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JP2007503199A |
An electric motor ( 10 ) comprises a stator ( 20 ) having a primary winding and a rotor ( 130 a,b) arranged to rotate in the stator ( 20 ). The rotor comprises a shaft ( 160 ), a first magnetic rotor component ( 140 ) and a second magnet...
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JP3880692B2 |
To provide a rotor through which a motor small in secondary resistance loss and high in torque and high in efficiency can be obtained. This rotor 5 is arranged so as to form an end ring integrated type of cage winding, by charging the va...
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JP2006353090A |
To provide an electric motor equipped with a device for preventing reverse rotation adapted to prevent the reverse rotation of an electric motor, and to induce only normal rotation.An electric motor equipped with a device for preventing ...
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JP2006353077A |
To provide an induction motor whose entire size can be reduced, whose production cost can be cut, and whose efficiency can be reduced.The induction motor is made up of a stator 500 on which a plurality of winding coils 520 wound in the c...
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JP2006353089A |
To provide an induction motor that makes a counter electromotive force to be increased by reducing the ineffective portion of a winding coil, and by effectively winding the winding coil to minimize the resistance loss of the winding coil...
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JP3861894B2 |
To provide a thin type motor with a countermeasure for a failure by using an abnormal signal by the magnetic flux of a winding, without catching an accurate signal of a sensor magnet when the motor is started. A position of a magnetic sp...
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JP3860268B2 |
To reduce a quality of copper of a winding and thereby obtain a small-size and light-weight shading coil type induction motor by forming a bent section in a slot insulating paper, with a quality of projection of the slot insulating paper...
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JP3855658B2 |
An electric motor capable of achieving improvement in the cooling efficiency of the electric motor while keeping the electric motor characteristics from being deteriorated. Radial air ducts 9 for communicating axial air ducts 7 and 8 wit...
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JP3857846B2 |
To provide a capacitor motor by which a winding specification and a capacitance, so as to obtain both best torque characteristics and best electromagnetic vibration characteristics in forward/reverse rotation. A capacitor motor has a 2n-...
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JP2006320113A |
To reduce the deformation of the coil end of a full coil caused by a centrifugal force, and to make the full coil adaptable to even a high-speed large-capacity machine.A rotor coil 6 composed of the full coil continuously wound with cond...
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JP3849921B2 |
To provide a board treatment apparatus which can treat a board while the board is properly turned by using an annular motor. In a board treatment apparatus 1 which treats a board 9 while the board 9 is turned, an annular motor 12 is prov...
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JP2006304488A |
To provide an induction motor suitable for driving a liquid hydrogen pump.A resistance is increased by reducing a cross section of a squirrel-cage rotor or using a material having a large resistance for the squirrel-cage rotor. Since a t...
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JP2006296184A |
To provide a hybrid induction motor capable of enhancing the efficiency of a motor by reducing the electric current necessary for the start of a synchronous rotor, as well as easily changing the rotational speed of an induction rotor.A h...
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JP2006296065A |
To solve a problem that, in a rotor of this kind of an induction motor, an end ring of a rotor core composed of laminated electromagnetic steel plates is constituted of a plurality of protrusions in a prior art, and in this conventional ...
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JP3837707B2 |
To solve the problem that fixing and electrical connection of a capacitor of a conventional capacitor motor is very tiresome, resulting in a higher cost. The capacitor motor comprises a phase lead capacitor from which an electrical conne...
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JP3838294B2 |
To prevent the disconnection of a lead or a protection tube by pressing a bushing for fixing the bushing to a stator, and at the same time by properly fastening the switching door and body part of the bushing in a bearing bracket being m...
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JP2006271187A |
To provide a rotary electric machine capable of operating efficiently while keeping a good productivity that is an advantage of concentrated winding.A rotary electric machine includes a stator 1 in which a coil 4 is wound around a plural...
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JP2006262693A |
To provide a hybrid induction motor that is low in production cost and enables prevention of reverse rotation at power-on.The hybrid induction motor includes a housing 51; a stator 10, that is placed in the housing 51 and includes a stat...
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JP3826300B2 |
To provide a connecting device which can couple a connector connected to a three-phase power source to a first connector in the state that the second connector is not separated from the first connector. The connecting device of windings ...
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JP2006246611A |
To shorten the time of delivery when a motor starting relay incorporating a positive characteristics thermistor being used for an electric compressor and a motor starting relay incorporating a small positive characteristics thermistor an...
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JP2006230054A |
To suppress the deterioration of starting performance and the lowering of motor efficiency caused by a rotor of a motor that comprises a stator formed by laminating different two kinds or more of thin steel plates.This motor comprising t...
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JP2006230185A |
To eliminate a speed varying driving device and to suppress production cost, by widening a motor rotation speed varying range, to control the rotational speed by reducing electromagnetic vibration noise, and through phase control and win...
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JP2006230087A |
To provide a motor and a compressor therewith, capable of securing a fluid passage of lubrication oil as usual and attaining reduction in oscillation and noises.This motor is provided with a stator having a straight line cut surface at a...
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JP2006230158A |
To provide a motor starting relay which responds to either type of the motor starting relay with a positive temperature coefficient thermistor incorporated, or the starting relay in which a thermostat can be connected in series to the po...
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JP3815367B2 |
To provide a method of reconditioning a rotor of a rotary electric machine and apparatus in which old varnish can be removed and the reimpregnation of the varnish can be performed effectively, thus leading to a prolonged lifetime of the ...
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JP2006217792A |
To provide an induction motor having a function to prevent reverse rotation adapted to prevent reverse rotations of a synchronous rotor and an induction rotor during initial drive, and to simplify its construction and reduce its manufact...
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JP3809704B2 |
To obtain a simplified cage-type induction motor which is assembled easily. A cage-type induction motor has a couple of end brackets 11, 12 provided at both right and left sides, a cage-type rotor 31 supported to be freely rotatable betw...
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JP2006211824A |
To provide a compressor capable of avoiding a synchronous induction motor part from burned out or bearing from adhering, even if stepping out of synchronous speed when excessive fluctuation in feeding voltage or overload operation occurs...
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JP2006207514A |
To solve a problem that a motor operates under an operation condition at a load point out of an optimum point of the motor due to great reduction of load torque at a time of capacity change and a performance coefficient of a compressor g...
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JP2006204057A |
To provide a rotor structure of motor, capable of suppressing bending of a shaft in shrink-fitting between the shaft and the rotor of aluminum die-cast.In the rotor structure of motor, an aluminum die-cast rotor 1 is shrink-fitted in a s...
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JP3802415B2 |
To obtain a cage rotor consisting of an aluminum alloy cast having tensile strength of ≥10 kgf/mm2 at 150°C and electroconductivity of 50% IACS or higher at room temperature. The cage rotor is obtained by subjecting an aluminum alloy ...
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JP3801477B2 |
To solve the problem of a motor, having a rotor with slits, the difficulty of increasing revolution, as centrifugal force is applied to connection parts on both the ends of the slit and, if the thicknesses of the connection parts are inc...
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JP3798663B2 |
To provide an induction-type pump drive device capable of maintaining the service life of a motor by completely sealing powder material contained in high-pressure fluid. A first rotating shaft 2 comprises a magnetic flux variation means ...
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JP2006166648A |
To provide a capacitor driven induction motor which is silent with reduced magnetic sound and is efficient.A speed control coil 1 is connected in series with the same slot 5 as the auxiliary coil 4 which is connected in series to a phase...
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JP3788861B2 |
To reduce thermal stresses which are generated in a cooling pipe, by providing structure that can be easily deformed in an axial direction at the cooling pipe. An elastic body 14 is provided at a part where a cooling pipe 13 is supported...
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JP2006158018A |
To provide a squirrel-cage induction motor which can reduce a starting current at low cost and also can facilitate the balance adjustment without requiring the great design change of the motor or the circuit change on the side of a start...
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JP2006149182A |
To provide a single-phase induction motor which can realize a motor, having low noise and low vibration by solving the magneto-motive force imbalance of a stator winding, can maintain the magneto-motive force balance of the stator windin...
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JP3782730B2 |
To provide a valve switching device capable of remotely and automatically operating switching of a valve for a rotary shear oil applicator installed in a welding line. The valve switching device opens and closes a oil feeding valve 6 for...
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JP2006129603A |
To provide a wound-rotor induction motor so constructed that a partition plate can be installed without dividing its housing.The wound-rotor induction motor has slip rings 10 connected to rotor winding 3A in its housing 1 and the partiti...
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JP3775298B2 |
To solve the problem that generated magnetic flux must cross over a slit, flow of the magnetic flux is deteriorated, loss is increased and efficiency is decreased by a rotating position of a rotor, because a slit form of the conventional...
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JP3769719B2 |
To obtain insulation covering with sufficient mechanical strength and secure electrical insulation performance with simple structure in a protection device for automated compressors. A protection device 1 consists of a thermal response s...
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JP2006513679A |
The present invention relates to an A. C. electrical machine comprising: a plurality of disk-shaped annular stator elements stacked and spaced equidistantly from each other and mounted on a frame; a plurality of disk-shaped rotor element...
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JP3767908B2 |
The invention relates to an apparatus for casting a conductor of a cage rotor of an induction motor. A rotor core (13) comprising a laminated steel sheets is housed in a recess portion of a casting mold, an upper end portion thereof is h...
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JP2006512881A |
A power converter for a switched reluctance motor or a permanent magnet brushless direct current (dc) motor may include first and second partial circuits for forming multiple conduction circuits in cooperation with first and second phase...
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JP2006101623A |
To smoothly perform variable speed drive and constant speed drive by making the efficiency of an AC motor high, by making an output high, by making torque high, by reducing a size, and by suppressing the rise of a temperature.The AC moto...
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JP2006512033A |
This invention relates to an alternating current electric motor, single phase or multiphase or synchronous generator, with primary windings (main windings) and de-saturation additional windings. Each additional winding is fed through one...
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JP3762915B2 |
To provide a device for driving an induction motor and a driving method of the induction motor. Electric power is supplied from an inverter (38) to the stator winding of an AC motor (31). The inverter (38) receives command signals relate...
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JP3764375B2 |
To provide a rotor for synchronous induction motor capable of preventing the lowering of output or efficiency due to increasing magnetic resistance even if a gas venting hole is formed for using a hermetic compressor. This rotor includes...
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JP3763655B2 |
To provide an eddy current device which can increase torque which arises by generating an eddy current within an armature. In an eddy current device where a stator is equipped with a plurality of induction coils having axes Y parallel wi...
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JP2006087292A |
To provide a single-phase induction motor capable of preventing electric currents from flowing into a starting device during normal operation to block the power consumption of the starting device, and capable of obtaining power consumpti...
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