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JP5044360B2 |
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JP5044263B2 |
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JP5044542B2 |
The invention relates to an electrical machine (10), and to a method for producing such an electrical machine, especially for adjusting mobile parts in a motor vehicle. Said machine comprises a rotor (20) on which a bipolar electrical wi...
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JP5044315B2 |
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JP5044377B2 |
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JP2012191752A |
To provide an electromagnetic rotary machine for which a plurality of magnets can be surely fixed by a relatively simple configuration.The electromagnetic rotary machine includes: a rotor unit including a rotor core fixed to a rotary sha...
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JP5039667B2 |
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JP5032264B2 |
A stator has four or more magnetic poles. A commutator has a plurality of segments arranged in the circumferential direction and a short-circuit conductor for short-circuiting predetermined segments from among these segments. Each segmen...
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JP5032252B2 |
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JP5026949B2 |
Magnetic poles are arranged such that the N pole and the S pole alternate in a circumferential direction. Two N poles face each other with an interval of 180° therebetween, and two S poles face each other with an interval of 180° there...
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JP5022798B2 |
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JP5026028B2 |
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JP2012175759A |
To provide a commutator and a DC motor that constantly prevent brush vibration during motor rotation and effectively prevent brush wear.A commutator 10 includes a commutator body section 12, and a commutator section 11 comprising a plura...
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JP2012175731A |
To provide a DC motor which can have an armature made larger while equal in total external diameter to a DC motor employing a frame functioning as a back yoke.A field magnet 4 in a cylindrical shape is held by a bracket 2 and a bracket 3...
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JP2012175840A |
To reduce brush moving force for moving a brush so as to mechanically generate a weak field magnetic state by an electric motor with the brush.A pair of fans 33A, 33B are fixed on a revolving shaft 23 of an electric motor 21, and a winds...
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JP2012161192A |
To facilitate fusing of a coil to a riser of a commutator segment and install a fin agitating air within a motor, in a DC motor.In a DC motor, a rotor 23 rotatable with respect to a magnet 22 in a casing 21 includes: a commutator 5 havin...
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JP5006593B2 |
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JP5006592B2 |
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JP5006922B2 |
To provide a wiper motor capable of switching a rotation speed even when the motor is made to have multiple poles. Four magnets 22 are attached on the inner surface of a motor yoke of the wiper motor 18, a first conductor and a second co...
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JP5006537B2 |
To provide a wiper motor that can be switched in rotational speed even if the motor is multi-polarized. Four magnets 22 are installed on the internal face of a motor yoke of the wiper motor 18, sixteen slots 27a to 27p are formed at an a...
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JP2012157116A |
To provide a DC motor with a brush which safely and securely makes a conductive connection between commutator segments and a varistor without soldering the commutator segments to the varistor.A DC motor with a brush includes a commutator...
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JP5002667B2 |
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JP2012152102A |
To provide an electric motor which can be compact in size in a front-back direction.An electric motor comprises: a core 124b; a substantially cylindrical housing covering the core 124b, having a substantially oval cross section which has...
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JP4993177B2 |
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JP4991932B2 |
The invention relates to a DC motor, particularly for a fan device of a motor vehicle, having a stator and a metal grounding plate arranged on the stator, for receiving at least one leadthrough capacitor of an interference suppressor dev...
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JP4984570B2 |
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JP4986412B2 |
A brush assembly 22 for an electric motor 10 has brush holder 24 supporting a brush 26 and a brush spring. The brush holder 24 has a strip of brass having a central portion and two end portions 28, 40. The central portion has two pins 30...
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JP4981420B2 |
To provide an electric motor provided with a deceleration mechanism that is multipolarized, while enabling switching of the rotational speed. Four magnets 26a-26d are mounted to the inner face of the motor yoke of a wiper motor 18, and s...
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JP2012135076A |
To provide a small-sized motor having a coil with a core giving a high power and a coreless wire and realizing a longer life of a brush by reducing the current changeover frequency.A motor has: a rotation body orthogonal to the center of...
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JP4974482B2 |
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JP4968350B2 |
A current detection unit detects an electric current caused by superimposing a direct current from a direct-current power source on an alternating current from an alternating-current power source and supplied through a brush to a direct-...
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JP2012120359A |
To provide a coreless motor capable of reducing the frequency of changeover of current and of prolonging a service life of a brush by performing the changeover of current with a simple constitution by the brush a commutator.A motor compr...
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JP4957038B2 |
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JP2012110144A |
To provide a compact and long life DC motor.A plurality of current paths directing from the rotation axis of a rotor toward the outer periphery are formed on the case side. A permanent magnet which has been magnetized in the rotation axi...
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JP2012105442A |
To provide a small-sized rotor for rotary electric machines which facilitates winding a coil around each slot, and to provide a method of forming the rotor.A rotor 3 of an electric motor 1 is formed by attaching three split cores 33 at a...
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JP4940022B2 |
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JP4923735B2 |
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JP4923545B2 |
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JP4921092B2 |
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JP4920628B2 |
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JP4906355B2 |
A motor (20) for driving a movable body includes a cylinder portion (26a) that holds a field magnet, a coil holder disposed rotatably to the cylinder portion, a conducting coil (101a, 101b) wound on the coil holder and generates a rotati...
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JP4907440B2 |
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JP2012060726A |
To provide an intra-motor insulator removing device for efficiently removing an insulator in a brush motor without enlarging power consumption and to provide an optical pickup driving mechanism.An optical pickup feeding mechanism 1 inclu...
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JP4901844B2 |
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JP4898325B2 |
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JP4896610B2 |
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JP2012050231A |
To solve the problem of the conventional magnet rotation type motor in which: although a coil rotation type clip motor has a simple structure and is convenient for learning principle of a motor, it is not suitable for taking out a torque...
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JP2012044848A |
To provide a commutator and a DC motor that can suppress an electromagnetic noise to a low level, that has a simple structure, and that can be manufactured at a low cost.A commutator 10 has: a commutator main body 11b formed in a circumf...
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JP2012044814A |
To provide a motor device that can reduce the number of components and the number of assembling processes and can suppress accumulation of assembling errors.A cylindrical yoke 21 to whose inner peripheral surface a pair of magnets 31 are...
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JP4886469B2 |
To provide an armature of a DC motor which can improve rectification and can enhance motor performance in a three-phase DC motor, having the number of segments which is double the number of slots, and to provide the DC motor and an armat...
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