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    • 10. 发明申请
    • IMPROVED DOOR SYSTEM
    • 改进的门系统
    • WO2010118984A1
    • 2010-10-21
    • PCT/EP2010/054676
    • 2010-04-09
    • ASSA ABLOY IP ABDREYER, Roger Juel
    • DREYER, Roger Juel
    • E05F15/10G01R31/34H01R39/58H01R39/62
    • H01R39/58E05F15/603E05Y2400/502E05Y2400/612G01R31/343H01R39/62
    • A door system (100) comprises a door (102), a direct current, DC, electric motor (104) configured to operate the door and a control unit (114). The DC motor comprises a first pair of brushes arranged at a commutator of the DC motor and configured to be connected to at least a first source of electric power (108), and a second pair of brushes arranged at the commutator of the DC motor and configured to be connected to at least a second source of electric power (112). The control unit is configured to detect damage to the first pair of brushes and, in dependence of such detection, disconnect the first pair of brushes from the first source and connect the second pair of brushes to the second source. That is, a redundant channel of power is provided that can be utilized when a first channel of power has been damaged, thereby maintaining safety critical functionality.
    • 门系统(100)包括构造成操作门的门(102),直流DC,电动机(104)和控制单元(114)。 直流电动机包括布置在直流电动机的换向器处的第一对电刷,并被配置为连接到至少第一电力源(108),以及布置在直流电动机的换向器处的第二对电刷,以及 被配置为连接到至少第二电力源(112)。 控制单元被配置为检测对第一对刷子的损坏,并且根据这种检测,将第一对刷子从第一源断开,并将第二对刷子连接到第二源。 也就是说,提供了一种冗余的电力通道,当第一通道的功率已被损坏时,可以利用该通道,从而保持安全关键的功能。