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    • 66. 发明授权
    • Cooling structure for high tension electrical equipment
    • 高压电气设备的冷却结构
    • US07004233B2
    • 2006-02-28
    • US10254768
    • 2002-09-26
    • Osamu HasegawaKazuhiko AitakaHarumi Takedomi
    • Osamu HasegawaKazuhiko AitakaHarumi Takedomi
    • F28F27/00H05K5/00
    • H05K7/20909
    • A high tension electrical equipment cooling structure for cooling batteries which supply electricity to the operating motor via an inverter, and the inverter using cooling air, and includes an equipment box for guiding cooling air introduced from a cooling air inlet port into a cooling air outlet port, and a fan for introducing cooling air from the cooling air inlet port. A shutter that includes an elastic material is disposed inside the intake duct. The shutter closes off the cooling air flow path, and when negative pressure is generated downstream of the shutter due to the operation of the fan, the shutter undergoes elastic deformation, and as a result, the cooling air flow path is opened.
    • 一种用于冷却电池的高压电气设备冷却结构,其通过逆变器向所述操作电动机供电,并且所述逆变器使用冷却空气,并且包括用于将从冷却空气入口引入的冷却空气引导到冷却空气出口 以及用于从冷却空气入口引入冷却空气的风扇。 包括弹性材料的快门设置在进气管内。 快门关闭冷却空气流动路径,并且当由于风扇的操作而在快门的下游产生负压时,快门经历弹性变形,结果打开冷却空气流动路径。
    • 67. 发明授权
    • Reception AGC circuit
    • US07003057B2
    • 2006-02-21
    • US09983592
    • 2001-10-25
    • Osamu Hasegawa
    • Osamu Hasegawa
    • H04L27/08
    • H03G3/3036H03G3/3052
    • A reception AGC circuit includes a high-speed power calculating circuit for calculating the power of an input signal at a short period, a normal power calculating circuit for calculating the power at a normal period, a circuit for receiving a power calculation result from the high-speed power calculating circuit or normal power calculating circuit to calculate a feedback amplification value, and addition amplification value setting units for self-station communication and peripheral station monitoring which receive the feedback amplification value through a switch and add the feedback amplification value to an amplifier in use. The high-speed power calculating circuit is switched to the normal power calculating circuit in accordance with the value of the difference between the power calculation result obtained by the high-speed power calculating circuit and a predetermined target reception power, and the addition amplification value setting units for self-station communication and peripheral station monitoring are selectively switched depending on whether communication with an external device is self-station communication or peripheral station monitoring.