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Patent Searching and Data


Matches 451 - 500 out of 15,921

Document Document Title
WO/2010/054365A2
Magnetic induction power generation systems in high temperature rotating systems are disclosed. In an embodiment, the subject power generation system can provide power to embedded sensors in gas turbines or other high temperature rotatin...  
WO/2010/046196A2
The invention relates to a rotating electric machine (10) comprising a stator (20) having a plurality of poles (28), and a rotor (30) having a plurality of poles (32, 38), wherein at least either a first pole (28) of the stator (20) has ...  
WO/2010/047194A1
Disclosed is a rotating electric machine (1) comprising a stator (10) having three-phase coils (3U, 3V and 3W) arranged on a stator core (2), and a rotor (6) arranged rotatably on the inner circumference side of the stator (10). In the ...  
WO/2010/035547A1
According to an aspect of the present invention, there is provided a power tool including: a brushless motor; switching elements that drive the brushless motor; a circuit board on which the switching elements are mounted; a transmission ...  
WO/2010/026008A1
The invention relates to a method for positional recognition of a rotor (4) of an electronically commutated electric machine (2), in particular an electric motor (3), in which a zero crossover (38) of a voltage induced in a coil section ...  
WO/2010/023038A2
The invention relates to an electric machine, in particular to a generator for supplying the electrical system of a motor vehicle, comprising a laminated rotor (20) with an energiser winding (29), which provides the energisation for the ...  
WO/2010/022657A1
A method for measuring a rotor angular position of a permanent-magnet synchronous motor and a position sensor. The position sensor includes a hardware circuit, a probe coil (102) and a signal plate (3). The hardware circuit generates a h...  
WO/2009/140419A3
Disclosed is an electric motor that includes a stator with a plurality of main poles, each of which includes a coil, and a rotor rotatable about an axis and having a magnet with magnetic poles in which N and S poles are alternating. The ...  
WO/2010/006519A1
An assembling structure of a Hall device in a brushless DC motor comprises a circuit board (1), a Hall (3) which is welded to the circuit board (1) by a Hall pin (2), and a coil bobbin (5) fixed to a stator plate (4). Mounting holes (12,...  
WO/2010/003851A1
The method is used to control a brushless electric motor (12) in positioning drives (28). A sensor system (26) determines the actual position of the rotor, and in correspondence thereto a control system (18) switches in the individual mo...  
WO/2009/153839A1
First to fourth magnetic detection units (22-25) are arranged in opposition to a multipole magnetizing surface (21a) of a multipole magnet (21) of a magnetic encoder (17). The first and second magnetic detection units (22, 23) are placed...  
WO/2009/150772A1
Positioning pins (28, 29) for positioning a circuit board (22) are arranged on a case (21) of a circuit body (2), and receiving holes (35, 36) for receiving the positioning pins (28, 29) are formed in a frame body (4) on the stator side ...  
WO/2009/143855A1
The inventive self-controlled electrical machine with salient-pole rotor and stator is claimed. The stator comprises field poles enclosed by the exciting coil and the poles of an AC winding which are enclosed by an AC coil. The field pol...  
WO/2009/140419A2
Disclosed is an electric motor that includes a stator with a plurality of main poles, each of which includes a coil, and a rotor rotatable about an axis and having a magnet with magnetic poles in which N and S poles are alternating. The ...  
WO/2009/125527A1
In a brushless motor position detection device, the offset is adjusted such that the difference between the maximum value of a magnetic flux density at the mounting position of a set of first Hall elements (magnetic pole position detecti...  
WO/2009/090662A3
A BLDC motor (2) driven ceiling fan (1) comprising a control unit comprising an electronic controller (28) comprising a printed circuit board (PCB) incorporating a passive power factor correction (PFC) circuit. The PCB is disposed within...  
WO/2009/125479A1
A magnetic pole position detector which is capable of acquiring a magnetic pole position properly even when two magnetic sensors are arranged at an arbitrary spacing interval, wherein each sensor output of two magnetic sensors arranged a...  
WO/2009/121444A1
The invention relates to an electronically commutated claw pole motor having a permanent magnetic rotor having n rotor poles, and a claw pole stator having two claw pole elements mechanically connected to each other and n claw poles. The...  
WO/2009/113311A1
Provided is an electric motor comprising: a stator including a stator core (11) with a coil wound therearound; a rotor including a rotating body (30) holding a plurality of permanent magnets (32) around the periphery thereof and opposite...  
WO/2009/108093A1
The present invention relates to an electric saw (1) being powered by an external power supply (200) through a multicore cable (6). The multicore cable (6) includes electrical wires (24, 25, 27) for supplying power to the motors (5, 12, ...  
WO/2009/107787A1
Disclosed is a brushless motor in which positioning of an air core coil is performed by fitting the air core portion of the air core coil into a boss formed in a coil plate, whereby the work for assembling of the coil can be quickly atta...  
WO/2009/098382A1
The invention relates to an electrical connector assembly for a brushless electromagnetic motor, comprising a 3-phase electrical stator winding and X windings per phase, connected in series or in parallel, characterised in comprising a c...  
WO/2009/099004A1
Provided is a brushless motor of a 2P3Sxn constitution, in which the ratio (W) of a circumferential width (Wm) of magnets (16a to 16c) to a chord length (Wp) formed by an arc of a center angle (θp = 360 degrees/pole-number (3n)) in the ...  
WO/2009/077456A3
The present invention relates to a miniature electric motor, particularly a servomotor, made of a stationary part (1) (stator) and a rotating part (2) (rotor) interacting with the same. Said parts (1, 2) comprise a motor coil (5) and a p...  
WO/2009/030350A3
Disclosed is an electric motor comprising an angle sensor. The rotor shaft of the electric motor is mounted by means of at least two bearings, a first one of which is designed as a fixed bearing. A radially oriented permanent magnet is p...  
WO/2009/095949A1
Provided are a magnetic levitation motor which generates strong magnetic shaft bearing force with a simple structure, suppresses the generation of an eddy current, and thereby reduces the rotation loss of a rotor, and allows the rotor to...  
WO/2009/089935A1
The invention relates to a stator (10) of an electronically commutated rotor motor (12) having a number of magnetic poles (13) separated by slots (14) and one pole branch (15) each and having at least two winding coils (17) disposed ther...  
WO/2009/090662A2
A BLDC motor (2) driven ceiling fan (1) comprising a control unit comprising an electronic controller (28) comprising a printed circuit board (PCB) incorporating a passive power factor correction (PFC) circuit. The PCB is disposed within...  
WO/2009/081033A2
The invention relates to a rotary electric machine (10) that comprises: a fixed casing (36); a central shaft (12) rotatingly mounted about the axis (B) thereof in the fixed casing (32); a rotor (14) mounted on and connected to the centra...  
WO/2009/081047A2
The invention relates to a target-carrier assembly (22) mounted on a rotary electric machine that comprises: a rotor rotatingly mounted in a casing; a fan (50) rotatingly connected to the rotor; the annular target-carrier (22) that is se...  
WO/2009/077687A2
The invention relates to a method for controlling a self-piloted alternator-starter for starting or restarting the thermal engine of an automobile, wherein said alternator-starter includes a rotor rotating in a stator, and a belt for tra...  
WO/2009/077414A1
The invention relates to a method for redundant analysis of Hall-sensors in position determination of electric motors, by means of a microcontroller, wherein, in a first step an analogue signal is generated from the Hall sensor signals a...  
WO/2009/034270A3
The invention relates to a gear motor including a multiple-phase electric motor formed by a stator portion excited by electric coils and by a rotor having N pairs of poles radially magnetised in alternating directions, the stator portion...  
WO/2009/068079A1
Electronically commutated electric motor (1), having a rotor (5) which is fitted with permanent magnets, and a stator (3) which has windings (2) to which power can be supplied and which is constructed as a composite printed circuit board...  
WO/2009/063617A1
A motor comprising a stator having a plurality of magnetic poles disposed along its outer periphery in a circumferential direction, a rotor which is rotatably disposed around the outer periphery of the stator, and a magnet disposed along...  
WO/2009/000578A3
The invention relates to an electric machine (1), in particular a synchronous machine, comprising a stator arrangement (3) having twelve stator teeth (2) and a rotor (6) having ten rotor poles (4). Said rotor poles (4) are separated by a...  
WO/2009/055956A1
A square-wave three-phase brushless permanent magnet DC motor. The number of the magnetic poles on the iron core of the rotor (1) of the motor is: 2P=8. The number of the slots (21) in the iron core of the stator (2) of the motor is: Z=1...  
WO/2009/055957A1
A disc-type three phases brushless permanent magnet DC motor (10) comprises a coreless disc-type stator (1) and two disc-type rotors (2, 3). Multiple pairs of permanent magnets are located on the two disc-type rotors (2, 3), and the magn...  
WO/2009/047895A1
A motor is provided with a stator whereupon a plurality of magnetic poles are arranged at first prescribed intervals on the outer circumference section, and a rotor which is rotatively arranged on the outer circumference of the stator by...  
WO/2009/043705A1
The invention relates to a method and a device for balancing production related inaccuracies of the magnetic wheel of an electromotive drive of a vehicle. Correction factors are used in this method, the initial value of which is factory ...  
WO/2009/034270A2
The invention relates to a gear motor including a multiple-phase electric motor formed by a stator portion excited by electric coils and by a rotor having N pairs of poles radially magnetised in alternating directions, the stator portion...  
WO/2009/034829A1
It is possible to provide a velocity detection method which can detect a highly-accurate and low-ripple velocity in a high-velocity region and can calculate a velocity without degrading the control performance even when a plenty of noise...  
WO/2008/122437A3
The invention relates to a converter for converting magnetic energy to kinetic energy and/or electric energy. Said converter consists of at least two components, one component being stationary relative to the surroundings and the other c...  
WO/2009/030350A2
Disclosed is an electric motor comprising an angle sensor. The rotor shaft of the electric motor is mounted by means of at least two bearings, a first one of which is designed as a fixed bearing. A radially oriented permanent magnet is p...  
WO/2008/095595A3
Disclosed are a method and a system for determining the position of a first part of an electric motor relative to a second part thereof. The magnetic field strength generated or at least influenced by magnets of the second motor part is ...  
WO/2009/027504A1
The present invention relates to a miniature electric motor, in particular a servo motor, comprising a fixed part (1a) and a rotating part (2a) arranged therein. Said parts (1a, 2a) have an electric coil (5) and a permanent magnet (3), i...  
WO/2009/004199A3
The shaft supporting system for an electric motor (1) comprises an instrumented rolling bearing (31) provided with a rotating race (34) intended to be mounted on said shaft and with a non-rotating race (33), a unit (32) for detecting rot...  
WO/2009/015496A1
An electric motor contains a rotor position sensor with a magnetic field sensor (10), a rotor arrangement (2, 3) arranged coaxially with respect to a stator arrangement (1, 4, 5). The rotor arrangement has a rotor (2), wherein permanent ...  
WO/2008/116612A3
A fan motor comprises a stator (20), a rotor (10') having a rotor shaft (14), and support means (25, 26, 29) for supporting the rotor (10'). The support means (25, 26, 29) comprise magnet means (26) for exerting a magnetic force on the r...  
WO/2009/004199A2
The shaft supporting system for an electric motor (1) comprises an instrumented rolling bearing (31) provided with a rotating race (34) intended to be mounted on said shaft and with a non-rotating race (33), a unit (32) for detecting rot...  

Matches 451 - 500 out of 15,921