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WO/2008/148398A1 |
The invention relates to a valve-type electric machine comprising a salient-pole rotor provided with the even number of poles and an excitation system consisting of two permanent magnets which are arranged at an angle to each other, the ...
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WO/2008/145487A1 |
The invention relates to a rotor of an electrical machine, having a rotor body (1) and a pulse transmitter structure (8), which is associated with the rotor body (1) for detection of the rotation position and/or the rotation speed of the...
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WO/2008/146502A1 |
In a brushless motor comprising an external stator constituted by electrically forming a magnetic circuit by winding wire on a core, a bus bar forming an external input terminal by tying the wound wire together, and an internal rotor int...
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WO/2008/139835A1 |
A power steering device (10) having a gear box (61) and an electric motor (13) that are assembled together. A resolver fixation base (50) for holding a resolver (51) is fixed by a screw (52) to the electric motor (13) from the side where...
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WO/2008/141075A1 |
A BLDC electric motor assembly (24) includes a rotor (42) having a plurality of magnet segments (50) securely retained thereabout by an annular ring (68) which is shrunk in situ in an electromagnetic forming operation. The magnet segment...
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WO/2008/122437A2 |
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...
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WO/2008/116612A2 |
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...
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WO/2008/114473A1 |
An n-phase (n is a positive integer) brushless motor device comprising a stator (14), a rotor (12) having a predetermined number of poles, a magnetic pole position detection magnet (16), which is firmly bonded to a surface orthogonally i...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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 ...
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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 ...
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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...
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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...
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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...
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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...
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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 ...
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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)...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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, ...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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