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JP2004364414A |
To provide an electric motor which can reduce magnetic sound.This motor is provided with brushes 51a-51d, with the centrifugal centers of brushes 51c and 51d on negative load side being slid x° counterclockwise from the circumferential ...
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JP2004364415A |
To prevent the deformation of a plate due to the heating of a brush without increasing its parts count while making the plate of resin material low in heat resistance, and to easily and surely prevent the widening of the interval between...
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JP2004344247A |
To provide a mechanism for transmitting ultrasonic receiving signals between a rotating part and a non-rotating part of an ultrasonic probe, capable of preventing wear caused by sliding as much as possible while bringing the rotating par...
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JP2004535146A |
The invention concerns a commutator (22; 22a; 22b) for a multi-pole commutator motor (14) having at least four stator poles (16-19) and armature coils (31-42) interacting with them that are electrically interconnected with two commutator...
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JP2004312921A |
To provide a metal coated carbon brush, in which the film thickness of a metal to be coated on the surface is equalized and color unevenness on the surface is suppressed.The metal is coated on the surface of a base material, composed of ...
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JP3582735B2 |
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JP3578142B2 |
To provide a connecting structure and its connecting method, and a rotating electric equipment using its connecting structure as well as an alternating current generator using the same, wherein a local heating is prevented without removi...
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JP2004289934A |
To provide a brush supporting member that makes it possible to cut cost by simplifying a metal mold structure and molding processes in insert molding for fixing metal bracket plates and feeding brushes to one another integrally via an in...
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JP3575443B2 |
To restrain self-excited vibration of a contact piece sliding in contact with a fixed shaft and to prevent abnormal sound from being produced on a ground plate for grounding between the photoreceptor and the fixed shaft of a photorecepto...
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JP2004282977A |
To provide an assembled commutator for a micro-coreless motor that prevents the fall or drop of contact brackets during assembling work of an assembled commutator and that improves the circularity of an outside circumferential surface af...
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JP2004273406A |
To provide a method of current collection without slip of contacts at rolling contact, and with little fluctuation of electric resistance due to slip or the like, since a constant strong pressure can be put on it at all times.A conductiv...
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JP2004265873A |
To provide a brush having excellent durability, whereby current density can be heightened, because its abrasion is not much, its resistance loss is not much, and accordingly its temperature rise is small.In this carbon brush for electric...
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JP2004260877A |
To provide a low-cost commutator, which facilitates the connection between a coil and itself, and a commutator motor.In the commutator 2, which is equipped with a planar segment 23 formed on a board 20 by printing and where a rotor 10 is...
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JP2004246768A |
To attain wiring saving and space saving by attaching a rotational angle detector to a slip ring.The slip ring with the rotational angle detector is constituted so as to obtain space saving and wiring saving as compared with conventional...
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JP3559193B2 |
A commutator motor includes a cylindrical yoke, magnets disposed opposite each other inside the yoke, a shaft disposed on the central axis of the yoke so as to rotate freely, an armature secured to the shaft, a commutator secured to one ...
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JP3559171B2 |
A commutator for a dynamo-electric machine according to the present invention comprises a cylindrical commutator main body provided with a plurality of commutator segments disposed around the circumference thereof, an equalizer assembly ...
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JP3559181B2 |
A motor for an electric power steering assembly comprises permanent magnets constituting four or more poles secured to the inner wall of a yoke, a shaft disposed inside the yoke so as to be able to rotate freely, an armature secured to t...
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JP3559178B2 |
A dynamo-electric machine comprises a shaft, a core secured to the shaft having slots formed therein extending in the axial direction, a winding composed of a wiring wound by a lap winding method through the slots, a commutator having co...
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JP2004236468A |
To provide a low cost mechanism for preventing disconnection of winding when a motor is overloaded.Independently from a brush spring 32, a brush drive member 34 is provided to extend from the operating face 30b of a brush 30 toward the s...
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JP3554738B2 |
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JP2004229352A |
To provide an armature 1 for a rotating machine capable of realizing size and weight reductions, and contributing to performance improvement.A rectifier 5 uses one side of a pair of external coil ends 9b as a segment 12, and is constitut...
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JP2004222454A |
To prevent backlash in a brush holder portion and further reduce noise when the brush holder is formed by caulking a holder onto a stay.Through holes 7f and 8f are formed in the inner radius-side portions of stay portions 7a and 8a forme...
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JP2004222441A |
To provide a method for manufacturing a metal strip for a commutator capable of effectively and easily manufacturing the metal strip having a projection with its tip swollen.A projection 16 having a recess 17 at its top is formed into th...
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JP3549279B2 |
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JP2004208398A |
To enhance a joint strength between an iron layer and a carbon layer when forming the iron layer on the surface of a carbon substrate to form a functionally gradient material.Iron alloy powder whose main component is iron such as stainle...
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JP3544347B2 |
To reduce torque ripple of a rotary electric machine and its operation noise. Terminal plates 1, 3 are set in a brush holder base 2, a spring 4 and a brush 6 are set in the brush holder base 2, and connection of a terminal plate 13 and p...
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JP2004195650A |
To miniaturize a rotary joint, while securing transmission of fluid and electricity in the rotary joint.This rotary joint is provided with a fixed body 1 and a rotating body rotatably connected and supported on the fixed body 1. A boss p...
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JP2004187459A |
To provide a commutator which is be used for motor-driven tools or the like, can suppress the occurrence of noise caused by the floating of a commutator piece during high-speed rotation, can improve service lifetimes of a carbon brush an...
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JP2004519196A |
An actuating drive according to prior art comprises a plug contact arranged on a printed circuit board, and a brush holder which is not arranged on the printed circuit board, but is electrically connected thereto, the disadvantage of one...
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JP2004173428A |
To provide an electric brush in which the occurrence of the spark of the brush due to vibration is eliminated by sufficiently suppressing the vibration applied to the brush due to the eccentricity or the ruggedness of a commutator and th...
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JP2004167682A |
To prevent the abnormal wear or the like of a sliding part by preventing the infiltration of dust, waterdrops, or the like into the sliding part in a rotary joint A provided with a power slip ring 21 and an electric signal slip ring 31 f...
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JP3537498B2 |
PURPOSE: To obtain an end cap assembly device which is easy to produce, low in cost and simple in construction by a method, wherein a suppression element has at least one lead wire which is attached to the outside surface of an inner com...
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JP3537813B2 |
To provide a method and a device for performing microanalysis, micro-synthesized analysis, and procedures. A micro-system platform having a micro-hydraulic engineering constitutional element, counter heating element, temperature sensing ...
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JP3538944B2 |
PURPOSE: To provide an electric power steering device in which an electric wave noise is little and its reliability is high as well as to miniaturize the device and simplify wiring. CONSTITUTION: In an EPS 1, a control circuit 9, an elec...
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JP2004517600A |
The invention relates to an armature (1) with a depression (7) in the commutator (2). Said depression has seepage barriers (15) that prevent liquid (23) from coming into contact with the plates (4) of the commutator (2).
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JP3536484B2 |
To lengthen the life time of an AC generator for vehicles, suppressing the influence of the vibration of a stationary side brush of the generator to lengthen its resistive life time, by reducing the weight of the stationary side brush, i...
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JP3536472B2 |
To reduce the size at the coupling part of slip ring and connection bar by eliminating the connection between them. A slip ring 41 is made of a carbonaceous member so that a stator side brush 51 can be made of a metallic member and the i...
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JP3536376B2 |
PURPOSE: To prolong the life of a motor by suppressing the vibration of a brush by applying a vibration-damping material at a proper position on the brush and suppressing a resonance frequency also to a constant and low value. CONSTITUTI...
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JP3532203B2 |
PCT No. PCT/EP93/02803 Sec. 371 Date Apr. 5, 1995 Sec. 102(e) Date Apr. 5, 1995 PCT Filed Oct. 12, 1993 PCT Pub. No. WO94/08771 PCT Pub. Date Apr. 28, 1994A sliding body for electric collectors and the like is press-formed from a powder ...
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JP3532423B2 |
To raise the strength of a segment, while shortening the length of slit cut processing. In a commutator, where a plurality of segments 10 are arranged in circular form in a condition of being insulated from one another and are retained b...
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JP3530034B2 |
To provide a rectifying device for dynamo-electric machine having a highly productive small equalizer. This rectifying device for dynamo-electric machine is provided with a commutator 6 arranged with a plurality of commutator segments in...
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JP3528830B2 |
To obtain an inexpensive rotating electric machine having low noise and stable performance that can shorten or omit a conditioning process, and to obtain a manufacturing method therefor. The rotating electric machine is provided with: a ...
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JP2004147495A |
To provide a commutator wherein even if high pressure is applied to one side of the axial direction of a commutator segment from the outside of a radial direction, the other side of the axial direction of the commutator segment does not ...
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JP3527576B2 |
PURPOSE: To provide a high vibration damping capability to a damping material for small-sized motors in their working temperature range by composing a viscoelastic material out of an adhesive containing the copolymerization polymer of ac...
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JP3524986B2 |
PURPOSE: To make it possible to protect a brush with high reliability when an abnormal spark is generated by electrically connecting an electric connector at a predetermined temperature or lower and forming the connector of a heat-sensit...
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JP3526349B2 |
PURPOSE: To provide an inexpensive brush unit for electric rotating machine in which the electric rotating machine can be protected reliably by preventing the temperature of brush from increasing unduly owing to abnormal spark occurring ...
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JP3523626B2 |
To provide a web feeder which facilitates maintenance work and replacement work at the time of trouble, and has no influence on the part between supporting points of a rotating shaft of support frames even when wiring increases and a con...
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JP3523546B2 |
To suppress noise by reducing an oscillation components in the direction of motor shaft at a sliding part with a commutator at the time of rotating a motor, and prevent brush tension from changing, when an outer terminal is inserted from...
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JP2004129366A |
To provide a brush holder capable of surely holding an energizing member by an energizing member holding surface of a brush case without increasing a cost.A brush holder 10 is provided with a brush case 30 in which a brush 40 and a brush...
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JP2004124224A |
To provide a resin curable-type carbon brush by which the work efficiency of the brush can be improved even after long use and service life can be prolonged.A filler and a thermosetting resin to be a binder are kneaded with the addition ...
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