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发明授权
US08988843B2 Actuator module, system for locking-unlocking a door 有权
执行器模块，用于锁定解锁门的系统

Actuator module, system for locking-unlocking a door
摘要：
The present invention concerns an actuator module (1) comprising an actuating unit (3), said actuating unit comprising a solenoid (31) having a first (31′) and a second (31″) electric terminal, capable, when excited, of generating an electromagnetic field and a PTC (Positive Temperature Coefficient) resistor (32) connected in series with said second electric terminal (31) of said solenoid (31), said actuator module (1) being characterized in that said actuating unit (3) can be controlled by activation signals and protection signals, and in that it comprises a switch circuit (33, 34), connected between said first (31′) and second (31″) electric terminal, said switch circuit (33, 34) allowing the passage of current through said solenoid (31) and said PTC resistor (32) by said activation signals; and preventing the passage of current through said solenoid (31), but allowing the passage of current through said PTC resistor (32), by said protection signals.The present invention also concerns a system for locking-unlocking a door of a household appliance, such as a washing machine and a method for protecting a locking-unlocking system.
摘要（中）：

本发明涉及一种包括致动单元（3）的致动器模块（1），所述致动单元包括具有第一（31'）和第二（31“）电端子的螺线管（31），其能够在被激励时 产生电磁场和与所述螺线管（31）的所述第二电端子（31）串联连接的PTC（正温度系数）电阻器（32），所述致动器模块（1）的特征在于，所述致动单元（3） 可以通过激活信号和保护信号来控制，并且其包括连接在所述第一（31'）和第二（31“）电端子之间的开关电路（33,34），所述开关电路（33,34）允许 通过所述激活信号使电流通过所述螺线管（31）和所述PTC电阻器（32）; 并且防止电流通过所述螺线管（31），但允许通过所述PTC电阻器（32）的电流通过所述保护信号。 本发明还涉及用于锁定解锁家用电器的门的系统，例如洗衣机和用于保护锁定解锁系统的方法。

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