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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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JP2021145454A |
To provide a rotator that even in a case of including a commutator piece and an electric wire connected to the commutator piece which are made of dissimilar metal materials and covering a connection portion between the commutator piece a...
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JP2021141653A |
To provide a commutator motor that can perform good commutation.A commutator motor 1 includes: a yoke 2; a plurality of magnets 3, 4 arranged inside the yoke 2; a shaft 7 sandwiched between the magnets 3, 4 and supported in a freely rota...
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JP2021141783A |
To provide a rotary electric machine which enables easy change of characteristics.A motor 10 includes: a stator 30 fixed to an inner peripheral surface of a cylindrical housing 20; and a rotor 40 rotatably fixed so as to face the stator ...
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JP6934373B2 |
Provided is a motor that can switch the rotational speed of an armature by switching the energization pattern of a brush, wherein the motor can reduce a current ripple. Equalizing wires 52 short circuit a 1st segment and a 7th segment, s...
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JPWO2020066953A1 |
One embodiment of the motor of the present invention is a rotor having a shaft extending along a central axis and a commutator fixed to the shaft, a brush assembly electrically connected to the rotor, and a housing containing the rotor a...
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JP2021129462A |
To provide a multipurpose CM motor that can form the shape according to the application by changing the arrangement and structure, and can simplify the structure by integrating a commutator piece and a core-axis to increase the space and...
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JP6928563B2 |
According to the present invention, a coil (7) is continuously wound in a single pass around each of a series of teeth (50), and connected to each segment (14).
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JP2021121142A |
To provide a motor that can achieve both extension of a life of a motor and increase in a line product ratio.A motor 1 comprises: a rotor 2 that has a plurality of magnetic pole parts arranged in a circumferential direction; first coils ...
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JP2021121156A |
To provide a motor that increases torque and can be easily manufactured.A motor 1A comprises: a rotor 2 that has a plurality of magnetic pole parts arranged in a circumferential direction; coils 31 to 36 that are respectively wound aroun...
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JP6915391B2 |
A stator includes a main yoke having a cylindrical shape with a bottom, an auxiliary yoke having a band shape arranged on an outer or inner circumferential wall surface of this main yoke, and a field magnet arranged inside the main yoke....
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JP6898836B2 |
To provide a rotary electric machine with which it is possible to generate a rotation torque to a rotor even when a stator winding can only be supplied with two-phase AC currents out of three-phase AC currents.A rotary electric machine 1...
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JP6882883B2 |
To provide a flat motor for magnetic therapy which utilizes a small-sized motor including a magnet that generates a static magnetic field and an armature coil that generates a dynamic magnetic field, as a magnetic therapeutic device.A fl...
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JP6878215B2 |
Provided is a motor that can switch the rotational speed of an armature by switching the energization pattern of a brush, wherein the motor can prevent the occurrence of a non-energization condition and reliably cause the armature to rot...
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JP2021072751A |
To provide an electric motor capable of improving the performance of the electric motor without reducing the air gap.An electric motor 1 includes: a rotor 20 having a rotating shaft 21 and a plurality of armature windings 22 arranged aro...
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JP2021069145A |
To provide a motor in which a brush is prevented from protruding from a brush accommodation part, without shortening an effective abrasion length of the brush.A motor comprises: a rotor 20 including a rotary shaft 21; a rectifier 50 fitt...
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JP6861022B2 |
To provide a motor in simple structure comprising a brake function for braking rotations of an output shaft in a non-excitation state, and a driving device.A motor 100 comprises: a shaft 102; a rotor 105 which is coupled to the shaft 102...
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JP6852876B2 |
To provide a rotary electric machine that reduces the amount of noise radiation from a shaft that is a radiation source.A shaft 501 which is a noise radiation source of a rotary electric machine is composed of a metal conductive conducti...
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JP2021048686A |
To properly control operating sound noise of a motor.A method for adjusting a motor capable of bidirectional rotation includes the step of: acquiring sound pressure of generated sound while changing rotation speed of a motor; obtaining a...
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JP6848495B2 |
To provide a motor capable of suppressing occurrence of abnormal noise.A motor case 10 of a motor 1 has a yoke housing 40 and an end frame 50. The yoke housing 40 has a bearing accommodating portion 44 for accommodating a first ball bear...
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JP2021035095A |
To provide a motor in which a bearing that pivotally supports a rotational shaft can be grounded to a yoke housing without increasing the number of components.A brush holder 31 disposed in an opening portion of a conductive yoke housing ...
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JP2021035243A |
To reduce noise more than before in a DC brush motor.A DC brush motor according to an embodiment of the present invention includes a motor case, a first brush arm and a second brush arm that are provided in the motor case, and extend sub...
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JP6834520B2 |
To reduce a current value of cyclic current flowing in winding.In a rotary electric machine M, the number of teeth 22 which a plurality of coil parts 26 straddle is made to be the same as three. Three coil parts 26 arranged in a circumfe...
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JP2021016274A |
To provide a motor provided with a brush assembly and having a structure capable of suitably suppressing noise.A housing 11 includes a peripheral wall portion 13c that surrounds a radial outside of a brush assembly 40. The brush assembly...
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JP6797385B2 |
Provided is a direct current motor that suppresses cogging torque and reduces electromagnetic oscillation. A direct current motor 101 is provided with the following: a cylindrical permanent magnet 112 that is disposed inside of a yoke ho...
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JP6787745B2 |
To provide a motor case capable of reducing a manufacturing cost and a cogging torque, preventing malfunction, and further improving a layout property, and a motor with a reduction gear.A motor with a reduction gear, comprises: a cylindr...
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JP6775842B2 |
Each of the magnet coils is configured as a concentrated winding coil with an air core including an upper base part, a lower base part, and two leg parts. The upper base part of one of the magnet coils is housed in the air core region of...
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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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JP6768177B2 |
A stator (11) is resin-formed by means of: a first mold (21) for forming an outer shape of an exterior resin (14) with a gap provided between an outer peripheral surface of yokes (13) and the first mold (21); a second mold (22) positione...
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JP6761620B2 |
To avoid contact of a plurality of connecting wires.There is provided a rotor 100 comprising: an iron core 102 that includes a plurality of salient poles; a commutator 103 that includes a plurality of terminals; and a winding 105 that is...
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JP2020145843A |
To realize reduction of cogging torque while solving insufficient effective magnetic flux in a motor device.A motor device has a pair of circular arc face parts 24a and a pair of planar parts 24b, a york 24 whose cross section is formed ...
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JP2020145902A |
To provide a motor with a speed reducer which can keep misalignment of an armature core small.A motor 1 with a speed reducer according to the invention includes: a motor part 2; a case 14; and a cover. In the motor part, a rotary shaft 3...
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JP2020115745A |
To make a motor device smaller and lighter without reducing the layout of a mounting target.A connector member 50 is made of a resin material and has a substantially L shape, and one end side of the connector member is connected to a bru...
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JP2020110024A |
To suppress reduction in a rotation speed within a range of an operating point torque under a high load by adjusting a rotation speed change with a rise of a motor temperature.A motor part M of a wiper motor 1 comprises: a stator 10 to w...
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JP6720123B2 |
To provide a permanent magnet for a motor formed from isotropic Nd-Fe-B magnetic powder and reduced in cogging torque.A permanent magnet for a motor is a permanent magnet for a cylindrical motor with four magnetic poles and is a bond mag...
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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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JP2020516210A |
To have problems such as a small starting torque, a large starting current, poor smoothness of speed adjustment, large vibration and noise, and complicated control algorithm of a conventional AC motor. A DC electric drive device installe...
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JP2020073791A |
To correspond to size and weight reduction and multi-functionalization, and to suppress the deterioration of injection performance of liquid.A housing 30 is integrally provided with a motor chamber 31a; a pump chamber 32a; each valve cha...
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JP2020072522A |
To provide a motor generating a small noise when rotating.A motor 1 is provided with: a frame 10 having a pair of flat-plate parts 11 and 12 opposite to each other, and a pair of curved parts 13 and 14 opposite to each other; two magnets...
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JP2020061858A |
To provide a motor which is easily manufactured, of which the motor characteristics can be changed by a simple configuration, and which suppresses constraint current in a high speed rotation type motor with restricted constraint current ...
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JP2020510785A |
According to the present invention, a housing in which an inflow port and a discharge port for inflowing and discharging cooling water are formed, an impeller housed inside the housing and causing the cooling water to flow in and out by ...
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JP2020058172A |
To provide a 6-pole, 9-slot and 27-segment motor in which motor characteristics can be improved by improving rectification.For one tooth, three coils are provided and distributed to a reference phase rectified in the magnetic pole center...
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JP2020058173A |
To provide an armature and an electric motor, capable of reliably obtaining desired motor characteristics and determining the entire mass with high accuracy while suppressing variations in rotation balance and weight balance.A plurality ...
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JP6674350B2 |
To provide a small-sized motor that can be used as a magnetic treatment tool, which includes a permanent magnet to function as a static magnetic field, and an armature coil to function as a dynamic magnetic field.A motor for magnetic tre...
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JP2020048354A |
To provide a rotary electric machine capable of reducing the number of components and increasing a degree of freedom in wiring layout with respect to a terminal.An electric motor includes: a switch terminal 25; and an earth terminal 26. ...
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JP2020048353A |
To provide a rotary electric machine that is inexpensive and has high assembling accuracy and a method of manufacturing the same.An electric motor includes: a rotor core 21; a shaft 3; a commutator; and a mandrel 28. The rotor core 21 in...
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JP6672894B2 |
To suppress cost increase, suppress unbalance of a magnetic field and excess currents to a brush, and also reduce resonance.In a rotary electric machine M, each of a plurality of coil parts 26 strides across three teeth 22. In each of a ...
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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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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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JP6657894B2 |
To provide a sintered magnet for a motor, capable of improving a mechanical strength, and the motor using them.An arc-shaped sintered magnet for a motor, comprises: at least a pair of surface regions which is positioned on both sides of ...
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