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JP7379786B2 |
[Problem] To provide a DC motor with a brush capable of maintaining an electrical connection state even when used for a long period of time and equipped with a highly reliable earth terminal. [Solution] This DC motor is provided with a p...
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JP7377360B2 |
Provided is an electronically controlled throttle device configured to reduce size of a motor and concurrently to enhance reduction of a noise of the motor. The electronically controlled throttle device includes: a body including a throt...
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JP2023135430A |
To provide a motor which can realize improvement of holding torque.A motor 1 includes: a frame 10; a shaft 2; a rotor 6 fixed to the shaft 2; a first magnet 4 fixed to the frame 10; a member 31 fixed to the shaft 2; and a second magnet 3...
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JP7347229B2 |
To provide a DC motor capable of performing drainage.A DC motor comprises: brush holders 340 each holding a brush 30 in an accommodated state; and a housing 80 including a cylindrical part 81 and accommodating the brush holder 340 therei...
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JP7327947B2 |
A motor with a permanent magnet is provided. A motor has a rotor and an annular drive magnet surrounding the rotor. The drive magnet includes a plurality of magnetized areas having an entire circumference divided into a multiple of at eq...
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JP7314845B2 |
A motor includes a rotating shaft, an armature core, a plurality of coils, a commutator and a pair of brushes. The plurality of coils include three or more coil pairs each of which consists of a pair of coils configured to be point-symme...
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JP2023090483A |
To provide a motor capable of reducing rotor vibration.A motor (1) includes a rotor (3), a frame (12), and a magnet (10). The rotor (3) includes a first coil (41) and a second coil (42) with different numbers of turns, and the magnet (10...
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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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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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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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JP2023007536A |
To provide an electromotor that does not disappear because the magnetic force of a conventional electromotor is blocked between a rotating shaft and a frame, which is a connection portion of a stator, and does not always act as a rotatin...
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JP2023001495A |
To realize downsizing.A motor comprises a frame, a bracket, a brush, a cover, and an electronic component. The bracket comprises a first part stored in the frame, and a second part protruding toward the cover from the first part. The sec...
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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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JP2022176864A |
To provide an electric motor that saves power by eliminating waste of an electric conductive wire used for a coil, reducing electric resistance, making action directions of magnetic force be opposite to each other to increase acting forc...
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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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JP2022170832A |
To provide a brush motor small in size and high in torque with a simple structure.A brush motor 1 comprises: a rotor core 10 provided in a rotor 6; s teeth 11 provided in the rotor core 10; s concentratedly wound coils 7 formed by windin...
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JP2022170006A |
To provide a DC motor capable of reducing vibrations and noises more than ever.When an angle, which is formed by a first virtual line (L1) passing through the circumferential center position of the teeth and a second virtual line (L2) pa...
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JP2022167013A |
To provide a rotor in which a short circuit line in windings can be shortened while strength of a rib of an insulator is secured.A rotor 2 includes: a rotor core 20 having a plurality of teeth 21 and slots 22 positioned between the adjac...
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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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JP7144590B1 |
A convenient, compact, and powerful motor component for vehicles, generators, tools, and machines is provided. [Solution] By making the core of the main body flat, the application is expanded, and by making it a multi-layered structure, ...
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JP7133607B2 |
To provide a blade motor that does not require a rotation shaft and has a rotation mechanism at the outer end of the blade by solving a problem in which, a batteries-powered blower and lift motor has limited power consumption, and the bi...
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JP7118215B1 |
Kind Code: A1 A starter capable of coping with a higher voltage power supply without enlarging the size and increasing the cost is provided. A direct current in which a field coil (2a) and an armature (2c) formed by combining a plurality...
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JP7109886B2 |
A cooling fan module includes a fan and a PMDC motor. The PMDC motor includes a stator and a rotor. The stator has 2P magnetic poles. The rotor includes a rotary shaft, a rotary core, a commutator, and a winding. The rotor core includes ...
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JP7108378B2 |
To provide a motor which is easy to handle, can be easily and inexpensively manufactured, can be made high in output, and allows for cogging torque reduction, and a magnet mounted on the motor.The motor includes: an outer cylinder formed...
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JP2022103485A |
To provide a brush motor capable of reducing temperature rise of the motor.A motor having a rotor 6 rotating with a rotary shaft 3 as a fulcrum, and a stator 7 applying a rotation moment of the rotator 6, is provided with an iron core 4 ...
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JP7077773B2 |
To provide a motor which can make cogging smaller.A motor M has a stator 23 formed by fixing a plurality of permanent magnets 22 on the inner peripheral surface of a yoke housing 21, and a rotor 24 rotatably supported inside the permanen...
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JP7077134B2 |
To provide a rotor and a motor capable of reducing the number of commutator pieces.The rotor 12 includes: a shaft 121; a rotor core 122 provided with eight teeth 122a so as to extend toward outside in a radial direction from the shaft 12...
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JP7073793B2 |
To provide a commutator motor capable of securing a corresponding time before a brush is worn and the commutator motor cannot be driven.A motor unit 300 comprises a brush device 10 disposed while opposing to an outer periphery of a commu...
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JP7074557B2 |
To make it possible to prevent weight balance of an armature from deteriorating even if a double flyer method is adopted to facilitate coil winding work and to provide an electric motor capable of reducing a value of a current flowing in...
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JP7071378B2 |
The invention mainly relates to a DC and brushed rotating electrical machine (10) for traction, comprising an armature (12) formed by a rotor provided with a winding and an inductor (11), characterised in that the inductor (11) has a sep...
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JP7067425B2 |
To suppress product cost of a wiper device for which a motor comprising a low-speed brush and a high-speed brush is used.In a motor housing, a circuit board 58 is accommodated together with a motor body 36 and a speed reduction mechanism...
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JP2022056861A |
To provide an electric parking brake device that can improve safety performance of a vehicle.The electric parking brake device comprises: an electric actuator that presses a friction member against rotation of a rotating member that rota...
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JP7047619B2 |
This motor includes a yoke, an armature, a brush holder and a ground member. The yoke has the shape of a bottomed cylinder that has an inner surface to which a magnet is affixed. The armature is contained within the yoke. The brush holde...
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JP7043207B2 |
A brush motor includes a stator and a rotor. The rotor includes a rotary shaft with a rotor core and commutator fixed thereto. The commutator includes an insulating base and commutator segments fixed to the insulating base. The stator in...
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JP7035981B2 |
To provide a wire motor that is able to effectively block a noise component resulting from rotation of the wiper motor and that is easy to mount a configuration for blocking a noise component.In a conductive partition 50 covering an open...
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JP7033810B2 |
Provided is a permanent magnet brush micromotor and an assembly method thereof. Its upper stator bracket and lower stator bracket are designed to fit together, and the concave parts of the upper stator bracket and lower stator bracket ar...
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JP3236506U |
To provide a flat coreless motor in which an EMC filter can be mounted in a brush holder. A flat coreless motor has an electric rotating portion, a brush holder assembly 30, an upper cover, and a bottom cover 45. The brush holder assembl...
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JP7020443B2 |
To provide an actuator capable of connecting a noise-prevention element between a power supply terminal part arranged inside of a connector part and a contact point part provided to an end part on a base end side of a rotational axis in ...
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JP2022007783A |
To provide a motor and a fan device for improving magnetic efficiency of the motor.A motor 2 includes a stator 3 and a rotor 5. One of the stator 3 and the rotor 5 includes a permanent magnet 4, and the other includes a plurality of coil...
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JP2022007299A |
To provide an electric motor in which driving noise can be reliably reduced.Winding directions of coils that are disposed in point symmetrical positions about a rotation axis are the same, and winding directions of coils that are adjacen...
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JP6984491B2 |
To provide a brush holding structure that can suitably suppress a short circuit between the positive electrode side and the negative electrode side.A brush holding structure 30 holds a plurality of brushes 20 on both sides of positive an...
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JP2021191216A |
To provide a centralized brush motor that is less noisy.A motor includes a magnet 6, a coil 3 wound around slots T1 to T5, a commutator 4 with multiple segments C1 to C10, and multiple brushes 7 having contacts A and B, both ends of the ...
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JP2021191015A |
To provide an electric motor capable of reliably reducing driving noise.A winding start terminal 9a and a winding end terminal 9b of a first coil 91, a second coil 92, and a third coil 93 are connected to two segments 15 of the three seg...
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JP6973591B1 |
To provide a rotor capable of exhibiting a larger magnet torque while avoiding the high cost of a rotor due to the use of a high-performance winding machine and the high cost of molding the entire rotor with an insulator. do. A plurality...
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JP6956338B2 |
A two-pole brush-commutated DC electric motor with a stator and a rotor with a hollow-cylindrical ironless winding having n coil segments and a commutator having n commutator segments. Each coil segment being electrically connected to tw...
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JP6953248B2 |
An electric power steering system and its brush motor are disclosed. The brush motor includes a stator and a rotor rotatably mounted to the stator. The rotor includes a rotary shaft, a commutator and a rotor core fixed to the rotary shaf...
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JP2021166455A |
To provide an electric motor which can improve rotation balance of an armature and realize effective braking by a simple configuration and a method for manufacturing the electric motor.In an electric motor comprising: an armature core ha...
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JP6946065B2 |
Provided is a brushed motor in which noise in a high rotational speed range is effectively decreased. A bar-shaped flat attachment 28 of synthetic resin is inserted along an axial line L into an opening of a slot 16 formed in a core 14 o...
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JPWO2020129922A1 |
The DC motor is configured so that one of the pair of feeding brushes is in contact with the two commutator segments and the other is in contact with only one of the two commutator segments. Has been done. The DC motor further includes a...
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