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    • 1. 发明专利
    • Power unit
    • 动力单元
    • JP2005192270A
    • 2005-07-14
    • JP2003426821
    • 2003-12-24
    • Matsushita Electric Ind Co Ltd松下電器産業株式会社
    • ONO KOJIHARADA KAZUHIRONISHINOMIYA MASAFUMI
    • H02M7/06
    • PROBLEM TO BE SOLVED: To provide a power unit which restrains higher harmonics while maintaining a high power factor with a simple configuration, and is usable in an area whatsoever, different in power supply voltage and power supply frequency.
      SOLUTION: This power unit is equipped with an AC power source 1, a bridge rectifying circuit 6 which full-wave rectifies AC from the AC power source 1, a reactor 8 which is connected between the AC power source 1 and the AC input end of the bridge rectifying circuit, a capacitor 10 which is connected via a bidirectional switch 9 between the AC input end and the output end of DC, a smoothing capacitor 7, a zero-cross detecting means 12, a power frequency detecting means 13, a bidirectional switch drive signal generating means 14, a storage means 15, a bidirectional switch driving means 16, a DC voltage detecting means 17, a load detecting means 18, and a power voltage calculating means 19.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种能够以简单的结构保持高功率因数的同时抑制高次谐波的电力单元,并且可用于电源电压和电源频率不同的区域。

      解决方案:该电源单元配有交流电源1,从交流电源1全波整流交流电的桥式整流电路6,连接在交流电源1和交流电源1之间的电抗器8 桥式整流电路的输入端,通过双向开关9在DC输入端和DC的输出端之间连接的电容器10,平滑电容器7,零交叉检测装置12,电力频率检测装置13 ,双向开关驱动信号发生装置14,存储装置15,双向开关驱动装置16,直流电压检测装置17,负载检测装置18和电源电压计算装置19.版权所有(C) )2005年,日本特许厅和NCIPI

    • 4. 发明专利
    • POWER CIRCUIT FOR CAR AIR CONDITIONER
    • JPH05316753A
    • 1993-11-26
    • JP11568392
    • 1992-05-08
    • MATSUSHITA ELECTRIC IND CO LTD
    • NISHINOMIYA MASAFUMIYOSHIDA MAKOTO
    • H02H7/20H02M3/28H02M7/537
    • PURPOSE:To prevent a power circuit from being broken at the time of power supply, by providing a second transistor capable of bypassing the base current of a first transistor for controlling the primary winding current of a transformer to the minus terminal of a battery, and providing a resistor to be inserted between the emitter terminals of the first and second transistors. CONSTITUTION:When a switch 2 is turned on and power is supplied, the voltage Vbatt of a battery 3 is applied, and base current Ib flows through a first transistor 12 by way of a resistor 16 and the transistor 12 is turned on. Besides, the voltage Vbatt of the battery 3 is applied to the primary winding 22 of a transformer and voltage Vbase in proportion to the winding turn ratio to the primary winding 22 is induced in a base winding 23 and the current is made constant by the base current Ib. On this occasion, the collector current of the transistor 12 increases as a linear function. And when the voltage drop of a resistor 13 exceeds a specified value, a second transistor 15 is turned on, and the base current Ib is bypassed to the negative terminal of the battery 3 as collector current of the transistor 15, and the transistor 12 is turned off.
    • 5. 发明专利
    • Air conditioner
    • 冷气机
    • JP2005274094A
    • 2005-10-06
    • JP2004091453
    • 2004-03-26
    • Matsushita Electric Ind Co Ltd松下電器産業株式会社
    • NISHINOMIYA MASAFUMI
    • F24F5/00
    • PROBLEM TO BE SOLVED: To restrict leakage of electromagnetic wave to be generated in an outdoor unit of an air conditioner to the outside of the outdoor unit.
      SOLUTION: In order to restrict the electromagnetic wave to be generated when a large current flows, at least two or more reactors 20 and 21 or 22 and 23 are used, and the reactors are fitted to a partition plate 11 inside the outdoor unit so that they are opposite to each other in the top plate or the bottom surface thereof. With this structure, a magnetic field to be generated when current flows in a coil can be offset, and leakage of the electromagnetic wave outside from the outdoor unit can be restricted.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了将在空调的室外机中产生的电磁波的泄漏限制在室外机的外部。 解决方案:为了限制在大电流流动时产生的电磁波,使用至少两个以上的反应器20和21或22和23,反应器装配到室外的隔板11上 单元,使得它们在顶板或其底表面中彼此相对。 利用这种结构,当电流在线圈中流动时产生的磁场可以被偏移,并且可以限制电磁波从室外单元泄漏。 版权所有(C)2006,JPO&NCIPI
    • 8. 发明专利
    • Phase control device
    • 相控装置
    • JP2005025502A
    • 2005-01-27
    • JP2003190131
    • 2003-07-02
    • Matsushita Electric Ind Co Ltd松下電器産業株式会社
    • KOBAYASHI ATSUSHINISHINOMIYA MASAFUMIKONO MAYUMIHATANAKA HIROSHI
    • G05F1/455H02M1/08
    • PROBLEM TO BE SOLVED: To realize a phase control device which keeps a zero-crossing signal waveform by the secondary side output of a power transformer constant free from the load fluctuations of a supply voltage and power circuit.
      SOLUTION: A diode bridge for phase control and a diode bridge for power supply are connected to the secondary side windings of the power transformer, the minus side terminals of these diode bridges are connected to each other, and the diode bridges are connected to the ground of the power circuit via a resistor 17 for detecting the load and the parallel circuit of a capacitor 18. An output by a comparator comparing the output voltage of the diode bridge for phase control with a voltage obtained by dividing the output of the diode bridge for power supply is made to be a zero-crossing signal waveform.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:实现一种相位控制装置,其通过电源变压器的次级侧输出保持零交叉信号波形恒定,而不受电源电压和电源电路的负载波动的影响。

      解决方案:用于相位控制的二极管桥和用于电源的二极管桥连接到电力变压器的次级侧绕组,这些二极管桥的负侧端子彼此连接,并且二极管桥连接 通过用于检测负载的电阻器17和电容器18的并联电路到电源电路的接地。比较器将输出用于相位控制的二极管桥的输出电压与通过将电流 用于电源的二极管桥是过零信号波形。 版权所有(C)2005,JPO&NCIPI