摘要:
Heat discharging property of the stator coil end is improved effectively in a rotating electric machine. A motor as the rotating electric machine includes a stator and a rotor. The stator includes a stator core and resin mold coil ends provided on both axial ends thereof. Column-shaped projections projecting in the axial direction are provided on axial side surfaces of resin mold coil ends at a plurality of positions. Cooling oil supplied from above the resin mold coil ends effectively cools the resin mold coil ends.
摘要:
A method of producing a holographic optical element which is capable of imparting complex corrections to the holographic optical element and of effecting the exposure using a short optical path permitting little disturbance to be infiltrated. A correction holographic optical element 13 for correcting the characteristics of the holographic optical element is disposed in at least one of the optical paths of an object beam 35 and a reference beam 36 that fall on a photosensitive material 11. The object beam 35 may be one obtained by reflecting the reference beam 36 by a reflection-type holographic optical element such as a reflection-type master holographic optical element 12. In the case of a holographic optical element used for the head-up display, the correction holographic optical element 13 may be given characteristics for correcting the curvature of the windshield or characteristics for correcting color aberration.
摘要:
In a combustion heater, at the time of ignition, a fuel supply amount is increased in a stepwise fashion. On the other hand, at the time of extinction, the fuel supply amount is decreased in a stepwise fashion. The fuel supply amount is increased stepwise using different fuel increasing amounts or different fuel increasing periods, both depending on heat quantities generated by a burner at respective fuel increasing time points. At the time of extinction, the fuel supply amount and an air supply amount are both reduced to given values, respectively, and held at the given values for a given time period. After lapse of the given time period, the fuel supply amount is reduced to zero, while the air supply amount is held at the given value for a further given time period. The air supply amount is changed with a given time delay relative to a change of the fuel supply amount. The time delay may be adjusted depending on a temperature in the burner.
摘要:
Apparatus for controlling a plurality of power seats in a vehicle includes a plurality of power seats, each having adjusting mechanisms for configuring the power seat in a number of different operational states. Operational state detectors then detect the operational state of each power seat. A switching device is provided for adjusting the adjustment mechanisms of the power seats to a desired operational state. Control apparatus is responsive to signals output from the operation state detection devices and the switching device for controlling the adjustment mechanisms of the power seats. The control apparatus causes each power seat to reach its desired operational state in response to the detected operational state of that seat and other power seats to prevent interference among the plurality of moving power seats.
摘要:
A power supply device includes a refrigeration cycle having a compressor, a motor, an inverter-integrated charger, a heat exchanger unit, and a controller having a determining unit. The inverter-integrated charger selectively controls operation of the motor using electrical power of a battery and charge of the battery with external power. The heat exchanger unit cools a cooling-necessary part of the inverter-integrated charger using refrigerant in the refrigeration cycle. When the vehicle is stopped and the battery is charged with the external power, the controller makes the inverter-integrated charger serve as: a charger to perform the charge of the battery; or an inverter to control the operation of the motor, thereby driving the compressor, upon determination that the cooling-necessary part needs to be cooled by the determining unit.
摘要:
A rotor core has permanent magnets. Magnetic flux of the permanent magnet of an even-numbered rotor magnetic pole part is guided in an axial direction by an axial magnetic path member. Magnetic flux of the permanent magnet of an odd-numbered rotor magnetic pole part is guided into a soft magnetic inner cylindrical part. The axial end faces of the inner cylindrical part and the axial magnetic path member protrude from the rotor core in the axial direction and face a stationary magnetic path member with a small gap therebetween. The amount of magnetic flux of the magnet, which the permanent magnet applies to a stator core is adjusted by an excitation current of an excitation coil wound on the stationary magnetic path member.
摘要:
A semiconductor device includes: a base member; a solder layer; and a semiconductor chip disposed on the base member through the solder layer. The chip has an in-plane temperature distribution when the chip is operated. The chip has an allowable maximum temperature as a temperature limit of operation. The in-plane temperature distribution of the chip provides a temperature of the chip at each position of a surface of the chip. The temperature margin at each position is obtained by subtracting the temperature of the chip from the allowable maximum temperature. The solder layer has an allowable maximum diameter of a void at each position, the void being disposed in the solder layer. The allowable maximum diameter of the void at each position becomes larger as the temperature margin at the position becomes larger.
摘要:
A catalytic combustion type heater set so as to reduce the exhaust emission at the time of ignition and the time of extinguishment by, at the time of ignition, providing a precombustion period and making the amounts of the fuel and air fed larger than the air-fuel ratio of the steady combustion period to prevent incomplete combustion and by, at the time of extinguishment, stopping the feeding of fuel and feeding only air in an amount lower than that before the fuel stops being fed so as to completely burn the remaining fuel, then feeding purging air.
摘要:
A seat belt system including: a seat belt device including at least one seat belt and at least one seat belt drive device thereof; two electrodes; a heart beat calculating circuit for receiving signals detected at the electrodes and calculating a heart beat in response to signals from the electrodes; and a control circuit for outputting a control signal to the seat belt drive device to wind or unwind the seat belt in response to the heart beat signal from the heart beat calculating circuit.
摘要:
A method of manufacturing an electric rotating machine having a stator that includes a stator core having slots formed at an inner periphery thereof, and a stator winding constituted by conductive wires wound on the slots. The stator winding includes in-slot portions accommodated in the slots and turn portions each connecting each adjacent two of the in-slot portions outside the slots. The stator core includes a core member having at least three tooth portions extending in a radial direction of the stator core and a core back portion integrally connecting the tooth portions at a radially end side thereof. The core member is configured such that each of the first tooth portions folded toward the core back portion is capable of unfolding to extend between a corresponding adjacent two of the in-slot portions when the core member is at a predetermined axial position with respect to the stator winding.