ES2554284T3 - Dishwasher machine comprising a tank - Google Patents

Abstract

Dishwashing machine (1) comprising a washing tank (2) and a tank (5), said washing tank (2) comprising at least one bottom wall (2a), a bottom wall (2c), two side walls ( 2b) and an upper part of the tank (2d), said tank (5) being arranged outside said washing tank (2) and along one of the walls of said washing tank (2), characterized in that said tank (5) comprises at least two fixing pins (44) that are inserted between one of said side walls (2b) or bottom walls (2c) of said washing tank (2) and said upper part of tank (2d) of said washing tank (2).

Description

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Dishwasher machine comprising a deposit.

The present invention relates to a dishwasher that comprises a tank.

In general, the present invention relates to the assembly of a tank in a dishwashing machine, and in particular a reservoir of washing and / or rinsing water that allows the use of this washing and / or rinsing water in the during a subsequent phase of an operating cycle or during a subsequent operating cycle.

More particularly, the present invention finds application in domestic dishwashing machines.

Dishwashing machines comprising a washing tank and a tank are known. The washing tank comprises at least one bottom wall, a rear wall, two side walls and a top part of the tank. The tank is arranged outside the washing tank and along one of the walls of the washing tank.

However, these dishwashing machines have the disadvantage of fixing and maintaining a tank by means of fixing screws or elastic snap-in elements.

In the event that the tank is fixed with fixing screws, each of the fixing screws passes through an opening arranged in the tank and is screwed into a screw hole arranged in a wall of the washing tank.

Therefore, such a fixing of a tank with a washing tank by means of fixing screws, where the tank is arranged outside the washing tank and along one of the walls of the washing tank , it is expensive due to the cost of the fixing screws and it takes a long assembly time during the manufacture of the dishwasher machines.

In addition, the assembly of a tank with a washing tank by means of fixing screws requires the use of tools, in particular screwdrivers.

In the event that the tank is fixed with elastic snap-in elements, each of the elastic snap-in elements must cooperate with the tank and the washing tank or with elements of the structure of the dishwasher.

Therefore, such a fixing of a tank with a washing tank by means of elastic snap-in elements, where the tank is arranged outside the washing tank and along one of the walls of the tank. wash tank, requires a certain skill to avoid breaking the elements of elastic pressure hitch and entails a prolonged assembly time during the manufacture of dishwashing machines.

On the other hand, the assembly of a tank with a washing tank or elements of the structure of the dishwasher by means of fixing screws or with elastic snap-in elements presents problems of alignment between the fixing elements of the tank and the fixing elements of the washing tank or elements of the structure of the dishwasher. These problems of alignment of the different fixing elements are due to the dimensional and geometric variations of the tank, the washing tank and the elements of the structure of the dishwasher.

Document DE 10 2007 041 305 A1 is also known which describes a dishwashing machine comprising a washing tank and a tank. The washing tank comprises a lower wall, a rear wall, two side walls and an upper wall. The tank is arranged outside the washing tank and along one of the side walls of the washing tank.

The present invention aims to solve the aforementioned drawbacks and propose a dishwashing machine that allows maintaining and fixing a tank outside a washing tank and along one of the walls of the washing tank at the lowest cost, reducing the at the same time the assembly time and simplifying the assembly operations to be carried out during the manufacture of the dishwasher machines.

In this regard, the present invention has as its object a dishwasher machine comprising a washing tank and a tank, said washing tank comprising at least one bottom wall, a bottom wall, two side walls and a top part of the tank, being said deposit arranged outside said washing tank and along one of the walls of said washing tank.

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According to the invention, said tank comprises at least two fixing pins that are inserted between one of said side or bottom walls of said washing tank and said upper part of the tank of said washing tank.

Thus, the maintenance and fixing of the tank with the washing tank by inserting at least two fixing pins that are inserted between one of the side or bottom walls of the washing tank and the upper part of the tank of the tank Washing is simple, inexpensive and fast.

In this way, the assembly of the tank with the washing tank can be carried out without fixing screws that pass through an opening arranged in the tank and are screwed into a screw hole arranged in a wall of the washing tank.

In addition, the assembly of the tank with the washing tank is carried out without using tools.

According to a preferred feature of the invention, said tank comprises at least one foot, wherein said at least one foot cooperates with a support element of a frame that supports said washing tank.

Thus, the tank is supported by the rack of the dishwasher after the support of said at least one foot of the tank on a support element of the frame that also supports the washing tank.

In this way, the assembly of the tank in the washing tank is facilitated because the tank is supported by the rack of the dishwasher so as to avoid having to lift the tank during the assembly process of the tank with the wash tank

In addition, after insertion of said at least two fixing pins between one of the side or bottom walls of the washing tank and the upper part of the tank of the washing tank and after the placement of said at least one foot of the tank Against a support element of a frame that supports the washing tank, the tank is kept in its position outside the washing tank and along one of the walls of the washing tank.

In this way, the fixing of the tank with the washing tank can be carried out later, and in particular in the course of a subsequent stage of an assembly process of a dishwashing machine and which can be carried out in another work station of a washing line. manufacturing.

Other particularities and advantages are further derived from the following description.

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

- Figure 1 is a first partial schematic perspective view illustrating a dishwashing machine comprising a washing and / or rinsing water tank according to an embodiment of the invention;

- Figure 2 is a second partial schematic perspective view illustrating a dishwashing machine comprising a washing and / or rinsing water tank according to an embodiment of the invention, wherein the washing tank has been partially omitted;

- Figure 3 is a schematic side view illustrating a dishwashing machine comprising a wash and / or rinse water tank according to an embodiment of the invention;

- Figure 4 is a sectional view of Figure 3 according to the cutting plane A-A;

- Figure 5 is an exploded view illustrating a wash and / or rinse water tank comprising two shell-shaped walls according to an embodiment of the invention;

- Figure 6 is a front view illustrating one of the two housing-shaped walls according to a first embodiment;

- Figure 7 is a front view illustrating one of the two housing-shaped walls according to a second embodiment;

- Figure 8 is a schematic view illustrating a part of a hydraulic circuit for distributing water of a dishwashing machine comprising a wash and / or rinse water tank according to an embodiment of the invention;

- Figure 9 is a schematic view illustrating the assembly of a tank in a washing tank of a dishwasher according to an embodiment of the invention;

- Figure 10 is a schematic view illustrating a dishwashing machine comprising a tank assembled in a washing tank according to an embodiment of the invention;

- figure 11 is a view of detail B of figure 10;

- Figure 12 is a partial schematic view illustrating the fixing of a tank to a washing tank of a dishwasher according to an embodiment of the invention;

- Figure 13 is a schematic view illustrating a part of a hydraulic water distribution circuit of a dishwashing machine comprising a washing and / or rinsing water tank according to an embodiment of the invention; Y

- Figure 14 is another schematic view illustrating a part of a hydraulic water distribution circuit of

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a dishwashing machine comprising a reservoir of washing and / or rinsing water according to an embodiment of the invention.

First, a dishwashing machine according to one embodiment of the invention is described, referring to figures 1 to 14.

This dishwasher machine can be a dishwasher machine for domestic use.

Figure 1 shows an embodiment describing a dishwasher with front loading of the dishes.

A dishwashing machine 1 comprises a washing tank 2 whose front face is closed by a door (not shown).

In one embodiment, the washing tank 2 can comprise a frame formed by at least side walls. The frame of the machine for washing and drying the dishes 1 can also comprise an upper wall for the machines for washing and for drying the autonomous dishes.

The door of the washing tank 2 makes it possible to seal an opening made in the washing tank 2. This door of the washing tank 2 can therefore be mobile between a closed position in which the opening is sealed, in a sealed manner, and a open position.

In an exemplary embodiment, and not at all limiting, the door of the washing tank 2 is pivotally mounted around a rotational axis integral with the frame of the dishwasher 1.

The wash tank 2 comprises at least one water spray means 24 of a wash and / or rinse bath on the dishes, as shown in Figure 13.

In this case, and in an absolutely non-limiting manner, the wash tank 2 comprises an upper water spray windlass, a lower spray windlass and a spray nozzle arranged on the roof of the wash tank 2.

The water of a wash and / or rinse bath is defined as the water that allows the cleaning of the dishes and that circulates through a hydraulic circuit of water distribution of a dishwasher 1. The origin of the water of a wash bath and / or rinse is the water that arrives from the power supply network of the dishwasher 1.

The washing tank 2 comprises a lower wall 2a, side walls 2b, a bottom wall 2c and an upper wall 2d.

The frame of the dishwashing machine 1 is suitable to accommodate the washing tank 2. Said washing tank 2 is suitable for containing in particular the water of the washing and / or rinsing baths of the different phases of a cleaning cycle.

At least one basket for dishes (not shown) is mounted inside the washing tank 2.

In particular, a basket for dishes can be placed in the upper part of the washing tank 2, designating the upper basket, and a basket for the dishes can be placed in the lower part of the washing tank 2, being designated as the lower basket.

The baskets for the dishes can be pushed and removed causing them to slide through the inside of the washing tank 2 of the dishwasher 1, either after the end of a cleaning cycle for the discharge of the dishes, or before the start of a cleaning cycle for loading the dishes.

This dishwasher 1 is equipped with a pump for the circulation of water from a wash and / or rinse bath 3 in the washing tank 2.

In an exemplary embodiment, and not at all limited, the dishwasher 1 operates in such a way that the wash and / or rinse bath contained in a collecting tank 4 formed in the bottom wall 2a of the wash tank is minimized 2.

The water circulation pump 3 draws the water from the wash and / or rinse bath that is in the collecting tank 4 to circulate the water from the wash and / or rinse bath under pressure to the spray sprinklers. water 24. Next, the wash and / or rinse bath returns to the collection tank 4.

This water circulation pump 3 is driven by an electric motor.

Advantageously, the collecting tank 4 formed in the lower wall 2a of the washing tank 2 houses a device

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filter 26 so that the water from a wash and / or rinse bath sucked by the water circulation pump 3 is filtered and then circulated to the water spray means 24, as shown in the figure 14.

The dishwasher 1 can also comprise a drain pump 27 of the waste water of the wash and / or rinse bath.

The drain pump 27 extracts the residual water from the wash and / or rinse bath that is in the wash tank 2, in particular in the collection tank 4, to evacuate the waste water from the wash and / or rinse bath towards a sewage network (not shown) connected to the dishwasher 1.

Said drain pump 27 is driven by an electric motor.

Advantageously, the filtration device 26 housed in the collection tank 4 allows the water to be filtered from a wash and / or rinse bath sucked by the water circulation pump 3, in particular during the water supply of the spray means of water 24. Also, the drain pump 27 allows the dirt trapped in the filtration device 26 to be removed during the circulation of water from the collection tank 4 to an external wastewater network.

The water of at least one wash and / or rinse bath contained in the wash tank 2, in particular in the collection tank 4, can be heated by heating means 20, such as for example an electric heating resistor.

The dishwashing machine 1 comprises control means (not shown), and in particular at least one microcontroller, which allows to develop predetermined operating cycles.

Obviously, this dishwasher includes all the necessary elements (not shown) for the operation and execution of the washing, rinsing and drying cycles of the dishes.

The washing machine 1 comprises a water storage tank 5 from at least one washing and / or rinsing and / or drying phase for reuse during a subsequent phase of an operating cycle or during a cycle of following operation started by said machine 1.

Preferably, the water tank 5 is internal to the frame of the washing machine 1.

Advantageously, the water tank 5 comprises at least a first and a second water passage opening 6, 7.

The washing machine 1 comprises a hydraulic water distribution circuit, where the hydraulic water distribution circuit connects the washing tank 2 of the washing machine with the water tank 5.

The washing machine 1 can comprise a feed with water from the network (not shown) so that the washing tank 2 is filled during the different phases of a water wash cycle that has not been used during a previous phase of the cycle of operation in progress or during a previous operation cycle.

The hydraulic water distribution circuit of the washing machine 1 can be fed with water from the network through a water inlet line of 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 of the washing machine 1 connects the washing tank 2 with the water tank 5.

The hydraulic water distribution circuit comprises a water recovery pump 8 so that at least one internal water storage compartment 11, 16 of the water tank 5 is filled with washing and / or rinsing water from a collecting tank 4 of the wash tank 2.

Preferably, the water tank 5 is connected to the collection tank 4 formed in the lower wall 2a of the washing tank 2 through the water recovery pump 8.

Thus, the water recovery pump 8 is fluidly connected, on the one hand, with the collection tank 4 and, on the other hand, with the water tank 5.

In this way, the washing machine 1 provided with a water tank 5 allows to recover water from at least one wash and / or rinse phase, store at least a part of this water, and then reuse at least

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a part of this water in the course of a subsequent phase of an operating cycle or during a subsequent operating cycle started by said washing machine 1.

The water tank 5 of the washing machine 1 allows to store all or part of the water of at least one washing and / or rinsing phase so that the water consumption of a set operating cycle is reduced to the same extent running by said washing machine 1.

Advantageously, a valve 9 is arranged between the water recovery pump 8 and the water tank 5.

Thus, during the filling with wash and / or rinse water of the water tank 5 from the wash tank 2, the water recovery pump 8 is put into operation and the valve 9 is activated in the open position so that puts the water in circulation from the collection tank 4 to the water tank 5.

At the end of the filling with wash and / or rinse water of the water tank 5 from the wash tank 2, the valve 9 is activated in a closed position so that the water is retained inside the water tank 5 and prevents the return of water to the collection tank 4.

Water filling of the water reservoir 5 is guaranteed by starting the water recovery pump 8 and activating the valve 9 in the open position, filling it through a first water passage opening 6 formed in the part lower water tank 5.

Water filling of the water tank 5 can be done by time. This mode of filling the timed water of the water tank 5 is controlled by a period of time for the operation of the water recovery pump 8 and the opening of the valve 9 through the control means of the washing machine 1, such as for example a microcontroller.

The start-up period of the water recovery pump 8 depends on the water flow of said pump 8 and the capacity of the water tank 5.

At the end of filling with water of the water tank 5, by means of the control means of the washing machine 1, such as for example a microcontroller, the valve 9 arranged in the hydraulic water distribution circuit between the recovery pump of water 8 and the water tank 5 closes and then the water recovery pump 8 stops.

Advantageously, the water tank 5 comprises at least a first internal channeling 10 fluidically communicated, on the one hand, with at least one internal compartment 11 of the water tank 5 and, on the other hand, with the collecting tank 4 so that it is implemented an overflow and water discharge device in excess of the water tank 5 to the collection tank 4, as illustrated in Figures 5 to 8 and 13.

Hereinafter, in the description that follows said at least a first internal channeling 10 is also referred to as an overflow conduit.

The pouring of the excess water from the water tank 5 to the collecting tank 4 is carried out through a first internal pipe 10 of the water tank 5 which extends along the height thereof, said first internal pipe 10 in particular comprising an opening of water passage 12, arranged in the upper part of said water tank 5, and a second water passage opening 7 formed in the lower part of the water tank 5.

Also, during the emptying of the washing and / or rinsing water from the water tank 5 to the washing tank 2, the water recovery pump 8 is stopped and the valve 9 is activated in the open position so that by gravity the water is circulated from the water tank 5 to the collecting tank 4.

Thus, when the water recovery pump 8 is stopped, it is capable of allowing a flow of water to pass through it when the valve 9 is in an open position so that the circulation of water by gravity is not blocked through the Water distribution hydraulic circuit of the washing machine 1 from the water tank 5 to the collecting tank 4.

The valve 9 located between the water recovery pump 8 and the water tank 5 can be controlled electrically or also by the pressure in the hydraulic water distribution circuit.

Water draining from the water tank 5 is carried out by gravity through the water recovery pump 8 that is stopped, the valve 9 that is activated in the open position and the first water passage opening 6 formed at the bottom of the water tank 5.

The emptying of water from the water tank 5 to the washing tank 2 is started by means of

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control of the washing machine 1, such as for example a microcontroller, which control the opening of the valve 9 and the stop maintenance of the water recovery pump 8 so that a gravity water flow is allowed from the tank of water 5 to the interior of the washing tank 2, and in particular to the collecting tank 4, through a plurality of water circulation ducts 13a, 13b, 13c, of the water recovery pump 8 and of the valve 9.

Thus, the emptying of water from the water tank 5 to the collecting tank 4 is by gravity and does not require any activation of the water by means of a pump.

The water drain from the water tank 5 is started by activating the open position of the valve 9 for a predetermined time so that the water from the water tank 5 flows by gravity to the collecting tank 4 while the water recovery pump 8 It stays stopped.

The predetermined opening time of the valve 9, during the emptying of water from the water tank 5, is controlled by means of controlling the washing machine 1, such as for example by a microcontroller.

The emptying of water from the water tank 5 is controlled by means of preprogrammed control means of the washing machine 1 during the recovery of water for a subsequent phase of an operating cycle and / or for a subsequent operating cycle of said machine 1.

Advantageously, the wash and / or rinse water is fed to the water tank 5 and then stored inside the water tank 5 at the end of a previous operating cycle started by the washing machine 1, in particular after a rinsing stage. Then, the wash and / or rinse water stored in the water tank 5 is emptied into the collection tank 4 at the beginning of a subsequent operating cycle started by the washing machine 1, in particular during a washing stage or Prewash

In a preferred embodiment, a quantity of complementary water from an external water network is fed to the collection tank 4 after the water has been emptied from the water tank 5 to the collection tank 4. This filling with complementary water is carried out by middle of the valve (not shown) that connects the washing machine 1 to an external water network.

Water draining from the water tank 5 can also be controlled by a user or by means of control of the washing machine 1 so that the water from the water tank 5 is evacuated to a sewage network, in particular before or after a prolonged period of non-use of said machine 1.

During the evacuation of water from the water tank 5 to a sewage network:

- the water from the water tank 5 flows by gravity to the collection tank 4 in a first phase of emptying the

water from the water tank 5 carried out by opening the valve 9 for a predetermined time, so that the water from said water tank 5 flows by gravity to the collecting tank 4 while maintaining the water recovery pump 8 stopped ; and then

- in a second phase of water evacuation, water flows from the collecting tank 4 to a sewage network by starting the drain pump 27.

The first water passage opening 6 formed in the lower part of the water tank 5 serves, on the one hand,

to fill said water tank 5 with water and, on the other hand, to empty said water tank 5.

Preferably, the first water passage opening 6 of the water tank 5 is fluidly connected to the valve 9 and is located above the maximum water level in the wash tank 2 when the water in the wash and / or rinse bath inside the wash tank 2 this static.

Advantageously, the water recovery pump 8 is a centrifugal pump.

The peculiarity of centrifugal pumps is that they allow the passage of a flow of water through the inside of your body when they are not in operation.

In this case, the water recovery pump 8 is located below the water tank 5.

Thus, the water recovery pump 8 allows the water tank 5 to be filled with washing and / or rinse water from the washing tank 2.

The placement of the water recovery pump 8, which is a centrifugal pump, is also related to its design, since this water recovery pump 8 can only work when it is primed with water.

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On the other hand, the placement of the water recovery pump 8 below the water tank 5 is also related to the space available inside the frame of the washing machine 1 so that the dimensions of the water tank are optimized. washing 2 of the washing machine 1 and the water tank 5.

In practice, the collection tank 4 is connected to the water recovery pump 8 by means of a first water circulation duct 13a. The water recovery pump 8 is connected to the valve 9 through a second water circulation duct 13b. Also, the valve 9 is connected to the water reservoir 5 by a third water circulation duct 13c.

In this case, the collecting tank 4 comprises a first water passage opening 14 connected to the first water circulation duct 13a so that the water is circulated from the washing tank 2 to the water tank 5, and the inverse The collecting tank 4 also comprises a second water inlet opening 15 connected with a fourth water circulation duct 13d so that the excess water introduced into the water tank 5 is poured into the collecting tank 4. The fourth water conduit Water circulation 13d is also connected to the second water passage opening 7 formed in the lower part of the water tank 5.

The collection tank 4 formed in the lower part of the washing tank 2 also comprises a water passage opening 30 towards the water circulation pump 3 and a water passage opening towards the drain pump 27.

The inlet of the water circulation pump 3 is connected through a fifth water circulation conduit with the collecting tank 4 and, the outlet through at least one water circulation conduit with one or several spray means of water 24 arranged in the wash tank 2.

The inlet of the drain pump 27 is connected through a sixth water circulation conduit with the collecting tank 4 and, the outlet through a water circulation conduit with a sewage network.

The hydraulic water distribution circuit of the washing machine 1 comprises a first branch. The first branch comprises a water circulation pump 3 so that at least one water spray means 24 arranged in the washing tank 2 is fed with water.

The hydraulic water distribution circuit of the washing machine 1 also comprises a second branch. The second branch comprises the water recovery pump 8 so that at least one water storage area of the water tank 5 is fed with water during the recovery of water from at least one wash and / or rinse phase. The second branch also comprises a valve 9 so that a flow of water from the water tank 5 to the washing tank 2 is prevented through a water passage opening 6 formed in the water tank 5 after feeding with water from the water tank 5, so that a water flow is allowed from the water tank 5 to the washing tank 2 through the water passage opening 6 formed in the water tank 5 during the emptying of the tank of water 5 towards the washing tank 2.

The valve 9 of the second branch of the hydraulic water distribution circuit is activated in the open position during the recovery of water from at least one wash and / or rinse phase so that a flow of water from the tank is allowed wash 2 to the water tank 5.

Also, the second branch of the hydraulic water distribution circuit connects the washing tank 2 with a lower wall of the water tank 5.

Thus, a flow of wash and / or rinse water that enters through the bottom of the water tank 5 during the water supply of the water tank 5 from the wash tank 2 makes it possible to limit the water flow noises during the filling with water from the water tank 5.

Furthermore, the hydraulic water distribution circuit of the washing machine 1 is simplified by separating the first and second branches of this hydraulic water distribution circuit.

The valve 9 arranged in the second branch of the hydraulic circuit makes it possible to prevent a flow of water from the water tank 5 to the washing tank 2 through a water passage opening 6 formed in the lower part of the water tank 5 after the water supply of the water tank 5, circulating a water flow from the water tank 5 to the washing tank 2 through the water passage opening 6 formed in the lower part of the water tank 5 during emptying the water tank 5 into the washing tank 2, and circulating a flow of water from the washing tank 2 to the water tank 5 through the water passage opening 6 formed in the lower part of the water tank 5 during the recovery of water from at least one wash and / or rinse phase.

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On the other hand, the second branch of the hydraulic circuit allows the washing and / or rinsing water to be circulated from the washing tank 2 to the water tank 5 during filling with water of the water tank 5 by means of the pump of water recovery 8, activating the valve 9 in the open position, and circulating the washing and / or rinsing water from the water tank 5 to the washing tank 2 during the emptying of water from the water tank 5 by gravity activating the valve 9 in the open position and keeping the water recovery pump 8 stopped.

In this way, the second branch of the hydraulic circuit extends from the washing tank 2 to the lower wall of the water tank 5 so that the length of the water circulation ducts 13a, 13b, 13c that connect the tank is minimized of washing 2, the water recovery pump 8, the valve 9 and the water tank 5, so that the cost of obtaining the washing machine 1 is reduced.

The second branch of the water distribution hydraulic circuit of the washing machine 1 allows a flow of water in one direction from the collecting tank 4 of the washing tank 2 to the water tank 5 through the valve 9 and the water recovery pump 8, and in another direction from the water tank 5 to the collecting tank 4 of the washing tank 2 through the valve 9 and the water recovery pump 8.

In this way, in the event that an area of the second branch of the hydraulic circuit is blocked due to a solid object, for example a waste carried by the water flow, during a water flow according to a first direction, a water flow according to a second direction through the second branch of the hydraulic circuit, it can allow the solid object to be dragged into the area of the second branch of the hydraulic circuit.

Advantageously, the water tank 5 comprises an overflow conduit 10 disposed inside the water tank 5 fluidly communicated, on the one hand, with said at least one water storage area of the water tank 5 and, on the other hand, with the collection tank 4 of the washing tank 2.

Thus, a washing machine 1 of this type that has a washing and / or rinsing water tank 5 where the hydraulic water distribution circuit of the washing machine 1 comprises an overflow conduit 10 disposed inside the water tank 5 and which is fluidly communicated with the collection tank 4 of the washing tank 2 allows to dispense with a water level sensor mounted in the water tank 5 that detects the upper level of water inside the water tank 5.

In this way, filling with washing and / or rinsing water of the water tank 5 from the washing tank 2 of the washing machine 1 is carried out by activating the water recovery pump 8 without controlling the water level in the inside the water tank 5.

If the amount of washing and / or rinsing water present in the washing tank 2 of the washing machine 1 is greater than the capacity of the water tank 5, the excess water is returned to the collecting tank 4 of the washing tank 2 by means of the overflow conduit 10 disposed inside the water tank 5.

In addition, a washing machine 1 of this type that has a wash and / or rinse water tank 5 is less expensive and easier to assemble while avoiding spraying the pieces of dishes contained inside the tank of washing 2 by means of the water introduced in excess in the water tank 5 and returned from the water tank 5 to the washing tank 2.

Preferably, the second branch of the hydraulic water distribution circuit comprises a plurality of water circulation ducts 13a, 13b, 13c that connect the collecting tank 4 of the washing tank 2 with the water tank 5, and the overflow conduit 10 of the water tank 5 is connected to the collecting tank 4 of the washing tank 2 through another water circulation duct 13d so that the excess water introduced into the water tank 5 is poured into the collecting tank 4 of the wash tank 2, said other water circulation conduit 13d connecting the overflow conduit 10 of the water tank 5 with the collecting tank 4 of the washing tank 2 separated from the plurality of water circulation conduits 13a , 13b, 13c of the second branch of the water distribution hydraulic circuit.

Thus, during the water supply of the water tank 5 from the wash tank 2, a flow of wash and / or rinse water enters through the bottom of the water tank 5 to the level of a water passage opening 12 of the overflow conduit 10. Then, the excess water introduced into the water reservoir 5 is returned from the water reservoir 5 to the washing vessel 2 by means of the water circulation conduit 13d connecting the overflow conduit 10 of the water tank 5 with the collecting tank 4 of the washing tank 2 and which is separated from the plurality of water circulation ducts 13a, 13b, 13c of the second branch of the hydraulic water distribution circuit.

In this case, the hydraulic water distribution circuit comprises a third branch. Third

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branching comprises a drain pump 27 so that the water is evacuated from the washing tank 2 and / or from the water tank 5 to a sewage network.

The hydraulic water distribution circuit of the washing machine 1 makes use of the first branch comprising the water circulation pump 3 to feed with water at least one water spray means 24 arranged in the washing tank 2, the second branch comprising the water recovery pump 8 and the valve 9 for feeding the water tank 5 with water during the recovery of water from at least one washing and / or rinsing phase and for emptying the water tank water 5 to the collection tank 4 of the washing tank 2 during the reuse of the stored water or during the emptying of the stored water into an external wastewater network, and the third branch comprising the drain pump 27 to evacuate the retained water in the collection tank 4 and / or stored in the water tank 5 towards an external wastewater network.

The first, second and third branches of the hydraulic water distribution circuit are separated from each other.

The first, second and third branches of the hydraulic water distribution circuit are only connected by the collection tank 4 of the washing tank 2.

In this way, the water recovery device from at least one wash and / or rinse phase comprising the water tank 5, the water recovery pump 8 and the valve 9, can be deactivated or activated through the control means of the washing machine 1, preferably through a microcontroller, so that the recovery of wash and / or rinse water is deactivated or activated.

The hydraulic water distribution circuit of a washing machine 1 makes it possible to adapt the operating cycles of said washing machine 1 according to the use or not of the water tank 5 with said washing machine 1.

In addition, the hydraulic circuit of water distribution of a dishwashing machine according to the invention is suitable for installation in a dishwasher without a water tank without modifying the first and third ramifications of the hydraulic circuit of water distribution of the dishwasher.

The hydraulic water distribution circuit of a washing machine 1 of this type comprises a first branch configured to feed the water spray means 24 of the washing tank 2 so that the dishes arranged in dishes baskets are cleaned of the wash tank 2, and a second independent branch configured to feed and drain a water tank 5 so that the wash and / or rinse water is recovered from a phase of an operating cycle and reused this water recovered during a subsequent phase of an operating cycle or during a following operating cycle.

Thus, the hydraulic water distribution circuit of a washing machine 1 of this type may or may not be equipped with a water distribution means configured to feed water sprinkling means 24 of the washing tank 2, such as for example a water distributor with rotating disk.

In the case of a washing machine 1 with a hydraulic water distribution circuit comprising a water distribution means, the water distribution means feeds water sprinkling means 24, either alternatively or simultaneously.

In the case of a washing machine 1 with a hydraulic water distribution circuit devoid of a water distribution means, the water supply of the water spray means 24 can be carried out through a water circulation conduit that it comprises a water inlet connected, at the outlet, with the water circulation pump 3 and a plurality of water outlets connected respectively with a water spray means 24.

During the filling with wash and / or rinse water of the water tank 5, the water tank 5 is fed with water through the second branch of the water distribution hydraulic circuit comprising a plurality of water circulation ducts 13a, 13b, 13c that are fluidly communicated with the collecting tank 4, the water recovery pump 8, the valve 9 and the water tank 5 so that said water recovery pump 8 feeds with washing water and / or rinse only said water tank 5.

During the emptying of wash and / or rinse water from the water tank 5, the water tank 5 is emptied through the second branch of the water distribution hydraulic circuit in the reverse direction, where the water recovery pump 8 this stop, so that it allows a flow of water to pass from the opening of the valve 9 mounted on the second branch of the hydraulic water distribution circuit.

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The aeration device of the water tank 5 comprises a first air passage opening 22 disposed above a water passage opening 12 of the overflow conduit 10 disposed inside the water tank 5.

Also, the water tank 5 comprises a second air passage opening 19 connected to an aeration device of the washing tank 2, wherein the first and second air passage openings 22, 19 are fluidly communicated.

Thus, the water tank 5 comprises an overflow conduit 10 that connects at least one water storage area of the water tank 5 with the collecting tank 4 of the washing tank 2 and an aeration device connecting said at least one Water storage area with the washing tank 2, where the overflow conduit 10 and the water tank aeration device 5 are separated and independent.

In this way, the separation of the overflow conduit 10 and the aeration device of the water tank 5 from the washing machine 1 makes it possible to guarantee the correct flow of an excessly introduced water flow from the water tank 5 to the collecting tank 4 of the washing tank 2 as well as the correct air flow between the water tank 5 and an aeration device of the washing tank 2 during filling with water of the water tank 5 from the collecting tank 4 of the water tank washing 2 and during the emptying of water from the water tank 5 to the collecting tank 4 of the washing tank 2.

In addition, the overflow conduit 10 of the water tank 5 makes it possible to evacuate by gravity a surplus of water introduced into the water tank 5 towards the collecting tank 4 of the washing tank 2 after filling with water from the water tank 5 beyond of the maximum permissible water level in the water tank 5.

In practice, at least one air passage opening 19 of the water tank aeration device 5 is connected to an air passage opening 31 of the washing tank 2.

In this case, the first and second air passage openings 22, 19 are fluidly connected through an air circulation duct 21 disposed inside the water tank 5.

Thus, the air flow between the first and second air passage openings 22, 19 of the water reservoir aeration device 5 is channeled through the air circulation duct 21 disposed inside the water reservoir 5.

Advantageously, the air circulation duct 21 is arranged parallel to the overflow duct 10.

Thus, the placement of the air circulation duct 21 with respect to the overflow duct 10 makes it possible to minimize the space occupied inside the water reservoir 5 so that the size of said at least one water storage area of the reservoir is optimized of water 5 and the amount of water stored in the water tank 5 is maximized.

Preferably, the air circulation duct 21 and the overflow duct 10 are separated by a common partition 32 arranged inside the water reservoir 5.

Thus, the air circulation duct 21 is adjacent to the overflow duct 10 so that the number of partitions inside the water tank 5 is reduced.

In this way, the cost of obtaining the water tank 5 is minimized and its realization is facilitated.

In one embodiment, the first and second air passage openings 22, 19 formed in the water tank 5 are fluidly communicated with at least a third air passage opening 33 formed in the water tank 5 and which flows into the outside of the water tank 5 and the wash tank 2.

Thus, the water tank 5 comprises an aeration device that allows the washing tank 2, the water tank 5 and the outside of the washing machine 1 to be fluidly connected so that an air flow is allowed through the first, second and third air passage openings 22, 19, 33 during the different stages of an operating cycle set in motion by the washing machine 1.

In this case, and in an absolutely non-limiting manner, the water tank 5 comprises two third air openings 33. The arrangement of the two third air openings 33 in a wall of the water tank 5 makes it possible to increase the air passage section from the water tank 5 towards the outside thereof and from the tank of

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Advantageously, said at least one third air opening 33 is circular so that it is easily sealed during the verification in production of the tightness of the water tank 5.

In practice, the second and said at least one third air passage opening 19, 33 are arranged in an internal compartment 34 of the water tank 5, the internal compartment 34 of the water tank 5 being separated from said at least one area water storage of the water tank 5.

Thus, the arrangement of the second and third air passage openings 19, 33 in an internal compartment 34 of the water tank 5 allows these second and third air passage openings 19, 33 to be separated from said at least one storage area of water from the water tank 5 so that a flow of water from said at least one water storage area of the water tank 5 is prevented through the second and third air passage openings 19, 33 respectively connected fluidly with the wash tank 2 and with the outside of the wash tank 2 of the washing machine 1.

In addition, the internal compartment 34 of the water reservoir 5 in which the second and third air passage openings 19, 33 are arranged allows to retain an excess amount of water introduced into the water reservoir 5 and which has overflowed by the first air passage opening 22, in particular by means of at least one lower wall of the internal compartment 34 disposed below the second and third air passage openings 19, 33.

On the other hand, said at least one lower wall of the internal compartment 34 disposed below the second and third air passage openings 19, 33 makes it possible to retain the condensations resulting from the circulation of moisture laden air between the washing tank 2 and the aeration device of the water tank 5, of which the internal compartment 34 of the water tank 5 forms an integral part.

Advantageously, the water tank 5 comprises a separating wall 35 disposed between the second and said at least one third air passage openings 19, 33 so that a flow of water is channeled through the first opening passage of air 22 towards the second air passage opening 19 after filling with water of the water tank 5 beyond the water passage opening 12 of the overflow conduit 10.

Thus, in the event that excess water is introduced into the water tank 5 beyond the water passage opening 12 of the overflow conduit 10 and an amount of water is introduced through the first passage opening of air 22, this amount of water can be returned to the washing tank 2 by means of the second air passage opening 19 formed in the water tank 5 and fluidly connected to the washing tank 2.

In this way, the amount of water introduced through the first air passage opening 22 is recovered in the washing tank 2 so that an overflow of water outside the washing tank 2 is avoided, in particular to an area comprising elements of the machine for washing 1 electrically powered.

In this case, the water reservoir 5 comprises a water retaining wall 36 arranged at least partly below the second air passage opening 19 so that a flow of water is channeled through the first opening of air passage 22 to the second air passage opening 19, and then to the wash tank 2 after filling with water from the water tank 5 beyond the water passage opening 12 of the overflow conduit 10.

Thus, in the event that excess water is introduced into the water tank 5 beyond the water passage opening 12 of the overflow conduit 10 and an amount of water is introduced through the first passage opening of air 22, this amount of water is channeled through a water retention wall 36 disposed at least in part below the second air passage opening 19 so that this amount of water is returned to the wash tank 2 by means of the second air passage opening 19 arranged in the water tank 5 and which is fluidly communicated with the washing tank 2.

In this case, an air outlet opening 23 of the air circulation duct 21 flows into the internal compartment 34 of the water tank 5, and in particular between the separation wall 35 separating the second and third air passage openings 19, 33 and the partition 32 separating the overflow duct 10 and the air circulation duct 21, so that a flow of water towards said at least one third air passage opening 33 fluidically connected to the outside of the washing tank 2 in the event that excess water is introduced into the water tank 5 beyond the water passage opening 12 of the overflow conduit 10 and that an amount of water is introduced through the first air passage opening 22.

In an embodiment such as that illustrated in Figure 8, the collection tank 4 of the washing tank 2

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it comprises a water inlet opening 15 fluidically connected with the overflow conduit 10 disposed inside the water reservoir 5.

Advantageously, the water from a wash and / or rinse bath that feeds the water storage tank 5 for reuse during a subsequent operating cycle started by the washing machine 1 is heated water, and preferably water from the last rinse bath, also called hot rinse bath water.

Advantageously, the hydraulic water distribution circuit comprises a water filtration device 26 located upstream of the water tank 5 so that the water tank 5 is fed with washed and / or filtered rinse water.

In this case, the water that feeds the water tank 5 is filtered by the filtration device 26 since the filtration device 26 is located upstream of the water recovery pump 8. The water recovery pump 8 takes water of the washing tank 2, in particular of the collecting tank 4, after the passage of said water through the filtration device 26 to feed the water tank 5 with water so as to prevent fouling of said water tank 5 and of the second branch of the water distribution hydraulic circuit.

In one embodiment, the filtration device 26 is at least partially housed inside the collecting tank 4.

Thus, the filtration device 26 housed in the collection tank 4 also allows water to be filtered from a wash and / or rinse bath sucked by the water recovery pump 8 and then put into circulation to the water tank 5.

The filtration device 26 may comprise a waste trap, an intermediate filter and a microfilter.

The hydraulic water distribution circuit of the washing machine 1 comprises the first water circulation duct 13a that connects a first water passage opening 14 of the collecting tank 4 of the washing tank 2 with a water inlet opening 28 of the water recovery pump 8.

Preferably, a water outlet opening 29 of the water recovery pump 8 is connected to a valve 9 by a second water circulation conduit 13b.

Next, it is described with reference to Figures 5 to 7, a storage tank for washing and / or rinsing water of a washing machine, and in particular of a dishwashing machine, according to the invention.

The water tank 5 comprises at least two internal compartments 11, 16.

A separation wall 17 is disposed between a first internal compartment 11 and a second internal compartment 16.

In this case, the first and second internal compartments 11, 16 of the water tank 5 are water storage areas arranged inside the water tank 5.

In one embodiment, the water tank 5 comprises a first wall in the form of a housing 5a and a second wall in the form of a housing 5b.

Said at least two internal compartments 11, 16 of the water tank 5 are formed by assembling the two shell-shaped walls 5a, 5b of the water tank 5.

The first and second internal ducts 10, 21, as well as the separation wall 17, are arranged inside the water tank 5 and are formed by assembling the two shell-shaped walls 5a, 5b of the water tank 5 .

The fixing of the two walls in the form of a housing 5a, 5b of the water tank 5 can be carried out by welding, in particular by a mirror welding process by means of hot plates, or by an ultrasonic welding procedure, or by a vibration welding procedure.

Obviously, the way of fixing the two walls in the form of a housing 5a, 5b of the water tank 5 is not at all limiting and can be different, in particular by screwing.

The first and second shell-shaped walls 5a, 5b comprise partitions that form, respectively,

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a first and a second part of the first and second internal pipes 10, 21 and the separation wall 17.

The partitions of the first and second parts of the first and second internal pipes 10, 21 and of the separation wall 17 arranged in the first and second shell walls 5a, 5b cooperate with each other so that the internal pipes are formed first and second 10, 21 and the separation wall 17.

In this case, the peripheral wall 18 of the water tank 5 comprises a double partition so that the robustness and the tightness of the water tank 5 formed by assembling two housing-shaped walls 5a, 5b is guaranteed.

Preferably, the water tank 5 is made of plastic material.

By way of example, not at all limiting, the water tank 5 is made of polypropylene, or of acrylonitrile-butadiene-styrene, commonly called ABS.

In this case, the plastic material used is intended to allow welding of the walls in the form of the first and second housing 5a, 5b of the water tank 5.

The plastic material of the water tank 5 is defined so that the cost of obtaining it is minimized, the dimensional stability of the water tank 5 is guaranteed, and the compatibility with the wash and / or rinse water introduced into the water tank 5.

The plastic material may also be loaded, in particular with an antibacterial agent.

In one embodiment, the water tank 5 is thermally and / or acoustically isolated by at least one layer of material (not shown).

The thermal and / or acoustic insulation that covers the water tank 5 can be constituted by one or several layers made from a single material, or several materials, such as, for example, bitumen and / or felt.

Obviously, the number of layers of thermal and / or acoustic insulation and the type of thermal and / or acoustic insulation are not at all limiting and may be different.

The thermal insulation of the water tank 5 allows to guarantee a better conservation of the calorific energy of the water of at least one washing and / or rinsing phase for a reuse during a subsequent operating cycle set in motion by the washing machine.

In one embodiment, the thermal and / or acoustic insulation can be arranged between the water tank 5 and the washing tank 2.

In one embodiment, the water tank 5 can be made of an antibacteriological or antifungicidal material so that the formation of a biofilm on the internal walls thereof is avoided.

The material used to make the water tank 5 can comprise, for example, silver ions so that the formation of a biofilm on the internal walls thereof is avoided.

Preferably, the part or walls that constitute the peripheral contour of said at least one internal compartment 11, 16 of the water tank 5 comprise partitions of partition that extend along the width of the water tank, wherein these partitions of partition that extend following the width of the water tank 5 they are inclined from the bottom up, or vice versa, following the height of the water tank 5.

Thus, after storage of the wash and / or rinse water in the water tank 5 where said water is stagnant, dirt is deposited on the part or walls that constitute the peripheral contour of said at least one internal compartment 11, 16 of the water tank 5. Also, during the emptying of water from the water tank 5 through the first water passage opening 6, the dirt deposited inside said at least one internal compartment 11, 16 of the water tank 5 is dragged by the flow of water along the inclined partition walls so that part of this dirt is prevented from being retained in the water tank 5.

In this way, when the dirt deposited inside the water tank 5 is evacuated, it is kept clean so that contamination of the wash and / or rinse water stored in the water tank 5 is avoided during the course of a following phase of an operating cycle or during a following operating cycle of the washing machine 1.

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In this case, the part or walls that constitute the peripheral contour of said at least one internal compartment 11, 16 of the water tank 5 comprise the peripheral wall 18 of the water tank 5 and the wall 25 disposed between the first internal compartment 11 and the first internal channeling 10.

Next, it is described with reference to Figures 9 to 12, the assembly of a tank in a washing tank of a dishwasher according to an embodiment of the invention.

The dishwashing machine 1 comprises a washing tank 2 and a tank 5.

The washing tank 2 comprises at least one lower wall 2a, a bottom wall 2c, two side walls 2b and an upper part of the tank 2d.

The tank 5 is arranged outside the washing tank 2 and along one of the walls of the washing tank 2.

According to the invention, the tank comprises at least two fixing pins 44 that are inserted between one of the side walls 2b or bottom 2c of the washing tank 2 and the upper part of tank 2d of the washing tank 2.

Thus, the maintenance and fixing of the tank 5 with the washing tank 2 by inserting at least two fixing pins 44 that are inserted between one of the side walls 2b or bottom 2c of the washing tank 2 and the part 2d tank top of wash tank 2 is simple, inexpensive and fast.

In this way, the assembly of the tank 5 with the washing tank 2 can be carried out without fixing screws that pass through an opening arranged in the tank 5 to be screwed into a screw hole formed in a wall of the washing tank 2.

In addition, the assembly of the tank 5 with the washing tank 2 is carried out without using tools.

In one embodiment, such as that illustrated in Figures 9 and 10, the upper part of tank 2d of the washing tank 2 comprises at least two protruding elements 38 extending along the height of the wall 2b, 2c of the washing tank 2 along which the tank 5 is arranged, wherein said at least two projecting elements 38 of the upper part of tank 2d respectively cooperate with one of said at least two fixing pins 44 of the tank 5 .

Thus, the placement of the tank 5 with respect to a wall 2b, 2c of the washing tank 2 is facilitated by the cooperation of said at least two fixing pins 44 of the tank 5 with said at least two protruding elements 38 of the part upper tank 2d of wash tank 2.

Advantageously, said at least two fixing pins 44 of the tank 5 are inserted between said at least two projecting elements 38 of the upper part of tank 2d and the wall 2b, 2c of the washing tank 2 along which it is arranged the deposit 5 according to an upward movement.

Thus, the placement of the tank 5 with respect to a wall 2b, 2c of the washing tank 2 is facilitated and a particular skill is not required to perform this assembly operation of the tank 5 in the washing tank 2.

Preferably, the tank 5 comprises at least one foot 45, wherein said at least one foot 45 cooperates with a support element 46 of a frame 47 that supports the washing tank 2.

Thus, the tank 5 is supported by the frame 47 of the dishwasher 1 after the support of said at least one foot 45 of the tank 5 on a support element 46 of the frame 47 which also supports the washing tank 2.

In this way, the assembly of the tank 5 in the washing tank 2 is facilitated by the maintenance of the tank 5 on the frame 47 of the dishwasher 1 so that it is avoided to have to lift the tank 5 during the assembly procedure of the tank 5 with washing tank 2.

Furthermore, after insertion of said at least two fixing pins 44 between one of the side walls 2b or bottom 2c of the washing tank 2 and the upper part of tank 2d of the washing tank 2 and after the placement of said at least one foot 45 of the tank 5 against a support element 46 of a frame 47 that supports the washing tank 2, the tank 5 is kept in its position outside the washing tank 2 and along one of the walls 2b, 2c of the wash tank 2.

In this way, the fixing of the tank 5 with the washing tank 2 can be carried out later, and in particular in the course of a subsequent stage of an assembly procedure of a dishwasher 1 which can be carried out in another work station of a manufacturing line.

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Advantageously, said at least one foot 45 of the tank 5 is supported on the support element 46 of the frame 47 according to a rotation movement of said at least two fixing pins 44 of the tank 5 with respect to said at least two projecting elements 38 of The upper part of Cuba 2d.

Thus, the placement of the tank 5 with respect to a wall 2b, 2c of the washing tank 2 is facilitated. Also, in particular, the rotational movement of said at least two fixing pins 44 of the tank 5 with respect to said at At least two protruding elements 38 of the upper part of tank 2d allow said at least one foot 45 of the tank 5 to be guided towards the support element 46 of the frame 47.

Advantageously, the tank 5 comprises a fixing tube 37 by screwing through an opening 31 arranged in the wall 2b, 2c of the washing tank 2 along which the tank 5 is arranged.

Thus, the fixing of the tank 5 to the wall 2b, 2c of the washing tank 2 can be done by screwing it from inside the washing tank 2.

In addition, it is guaranteed that the tank 5 remains in position by inserting said at least two fixing pins 44 between a wall 2b, 2c of the washing tank 2 and the upper part of the tank 2d of the washing tank 2 and by placing said at least one foot 45 of the tank 5 against a support element 46 of a frame 47 that supports the washing tank 2. Then, the fixing of the tank 5 is guaranteed by screwing the fixing part by screwed 39 to the fixing tube 37 of the tank 5 that rests on the wall 2b, 2c of the washing tank 2 along which the tank 5 is arranged.

Thus, the tank 5 is maintained and fixed with respect to the washing tank 2 without additional fixing means being required.

In addition, such a fixing device of the tank 5 along a wall 2b, 2c of the washing tank 2 by means of inserting said at least two fixing pins 44 between a wall 2b, 2c of the tank of washing 2 and the upper part of tank 2d of the washing tank 2, of the introduction of the fixing tube 37 by screwing through an opening 31 arranged in the wall 2b, 2c of the washing tank 2 along the which is disposed of the tank 5, and the placement of said at least one foot 45 of the tank 5 against a support element 46 of a frame 47 that supports the washing tank 2, allows the maintenance of the tank 5 without surges, and in particular isostatic type.

The insertion of said at least two fixing pins 44 between a wall 2b, 2c of the washing tank 2 and the upper part of the tank 2d of the washing tank 2 allows maintenance of the tank 5 by means of a flat support joint.

The introduction of the fixing tube 37 by screwing through an opening 31 arranged in the wall 2b, 2c of the washing tank 2 along which the tank 5 is arranged allows to establish a rotation point of the tank 5 with respect to the wall 2b, 2c of the wash tank 2.

Likewise, placing said at least one foot 45 of the tank 5 against a support element 46 of a frame 47 that supports the washing tank 2 allows to establish a rotation stop of the tank 5 with respect to the wall 2b, 2c of the wash tank 2.

Thus, the assembly of the tank 5 with respect to the washing tank 2 is facilitated and a dimensional dispersion of the tank 5 is allowed.

Preferably, the fixing tube 37 by screwing the tank 5 cooperates with a fixing piece by screwing 39 so that the tank 5 is fixed with the washing tank 2, where the fixing piece by screwing 39 cooperates with the inner face of the wall 2b, 2c of the washing tank 2 along which the tank 5 is arranged.

Thus, the fixing of the tank 5 to the wall 2b, 2c of the washing tank 2 is carried out by screwing a fixing piece by screwing 39 in the fixing tube 37 of the tank 5 until the support of the fixing piece by screwing 39 against the inner face of the wall 2b, 2c of the washing tank 2 along which the tank 5 is arranged.

In this case, the bolted fixing piece 39 is a revolution piece comprising a thread made on at least a part of its peripheral contour so that it acts together with a perforation made on at least a part of the surface of the opening 19 of the tank 5, wherein the opening 19 of the tank 5 is arranged in the fixing tube 37 of the tank 5.

Advantageously, the screw fixing part 39 comprises at least one air passage opening 40 which cooperates with at least one air vent opening 19 of the tank 5.

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Thus, an air circulation between the tank 5 and the washing tank 2 can be started, in particular during filling and emptying of the tank 5.

In addition, the addition of an air passage opening 40 in the fixing part by screwing 39 allows to minimize the costs of obtaining the dishwasher 1 by avoiding having to create another air passage opening in the tank 5 and another opening of passage of air in the washing tank 2 so that an aeration of the tank 5 and an aeration of the independent washing tank 2 are established.

In practice, a sealing gasket 41 is disposed between the tank 5 and the outer face of the wall 2b, 2c of the washing tank 2 along which the tank 5 is arranged.

Thus, the tightness between the tank 5 and the washing tank 2 can be established by means of a single sealing gasket 41 disposed between the tank 5 and the outer face of the wall 2b, 2c of the washing tank 2.

The placement of a sealing gasket 41 disposed between the tank 5 and the outer face of the wall 2b, 2c of the washing tank 2 makes it possible to avoid having to place a first sealing gasket between the fixing part by screwing 39 and the face inside a wall 2b, 2c of the washing tank 2 and a second sealing gasket between the fixing part by means of bolts 39 and the tank 5.

Furthermore, the placement of a sealing gasket between the fixing part by screwing 39 and the inner face of a wall 2b, 2c of the washing tank 2 has the disadvantage that this sealing gasket can be twisted by the friction associated with the rotation of the fixing part by screwing 39 against the inside of a wall 2b, 2c of the washing tank 2 during tightening of the fixing part by screwing 39.

Advantageously, the tank 5 is disposed between one of the side walls 2b or bottom 2c of the washing tank 2 and a wall of the frame (not shown) of the dishwasher 1.

Thus, placing the tank 5 between the wall 2b, 2c of the washing tank 2 and one of the walls of the frame makes it possible to occupy the maximum volume between the frame and the washing tank 2 without modifying the conventional dimensions of the dishwasher one.

Preferably, the tank 5 covers the width and height of the wall 2b, 2c of the washing tank 2 along which it is arranged in order to optimize the amount of liquid contained in the tank 5.

In this case, the tank 5 is suitable for storing wash and / or rinse water so that it is reused in the course of a subsequent phase of an operating cycle or during a subsequent operating cycle started by the dishwasher 1.

The washing machine 1 comprises a control unit (not shown), said control unit comprising at least one electronic card. Said at least one electronic card comprises at least one microcontroller suitable for starting predetermined operating cycles of the washing machine 1. Thus, the control unit controls in particular the water circulation pump 3, the water recovery pump 8, the drain pump 27, the valve 9 and the water supply valve of the network so that washing and / or rinsing water is recovered from the washing tank 2 to the water tank 5 in the course of an operating cycle, and the amount of water stored in the water tank 5 is reused in the course of a subsequent phase of an operating cycle or during a subsequent operating cycle, as described above.

Thanks to the present invention, the maintenance and fixing of the tank with the washing tank by inserting at least two fixing pins that are inserted between one of the side or rear walls of the washing tank and the upper part of the tank The washing tank is simple, inexpensive and fast.

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

Thus, the tank can be a storage tank for washing and / or rinsing water, a storage tank for water in the network, or even a storage tank for detergent.

Claims (4)

10 fifteen 1. Dishwashing machine (1) comprising a washing tank (2) and a tank (5), said washing tank (2) comprising at least one bottom wall (2a), a bottom wall (2c), two walls lateral (2b) and an upper part of tank (2d), said tank (5) being arranged outside said washing tank (2) and along one of the walls of said washing tank (2), characterized because said tank (5) comprises at least two fixing pins (44) that are inserted between one of said side walls (2b) or bottom walls (2c) of said washing tank (2) and said upper part of tank (2d ) of said washing tank (2). 2. Dishwashing machine (1) according to claim 1, characterized in that said upper part of tank (2d) of said washing tank (2) comprises at least two protruding elements (38) extending along the height of said wall (2b , 2c) of said washing tank (2) along which said tank (5) is arranged, wherein said at least two protruding elements (38) of said upper part of tank (2d), cooperate respectively with a of said at least two fixing pins (44) of said deposit (5). twenty 3. Dishwashing machine (1) according to claim 2, characterized in that said at least two fixing pins (44) of said tank (5) are inserted between said at least two protruding elements (38) of said upper part of tank (2d ) and said wall (2b, 2c) of said washing tank (2) along which said tank (5) is arranged according to an upward movement. 25 Dishwashing machine (1) according to any one of claims 1 to 3, characterized in that said tank (5) comprises at least one foot (45), wherein said at least one foot (45) cooperates with a support element (46) of a frame (47) that supports said washing tank (2). 30 Dishwashing machine (1) according to any of claims 2 or 3 and claim 4, characterized in that said at least one foot (45) of said tank (5) rests on said support element (46) of said frame (47) according to a rotation movement of said at least two fixing pins (44) of said tank (5) with respect to said at least two protruding elements (38) of said upper part of tank (2d). 35 Dishwashing machine (1) according to any one of claims 1 to 5, characterized in that said tank (5) comprises a fixing tube (37) by screwing through an opening (31) disposed in said wall (2b, 2c) of said washing tank (2) along which said deposit is arranged (5). 7. Dishwashing machine (1) according to claim 6, characterized in that said fixing tube (37) by screwing said tank (5) cooperates with a threaded fixing piece (39) so that said tank (5) is fixed to said washing tank (2), wherein said threaded fixing part (39) cooperates with the inner face of said wall (2b, 2c) of said washing tank (2) along which said tank (5) is arranged. Four. Five Dishwashing machine (1) according to claim 7, characterized in that said threaded fixing part (39) comprises at least one air passage opening (40) cooperating with at least one aeration opening (19) of said tank (5) . fifty Dishwashing machine (1) according to any one of claims 1 to 8, characterized in that said tank (5) is arranged between one of said side walls (2b) or bottom (2c) of said washing tank (2) and a wall of the frame of said dishwasher machine (1). 4 5 6 8 9