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    • 4. 发明授权
    • Infant warmer open bed
    • 婴儿保暖开放床
    • US5162038A
    • 1992-11-10
    • US827501
    • 1992-01-27
    • John B. Wilker
    • John B. Wilker
    • A61G11/00G05D23/24
    • G05D23/24A61G11/00A61G2203/46
    • An infant warmer is provided with a heating element for directing radiant heat onto an infant support surface and a temperature sensing probe attachable to the skin of an infant. A heater control which, in an automatic mode, supplies a control signal to a heater power control which includes a component responsive to the difference between the actual temperature and a set temperature and a component which is added or subtracted in incremental amounts depending on whether the actual temperature is above or below the set point. The control also operates to reduce the power to the heater when the total energy supplied to the heater exceeds a maximum amount over a predetermined time interval. In manual mode, the power level is reduced when a preset temperature is reached or if the temperature is not reached after a predetermined time has elapsed. In addition, the heater power is interrupted whenever the control signal or the current to the heater exist independent of the other. The features operate to provide highly responsive temperature regulation and enhanced safety.
    • 婴儿保暖器设置有用于将辐射热引导到婴儿支撑表面上的加热元件和可附着于婴儿皮肤的温度感测探头。 一种加热器控制,其以自动模式向加热器功率控制提供控制信号,加热器功率控制包括响应于实际温度和设定温度之间的差异的分量,以及以增量为单位增加或减少的分量,这取决于是否 实际温度高于或低于设定值。 当提供给加热器的总能量在预定的时间间隔内超过最大量时,该控制还用于降低加热器的功率。 在手动模式下,当达到预设温度或在经过预定时间后温度未达到时,功率电平降低。 此外,只要控制信号或加热器的电流独立于另一个,加热器功率就会中断。 这些功能可以提供高度响应的温度调节和增强的安全性。