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    • 97. 发明授权
    • Refrigerator control system
    • 冰箱控制系统
    • US4843831A
    • 1989-07-04
    • US160014
    • 1988-02-24
    • Koji Yamada
    • Koji Yamada
    • F25B47/02F25B5/02F25D11/00F25D21/00F25D21/06
    • F25B5/02F25D11/006F25D21/008F25B2600/2511F25B2700/2117F25D2400/04F25D2700/12F25D2700/122
    • A cold accumulation type refrigerator having an improved control system for controlling its defrost cycle. The refrigerator includes a main evaporator for producing cold air, a cooling command signal generating device for generating a cooling command signal when a refrigerator compartment is required to be cooled, a clock device for generating a time data, a refrigerating cycle for cooling the main evaporator in accordance with the cooling command signal and the cold-accumulation material in accordance with the time data from the clock device, and a defrost control device for removing frost deposited on the main evaporator. The defrost control device counts cooling operation time of the evaporator in response to the cooling command signal. If the refrigerator is a fan cool type refrigerator whose evaporator is provided with a cold air circulation fan, the defrost control device counts the operation time of the fan, and when a prescribed time count, such as twelve hours, has been completed, the defrost control device generates a defrost starting signal, whereby a proper defrosting operation is carried out even in the cold-accumulation type refrigerator.
    • 一种冷堆式冰箱,具有改进的控制系统,用于控制其除霜循环。 冰箱包括用于产生冷空气的主蒸发器,用于在冷藏室需要冷却时产生冷却指令信号的冷却指令信号发生装置,用于产生时间数据的时钟装置,用于冷却主蒸发器的制冷循环 根据来自时钟装置的时间数据的冷却指令信号和冷堆积材料,以及用于除去沉积在主蒸发器上的霜的除霜控制装置。 除霜控制装置响应于冷却指令信号计算蒸发器的冷却操作时间。 如果冰箱是蒸发器设置有冷风循环风扇的风扇式冷藏式冰箱,则除霜控制装置对风扇的运转时间进行计数,在规定时间计数(如十二小时)完成后,除霜 控制装置产生除霜启动信号,由此即使在冷堆积型冰箱中也执行适当的除霜操作。