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JP2005176487A |
To obtain a motor capable of mechanically protecting a capacitor element with a simple outer covering and also capable of securing high moisture resistant performance in which a capacitor can be efficiently built in the motor without enl...
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JP3663588B2 |
PURPOSE: To provide an axial flow cooling arrangement for cooling with air, a laminate and the coil winding of a stator and/or a rotor of an electrical rotating machine. CONSTITUTION: An opening 105 is formed at a stator teeth 101 of an ...
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JP2005518176A |
The induction motor includes stator pole having switching pattern which is excited by excitation voltage which is sine wave pulse amplitude modulated or sine wave pulse width modulated within the frequency range of voice and ultrasonic s...
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JP2005160219A |
To provide a motor that facilitates output adjustment and does not need to install a part for the output adjustment outside a motor frame.Main coils 23, 23, auxiliary coils 24, 24 and output adjustment coils 25, 25 are arranged at a stat...
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JP3661247B2 |
To reduce the size and weight of a rotary machine by allowing a power supply frequency at the maximum number of rotations out of the numbers of rotations which give the maximum torque when a car is running at a low speed, the maximum pha...
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JP3658483B2 |
To easily provide a motor having high torque and high efficiency by sufficiently inhibiting secondary resistance loss by simply surely forming a cage-type winding, even when copper is used for the cage-type winding. In a rotor, a conduct...
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JP3652083B2 |
To enable open loop control of numerical operation and prevent the decline in a control precision caused by noises, by a method, wherein a power supply voltage which drives a servomotor in accordance with a current command is detected to...
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JP3650351B2 |
To obtain a squirrel-cage motor rotor which can relieve stresses produced in rotor bars by thermal expansion and is small in size and light in weight, and to provide a squirrel-cage motor employing the rotor. This squirrel-cage motor rot...
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JP2005124349A |
To provide a rotor wherein the transmission of deformation that occurs when a laminated core is shrink-fit to a rotating shaft is reduced to prevent the shaft from being bent, and no vibration nor noise is produced while a rotary machine...
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JP2005102483A |
To provide a rotor for an induction motor by which a weight increase and size enlargement in the axial direction can be prevented, and a motor-driven induction machine.End rings 6 are arranged to both ends of a core 5 so that each storag...
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JP2005094996A |
To provide a magnetizing device for an induction motor by which the efficiency of a motor can be improved by increasing the magnetic force of a magnet by increasing a magnetizing area of a magnetic body by simultaneously magnetizing the ...
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JP3635744B2 |
To obtain an AC three-phase generator in which electromagnetic noise is reduced and the number of slots in the stator coil 12 is decreased along with the number of ends of winding thereof. The stator coil 12 of an AC three-phase generato...
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JP3635281B2 |
To provide a method and unit for electromagnetic induction driving in which a driver is rotated or moved linearly according to a principle different from that of three-phase or single phase induction motor. The electromagnetic induction ...
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JP3633232B2 |
To enhance the efficiency of a motor by preventing eddy current from occurring. This motor has a rotor 37, a stator 38 arranged at a specified interval from the rotor 37, and a coil 139 wound on the stator 38, and the rotor 37 is equippe...
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JP3630991B2 |
To make the best use of a space in the height direction and, at the same time, to sharply improve the value of the proportionality constant which decides the relation between torque and copper losses by combinedly using toroidal winding ...
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JP2005073329A |
To provide a highly reliable starter of a single-phase induction motor in which grasping force of a socket terminal is maintained over a long term.Connection pin holding part 22e of a socket terminal 22A is divided into a first part 22g ...
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JP2005073330A |
To reduce power consumption extremely of a positive characteristics thermistor for starting connected in series with the auxiliary winding of a single-phase induction motor.When a starting current flows through an auxiliary winding S, a ...
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JP3628156B2 |
To make axial thrust generated at a rotary shaft opposed to axial load, and retain the axial position of the rotary shaft at a prescribed target position without using a thrust bearing, by fixing induction type rotors involving conductiv...
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JP2005057856A |
To obtain a motor which prevents a motor winding from burning due to incorrect wire connection, etc. by noting that positive temperature coefficient thermistor has low cost and small size and an impedance is increased by self-heating.The...
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JP2005057897A |
To offer an inexpensive induction motor which can prevent a drop in torque and is low-vibration and low-noise, by enabling it to smooth the switching of polarity thereby suppressing the rotational irregularity of a rotor thanks to its co...
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JP3624130B2 |
To prevent generation of a torque impulse resulting from a through- hole even when such through-hole is provided. A rotor iron core 22 forming a rotor of induction motor is provided with many through-holes 29, 30 in order to ventilate th...
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JP2005045992A |
To provide a drive circuit for improving the start of a hybrid induction motor and a start-improving method, by minimizing the required voltage and supplying a high starting current at start-up, and by performing the operation at an adeq...
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JP2005045877A |
To provide a synchronous induction motor in which pull in can be carried out smoothly without using an inverter, or the like, by generating a sufficient induction torque even from a single phase power supply for home use.The synchronous ...
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JP2005020841A |
To provide a rotor for an induction motor along with its manufacturing method in which an end ring is formed in a short time, and a cost burden is reduced.The rotor for an induction motor comprises a rotor core 11 provided with a plurali...
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JP2005012964A |
To provide an induction-motor capable of reducing oscillation and noise by sliding torsion resonance and preventing the idle rotation of a rotor.This rotor 1 is formed by layering steel plates 2, and has a conductive body 3 formed by mol...
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JP2005013000A |
To provide a shading coil type induction motor that is low-priced, light and small, by devising a structure of a stator of the shading coil type induction motor, keeping the distance of insulation, and reducing the overhang of slot insul...
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JP3608846B2 |
To detect electrical defects tend to be generated especially at a conductive bar when the conductive part of a squirrel-cage rotor is cast with worker's visual inspection. A defect detector 10 is made up of a coil 32 wound around an iron...
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JP2005006488A |
To provide a three-phase motor comprising a stator of which the protrusion dimensions of coil ends of coils of various phases are uniformized as much as possible so that the protrusion dimension of the entire coil end of the three-phase ...
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JP2005006400A |
To provide a motor drive mechanism capable of varying the number of poles or phases of a motor easily.The motor drive mechanism excites the coil of each phase of a motor by supplying a specified current in response to an AC polyphase sig...
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JP3607697B2 |
The motor has a stator (20), permanent magnet primary and secondary rotors (50,30) including a rotational shaft (40). The primary rotor (50) is installed in the rotor receiving part and rotated by the magnetic field formed in stator coil...
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JP3607141B2 |
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JP2004364434A |
To perform output adjustment by eliminating the need for preparing a large number of coils each performing the output adjustment of a motor by changing the total winding number of the coil in a main circuit.This motor is operated in a st...
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JP3604276B2 |
To monitor by an electric sensing means easily and surely the abrasion advancing state of a slide bearing of such an induction motor as a canned motor having the mechanism for supporting its rotor by the slide bearing. In an induction mo...
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JP3604478B2 |
To widen a range of allowable rpm in the output of a motor by cou pling a main axis with an output axis of a sample motor and incorporating a reducing device integrally in the interior of a rocking casing for measuring torque. A large ge...
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JP3600481B2 |
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JP3600781B2 |
A protective device (3) for a hermetic type electromotively driven compressor (1a) includes a protector assembly (30) having a housing (32) with an electric current fuse (34) which detects a predetermined over-current. The housing (32) c...
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JP3602852B2 |
With the object of providing a high-performance induction motor and rotor thereof capable of increasing efficiency and reducing noise and stray loss by setting dimensions of slot apertures provided at a rotor core within an appropriate r...
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JP2004320918A |
To provide a capacitor start induction motor which can effectively suppress electromagnetic oscillations and electromagnetic noises by reducing tertiary higher harmonics of stator magnetmotive force.The capacitor start induction motor wi...
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JP3588488B2 |
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JP2004312984A |
To provide an inexpensive axial-gap type motor for which a distance between gap surfaces can be easily adjusted while suppressing the wobble of a rotor.In a stator 2, bearing sections composed of radial bearings 5 are arranged, and inner...
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JP2004304930A |
To save a machining process of the end surface of a rotor bar, and to reduce the consumption of an expensive silver solder or the like, by making good fillet over an entire range around the base of the rotor bar, and by making it easy to...
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JP3576106B2 |
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JP2004282934A |
To provide a driving motor that can improve torque performance at starting without complicating a structure and lowering economical efficiency.The driving motor comprises a stator winding 6 concentratedly wound to a stator core 3, and ro...
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JP2004274998A |
To provide the single-phase induction motor realizing low-noise operation, by reducing a current loss so as to enhance efficiency of the motor.The single-phase induction motor is constituted by having a stator 120 winding a plurality of ...
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JP2004260976A |
To provide an induction motor having a structure capable of curtailing force in the thrust direction of a rotor caused by skewing and to curtail vibration and noise.A rotor iron core 5 and a stator iron core 2 are formed by laminating ma...
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JP2004254356A |
To improve an output torque while the deterioration of an electric motor is prevented.The electric motor 100 is carried in a vehicle and is driven by current from an inverter. The electric motor 100 includes a rotor 110, oppositely to th...
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JP2004254433A |
To provide a manufacture method for a cage rotor, which can reduce the defects of a brazing joint between a ring and a bar.This is a manufacture method for a cage rotor which brazes the space between a through-hole 7 of a ring 2 and a ba...
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JP2004254445A |
To provide a motor arranged such that required output characteristics can be attained easily.The motor body 1 is provided with two independent windings U1-W1 and U2-W2 for each phase of U, V, W. Connecting parts A-I of these windings and...
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JP3564252B2 |
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JP3562287B2 |
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