Patent classifications
H02K3/521
STATOR OF MOTOR AND INNER ROTOR-TYPE MOTOR INCLUDING STATOR
A stator of a motor comprises a core section including a core outer circumference part forming an annular shape and a plurality of core tooth parts projecting radially inward from the core outer circumference part; an insulator covering at least an outer circumference of each of the core tooth parts and an end face in an axial direction of the core outer circumference part; a coil wound on each of the core tooth parts via the insulator; and a terminal attached to the core outer circumference part via the insulator, an end portion of the coil being connected to the terminal, wherein the terminal includes: a leg portion extending in the axial direction; a hook portion including an open end opened in the axial direction and disposed on the core outer circumference part at a position corresponding to one of the core tooth parts in a circumferential direction, the end portion of the coil being connected to the hook portion; and a coupling portion extending from the leg portion in the circumferential direction along the core outer circumference part and connected to the hook portion, the insulator includes a terminal holding portion, to which the leg portion is attached, at a position in the end face of the core outer circumference part in a position not corresponding to the core tooth parts in the circumferential direction and a position corresponding to the leg portion of the terminal, the hook portion includes: a base end portion located on an outer side in the radial direction; a side piece portion located on the inner side in the radial direction to be arranged side by side with the base end portion; and a connecting portion connecting an end portion of the base end portion and an end portion of the side piece portion located on an opposite side of the open end side and forming a closed end, and the coupling portion of the terminal is bent to locate the hook portion radially outside the core tooth parts.
STATOR OF DRIVING MOTOR AND COIL CONNECTION ASSEMBLY OF THE STATOR
A stator of a driving motor and a coil connection assembly of the stator is provided. The coil connection assembly of the stator of the driving motor includes a coil connection portion that is drawn from a stator coil wound on a stator core in multiple strands. A ring terminal is electrically connected to the coil connection portion. The ring terminal includes a cylindrical connection compressing portion fitted with multiple strands of coils of the coil connection portion that are compressed by a set pressing force and connected with the coils. A bolt fixing portion is integrally formed with the connection compressing portion and has a engagement bore configured to engage a bolt. Conductive protrusions that penetrate an insulating film of coils of the coil connection portion by the set pressing force are formed on the inner periphery of the connection compressing portion.
Axial Air Gap Rotating Electric Machine
To ensure ready assembly of a stator and reliably reduce the shaft voltage in an axial air gap rotating electric machine, an axial air gap rotating electric machine has a circular ring-shaped stator formed by a plurality of stator cores arranged about a rotational axis direction in a ring shape. Each stator core comprises a tubular bobbin and a coil, with the tubular bobbin having an iron core inserted into a bobbin inner tubular portion substantially matching the peripheral shape of the iron core. The axial air gap rotating electric machine has a first conductive member having a horizontal portion and a vertical portion contacting the end surface of the bobbin opening portion. The horizontal portion contacts parts of the iron core outer peripheral surface and the inner peripheral surface of the bobbin inner tubular portion, and the vertical portion is conductively connected to the inner circumferential housing surface.
Axial-Air-Gap Motor and Bobbin for Motor
An axial-air-gap motor integrally configured by resin molding, a plurality of stator cores being arranged in an annular configuration, wherein the resin is spread in an efficient manner. An axial-air-gap motor, provided with: a plurality of stator cores, a stator, and one or more rotors. The stator cores are provided with a teeth iron core having the shape of an approximate trapezoidal cylinder, a bobbin covering at least the vicinity of both end parts of the outer periphery of the teeth iron core, flange parts provided in the vicinity of the portions of the bobbin that cover the both end parts of the outer periphery of the teeth iron core so as to extend for a predetermined length in a direction perpendicular to the outer periphery of the teeth iron core, and at least one protrusion further extending from the tip of the flange part in the direction of extension. The extension-direction tip of each of the protrusions is brought into contact, in the direction of rotation of an output shaft, with the extension-direction end part of the flange part of another stator core, the stator cores being arranged in an annular shape about the axial direction of the output shaft. The stator cores are integrally molded using a resin to form the stator. The one or more rotors are in a planar-faced configuration with the side surfaces of the end part of the teeth iron core, interposed by a predetermined air gap.
LINEAR MOTOR HEAT DISSIPATION STRUCTURE
A linear motor heat dissipation structure including multiple teeth arranged linearly at predetermined intervals each with coil wound around rectangular tube-shaped bobbin, and heat dissipation member provided between adjacent coils that dissipates heat generated coils by transmitting the heat to an external section. Heat dissipation member is sandwiched by bowed sections of coils that are curved outwards within edges of rectangular tube-shaped bobbin due to elastic force of coils. Accordingly, even when there are component tolerances and assembly tolerances, those tolerances are absorbed by the elastic deformation of the bowed section of coils such that the variance in the contact state between coil and heat dissipation member is made smaller so that stable and high heat dissipation performance is achieved.
HOUSEHOLD APPLIANCE ELECTRIC MOTOR TERMINAL DIRECT SOCKET CONNECTION STRUCTURE
The present invention relates to an electrical household appliance comprising an electric motor with a stator having a core around which a coil is wrapped to be connected to a motor power socket by an electrical connection terminal. An electric motor is disclosed, the electric motor comprising a stator which contains a core wrapped with a coil therearound, an electrical connection terminal into which a mag mate terminal having at least one slit is inserted to be electrically connected to the coil through insertion of the coil into the slit.
WIRING TERMINAL AND MOTOR COMPRISING THE SAME
A wiring terminal and a motor including the wiring terminal are provided. The wiring terminal includes: a mounting subassembly adapted to embed in a slot of an end insulator of a motor, a connection subassembly configured to support a wire stock having a lead wire, and a winding subassembly configure to receive an enameled wire wound on the winding subassembly. The connection subassembly and the winding subassembly are disposed on the top surface of the mounting subassembly. The lead wire of the wire stock is electrically connected to the enameled wire wound on the winding subassembly.
Winding technique for minimizing voltage stress in a motor
A method may involve winding a stator of a motor having m phases, wherein the stator includes n teeth. The method may include winding a wire around a first tooth of the stator and winding the wire around a second tooth of the stator, wherein the second tooth is
teeth from the first tooth. The method may also include winding the wire around a third tooth of the stator, wherein the third tooth is
teeth from the second tooth. The method may also include winding the wire around a fourth tooth of the stator, wherein the fourth tooth is
teeth from the third tooth. The method may also include winding the wire around a fifth tooth of the stator, wherein the fifth tooth is
teeth from the fourth tooth.
WINDING FRAME STRUCTURE FOR MOTORS
A winding frame structure for an automation winding machine to conveniently produce the windings of a motor includes two barrier plates, four ceramic heat conductive structures with high heat conductivity, and special-structured grooves. The ceramic heat conductive structures can significantly enlarge the heat dissipation area of the windings.
The heat generated by the windings can be swiftly transmitted firstly to the ceramic heat conductive structures, then to the stator inside a space formed by assembling the four ceramic heat conductive structures, and finally to a motor casing. An air-cooling or water-cooling apparatus is introduced to swiftly dissipate the heat at the motor casing. Provided by the winding frame structure, the temperature difference between the inside and the outside of the winding frame structure can be reduced, the heat dissipation process can be more efficiently, and the winding arrangement of the windings for motors can be conveniently performed.
SYSTEM AND APPARATUS FOR SEGMENTED AXIAL FIELD ROTARY ENERGY DEVICE
An axial field rotary energy device can include a rotor comprising an axis of rotation and a magnet. In addition, a stator can be coaxial with the rotor. The stator can include a plurality of stator segments that are coupled together about the axis. Each stator segment can include a printed circuit board (PCB) having a PCB layer comprising a coil. Each stator segment also can include only one electrical phase. The stator itself can include one or more electrical phases.