WO2003028170A1 - Thermic protection electric component - Google Patents

Abstract

The idea about the components in object comes from the troubles actually matched to geet an easy and systematic thermic protection for electrical equipments. Over-heating, and possibility of fire, is often caused by socket over-load, small wire selection or false contact in junction box. These components, named 'Thermic Protection Terminal', 'Thermic Protection 'One piece' Socket', 'Modular Thermic Sensor', 'Thermic Protection Box', can cut off only the interested circuits before temperature rises to dangerous levels.

Description

THERMIC PROTECTION ELECTRIC COMPONENT

DESCRIPTION

The idea to patent this utility model comes from the troubles actually

matched to get an easy and systematic thermic protection for electrical

equipments.

Looking to the modern trend to build up more and more safe

installations, we have provided some components able to avoid over-heating and

fire in electrical sockets or i junction boxes or generally in electrical cabinets.

Indeed, over-heating is often caused by socket over load, small wire

selection or false contact injunction box.

The idea is to have a low cost thermic sensor in terminals, boxes and

sockets.

The Thermic Protection Terminal, (TPT) (Fig.l, Fig.2, Fig.3, Fig.4,

Fig.5, Fig.6), which can be used in any electrical connection, keeps a thermic

sensor in central position. The sensor can drive an automatic braker or/and an

alarm as soon as the temperature rises. In the proposed drawings are two

possible kind of TPT: free tenninal or DIN bar terminal.

The Thermic Protection "One piece" Socket, (Fig.7, Fig.8), keeps in

central position a thermic sensor. Like for the Terminal, the sensor will check

the temperature inside the socket. i Fig.9, Fig.10, Fig.11 is shown a modular mermic protection system to

put in chassis. The sensor is shown in Fig.11.

The Thermic Protection Box (TPB), which can be a socket box, a

junction box, or a small electrical cabinet (Fig.12, Fig.13), is subdivided in two

partitions: the first (n.3 in Fig.12 and Fig.13) keeps thermic sensor line, the other

one (n.4 in Fig.12 and Fig.13) keeps all the other necessary lines. The thermic

sensor, installed in the screen between the partitions, intervenes as soon as in the

partition 4 (see drawings) the temperature rises to dangerous levels: it

immediately drives an automatic braker (with or without an alarm) which cuts

off the interested circuit. The drawings Fig.12 and Fig.13 show two possible

kinds of TPB, but it's evidently possible to extend the TPB to the rich choice of

boxes actually used for electrical equipments.

Claims

1) An electrical component (box, terminal, socket) with a built in thermic sensor.

This one drives an automatic protection system as soon as the temperature rises

to dangerous levels in the component.

2) An electric terminal, according to Claim 1), characterized in that there is a built

in thermic sensor in central position (Fig.l, Fig.2, Fig.3, Fig.4, Fig.5, Fig.6).

3) A "One piece" socket, according to Claim 1), characterized in that there is a

built in thermic sensor in central position (Fig.7, Fig.8).

4) A thermic protection modular socket, according to Claim 1), characterized in

that it's possible to insert a modular thermic sensor into the chassis (Fig.9,

Fig.10, Fig.11).

5) A modular box, according to Claim 1), characterized in that it's subdivided in

two partitions: the first (n.3 in Fig.12) keeps thermic sensor line, the other one

(n.4 in Fig.12) keeps all the other necessary lines; the thermic sensor is

installed in the screen between the partitions.

6) A junction box, , according to Claim 1), characterized in that it's subdivided in

two partitions: the first (n.3 in Fig.13) keeps thermic sensor line, the other one

(n.4 in Fig.13) keeps all the other necessary lines; the thermic sensor is

installed in the screen between the partitions.