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    • 6. 发明授权
    • Temperature-dependent switch
    • US11476066B2
    • 2022-10-18
    • US17025862
    • 2020-09-18
    • Marcel P. Hofsaess
    • Marcel P. Hofsaess
    • H01H37/72H01H37/54H01H37/64H01H37/04H01H37/52
    • A temperature-dependent switch comprises a first stationary contact, a second stationary contact, and a temperature-dependent switching mechanism having a movable contact member. In its first switching position, the switching mechanism presses the contact member against the first contact and thereby produces an electrically conductive connection between the two contacts. In its second switching position, the switching mechanism keeps the contact member spaced apart from the first contact. The temperature-dependent switching mechanism further comprises first and second temperature-dependent snap-action parts which switch from geometric low-temperature configurations to geometric high-temperature configurations when exceeding first and second switching temperatures, respectively, and switch back when subsequently falling below first and second reset temperatures, respectively. Switching the first and/or the second snap-action part from its geometric low-temperature configuration to its geometric high-temperature configuration brings the switching mechanism from its first switching position to its second switching position.
    • 10. 发明申请
    • ELECTRICAL CORD REEL WITH CONTROL SYSTEM TO LIMIT OVERHEATING
    • 带控制系统的电动卷轴限制过热
    • US20150123494A1
    • 2015-05-07
    • US14529873
    • 2014-10-31
    • GREAT STUFF, INC.
    • James B.A. Tracey
    • H01H37/72B65H75/44
    • H01H37/72B65H75/40B65H75/4471B65H2515/40B65H2601/26B65H2701/34B65H2701/528Y10T307/773
    • In an electrical cord reel, a rotatable member can rotate about a winding axis to spool and unspool a linear material. An input power connector can couple to an electrical power source. An output power connector on the rotatable member can couple to an electrical cord at least partially wound about the rotatable member. A switch is adjustable to allow or prevent electrical current flow from the input power connector to the output power connector. One or more temperature sensors detect temperature inside a housing enclosing the rotatable member, output power connector, and a fan. A control system activates the fan if the detected temperature rises from a level below a fan-activation threshold to a level above the fan-activation threshold but below a power shut-off threshold. The control system moves the switch to an open position if the detected temperature is greater than or equal to the power shut-off threshold.
    • 在电线卷轴中,可旋转构件可以围绕卷绕轴线旋转以卷绕并脱开线材。 输入电源连接器可以耦合到电源。 可旋转构件上的输出电力连接器可以耦合到至少部分地围绕可旋转构件缠绕的电线。 开关是可调节的,以允许或阻止电流从输入电源连接器流向输出电源连接器。 一个或多个温度传感器检测包围可旋转构件的外壳内的温度,输出电源连接器和风扇。 如果检测到的温度从风扇激活阈值以下的水平升高到高于风扇启动阈值但低于电源关闭阈值的水平,则控制系统启动风扇。 如果检测到的温度大于或等于电源关闭阈值,则控制系统将开关移动到打开位置。