ES2503622T3 - Washing machine comprising a wash and / or rinse water tank - Google Patents

Abstract

Washing machine (1) comprising: - a frame (2); - wherein said frame (2) encloses a washing tank (3); - a reservoir of wash and / or rinse water (6); - a hydraulic water distribution circuit; - wherein said hydraulic water distribution circuit connects said washing tank (3) of said washing machine (1) to said water tank (6), said hydraulic water distribution circuit comprising at least one circulation pump of water (11, 12) that circulates wash and / or rinse water from said water tank (6) to said wash tank (3) of said washing machine (1), and vice versa; - wherein said water tank (6) comprises an aeration device (26) so that filling with, and emptying of, water of said water tank (6) is allowed; - wherein said hydraulic water distribution circuit comprises an upper point (25) formed between said water tank (6) and said washing tank (6) of said washing machine (1); - wherein said upper point (25) of said hydraulic water distribution circuit is located at the same height or above the maximum permissible water level (N1) inside said water tank (6); characterized in that - said hydraulic water distribution circuit comprises a first water circulation conduit (10) disposed inside said water tank (6); and - said upper point (25) is formed by said first water circulation conduit (10) disposed inside said water tank (6); - wherein said upper point (25) of said first water circulation duct (10) comprises at least one passage opening (42) which flows into the storage area for washing and / or rinsing water of said reservoir of water (6) so as to prevent a transfer of wash and / or rinse water between said water tank (6) and said wash tank (3) of said washing machine (1), and vice versa; and - wherein said aeration device (26) of said water reservoir (6) is in fluidic communication with said at least one passage opening (42) of said first water circulation conduit (10) disposed within said water tank (6).

Description

"Washing machine comprising a washing and / or rinsing water tank"

The present invention relates to a washing machine comprising a washing tank, a washing and / or rinsing water tank and a hydraulic water distribution circuit.

In general, the present invention relates to washing machines comprising a wash and / or rinse water reservoir that allows the use of this wash and / or rinse water along a subsequent phase of a operating cycle or during a subsequent operating cycle.

More particularly, the present invention finds its application in household washing machines, and in particular in washing machines and dishwashing machines.

Document EP 0 911 439 A1 is already known which describes a washing machine comprising a frame, a washing and / or rinse water tank, a hydraulic water distribution circuit. The frame encloses a washing tank. The hydraulic water distribution circuit connects the washing tank of the washing machine to the water tank. The water tank comprises an aeration device so that it is allowed to fill with and drain water from said water tank. And the hydraulic water distribution circuit comprises a water supply line and a water drain line arranged inside the water tank.

The aeration device of the water tank comprises a vent that only allows air to be introduced and evacuated therefrom respectively during phases of emptying, and filling with, washing and / or rinsing water of said tank, said vent comprising a controlled valve by a control unit of the washing machine.

The water tank comprises a water level sensor functionally connected to the control unit of the washing machine that allows the upper level of water to be detected in said water tank. This water level sensor allows to control the stop of water filling of the water tank through the control unit by stopping the drain pump and clogging the vent through the valve.

The hydraulic water distribution circuit comprises an upper point formed between the water tank and the washing tank of the washing machine, where the upper point of the hydraulic circuit is located above the maximum permissible water level inside the water tank and is integrated in a siphon that connects the water tank to the drain outlet of the washing tank.

However, this washing machine having a wash and / or rinse water tank has the disadvantage that an upper point of the hydraulic water distribution circuit formed between the water tank and the washing tank of the machine for Washing cannot prevent the return of the wash and / or rinse water stored in the water tank to the washing tank of the siphoning machine as soon as this transfer of wash and / or rinse water between the tank begins of water and the washing tank of the washing machine.

This washing machine equipped with a wash and / or rinse water tank allows the total amount of wash and / or rinse water contained in said water tank to be emptied but not a partial amount of wash and / or wash water. cleared up.

In addition, the upper point of the hydraulic water distribution circuit is located outside the water tank. This upper point is located above an upper wall of the water tank, and formed between the water drain conduit disposed inside the water reservoir and a water drain conduit disposed along an outer side wall of the water tank.

Therefore, such an arrangement of the upper point of the hydraulic water distribution circuit increases the space occupied by the hydraulic water distribution circuit and the water tank.

On the other hand, this washing machine that has a wash and / or rinse water tank where the emptying of this water tank is implemented by siphoning by means of the drain pump and the siphon, presents the drawback of the lower water level in the water tank is at least as high as the maximum water level in the washing tank of the washing machine.

Therefore, the water tank cannot occupy the entire height of the washing machine.

Also known is EP 2 312 042 A1 which describes a washing machine comprising a frame, wherein the frame encloses a washing tank, a washing and / or rinsing water tank, a hydraulic water distribution circuit . The hydraulic water distribution circuit connects the washing tank

from the washing machine to the water tank. The water distribution hydraulic circuit comprises at least a water circulation pump that circulates wash and / or rinse water from the water tank water to the washing tank of the washing machine, and vice versa. The water tank comprises a aeration device so that filling with, and emptying of, water from the water reservoir is allowed. He hydraulic water distribution circuit comprises an upper point formed between the water tank and the wash tank of the washing machine. The top point of the hydraulic water distribution circuit is located at the same height or above the maximum permissible water level inside the water tank.

The present invention aims to solve the aforementioned drawbacks and propose a washing machine equipped with a wash and / or rinse water tank that allows to suppress the water siphoning phenomenon so that the volume of water storage in the tank is optimized of water and a partial amount of wash and / or rinse water is emptied or from the wash tank to said water tank or said water tank towards said washing tank from a circuit Hydraulic water distribution machine for washing simple, reliable and inexpensive, and partly integrate the Hydraulic water distribution circuit inside the water tank.

In this regard, the present invention relates to a washing machine comprising: -a framework; - where said framework encloses a washing tank; -a water tank for washing and / or rinsing; -a hydraulic water distribution circuit; - where said hydraulic water distribution circuit connects said washing tank of said machine for washing said water tank, said hydraulic water distribution circuit comprising at least one water circulation pump that circulates wash and / or rinse water from said water tank water to said washing tank of said washing machine, and vice versa; -where said water tank comprises an aeration device so that filling is allowed with, and emptying of, water from said water reservoir;

- where said hydraulic water distribution circuit comprises an upper point formed between said water tank and said washing tank of said washing machine; - where said upper point of said hydraulic water distribution circuit is located at the same height

or above the maximum permissible water level inside said water tank.

According to the invention, said hydraulic water distribution circuit comprises a first water circulation conduit disposed inside said water tank; and said top point is formed by said first water circulation conduit disposed inside said water reservoir; - wherein said upper point of said first water circulation conduit comprises at least one passage opening that flows into the storage area for washing and / or rinsing water of said water tank so as to prevent a transfer of wash and / or rinse water between said water tank and said wash tank of said washing machine, and vice versa; and - wherein said aeration device of said water reservoir is in fluidic communication with said at least one passage opening of said first water circulation conduit disposed within said water reservoir.

Thus, said at least one passage opening of the first water circulation conduit disposed inside the water reservoir flows into the interior of the water reservoir so as to prevent the return of the wash and / or rinse water stored in the water tank to the washing tank of the washing machine, and conversely, allowing an introduction of air into the first water circulation duct disposed inside the water tank through said at least one passage opening .

In this way, the upper point formed by the first water circulation duct disposed inside the water tank and disposed between the water tank and the washing tank of the washing machine makes it possible to stop the transfer by siphoning of the water from washing and / or rinsing from the water tank to the washing tank of the washing machine, and conversely, after stopping a water circulation pump that circulates the washing and / or rinsing water between the water tank and the wash tank.

A washing machine of this type equipped with a water tank allows a partial amount of washing and / or rinsing water to be emptied from the water tank to the washing tank, and vice versa.

The air introduced through said at least one passage opening in the first water circulation duct disposed inside the water tank circulates inside the water tank from the aeration device of the water tank towards said at least a passage opening of the first water circulation duct.

Said at least one passage opening of the first water circulation conduit disposed inside the

Water tank therefore allows to create an air passage from the outside of the water tank into the hydraulic circuit of water distribution through the water tank.

Said at least one passage opening disposed in the first water circulation conduit also allows a part of the water circulating in the first water circulation conduit to be directly evacuated into the water reservoir while avoiding a complementary connection between said water at least one passage opening disposed at the level of the upper point of the first water circulation duct and a recovery zone of this amount of evacuated water so that the hydraulic water distribution circuit is simplified and the cost of obtaining the water is minimized. same.

In this way, the fluidic communication between said at least one passage opening of the first water circulation duct disposed inside the water tank and the aeration device of the water tank makes it possible to guarantee the filling with, and the emptying of, wash and / or rinse water from the water tank in a reliable, simple and inexpensive way.

In addition, the placement of the upper point of the hydraulic water distribution circuit inside the water tank and its formation by means of a first water circulation duct arranged inside the water tank allow minimizing the space occupied by the circuit Hydraulic water distribution and water tank.

On the other hand, a construction of this type of hydraulic circuit of water distribution between the washing tank of the washing machine and the water tank is simplified and makes it possible to dispense with a closing and opening device of the aeration device of the tank of water and a water level sensor that detects the maximum water level in the water tank.

Such a construction of the hydraulic water distribution circuit between the washing tank of the washing machine and the water tank also allows a water tank to be arranged inside the frame of the washing machine that extends in height from a lower wall to an upper wall of the frame of the washing machine.

In practice, said upper point of said first water circulation conduit is disposed at the level of the junction between first and second parts of said first water circulation conduit, wherein said first and second parts of said first circulation conduit of water respectively extend inside said water tank and from the bottom towards the top of said water tank.

Thus, the two parts that constitute the first water circulation duct are integrated inside the water tank and connected to each other so that the upper point of the hydraulic water distribution circuit is formed between the water storage area of the water tank and washing tank of the washing machine.

In this way, the construction of the hydraulic water distribution circuit is simplified and makes it possible to limit the use of flexible pipes from a hydraulic element in which the upper point of the hydraulic water distribution circuit is formed towards the water tank and towards the wash tank of the washing machine.

The present invention finds its application when the washing machine is a domestic washing machine, in particular a dishwashing machine, a machine for washing clothes or a machine for washing and drying clothes.

Other particularities and advantages of the invention are further apparent from the following description.

In the attached drawings, provided by way of non-limiting examples:

-

Figure 1 is a schematic sectional view of a washing machine, in particular of a machine for washing clothes with a load of clothes from the top, comprising a washing and / or rinsing water tank according to a mode of embodiment of the invention;

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Figure 2 is a schematic view of the two carcass walls of a wash and / or rinse water reservoir according to an embodiment of the invention, where the path of the wash and / or wash water is shown. rinsing in said water tank during the emptying of the washing water and / or rinsing of the washing tank of the washing machine towards an external sewage network;

-

Figure 3 is a schematic view of the two carcass walls of a wash and / or rinse water tank according to an embodiment of the invention, where the path of the wash water and / or of the rinsing in said water tank during the emptying of the washing water and / or rinsing of the water tank to an external wastewater network;

-

Figure 4 is a schematic view of the two carcass-shaped walls of a wash and / or rinse water reservoir according to an embodiment of the invention, where the path of the wash and / or wash water is represented. rinsing in said water tank during the emptying of the washing and / or rinsing water of the washing tank of the washing machine towards the washing and / or rinsing water tank;

-

Figure 5 is a schematic view of the two carcass-shaped walls of a wash and / or rinse water reservoir according to an embodiment of the invention, where the path of the wash and / or wash water is shown. rinsing in said water tank during the emptying of the washing water and / or rinsing of the water tank towards the washing tank of the washing machine;

-

Figure 6 is a first schematic perspective view of a valve that connects a washing tank, a washing and / or rinsing water tank of a washing machine and an external wastewater network according to an embodiment of the invention;

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Figure 7 is a second schematic perspective view of a valve that connects a washing tank, a washing and / or rinsing water tank of a washing machine and an external sewage network according to an embodiment of the invention; Y

-

Fig. 8 is a schematic perspective view of a wash and / or rinse water reservoir according to an embodiment of the invention, wherein the two shell-shaped walls are assembled together, and in which a valve and A water circulation pump are assembled in a wall of the water tank.

A washing machine according to the invention will be described with reference to Figures 1 to 8.

This washing machine can be a machine for washing household dishes, a machine for washing household clothes or a machine for washing and drying household clothes.

An embodiment has been illustrated, with reference to Figure 1, which describes a machine for washing clothes with laundry from the top. Obviously, the present invention applies to all types of washing machine, and in particular front loading.

A washing machine 1 comprises a frame 2. The frame 2 of the washing machine 1 comprises a front wall 2a, a rear wall 2d, two side walls, an upper wall 2b and a lower wall 2c.

Classically, a machine for washing clothes 1 of this type comprises a frame 2 adapted to accommodate a washing tank 3.

A drum (not shown) intended to contain the clothes can be mounted in rotation inside the washing tank 3.

The frame 2 comprises an upper opening that allows the clothes to be inserted and removed from the drum.

This access opening can be sealed during the operation of the machine 1 by means of a door 4 pivotally mounted in the frame 2 of the machine 1.

A control panel 5 is also provided on the top of the washing machine 1.

Obviously, this machine for washing clothes 1 comprises all the necessary elements (not shown) for the operation and for the execution of the washing, rinsing and spinning cycles of the clothes.

The washing machine 1 comprises a wash and / or rinse water tank 6.

Preferably, the wash and / or rinse water tank 6 is internal to the frame 2 of the washing machine 1.

The wash and / or rinse water tank 6 can be fixed to the frame 2 of the washing machine 1, for example to a wall of the frame 2, such as the front wall 2a, the rear wall 2d or a side wall.

Obviously, the placement and / or fixation of the wash and / or rinse water tank with respect to the frame of the washing machine are not at all limiting and may be different.

The washing machine 1 comprises a hydraulic water distribution circuit, wherein the hydraulic water distribution circuit connects the washing tank 3 of the washing machine 1 to the water tank 6.

The washing machine 1 can comprise a feed of water from the network (not shown) so that the washing tank 3 is filled during the different phases of a wash cycle with water that has not been used during an earlier phase of the cycle of operation in progress or during a previous operating cycle.

The hydraulic water distribution circuit of the washing machine 1 can be fed with water from the network by means of a water supply line from the network (not shown) directly connected to the washing machine 1 from an external water network by of a solenoid valve that allows regulating the amount of water necessary for the operation of the washing machine 1.

The hydraulic water distribution circuit comprises at least one water circulation pump 11 so that the water tank 6 is filled with washing water and / or rinsing from the washing tank 3 of the washing machine 1.

Advantageously, at least one water circulation pump 11, 12 of the hydraulic water distribution circuit allows washing and / or rinsing water to be circulated from the water tank 6 to the washing tank 3 of the washing machine 1 , and vice versa.

The hydraulic water distribution circuit comprises a plurality of water flow ducts 7, 8, 9, 10.

In one embodiment, the hydraulic water distribution circuit comprises:

or a first water circulation pump 11 that connects the wash tank 3 to at least one valve 14, and

or a second water circulation pump 12 that connects the wash and / or rinse water tank 6 to said at least one valve 14.

In this case, the first water circulation pump 11 mounted at the outlet of the washing tank 3 of the washing machine 1 allows, on the one hand, to supply the water tank 6 from the tank with washing and / or rinsing water. of washing 3 of the washing machine 1 and on the other hand emptying the washing tank 3 towards the external sewage network 13. And the second water circulation pump 12 mounted in the water tank 6 allows on the one hand to feed with wash and / or rinse water the wash tank 3 of the washing machine 1 from the water tank 6 and on the other hand empty the water tank 6 into the external wastewater network

13.

One of said first and second water circulation pumps 11, 12 is adapted to allow the passage of a water flow from the washing tank 3 to the water tank 6, and vice versa, when it is inactive while another of said First and second water circulation pumps 11, 12 is active.

Thus, one of said first and second water circulation pumps 11, 12 that is stopped is adapted to allow a flow of water to pass through it when the other of said first and second water circulation pumps 11, 12 operates so that the water circulation is not blocked through the hydraulic water distribution circuit of the washing machine 1, and vice versa.

In this way, the hydraulic water distribution circuit between the washing tank 3 and the water tank 6 comprising two water circulation pumps 11, 12 and at least one valve 14 is simplified so as to limit the costs of Obtaining and guaranteeing the reliability of the washing machine 1.

Advantageously, said first and second water circulation pumps 11, 12 are centrifugal pumps.

The specificity of these centrifugal pumps is that they allow the passage of a flow of water inside your body when they are not put into operation.

In this case, the second water circulation pump 12 is located at a lower point of the water tank

6.

Thus, the second water circulation pump 12 allows the water tank 6 to be emptied.

The placement of the second water circulation pump 12, which is a centrifugal pump, is also linked to its design since this water circulation pump can only be operated while being primed with water and not sucking water.

On the other hand, the placement of the second water circulation pump 12 at a lower point of the water tank 6 is also linked to the space available inside the frame 2 of the washing machine 1 so as to optimize the dimensions of the washing tank 3 of the washing machine 1 and the water tank 6.

The water reservoir 6 comprises at least one connection for a water circulation conduit 7, and a connection for a drain conduit 8.

The water tank 6 is fed with washing and / or rinsing water by means of a water circulation line 7 from the washing tank 3 of the washing machine 1. The feeding with washing and / or rinsing water of the Water tank 6 from the washing tank 3 of the washing machine 1 can be implemented by the first water circulation pump 11 of the washing machine 1, in particular a drain pump.

The water tank 6 feeds with washing and / or rinsing water, from an earlier phase of an operating cycle that is being implemented or from a previous operating cycle, the washing tank 3 of the washing machine 1 by a water circulation line 7. The feeding with washing and / or rinsing water of the washing tank 3 of the washing machine 1 from the water tank 6 can be implemented by the second water circulation pump 12 of the water tank 6, in particular a drain pump.

In this embodiment, the water circulation duct 7 can serve: - on the one hand to feed the washing tank 6 with water and / or rinse water from the washing tank 3 of the washing machine 1, and - on the other hand to feed with wash and / or rinse water, from an earlier phase of an operating cycle that is being implemented or from a previous operating cycle, the wash tank 3 of the washing machine 1 from the water tank 6.

Obviously and in an absolutely non-limiting manner, the feeding with washing and / or rinsing water from the washing tank 3 of the washing machine 1 to the water tank 6, and conversely, can be implemented by means of conduits of different water flow.

The water circulation duct 7 can also be used to empty the washing tank 3 of the washing machine 1 by directing washing and / or rinsing water to the external wastewater network 13 after the passage of this washing water and / or rinsing through elements mounted in the water tank 6, such as for example said at least one valve 14, and without having been stored in said water tank 6.

The water tank 6 is emptied of the wash and / or rinse water from the wash tank 3 of the washing machine 1, where the wash and / or rinse water is stored in a water storage area for washing and / or rinsing 6c of said water tank 6, by means of a drain line 8 connected to the water tank 6, in particular to said at least one valve 14 and to the external wastewater network 13.

The drain duct 8 can be used for emptying the wash and / or rinse water contained in the water tank 6 and the wash and / or rinse water contained in the wash tank 3 of the washing machine 1 to the external wastewater network 13, in particular by means of said at least one valve 14.

The water circulation line 7 that connects the washing tank 3 of the washing machine 1 to the water tank 6 and the drain line 8 that connects the water tank 6 to the external wastewater network 13 can be interconnected by said means at least one valve 14 so that the washing and / or rinsing water is directed towards the external sewage network 13 or directly at the outlet of the washing tank 3 of the washing machine 1 or after the passage to the water tank 6.

In an embodiment as illustrated in Figure 1, said at least one valve 14 is connected to four inlet and / or outlet lines 7, 8, 9, 10 of wash and / or rinse water.

A first water circulation conduit 10 is connected to said at least one valve 14 and to the second water circulation pump 12 installed at a lower point of the water reservoir 6.

The first water circulation duct 10 is disposed inside the water tank 6, and in particular it is formed by walls of the water tank 6.

In this embodiment, the first water circulation duct 10 can serve: - on the one hand to feed the washing tank 6 with water from the wash tank 3 of the washing machine 1, and - on the other hand to feed with wash and / or rinse water, from a previous phase of an operating cycle that is being implemented or from a previous operating cycle, the washing tank 3 of the washing machine 1 from the water tank 6.

The second water circulation duct 7 is connected at the outlet of the first water circulation pump 11 and to said at least one valve 14, said first water circulation pump 11 being connected to

the drain outlet of the washing tank 3 of the washing machine 1.

In this case, the second water circulation duct 7 is made in two parts. The first part of the second water circulation conduit 7 is a flexible conduit 7a connected at the outlet of the first water circulation pump 11 and to a water passage opening 15 of the water reservoir 6. And the second part of the second conduit Water circulation 7 is a conduit 7b disposed inside the water tank 6 connected to the water passage opening 15 of the water tank 6 and said at least one valve 14.

A drain conduit 8 is connected on one side to said at least one valve 14, in particular to a water inlet opening 41 of said at least one valve 14, and on the other hand to the external wastewater network 13. The drain duct 8 is a flexible duct.

An overflow conduit 9 is disposed inside the water reservoir 6. One end of the overflow conduit 9 comprises a water inlet opening 17 which flows into the interior of the water reservoir 6. The water inlet opening 17 of the Overflow conduit 9 is preferably located at the same height or above the maximum permissible water level N1 inside the water reservoir 6. Another end of the overflow conduit 9 is connected to said at least one valve 14.

A valve connecting a washing tank, a washing and / or rinsing water tank of a washing machine and an external wastewater network according to a mode of reference will be described, with reference to Figures 1, 6 and 7 realization.

A valve 14 comprises one or more actuators 27a, 27b that allow control of flaps 28, 29, 30 so that they open or close water flow passages 38a, 38b, 39, 40a, 40b that connect the washing tank 3 of the machine for washing 1, the water tank 6 and the external sewage network 13.

The actuator (s) 27a, 27b of the valve 14 may be cylinders of expandable material, as illustrated in Figures 6 and 7.

Obviously, the valve actuator (s) may be different, such as for example electric motors, electromagnets, etc.

In this embodiment, the valve 14 comprises two actuators 27a, 27b.

Obviously, the number of valve actuators is not at all limiting and may be different.

In this embodiment, the valve 14 is mounted in the water tank 6, and in particular in the lower part of the water tank 6. The valve 14 comprises: - a first water inlet / outlet opening 31 connected to the washing tank 3 of the washing machine 1 by means of the second water circulation duct 7, -a second water inlet / outlet opening 32 connected to a storage area for washing and / or rinsing water 6c of the tank of water 6 by means of the first water flow conduit 10, -a water outlet opening 33 connected to the external sewage network 13 through the drain duct 8, and -a water inlet opening 41 connected to the overflow conduit 9 of the water tank 6 which allows the excess of washing and / or rinsing water to be evacuated during the filling of the water tank 6 with washing and / or rinsing water from the washing tank 3 of the machine to wash 1.

The valve 14 can be constituted by a body 34 and a cover 35. The cover 35 is fixed on the body 34 of the valve 14 by means of conventional fixing means, for example of the type by screwing, snap fit. These fixing means are well known to those skilled in the art and it is not necessary to describe them in more detail herein.

A hydraulic water distribution circuit of a washing machine according to an embodiment of the invention will now be described, with reference to Figures 1 to 5 and Figure 8.

Figures 2 to 5 illustrate the water tank 6 as a function of the different phases of water circulation in the hydraulic water distribution circuit. For the purpose of simplifying the representation of the water tank 6 with the different hydraulic control elements in these figures 2 to 5, the second water circulation pump 12 and the valve 14 are shown facing the inner face of the wall 6a of the water tank 6 while these are preferably arranged against the outer face of the wall 6b of the water tank 6, as illustrated in Figure 8.

The water tank 6 comprises at least one passage opening 42 disposed in the upper part of the water tank 6, and through which a water flow is directed into the water tank 6.

The water tank 6 comprises at least one deviation element of a water flow 19a, 19b disposed inside the water tank 6 so that the direction of a water flow flowing from said at least one opening of passage 42 of the water tank 6 into the water tank 6, and in particular in the storage area for washing and / or rinsing water 6c of the water tank 6.

Thus, said at least one element of deflection of a water flow 19a, 19b disposed inside the water tank 6 makes it possible to avoid a water projection on the upper surface N2 of the amount of water present inside the water tank 6 along the water filling phase of the water tank 6.

In this way, the noise generated by the water inlet during water filling of the water tank 6 is minimized.

Preferably, said at least one water flow deflection element comprises at least one break wall of a water flow 19a disposed facing said at least one passage opening 42 of the water reservoir 6 so that the projection is broken of water from said at least one passage opening 42 of the water reservoir 6.

Thus, said at least one rupture wall of a water flow 19a allows a water flow that enters the water tank 6 to break so that the impact of a single water flow on the upper surface N2 is avoided. of the amount of water present inside the water tank 6.

Thus, said at least one break wall of a water flow 19a allows multiplying the number of impact points on the upper surface N2 of the amount of water present inside the water reservoir 6.

Preferably, said at least one deviation element of a water flow comprises at least one guiding wall of a water flow 19b so that the projection of water from said at least one passage opening 42 of the water reservoir is guided 6 against an inner wall 20 of the water tank 6, wherein the inner wall 20 of the water tank 6 extends according to the height of the water tank 6.

Thus, said at least one guide wall of a water flow 19b allows to guide a water flow entering the water tank 6 against an internal wall 20 of said water tank 6 so that the impact zone of a water flow on the upper surface N2 of the amount of water present inside the water tank 6.

In this case, the inner wall 20 of the water reservoir 6 against which the flow of water guided by said at least one guiding wall of a water flow 19b flows is a wall of the overflow conduit 9.

Advantageously, said at least one break wall of a water flow 19a extends vertically inside the water tank 6 according to the height of the water tank 6.

Thus, the flow of water broken by said at least one break wall of a water flow 19a flows vertically inside the water reservoir 6.

Preferably, said at least one break wall of a water flow 19a is disposed above said at least one guide wall of a water flow 19b according to the height of the water tank 6.

Thus, the flow of water broken by said at least one break wall of a water flow 19a flows to said at least one guide wall of a water flow 19b.

Advantageously, said at least one guide wall of a water flow 19b is inclined from top to bottom according to the height of the water tank 6.

Thus, the water flow guided by said at least one guiding wall of a water flow 19b flows by gravity along it, so that it comes into contact with the inner wall 20 of the water tank 6 and flows to along said inner wall 20.

Advantageously, said at least one guiding wall of a water flow 19b extends between two opposite walls 6a, 6b of the water reservoir 6.

Thus, said at least one guide wall of a water flow 19b allows almost all of the water flow leaving said at least one passage opening 42 to be guided.

The water tank 6 comprises an aeration device 26 so that it is allowed to fill with and drain water from the water tank 6.

In a preferred embodiment, said at least one rupture wall of a water flow 19a is at least one rib arranged in a wall 6a, 6b of the water reservoir 6.

Thus, said at least one rib 19a arranged in a wall 6a, 6b of the water reservoir 6 allows an air passage in the upper part of the water reservoir 6 on both sides of said at least one rib 19a while breaking the water jet projected against it from said at least one passage opening 42, in particular when the water level inside the water tank 6 reaches the maximum permissible water level N1 in said water tank 6.

Said at least one breaking wall of a water flow constituted by at least one rib 19a only partially extends between two opposite walls 6a, 6b of the water reservoir 6.

Accordingly, the realization of said at least one break wall of a water flow 19a is simple to perform and inexpensive.

The air passage in the upper part of the water tank 6 on both sides of said at least one rib 19a is in fluidic communication with the aeration device 26 of the water tank 6, in particular with said at least one passage opening of air 44 of the aeration device 26 arranged in a wall 6b of the water tank 6.

In this way, the water level inside the water tank 6 is not limited to the lower point of said at least one rib 19a since an air flow can flow through the aeration device 26 of the tank 6 and on both sides of said at least one rib 19a.

Therefore, the water reservoir 6 can be filled with water to its maximum permissible water level N1.

Therefore, the upper part of the water tank 6 is separated into two areas on both sides of said at least one rib 19a.

In a first zone provided with the aeration device 26 of the water tank 6, during the filling with water of the water tank 6 from the washing tank 3, the air present in this first zone of the water tank 6 is evacuated through the aeration device 26 of the water tank 6.

In a second zone lacking an aeration device of the water tank 6, during filling with water of the water tank 6 from the washing tank 3, the air present in this second zone of the water tank 6 flows through the passage of air formed by said at least one rib 19a arranged in a wall 6a, 6b of the water reservoir 6, then this air is evacuated through the aeration device 26 of the water reservoir 6, in particular from the moment in which the water level in the water tank 6 reaches the lower point of said at least one rib 19a.

The realization of said at least one wall of breakage of a water flow in the form of at least one rib 19a arranged in a wall 6a, 6b of the water tank 6 makes it possible to alleviate the case where a wall of breakage of a water flow it extends from an upper wall of the water tank 6 and between two opposite walls 6a, 6b of the water tank 6, in particular in the form of a partition, preventing an air flow from flowing to both sides thereof as the level of water in the water tank 6 reaches the bottom point of the break wall of a water flow. In this case, the area delimited by the break wall of a water flow that is not put in fluidic communication with the aeration device 26 of the water tank 6 would have constituted a closed space without air circulation. As a result, the water introduced into the water tank 6 could only have risen to the maximum permissible water level N1 in the area bounded by the break wall of a water flow that is put into fluid communication with the aeration device. 26 of the water tank

6.

In this case, said at least one rib 19a arranged in a wall 6a, 6b of the water tank 6 extends from the upper wall of the water tank 6 towards the bottom of the water tank 6. And the bottom point of said to the At least one rib 19a is located below the maximum permissible water level N1 inside the water tank 6.

In this embodiment, the maximum permissible water level N1 inside the water tank 6 is defined by the water inlet opening 17 of the overflow conduit 9. The maximum permissible water level N1 inside the water tank water 6 is therefore just below the water inlet opening 17 of the overflow conduit 9 so that a level of water overflow is defined through said water inlet opening 17 of the overflow conduit 9 during filling with water from the water tank 6 from the wash tank 3.

Advantageously, at least a first rib 19a is disposed on a first wall 6a of the water reservoir 6 and at least a second rib 19a is disposed on a second wall 6b of the water reservoir 6

so that a zigzag passage is formed that allows an air passage in the upper part of the water tank 6 on both sides of the first and second ribs 19a.

Thus, the passage of air in the upper part of the water tank 6 on both sides of the first and second ribs 19a and between them is in fluidic communication with the aeration device 26 of the water tank 6, in particular with said minus an air passage opening 44 of the aeration device 26 arranged in a wall 6b of the water tank 6.

In this way, the water level inside the water tank 6 is not limited to the lower point of the first and second ribs 19a since an air flow can flow through the aeration device 26 of the water tank 6, on both sides of said first and second ribs 19a and between them.

Therefore, the water reservoir 6 can be filled with water to its maximum permissible water level N1.

Therefore, the upper part of the water tank 6 is separated into two zones on both sides of the first and second ribs 19a.

In a first zone provided with the aeration device 26 of the water tank 6, during the filling with water of the water tank 6 from the washing tank 3, the air present in this first zone of the water tank 6 is evacuated through the aeration device 26 of the water tank 6.

In a second zone lacking an aeration device of the water tank 6, during filling with water of the water tank 6 from the washing tank 3, the air present in this second zone of the water tank 6 flows through the passage of air formed by the first and second ribs 19a arranged respectively on the first and second walls 6a, 6b of the water tank 6, then this air is evacuated through the aeration device 26 of the water tank 6, in particular from the moment in which the water level in the water tank 6 reaches the lower point of the first and second ribs 19a.

Preferably, the first and second walls 6a, 6b of the water tank 6 respectively comprising the first and second ribs 19a are two opposite walls 6a, 6b of the water tank 6.

Advantageously, the first and second 19a arranged respectively in the first and second walls 6a, 6b of the water tank 6 are arranged according to the width of the water tank 6.

In this case and in no way absolutely limiting, the first wall 6a of the water tank 6 comprises two first ribs 19a and the second wall 6b of the water tank 6 comprises a second rib 19a. The second rib 19a of the second wall 6b of the water reservoir 6 is disposed between the first two ribs 19a of the first wall 6a of the water reservoir 6 when the two walls 6a, 6b of the water reservoir 6 are joined together.

Said first and second ribs 19a arranged respectively in the first and second walls 6a, 6b of the water tank 6 allow an air passage in the upper part of the water tank 6 on both sides of said ribs 19a while the jet breaks of water projected against them from said at least one passage opening 42.

Particularly, said first and second ribs 19a arranged respectively in the first and second walls 6a, 6b of the water tank 6 allow an air passage in the upper part of the water tank 6 when the water level inside the water tank 6 reaches the maximum permissible water level N1 in said water tank 6, and in particular as soon as the water level inside the water tank 6 reaches the lower point of the first and second ribs 19a located below the level of maximum permissible water N1 in the water tank 6.

Said first and second ribs 19a only extend partly, respectively, between the two opposite walls 6a, 6b of the water reservoir 6.

In one embodiment, said at least one deviation element of a water flow 19a is disposed between said at least one passage opening 42 disposed in the upper part of the water tank 6 and the aeration device 26 of the water tank 6.

Thus, said at least one element of deflection of a water flow 19a disposed inside the water tank 6 makes it possible to avoid a water projection through the aeration device 26 of the water tank 6.

In this way, said at least one deviation element of a water flow 19a disposed inside the water tank 6 makes it possible to guarantee the air flow through the aeration device 26 of the water tank 6 avoiding an obstruction thereof by projections of water from a water flow through said at least one passage opening 42 disposed in the upper part of the water reservoir 6.

In another embodiment, the aeration device 26 of the water reservoir 6 is disposed between said at least one passage opening 42 disposed in the upper part of the water reservoir 6 and said at least one deviation element of a water flow 19th.

The hydraulic water distribution circuit comprises an upper point 25 formed between the water tank 6 and the washing tank 3 of the washing machine 1. The upper point 25 of the hydraulic water distribution circuit is located at the same height or above the maximum permissible water level N1 inside the water tank 6.

The upper point 25 formed between the water tank 6 and the washing tank 3 of the washing machine 1 makes it possible to prevent a transfer of the washing and / or rinsing water from the washing and / or rinsing water tank 6 towards the wash tank 3, and vice versa, through a phenomenon of communicating vessels.

In this case and as illustrated in Figures 1 to 5, the upper point 25 is disposed within the space defined by the walls 6a, 6b of the water reservoir 6 which constitutes the washing water storage area and / or rinse 6c of the water tank 6.

The hydraulic water distribution circuit comprises the first water circulation duct 10 disposed inside the water reservoir 6.

In this case and as illustrated in Figures 1 to 5, the first water circulation duct 10 is disposed within the space defined by the walls 6a, 6b of the water reservoir 6 which constitutes the water storage area for washing and / or rinsing 6c of the water tank 6.

The upper point 25 is formed by the first water circulation duct 10 disposed inside the water tank 6.

The first water circulation duct 10 thus forms an upper point 25 located at the same height or above the maximum permissible water level N1 inside the water reservoir 6.

The upper point 25 of the first water circulation conduit 10 comprises said at least one passage opening 42 which flows into the water reservoir 6, and in particular which flows into the washing water storage area and / or rinse 6c of the water tank 6, so that a transfer of washing and / or rinse water between the water tank 6 and the washing tank 3 of the washing machine 1 is prevented, and vice versa.

And the aeration device 26 of the water tank 6 is in fluidic communication with said at least one passage opening 42 of the first water circulation duct 10 disposed inside the water tank.

6.

Thus, said at least one passage opening 42 of the first water circulation conduit 10 disposed inside the water reservoir 6 flows into the interior of the water reservoir 6 so as to prevent the return of the wash water and / or of rinsing stored in the water tank 6 towards the washing tank 3 of the washing machine 1, and conversely, allowing an introduction of air into the first water circulation duct 10 disposed inside the water tank 6 a through said at least one passage opening 42.

Said at least one passage opening 42 allows air to be drawn from the water tank 6, in particular in the area of the water tank 6 located between the maximum permissible water level N1 and the upper wall of the water tank 6, so that the transfer by siphoning of the washing and / or rinsing water between the water tank 6 and the washing tank 3 of the washing machine 1 is prevented.

The upper point 25 formed by the first water circulation duct 10 disposed inside the water reservoir 6 and disposed between the water reservoir 6 and the washing tank 3 of the washing machine 1 makes it possible to stop the transfer by siphoning the wash and / or rinse water from the water tank 6 to the wash tank 3 of the washing machine 1, and conversely, after the stop of a water circulation pump 11, 12 that puts the water into circulation for washing and / or rinsing between the water tank 6 and the washing tank 3.

In particular, this upper point 25 formed by the first water circulation duct 10 disposed inside the water tank 6 and disposed between the water tank 6 and the washing tank 3 of the washing machine 1 allows the transfer to stop by siphoning the washing and / or rinsing water from the water tank 6 to the washing tank 3 of the washing machine 1, and conversely, after stopping a water circulation pump 11, 12 and before closing of at least one valve 14 disposed respectively between the water tank 6 and the washing tank 3.

A washing machine of this type equipped with a wash and / or rinse water tank allows a partial amount of wash and / or rinse water to be emptied from the water tank 6 into the washing tank 3, and vice versa .

Thus, the amount of wash and / or rinse water put into circulation between the water tank 6 and the wash tank 3, and conversely, can be controlled by a control unit of the washing machine 1.

The air introduced through said at least one passage opening 42 in the first water circulation duct 10 disposed inside the water tank 6 circulates inside the water tank 6 from the aeration device 26 of the water tank water 6 towards said at least one passage opening 42 of the first water circulation conduit 10.

Said at least one passage opening 42 of the first water circulation duct 10 disposed inside the water reservoir 6 thus allows to create an air passage from the outside of the water reservoir 6 into the hydraulic distribution circuit of water through the water tank 6.

Said at least one passage opening 42 disposed in the first water circulation conduit 10 also allows a part of the water circulating in the first water circulation conduit 10 to be directly evacuated into the water reservoir 6 while avoiding a complementary connection between said at least one passage opening 42 disposed at the level of the upper point 25 of the first water circulation duct 10 and a recovery zone of this quantity of evacuated water so that the hydraulic water distribution circuit is simplified and the cost of obtaining it is minimized.

In this way, the fluidic communication between said at least one passage opening 42 of the first water circulation conduit 10 disposed inside the water tank 6 and the aeration device 26 of the water tank 6 makes it possible to guarantee the filling with, and the emptying of, washing and / or rinsing water from the water tank 6 in a reliable, simple and inexpensive manner.

Said at least one passage opening 42 disposed at the level of the upper point 25 of the hydraulic water distribution circuit between the washing tank 3 and the water tank 6, wherein the upper point 25 is formed by the first circulation duct of water 10 disposed inside the water reservoir 6, and the fluidic communication of said at least one passage opening 42 with the aeration device 26 of the water reservoir 6 makes it possible to avoid a decrease of the water level inside the water tank 6 after filling with water from the washing tank 3 caused by a siphoning phenomenon of the water contained in the water tank 6 towards the washing tank 3 after the stop of said at least one water circulation pump 11 which allows the water tank 6 to be filled with water from the washing tank 3, in particular the first water circulation pump 11.

This phenomenon of siphoning of the water contained in the water tank 6 towards the washing tank 3 after stopping said at least one water circulation pump 11 is prevented by introducing air into said at least one passage opening 42 of the first water circulation duct 10 disposed inside the water tank 6, wherein the air is previously introduced into the water tank 6 by the aeration device 26 of the latter.

Therefore, the water level inside the water tank 6 remains stable from the stop of said at least one water circulation pump 11 which allows the water tank 6 to be filled with water from the washing tank 3 regardless of the closing time of said at least one valve 14, and in particular of the sealing of the water flow passage 40b by the flap 30, where the flap 30 is moved by the actuator 27b.

In addition, the placement of the upper point 25 of the hydraulic water distribution circuit inside the water tank 6 and the formation thereof by means of a first water circulation duct 10 disposed inside the water tank 6 make it possible to minimize the space occupied by the hydraulic water distribution circuit and the water tank 6.

On the other hand, such a construction of the hydraulic water distribution circuit between the washing tank 3 of the washing machine 1 and the water tank 6 is simplified and makes it possible to dispense with a closing and opening device for the aeration 26 of the water tank 6 and a water level sensor that detects the maximum water level in the water tank 6.

Such a construction of the hydraulic water distribution circuit between the washing tank 3 of the washing machine 1 and the water tank 6 also allows a water tank 6 to be arranged inside the frame 2 of the washing machine 1 extending in height from a lower wall 2c to an upper wall 2b of the frame 2 of the washing machine 1.

In practice, the upper point 25 of the first water circulation duct 10 is arranged at the level of the

connection between first and second parts 10a, 10b of the first water circulation conduit 10, wherein the first and second parts 10a, 10b of the first water circulation conduit 10 extend respectively inside the water reservoir 6 and from the bottom towards the top of the water tank 6.

Thus, the two parts 10a, 10b that constitute the first water circulation duct 10 are integrated inside the water reservoir 6 and connected to each other so that the upper point 25 of the hydraulic water distribution circuit is formed between the water storage area 6c of the water tank 6 and the washing tank 3 of the washing machine 1.

In this way, the construction of the hydraulic water distribution circuit is simplified and makes it possible to limit the use of flexible pipes from a hydraulic element in which the upper point of the hydraulic water distribution circuit is formed towards the water tank and towards the wash tank of the washing machine.

Preferably, said at least one passage opening 42 is located at the apex of the upper point 25 formed by the first water circulation conduit 10 disposed inside the water reservoir 6.

Thus, during the circulation of the wash and / or rinse water inside the first water circulation duct 10, the amount of wash and / or rinse water evacuated by said at least one passage opening is minimized 42 into the water tank 6.

In addition, such placement of said at least one passage opening 42 makes it possible to prevent the entry of wash and / or rinse water from the water reservoir 6 into the first water circulation conduit 10 disposed inside the reservoir. of water 6, when the water level inside the water tank 6 exceeds the maximum permissible water level N1, and in particular when the water level inside the water tank 6 exceeds the inlet opening 17 of the conduit of overflow 9 arranged inside the water tank 6.

Said aeration device 26 of the water tank 6 comprises at least one air passage opening 44 arranged in a wall 6b of the water tank 6.

Advantageously, said at least one diverting element of a water flow 19a is disposed between said at least one passage opening 42 of the first water circulation conduit 10 disposed inside the water reservoir 6 and said at least one opening of air passage 44 of the aeration device 26 of the water reservoir 6, so that a flow of water flowing from said at least one passage opening 42 of the first water circulation conduit 10 in the direction of said at least one air passage opening 44 of the aeration device 26 of the water reservoir 6.

Thus, said at least one element of deflection of a water flow 19a disposed inside the water tank 6 makes it possible to avoid a water projection through the aeration device 26 of the water tank 6.

In this way, said at least one deviation element of a water flow 19a disposed inside the water tank 6 makes it possible to guarantee the air flow through the aeration device 26 of the water tank 6 avoiding an obstruction thereof by projections of water from a water flow through said at least one passage opening 42 of the first water circulation conduit 10 disposed inside the water reservoir 6.

In another embodiment, said at least one air passage opening 44 of the aeration device 26 of the water reservoir 6 is disposed between said at least one passage opening 42 of the first water circulation conduit 10 disposed within the interior of the water reservoir 6 and said at least one deviation element of a water flow 19a.

Advantageously, the aeration device 26 of the water tank 6 comprises an air flow tube 36 connected to an area 37 in fluidic communication with the washing tank 3 of the washing machine 1.

Thus, the wash and / or rinse water tank 6 comprises an aeration device 26 that allows to guarantee the filling with, and the emptying of, washing and / or rinse water inside it. The aeration of the water tank 6 is guaranteed by the air flow tube 36 that connects the water tank 6 to the washing tank 3 of the washing machine 1.

In addition, the aeration device 26 of the water reservoir 6 is in fluidic communication with said at least one air passage opening 42 of the first water circulation conduit 10 disposed inside the water reservoir 6 so as to prevent the return of the wash and / or rinse water stored in the water tank 6 towards the wash tank 3 of the washing machine 1, and conversely, allowing an introduction of air into said first water circulation duct 10.

In this way, the hydraulic water distribution circuit between the washing tank 3 of the washing machine 1 and the water tank 6 is simple and inexpensive.

The washing tank 3 of the washing machine 1 comprises an appropriate aeration device 43 known in itself, and it is not necessary to describe it in more detail herein.

Advantageously, the area 37 in fluidic communication with the washing tank 3 of the washing machine 1 connected to the air flow tube 36 of the aeration device 26 of the water tank 6 is a water supply distributor (not shown) of the washing machine 1.

In one embodiment, the water supply distributor feeds compartments of a box for detergent products with water. This water supply distributor may in particular be a rotating nozzle distributor.

In this case, the water flow section of the air flow tube 36 of the aeration device 26 of the water reservoir 6 is smaller than the water flow section of the overflow conduit 9.

Throughout the filling with wash and / or rinse water of the water tank 6 from the wash tank 3, the air flow tube 36 of the aeration device 26 of the water tank 6 can be filled with water when the level of water in the water tank 6 exceeds the maximum permissible water level N1 in it.

The amount of water introduced into the air flow tube 36 of the aeration device 26 of the water tank 6 is less than the amount of water evacuated through the overflow conduit 9 and does not generate an increase in the emptying time of the water tank. washing 3 towards the water tank 6 with respect to the amount of water put into circulation between the washing tank 3 and the water tank 6.

In another embodiment, the zone 37 in fluidic communication with the washing tank 3 of the washing machine 1 where the air flow tube 36 ends can be either the washing tank 3 itself, or a chamber that connect a detergent dispenser to the wash tank 3, or a chamber of a detergent dispenser, or at the level of a connection sleeve of the wash tank 3 to the frame 2 of the washing machine 1.

Obviously, the examples of the area in fluidic communication with the washing tank of the washing machine defined above are not at all limiting and may be different.

The zone 37 in fluidic communication with the washing tank 3 of the washing machine 1 where the air flow tube 36 ends is located above the maximum permissible water level N3 in the washing tank 3.

Thus, the position of the zone 37 in fluidic communication with the washing tank 3 of the washing machine 1 above the maximum permissible water level N3 in the washing tank 3 makes it possible to avoid a phenomenon of acoustic turbulence linked to an inlet of air from the water reservoir 6 by the air flow tube 36 below the water level in the washing tank 3, and which can be amplified by the washing tank 3 itself, in particular during filling with washing water and / or rinse the water tank 6 from the wash tank 3.

In addition, the position of the zone 37 in fluidic communication with the washing tank 3 of the washing machine 1 above the maximum permissible water level N3 in the washing tank 3 makes it possible to prevent water circulation through the flow tube of air 36 towards the water tank 6, in particular during a phase of a cycle of operation of the washing machine 1.

In this way, the wash and / or rinse water stored in the water tank cannot be soiled by the wash and / or rinse water of the wash tank 3 used during a phase of a machine operating cycle for washing 1 and which is not intended to be stored in the water tank 6.

By way of example in no way limiting, the air flow tube 36 of the aeration device 26 of the water reservoir 6 is directly connected to said at least one air passage opening 44 arranged in a wall 6b of the water reservoir 6. And the air flow tube 36 of the aeration device 26 of the water reservoir 6 is directly connected to at least one air passage opening disposed in the water supply distributor.

The air flow tube 36 of the aeration device 26 of the water tank 6 has a lower section than that of one of the water flow ducts 7, 8, 9, 10.

The water flow ducts 7, 8, 9, 10 can have a diameter of the order of 15 mm to 20 mm and the air flow tube 36 can have a diameter of 2 mm to 5 mm.

Obviously, the values of the water flow ducts and the air flow tube are not at all

limiting and may be different.

The hydraulic water distribution circuit comprises an overflow conduit 9 disposed inside the water reservoir 6.

The overflow conduit 9 disposed inside the water tank 6 is placed in fluidic communication with an external sewage network 13.

In this case and as illustrated in Figures 1 to 5, the overflow conduit 9 is disposed within the space defined by the walls 6a, 6b of the water reservoir 6 which constitutes the washing water storage area and / or rinse 6c of the water tank 6.

Thus, a washing machine 1 of this type having a wash and / or rinse water tank 6 where the hydraulic water distribution circuit of the washing machine 1 comprises an overflow conduit 9 disposed inside the water tank 6 and placed in fluidic communication with an external sewage network 13 allows to dispense with a water level sensor mounted in the water tank 6 that detects the upper level of water inside the water tank 6.

In this way, filling with washing and / or rinsing water of the water tank 6 from the washing tank 3 of the washing machine 1 is performed by activating said at least one water circulation pump 11 without controlling the level of water inside the water tank 6.

In the case where the amount of washing and / or rinsing water present in the washing tank 3 of the washing machine 1 is greater than the capacity of the water tank 6, the excess water is evacuated directly to a network of external wastewater 13 by means of the overflow conduit 9 disposed inside the water tank 6.

In addition, a washing machine 1 of this type having a wash and / or rinse water tank 6 is less expensive and easier to assemble.

The overflow conduit 9 comprises a water inlet opening 17.

Preferably, the stopping of said at least one water circulation pump 11, along the filling with washing water and / or rinsing of the water tank 6 from the washing tank 3 of the washing machine 1, is controlled by a control unit of the washing machine 1 after at least the detection of a lower level of water in the washing tank 3.

Thus, the control unit allows to control the water level inside the washing tank 3 and to detect the lower level of water in the washing tank 3 during the filling with washing water and / or rinse of the water tank 6 from the washing tank 3 so that a stop order of said at least one water circulation pump 11 is generated from the detection of the lower water level in the washing tank 3.

In practice, the detection of a lower level of water in the washing tank 3 of the washing machine 1 is implemented by means of a water level sensor 21 mounted in the washing tank 1 and functionally connected to the washing machine control unit 1.

Thus, the cost of obtaining the washing machine 1 that has a washing and / or rinsing water tank 6 is not increased by the water level sensor 21 mounted in the washing tank 3 since it is already present in washing machines to control the water level inside the washing tank 3.

By way of example, in no way limited, the water level sensor 21 mounted in the washing tank 3 can be an electromechanical pressure switch that allows identifying at least a lower level and a higher level of washing and / or rinsing water in the wash tank 3, or a continuous pressure sensor, for example of the analog type, which allows to measure the height of wash and / or rinse water in the wash tank 3.

Advantageously, the water inlet opening 17 of the overflow conduit 9 is located below said at least one air passage opening 44 of the aeration device 26 of the water tank 6 according to the height of the water tank 6.

Thus, the overflow conduit 9 disposed inside the water tank 6 allows an excess of water introduced into the water tank 6 to be evacuated to the external wastewater network 13, in particular by means of said at least one valve 14 and of the drain duct 8, while preventing a flow of water from flowing through said at least one air passage opening 44 of the aeration device 26 of the water reservoir 6 which can lead to a disturbance of the air flow that at least one air passage opening 44 of the aeration device 26 of the water tank 6 flows through said water during filling with water of the water tank 6.

On the other hand, in the case where an excess of water introduced into the water tank 6 cannot be evacuated through the overflow conduit 9 disposed inside the water tank 6, this excess water can be evacuated by the aeration device 26 of the water tank 6 when it is connected to the zone 37 in fluid communication with the washing tank 3 by means of the air flow tube 36.

Advantageously, the water inlet opening 17 of the overflow conduit 9 is located above the bottom of said at least one wall of deflection of a water flow 19a according to the height of the water tank

6.

Preferably, said at least one diverting element of a water flow 19a is disposed between said at least one passage opening 42 of the first water circulation conduit 10 disposed inside the water reservoir 6 and the water inlet opening 17 of the overflow conduit 9, such that a flow of water flowing from said at least one passage opening 42 of the first water circulation conduit 10 in the direction of the water inlet opening 17 of the overflow conduit 9 is diverted .

Thus, said at least one element of deflection of a water flow 19a disposed inside the water tank 6 makes it possible to avoid a water projection through the water inlet opening 17 of the overflow conduit 9.

In this way, said at least one element of deflection of a water flow 19a disposed inside the water reservoir 6 makes it possible to prevent an obstruction thereof by means of water projections coming from a water flow through said at least one opening of step 42 of the first water circulation duct 10 disposed inside the water reservoir 6.

In one embodiment, said at least one diverting element of a water flow 19a disposed between said at least one passage opening 42 of the first water circulation conduit 10 disposed inside the water reservoir 6 and said at least an air passage opening 44 of the aeration device 26 of the water reservoir 6 is the same as said at least one deviation element of a water flow 19a disposed between said at least one passage opening 42 of the first circulation passage of water 10 disposed inside the water reservoir 6 and a water inlet opening 17 of the overflow conduit 9.

The first water circulation duct 10 disposed inside the water tank 6 is connected to said at least one valve 14 mounted in the water tank 6.

The first water circulation duct 10 forms the upper point 25 located at the same height or above the maximum permissible water level N1 inside the water reservoir 6.

Advantageously, the upper point 25 of the first water circulation conduit 10 is located at the same height as the water inlet opening 17 of the overflow conduit 9 according to the height of the water reservoir 6.

Thus, the upper point 25 of the first water circulation conduit 10 is aligned with the water inlet opening 17 of the overflow conduit 9 according to the height of the water reservoir 6 so that the water capacity of the water reservoir is maximized 6.

Placing the water inlet opening 17 of the overflow conduit 9 below the upper point 25 of the first water circulation conduit 10 according to the height of the water tank 6 would result in a decrease in the water capacity of the water tank 6 , that is to say that the position of the maximum permissible water level N1 in the water tank 6 would be lower.

Placing the water inlet opening 17 of the overflow conduit 9 above the upper point 25 of the first water circulation conduit 10 according to the height of the water reservoir 6 would cause a delay in the evacuation of excess wash water and / or rinse introduced into the water tank 6 from the wash tank 3, that is to say that the amount of wash and / or rinse water introduced into the water tank 6 would exceed the maximum permissible water level N1 in the tank of water 6. Excess wash and / or rinse water introduced into the water reservoir 6 and exceeding the inlet opening 17 of the overflow conduit 9 would be evacuated through it. Meanwhile, the excess wash and / or rinse water introduced into the water reservoir 6 and which is located between the upper point 25 of the first water circulation conduit 10 and the inlet opening 17 of the overflow conduit 9 according to the height of the water tank 6 would be evacuated through the first water circulation duct 10 towards the washing tank 3 after the stop of the first water circulation pump 11, and in particular before the shut-off of the water flow passage 40b through the valve flap 30 30.

The overflow conduit 9 is connected to said at least one valve 14 mounted in the water tank 6.

Said at least one valve 14 is connected to a drain conduit 8. The drain conduit 8 is placed in

fluidic communication with an external wastewater network 13.

Preferably, the overflow conduit 9 disposed inside the water tank 6 and the aeration device 26 of the water tank 6 are independent.

Thus, the overflow conduit 9 disposed inside the water tank 6 allows an excess of water introduced into the water tank 6 to be evacuated to the external wastewater network 13, in particular by means of said at least one valve 14 and of the drain duct 8.

And the aeration device 26 of the water tank 6 allows the evacuation of air during the filling with water of the water tank 6 or the introduction of air during the emptying of water from the water tank 6. This displacement of air inside the Water tank 6 also allows to prevent the return of the washing and / or rinsing water stored in the water tank 6 towards the washing tank 3, and conversely, allowing an introduction of air through said at least one opening of step 42 disposed in the first water circulation duct 10 disposed inside the water tank 6. Therefore, this impediment of the return of the wash and / or rinse water stored in the water tank 6 towards the tank can occur wash 3, and vice versa, since said aeration device 26 of the water tank 6 is in fluidic communication with said at least one passage opening 42 of the first water circulation conduit 10 di inside the water tank 6.

In the case where an excess of water introduced into the water tank 6 cannot be evacuated through the overflow conduit 9 disposed inside the water tank 6, this excess water can be evacuated by the aeration device 26 of the water tank water 6 when it is connected to zone 37 in fluidic communication with the washing tank 3 by means of the air flow tube 36.

Preferably, the first water circulation conduit 10 is in fluidic communication with a water circulation pump 12, in particular the second water circulation pump 12 of the water distribution circuit of the washing machine 1, mounted in the tank of water 6 and located at a lower point of the water tank 6.

In this case and in an absolutely non-limiting manner, the second water circulation pump 12 is fixed by means of screwing in the wall 6b of the water tank 6.

Advantageously, the second water circulation pump 12 and said at least one valve 14 are mounted in the water tank 6, and in particular in the wall 6b of the water tank 6.

Thus, the washing machine 1 comprises the part of the hydraulic water distribution circuit necessary for its operation without or with the water tank 6. The washing and / or rinsing water tank 6 can therefore be installed in the washing machine 1 without modifying the internal water distribution hydraulic circuit to the washing machine 1.

In one embodiment, the wash and / or rinse water flows into a single water flow duct 7 from the wash tank 3 to the water tank 6, and vice versa.

Thus, the connection between the washing machine 1 and the water tank 6 is simplified and minimizes the costs of obtaining the washing machine 1.

Advantageously, the second part 7b of the second water circulation conduit 7 is disposed inside the water reservoir 6, the second water circulation conduit 7 being on one side connected to said at least one valve 14 and on the other hand placed in fluidic communication with the washing tank 3.

In one embodiment, the water tank 6 comprises two walls 6a, 6b in the form of a housing.

A first housing 6a may constitute a part of a wall of the frame 2 of the washing machine 1, in particular of the front wall 2a of the frame 2.

A second housing 6b is arranged inside the frame 2 of the washing machine 1 and comprises the operating elements of the water tank 6, such as the valve 14 and the water circulation pump 12, as well as the aeration device 26 of the water tank 6.

The washing and / or rinse water storage area 6c of the water tank 6 is formed by assembling the two housings 6a, 6b of the water tank 6.

The first water circulation conduit 10, the overflow conduit 9 and the second part 7b of the second water circulation conduit 7 are arranged inside the water reservoir 6 and are formed by assembling the two housings 6a, 6b of the water tank 6.

The fixing of the two walls 6a, 6b in the form of a housing of the water tank 6 can be done by welding.

Obviously, the way of fixing the two casing walls of the water tank is not at all limiting and can be different, in particular by screwing.

The operation of a washing machine according to an embodiment of the invention will now be described.

The first water circulation pump 11 is adapted to empty at least part of the wash and / or rinse water from the wash tank 3 to the water tank 6 generating a flow of wash and / or rinse water that said at least one valve 14 passes through and the second water circulation pump 12 which is inactive.

Thus, the washing and / or rinsing water contained in the washing tank 3 of the washing machine 1 can be emptied into the water tank 6 so that it can be reused during a subsequent phase of a water cycle. operation in progress or during a subsequent operation cycle by storing the wash and / or rinse water in the water tank 6.

The emptying of the washing and / or rinsing water contained in the washing tank 3 of the washing machine 1 is carried out by activating the first water circulation pump 11 installed in the washing machine 1, opening an outlet opening of the valve 14 and keeping the second water circulation pump 12 stopped so that a water flow is circulated between the washing tank 3 of the washing machine 1 and the water tank 6.

In this way, the wash and / or rinse water can pass through the second water circulation pump 12 without opposing resistance when the first water circulation pump 11 is operated so that the washing water and / or or rinse contained in the washing tank 3 of the washing machine 1 inside the water tank 6.

The wash and / or rinse water can pass through the second water circulation pump 12 thanks to the internal strokes of this second water circulation pump 12 when the first water circulation pump 11 is put into operation.

And, the second water circulation pump 12 is adapted to empty at least part of the wash and / or rinse water from the water tank 6 to the wash tank 3 generating a flow of wash water and / or water cleared that it crosses the valve 14 and the first water circulation pump 11 that is inactive.

Thus, the wash and / or rinse water contained in the water tank 6 can be emptied into the wash tank 3 of the washing machine 1 so that it is reused during a subsequent phase of an ongoing operating cycle. or during a subsequent operating cycle after storage of the wash and / or rinse water in the water tank 6.

The emptying of the wash and / or rinse water contained in the water tank 6 is carried out by activating the second water circulation pump 12 installed in the water tank 6, opening an outlet opening of the valve 14 and keeping it stopped. the first water circulation pump 11 so that a water flow is circulated between the water tank 6 and the washing tank 3 of the washing machine 1.

In this way, the wash and / or rinse water can pass through the first water circulation pump 11 without any resistance when the second water circulation pump 12 is operated so that the washing water and / or rinse contained in the water tank 6 inside the washing tank 3 of the washing machine 1.

The wash and / or rinse water can pass through the first water circulation pump 11 thanks to the internal strokes of this first water circulation pump 11 when the second water circulation pump 12 is put into operation.

In this embodiment, said at least one valve 14 is a single three-way valve that makes it possible to select the emptying of the washing tank 3 of the washing machine 1 towards the water tank 6 or towards the external wastewater network 13, or the emptying of the water tank 6 towards the washing tank 3 of the washing machine 1 or towards the external sewage network 13, and evacuating the excess water introduced in the water tank 6 to the water network external residuals 13.

The use of a valve 14 comprising three ways makes it possible to reduce the costs of obtaining the washing machine 1 equipped with a wash and / or rinse water tank 6 and simplify the management of the selection of

the direction of the wash and / or rinse water flows 6 in the hydraulic water distribution circuit of the washing machine 1.

Obviously, the use of a single valve for selecting the direction of the different water flows is not at all limiting and this selection can be carried out by means of several valves.

Figure 2 illustrates a phase of emptying the washing tank 3 of the washing machine 1 into the external sewage network 13.

This phase of emptying the washing tank 3 of the washing machine 1 into the external wastewater network 13 is carried out by activating the first water circulation pump 11, opening the valve 14 from the washing tank 3 of the machine for wash 1 towards the external wastewater network 13 and circulating the wash and / or rinse water through the second water circulation duct 7 and the drain duct 8.

The water flow does not pass through the water tank 6 or the second water circulation pump 12 for emptying the wash and / or rinse water contained in the wash tank 3 of the washing machine 1 into the water network external residuals 13.

During this phase of emptying the washing tank 3 of the washing machine 1 into the external sewage network 13, the water tank 6 can be either full or empty.

In Figure 2, during the emptying phase of the washing tank 3 of the washing machine 1 towards the external sewage network 13, the valve 14 is in an initial position where a water flow flows from the washing tank washing 3 of the washing machine 1 to the external sewage network 13 through said valve

14. Water flow enters through the water inlet / outlet opening 31 and out through the water outlet opening 33 of the valve 14.

Throughout this phase of emptying the washing tank 3 of the washing machine 1 into the external sewage network 13, the actuators 27a, 27b of the valve 14 are not energized.

Thus, the flaps 28, 29, 30 of the valve 14 are not actuated and remain in the initial position. The flappers 28, 29, 30 respectively seal the water flow passages 38a, 39, 40a. The water flow passages 38b, 40b are then opened to allow the flow of water flow through the water flow passages 38b, 40b.

In this way, the washing tank 3 of the washing machine 1 can be emptied when the valve 14 is damaged. Therefore, the washing machine 1 can be started without using the water tank 6.

Figure 3 illustrates a phase of emptying the water tank 6 into the external wastewater network 13.

This phase of emptying the water tank 6 towards the external wastewater network 13 is carried out by activating the second water circulation pump 12, opening the valve 14 from the water tank 6 to the external wastewater network 13 and putting the wash and / or rinse water circulates through the first water circulation duct 10 and the drain duct 8.

The water flow does not pass through the first water circulation pump 11 for emptying the wash and / or rinse water contained in the water tank 6 towards the external wastewater network 13.

This phase of emptying the water tank 6 can be carried out either automatically or manually.

The automatic emptying of the water tank 6 can be carried out periodically after determining that a predetermined period is reached without using the washing machine 1 by means of a control unit of said washing machine 1.

In this way, the second water circulation pump 12 can be automatically operated to empty the wash and / or rinse water from the water tank 6 to the external sewage network 13 thanks to the machine control unit to wash 1.

Manual emptying of the water tank 6 can be carried out after activation by the user of an order to empty the water tank 6 sent to the control unit of the washing machine 1.

The user may wish to empty the wash and / or rinse water from the water tank 6 to the external sewage network 13, in particular, in case there is a fear that there is a load of stained clothing, in doubt regarding the wash and / or rinse water collected, or even for the movement of the machine to

wash 1.

In Fig. 3, during the emptying phase of the water tank 6 towards the external wastewater network 13, a water flow flows from the water tank 6 to the external wastewater network 13 through the valve

14. Water flow enters through the water inlet / outlet opening 32 and out through the water outlet opening 33 of the valve 14.

Throughout this phase of emptying the water tank 6 into the external wastewater network 13, the actuator 27a of the valve 14 is not energized while the actuator 27b is supplied with energy.

Thus, the flaps 28, 29 of the valve 14 are not operated while the flap 30 is actuated. The flaps 28, 29, 30 respectively seal the water flow passages 38a, 39, 40b. The water flow passages 38b, 40a are then opened to allow the flow of water flow through the water flow passages 38b, 40a.

With reference to figure 1, during the emptying phase of the water tank 6, the introduction of air into the water tank 6 is guaranteed by means of the aeration device 43 of the washing tank 3 connected to the zone 37 of the tank of washing 3, and by means of the aeration device 26 of the water tank 6 that connects a zone 37 in fluidic communication with the washing tank 3 to the water tank 6 through the air flow tube 36.

In this way, the water tank 6 is filled with air as it is emptied of the wash and / or rinse water.

Figure 4 illustrates a phase of emptying the washing tank 3 of the washing machine 1 into the water tank 6 so that the washing and / or rinsing water used during a phase of a set operating cycle is recovered in practice by the washing machine 1.

This phase of emptying the washing tank 3 of the washing machine 1 into the water tank 6 is carried out by activating the first water circulation pump 11, opening the valve 14 from the washing tank 3 of the washing machine 1 towards the water tank 6, circulating the wash and / or rinse water through the second water circulation duct 7, the first water circulation duct 10 and through the second water circulation pump 12 which is in stop

In figure 4, during the emptying phase of the washing tank 3 of the washing machine 1 towards the water tank 6, a flow of water flows from the washing tank 3 of the washing machine 1 to the washing tank water 6 through the valve 14. The water flow enters through the water inlet / outlet opening 31 and out through the water inlet / outlet opening 32 of the valve 14.

Throughout this phase of emptying the washing tank 3 of the washing machine 1 into the water tank 6, the actuator 27b of the valve 14 is not energized while the actuator 27a is supplied with energy.

Thus, the flaps 28, 29 of the valve 14 are operated while the flap 30 is not actuated. The flaps 28, 30 respectively seal the water flow passages 38b, 40a. The water flow passages 38a, 40b are then opened to allow the flow of water flow through the water flow passages 38a, 40b.

In this way, the water tank 6 is filled with wash and / or rinse water from the wash tank 3 of the washing machine 1 as the water tank 6 is emptied of the air contained inside by the aeration device 26 of the water tank 6.

The air leaving said at least one air passage opening 44 disposed in a wall of the water tank 6 is evacuated to the outside through the washing tank 3 of the washing machine 1.

In this case, the water tank 6 is emptied of the air contained therein, this air flow passing through said at least one air passage opening 44 arranged in a wall 6b of the water tank 6, then circulating through of the air flow tube 36 which flows into an area 37 in fluidic communication with the washing tank 3 of the washing machine 1.

In this way, the air contained inside the water tank 6 is evacuated through the air flow tube 36 to the area 37 in fluidic communication with the washing tank 3 of the washing machine 1, then outside the washing tank 3 by means of an aeration device 43 of the latter.

Thus, a phenomenon of acoustic turbulence is avoided by sending the air contained in the water tank 6 towards an area 37 in fluid communication with the washing tank 3 of the washing machine 1 instead of sending the air to

the external wastewater network 13.

The phenomenon of acoustic turbulence linked to the sending of air contained inside the water tank 6 to the external sewage network 13 is due to the installation of the drain duct 8 which generally comprises a bending 45 that causes a water stagnation in this point.

During the filling with wash and / or rinse water of the water tank 6, the air that escapes from the water tank 6 to the external sewage network 13 through the drain line 8 is blocked by standing water in the bending 45 of the emptying duct 8, and causes an acoustic turbulence amplified by the rest of the emptying duct 8. This phenomenon of acoustic turbulence is unpleasant for the user and he may consider this to be a fault.

The connection of the water tank 6 to the zone 37 in fluidic communication with the washing tank 3 of the washing machine 1 through the air flow tube 36 allows the air contained inside the water tank 6 to be evacuated to the outside so that the phenomenon of acoustic turbulence linked to the sending of air to the external wastewater network is suppressed 13.

An excess of wash and / or rinse water fed to the water reservoir 6 is automatically evacuated through the overflow conduit 9 to the valve 14, then to the drain conduit 8 to the external wastewater network 13.

In Fig. 4, when an excess of washing and / or rinsing water is fed to the water tank 6 along the emptying phase of the washing tank 3 of the washing machine 1 towards the water tank 6 , a flow of water flows from the overflow conduit 9 of the water reservoir 6 to the external sewage network 13 through the valve 14 and the drain conduit 8. The water flow enters the water inlet opening 17 of the conduit overflow 9, then through the water inlet opening 41 of the valve 14 and exits through the water outlet opening 33 of the valve 14.

Throughout this phase of emptying the washing tank 3 of the washing machine 1 towards the water tank 6, the flap 28 closes the water flow passage 38b so that the water flow that feeds with is separated wash and / or rinse water the water tank 6 from the wash tank 3 and the flow of water flowing from the overflow conduit 9 of the water tank 6 to the external wastewater network 13.

The water flow passages 38a, 40b are then opened to allow the circulation of the water flow through the water flow passages 38a, 40b so that the water reservoir is fed with wash water and / or rinse 6 from the wash tank 3. And the water flow passage 39 is opened to allow the circulation of the water flow through the water flow passage 39 so that the excess water introduced into the water tank is evacuated 6 towards the external wastewater network 13.

A small amount of wash and / or rinse water can pass through the aeration device 26 of the water reservoir 6 when the overflow conduit 9 is full and the flow of water entering the water reservoir 6 is greater than water flow flowing to the overflow conduit 9.

In particular, a small amount of wash and / or rinse water can pass through the air flow tube 36 and return to the wash tank 3 of the washing machine 1 without causing any incident or for the operation of the washing machine 1 or for clothes that can be placed in the drum enclosed in said washing tank 3.

Figure 5 illustrates a phase of emptying the water tank 6 into the washing tank 3 of the washing machine 1 so that the washing and / or rinsing water used during a phase of an operating cycle put into use is reused practical by the washing machine 1 and stored in the water tank 6.

This phase of emptying the water tank 6 towards the washing tank 3 of the washing machine 1 is carried out by activating the second water circulation pump 12, opening the valve 14 from the water tank 6 towards the washing tank 3 of the washing machine 1, circulating the wash and / or rinse water through the first and second water circulation lines 10, 7 and through the first water circulation pump 11 that is stopped.

During the emptying phases of the washing and / or rinsing water of the washing tank 3 of the washing machine 1 towards the water tank 6, and conversely, these are hydraulically coupled by means of the valve 14.

In figure 5, during the emptying phase of the water tank 6 towards the washing tank 3 of the washing machine 1, a water flow flows from the water tank 6 towards the washing tank 3 of the washing machine 1 crossing the valve 14. Water flow enters through the water inlet / outlet opening 32 and out through the water inlet / outlet opening 31 of the valve 14.

Throughout this phase of emptying the water tank 6 into the washing tank 3 of the washing machine 1, the actuator 27b of the valve 14 is not energized while the actuator 27a is supplied with energy.

Thus, the flaps 28, 29 of the valve 14 are operated while the flap 30 is not actuated. The flaps 28, 30 respectively seal the water flow passages 38b, 40a. The water flow passages 38a, 40b are then opened to allow the flow of water flow through the water flow passages 38a, 40b.

In this way, the water tank 6 is filled with air by the aeration device 26 of the water tank 6 as it is emptied of the wash and / or rinse water contained inside the water tank 6 towards the wash tank 3 of the washing machine 1.

The air entering through said at least one air passage opening 44 disposed in a wall 6b of the water tank 6 is drawn from the outside through the washing tank 3 of the washing machine 1.

In this case, the water tank 6 is filled with air from the washing tank 3 of the washing machine 1, this air flow circulating through the air flow tube 36, said passage passing through at least one passage opening of air 44 arranged in a wall 6b of the water tank 6, and flowing into the water tank 6.

In this way, the introduction of air into the water tank 6 is guaranteed by suction of air through an aeration device 43 of the washing tank 3, of an area 37 in fluidic communication with the washing tank 3, then in the air flow tube 36 to the water tank 6.

The two flaps 28, 29 can be connected by a link 18 so that simultaneous opening and closing of the water flow passages 38a, 38b, 39 is allowed.

These two flappers 28, 29 operate simultaneously in opening and closing. Therefore, a single actuator 27a associated with a linkage 18 is necessary to allow the movement of these flaps 28, 29 so that the costs of obtaining the valve 14 are minimized and the management of the latter is simplified by the control unit of the washing machine 1.

The valve flap 28 of the valve 14 is in the open position every time the water tank 6 is in hydraulic communication with the washing tank 3 of the washing machine 1. Accordingly, the volume of air and water varies in the Water tank 6 with each water transfer between them.

The valve flap 29 of the valve 14 also goes into the open position during filling with water of the water tank 6 from the washing tank 3 of the washing machine 1 so that an excess of water introduced into the water tank 6 is evacuates through the overflow conduit 9, then through the valve 14, and in particular through the water flow passage 39, and then in the drain conduit 8 to the external wastewater network 13.

In this way, if the amount of washing and / or rinsing water from the washing tank 3 of the washing machine 1 is too important and cannot enter the water tank 6, then the water flow passage 39 of the valve 14 cleared by the opening of the flap 29 allows the excess washing and / or rinsing water to be sent to the external sewage network 13 of the washing machine 1.

In addition, the valve flap 29 of the valve 14 closes in the case of the emptying of the washing water and / or rinsing of the washing tank 3 of the washing machine 1 or of the water tank 6 towards the external wastewater network 13 so that washing and / or rinsing water is prevented from entering the water tank 6 by rising through the overflow conduit 9.

Therefore, these two flaps 28, 29 can be physically connected to each other by means of a link 18 and operated simultaneously by a single actuator 27a.

The washing machine 1 comprises a control unit, in particular a microcontroller, which allows operating cycles thereof to be implemented.

The control unit of the washing machine 1 allows to control the filling with, and the emptying of, washing and / or rinsing water of the water tank 6 by means of the first and second water circulation pumps 11, 12 and of said at least one valve 14.

The control unit of the washing machine 1 allows the washing tank 3 to be fed with water with water from the external water network and / or with wash and / or rinse water from the water tank 6.

The water supply of the washing tank 3 of the washing machine 1 is carried out with water from

the external water network and / or with washing and / or rinsing water from the water tank 6 depending, in particular, on the phases of the operating cycle implemented by the washing machine 1, of the amount of water contained in the water tank 6.

Obviously, the parameters that define the source of the water supply of the wash tank are not at all limiting and may be different.

The control unit of the washing machine 1 also allows the washing tank 3 and / or the water tank 6 to be emptied into the external wastewater network 13 depending, in particular, on the phases of the operating cycle implemented by the washing machine 1, of the amount of water contained in the water tank 6, of the level of dirt in the water.

Obviously, the parameters that define the decision to empty the water contained in the washing tank and / or in the water tank to the external wastewater network are not at all limiting and may be different.

The control unit of the washing machine 1 is adapted to manage water flow transfers in the hydraulic water distribution circuit of the washing machine 1.

Thanks to the present invention, said at least one passage opening of the first water circulation conduit disposed inside the water reservoir flows into the interior of the water reservoir so as to prevent the return of the wash water and / or of rinsing stored in the water tank towards the washing tank of the washing machine, and conversely, allowing an introduction of air into the first water circulation duct disposed inside the water tank through said at least a passage opening.

In this way, the upper point formed by the first water circulation duct disposed inside the water tank and disposed between the water tank and the washing tank of the washing machine makes it possible to stop the transfer by siphoning of the water from washing and / or rinsing from the water tank to the washing tank of the washing machine, and conversely, after stopping a water circulation pump that circulates the washing and / or rinsing water between the water tank and the wash tank.

Obviously, numerous modifications can be made to the embodiments described above without departing from the scope of the invention.

Thus, the wash and / or rinse water tank associated with the washing machine could be used in other household appliances, for example a dishwashing machine or a machine for washing and drying clothes.

Claims (8)

1. Washing machine (1) comprising: -a frame (2); 5 -in which said frame (2) encloses a washing tank (3); -a washing and / or rinse water tank (6); -a hydraulic water distribution circuit; - wherein said hydraulic water distribution circuit connects said washing tank (3) of said washing machine (1) to said water tank (6), said hydraulic water distribution circuit comprising at least one circulation pump of water (11, 12) that circulates wash and / or rinse water from said water tank (6) to said wash tank (3) of said washing machine (1), and vice versa; - wherein said water tank (6) comprises an aeration device (26) so that it is allowed to fill with, and empty of, water from said water tank (6); 15 - wherein said hydraulic water distribution circuit comprises an upper point (25) formed between said water tank (6) and said washing tank (6) of said washing machine (1); - where said upper point (25) of said hydraulic water distribution circuit is located at the same height or above the maximum permissible water level (N1) inside said water tank (6); characterized because

-

said hydraulic water distribution circuit comprises a first water circulation conduit

(10) disposed inside said water tank (6); Y - said upper point (25) is formed by said first water circulation duct (10) disposed inside said water tank (6); 25 - wherein said upper point (25) of said first water circulation duct (10) comprises at least one passage opening (42) that flows into the storage area for washing and / or rinsing water of said reservoir of water (6) so as to prevent a transfer of washing and / or rinsing water between said water tank (6) and said washing tank (3) of said washing machine (1), and vice versa; and - wherein said aeration device (26) of said water reservoir (6) is in fluidic communication with said at least one passage opening (42) of said first water circulation conduit (10) disposed inside said water tank (6). 2. Washing machine (1) according to claim 1, characterized in that said upper point (25) of Said first water circulation conduit (10) is disposed at the level of the junction between first and second parts (10a, 10b) of said first water circulation conduit (10), wherein said first and second parts (10a , 10b) of said first water circulation conduit (10) respectively extend inside said water tank (6) and from the bottom towards the top of said water tank (6). 3. Washing machine (1) according to claim 1 or 2, characterized in that said aeration device (26) of said water tank (6) comprises an air flow tube (36) connected to an area (37) in fluidic communication with said washing tank (3) of said washing machine (1). Washing machine (1) according to any one of claims 1 to 3, characterized in that said aeration device (26) of said water tank (6) comprises at least one air passage opening (44) arranged in a wall (6b) of said water tank (6). 5. Washing machine (1) according to claim 4, characterized in that: - at least one element of deflection of a water flow (19a) is arranged inside said water tank (6), - where said at at least one diverting element of a water flow (19a) is disposed between said at least one passage opening (42) of said first water circulation conduit (10) disposed inside said water tank (6) and said at least one air passage opening 55 (44) of said aeration device (26) of said water reservoir (6), - such that a flow of water flowing from said at least one passage opening (42) of said first circulation passage is diverted of water (10) in the direction of said at least one air passage opening (44) of said aeration device (26) of said water tank (6).

6.

Washing machine (1) according to any one of claims 1 to 5, characterized in that said first water circulation duct (10) disposed inside the water tank (6) is connected with at least one valve (14) mounted in said water tank (6).

7.

Washing machine (1) according to any one of claims 1 to 6, characterized in that said

The hydraulic water distribution circuit comprises an overflow conduit (9) disposed inside said water tank (6). 8. Washing machine (1) according to claims 6 and 7, characterized in that said overflow conduit (9) is connected to said at least one valve (14) mounted in said water tank (6). A washing machine (1) according to claim 7 or 8, characterized in that: - at least one element of deflection of a water flow (19a) is disposed inside said water tank (6), - in wherein said at least one deviation element of a water flow (19a) is disposed between said at least one passage opening (42) of said first water circulation conduit (10) 10 disposed inside said water reservoir (6) and a water inlet opening (17) of said overflow conduit (9), such that a flow of water flowing from said at least one opening is diverted of passage (42) of said first water circulation conduit (10) in the direction of said water inlet opening (17) of said overflow conduit (9). fifteen 10. Washing machine (1) according to claims 5 and 9, characterized in that said at least one element of deflection of a water flow (19a) disposed between said at least one passage opening (42) of said first water circulation conduit (10) disposed inside said water tank (6) and said at least one air passage opening (44) of said aeration device (26) of 20 said water tank (6) is the same as said at least one deviation element of a water flow (19a) disposed between said at least one passage opening (42) of said first water circulation conduit (10) disposed inside said water tank (6) and a water inlet opening (17) of said overflow conduit (9).  DRAWINGS