FR2825384A1 - Water supply for washing machine includes electrovalve connected directly to water supply tap, under control from washing machine - Google Patents

Abstract

The water supply system for a dishwasher or clothes washing machine includes an electrovalve (2) attached to the flexible supply pipe (9), and to the water supply tap. This is controlled from within the washing machine, ensuring that failure of the hose or internal valves cannot lead to flooding. The water supply system for a dishwasher or clothes washing machine includes an electrovalve (2) which is fixed to the upstream end of the flexible supply pipe (9). The electrovalve has a fitting for direct connection to the water supply tap (1). An electrical supply cable (8) with connectors (6) is attached to the valve, and runs in parallel with the flexible supply pipe (9). The cable is fitted into the washing machine for direct control from the machine. The downstream end (12) of the supply pipe is connected to the inlet point of the washing machine.

Description

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caoutchouc, plastique lorsque celles-ci sont à l'arrêt ; avec une simple opération de y montage sur le robinet d'arrêt, l'eau se fermera automatiquement quand le cycle de lavage sera tenniné, ce qui ne se fait pas actuellement. Actuellement en référence à la figure 1 représentant la technique actuelle avant installation du dispositif selon l'invention représenté lui en figure 2, pour réaliser un cycle de lavage, on ouvre le robinet (1) d'arrivée d'eau, le tuyau (9) d'alimentation souple par exemple en caoutchouc de la machine à laver est en pression et à partir du moment où la machine à laver se met en route, selon le cycle choisi, l'eau commence à pénétrer dans le tambour de lavage, même quand la machine à laver n'est pas alimentée en eau, le tuyau (9) souple reste toujours en pression et une fois le cycle terminé, si on ne ferme pas le robinet (1), le tuyau (9) est toujours en pression et si il y a un problème sur la machine à laver : l'eau ne se ferme pas bien et la machine à laver continue à se remplir d'eau et si on est pas sur place, la machine à laver est remplie d'eau et quand on ouvre pour sortir le linge (si la machine à laver est à remplissage frontal) c'est l'inondation. Pour le lavevaisselle, le système de fonctionnement est le même que pour le lave linge et s'il se remplit d'eau, une fois le cycle terminé alors qu'il ne contient que très peu d'eau dans la cuve en fonctionnement normal et que la fermeture de la porte n'est pas étanche, alors l'eau sortira tant que l'on ne fermera pas le robinet (1) d'arrêt et ce sera également l'inondation. Le seul système de sécurité existant monté en amont sur le tuyau d'alimentation est un clapet de coupure d'eau qui agit sous l'action de la pression excessive liée à une rupture du tuyau d'alimentation entraînant alors un fort débit d'eau. Avec le système selon l'invention l'utilisateur peut s'absenter après avoir programmé le cycle de lavage ce qui lui permet de disposer de son temps sans prendre de risques, car l'eau se fermera automatiquement à l'arrêt du cycle de lavage. The present invention relates to a safety system to prevent involuntary filling or flooding on the various washing machines, washing machines, dishwashers or any other machine, supplied by a flexible hose, for example

rubber, plastic when these are stopped; with a simple mounting operation on the stop valve, the water will automatically close when the washing cycle is finished, which is not currently the case. Currently with reference to FIG. 1 representing the current technique before installation of the device according to the invention shown in FIG. 2, to carry out a washing cycle, the tap (1) of water inlet, the pipe (9) are opened. ) flexible supply for example of rubber to the washing machine is under pressure and from the moment the washing machine starts, depending on the cycle chosen, water begins to enter the washing drum, even when the washing machine is not supplied with water, the flexible hose (9) always remains under pressure and once the cycle is finished, if the tap (1) is not closed, the hose (9) is always under pressure and if there is a problem on the washing machine: the water does not close well and the washing machine continues to fill with water and if we are not on site, the washing machine is filled with water and when you open to take out the laundry (if the washing machine is front-loaded) it's flooding. For the dishwasher, the operating system is the same as for the washing machine and if it fills with water, once the cycle has ended while there is very little water in the tank in normal operation and that the closing of the door is not waterproof, then the water will come out as long as the stop valve (1) is not closed and this will also be the flood. The only existing safety system mounted upstream on the supply pipe is a water cut-off valve which acts under the action of excessive pressure linked to a rupture of the supply pipe, thus causing a high flow of water. . With the system according to the invention the user can be absent after having programmed the washing cycle which allows him to have his time without taking risks, because the water will close automatically when the washing cycle stops. .

However, it is known from patent EP 0108367 a safety device against water leaks consisting of a solenoid valve upstream of the water supply pipe but with a different control because linked to a soil moisture detector and the electric hedge to the machine is only used to control the control system to which the detector is connected and therefore does not prevent the risk of flooding when opening the machine door which has an overflow. The patent FR 2759390 also describes a system of identical principle for detecting humidity but with a command generated by gas emission, while the invention relates to a device intended to secure the washing cycles of a machine operating with water. especially washing, for example for linen or dishes supplied with water by a flexible supply hose, for example rubber, without worrying about closing the water supply tap of the type made up of a set consisting of: - d '' a solenoid valve intended to be fixed at the upstream end of the flexible supply pipe provided with a connection on the water inlet tap and connected to an electric supply and control cable, characterized in that this cable is provided at the end with means of connection to the supply of

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solenoid valves integrated in the machine, so that the water supply can only be carried out when the internal solenoid valves are supplied, thus preventing them from being blocked in the open position, when they are no longer electrically supplied, the continuity of the water supply in the machine cycle and out of the machine cycle avoiding any risk of overflow and the problems of flooding by natural leakage or when opening the door or porthole of the machine and so floods that result from this maneuver
By way of illustration, the drawings are attached: FIG. 1 represents the supply pipe (9) alone as it currently exists in common.

Figure 2 shows the supply pipe (9), fitted with an electric cable (8), supplying a solenoid valve (2) at the connection to the tap (1) Figure 3 shows the mounting of the solenoid valve (2) on the tap (1) and on the upstream end of the pipe (9) along which runs the supply cable (8) at the end by intermediate plugs (5) and (6) intended to be connected to the supply ( 14) of the solenoid valves of the washing machine or dishwasher (15) in the case illustrated without limitation.

FIG. 4 represents the electrical diagram for connection to the solenoid valves when the machine has a number greater than one, these solenoid valves being associated with different filling phases for example for - the prewash, - the washing 1 - the rinsing, because the we go through different tanks linked to the dose of detergent for prewash, the addition of liquid product, or detergent for washing.

With reference to these drawings, the system consists of a solenoid valve (2) whose body is made of metal or plastic on which there is a nut (3) on the inlet side for connection to the stop valve (1). water and a thread (4) on the outlet side for connection to the rubber hose (9) supplying the washing machine.

There is also an electric cable (8) for supplying the solenoid valve (2) from the washing machine (15). The solenoid valve (2) thus connected to the water supply and to the electrical part of the washing machine will allow, as soon as the washing machine is put into service, it to be supplied with a quantity of water required to complete the wash cycle and as soon as the wash is complete the water will automatically stop. By this simple assembly, there is no longer any risk of flooding as it is frequent and very expensive for insurance companies.

The solenoid valve (2) connected between the shut-off valve (1) and the supply pipe (9) is supplied with electricity via the cable (8) and makes it possible to supply the washing machine with water as soon as the wash cycle program begins and stops the water as soon as the cycle ends. It is also easier to install this solenoid valve (2) on an existing machine, which makes it possible to no longer have any surprises from the floods as soon as you return home.

More generally, the invention relates to a device intended to secure the washing cycles of a machine operating with water, in particular washing water, for example for laundry or dishes supplied with water by a supply pipe by example in rubber without worrying about closing the water inlet tap (l), of the type made up of a compound assembly:

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 - a solenoid valve (2) intended to be fixed at the upstream end of the flexible supply pipe (9) and provided with a connection on the water inlet tap (1) and connected to an electric cable (8) of supply and control, characterized in that this cable is provided at the end with means for connection to the supply of the solenoid valve (s) integrated in the machine, so that the water supply is only carried out during the opening of the machine's solenoid valve (s) guaranteeing that the water supply to the tap (1) is cut off as soon as the machine's solenoid valve (s) are cut and consequently as soon as the machine is no longer in operation and thus avoids flooding problems during use or outside the machine use phase.

According to other particularities: - the electric cable (8) has a length at least equal to that of the supply pipe (9) the invention also relates to a washing machine comprising either from the factory a safety device according to the invention, either an external socket allowing the power supply of the device according to the invention when the latter is supplied as an accessory; said external outlet being pre-connected to the power supplies of the internal solenoid valve (s). The invention applies to any machine supplied by a flexible hose using water according to a cycle, for example for washing, but also for cooling devices, for example an ice machine, a chocolate machine, etc.

In the accompanying drawings, the references represent respectively: 1 shut-off valve 2 solenoid valve 3 connection nut 4 connection thread 5 electrical connection 6 electrical supply inlet 7 connection nut 8 electrical cable 9 supply hose
10 Cable tie! 1 Electric start
12 Connection nut l3 Clamp 14 Solenoid valve supply
15.1, 15.2, 15.3 Machine internal solenoid valves
16 Washing machine

Claims (4)

 cable (8) is provided at the end with means of connection to the supply of the machine or of the solenoid valves / integrated in the machine, so that the water supply is not limited 1. can be carried out only when the solenoid valve (s) internal / are supplied thus avoiding in the event of a blockage in the open position thereof when they are no longer electrically supplied, the continuity of the water supply during the cycle of the machine and out of cycle of the machine avoiding any risk overflow and the problems of flooding by natural leakage or when opening the door or porthole of the machine and thus floods which result from this operation.

CLAIMS 1) Device intended to secure the washing cycles of a machine operating with water, in particular washing water, for example for laundry or dishes, supplied with water by a flexible supply hose, for example rubber, without concern with the closing of the tap (1) for the water inlet, of the type consisting of an assembly composed of: a solenoid valve (2) intended to be fixed at the upstream end of the flexible supply pipe (9). connection on the water inlet tap (1) and connected an electric cable (8) for supply and control) characterized in that 2) Device according to claim 1 characterized in that the electric cable (8) has a length at least equal to that of the supply pipe (9). 3) Washing machine characterized in that it comprises a device according to claim 1 or 2 directly integrated from the factory. 4) Washing machine characterized in that it comprises a device according to claim 1 or 2 and is further provided with an external plug for connection of the electric cable (8), said external plug being pre-connected to the power supplies of the or axas internal solenoid valves)