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Patent Searching and Data


Matches 801 - 850 out of 16,015

Document Document Title
WO/2003/069765A1
The invention relates to an electronically commutated internal rotor motor (20) which comprises an external stator (28) and a permanent magnet rotor (36) rotatably disposed therein and received on a shaft (40) that is rotatably mounted o...  
WO2002089304A3
A rotor position sensor mounting system includes a sensor assembly (14) fixedly engaged with a stator assembly (14). The stator assembly (14) includes a plurality of stator laminations (28) including a plurality of sections (104, 120) se...  
WO/2003/066262A2
A method of assembling a power tool, a power tool, a method of assembling an electrical device (100), and an electrical device (100) includes a switched reluctance motor (10). The electrical device is preferably a hand-held power tool, h...  
WO/2003/065551A1
An axial gap electric motor comprises a base (10), a shaft (14), a stator frame (12), a plurality of electromagnet units (19), bearings (11A, 11B), a rotor frame (13) spaced at a predetermined distance from the stator frame (2), a plural...  
WO/2003/065543A1
A device such as an electric motor, an electric generator, and/or a regenerative electric motor that includes a plurality of independent energizable electromagnetic assemblies. Each independent electromagnetic assembly has an associated ...  
WO/2003/065546A2
An electric motor (10) is disclosed, the motor (10) comprising a plurality of rotors (12) and a plurality of stators (14). Each rotor (12) has a drive shaft (16) mounted in bearings (18) and a pinion gear (20) is mounted on each shaft (1...  
WO/2003/065549A1
An axial gap motor comprises a base (10), a shaft (14), a stator frame (12), electromagnet units (19), bearings (11A, 11B), a rotor frame (13) disposed at a predetermined distance from the stator frame (12), permanent magnet units (18) o...  
WO/2003/058796A1
The invention relates to a miniature fan or a micro-fan (200). Said fan comprises a fan housing (150), through which a substantially annular air duct extends in an axial direction, an electronically switchable external-rotor motor (202) ...  
WO/2003/055038A1
An electronically commutated brushless motor (10) including a motor housing (14), a bulge (18) formed in a sidewall of the motor housing (14), and a capacitor (86) assembly housed in the bulge (18). The capacitor (86) assembly includes a...  
WO/2003/055044A1
An electronically commutated brushless motor (10) including a housing (14) for accurately angularly aligning a position sensor (74) relative to a position of a stator (30). The housing (14) includes an integrally formed bridge (703) for ...  
WO/2003/055037A1
A small flat motor capable of suppressing an installation height due to a reduced thickness, reducing the number of parts to reduce a cost, and increasing a reliability, comprising plate-like extension flanges (170a) to (170d) outwardly ...  
WO/2003/055039A2
The invention relates to an encapsulated motor that comprises a rotor with a rotor shaft, a casing with a cylindrical wall, closed at the front end, and a stator, the cylindrical wall of the casing being inserted between the rotor and th...  
WO/2003/052906A2
The invention relates to a brushless electric motor, comprising a rotor magnet, a coil device for electromagnetically driving the rotor magnet, a rotor shaft, for transmission of a rotational displacement, fixed to the rotor magnet and r...  
WO/2003/052901A1
The motor (23) of a hoist is equipped with a rotor core (33) having incorporated therein permanent magnets (37) for forming magnetic poles. The inner peripheral surface of each magnetic pole of the rotor core (33) is convex so that a gap...  
WO/2003/050931A1
A double insulated electronically commutated brushless motor for coupling to a gearbox of a motor driven product. The motor includes a first layer of electrical insulation that includes a plurality of insulating strips (122) formed in th...  
WO/2003/049255A1
Disclosed is an improved flat vibration motor to be disposed in a mobile communication terminal, etc., for generating a vibration signal. A brushless-type vibration motor without brushes and a commutator is adopted, instead of a brush-ty...  
WO/2003/049273A1
In the embodiments described in the specification, a permanent magnet machine (10) includes a stator (14) having windings (16) which intercept flux received from peripheral pole pieces (20) in a rotor (12) generated by permanent magnets ...  
WO2002033803A3
In torque motors known from the art a non-constant air gap is produced between the rotor and the stator that consist of sheet stacks by complex constructions on the stator. The torque motor (30) according to the invention has an unsymmet...  
WO/2003/049259A1
A radial gap motor comprising a base (10), a shaft (14), a stator frame (12), a plurality of electromagnet units (19), bearings (11A, 11B), a rotor frame (13), a plurality of permanent magnet units (19), bearings (11A, 11B), a rotor fram...  
WO/2003/049274A1
An electronically-commutated motor is disclosed, comprising an inductive and/or capacitive rotor position determination, which records a surface area in which the stator and rotor poles (10-15; 17-20) are opposite each other. The total a...  
WO/2003/047071A2
A rotary brushless electric motor is formed within a cylindrical rotor housing structure that surrounds an annular stator ring. The stator is formed of a plurality of individual power modules and corresponding core segments, each module ...  
WO/2003/047072A1
Disclosed is a multiphase brushless DC motor of a concentrated winding type having shunt connection, and a circuit for controlling the same. The brushless DC motor comprises a rotor made up of a permanent magnet with M number of poles, a...  
WO/2003/031842A1
A power transmission device (10) for an electric power steering device (1) intended to achieve reduced cost, small size, weight reduction, and responsiveness during power transmission and to prevent occurrence of noise, comprises a motor...  
WO/2003/030332A2
The invention relates to an electric motor, especially an electronically commuted d.c. motor, comprising a stator and a rotor. The stator and the rotor are coaxially arranged in relation to a longitudinal axis of the electric motor. Said...  
WO/2003/028194A1
An arrangement of magnetic field strength detectors useful for the communication and/or control of a linear electric motor is provided in which the arrangement either comprises a set of at least two detectors (12, 13, 14) separated from ...  
WO/2003/028191A1
A brushless vibrating motor comprises a base member having a placement surface and a parts mount surface, a circuit board disposed on the parts mount side of the base member, a flux plate, two coils, a Hall element, a shaft disposed betw...  
WO/2003/028192A1
A brush-less motor includes a rotor with a magnet alternately magnetized N pole and S pole in a rotating direction, and a core with plural salient poles on which coils are wound. The core faces the magnet to form a magnetic circuit. Each...  
WO2002093713A3
A brushless motor with a rotor (61, 62) having a magnet (65) and a magnetic return (61), the magnet (65) and magnetic return (61) being arranged to form a gap (120) therebetween, and a stator having a coil (47) disposed in the gap (120).  
WO/2003/026106A1
The invention relates to an electronically-commutated electric motor with a permanent magnet, magnetised with multiple poles, several flux guide units, each comprising at least one flux receiver section and a flux concentration section, ...  
WO/2003/026105A1
A method for determining a dimension in a motor is described. By applying Fourier analysis, a sequence of terms is obtained. Since the fifth harmonic is the most undesirable term, the minimization of the fifth harmonic term will make res...  
WO/2003/025516A1
A rotation sensor which easily reduces output ripples markedly. An output signal of a rotation sensing means (C1) is converted to a rotation angle and an angular velocity by a rotation angle sensing section (45) and an angular velocity s...  
WO/2003/023114A1
A direct−drive washing machine capable of performing washing operation by efficiently converting an electric energy inputted into a motor (10) into the mechanical energies of water and cloths or with less vibration and noise, wherein, ...  
WO2002050975A3
Brushless electric machines that are operated with slotted armatures (laminated stator core) in which the stator tooth number Z is a multiple of the phase number m, in the currentless state, are subject to cogging that is the result of t...  
WO2002050983A8
A system and method for controlling a brushless DC motor (58) is provided. The motor (58) includes a rotor (72) and a stator (96) having at least three phases. The rotor (72) is magnetically coupled to and moveable by the stator (96) whe...  
WO/2003/015246A1
The object of the present invention is to provide a low-noise and low-vibration brushless motor and an electric appliance and a vehicle which have the brushless motor and increase in quietness, by optimizing a ratio of the number of pole...  
WO/2003/015239A1
A travel motor used for vehicles comprises a stator, a rotor, and a housing holding them, the rotor having a support member for preventing a rotor magnet from separating from a steel sheet lamination, the steel sheet lamination having a ...  
WO2001076044B1
The invention relates to a method for controlling a reluctance motor comprising a rotor (1) and a stator (10) which is provided with individual stator coils (22). A predefined current flows in the coils (22) according to the load of the ...  
WO/2003/009453A1
The invention concerns a polyphase motor (1) consisting of a fixed part or stator (2) energized by electric coils (3) and a mobile part or stator (4) including N pairs of poles (5) radially magnetised in alternate directions, N being not...  
WO/2003/005530A2
An integrated position resolver for hybrid synchronous electric motors. The present invention represents new improved integrated position resolver for hybrid synchronous electric motors which uses the magnetic flux of the motor also for ...  
WO/2003/005537A1
An electric motor has a stator and a roto. The stator (1) comprises an annular armature (5) having a plurality of poles (7) evenly spaced about the inner circumferential surface of the armature (5) and directed towards a central longitud...  
WO/2003/003547A1
A brushless DC electric motor (Figures 1A and 3) includes a magnetic rotor (5) and a stator (1). The stator (1) has at least one circuit board (3) with circumferentially arrayed of coil windings (2) etched in circuit board metal layers.  
WO/2003/001216A1
The invention relates to a device for generation of a signal dependent on rotational speed, or a tachogenerator, comprising several magnet elements of alternating polarity, arranged as a distribution around the circumference of the rotor...  
WO2002078151A3
An electric machine (M) comprises an armature (A) and an armature (B) between which is defined an air gap (G). The field (A) has at least one pair of oles (N, S) and the inductor (B) has n teeth (20) and n slots (21) per pair of poles (N...  
WO/2003/001650A1
The invention relates to a flange for an electric motor, in particular an electronically-commutated DC motor, which encloses the motor on the front face thereof and which at least partly extends over a wound stator on the electric motor....  
WO/2003/001646A1
The invention relates to a relay support device for an electric motor for the arrangement of a number of relays on a front face of an electric motor, on which winding connectors and signal lines for the electric motor are provided. The r...  
WO/2003/001647A1
The invention relates to a housing cover (48) for an electric motor (10), for closing a motor housing (22) on a front face of the electric motor, on which the winding connectors and signal lines for the electric motor are provided. Said ...  
WO/2003/001652A1
The invention relates to an electronic control device for window openers and other motor-activated mechanisms. The inventive device comprises a motor (2) having no magnetic field sensors close to the magnetic ring thereof (8). Said devic...  
WO/2002/095903A1
The invention relates to a brushless DC drive, comprising a synchronous motor (10), with a stator (12) supporting a multi-phase stator winding (15), a rotor (13), fitted with permanent magnet poles (20) and a switching device (11), fitte...  
WO/2002/095904A1
A magnetic levitation motor for rotating a rotor as levitated above a stator by a DC magnetic field and a stator winding. This motor comprises a DC magnetic field generating means (4) for generating a radial flux around the axis inside a...  
WO2002015200A3
The winding arrangement contains a multilayered winding body (91) consisting of a plurality of windings associated with a winding band (93) and an optical wave guide (30) which passes through the winding body (91) or is introduced into t...  

Matches 801 - 850 out of 16,015