RO137675A2 - Safety system for sockets - Google Patents

Abstract

The invention relates to a safety system for sockets, meant to protect the plug terminals against overheating in case of a poor contact thereof inside the socket terminals. According to the invention, the safety system mainly consists of a socket (1) provided on its two brass contacts (2 and 2') with two interrupted nitinol turns (3 and 3') whose response to temperature increase makes them shrink, ensuring an increased force and consequently, a firm contact with the coupling terminals.

Description

STATE OFFICE FOR INVENTIONS AND MAR»

Patent application by Joyențle

No. ^α *·...........

Date of deposit...................................

Socket safety system

The invention relates to a safety system for the socket, intended for overheating protection of the terminals of the power plug in case of a weak contact of it in the socket terminals.

in order to create some safety systems for the socket, a solution is known (NIȚAN 1.; POPA C. D.; MILICI L. D.; PA VĂL M.; BEJENAR, C.; ȚANTțA O.M.; CENUțĂ M.; GROSU O. V. Safety system for the socket. Request of invention patent no. A00759/8.12.2021, OSIM Bucharest, Romania.), which consists mainly of the use of a system with springs that ensure firm contact between the terminals of the power plug and the socket.

The disadvantages of the solution are related to the constructive complexity of the socket safety system.

The technical problem that the invention solves consists in making a safety system for the socket, intended for overheating protection of the terminals of the power plug and increasing the force at the level of the contact, which uses a system consisting of two turns that ensure a firm contact between the terminals of the plug power supply and outlet.

The safety system for the socket, according to the invention, removes the disadvantages presented by the fact that it consists mainly of two Nitinol coils whose response to the increase in temperature leads to their tightening, ensuring an increase in pressure between the plug terminals and the knobs of the socket, so a firm contact with the coupling terminals, the construction of the system being extremely simple.

The invention presents the following advantages:

Safety in operation, reducing the contact resistance between the consumer and the supply voltage;

Low cost price;

Constructive simplicity;

Safety in exploitation;

Reduction of abnormal or dangerous operating situations.

An embodiment of the invention is given next in connection with figure 1 which represents as follows:

fig. 1 - front view of the safety system for the outlet;

The safety system for the socket, according to the invention, is mainly constituted by a socket 1, provided on the two brass contacts 2 and 2' with two interrupted turns of Nitinol 3 and 3'.

When the terminals of a power plug are inserted into socket 1, they mate with brass contacts 2 and 2' for firm electrical contact. when the current through socket 1, at the level of the electrical coupling, increases, the brass contacts 2 and 2' will heat up, transmitting the heat of the two Nitinol coils 3 and 3' which, under the action of the high temperature, will tighten, increasing the pressure of the blades of brass on the terminals of the power plug, thus avoiding imperfect contact and heating of the power plug, respectively reducing the contact resistance between the consumer and the supply voltage. The tightness is directly proportional to the released temperature.

The safety system for the socket, according to the invention, can be reproduced with the same performance and characteristics whenever necessary, which is an argument in favor of meeting the criterion of industrial applicability.

Bibliographical references

[1], NIțAN L; POPA C. D.; MILITIC L. D.; PAVĂL M.; BEJENAR, C.; O.M. DANCE; CHERISH M.; GROSU O. V. Safety system for socket. Patent application no. A00759/8.12.2021, OSIM Bucharest, Romania.

Claims (1)

demand 1. Safety system for the plug, characterized in that it consists mainly of a plug (1), provided on the two brass contacts (2) and (2') with two interrupted turns of Nitinol (3 ) and (3'), brass contacts (2) and (2') that form a common body with the terminals of a power plug when it is inserted into the socket (1), and when the current through the socket (1), at the electrical coupling level increases, the brass contacts (2) and (2') will heat up, transmitting the heat of the two Nitinol coils (3) and (3') which under the action of the high temperature will tighten, increasing the pressure of the brass plates on the terminals of the power plug, thus avoiding imperfect contact and heating of the power plug, respectively reducing the contact resistance between the consumer and the supply voltage; the tightening being directly proportional to the released temperature.