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    • 9. 发明授权
    • Electronic defrost controller with fan delay and drip time modes
    • 电子除霜控制器带风扇延时和滴水时间模式
    • US5479785A
    • 1996-01-02
    • US194107
    • 1994-02-08
    • Robert M. Novak
    • Robert M. Novak
    • F25D21/00F25D21/08
    • F25D21/002F25B2600/23F25B2700/2117
    • An apparatus controls an appliance, the appliance including a compressor, a fan, and a heater. The apparatus includes a first switch for selectively coupling a first terminal with one of a second terminal and a third terminal in response to a first control signal. The first terminal is coupled with an energy source and the third terminal is coupled with the compressor. The apparatus further includes a second switch for selectively coupling the second terminal with the heater and the third terminal with the fan in response to a second control signal. The apparatus still further includes a control circuit coupled with the first switch and the second switch for generating the first control signal and the second control signal. A relay drive circuit couples relay coils in series to control the first switch, the second switch, and the third switch. A bypass switch allows a single current to selectively energize one or both relay coils.
    • 设备控制设备,该设备包括压缩机,风扇和加热器。 该装置包括第一开关,用于响应于第一控制信号选择性地将第一端子与第二端子和第三端子中的一个端子耦合。 第一端子与能量源耦合,第三端子与压缩机耦合。 该装置还包括第二开关,用于响应于第二控制信号而选择性地将第二端子与加热器和第三端子与风扇耦合。 该装置还包括与第一开关和第二开关耦合的控制电路,用于产生第一控制信号和第二控制信号。 继电器驱动电路串联耦合继电器线圈以控制第一开关,第二开关和第三开关。 旁路开关允许单个电流选择性地激励一个或两个继电器线圈。
    • 10. 发明授权
    • Defrost recycle device
    • 除霜回收装置
    • US5295361A
    • 1994-03-22
    • US45048
    • 1993-04-08
    • Robert M. NovakGary D. Fredell
    • Robert M. NovakGary D. Fredell
    • F25D21/00F25B47/02
    • F25D21/006
    • A defrost recycle apparatus and method for use with a temperature control system is provided. The temperature control system includes a heat transfer unit for removing heat from an enclosed space. The temperature control system automatically defrosts the heat transfer unit based upon a default defrost control strategy. After the termination of a defrost operation initiated according to the default defrost control strategy, the defrost recycle apparatus determines if the defrost operation was successful (completely defrosted the heat transfer unit) based upon two parameters associated with the defrost operation. In the preferred embodiment, the defrost recycle apparatus determines the success of the defrost operation based upon the temperature in the vicinity of the heat transfer unit after a predetermined period of time has elapsed after the termination of the defrost operation. If the defrost recycle operation determines that the defrost operation was not successful, the defrost recycle apparatus sends a force defrost signal to the temperature control system to initiate a recycle defrost operation.
    • 提供一种与温度控制系统一起使用的除霜回收装置和方法。 温度控制系统包括用于从封闭空间去除热量的传热单元。 温度控制系统根据默认的除霜控制策略自动除霜传热单元。 在根据默认除霜控制策略启动的除霜操作终止之后,除霜回收设备基于与除霜操作相关联的两个参数来确定除霜操作是否成功(完全除霜传热单元)。 在优选实施例中,在除霜操作结束经过预定时间之后,除霜再循环设备基于传热单元附近的温度来确定除霜操作的成功。 如果解冻再循环操作确定除霜操作不成功,则除霜再循环设备向温控系统发送强力除霜信号以启动再循环除霜操作。