset with respect to mated lines defined by respective adjacent split lines of an adjacent winding. | 02-07-2013 |
20160099616 | IRON CORE MEMBER, INNER ROTOR TYPE STATOR FOR ROTATING ELECTRICAL MACHINE, AND METHOD FOR MANUFACTURING INNER ROTOR TYPE STATOR FOR ROTATING ELECTRICAL MACHINE - An iron core member has: first divided yoke portions; second divided yoke portions alternately arranged with the first divided yoke portions; a first tooth portion extending from one circumferential end of each first divided yoke portion, a second tooth portion extending from the other circumferential end; a third tooth portion extending from one circumferential end of the second divided yoke portion on the second tooth portion side, and a fourth tooth portion extending from the other circumferential end. A tooth end portion of the first tooth portion and a tooth end portion of the adjacent fourth tooth portion are integrally joined at a first tooth end joint portion, and a tooth end portion of the second tooth portion and a tooth end portion of the adjacent third tooth portion are integrally joined at a second tooth end joint portion, thereby providing one continuous sheet of the core member. | 04-07-2016 |