Appliance leakage current interrupter and nightlight combination
View Patent ↗An appliance leakage current interrupter (ALCI) cord set for powering an appliance includes an ALCI plug having a housing, an ALCI circuit disposed within the housing and two partially exposed contact blades coupled to an input of the ALCI circuit. The contact blades are configured to connect to an electrical receptacle. The ALCI cord set also includes a power cord and a nightlight. The power cord has a generally insulative jacket and two electrical conductors each having a first end electrically coupled to an output of the ALCI circuit and a second end electrically coupled to the appliance. The nightlight is mounted on an exterior of the housing of the ALCI plug. The nightlight is electrically coupled to the output of the ALCI circuit and is illuminated when the ALCI circuit is not tripped.
1. An appliance leakage current interrupter (ALCI) cord set for powering an appliance, the ALCI cord set comprising:
an ALCI plug having a housing, an ALCI circuit disposed within the housing and only two partially exposed contact blades coupled to an input of the ALCI circuit, the only two contact blades being configured to connect to an electrical receptacle;
a power cord having a generally insulative jacket and only a line electrical conductor and a neutral electrical conductor each having a first end electrically coupled to an output of the ALCI circuit and a second end electrically coupled to the appliance; and
a nightlight including a lens cover and a lamp, the nightlight being mounted on and protruding from a surface of the housing, the lens cover being smaller in width and length than the surface of the housing the lens cover is mounted on, the lens cover protruding from the surface of the housing and defining a hollow interior,
the lamp being electrically coupled to the output of the ALCI circuit and being illuminated when the ALCI circuit is not tripped, the lamp protruding into the hollow interior defined by the lens cover beyond the surface of the housing to thereby illuminate an area surrounding the ALCI cord set.
2. The ALCI cord set according to claim 1 , wherein the appliance is a hair dryer.
3. An appliance leakage current interrupter (ALCI) cord set for powering an appliance, the ALCI cord set comprising:
an ALCI plug having a housing, an ALCI circuit disposed within the housing and only two partially exposed contact blades coupled to an input of the ALCI circuit, the only two contact blades being configured to connect to an electrical receptacle;
a power cord having a generally insulative jacket and only a line electrical conductor and a neutral electrical conductor each having a first end electrically coupled to an output of the ALCI circuit and a second end electrically coupled to the appliance;
a nightlight including a lens cover and a lamp, the nightlight being mounted on and protruding from a surface of the housing, the lens cover being smaller in width and length than the surface of the housing the lens cover is mounted on, the lens cover protruding from the surface of the housing and defining a hollow interior, the lamp being electrically coupled to the output of the ALCI circuit and being illuminated when the ALCI circuit is not tripped, the lamp protruding into the hollow interior defined by the lens cover beyond the surface of the housing to thereby illuminate an area surrounding the ALCI cord set; and
an on/off switch electrically coupled between the output of the ALCI circuit and the nightlight, the on/off switch having a first position to block power flow from the output of the ALCI circuit to the nightlight and a second position to allow power flow from the output of the ALCI circuit to the nightlight.
4. The ALCI cord set according to claim 1 , wherein the ALCI circuit comprises:
a current sensing coil configured to sense electrical current flowing out of the ALCI circuit and to sense current flowing back into the output of the ALCI circuit;
an interrupting relay having contacts electrically coupled between the input and the output of the ALCI circuit, the contacts having a closed position to allow power flow from the input of the ALCI circuit to the output of the ALCI circuit and a tripped position to block power flow from the input of the ALCI circuit to the output of the ALCI circuit; and
a fault detection circuit responsive to the current sensing coil and being configured to actuate the interrupting relay from the closed position to the tripped position upon detection of a fault leakage current.
5. The ALCI cord set according to claim 4 , wherein the fault leakage current is between about 2 milliamps and about 8 milliamps.