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Method to Notify of Line Cord Overheating Where Circuit Breakers Will Not Trip Disclosure Number: IPCOM000243865D
Publication Date: 2015-Oct-22
Document File: 1 page(s) / 22K

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Disclosed is a method to notify a user of a line cord over heating event when a circuit breaker does not trip.

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Method to Notify of Line Cord Overheating Where Circuit Breakers Will Not Trip

Current technology exists to visually indicate when a line cord starts to overheat. This is usually accomplished via use of a thermochromic compound incorporated into the cord jacket or near the socket. The thermochromic material is selected to change color once a trigger temperature is exceeded. Although this approach works well, there is no feedback loop from the overheated cord to a shut-off device. Also, if the cord is covered, or reaches an over temperature condition during times when no one is able to visually monitor it (e.g., during the middle of the night), a visual indication is for all intents and purposes useless. Therefore, a need exists to provide a non-visual means of notification that over temperature conditions exists in a power cord.

    The proposed concept is to monitor the line cord temperature through any of a number of suitable means known to those skilled in the art. In one embodiment, a clamp-on, battery powered transmitter and audible alarm over existing power cords is disclosed. An alternative embodiment is to use a 'box' plugged into the wall that the cord then plugs into and build the circuitry into the box to send the audible and/or wireless signal. Another embodiment entails a 'smart power cord' that notifies the user that the cord has exceeded a trip level and communicates back to the socket to throttle power, etc. This embodiment uses Bluetooth* to communi...