Patent application number | Description | Published |
20120126646 | INTERMEDIATE CONNECTION MEMBER, STATOR AND MOTOR - An intermediate connection member which electrically connects an output terminal of a bus bar installed inside a motor case with an external connection terminal located in a distance from the output terminal. The intermediate connection member preferably includes both of a terminal member which is connected to the output terminal and a connecting line which is connected to the external connection terminal. The connecting line is defined by binding a plurality of wire rods together. | 05-24-2012 |
20120286593 | STATOR AND MOTOR - A stator is compatible with a variety of wiring configurations and possesses excellent versatility, while also preventing an increase in the size of a busbar unit. The stator includes a plurality of stator segments joined together to assume a cylindrical shape. Each stator segment includes a core segment including a core back portion and a tooth portion; a coil including a pair of coil wire terminals; an insulating layer arranged between the coil and the tooth portion; and a resin layer arranged to have the entire coil except for the coil wire terminals embedded therein. The resin layers of the stator segments include a supporting structure defined therein to allow a wiring member to be connected with any of the coil wire terminals to be attached to and removed from the stator. | 11-15-2012 |
20120293024 | STATOR SEGMENT AND MOTOR - A stator segment arranged to define a portion of an annular stator includes a core segment including a core back portion arranged to extend in a circumferential direction of the stator, and a tooth portion arranged to extend from the core back portion in a radial direction of the stator; a coil wound around the tooth portion and including a pair of coil wire terminals; an insulating layer arranged between the coil and the tooth portion; and a resin layer arranged to seal the entire coil except for the pair of coil wire terminals. Circumferential end walls of the resin layer are arranged circumferentially inward of circumferential end walls of the core back portion. | 11-22-2012 |
20130119808 | MOTOR - A rotary unit of a motor includes a shaft, a ring-shaped plate, a rotor core defined by a plurality of core pieces, and a plurality of magnets arranged along the circumferential direction. The core pieces and the magnets are alternately arranged in the circumferential direction. The ring-shaped plate and the respective core pieces are fixed to each other by combining the recesses provided in one of the ring-shaped plate and the respective core pieces and the protrusions provided in the other of the ring-shaped plate and the respective core pieces or combining a first through-hole provided in the ring-shaped plate and a protrusion provided in each of the core pieces. The core pieces are fixed to the ring-shaped plate without having to provide a through-hole in each of the core pieces. This reduces a magnetic resistance of each of the core pieces. | 05-16-2013 |
20130169106 | SINGLE-PHASE INDUCTION MOTOR - A single-phase induction motor in which coils are wound around a plurality of teeth by a concentrated winding method is constructed such that an area of a smallest of all cross-sections of a core back element taken along planes which are parallel or substantially parallel to an axial direction is about 0.90 or more times an area of the smallest of all cross-sections of the teeth taken along planes which are parallel or substantially parallel to the axial direction, to prevent or minimize leakage of the magnetic flux. | 07-04-2013 |
20130181569 | BUS BAR, MOTOR, AND PROCESS FOR PRODUCING THESE - A bus bar which electrically connects end portions of a plurality of conductive lines and a method for manufacturing the bus bar are such that an intermediate region of a single wire rod is folded to define a plurality of terminal forming portions extending to a lateral direction of the wire rod. The whole wire rod including the terminal forming portion is rolled. The rolled wire rod is bent into a certain shape. | 07-18-2013 |
20130193800 | ARMATURE AND MOTOR - An insulator of an armature includes an upper resin member and a lower resin member. Each of the upper and lower resin members includes decreased thickness portions. Axial positions of the decreased thickness portions of the upper and lower resin members are arranged to overlap at least partially with each other. Each of the upper and lower resin members further includes a rib arranged to project from a corresponding one of the decreased thickness portions. The rib improves the strength of the corresponding decreased thickness portion and reduces the likelihood that any of the decreased thickness portions of the upper and lower resin members will be damaged when the two members are fitted to each other. | 08-01-2013 |
20130221770 | ARMATURE AND MOTOR INCLUDING ARMATURE - An armature includes an insulator mounted on a tooth portion around which a conducting wire is wound. A pair of a first member and a second member, which are combined so as to abut each other, is provided. The first member includes a first end wall which covers an upper side end in the axial direction of the tooth portion and a pair of first side walls which partially cover both side portions of the tooth portion. A first overlap portion is provided on a tip portion of the first side wall. A plurality of ribs extending so as to be parallel or substantially parallel to the winding direction of the conducting wire is disposed on an outer surface of the first overlap portion. | 08-29-2013 |
20130257183 | STATOR PORTION OF MOLDED MOTOR, AND MOLDED MOTOR INCLUDING THE SAME - A stator portion of a molded motor includes a plurality of windings, a wiring board, and a resin arranged to cover at least a surface of each winding. The wiring board includes a through hole extending through the wiring board in an axial direction. The through hole is arranged axially opposite to any winding to facilitate discharge of air out of a gap between the wiring board and the winding during a molding process, while the distance between the wiring board and each opposed winding is short in the stator portion of the molded motor. The resin is thus continuously arranged in gaps between the windings and the gap between the wiring board and each opposed winding. | 10-03-2013 |
20140126956 | SOLDER JOINT STRUCTURE AND SOLDER JOINING METHOD - A solder joint structure includes a metal pin in the shape of a prism or a circular or substantially circular cylinder; an aluminum wire including a wound portion wound around the metal pin; and a solder layer arranged to join the metal pin and at least one portion of the wound portion to each other. The at least one portion of the wound portion includes a deformed surface resulting from a partial disappearance or elimination of the aluminum wire in a cross-section perpendicular or substantially perpendicular to a direction in which the aluminum wire extends, and the solder layer is directly and closely adhered to the deformed surface. | 05-08-2014 |
20140346918 | MOTOR AND METHOD OF MANUFACTURING MOTOR - A stationary portion of a motor includes a stator core, insulators, and coils. The stator core includes a core back having an annular shape, and a plurality of teeth extending radially inward from the core back. A radially inner end portion of each tooth has a circumferential width substantially equal to or smaller than a circumferential width of a remaining portion of the tooth. The core back includes a protruding portion protruding radially inward between adjacent teeth, a cut extending radially outward from the protruding portion, and a through hole extending in an axial direction through the core back defined at a radially outer end portion of the cut. The protruding portion increases a radial dimension of the core back to achieve a reduction in magnetic reluctance in the vicinity of the cut. | 11-27-2014 |
20150008769 | MOTOR AND METHOD OF MANUFACTURING MOTOR - A stationary portion of a motor includes resin bodies including an inner and outer resin portion arranged between a tooth and a coil and between the tooth and an insulator. The outer resin portion covers circumferentially outer sides and axially outer sides of the coil. The inner and outer resin portions are continuous with each other through a connecting resin portion. The insulator includes an opening portion arranged to extend along circumferential side surfaces of the tooth. The inner resin portion is arranged to contact the circumferential side surfaces of the tooth and a conducting wire in the opening portion. Heat generated in the coil is transferred to the tooth through the resin body such that a large area of a path along which the heat is transferred from the coil to the tooth is secured. | 01-08-2015 |