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Patent Searching and Data


Matches 551 - 600 out of 16,015

Document Document Title
WO/2008/077363A3
An electric motor (1), particularly a direct current motor, having an armature (4) comprising a plurality of groove slots (14) for receiving current-carrying conductors of an armature winding (16), is to enable a particularly low detent ...  
WO/2008/111242A1
To provide a small-sized brushless motor in which the rise of the temperature of a power element is suppressed. A stator (2) is disposed on the same axis as the output shaft (1a) of a rotor (1). A first wiring board (3a), on which a powe...  
WO/2008/111875A1
This invention relates to electrical machines, in particular, to DC motors, and can be used for current winding control. Non-contact switching system for DC motors, which includes a set of solid-body switches to ensure a bi-directional s...  
WO/2008/102629A1
A permanent magnet type brushless DC motor which can be made compact while enhancing noise resistance of a rotation detector fixed to the motor and exhibiting excellent productivity, reliability and cost performance. The permanent magnet...  
WO/2008/098445A1
A non-360 degree driving brushless motor comprises a motor rotor mounted with permanent magnets, a motor stator winded with coils and a reducer connected axially to the motor rotor. The output torsion of the motor is changed by separatel...  
WO/2008/099552A1
A motor (5) comprises a stator (5a), a rotor, and a rotating position detection part (26) for detecting the rotating position of the rotor. A first positioning part (41) and a second positioning part (42) formed on the stator (5a) are fi...  
WO/2008/095595A2
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/2008/092801A2
The invention relates to a synchronous motor (3) comprising a stator (3) with 18 stator teeth (2). The stator comprises stator coils (7) surrounding the stator teeth (2). The rotor (5) has eight pole magnets (6), each stator coil (7) sur...  
WO/2008/035105A3
A motor (1) comprises a stator (2), a rotor (10) mounted for rotation about a rotor axis (50) in the stator (2), a pole (11) of the stator (2), a winding on the stator pole (11), and at least one pair of salient poles (10a-d) of the roto...  
WO/2008/087757A1
A motor for driving an actuator used for the throttle valve of the engine of an automobile and the optical axis controller for the headlight of an automobile. Two cup-like rotor yokes, each of which is provided with an enlarged inner dia...  
WO/2008/087068A1
The invention relates to an electrical machine, in particular an EC synchronous motor with permant excitation in the armature (20), and multiphase winding (18) in a claw pole system (19) of the stator (16), and three connections for a th...  
WO/2008/086964A1
The invention relates to a brushless electric motor having a rotor module (11), a stator module (12), and a plurality of coils (13), wherein the stator module is provided to be at least partially produced by means of MID (molded intercon...  
WO/2006/032639A3
The aim of the invention is to reduce ripple forces in a magnetic levitation transport system to the greatest extent. In one solution, grooves extending transversally to the longitudinal direction are diagonally oriented in a magnet bloc...  
WO/2008/081685A1
Provided is a compact direct drive motor while avoiding atmosphere contamination. A direct drive motor DD includes a stator (29), an atmosphere bearing (33), an internal rotor (30), and resolvers (34a, 34b, 35, 36) as detectors which are...  
WO/2008/081684A1
It is possible to provide a brushless motor which can fasten a permanent magnet by using a fixing ring-shaped member (24) without using an adhesive which generates an out gas so as to prevent atmosphere contamination caused by fixing of ...  
WO/2008/079144A1
Linear motor with armature teeth (110b). Each end tooth (110c,110d) is provided with a step (11Oi) which increases the air gap. Advantage: Reduce cogging. The tooth surface (11Og) at the increased air gap may have an angle (A) different ...  
WO/2008/077363A2
An electric motor (1), particularly a direct current motor, having an armature (4) comprising a plurality of groove slots (14) for receiving current-carrying conductors of an armature winding (16), is to enable a particularly low detent ...  
WO/2008/069166A1
A brushless DC motor includes: a stator having a stator core, a drive coil wound on the stator core, a circuit substrate on which a plurality of electronic parts are mounted, and a mold resin unit which molds them as a unitary block; and...  
WO/2008/067861A1
The invention relates to a single-phase permanent magnet synchronous machine (1), in particular for driving a wet-rotor pump, comprising at least one stator winding (3), a laminated stator stack (2) with two pole limbs (4) and a permanen...  
WO/2008/066061A1
A brushless motor comprises a rotor including ten permanent magnets, and a stator including twelve teeth (or salient poles) having twelve wires individually wound thereon. Here, the twelve wires include such two wire groups for each phas...  
WO/2008/065972A1
A board-mounted brushless motor in which the reliability of connection between a ground pattern and an electrically conductive metal plate is improved by a simple structure. A portion of the ground pattern (19) is hollowed to form a holl...  
WO/2008/046983A3
The invention relates to a powering device (1) including a housing (2) in which is attached a stator (3) that surrounds a rotor (4) connected to a shaft (5) and having a first end portion (5.1) and a second end portion (5.2) connected to...  
WO/2008/059736A1
A brushless motor (1) is provided with a magnet holding section (52) for holding/fixing a magnet, and a magnet holder (51) having a resolver rotor connecting section (54) connected to a resolver rotor (35). The resolver rotor connecting ...  
WO/2008/053670A1
A brushless motor having excellent anti-impact properties and easily assembled even if it is reduced in size. The brushless motor has a stator (2) as a non-rotating portion fixed to a stator base (1), and the stator (2) has a bearing (5)...  
WO/2008/050637A1
A brushless motor (3) is provided with a rotor (22) having a magnet (33), and a stator (21) having teeth (27) facing the magnet (33) through an air gap (45). At the leading ends of the teeth (27), a plurality of auxiliary grooves (20) wh...  
WO/2008/050418A1
A rotation support device where play in a bearing is eliminated without the use of a spring member. Lines of magnetic force flows from a permanent magnet (30a) to a permanent magnet (21a), generating electromagnetic attraction force (urg...  
WO/2008/050575A1
An inexpensive, productivity-enhanced single-phase AC synchronous motor in which stabilized synchronous pull-in can be carried out by suppressing generation of counter torque during a starting operation. Starting operation is performed w...  
WO/2008/046983A2
The invention relates to a powering device (1) including a housing (2) in which is attached a stator (3) that surrounds a rotor (4) connected to a shaft (5) and having a first end portion (5.1) and a second end portion (5.2) connected to...  
WO/2008/047698A1
In a brushless motor having a stator provided with armature windings of a plurality of phases, and a rotor provided with permanent magnets and arranged rotatably on the inside or outside of the stator, the voltage waveform induced betwee...  
WO/2008/043620A1
The invention relates to an electric machine (3) having a rotor (2) or stator and magnets, wherein the rotor (2) or stator comprises a plurality of grooves (6). A pole (7) is formed between said grooves - viewed in the circumferential di...  
WO/2008/023779A3
The single-phase brushless motor according to one aspect of the present invention includes a coil array having a plurality of magnetic coils 11 -14; a magnet array having a plurality of permanent magnets 31 -34; a magnetic sensor 40 for ...  
WO/2008/009552A3
The invention relates to a rotor (23) for an electrical machine (1), comprising a rotor shaft (4), rotor laminations (5), and a rotor brake body (6). The rotor laminations (5) and the rotor brake body (6) are fixed to the rotor shaft in ...  
WO/2008/035755A1
A resolver stator (33) is contained in a bottomed cylindrical resolver holder (34). The resolver holder (34) is made of a magnetic material and includes a cylindrical holder part (61) and a bottom wall part (63) which is formed at the en...  
WO/2008/035919A1
The present invention relates to a switched reluctance motor and a connection method for a sensor shutter thereof. The switched reluctance motor in accordance with the present invention includes a stator; a rotor rotating with respect to...  
WO/2008/035754A1
A resolver stator (33) is contained in a resolver holder (34). The resolver holder (34) includes a cylindrical holder part (61). The resolver stator (33) is coaxially contained in the holder part (61). A holder mounting rib (39) formed c...  
WO/2008/035876A1
The present invention relates to a switched reluctance motor which includes a housing, a stator and a rotor received and installed within the housing, and a rotor position detecting unit that detects a rotational position of the rotor at...  
WO/2008/031726A1
In a permanent-magnet synchronous machine (1) with a stator (2), which has a stator winding (U, V, W) and surrounds a rotor (4) with a rotor surface (4b), which is spaced radially apart from a rotor axis (4a), so as to form an air gap (3...  
WO/2008/029624A1
It is possible to reduce a basic wave component of cogging torque by controlling drive of a brushless DC motor (311). A secondary frequency component of the cogging torque is reduced by improving the structure of the brushless DC motor, ...  
WO/2008/023779A2
The single-phase brushless motor according to one aspect of the present invention includes a coil array having a plurality of magnetic coils 11 -14; a magnet array having a plurality of permanent magnets 31 -34; a magnetic sensor 40 for ...  
WO/2008/015157A1
The invention relates to a synchronous motor (12) with a number of stator coils (15), with a rotor (16) with at least one permanent magnet (17), which induces a rotor magnetic field in a useful flux direction and with at least one coil w...  
WO/2008/015151A1
The invention relates to a primary component (2) for an electric motor (1), wherein a) the primary component (2) is provided for arrangement with a secondary component (7), the primary component (2) and secondary component (7) are separa...  
WO/2008/015140A1
The invention relates to a primary part (2) for an electrical machine (1), with the primary part (2) being formed at least from a laminated core (3) and having at least one element (11) for reduction of the force ripple adjacent to one o...  
WO/2008/009706A1
According to the invention, the torque ripple of electrical machines is supposed to be further reduced. For this purpose, it is provided to dispose the magnetic poles, for example, on the surface of a rotor in a plurality of sections (A1...  
WO2006137498A8
An engine (10) equipped with a generator (20) is provided. The stator (24) fixed to the crankcase (12) includes a plurality of iron cores (32a to 321) arranged in the circumferential direction about the crankshaft (16), and coils (33) th...  
WO/2008/001759A1
A current control circuit controls the average current of an inverter circuit. A current indication circuit increases or decreases an average current value supplied to the inverter circuit with respect to a reference current so that a co...  
WO/2007/145033A1
A motor rotor (22) has a motor shaft (30), a permanent magnet (31) surrounding the motor shaft (30) so as to be aligned with the axis of the motor shaft, a pair of end rings (32, 32) surrounding the motor shaft (30) so as to be aligned w...  
WO/2007/144966A1
An inductor motor (1) comprises stator blocks (20), a generally cylindrical exciting coil (25), and a rotor (4) having two generally columnar magnet rotors (40) arranged coaxially with each other. The magnet rotors (40) are inserted insi...  
WO/2007/140920A1
An electric motor is provided, which is electronically commutated, comprising a stator, a magnetic-field generating rotor and a position encoder with at least one sensor, the at least one sensor having a flux guiding system assigned to i...  
WO/2007/142299A1
In a brushless motor, (i) a switching element (10), which turns on and off energization of a coil (32) arranged on a stator (3), is adhesively fixed to a bottom outer surface of a bottomed cylindrical heat dissipating housing (1). (ii) A...  
WO/2007/135006A1
The invention relates to a planar direct drive with a planar passive unit (01) with magnetizable teeth (03), both the base surface of the magnetizable teeth (03) and their interdental gaps (04) having at least in a first direction y a co...  

Matches 551 - 600 out of 16,015