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    • 5. 发明授权
    • Ultrasonic motor
    • 超声波电机
    • US6064139A
    • 2000-05-16
    • US321581
    • 1994-10-11
    • Fujio OzawaTakashi SatoMasao KasugaShuji Otawa
    • Fujio OzawaTakashi SatoMasao KasugaShuji Otawa
    • H01L41/09H02N2/16H01L41/08
    • H02N2/163H02N2/14
    • An ultrasonic motor capable of being accurately step-driven comprises a vibrating member piezoelectrically vibrated for driving and halting a movable member. A driving wave is generated for vibrating the vibrating member to drive the movable member, and a halting wave is generated for vibrating the vibrating member to halt the movable member. The driving wave can be either a travelling wave or a standing wave, and the halting wave is a standing wave. The movable member is divided into a plurality of portions, and when the vibrating member is driven by the halting wave, the portions of the movable member become centered at respective nodal portions of the standing halting wave, causing the movable member to stop rotating so that the ultrasonic motor can be accurately step-driven.
    • 能够精确地逐步驱动的超声波马达包括压电振动的振动部件,用于驱动和停止可动部件。 产生用于使振动部件振动以驱动可动部件的驱动波,产生使振动部件振动以停止可动部件的停止波。 驱动波可以是行波还是驻波,停波是驻​​波。 可移动部件被分成多个部分,并且当振动部件被停止波驱动时,可移动部件的部分在驻停的波浪的相应节点处居中,从而使可动部件停止旋转,从而 超声波电机可以精确地逐级驱动。
    • 6. 发明授权
    • Ultrasonic motor and electronic apparatus equipped with ultrasonic motor
    • 超声波电机和配备超声波电机的电子设备
    • US5416374A
    • 1995-05-16
    • US88181
    • 1993-07-06
    • Tatsunori InoueMasao KasugaMakoto SuzukiKenji SuzukiFujio OzawaKo YamazakiShinichi Hayashizaki
    • Tatsunori InoueMasao KasugaMakoto SuzukiKenji SuzukiFujio OzawaKo YamazakiShinichi Hayashizaki
    • G04C3/12H01L41/04H02N2/00H02N2/14H02N2/16H01L41/08
    • H02N2/166H02N2/142
    • An ultrasonic motor comprises a traveling wave generating circuit for generating a traveling wave signal effective to drive a moving member, and a standing wave generating circuit for generating at least one type of standing wave signal effective to stop movement of the moving member. A switching circuit is receptive of the traveling wave signal and the standing wave signal for selecting one of the traveling wave and the standing wave signals as an output signal. A piezoelectric vibrator drive circuit is receptive of the output signal of the switching circuit for producing a high-frequency voltage signal. At least one piezoelectric vibrator includes an electrode pattern and is adapted to be driven by the voltage signal to undergo expansion and compression. A vibrating member is fixed to the piezoelectric vibrator and vibrationally driven by the expansion and compression movement of the piezoelectric vibrator. A moving member is disposed on the vibrating member to be frictionally driven by expansion and compression movement of the piezoelectric vibrator. The moving member is provided with a plurality of load portions for stopping movement of the moving member, the load portions being greater in number than the number of nodes of the standing wave.
    • 超声波马达包括用于产生有效驱动移动部件的行波信号的行波发生电路和产生至少一种有效停止移动部件移动的驻波信号的驻波发生电路。 开关电路接受行波信号和用于选择行波和驻波信号之一的驻波信号作为输出信号。 压电振动器驱动电路接受用于产生高频电压信号的开关电路的输出信号。 至少一个压电振动器包括电极图案,并且适于由电压信号驱动以进行膨胀和压缩。 振动部件被固定在压电振动器上并通过压电振动器的膨胀和压缩运动而振动地驱动。 移动构件设置在振动构件上,以通过压电振动器的膨胀和压缩运动来摩擦地驱动。 移动构件设置有用于停止移动构件的移动的多个负载部分,负载部分的数量大于驻波的节点数量。
    • 9. 发明授权
    • Cooling structure and cooling method for electronic equipment
    • 电子设备冷却结构及冷却方式
    • US07134607B2
    • 2006-11-14
    • US11034138
    • 2005-01-12
    • Fujio OzawaJunichi HayamaTetsuya MurayamaHiroyuki AbeNaoya Yamazaki
    • Fujio OzawaJunichi HayamaTetsuya MurayamaHiroyuki AbeNaoya Yamazaki
    • F24F7/00F25D23/12H05K7/20
    • H05K7/20581H05K7/207
    • A cooling structure for electronic equipment including a plurality of electronic devices superposed on each other, each of the electronic devices having a lower part where an air ventilation part configured to ventilate air so as to cool the electronic device is provided, the cooling structure includes an air intake and exhaust hole forming part which is formed at an upper part of a first one of the electronic devices and below the air ventilation part of a second one of the electronic devices provided on the first electronic device. Air outside of the electronic equipment is taken into an inside of the second electronic device or air inside of the first electronic device is exhausted to the outside of the electronic equipment via the air intake and exhaust hole forming part, so that an amount of the air ventilated inside of the first electronic device is controlled.
    • 一种用于电子设备的冷却结构,包括彼此叠置的多个电子设备,每个电子设备具有下部,其中空气通风部分构造成使空气通风以冷却电子设备,该冷却结构包括: 进气排气孔形成部分,其形成在第一电子设备的上部并且设置在第一电子设备上的第二电子设备的空气通风部分的下方。 电子设备外部的空气被吸入第二电子设备的内部,或者第一电子设备内部的空气经由进气和排气孔形成部件被排出到电子设备的外部,使得空气量 对第一电子装置内的通风进行控制。