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    • 1. 发明授权
    • Freezer accidental defrost warning device
    • 冰箱意外除霜报警装置
    • US4567474A
    • 1986-01-28
    • US501757
    • 1983-06-06
    • Dale Wolin
    • Dale Wolin
    • F25D29/00G05D23/24G08B21/00
    • F25D29/008G05D23/24
    • A device simply and effectively senses undesirably high temperatures in a refrigerated volume with an accuracy of about 3 percent, and activates an indicator in response to the sensing. A temperature probe is disposed in a freezer, refrigerator, or cooler volume, the probe including a negative temperature coefficient thermistor forming part of a voltage measurement bridge. The resistors of the voltage measurement bridge are all accurate to one percent, and are connected up to a voltage comparator of an integrated circuit. A 9 volt battery powers the device. The device also includes a low battery voltage sensor for activating the indicator when the battery voltage drops below about 8.2 volts, and a sensor for detecting when the probe is damaged or disconnected. The probe detection circuit includes a Darlington transistor, and resistor, the Darlington transistor being connected through a diode to the indicator. The indicator may include a piezo electric horn driven by a horn oscillator circuit.
    • 装置简单有效地以大约3%的精度感测冷藏体积中不期望的高温,并且响应于感测而激活指示器。 温度探头设置在冷冻器,冰箱或冷却器体积中,探头包括构成电压测量桥的一部分的负温度系数热敏电阻。 电压测量桥的电阻都精确到1%,并连接到集成电路的电压比较器。 9伏电池为设备供电。 该装置还包括一个低电池电压传感器,用于当电池电压降至约8.2伏以下时启动指示器;以及一个传感器,用于检测探头何时被损坏或断开。 探头检测电路包括达林顿晶体管和电阻器,达林顿晶体管通过二极管连接到指示器。 指示器可以包括由喇叭振荡器电路驱动的压电喇叭。
    • 5. 发明授权
    • Apparatus and method for charging and discharging a battery
    • 用于对电池充电和放电的装置和方法
    • US07330013B2
    • 2008-02-12
    • US10712451
    • 2003-11-12
    • Dale WolinEugene CohenRichard G. Sevier
    • Dale WolinEugene CohenRichard G. Sevier
    • H02J7/04
    • H02J7/0091Y02B40/90Y02E70/40
    • A method and apparatus for controlling the charge and discharge currents in a battery (2) as a function of temperature. When a battery (2) is charged or discharged in an environment that approaches its design operating temperature extreme, the currents are reduced to limit self-heating of the battery and thus extend the useful operating environment temperature range. A temperature sensor (18) is coupled to a controller (6) to sense the battery (2) temperature. The temperature information is used to set a suitable charging or discharging current (8). In the illustrative embodiment, the charging current is set to a maximum value when said temperature is lower than a first predetermined threshold value, the maximum value being the battery's maximum specified charging current, and the first predetermined threshold value being the battery's maximum charging temperature.
    • 一种用于控制作为温度的函数的电池(2)中的充电和放电电流的方法和装置。 当电池(2)在接近其设计工作温度极限的环境中充电或放电时,电流降低以限制电池的自热,从而延长有用的工作环境温度范围。 温度传感器(18)耦合到控制器(6)以感测电池(2)的温度。 温度信息用于设置合适的充电或放电电流(8)。 在说明性实施例中,当所述温度低于第一预定阈值时,充电电流被设定为最大值,最大值是电池的最大规定充电电流,第一预定阈值是电池的最大充电温度。