Patent application number | Description | Published |
20090160285 | Self-Starting Type Permanent Magnet Synchronous Motor and a Compressor Using the Same - A self-starting type permanent magnet synchronous motor comprises a stator and a rotor. The rotor comprises a rotor core having a plurality of slots provided in an outer periphery thereof and a cage winding comprising conductive bars embedded in the slots and conductive end rings that short-circuit the conductive bars on both end faces of the bars in an axial direction thereof. The rotor core comprises at least one magnet insertion hole arranged on an inner peripheral side from the slots, and at least one permanent magnet embedded in the at least one magnet insertion hole. When a pole center axis is denoted as a d-axis and an axis deviating from the pole center axis by an electrical angle 90° is denoted as a q-axis, a flux content generated by the cage winding during start-up becomes maximal in the vicinity of and on one of the d-axis and the q-axis. | 06-25-2009 |
20090200885 | Self starting permanent magnet synchronous motor - The present invention provides a permanent magnet that a fluorine compound is formed on the surfaces of Fe-based magnetic particles, and a recoil permeability is determined in a range of 1.05 to 1.30 by controlling an iron concentration in the fluorine compound to a range of 1 to 50% to reduce a loss due to magnetization rotation, thereby remedying reduction of a residual magnetic flux density and degradation of steady-state characteristics. | 08-13-2009 |
20110030419 | SELF-STARTING PERMANENT MAGNET SYNCHRONOUS MOTOR AND COMPRESSOR AND REFRIGERATION CYCLE USING THE SAME - There is provided a self-starting permanent magnet synchronous motor in which a center axis of magnetic poles of a rotor is assumed to be a d axis, an axis deviated from the magnetic pole center axis by an electric angle of 90 degrees is assumed to be a q axis, at least two or more starting bars which are arranged near the d axis are arranged on a bore side of the bars near the q axis and are arranged in parallel with the q axis, so that a stable starting torque can be generated irrespective of a generating position of a stator magnetic flux which changes due to applying timing of a power source and a phase of a voltage, and a vibration/noises at the time of a stationary operation can be reduced. | 02-10-2011 |
20120091850 | ROTATING ELECTRIC MACHINE - A rotor slot is asymmetrically shaped with respect to a straight line drawn from the central axis of the rotation of the rotor in a radial direction, and has a slot opening, the circumferential width of which is smaller than that of the rotor slot, at the top of the rotor slot, so that a loss generated in the rotor due to a carrier harmonic component can be reduced and the power factor can be improved, enabling a current generated in an armature winding to be suppressed and thereby improving efficiency in a rated operation. | 04-19-2012 |
20130127280 | ELECTRIC ROTATING MACHINE AND ELECTRIC VEHICLE USING THE SAME - An electric rotating machine that can improve efficiency in the high-speed operation state thereof and improve the efficiency of an electric vehicle in the high-speed operation state thereof by the use of the electric rotating machine. An electric rotating machine includes a stator and a rotor. The stator has a stator core with slots and stator windings. The rotor includes a rotor core and a plurality of first permanent magnets and of second permanent magnets. The rotor core is provided with laminated electromagnetic steel sheets and formed with a plurality of magnetic poles arranged in a circumferential direction. The plurality of first and second permanent magnets form the plurality of corresponding magnetic poles. The first permanent magnet and the second permanent magnet for forming each of the magnetic poles of the rotor are different from each other in recoil permeability. | 05-23-2013 |
Patent application number | Description | Published |
20100231078 | Rotor of Permanent Magnet Rotating Electric Machine - A permanent magnet rotating electric machine has a stator provided with a plurality of windings, and a rotor in which magnets are disposed in slots formed in a rotor core along an outer circumference thereof. The rotor core is fixed on a rotary shaft rotating inside the stator, and one magnetic pole is constituted by each group of three or more of the magnets. A total angle occupied by the group of magnets constituting one magnetic pole is in the range of 150 to 165 degrees in terms of an electrical angle. | 09-16-2010 |
20100244609 | Permanent Magnet Type Electric Rotary Machine And Compressor Using The Same - A permanent magnet type electric rotary machine includes a stator including a stator core having teeth and slots, and a rotor provided with permanent magnets as magnet poles in a rotor core. A pole core portion which between each of the permanent magnets and an outer surface of the rotor core is provided with a plurality of pole slits. A region of the pole core portion is defined by concave portions provided on q-axes to be interpolars on both sides of the pole core portion, and thereby configured that a gap between the outer surface on the q-axis of the rotor core and an inner surface of the stator core is larger than a gap between the outer surface on the d-axis of the pole core portion and the inner surface of the stator, so that magnetic fluxes from the permanent magnet pass through the pole core portion concentrately. | 09-30-2010 |
20110020161 | Displacement Type Compressor Having a Self-Start Synchronous Motor and Start Load Reducing Means - In order to make a displacement type compressor be able to reliably start without increasing an outside diameter dimension of the compressor while using a self-start synchronous motor having high energy efficiency, the displacement type compressor according to the invention includes the self-start synchronous motor which starts as an induction-motor and performs synchronous operation by performing synchronization pull-in almost at a synchronous rotational frequency, a compression part having a compression chamber which compresses a working fluid, and a hermetic container which houses the self-start synchronous motor and the compression part. The displacement type compressor is provided with a start load reducing means which reduces a load of the compression part at startup and is placed at the compression part in the hermetic container. | 01-27-2011 |
Patent application number | Description | Published |
20080278017 | Rotor of Permanent Magnet Rotating Electric Machine - A permanent magnet rotating electric machine has a stator provided with a plurality of windings, and a rotor in which magnets are disposed in slots formed in a rotor core along an outer circumference thereof. The rotor core is fixed on a rotary shaft rotating inside the stator, and one magnetic pole is constituted by each group of three or more of the magnets. A total angle occupied by the group of magnets constituting one magnetic pole is in the range of 150 to 165 degrees in terms of an electrical angle. | 11-13-2008 |
20100215966 | TRANSPARENT LAMINATE AND PROCESS FOR PRODUCING THE SAME - It is an object of the present invention to solve problems in production techniques for a transparent laminate employing a transparent resin film, and problems in production techniques for a transparent laminate produced by injecting a resin composition having a low viscosity. | 08-26-2010 |
20130004735 | TRANSPARENT LAMINATE AND PROCESS FOR PRODUCING THE SAME - A transparent laminate is produced by preparing a pair of transparent substrates, forming a sealing portion along the periphery on one of the transparent substrates for sealing a curable resin composition, supplying the curable resin composition in a region on the transparent substrate surrounded by the sealing portion, overlaying the other transparent substrate on the supplied curable resin composition in a reduced pressure atmosphere so that the curable resin composition is sealed as it is sandwiched between the pair of transparent substrates, and subsequently curing the curable resin composition in an atmosphere having a higher pressure than the pressure of the atmosphere in which the composition is sandwiched, to produce the transparent laminate. | 01-03-2013 |
Patent application number | Description | Published |
20090010776 | DISPLACEMENT TYPE COMPRESSOR HAVING A SELF-START SYNCHRONOUS MOTOR AND START LOAD REDUCING MEANS - In order to make a displacement type compressor be able to reliably start without increasing an outside diameter dimension of the compressor while using a self-start synchronous motor having high energy efficiency, the displacement type compressor according to the invention includes the self-start synchronous motor which starts as an induction-motor and performs synchronous operation by performing synchronization pull-in almost at a synchronous rotational frequency, a compression part having a compression chamber which compresses a working fluid, and a hermetic container which houses the self-start synchronous motor and the compression part. The displacement type compressor is provided with a start load reducing means which reduces a load of the compression part at startup and is placed at the compression part in the hermetic container. | 01-08-2009 |
20140049134 | INDUCTION ELECTRICAL ROTATING MACHINE - Induction electrical rotating machine includes a stator which has plural stator slots | 02-20-2014 |
20140167556 | ELECTRIC ROTATING MACHINE - Disclosed is an electric rotating machine that includes a stator and a rotor. The stator includes a housing and a cylindrical stator core secured to the housing by shrinkage fitting. The rotor is rotatably disposed inside the stator. The stator core is formed of two or more circumferentially split cores. Spilt surfaces of the split cores are shaped in such a manner that the amount of distortion caused on the split surfaces on the outside diameter side by the shrinkage fitting is greater than the amount of distortion caused on the split surfaces on the inside diameter side by the shrinkage fitting. | 06-19-2014 |
20140246944 | ROTATING ELECTRICAL MACHINE AND ELECTRIC AUTOMOTIVE VEHICLE - A rotating electrical machine includes a stator having a stator core having a plurality of slots formed therein and a plurality of stator coils to be accommodated in the respective slots, and a rotor arranged on an inner peripheral side of the stator. The plurality of slots include a first slot and a second slot, and when a first ratio between the number of coils having the same phase to be accommodated within the first slot and the number of the plurality of coils exceeds a predetermined ratio, and a second ratio between the number of coils having the same phase to be accommodated in the second slot and the number of the plurality of coils is the predetermined ratio or lower, a width of a first slot opening that the first slot has so as to face the rotor side is 0 or wider, and is smaller than a width of a second slot opening that the second slot has so as to face the rotor side. | 09-04-2014 |
Patent application number | Description | Published |
20110217956 | ELECTRONIC APPARATUS, SCREEN INFORMATION OUTPUT METHOD AND COMPUTER-READABLE STORAGE MEDIUM - An electronic apparatus has a storage part to store a plurality of screen information, including incoming call screen information, a display part to display the screen information, and an output control part to output to an outside of the electronic apparatus arbitrary screen information that is to be output to the outside, of the screen information stored in the storage part, and to display the arbitrary screen information on the display part, when an external output function is set to an ON state. The output control part continues outputting the arbitrary screen information to the outside and displays on the display part the incoming screen information stored in the storage part, when an incoming call is received in a state where the external output function is set to the ON state. | 09-08-2011 |
20130246949 | DISPLAY CONTROL DEVICE, MOBILE TERMINAL DEVICE, DISPLAY CONTROL METHOD, AND COMPUTER READABLE STORAGE MEDIUM - In a display control device, a display setting unit creates, according to an operation input to an operation unit, a plurality of display settings according respectively to a plurality of moving states and stores the same in a setting information storage unit, a moving state determination unit determines a moving state based on a measurement value measured by a sensor, and a display control unit changes a screen display on a display according to the moving state by displaying a screen on the display according to any one display setting corresponding to the determination result of the moving state determination unit, among a plurality of display settings stored in the setting information storage unit. | 09-19-2013 |