Dishwasher comprising a detergent dispenser

Abstract

The present invention relates to a dishwasher (1) comprising a tub (3) having more than one side wall (2), wherein the washing process is performed, a door (4) providing access into the tub (3) and a detergent dispenser (5) disposed on the door (4) wherein the chemical substances like detergent, softener and rinse aid are placed.

Claims

1. A dishwasher (1) comprising: a tub (3) having more than one side wall (2), wherein a washing process is performed in the tub (3), a door (4) providing access into the tub (3), a detergent dispenser (5) disposed on the door (4) wherein chemical substances like detergent, softener and rinse aid are placed, at least one water inlet (6) is arranged on the side wall (2) and provides water received from a main water source to directly pass into the tub (3) with the effect of pressure of the main water source, a nozzle (7) mounted to the water inlet (6) and directing the water received from the water inlet (6) towards the detergent dispenser (5), wherein the nozzle (7) is positioned on the side wall of the tub, the nozzle having a first portion protruding toward an exterior of the tub (3) and a second portion protruding toward an interior of the tub, wherein the nozzle comprises a hub protruding toward the side of the tub, wherein the water received from the water inlet is collected in the hub, and a retainer (13) coupled to the nozzle (7) to mount the nozzle to the water inlet (6).

2. A dishwasher (1) as in claim 1, wherein the water inlet (6) is situated on the front side of the side wall (2) facing the detergent dispenser (5).

3. A dishwasher (1) as in claim 1, wherein at least two racks (8, 108) are disposed one above the other inside the tub (3) and wherein items to be washed are placed and the water inlet (6) arranged on the side wall (2) between the upper rack (8) and the lower rack (108).

4. A dishwasher (1) as in claim 1, wherein an inlet port (10) is disposed on the hub (9), on the side of the hub (9) facing the water inlet (6), an outlet port (11) is situated on the side of the hub (9) facing into the tub (3), and a channel (12) extends between the inlet port (10) and the outlet port (11) and directs the water from the main water source collected inside the hub (9) towards the detergent dispenser (5).

5. A dishwasher (1) as in claim 4, wherein the hub is a hemispherical hub (9).

6. A dishwasher (1) as in claim 4, wherein the outlet port (11) faces the detergent dispenser (5).

7. A dishwasher (1) as in claim 4, wherein a cross-sectional area of the outlet port (11) is smaller than a cross-sectional area of the inlet port (10).

8. A dishwasher (1) as in claim 1, further comprising a water receptacle (15) having a water counter (14) that enables the amount of water received therein from the main water source to be measured and a hose (16) that allows the water leaving the water receptacle (15) to be conveyed to the water inlet (6).

9. A dishwasher (1) as claim 1, further comprising a water softening unit (17) that provides softening of the water, at least one chamber (18) wherein the water circulating inside the tub (3) during the washing is collected and a valve (19) that provides delivery of the water leaving the water softening unit (17) to the nozzle (7) and/or the chamber (18).

10. A dishwasher (1) as in claim 9, further comprising a control unit (20) that controls the operation of the valve (19) depending on a hardness of the water leaving the water softening unit (17).

11. A dishwasher (1) as in claim 9, wherein the control unit (20) provides the water leaving the water softening unit (17) during a regeneration process to be delivered to the chamber (18) by means of the valve (19).

12. A dishwasher (1) as in claim 9, wherein the control unit (20) provides soft water leaving the water softening unit (17) before and/or after a regeneration process to be delivered to the nozzle (7) by means of the valve (19).

13. A dishwasher (1) as in claim 9, further comprising a three-way control valve (19) having a first end, a second end, and a third end, wherein the first end is connected to the water softening unit (17), wherein the second end is connected to the chamber (18), and wherein the third end is connected to the nozzle (7).

14. A dishwasher (1) as in claim 1, wherein the water inlet and the nozzle are positioned on the side wall so as to provide an unobstructed path between the water inlet and the detergent dispenser for the water entering the tub.

15. A dishwasher (1) comprising: a tub (3) having more than one side wall (2), wherein a washing process is performed in the tub (3), a door (4) providing access into the tub (3), a detergent dispenser (5) disposed on the door (4), wherein chemical substances like detergent, softener and rinse aid are placed, a water inlet (6) arranged on a first surface of the side wall (2) facing the detergent dispenser, and a nozzle (7) mounted to the water inlet (6) by being positioned on a second surface opposite from the first surface of the side wall, such that the side wall remains between the nozzle and the water inlet, wherein the nozzle comprises a hub protruding toward the side of the tub, wherein the water received from the water inlet is collected in the hub, wherein the water inlet provides water received from a main water source to pass directly into the tub (3) with the effect of pressure of the main water source and the nozzle (7), wherein the nozzle directs the water received from the water inlet (6) towards the detergent dispenser (5).

Description

(1) The model embodiments relating to the dishwasher realized in order to attain the aim of the present invention are illustrated in the attached figures, where:

(2) FIG. 1is the schematic view of a dishwasher.

(3) FIG. 2is the sideways view of the dishwasher.

(4) FIG. 3is the perspective view of the dishwasher having the water receptacle, the hose and the nozzle in an embodiment of the present invention.

(5) FIG. 4is the perspective view of the nozzle, the hose and the retainer.

(6) FIG. 5is the rear view of the nozzle.

(7) FIG. 6is the rear perspective view of the nozzle.

(8) FIG. 7is the rear view of the retainer and the hose.

(9) FIG. 8is the front view of the retainer and the hose.

(10) FIG. 9is the front perspective view of the retainer and the hose.

(11) FIG. 10is the top view of the dishwasher having the water receptacle, the water softening unit, the valve, the hose and the chamber in an embodiment of the present invention.

(12) The elements illustrated in the figures are numbered as follows:

(13) 1. Dishwasher

(14) 2. Side wall

(15) 3. Tub

(16) 4. Door

(17) 5. Detergent dispenser

(18) 6. Water inlet

(19) 7. Nozzle

(20) 8. 108 Rack

(21) 9. Hub

(22) 10. Inlet port

(23) 11. Outlet port

(24) 12. Channel

(25) 13. Retainer

(26) 14. Water counter

(27) 15. Water receptacle

(28) 16. Hose

(29) 17. Water softening unit

(30) 18. Chamber

(31) 19. Valve

(32) 20. Control unit

(33) The dishwasher (1) comprises a tub (3) having more than one side wall (2), wherein the washing process is performed, a door (4) providing access into the tub (3) and a detergent dispenser (5) disposed on the door (4) wherein the chemical substances like detergent, softener and rinse aid are placed. The user accesses into the tub (3) by means of the door (4) and places the items to be washed inside the tub (3).

(34) The dishwasher (1) furthermore comprises at least one water inlet (6) arranged on the side wall (2), which provides the water received from the mains to pass into the tub (3) directly with the effect of the mains pressure and a nozzle (7) mounted to the water inlet (6), which directs the water received from the water inlet (6) towards the detergent dispenser (5). The nozzle (7) is mounted to the front of the water inlet (6). The mains water reaches the water inlet (6) with almost the same pressure as supplied by the mains and is delivered directly onto the detergent dispenser (5) by means of the nozzle (7). Almost the entire amount of the detergent contained in the detergent dispenser (5) is provided to be delivered into the tub (3) by mixing with the mains water. Consequently, almost the entire amount of the detergent is provided to be flushed from the detergent dispenser (5) thereby preventing detergent residue from remaining in the detergent dispenser (5). The dishes are provided to be washed and rinsed effectively (FIG. 1, FIG. 2).

(35) In an embodiment of the present invention, the water inlet (6) is situated on the front side of the side wall (2) facing the detergent dispenser (5). Thus, the mains water is provided to be sprayed onto the detergent dispenser (5) without deviating by disposing the nozzle (7) at the nearest point to the detergent dispenser (5). It is provided that no obstruction is situated on the flow path of the mains water while the mains water leaving the nozzle (7) is sprayed onto the detergent dispenser (5). Furthermore, the mains water is provided to be delivered to the detergent dispenser (5) without mixing with dirt etc. (FIG. 2).

(36) In an embodiment of the present invention, the dishwasher (1) comprises at least two racks (8, 108) disposed one above the other inside the tub (3) and whereon the items to be washed are placed and the water inlet (6) arranged on the side wall (2) between the upper rack (8) and the lower rack (108). Thus, the nozzle (7) is prevented from remaining behind the items situated in the rack (8, 108) (FIG. 2).

(37) In an embodiment of the present invention, the nozzle (7) comprises a hub (9) wherein the water received from the water inlet (6) is collected, an inlet port (10) disposed on the hub (9), on the side of the hub (9) facing the water inlet (6), an outlet port (11) situated on the side of the hub (9) facing into the tub (3) and a channel (12) extending between the inlet port (10) and the outlet port (11) and which directs the mains water collected inside the hub (9) towards the detergent dispenser (5). The hub (9) serves both as a dent that allows water coming from the mains to be stored and also as a protector that prevents the rack (8, 108) and/or objects from impacting the front of the outlet port (11). The water received from the mains is collected inside the hub (9) and enters the channel (12) by means of the inlet port (10). The water passing through the channel (12) is directed to the detergent dispenser (5) by means of the outlet port (11). The detergent contained in the detergent dispenser (5) mixes with the water leaving the outlet port (11) and the detergent is flushed from inside the detergent dispenser (5) to be delivered to the tub (3) (FIG. 4, FIG. 5, FIG. 6).

(38) In an embodiment of the present invention, the hub (9) is shaped almost as a hemisphere. Thus, the hub (9) forms a vortex in the mains water thereby providing it to move forward in a more pressurized state and to be discharged from the outlet port (11). The channel (12) is arranged on the inner side of the hub (9). The front of the outlet port (11) is prevented from being covered thanks to the hub (9) that protrudes towards inside the tub (3) (FIG. 4).

(39) In an embodiment of the present invention, the outlet port (11) faces the detergent dispenser (5). Consequently, the mains water is provided to be sprayed onto the detergent dispenser (5) from the nearest distance. The front side of the outlet port (11) is prevented from being covered and the outlet port (11) from being damaged by means of the hub (9).

(40) In an embodiment of the present invention, the cross-sectional area of the outlet port (11) is smaller than the cross-sectional area of the inlet port (10). The mains water received from the water inlet (6) with the mains pressure fills into the hub (9) and passes through the inlet port (10). The pressure of the mains water is provided to be increased by means of the cross-sectional area of the outlet port (11) being smaller than that of the inlet port (10). Thus, the effectiveness of the mains water in flushing detergent from inside the detergent dispenser (5) is increased.

(41) The channel (12) extends from the inlet port (10) towards the outlet port (11) by getting narrower. Thus, pressure of the mains water is provided to be increased while moving forward inside the channel (12) from a wider diameter to a narrower diameter and to leave the channel (12) with a higher pressure (FIG. 5).

(42) In an embodiment of the present invention, the dishwasher (1) comprises a retainer (13) that provides the nozzle (7) to be mounted to the water inlet (6). The side wall (2) remains between the nozzle (7) and the water inlet (6). Thus, the nozzle (7), fixed by bayonet connection to the retainer (13), is prevented from being dislodged from the side wall (2) or from sliding off its location. Furthermore a sealing element is situated between the nozzle (7) and the retainer (13). The sealing element provides leak-proofing between the nozzle (7) and the retainer (13) while the mains water is delivered from the water inlet (6) to the nozzle (7) (FIG. 7, FIG. 8, FIG. 9).

(43) In an embodiment of the present invention, the dishwasher (1) comprises a water receptacle (15) having a water counter (14) that enables the amount of water received therein from the mains to be measured and a hose (16) that allows the water leaving the water receptacle (15) to be conveyed to the water inlet (6). The amount of water received from the mains is determined by the water counter (14) and the amount of water received into the dishwasher (1) during the washing is kept under control (FIG. 3, FIG. 10).

(44) In an embodiment of the present invention, the dishwasher (1) comprises a water softening unit (17) that provides the softening of the water, a chamber (18) wherein the water circulating inside the tub (3) during the washing is collected and a valve (19) that provides the delivery of the water leaving the water softening unit (17) to the nozzle (7) and/or the chamber (18). The amount of water received into the dishwasher (1) is determined by means of the water counter (14) located inside the water receptacle (15). The water received from the mains is delivered to the water softening unit (17) by passing through the water receptacle (15). The mains water is softened by means of the resin in the salt container while passing through the water softening unit (17). After a couple of washings, the resin, water softening capacity of which decreases, is regenerated by being mixed with salt water and its water softening capacity is increased. Spraying the salt water generated after the regeneration process directly into the tub (3) causes the surface of the tub (3) to rust. Therefore, during and/or just after the regeneration process, the salt water is delivered to the chamber (18) by means of the valve (19) and the salt water is prevented from being directly delivered into the tub (3) (FIG. 10).

(45) In an embodiment of the present invention, the dishwasher (1) comprises a control unit (20) that controls the operation of the valve (19) depending on the hardness of water leaving the water softening unit (17).

(46) In an embodiment of the present invention, the control unit (20) provides the water leaving the water softening unit (17) by means of the valve (19) to be delivered to the chamber (18) by means of the valve (19). The salt water discharged from the water softening unit (17) during the regeneration process is prevented from being delivered to the nozzle (7) by means of the control unit (20) (FIG. 1).

(47) In an embodiment of the present invention, the control unit (20) provides the soft water passed through the water softening unit (17) before and/or after the regeneration process to be delivered to the nozzle (7) by means of the valve (19).

(48) In an embodiment of the present invention, the valve (19) is a three-way control valve (19), with one end connected to the water softening unit (17), one end to the chamber (18) and the other end to the nozzle (7). The water leaving the water softening unit (17) is directed to the nozzle (7) or the chamber (18) by means of the valve (19) (FIG. 10).

(49) By means of the present invention, a dishwasher (1) is realized having the nozzle (7) that enables the mains water to be directed to the detergent dispenser (5) by benefiting from the mains pressure. Thus, the mains water is provided to be sprayed onto the detergent dispenser (5) in a pressurized manner and to flush the detergent contained in the detergent dispenser (5) completely.

(50) It is to be understood that the present invention is not limited to the embodiments disclosed above and a person skilled in the art can easily introduce different embodiments. These should be considered within the scope of the protection postulated by the claims of the present invention.