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US20140086766 |
Electrically Driven Motor and Electrically Driven Pump
In an electrically driven motor and an electrically driven pump using the electrically driven motor which can reduce a cogging torque in a simple structure not using a magnetized skew, the... |
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US20080265702 |
Permanent magnetic brushless motor with length adjustable air gap based on load
A permanent magnetic brushless motor with a length adjustable air gap comprises: a body; a stator secured to one end of the body; a spindle pivotally installed to the body; a part of the spindle... |
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US20050121996 |
Electric drive for a radial impeller
An electric drive for a radial impeller comprises a magnetized rotor and at least one flat stator. The magnetized rotor comprises magnetic means rigidly fixed with the radial impeller. The flat... |
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US20140076668 |
ELECTRIC MOTOR, HOISTING MACHINE AND ELEVATOR SYSTEM
An electric motor, a hoisting machine and also an elevator system are disclosed. The electric motor includes a stator, which stator includes slots, into which slots a concentrated winding is... |
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US20110116943 |
STATOR STRUCTURE, AND MOTOR AND FAN ASSEMBLY USING SAME
A fan assembly includes a stator and a rotor. The stator is located in a fan frame and includes a base, at least one magnetizing winding provided on the base at a first relative position relative... |
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US20070194649 |
Electric camshaft adjuster comprising a pancake motor
An electric camshaft adjuster for adjusting and fixing the phase angle of a camshaft of an internal combustion engine relative to a crankshaft thereof is provided. The camshaft adjuster is... |
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US20090127959 |
ELECTRICAL DIRECT DRIVE FOR A ROLLER
An electrical roller drive which can be connected to a roller includes a disk-type motor with a secondary part in the form of a disk and with a primary part in the form of a disk. |
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US20060273676 |
Axial gap motor
An axial gap motor may benefit from a reduction of axial force on the rotor, which may reduce load on the rotor and bearings and reduce the vibration on the surface of the rotor. An air gap is... |
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US20080157618 |
Axial induction motor structure
An axial induction motor structure including a case, a rotor, and a stator is provided. The rotor is pivoted on the case by a shaft and includes a ring-magnetic section. The ring-magnetic section... |
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US20090072649 |
BRUSHLESS ELECTRIC MOTOR
The invention relates to a brushless electric motor, comprising a stator and an armature with armature teeth and permanent magnets in accumulative order, the armature being made from a laminated... |
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US20080203848 |
Electrical Motor/Generator Having A Number Of Stator Pole Cores Being Larger Than A Number Of Rotor Pole Shoes
The present invention relates to an electrical multipole motor/generator or electrical machine with axial magnetic flux, wherein the machine has a number of stator pole cores being larger than the... |
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US20120286613 |
ASYMMETRIC STATOR TEETH IN AN ELECTRIC MOTOR
A permanent magnet motor includes a permanent magnet rotor, a stator surrounding the rotor having a plurality of teeth radially inwardly oriented toward a longitudinal axis of the stator wherein... |
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US20070138904 |
Flat-type single phase brushless DC motor
A flat-type single phase brushless direct current (BLDC) motor includes a rotor rotatably fixed to a shaft and having a permanent magnet attached to a lower side thereof; a stator plate installed... |
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US20130154449 |
Disk-shaped multi-combined three-dimensional permanent magnet motor
A disk-shaped multi combined three-dimensional permanent magnet motor is provided. Two independent disk-shaped stators are respectively provided on a left side and a right side in a shell. A... |
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US20120126653 |
AXIAL-FLUX THIN-PLATE MOTOR
An axial-flux thin-plate motor is disclosed, which includes: a stator formed of an annular disk of silicon steel and comprising a plurality of teeth formed on one side of the annular disk, a... |
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US20080278019 |
Magnetic Force Rotation Device
A magnetic force rotation device includes a rotor and a stator. The rotor is provided with a plurality of magnetic assemblies containing permanent magnet. The plurality of magnetic assemblies are... |
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US20090251112 |
Permanent magnet electric generator with variable magnet flux excitation
A permanent magnet (PM) electric generator with directly controllable field excitation control comprises: a drive shaft; a PM rotor assembly with multiple PMs arranged around an outer axial... |
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US20140077666 |
AXIAL GAP TYPE ELECTRIC ROTATING MACHINE, ELECTRIC WHEELCHAIR AND ELECTRIC BICYCLE
An axial gap type electric rotating machine is disclosed. The rotating machine includes a rotor arranged to rotate about an axis of rotation, and a stator arranged so as to face the rotor with a... |
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US20150263572 |
OPTIMIZED ELECTRIC MOTOR WITH NARROW TEETH
The present disclosure relates to a mono- or polyphase electric motor including a stator carrying at least three coils and consisting of 12×N straight teeth extending radially, N being an integer... |
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US20080252164 |
Variable speed motor
Shift gears of a variable speed motor is no longer needed for a set of gears, but multiple layers disks with magnets fit over an axle rotated by a multiple layers annular opening of a housing,... |
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US20140265700 |
PERMANENT MAGNET ELECTRICAL MACHINES AND METHODS OF ASSEMBLING THE SAME
An electric machine comprising a permanent magnet rotor assembly is provided. The electric machine comprises a permanent magnet rotor assembly comprising a plurality of permanent magnets coupled... |
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US20150244213 |
THIN AXIAL GAP MOTOR
A thin axial gap motor includes: a base, a circuit unit installed on the base; a stator module including at least one flat permeable frame and at least one winding, and the permeable frame having... |
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US20110037335 |
AXIAL MOTOR
The present invention relates to an axial motor, and more specifically, to an axial motor which has a simple structure and is easily assembled by inserting and holding core teeth in core teeth... |
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US20110241468 |
ROTARY ELECTRIC MACHINE
A rotary electric machine configured with a stator, rotor, and permanent magnets disposed in an inverted V-shape that becomes gradually narrower from a side of a center of rotation of the rotor.... |
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US20110110800 |
FAN AND THREE-PHASE MOTOR THEREOF
A three-phase motor includes a bearing structure, a rotor structure and a stator structure. The bearing structure has a bushing. The rotor structure has a shaft disposed in the bushing. The stator... |
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US20080061649 |
Axial gap motor and method for manufacturing the same
Disclosed is an axial gap motor in which a stator and a rotor are arranged parallel to a rotating shaft. More particularly, an axial gap motor, which can be easily manufactured and achieve an... |
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US20120153762 |
SYNCHRONOUS MOTOR WITH PERMANENT MAGNETS
The invention relates to a synchronous motor with permanent magnets comprising a rotor (110) provided with permanent magnets a winding (120) formed by overlapping coils located inside a slotless... |
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US20130009508 |
AXIAL GAP TYPE BRUSHLESS MOTOR
Disclosed is a brushless motor (1A) which is an axial gap type brushless motor (1A) wherein stators (3A, 4A) comprising a coil (41) and a rotor (2) comprising a permanent magnet (23) are arranged... |
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US20070290582 |
AXIAL AIR-GAP TYPE MOTOR
An axial air-gap type motor includes a rotor having a magnet, a stator, having an accommodating space therein, separated from the magnet in an axial direction of the motor by an air gap, and a... |
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US20060028093 |
Axial-gap dynamo-electric machine
A stator for use in an axial-gap dynamo-electric machine. The stator core may be fabricated from a plurality of stator core elements each of which may be arranged to form teeth portions on a rotor... |
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US20100033051 |
ROTOR AND PERMANENT-MAGNET ROTATING ELECTRICAL MACHINE
A permanent-magnet rotating electrical machine includes a stator with an armature coil and a rotor arranged to rotate with a predetermined air gap with respect to the stator. The rotor includes a... |
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US20130147302 |
ROTOR BARRIER SHAPING FOR DEMAGNETIZATION MITIGATION IN AN INTERNAL PERMANENT MAGNET MACHINE
A rotor core for an Internal Permanent Magnet (IPM) machine includes a cavity having a magnet disposed therein. The cavity defines an air slot adjacent a radially outermost edge of the magnet... |
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US20080238226 |
STATOR AND GAP WINDING MOTOR USING THE SAME
A so-called gap winding motor capable of preventing a rotation detector from being affected by noise generated by a stator coil connection portion and decreasing the size and cost is provided. The... |
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US20080315699 |
PM stepping motor
A PM stepping motor includes: a stator assembly composed of two stator units which are axially coupled to each other with a molding resin material, and each of which includes: inner and outer... |
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US20110133596 |
Rotor, Axial Gap Type Motor, Method of Driving Motor, and Compressor
A technique of employing a rotor having anti-saliency and being rotatable about a predetermined axis in an axial gap type motor is provided. A plurality of magnets are disposed annularly on a... |
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US20150262610 |
SPINDLE MOTOR FOR HARD DISK DRIVE AND METHOD OF FABRICATION THEREOF
A spindle motor for a hard disk drive includes a base and a bearing assembly coupled to the base. The bearing assembly includes a sleeve configured to rotatably support a shaft therein. A rotor... |
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US20140265678 |
ENERGY CONVERTING DEVICE HAVING AN ECCENTRIC ROTOR
An energy converting device having an eccentric rotor includes a fixed portion and an eccentric rotor. This fixed portion has a central axis, an outer frame, and several fixed coil portions. The... |
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US20090230695 |
General purpose engine
A general purpose engine is provided with an engine main body, a rotary shaft, and an axial gap type motor/generator. The rotary shaft is rotated by a driving force of the engine main body. The... |
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US20130201812 |
SPINDLE MOTOR AND DISK DRIVE APPARATUS
A spindle motor includes a flat stator, a rotor magnet arranged above the stator, and a magnetic portion made of a ferromagnetic material. The magnetic portion is positioned lower than the stator... |
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US20140042859 |
Axial Gap Rotating Electrical Machine
An axial-gap rotating electrical machine in which the distance of the air gap between a rotor and a stator can be accurately controlled is provided. A large diameter portion and a small diameter... |
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US20140062246 |
ROTOR MAGNET POSITIONING DEVICE
A device for positioning a planar array of magnets within a permanent magnet electrical machine of the type having a rotor and stator with an air gap there between. The device includes a body made... |
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US20140175931 |
AXIAL FLUX PERMANENT MAGNET MOTOR
An axial flux permanent magnet motor includes a shaft, a rotor extending from the shaft in a radial direction, the rotor being rotatably mounted on the shaft, a magnet part disposed on the rotor... |
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US20090072639 |
Segmented composite rotor
A composite rotor for an axial airgap, permanent magnet dynamoelectric machine comprises a plurality of magnet subassemblies adhesively bonded together to form the rotor. Each magnet subassembly... |
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US20080100174 |
Motor having stator with generally planar windings
An electric motor features liquid cooling capability. A rotor and a secondary rotor are coupled to a shaft for rotation therewith. The rotor comprises a first annular member and magnets secured to... |
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US20130134818 |
THREE-PHASE AXIAL FLUX MOTOR AND MAGNETIC PATH ADJUSTING METHOD THEREOF
A three-phase axial flux motor is disclosed. The axial flux motor includes a stator, a rotor and a driving unit. The stator includes three coils. The rotor is pivotally disposed on the stator and... |
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US20130285483 |
AXIAL FLUX PERMANENT MAGNET MOTOR
Disclosed herein is an axial flux permanent magnet (AFPM) motor including: a stator including a stator core, a magnet wire wound around the stator core, a shaft, and a stator core supporting... |
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US20100143164 |
FAN MOTOR STRUCTURE
A fan motor structure is provided. A fan is disposed within an accommodating hole at a center of a body. A permanent magnet and a printed circuit board (PCB) provided with plural coils are... |
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US20070024143 |
Roatary electric machine with permanent-magnet rotor
The machine (1) comprises: a rotor (2) with a permanent magnet (5), for producing an annular distribution of magnetic polarities (N, S) of angularly alternating sign about the axis of rotation... |
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US20060091743 |
Compact and efficiently cooled fan motor
A rotor magnet 10 and a stator opposing each other are accommodated in a cylindrical fan boss. Groove-like radial ventilation paths are formed on the rotor magnet and fan boss holes are formed in... |
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US20070080598 |
Electric rotary machine
In an electric rotary machine of an axial gap type, at least one rotor including a rotor coreis provided, at least one stator is provided the at least one stator facing one surface of the at least... |