NOVELTY - An electrical adapter assembly comprises a cable (60) having a thermal sensor mounted in an inner space of a connector (10). The thermal sensor is a bimetallic strip assembly having two brackets (42, 42'), each being electrically conductive and connecting to a positive wire, and a bimetallic strip (41) having a proximal end securely connecting to the first bracket, and a distal end selectively contacting the second bracket; or a thermistor comprising a resistor mounted in the inner space of the connector, and a sensor wire connecting the resistor to the cable.    USE - For use with automobile power source battery or a smoke lighter for an electrical appliance such as laptop, personal digital assistant, or mobile phone.    ADVANTAGE - Because the thermal sensor can sense the temperature in the connector and cut off the current when the temperature is too high, the cable will not be damaged and users will not be in danger.    DETAILED DESCRIPTION - An electrical adapter assembly comprises:    (1) a cable having a distal end having a plug mounted on the distal end of the cable, and having a through hole(s) defined in the plug; a proximal end having a connector having a shell mounted on the proximal end, the shell having an inner space; a first end having an input hole defined through the first end and communicating with the inner space; a second end having an output hole defined through the second end and communicating with the inner space to allow the cable to be mounted in the inner space; an outer surface; a positive electrode having a terminal and a positive wire, where terminal covers the first end and has an electrically conductive protrusion mounted through and extending out of the input hole, the positive wire connects the protrusion and the cable; a negative electrode comprising a resilient tab and a negative wire, where resilient tab is electrically conductive, and is mounted in the inner space and extends out of the shell, and the negative wire connects the resilient tab to the cable; and a thermal sensor mounted in the inner space of the connector; and    (2) an adapter connecting to the cable and having a circuit board mounted in the adapter; and a socket mounted on the adapter to allow the plug to plug into the socket and having a contact(s) mounted in the socket and connecting to the circuit board.    DESCRIPTION OF DRAWING(S) - The figure is a side view of the connector of electrical adapter assembly with one shell half detached.    Connector (10)    Bimetallic strip (41)    Brackets (42, 42')    Cable (60)