WO1993007660A1

WO1993007660A1 - Anti-electric shock socket-plug

Info

Publication number: WO1993007660A1
Application number: PCT/GR1991/000013
Authority: WO
Inventors: George Shinarakis
Original assignee: George Shinarakis
Priority date: 1991-10-10
Filing date: 1991-11-05
Publication date: 1993-04-15
Also published as: AU8945991A; GR1000916B

Abstract

With this recommended system the protection of the users of a socket is achieved while it is not used especially of little children. It includes the use of a magnet switch in the socket which is activated by the assistance of a magnet adjusted to the plug. This system with no other technical changes has an application possibility in multi-sockets as well. This patent does not allow current supply from a socket with the use of bare wires, conductors, as, in spite of the regulations, it is still done by experts.

Description

ANTI-ELECTRIC SHOCK SOCKET-PLUG

This patent has to do with sockets and plugs,which can protect users and especially children from getting electrocuted. The sockets-plugs that have been used so far do not protect users especially little children from getting electrocuted.On the contrary a little child very easily runs the risk of either being paralyzed for the rest of his life or even die while playing with a socket by touching a electrophorus terminal (phase) with any conductible material. This grave situation has been so far confronted by the use of a lid which covers the socket holes,so a child is supposed to be out of danger.But this is proved to be false because the lid can be easily removed by the child and an accident is likely to take place.Even in the case of the up to date anti-electric shock switch there is a chanee of accident by electric shock if someone touches the phase and neutral simultaneously.

So voltage must not be applied to the metal terminals of the sockets when they are not used but it must also be applied during their operation.

The present patent forms an anti-electric shock socket-plug for the users protection from getting electrocuted,by using a system of magnetic switch.This switch consists of a magnet switch is set in the plug,in a special place,in order to turn the switch in a socket off. Therefore only by the right placing of the plug in the socket,namely in such a place that the magnet switch is off,the socket will supply the voltage to the ends,which does not happen when the plug is at any other position.

As a result,when we put any conductible material in the terminals holes of the socket it practically does not contact with any electrophorus conductor,even if it the one on which the voltage is applied during its function.Only in case the condudtible material is the terminals of the particular plug which is used,voltage is supplied.

This present patent has the characteristic that only in case we would like to feed a specific appliance,it supplies voltage and voltage is applied to the ends otherwise there is no voltage on the socket terminals.The result of this is that even if someone wishes to get current from the socket with bare wires,there is no way this can be done

The patant also includes the plug,which can be used in any other socket because the only difference from the up to date plugs is the adjustment of a magnet in it.The system consists of a socket and a plug which are made in such a way,that only with the correct fitting of this two,voltage is supplied to any appliance needed.The system could also include a multi-socket,wich will have the same propereties as the previous one,on every single socket seperately.

According to a preferable realisation of this patent the anti-electric shock socket-plug includes a common plug in which a permanent magnet is fitted and a socket with a switch witch consists of two arms put the phase terminal and the neutral in touch the wiring of the phase and the neutral respectively,when the plug magnet occupies the suitable position.

Appart from the appliance we wish to feed,the socket work provided we connect the appliance with the suitable plug.The same thing happens with the multi-sockets. As conserns the value of current and the value of the voltage it can be made without any limitations at the same high standards as today's which are disposed in market,without any particular problems.

The description of the designs wich follows,has to do with the realissaattiioonn ooff tthhee pptatent in the form of an example without forming a restriction of it. in shape 1. you can see the magnetic switch of the socket.

In shape 2. the plug in wich the magnet has been adjusted,is shown.

Refering to shape 1. now,we can see the magnet switch with the arms

(1 ) that are made of an ins ulating material:porselain, glass, ebonite, plastic materials etc. On the contrary the heads (2) are made of a conductible material,di- amagnetic in contrast to (3) which is strong ferro-magnetic.The joints (4) allow the one-dimensional rotation of the arms,namely their rotation up and down practiculary in a fixed angle which is set by the supports (5) and the spring arming (6).This angle should be as big as possible (smaler than 90 degrees,for example 60 degrees).The supports shoyld have a little friction as possible to make the motion of the arm of them,easier.During the pull of the ferro-magnetic material on the plug magnet,sprig arming takes place (6) and the arms (1) come to a horizontal position because of the support resistance (5). The result of this is the contact of the head (2) with the socket terminal (7),which can be either the phase or the neutral.So,the neutral and the phase are activated simultaneously. Now when the plug is removed from the socket,then the pull of the ferromagnetic material (3) on the plug magnet stops,having as a result the normalising of the spring (6) therefore the return of (3) as well back to its original position,having as a consequence the formation of an angle between the arm and the plug plane,because of the springs (8) with a small normalising factor (k) in relation with (6).Consequently the contact between the head (2) and the socket terminal is cut off.This happens only if the arm length (1) is made a little bigger than the distance between the terminal (7) and its joint (4) .An accessory (9) is adjusted on the head (2) which contacts with the wiring of the installation (phase or neutral) which ends to the socket.

In shape 2. the plug,the front and the section are shown as well as the contact terminals (1) and the magnet (2).This plug has just one technical difference from the one's that are found and that is theadjustment of a magnet in it.

Claims

1. Electric shock defence system is a socket with the use of a socket plug of special manufacture with the property of voltage application to the terminals, only when transportation of current from it to any other appliance is needed. While in the case of no use of the socket plug the voltage application is cut off as well as the current supply to any users with the assistance of a plug with application possibilities in a multi-socket.

2.Application of this patent in a multi-socket according to claim 1. for the use by the users who are served with many plugs from a main socket.

3.Defence system against electrocution according to claims 1. and 2. that uses a magnet switch for the voltage application or not, to the socket ends.