An intelligent connector (200, 300, 400), configured to couple a bus in an electric appliance with at least one slave module, the intelligent connector comprises: a bus control module (210, 310, 410) comprising a bus interface, a load interface, a first switch control interface and a signal processing unit, wherein: the bus control module (210, 310) is coupled with the bus via the bus interface and coupled with the slave module via the load interface to interchange signals between the bus and the slave module; the signal processing unit is configured to process the interchanged signal; and the first switch control interface is configured to output a switch control signal, characterized in that the intelligent connector (200, 300, 400) further comprises: a power source control module (220, 320) comprising a power source input interface, a power source output interface, a second switch control interface and a switch control unit, wherein: the power source control module receives power supply via the power source input interface and provides the slave module with power supply via the power source output interface; and the second switch control interface is detachably coupled with the first switch control interface to receive the switch control signal provided by the bus control module (210, 310) and to provide the slave module with power supply in response to the switch control signal. a bus control module (210, 310, 410) comprising a bus interface, a load interface, a first switch control interface and a signal processing unit, wherein: the bus control module (210, 310) is coupled with the bus via the bus interface and coupled with the slave module via the load interface to interchange signals between the bus and the slave module; the signal processing unit is configured to process the interchanged signal; the bus control module (210, 310) is coupled with the bus via the bus interface and coupled with the slave module via the load interface to interchange signals between the bus and the slave module; the signal processing unit is configured to process the interchanged signal; and the first switch control interface is configured to output a switch control signal, characterized in that the intelligent connector (200, 300, 400) further comprises: a power source control module (220, 320) comprising a power source input interface, a power source output interface, a second switch control interface and a switch control unit, wherein: the power source control module receives power supply via the power source input interface and provides the slave module with power supply via the power source output interface; and the second switch control interface is detachably coupled with the first switch control interface to receive the switch control signal provided by the bus control module (210, 310) and to provide the slave module with power supply in response to the switch control signal. a power source control module (220, 320) comprising a power source input interface, a power source output interface, a second switch control interface and a switch control unit, wherein: the power source control module receives power supply via the power source input interface and provides the slave module with power supply via the power source output interface; and the second switch control interface is detachably coupled with the first switch control interface to receive the switch control signal provided by the bus control module (210, 310) and to provide the slave module with power supply in response to the switch control signal. the power source control module receives power supply via the power source input interface and provides the slave module with power supply via the power source output interface; and the second switch control interface is detachably coupled with the first switch control interface to receive the switch control signal provided by the bus control module (210, 310) and to provide the slave module with power supply in response to the switch control signal.