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Document Title |
JP7297176B1 |
A rotating machine capable of suppressing electrolytic corrosion of bearings in a rotating shaft and reducing scattering of abrasion powder by brushes is provided. A rotating shaft rotatably supported by a bracket via a bearing, and a br...
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JP7286032B1 |
A rotating shaft (12) is rotatably supported by a bracket (42) via a bearing (20), and a support portion (51) provided on the rotating shaft supports the rotating shaft (12) and attaches to the bracket (42) on the outer peripheral side o...
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JP2023074362A |
To provide an electric power tool which can reduce the possibility of noise generation.A hammer drill as an example of an electric power tool has a motor housing, a field and armature for a motor, two brushes, and a brush holder unit (BH...
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JP7279430B2 |
To provide a DC motor capable of suppressing commutator wear.A DC motor 40 used for a starter S for starting an engine includes: a commutator 20 formed of copper or a copper alloy of 99% or more of copper; and a brush 30 for sliding on a...
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JP2023059380A |
To provide a corrector ring and a rotary electric machine capable of reducing an abrasion loss of a brush.A sliding face of a corrector ring 5 attached to a rotor part 1 of a rotary electric machine is coated by a coating body which is s...
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JP7262517B2 |
To provide a dynamo-electric motor which has a structure that keeps a commutator from making contact with a brush holder even when a rotator of the dynamo-electric motor moves in an axial direction, prevents damage to the commutator, and...
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JP7255976B2 |
A motor includes a frame having an outer diameter of 10 millimeters or less and an inner surface. The motor also includes an annular magnet attached to the inner surface of the frame, a bracket provided at the frame, and a columnar brush...
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JP2023051583A |
To provide a work machine capable of securing a long life.A brush 11 has a high resistance part 12 and a low resistance part 13. In the brush 11, a notched part 11a is disposed on the high resistance part 12. The brush 11 has a rectangul...
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JP7254568B2 |
A motor includes a case; and a partition that is fitted into the case and has an easily deformable part formed on an outer peripheral surface for dispersing and dissipating vibration transmitted between the case and the partition. A spac...
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JP2023041533A |
To provide a brush base for a brush motor which corresponds to multiple kinds of lead wires with different thicknesses.An insertion hole 35 penetrated from an outside face 31a to an inside face 31b is formed through which a lead wire 39 ...
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JP2023040848A |
To provide a motor capable of suppressing deformation of a bus bar by a centrifugal force.Disclosed is a motor according to the present invention which includes a rotor shaft which rotates about a rotation shaft together with a rotor of ...
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JP2023040801A |
To provide an oil seal structure of a motor capable of securing the sealing performance of oil.Disclosed is an oil seal structure for a motor according to the present invention which includes: a rotor shaft which rotates around a rotatio...
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JP2023037039A |
To provide an electric motor and the like capable of suppressing efficiency loss even when driven at low voltage and high-speed rotation.An electric motor 2 includes: a rotor 10 with a shaft 13 and a commutator 14 mounted on the shaft 13...
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JP2023032371A |
To provide a motor capable of easily connecting segments with the same phase, in the case where the number of brushes is not increased and the number of electrodes in a permanent magnet is increased.A motor with a brush comprises: a core...
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JP2023509221A |
The present invention comprises a current collector ring (22), a shaft (21) having a major axis (A), windings (25) and windings ordered in increasing order obtained by rotation about the major axis (A). n magnetic poles (1, 2, 3, ..., n-...
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JP7229264B2 |
A discharge device for discharging electric currents in a machine from a rotor part to a stator part, the rotor part in particular having a shaft, the discharge device comprising a contact element and a spring being connectable to the st...
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JP2023024732A |
To provide improved systems and methods for monitoring the wear state of a carbon brush of an electrical machine.A system includes: a carbon brush having an upper face, a lower face on a side opposite to the upper face, and a length from...
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JP2023015875A |
To provide an electric motor which can prevent a brush from becoming a corner contact state to a commutator.An electric motor 1 comprises: a rotor 20 having a rotating shaft 21 extending in a shaft center direction; a commutator 40 attac...
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JP2023015425A |
To provide a commutator, etc. capable of inhibiting a commutator piece from floating when the commutator is rotating, while inhibiting occurrence of another problem.A commutator 14 includes a resin formed body 20, and a plurality of comm...
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JP2023011963A |
To provide an electrical device capable of electrically and mechanically connecting a first conductive wire and a second conductive wire while ensuring a sufficient contact area at the joint between the first conductive wire and the seco...
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JP2023502453A |
A brush device includes a contact surface that faces the commutator of the motor when installed in the motor, the contact surface having a first end and a second end along the axial direction of the motor. The contact surface has a first...
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JP7211257B2 |
A bus bar engaged with each brush holder and electrically connected to positive brushes. A rotor has coils and protrusions extending in an outward direction and electrically connecting the coils to commutator segments. Each brush portion...
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JP2023010722A |
To provide a brush for an electric motor with a low noise.A brush used for contacted to a commutator, includes a brush main body including two opposite axial direction end surfaces and a projection part projected to the commutator from t...
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JP2023010547A |
To provide a brush motor in which sparks between a segment and a brush are less likely to be generated.A brush motor comprises: a magnet 6; a plurality of slots T1 to T5; a coil 3 that is wound across two slots of the plurality of slots;...
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JP7208672B2 |
A system for monitoring the wear state of a carbon brush of a brush holder assembly in which the length of the carbon brush is diminished from an initial length as an end of the carbon brush wears away during use. The system includes a w...
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JP2022190088A |
To provide a system for monitoring a wear state of a carbon brush in an improved electrical machine.A system comprises: a carbon brush including an upper surface, a lower surface opposite the upper surface, a length from the upper surfac...
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JP2022185158A |
To provide an electric motor capable of improving detection accuracy of rotational speed.An electric motor 1 includes: a stator 10 having a plurality of magnetic poles; a rotor 20 having a core 22 including a plurality of slots 24 includ...
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JP2022175619A |
To provide a motor capable of preventing deformation strain from being generated in a brush housing part by a deformation of a recess part in the motor having a plate on which the recess part and the brush housing part are provided adjac...
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JP7176797B2 |
Example brush holder assemblies of an electric machine are disclosed. An example brush holder assembly of an electric machine includes a carbon brush including an upper surface and a lower surface opposite the upper surface. The brush ho...
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JP7174829B2 |
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JP2022170792A |
To provide a DC motor with a commutator capable of sufficiently control conduct and radiate an electromagnetic noise generated, for example, between a carbon brush and the commutator to an outside.A DC motor 10 includes an electric noise...
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JP7166778B2 |
A brush holder apparatus has a stationary support member having two opposing grooves, a fork electrical connector, and a conductive bar passing through a main body of the stationary support member. A brush holder is releasably affixed to...
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JP7166779B2 |
A brush holder apparatus includes a stationary support member having at least one groove, a fork electrical connector, and a conductive bar configured to pass through a portion of a main body of the stationary support member. The conduct...
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JP2022546371A |
An improved contra-rotating (CR) differential electric motor assembly is utilized to power fans for moving aircraft or air, saving mounting space and mounting space for conventional motors with only one propeller. Containing two counter-...
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JP2022162071A |
To provide a motor with reduced noise, and to provide a rotation device comprising the motor, and to provide a vehicle that comprises an air conditioning system comprising the rotation device.A motor 10 comprises: an amateur 30 having a ...
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JP7156171B2 |
To provide a brush holder device capable of suitably suppressing vibration of a PTC thermistor.A brush holder device 21 includes: a holder member 22; a power supply brush held by the holder member 22; and a plate-shaped PTC thermistor 26...
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JP7154802B2 |
A brush holder apparatus has a stationary support member having two opposing grooves, a fork electrical connector, and a conductive bar configured to pass through a portion of a main body of the stationary support member. The conductive ...
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JP2022159167A |
To provide a motor with a brush and an electric product that are capable of suppressing damage to the brush due to collision between a pin of a commutator and the brush.A motor with a brush includes a shaft 10, an armature 20 provided ar...
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JP2022149108A |
To provide a sliding contact member capable of achieving low friction and low wear even in low humidity and high-temperature environments, and capable of continuously reducing wear and friction without providing a continuous supply mecha...
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JP2022142804A |
To provide a small and low-cost ring capacitor-provided commutator motor in which a motor weight is not increased and which has high reliability in high-speed rotation and heat generation in an armature.A small DC motor is provided with ...
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JP7140843B2 |
The present application provides an end-cap for a DC brush motor, the end-cap being provided with a power source, two carbon brushes and two sets of multiple rod-shaped inductors connected in series, one end of a first set of multiple ro...
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JP2022134461A |
To provide a collector chamber ventilation system that even when hydrogen gas leakage occurs in the vicinity of a collector ring in a collector chamber of a rotary electric machine, suppresses increase in a hydrogen gas concentration to ...
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JP7137427B2 |
To reduce the possibility of an inter-phase short circuit near the rotor end of a coil type rotary machine.A coil type rotary electric machine includes a rotor 10, a stator having a stator winding passing through a stator iron core, and ...
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JP2022132729A |
To provide a starter which is small and has high heat dissipation.A starter includes: a yoke 4 forming a magnetic circuit; an armature 7 for generating rotation torque by magnetic flux from the yoke 4; a commutator 9 arranged coaxially w...
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JP7133098B2 |
The invention relates to a brush module (10) for an electric machine and to a method for mounting such a brush module, the brush module having a brush (13) for forming an electric contact with a slip ring, the brush module having an moun...
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JP7131453B2 |
To provide a technique which is effective for reducing electromagnetic noise generated during arc discharge in a rotary electric machine in a low cost.In a rotary electric machine 1, a plurality of commutator segments 32 and a plurality ...
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JP7131190B2 |
To provide a brush device (DC motor) capable of stabilizing a slide state at an earlier stage, during initial sliding of a feed brush.A tip of a feed brush 32 is brought into contact with a commutator 24 in a posture tilting obliquely do...
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JP2022129702A |
To secure a long term soundness of a brush by reducing abrasion and deformation due to mechanical factors of the brush of an excitation type rotary electric machine based on power supply by a brush scheme.A rotary electric machine of the...
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JP7130718B2 |
To provide a motor with reduced noise, and to provide a rotation device comprising the motor, and to provide a vehicle that comprises an air conditioning system comprising the rotation device.A motor 10 comprises: an amateur 30 having a ...
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JP2022129237A |
To improve visibility of the location of a brush on a brush holder.In a brushed motor 10, a brush holder 24 houses a brush 22 so as to be movable toward a commutator 14. A spring 26 urges the brush housed in the brush holder 24 toward th...
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