Abstract:
A high intensity lighting system comprises a plurality of high intensity discharge lamps electrically connected to a polyphase alternator and a prime mover mechanically connected to the alternator. An inherent impedance characteristic of the alternator permits the lamps to be reliably started and energized without any separate ballast or comparable impedance element. The alternator comprises a stator having teeth extending from a backiron. The teeth consist of the alternator phases, and the coils encircle the respective teeth of each pair and are wound in opposite sense and connected in series. The machine is preferably an axial airgap device wherein the stator assembly has a magnetic core made from low loss, high frequency material. A high pole count permits the electrical device to operate at high commutating frequencies, with high efficiency, high power density and improved performance characteristics. Low-loss materials incorporated by the device include amorphous metals, nanocrystalline metals, optimized Si-Fe alloys, grain-oriented Fe-based materials or non-grain-oriented Fe-based materials.
Abstract:
PROBLEM TO BE SOLVED: To provide a high-efficiency device by making a device such as electric motor, generator, or regenerative electric motor include a rotor configuration, a stator configuration, and each electromagnet that is dynamically energizable and deenergizable, including an amorphous metal magnetic core. SOLUTION: The stator configuration has a dielectric electromagnet housing, and at least one energizable electromagnet assembly that includes the overall amorphous metal magnetic core. The overall amorphous metal magnetic core is constituted of a plurality of individually formed amorphous metal magnetic core pieces. Each of the dielectric electromagnet housing has a magnetic core piece opening that is formed in the electromagnet housing and forms the overall amorphous metal magnetic core, by holding each individually formed amorphous metal magnetic core piece, at respective position adjacent to each other. The device further includes a control configuration that variably controls the energization and deenergization of each electromagnet, by using arbitrary combinations of a plurality of energizing parameters and a plurality of deenergizing parameters, in order to control the speed, efficiency, torque, and power of the device. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To enable a formed electromechanical component to have attractive soft magnetic properties, including soft magnetic low core loss, which render the electromechanical component useful as a component in electric motors and generators and static inductive devices operable at high excitation frequencies.SOLUTION: An electromagnetic component is formed from a pre-form comprising layers 10 of soft magnetic metal ribbon. Adhesive is applied to permeate the pre-form and is then cured. The bonded pre-form is placed within a milling assembly that supports and constrains the ribbon layers 10 during a milling operation used to process the pre-form into an electromagnetic component shape. Optionally, the shape is thermally processed.
Abstract:
PROBLEM TO BE SOLVED: To provide a method and a constitution to minimize stress to an amorphous-metallic core in an electric motor, a generator or a recycled motor. SOLUTION: With respect to the rotor and the stator of an electric motor, a generator, and a recycled motor; the stator has a dielectric magnet housing, and at least one electromagnet assembly including a totally amorphous-metal magnetic core capable of generating a momentum. The totally amorphous-metal magnetic core is formed of a plurality of independently formed amorphous-metal magnetic pieces. The dielectric electromagnet housing has a magnetic core-piece opening formed in the magnet housing to constitute the totally amorphous-metal magnetic core, by holding the independently formed amorphous-metal magnetic pieces in a mutually adjoining position. Further, the device is equipped with a controller capable of variably controlling generation and damping of the momentum in the motor, by means of arbitrary combinations of a plurality of generating and damping parameters of the momentum in order to control the speed, efficiency, torque and power of the device. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a configuration for minimizing stress to the core of an amorphous metal in an electric motor, or the like. SOLUTION: A stator configuration comprises a dielectric electromagnetic housing and at least one electromagnetic assembly that includes an entire amorphous metal core and can be energized. The entire amorphous metal core is composed of a plurality of amorphous metal core pieces formed individually. The dielectric electromagnetic housing has a core piece opening holding the amorphous metal core pieces formed individually at mutually adjacent positions to form the entire amorphous metal core. The device includes a control configuration capable of controlling energization and deenergization in an electromagnet variably using an arbitrary combination of a plurality of energization and deenergization parameters to control speed, efficiency, torque, and power. COPYRIGHT: (C)2008,JPO&INPIT