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    • 18. 发明申请
    • POWER CONVERSION APPARATUS
    • 功率转换装置
    • US20120092915A1
    • 2012-04-19
    • US13376517
    • 2009-11-26
    • Tatsuya OkudaAkihiko IwataKenji FujiwaraKikuo Izumi
    • Tatsuya OkudaAkihiko IwataKenji FujiwaraKikuo Izumi
    • H02M7/5387
    • H02M7/487H02M7/49H02M7/501
    • A power conversion apparatus including: a three-level inverter including bridge circuits each including a first semiconductor switching device and a second semiconductor switching device connected in series, the bridge circuits being connected to a positive terminal and a negative terminal of a DC power supply, and switch circuits having bidirectional characteristics and connected to respective AC output terminals of the bridge circuits which are the connection points between the first semiconductor switching devices and the second semiconductor switching devices, and to an intermediate potential point of the DC power supply; and single-phase inverters each including a plurality of semiconductor switching devices and respectively connected in series to the AC output terminals of the bridge circuits. The sum of an output voltage of the three-level inverter and output voltages of the single-phase inverters is supplied to a load.
    • 一种电力转换装置,包括:三电平逆变器,包括各自包括串联连接的第一半导体开关装置和第二半导体开关装置的桥式电路,所述桥式电路与直流电源的正极端子和负极端子连接, 和具有双向特性的开关电路,并连接到作为第一半导体开关器件和第二半导体开关器件之间的连接点的桥接电路的各个AC输出端子以及直流电源的中间电位点; 以及各自包括多个半导体开关器件并且分别串联连接到桥接电路的AC输出端子的单相逆变器。 三相逆变器的输出电压和单相逆变器的输出电压的和被提供给负载。
    • 19. 发明授权
    • Chopper table
    • 砍刀桌
    • US07628748B2
    • 2009-12-08
    • US12209297
    • 2008-09-12
    • Kenji Fujiwara
    • Kenji Fujiwara
    • B31F7/00
    • B65H45/18Y10T83/739
    • A chopper table comprises table bodies for guiding a signature transported by transport belts, and a pair of inlet guides for guiding the signature pushed in by a chopper blade. The table bodies are detachably supported on chopper frames, and the inlet guides are detachably supported on the chopper frames via brackets. The chopper table improves the returnability of the table body and inlet guide when they are removed at the time of a paper jam or replacement of the transport belt, and can easily adjust the gap of a slit between the inlet guides.
    • 切割台包括用于引导由传送带运送的签名的台体,以及用于引导被切碎刀推入的签名的一对入口引导件。 桌子主体可拆卸地支撑在斩波架上,入口引导件通过支架可拆卸地支撑在斩波器框架上。 当切纸器在卡纸或更换输送带时被拆除时,切割台提高了台体和进口导板的可回复性,并且可以容易地调节入口导向件之间的狭缝间隙。
    • 20. 发明授权
    • Ipm electric rotating machine
    • Ipm电动旋转机
    • US07482724B2
    • 2009-01-27
    • US10588516
    • 2005-02-03
    • Kenji FujiwaraTakatoshi KogureAkira NishioTutomu Baba
    • Kenji FujiwaraTakatoshi KogureAkira NishioTutomu Baba
    • H02K21/14H02K21/16H02K1/14
    • H02K1/276H02K21/16H02K2213/03
    • The present invention provides a technique for enabling permanent magnets constituting the field magnet system of an IPM electric rotating machine to be embedded in a rotor core in a shallower depth. The IPM electric rotating machine is composed of a stator and a rotor. The rotor includes a rotor core and permanent magnets constituting the field magnet system. The rotor core has a side face opposed to the stator, and the permanent magnets are shallowly embedded so that the distance between the pole face thereof and the rotor side face is reduced. Furthermore, two adjacent permanent magnets are intensively spaced so that the following formula holds: 0.3
    • 本发明提供一种能够构成IPM电动旋转机械的场磁体系统的永磁体嵌入到较浅深度的转子铁芯中的技术。 IPM旋转电机由定子和转子组成。 转子包括构成磁场磁体的转子铁芯和永久磁铁。 转子芯具有与定子相对的侧面,并且永磁体被浅埋,使得其极面与转子侧面之间的距离减小。 此外,两个相邻的永磁体被集中地间隔开,使得以下公式成立:<?in-line-formula description =“In-line formula”end =“lead”?> 0.3 <(Lq-Ld)/ Ld, in-line-formula description =“In-line Formulas”end =“tail”?>其中Lq是转子的q轴电感,Ld是其d轴电感。