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JP6779818B2 |
To provide a commutator for a DC motor with an annular varistor and a riser part which eliminates adverse effect of a flux residue and prevents damage of the annular varistor due to a heating bar.A commutator for a DC motor comprises a m...
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JP2020178462A |
To reduce the assembling failure of a brush in a motor device.A motor device has a brush holder 60 holding a brush 28, a brush holder stay 64 provided with the brush holder 60, and a spring 29 pressing a back surface portion 28a of the b...
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JP2020174437A |
To use a current-collector brush with no waste without damaging a collector ring.A brush burnout prevention device 400 is constituted so as to, when a current-collector brush 104 in a rotary electric machine abuts on a collector ring 301...
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JP2020171091A |
To provide a DC motor capable of suppressing wear of a commutator.A DC motor 40 includes a commutator 20 formed of copper or a copper alloy of 99% or more of copper and a brush 30 to be in contact with the commutator 20 while being press...
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JP2020171195A |
To provide an inner rotor type motor which can hold a rotation position and has a simple structure.An inner rotor type motor 1 includes: an armature assembly 1b; a frame assembly 1a; and a biasing structure 40. The armature assembly 1b h...
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JP6769761B2 |
A slip ring includes a dielectric carrier body having a circumferential lateral surface and radially oriented feed-through leads, a first conductive element, and a second conductive element. In a first section, the conductive elements ex...
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JP6768254B2 |
To provide a commutator capable of shortening a riser, while ensuring circularity of a conductive section and rigidity of the commutator body.A commutator 30 includes a cylindrical commutator body 31 having insulation quality and extrapo...
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JP2020167814A |
To stably supply electric power to a brush while suppressing sparks when a brush length reaches a final stage by abutting a brush and a power supply member at at least two opposed positions and cutting off power supply when the brush len...
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JP2020156120A |
To provide a long-life and small-sized motor etc. which can minimize decrease in efficiency, even if a torsion spring is used as a brush spring for pressing a brush against a commutator.A motor 2 comprises a rotor 10, a shaft 30 fixed on...
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JP2020150777A |
To provide an electric motor having an electrical connection structure capable of improving the reliability of the electrical connection between a conductive terminal and an electrical wire while improving the bond strength between the c...
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JP2020145901A |
To provide a static exciting system synchronous machine, capable of reducing a trouble and a cost for a maintenance inspection by reducing an exchange frequency of a brush.A motor 100 of a static exciting system, comprises: brush guides ...
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JP2020145825A |
To provide a brush holding structure which causes no deformation during inspection of a power feeding terminal, and a motor comprising the brush holding structure.A brush holding structure includes: a brush assy 60 in contact with a comm...
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JP2020145824A |
To provide a motor in which insulation performance between a motor case and a brush assembly is improved.A motor according to the present invention is provided with: an iron motor case 10; a cylindrical resin brush base 50 with a bottom;...
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JP6753757B2 |
To provide a DC motor for a fuel pump and a carbon brush with a dramatically improved life.A DC motor 100 for a fuel pump has a carbon brush 40 in sliding contact with an outer peripheral surface of a commutator 23, in which a recess 40-...
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JP2020141467A |
To provide a commutator in which thermal deterioration of an insulating body due to welding of a winding to a hook portion can be suppressed without increasing the number of steps, and an electric motor including the commutator.A plurali...
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JP6750773B2 |
To provide a motor capable of improving workability of a work for forming a deformation member between a conductive brush and a wall part.A motor 10 comprises: a commutator 33; conductive brushes 42 and 43 contacted with the commutator 3...
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JP2020137344A |
To provide an electric motor and the like capable of suppressing sparks from occurring between the commutator and the brush.An electric motor 2 includes: a rotor 10 with a rotating shaft 30; a commutator 40 attached to the rotating shaft...
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JP2020129886A |
To provide a power supply structure of a brush motor in which pigtails that have been conventionally used is omitted to make a power supply structure simple.While providing a claw portion 6a so as to project on a substrate 1 side of a br...
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JP2020127276A |
To reduce electric noise and to suppress increase in the number of components.A motor 10 with a decelerator includes: a rotor 34; a brush that comes into contact with a commutator and slides together; and a choke coil 38 connected to the...
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JP6744299B2 |
The present invention is a structure of an electrical connection portion formed by thermal bonding of a terminal 53 of a current-carrying component 50 of a motor and a winding wire 30. The terminal 53 includes a lock portion 53a position...
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JP6725719B2 |
A monitoring apparatus configured for monitoring a carbon brush of a brush holder assembly of an electrical machine. The monitoring apparatus may include a flexible sensor and a signal processing circuit for processing a signal received ...
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JP6723988B2 |
A ring varistor-based method for reducing electromagnetic interference of a motor, a corresponding motor commutator, and the motor. The method comprises: forming a counterbore in an end of a motor commutator; and placing a ring varistor ...
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JP6720319B2 |
A brush holder 29 is formed bent into a quadrangular tube shape and comprises a first side wall section 29a, a second side wall section 29b, a third side wall section 29c, and a fourth side wall section 29d. Two first protruding sections...
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JP2020102989A |
To solve a problem that an electric fuel pump cannot pressure-feed fuel when a brush of the electric fuel pump is worn away in excess of a certain amount.A rotor RT is accommodated in a cylindrical stator ST. A impeller 25 for pressure-f...
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JP2020520224A |
The present invention is a carbon holder plate (50) for an electric motor (10), a guide element (55) for a carbon brush (52, 53), and the carbon brush (52, 53) is a guide. It corresponds to the guide element (55) displaced in the element...
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JP2020102963A |
To provide a commutator of an electric-motor superior in spark resistance.A commutator 10 includes: multiple plate-shaped commutator pieces each having a sliding portion 15; and a support 12 that supports the commutator pieces on the out...
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JP2020102964A |
To provide a commutator for an electric-motor superior in wear resistance.A commutator 10 includes: multiple plate commutator pieces 11; and a rotating support(support) 12 for supporting the commutator pieces. The multiple commutator pie...
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JP6717731B2 |
To provide a rotary electric machine capable of improving an operation lifetime of the rotary electric machine and preventing non-planned stop by predicting occurrence of abnormal wear of a brush at an early stage.A rotary electric machi...
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JP6713006B2 |
A sliding contact material that is used for a constituent material, particularly a brush, of a motor. The sliding contact material includes: Pd in an amount of 20.0% by mass or more and 50.0% by mass or less; Ni and/or Co in an amount of...
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JP2020096492A |
To provide a commutator motor capable of reducing noises of the current flowing through a winding.A core 4 has multiple teeth 41 and multiple slots 45. The winding 51 is wound on multiple teeth 41 through multiple slots 45 and electrical...
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JP2020092546A |
To provide a wound motor system and an abnormality detection method capable of suppressing burnout of an electric motor.The wound motor system in an embodiment is a wound-rotor type motor that rotates a shaft, which includes: a collector...
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JP6702003B2 |
To provide a brush holder having a structure capable of suppressing protrusion of a seal member formed by integral molding from a desired portion.A stepped portion 44 is provided on the radially inner surface 41b of an extending portion ...
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JP6695240B2 |
To achieve suppression of a rise in manufacture cost by adopting aluminum coil without complicating a structure of a segment.A first surface S1 and a second surface S2 sandwiching an aluminum coil are formed at a copper riser part 44. At...
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JP6693164B2 |
To provide a motor capable of suppressing reduction in the lifetime of a power supply brush with a low electroresistance value among multiple power supply brushes.A rectifier 45 comprises multiple segments 48 that are arranged side by si...
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JP6690849B2 |
To provide a motor with reduced noise.A motor comprises: an amateur having a commutator; a conductive brush contacted with the commutator; a first wall part that has a first surface extending to the commutator side along a first surface ...
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JP6688071B2 |
A brush for an electric motor has a brush body having a front end surface configured to make sliding electrical contact with a commutator of the motor. First and second side surfaces are connected to the front end surface. The first side...
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JP6685380B2 |
This internal-combustion engine valve timing control device is provided with: an electric motor 8 which causes a camshaft to rotate relative to a timing sprocket; a pair of power supply brushes 31a, 31b to which electric power is supplie...
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JP6682919B2 |
To provide a motor that can suppress occurrence of spark in a power feeding brush with a low electric resistance value out of a plurality of power feeding brushes.Two power feeding brushes 64 of an anode and two power feeding brushes 64 ...
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JP2020043664A |
To provide a motor with a brush capable of detecting a sign of power supply failure due to wear of a power supply brush.A motor 1 with a brush includes: a terminal 3 fixed to a housing 2; a power supply brush 6 that is held movably relat...
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JP2020043678A |
To provide a brush and brush holder for a rotary electric machine, capable of preventing sticking between a brush and a bush holder.The present invention comprises: a brush 11 which is energized by sliding a bottom face 11b against a sli...
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JP6667471B2 |
To enable a reduction of a manufacturing cost of a commutator.A commutator has a plurality of segments annularly arrayed at a constant interval, and a resin portion arranged at an inner peripheral side of the plurality of segments and fo...
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JP6669360B2 |
A method of replacing a brush holder includes positioning a handle on the brush holder while the brush holder is connected to a support, rotating the handle relative to the brush holder in a first direction that is clockwise or counter-c...
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JP6665887B2 |
To facilitate assembly of a brush ASSY, and to enable improvement of productivity.In order to facilitate assembly of a brush ASSY and to enable improvement of productivity, a brush device includes a plus side brush sub-assembly having a ...
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JP6661237B2 |
To provide a motor device with a brushless holder which can be assembled by automated assembly equipment.In a motor device, on a first wall surface of first and second bottom wall parts 61a1, 61a2, a brush, a varistor, a capacitor, a cho...
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JP6660521B2 |
To provide a commutator motor element having a new anti-centrifugal force structure with new engagement layers formed on surfaces of commutator pieces which are structure bodies in the shape of an irregular comb or the like.A commutator ...
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JP6663280B2 |
To improve the S/N ratio by positively increasing a current ripple of a tenth-order component and consequently, to enable a rotational state of an armature to be precisely controlled.A motor device includes: first to fourth magnets 26a t...
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JP6657678B2 |
To provide a DC motor capable of easily securing coaxial property between commutators and feed brushes.The DC motor includes: a brush holder 41 fixed to an end frame 22 and having a plurality of brush boxes 44 disposed at equal intervals...
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JP6655452B2 |
To provide an electric motor capable of achieving suppression of the generation of spark discharge and life prolongation while suppressing the generation of brush sliding noise and vibration during rotation of an armature.A commutator 47...
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JP6645366B2 |
To provide a motor device manufacturing method capable of preventing trouble such as breakage by preventing a force in a complicated direction from being applied to a snap fit, and allowing only a required minimum load to be applied in s...
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JP6647357B2 |
A non-contact bearing has opposing surfaces (551,560) with relative motion and one surface (560) issuing higher than ambient pressure through a porous restriction, wherein the porous restriction (558) is part of a monolithic porous body,...
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