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Receptacle with Plug Detection

IP.com Disclosure Number: IPCOM000249894D
Publication Date: 2017-Apr-25
Document File: 9 page(s) / 1M

Publishing Venue

The IP.com Prior Art Database

Related People

Adam Kevelos: INVENTOR [+4]

Abstract

This disclosure is directed to various methods used to determine if a plug has been inserted into an electrical receptacle. This is advantageous in a number of applications such as but not limited to home automation systems. In addition, this concept can be used to reduce standby power by disconnecting power to electronic circuitry unless a plug is inserted into the receptacle. While there are purely electrical solutions that currently exist, these often result in more complexity and cost. A first method for plug insertion detection is to use a spring member (or torsion spring) to make contact with a plug blade during plug insertion. For example, the spring can be positioned in the path of a plug such that when a plug is inserted, the plug blade makes contact with the spring, which in turn energizes an electrical circuit. The electrical circuit can then indicate/communicate in any suitable manner that a plug has been inserted. See Figs. 1 & 2 below. A second method for plug insertion detection is to use a plug detection terminal located near the neutral face terminal of the receptacle. The plug detection terminal is connected to circuit on a PC Board, which, when contacted by a neutral blade of a plug, is energized. The plug detection terminal has a unique shape. See Figs. 3- 17 below:

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Leviton Manufacturing Co., Inc.

201 North Service Road

Melville, NY 11747-3138

tel 800 323 8920

fax 800 832-9538

www.leviton.com

April 25, 2017

Receptacle with Plug Detection

This disclosure is directed to various methods used to determine if a plug has been inserted into an

electrical receptacle. This is advantageous in a number of applications such as but not limited to home

automation systems. In addition, this concept can be used to reduce standby power by disconnecting

power to electronic circuitry unless a plug is inserted into the receptacle.

While there are purely electrical solutions that currently exist, these often result in more complexity and

cost.

A first method for plug insertion detection is to use a spring member (or torsion spring) to make contact

with a plug blade during plug insertion. For example, the spring can be positioned in the path of a plug

such that when a plug is inserted, the plug blade makes contact with the spring, which in turn energizes

an electrical circuit. The electrical circuit can then indicate/communicate in any suitable manner that a

plug has been inserted. See Figs. 1 & 2 below.

A second method for plug insertion detection is to use a plug detection terminal located near the neutral

face terminal of the receptacle. The plug detection terminal is connected to circuit on a PC Board, which,

when contacted by a neutral blade of a plug, is energized. The plug detection terminal has a unique

shape. See Figs. 3- 17 below:

Fig. 1

Plug

Face...