FR2735623A1 - Electronic protection device for domestic refrigerators and freezers - Google Patents

Abstract

The electronic protection device delays the application of supply potential to the compressor motor of a refrigerator or freezer after brief interruptions to the mains supply generated by supply transients or lightning. The delay provides time for the pressure in the refrigeration circuit to fall to a safe level to not overload the motor during recovery. The electronic protection device can be incorporated in protective circuit breaker of in the power plug, and has a timer circuit that delays reapplication of the supply voltage, by providing a shunt that bridges the incoming supply line. The delay can be adjusted between three and five minutes.

Description

The present invention relates to an electronic device ensuring effective protection of household electrical refrigeration appliances against micro power cuts (storm storm days, etc.) by delay in powering up.

 , Indeed, many of these devices-equipped with compressors ~ do not support repeated starts at too short intervals.

boitier modulaire pour rail oméga,de 68mm de profondeur,et large de deux modules de 17,5mm.En façade en partie gauche,il
comprend un coupe circuit pour cartouche de lOA,permettant d'interrompre le circuit.En façade en partie droite,il comprend un petit levier permettant de choisir le fonctionnement

"auto manu",soit avec ou sans temporisation. Une molette ou vis de réglage permet d'ajuster le retard à la mise sous tension dans une fourchette de 3MN à 5mn.Une diode électro luminescente de couleur orange, permet de visualiser la fonction retard à la mise sous tension, Une diode électro luminescente de couleur

verte permet de visualiser le passage du fourant"fonctionnement normal".After a cut in the electrical supply, it takes the time necessary for the refrigeration circuit to be at a fairly low pressure, to allow a restart in good L; 'Conditions. (Most claims for electrical damage to refrigerators or freezers have
for the origin of micro-cuts in bad weather)
The device according to the invention makes it possible to provide effective protection. It comprises in a first embodiment, a

modular box for omega rail, 68mm deep, and wide by two 17.5mm modules. On the front on the left, it
includes a circuit breaker for the OA cartridge, allowing the circuit to be interrupted. On the front on the right, it includes a small lever for choosing the operation

"auto manu", either with or without time delay. A dial or adjusting screw allows you to adjust the delay on power-up within a range of 3MN to 5 minutes. An orange light-emitting diode, allows you to view the power-on delay function, color

green allows you to see the passage of the vertical "normal operation".

établis de façon a former une temporisation à la mise sous tension est alimentée directement par la fermeture du coupe
circuit.The electronic part inside the box is
made up of components such as diode, capacitor, transistor
power, resistance, adjustable resistance, printed circuit

established so as to form a delay on power-up is supplied directly by closing the cut
circuit.

The module is connected at the top
for food and in its lower part for 35
distribution, via 4mml capacity terminals
I1 includes in a second mode of use,
Said adaptable, the box containing the non-adjustable electronic time delay - preset at the manufacturing stage with a delay of 3 minutes at power up. Has on one of its faces a plug
male intended to be connected to a wall socket t6A bi + T. The other side has a bi + TlóA socket (timed output) intended to receive the malt plug from 1 device to be protected.

This device described is a mobile box, adaptable to any B1 + T 16A socket outlet (7)
French and European standards
It includes in a third mode of use,
A male plug molded with a cord (electric cable) of
3X1.5mm; electronic part (time delay) is included
in the male plug bi + T 16A; this part, ... the same as for
the adaptable case is adjusted to the manufacturing value
3mn delay on power-up. The length of the cord
is 1.5m;
The three devices operate on 220v current
The modular device can be timed
by a switch (4).

Claims (2)

1 BI + T 16A (8) to power the device for which it is intended. BI + tl6 A (7) and comprising a non-adjustable delay on power-up delay of 3 minutes made during manufacturing. I1 can receive a male plug Device according to claim 1 characterized in a mobile device adaptable to any power outlet Electronic device intended, by delaying the electrical powering supplying a refrigerator, a freezer, and any other device provided with a refrigerating compressor operating on 220volts current, to protect the latter against micro cuts which lead to long breakdowns, momentary shutdowns, or even destruction of these devices. This device being characterized in that the power-up delay is adjustable from 3 min to 5 min (I) and, because integrated in a standard modular box (2) for omega rail then protected by a circuit breaker (3), which can be schunted by inter (4) and whose operation is visualized by orange LED (5) and green LED (6). The presence of LEDs is not essential for smooth running  Claims  2 "3o Device (9) according to claim 1, characterized in a molded electrical cord (3X1.5mm2) with its male plug BI + T 16A of 1.5m long and comprising, inaccessible, the delay delay on power-up set it also 3 minutes from manufacturing.