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JP5311253B2 |
To provide a spindle driving device of a machine tool capable of enlarging the range of torque and the rotational speed by multi-stage change while reducing the weight and the size of the device itself. In the spindle driving device 1 of...
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JP5299416B2 |
This multiple rotor-type electric motor is provided with: a stator which comprises a stator winding that forms a stator rotating magnetic field, and is affixed to a case: a composite rotor which comprises a rotating field magnet part tha...
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JP5290240B2 |
To provide a rotating device which rotates stably when a rotor rotates at a high speed and rotates at a relatively high speed by rotating force of an inductive motor with excellent reliability, and a turbo molecular pump. The rotating de...
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JP2013176233A |
To provide an induction motor having high torque, an electric drive system, and an electric vehicle including the same.An induction motor includes a rotor 130 having a cage conductor comprising many slots provided in a rotor iron core 13...
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JP2013162535A |
To provide a three-phase motor including a stator with four slots into which three-phase winding is done.A three-phase motor comprises: a stator core 1 on the inner periphery of which four teeth 1a-1d are formed in the circumferential di...
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JP5260917B2 |
To provide a three-phase AC motor system capable of suppressing the generation of lower-order harmonics and carrier harmonics and of inhibiting generation of torque pulsation, with high efficiency. This three-phase AC motor system includ...
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JP5243210B2 |
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JP5241131B2 |
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JP5235740B2 |
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JP5218263B2 |
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JP2013524767A |
In one embodiment, a rotor for an induction motor comprises a punching assembly, a plurality of conductive bars, and an end-ring. The plurality of conductive bars may be substantially parallel to an axis of the rotor and connected to the...
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JP5209658B2 |
An object of the present invention is to provide a squirrel-cage induction motor with high efficiency. In a squirrel-cage induction motor including a stator in which stator windings are wound in a number of stator slots arranged at inter...
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JP5197962B2 |
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JP2013090426A |
To provide a rotor of an induction motor in which component ratio and arrangement order of a magnetic material and a conductive material can be flexibly adjusted by constituting the rotor by preparing the magnetic material and the conduc...
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JP2013090447A |
To drive an induction motor without any hindrance even in a high-temperature environment.The induction motor and a rotor of the induction motor are so constituted as to include a short-circuit ring, a first reinforcement member, and a se...
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JP5190131B2 |
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JP5179949B2 |
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JP5175126B2 |
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JP2013051881A |
To achieve improved efficiency by suppressing generation of flux saturation of a rotor core.The induction motor 100 includes a rotor 11 that is a squirrel-cage secondary conductor formed by filling a rotor slot 13 with a non-magnetic and...
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JP5159807B2 |
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JP5156223B2 |
In a rotary electric machine, for enhancing the reliability and reducing the size thereof, the rotary electric machine comprises a stator 2, and a rotor 5 opposed to the stator and adapted to be rotated around a shaft 6, the rotor having...
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JP5155423B2 |
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JP5155420B2 |
A squirrel-cage rotor of an induction motor and a production method thereof, wherein locating of the brazing material is not necessary in order to reduce manhours for brazing, and a bar is easily connected to an end ring. Before assembli...
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JP5157623B2 |
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JP5143166B2 |
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JP5135481B2 |
An electric motor, comprising a plurality of iron cores arranged on a circle; a plurality of coils wound with an electric wire on the plurality of iron cores, the electric wire including a material having a higher volume resistivity than...
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JP5129518B2 |
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JP3180993U |
Exemplary embodiments of the present invention relate to an induction motor including a stator having a circular cross-section and an inner passage having a longitudinal axis defining a bore, a solid core steel rotor having a circular cr...
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JP2013013250A |
To provide a three-phase induction motor whose degree of freedom of design is widened and which can reduce centrifugal electromagnetic force.The three-phase induction motor includes a plurality of stator slots 11 which are provided to a ...
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JP2013005697A |
To solve the problem of the rotor conductor and the short circuit ring structure in an induction motor that the copper loss increases due to a large bore diameter of the short circuit ring structure, and thereby the efficiency decreases....
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JP2013005462A |
To provide a squirrel-cage rotor whose slit width is made equivalently narrow to suppress a starting current and reduce a secondary copper loss while securing a maximum torque thereof.A double squirrel-cage rotor 91 comprises a rotor cor...
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JP2012257439A |
To provide a cage-type rotor for suppressing a startup current of an induction motor, reducing secondary copper loss during an operation and reducing harmonic loss without interrupting the flow of a magnetic flux of a rotor core.A cage-t...
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JP2012253998A |
To provide an induction motor which prevents expansion of rotor elements to prevent them from coming into contact with a stator.The rotor includes first laminations 216a and second laminations 216b having slots 217 to accept rotor bars 2...
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JP2012249376A |
To provide a pole-change type single phase induction motor easy to start, improving its operation efficiency, and having less noise and vibration.In a pole-change type single phase induction motor, an auxiliary coil consisting of a first...
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JP2012235572A |
To provide a capacitor motor having a speed control function with a simple processing of jumper wire.Plural main speed control winding units 20a are disposed in a circular shape to form a group of main speed control winding units 20b and...
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JP5084980B1 |
A double-cage rotor having a rotor core that is constructed by laminating multiple laminated plates in a skewed manner, said laminated plate having multiple double slots that are provided on the periphery in the circumferential direction...
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JP5079021B2 |
The present invention is directed to provide an induction motor having an ideal efficiency at the normal operation time, while obtaining a high locked-rotor torque without having to use a special drive circuit. According to the induction...
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JP5080664B2 |
A squirrel-cage rotor includes a rotor core formed having a plurality of slots, a plurality of conductor bars inserted into the slots respectively and made of copper or copper alloy, two conductor end rings joined to the plurality of con...
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JP2012529265A |
A rotor for use in an electrical motor which includes an anti-expansion ring centrally mounted on the rotor to restrict the extent rotor elements mounted on a rotatable shaft may expand outward due to centrifugal forces generated when th...
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JP5072805B2 |
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JP2012222839A |
To provide a starter of a sealed compressor of low cost in which power consumption is reduced, with higher reliability.A resistor 121, whose resistance value is equivalent to a positive thermistor at a normal temperature, is employed ins...
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JP5063090B2 |
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JP2012210070A |
To provide a rotor which suppress reduction in manufacturing efficiency and performance deterioration in a motor and has less variation in performance, and to provide a method for manufacturing the rotor.The rotor includes: end rings pro...
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JP5059314B2 |
A single-phase induction motor comprises a stator having a stator coil; an induction cage rotor rotatably inserted into a receiving groove of the stator, having a rotation shaft at a center thereof, having a plurality of first conductor ...
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JP2012200087A |
To provide an induction motor which can effectively cool a stator, a rotor and an induction motor body without enlarging the rotor and the induction motor body and to provide the rotor used in the induction motor.The induction motor 1 in...
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JP5040300B2 |
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JP5041196B2 |
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JP5042365B2 |
An induction motor includes a stator having a winding to be inserted to a plurality of stator slots formed along an inner circumferential edge of a stator iron core; and a rotor placed inside of the stator via a gap, the rotor includes a...
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JP2012187003A |
To provide a low-cost induction motor that reduces power supply capacity and prevents leakage of melted metal to an outer circumferential wall surface of a rotor core in a die-casting process.An induction motor according to the invention...
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JP2012522485A |
The present invention relates to a motor that acts both as a synchronous motor and as an induction motor, and that comprises a stator (100) having coil windings, a rotor (200), where said rotor is a rotor with magnets (300, 310, 320, 330...
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