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7615895 |
Outer rotor type motor for drum type washing machine and method for fabricating the same
Direct coupling type motor for drum type washing machine having a stator which can reduce material required for fabrication, and a weight after fabrication, simplify a fabrication process, and can...
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7608969 |
Stator for rotary electric machine
A stator for a rotary electric machine, including a plurality of stator cores arranged in a circumferentially spaced relation about a central axis of the stator, and a molded resin filled between...
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7608968 |
Dust core and method of manufacturing the same
A stator core includes first and second annular dust core pieces. Each of the first and second annular dust core pieces has a plurality of arcuate dust core pieces each integrally having a yoke...
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7605504 |
Fault-tolerant permanent magnet machine with reconfigurable stator core slot flux paths
A permanent magnet (PM) machine has a reconfigurable fault condition mechanism disposed solely within a stator core portion, wherein the mechanism is automatically reconfigurable to reduce fault...
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7603760 |
Method for producing a helical stator
In a method or system for producing a helical stator, a stator core strip is provided having a base portion with spaced tangs extending from the base portion. The strip is driven in a feed...
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7600312 |
Die assembly for manufacturing lamina stacks that include formed features
A progressive die assembly and method for manufacturing lamina stacks from a strip of substantially planar material, in which at least some of the individual laminas are formed with portions which...
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7598649 |
Vertical stator double gas D.C. PM motors
A vertical stator d.c. PM motor employs outer and inner working air gaps wherein the length of the inner working gap at any stator pole is greater than the corresponding length at the outer working...
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7598635 |
Dynamo electric machine
A rotor for a dynamo electric machine comprises a rotor body 12 defining a plurality of poles in the form of limbs 16 around which windings 18 are provided, and a wedge arrangement 20 ...
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7596856 |
Method for manufacturing a soft magnetic metal electromagnetic component
An electromagnetic component is formed from a pre-form comprising layers of soft magnetic metal ribbon. Adhesive is applied to permeate the pre-form and is then cured. The bonded pre-form is placed...
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7595578 |
Motor, rotary electric machine and its stator, and method for manufacturing the stator
A laminated core segment 30 into which a stator core is split has a core main body 31 that extends in an arc shape. On one end section of the core main body 31 there is formed a connecting...
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7595577 |
Brushless motor and electric power steering apparatus incorporating the same
A brushless motor includes an annular stator and a rotor which has a plurality of permanent magnets alternately arranged in circumferential direction on the rotor to form poles and which is...
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7594314 |
Method for building a device having fluidic and electrical functions
A method for building a device having fluidic and electrical functions includes the steps of: mounting a building part with fluidic and electrical functions on a substrate that is provided with a...
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7592732 |
Rotary electro-dynamic machine and armature winding thereof
Sub core sections are arranged at the end portions and the center portion of a stator core, and strand conductors are twisted and transposed by 360 degrees continuously toward the extending...
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7583003 |
Stator for motors
The present invention provides a stator for motors in which a space volume occupied by the winding wire of an excitation winding section can be increased, thereby allowing magnetic flux to readily...
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7583002 |
Insulation and alignment of segmented stators for electric machines
A stator segment for a segmented stator of an electric machine includes insulative material configured for overlapping with insulative material of an adjacent stator segment to provide continuous...
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7583001 |
Electric motor design for in hub motors
An electric motor design for hub motors comprises a stator assembly, having an axle, a stator plate sector holder, fixed on the axle, at least one stator sector assembly, mounted on the stator...
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7579739 |
Rotary electro-dynamic machine and armature winding thereof
Sub core sections are arranged at the end portions and the center portion of a stator core, and strand conductors are twisted and transposed by 360 degrees continuously toward the extending...
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7579738 |
Multi-phase electrical motor for use in a wheel
The invention relates to a rotary multi-phase electrical motor wherein stator teeth corresponding to one same phase are grouped on a distinct and magnetically isolated stator section. The number of...
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7579737 |
Armature winding of electric rotating machine, stator of electric rotating machine and electric rotating machine
An armature winding of an electric rotating machine is provided, which includes at least one armature winding bar composed of a plurality of element wire conductors, wherein the armature winding...
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7579735 |
Motor stator teeth with insulators
A motor stator in one implementation includes a plurality of teeth disposed in a radial form centered about a predetermined center axis, insulators covering the plurality of teeth, and a plurality...
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7579723 |
Power magnetic core and stator core
A power magnetic core has a start section and a termination section. In the powder magnetic core, lines of magnetic force are formed from the start section to the termination section. The powder...
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7576466 |
Electric motor with minimized cogging and related method of determining stator pole geometry
An electric motor with reduced cogging torque and related method of determining a stator pole geometry are disclosed. The electric motor includes a rotor ( 80, 91, 96 ) and a stator ( 50 A, 50 B, ...
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7569965 |
Stator for motor
A projecting portion 23 h is integrally provided at a first connecting portion 23 e of a bobbin 23. The projecting portion 23 h has a triangular cross-section taken in an orthogonal...
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7567010 |
Modular electric motor with stackable stator poles
A modular electric motor stator pole comprising a plurality of independent stator components stacked axially, each stator segment comprising a tooth tip, a back iron and a coil, the tooth tip...
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7567009 |
Stator arrangement for an electric machine and a method for manufacturing the stator arrangement
A stator arrangement for an electric machine having a stator body which has a back yoke ring and a number of stator teeth that project in a radial direction from the back yoke ring, wherein at...
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7564157 |
Interior permanent magnet synchronous machine
A rotating A.C. synchronous interior permanent magnet machine with concentrated windings is constructed such that each pole on the secondary-side (rotor) is provided with at least one interior...
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7562439 |
Apparatus for making a laminated core structure
An apparatus for manufacturing an electric motor having a laminated core structure formed by a plurality of core plates made of rolled material of electromagnetic sheet steel. The core plates are...
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7560845 |
Rotor for a switched reluctance machine
A rotor for a switched reluctance machine has its main magnetic circuit provided by two mouldings of soft magnetic composite. The mouldings are substantially identical and fit together to form a...
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7554241 |
Three-gapped motor with outer rotor and stationary shaft
A motor with three gaps produces higher torque than existing one or two gap motors. The motor uses both one radial and two axial gaps to produce torque. A single stator is provided with an...
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7554229 |
Stator structure of motor
A stator structure of a motor. The stator structure has a base including a main body and a plurality of protrusions extending from the main body. A stator part has a plurality of magnetic-pole...
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7550891 |
Permanent magnet motor having stator poles with stepped-end-surfaces and rotor with outer-circumferential-recessed surface
A permanent-magnet motor including a rotor having permanent magnets disposed therein, and a stator, wherein an outer circumferential surface of the rotor is opposite to an inner circumferential...
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7541708 |
Spindle motor
A spindle motor including a rotor hub which is rotationally driven by a magnetic action of a rotational magnetic field generated when a current is applied to a wire wound around teeth of a stator...
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7538467 |
Magnetic powder metal composite core for electrical machines
A compacted magnetic powder metal component assembly for use in an electrical machine is provided. Each component assembly has a top section and a bottom section. Each top section is comprised of...
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7535328 |
Electromagnetic switch
In an electromagnet switch, a stationary iron core is composed mainly of a base part and a disk part. The base part is faced to a plunger and the disk part is forcedly inserted and fixed to a boss...
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7535134 |
Spindle motor, and recording and reproducing apparatus equipped with the same
With a spindle motor 20 , a stator core 8 comprises a plurality of salient pole components 51 that are formed in a radial shape, are wound with a stator coil 9 , and are disposed at a uniform...
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7531936 |
Stator core with coil slot skewed relative to stator core axis
A stator includes a cylindrical stator core and a coil. The stator core is formed by stacking a plurality of core sheets. The stator core has a groove formed in an outer circumferential surface...
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7530156 |
Lamination cooling system formation method
An electric motor, transformer or inductor having a cooling system. A stack of laminations have apertures at least partially coincident with apertures of adjacent laminations. The apertures define...
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7528518 |
In-wheel motor
A front wheel is rotatably fitted to a knuckle of a suspension by means of a hub unit. While a stator bracket, which is fitted to an outer hub of the hub unit fixed to the knuckle, supports an...
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7528516 |
Rotary electrical machine having loss reduction means
In a rotary electrical machine, the stator is subject to eddy currents, causing losses. These losses are reduced by extending the path of the eddy currents whilst avoiding causing saturation. The...
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7528515 |
Small DC motor
A small DC motor includes a motor frame having a cylindrical portion, the cylindrical portion having a constant thickness and having a cross section in a shape that comprises four sides and...
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7525231 |
Stator used for recording disk driving motor, recording disk driving motor, and recording disk driving device
The wire winding height of the first teeth over which the head portion moves is lower than the wire winding height of the second teeth over which is out of the moving range of the head portion. The...
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7520148 |
Drum type washing machine
In one aspect, a drum type washing machine includes, among other things, a tub supporter of metal between a wall of a tub and a stator, where the stator includes an annular helical type core having...
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7518280 |
Method and system for selectively operating an electric motor
A method for selectively operating an electric motor in one of a first pole configuration and a second pole configuration is provided. The first pole configuration has a first phase winding...
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7518271 |
Electric machine with stator cooling teeth
An electrical machine, in particular a rotary current generator for motor vehicles, is proposed which has a housing ( 13 ) in which a stator ( 16 ) is retained, such that a coolant can flow around...
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7518270 |
Accurate microstepping motor
A stepper motor includes a rotor having equally spaced rotor teeth defining a full step angle, and a stator with stator poles wound with coils that can be driven in a series of phases so as to...
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7511401 |
Rotor of motor
A rotor of a motor includes: a stator; a rotor core of a certain shape; a winding coil wound on the rotor core; and a rotor rotated by an electromagnetic interaction with the stator, in which both...
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7511399 |
Stator assembly for an electrical machine
The present invention relates to a stator assembly for an electrical machine, including a housing and a stator, in which the housing has at least one inward-oriented bead extending in the axial...
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7511398 |
Motor and recording disk driving device
A base plate is provided with plural through holes extending vertically through the base plate, at the portions aligned with plural teeth. In the respective through holes of the base plate, the...
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7508108 |
AC motor
A brushless AC motor has a rotor, N stator pole group, and plural loop-configuration stator windings. The rotor has magnetic poles with alternating N poles and S poles circumferentially disposed at...
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7501735 |
Self-magnetized motor and stator structure thereof
A self-magnetized motor includes a stator adapted to rotate by electromagnetic interaction with a rotator, a plurality of slot teeth formed on and surrounding a through-hole of the stator, and an...
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