EP2012644A1

EP2012644A1 - Dishwasher, in particular domestic dishwasher

Info

Publication number: EP2012644A1
Application number: EP07727731A
Authority: EP
Inventors: Johannes BÜSING; Daniel Delle; Gerhard Fetzer; Peter Geissler; Norbert Gerstner; Hubert Groll; Mathias Herrmann; Dieter Hotz; Stefan Kasbauer
Original assignee: BSH Bosch und Siemens Hausgeraete GmbH
Current assignee: BSH Hausgeraete GmbH
Priority date: 2006-04-21
Filing date: 2007-04-03
Publication date: 2009-01-14
Anticipated expiration: 2027-04-03
Also published as: PL2012644T3; KR20080108528A; EP2012644B1; US20090101182A1; WO2007122082A1; CN101426410B; ES2401980T3; US8691025B2; DE102006018539A1; CN101426410A

Abstract

The invention relates to a dishwasher (1), in particular a domestic dishwasher, comprising a washing space, in which the soiled articles can be positioned for cleaning, and at least one or more operating devices (11) which operate during the cleaning operation and are arranged in at least one opening in a bounding face of the washing space and/or of a container (2) which can be positioned in the washing space, characterized in that in addition at least one spray device (5) for spraying cleaning fluid is integrated into the washing space in at least one operating device (11).

Description

description

Dishwasher, in particular domestic dishwasher

The invention relates to a dishwasher, in particular household dishwasher, with a washing container for receiving items to be washed and at least one operating device for influencing and / or detecting the biological and / or chemical and / or physical properties of the cleaning liquid, for. As pH, temperature, surface tension or hardness, in and / or on the washing.

In dishwashers are to improve the

Cleaning effect often in addition to at least one rotating spray also more spraying, for example in the form of spray nozzles, used to avoid when cleaning the dishes a Rückanschmutzung by spraying by means of the spray. Various configurations and arrangements of such spraying devices are known from the prior art.

The document DE 84 34 858.5 U1 shows a washing machine with an interior in which are provided at the top of an outwardly curved end plate embedded therein spray nozzles.

In JP 2004113683 A a dishwasher is shown, wherein

Auxiliary nozzles are arranged on the rear wall in the washing compartment of the dishwasher.

Document DE 1 628 596 A shows a dishwasher in which a nozzle for producing a fan-shaped jet of water is provided in the upper region of the washing compartment adjacent to the ceiling.

From the document DE 29 42 051 A1 discloses a dishwasher is known which comprises a trough which is accessible from above via an opening, wherein the opening can be covered by a lid. Within the lid spraying devices are provided, which are directed substantially downwards.

The document DE 197 08 805 A1 shows a dishwasher with obliquely arranged dish rack, being arranged for cleaning flushing nozzles below and above the basket. The upper flushing nozzles are fixed in the ceiling of the flushing chamber and the lower flushing nozzles are 200502033 foreign version

formed on a cassette-type washing distributor on the underside of the washing compartment.

From the publication JP 03151927 A, a dishwasher is known which has a spray nozzle with a cylindrical main body and corresponding outlet openings in the main body at the top in the washing compartment.

The document DE 694 09 198 T2 discloses a dishwasher, the washing compartment is open at the top, being held over the opening by an operator dishes in the washing compartment. The cleaning of the dishes via arranged in the region of the opening nozzles, which are integrated in the wall of the washing compartment.

Dishwashers known from the prior art for

Cleaning liquid-based cleaning have the disadvantage that the spraying devices used are integrated as separate components in the washing compartment. This requires a lot of effort in the production of the dishwasher, as for example in the walls of the washing compartment separate openings for attachment of the nozzles and separate lines must be provided for cleaning liquid supply of spray.

The object of the invention is therefore to provide a dishwasher, which is easy to build and manufacture.

This object is achieved by a dishwasher according to independent claim 1. Further developments of the invention are defined in the dependent claims.

In a dishwasher according to the invention, in particular

Domestic dishwashing machine, with a washing container for receiving items to be washed and at least one operating device for influencing and / or detecting the biological and / or chemical and / or physical properties of the cleaning liquid, for. As pH, temperature, surface tension or hardness, in and / or on the washing container, which does not serve in particular the spraying of cleaning liquid on the items to be washed, is in the at least one 200502033 foreign version

Operating device integrated at least one spraying device for spraying cleaning liquid on the dishes.

Preferably, the operating device is installed in an opening or recess of a wall of the washing compartment.

The invention is based on the finding that

Spraying devices in the washing compartment do not necessarily have to be formed separately from already existing operating components of the dishwasher. In particular, those operating devices for which an opening is provided in the wall or in the bottom or in the lid of the washing compartment can also assume the function of a spraying device, since an access from the outside into the washing compartment is created via the already existing opening, via the cleaning liquid can be supplied for spraying in the washing compartment. The essence of the invention thus consists in that operating devices known per se, which do not primarily have the function of a spraying device, are equipped with a spraying device. As a result, the manufacturing costs for the dishwasher are reduced, since no separate openings and passages for the sprayers must be provided in the walls of the washing compartment.

In a particularly preferred embodiment of the invention, the at least one operating device is a device for supplying cleaning fluid and / or other addition means in the washing compartment or a sensor, for. B. for temperature and / or turbidity of the wash liquor and / or loading state and / or moisture. In this case, it is possible in particular to use an already integrated cleaning fluid supply system in order to divert cleaning fluid for the spray devices from this system. As a result, the production of the dishwasher is further simplified because it can be dispensed with the integration of a separate cleaning liquid supply system.

Preferably, the spray is in the water and / or

Spülflotteneinlaufsystem the dishwasher integrated. Additionally or alternatively, however, it is also possible that the spraying device in 200502033 foreign version

an adding device for supplying detergent and / or rinse aid and / or softener is integrated.

In a further preferred embodiment of the invention, operating devices are preferably used for the integration of the spraying, which are arranged in an upper region in the washing compartment, in particular in the upper half, preferably in the upper third and more preferably in the upper quarter. This allows the sprayer to take over the function of a shower head, which particularly effectively prevents back soiling of the soiled items during cleaning. When the operating device in which the spray device is integrated is arranged in a boundary surface extending from a bottom, in a preferred embodiment of the invention the spraying device is arranged in the upper region of the operating device. In this way, the previously described, advantageous roof shower function of the spray can be achieved.

In a further embodiment of the invention

Dishwasher several spraying devices are provided, which are arranged in the same plane and / or in several staggered planes, wherein the planes preferably extend in the horizontal direction. This ensures a particularly good cleaning in different areas of the washing compartment. In particular, it is also possible to specifically purify certain objects which are arranged in a predetermined plane in the washing compartment.

In a further embodiment of the invention, the cleaning is effected mainly by a spray arm, which is arranged for example in the lower region of the washing compartment. Nevertheless, it is also possible to use only such spraying devices in a dishwashing machine or optionally to use additional other spraying devices which are not designed as a spraying arm. 200502033 foreign version

In a particularly preferred embodiment is as

Spray device uses a spray nozzle, which can be designed very compact and therefore can be easily integrated into existing operating equipment. The spray nozzle preferably comprises a nozzle body which is held in a nozzle holder, wherein the nozzle holder on a

Cleaning fluid supply system is connected. The nozzle body is fastened here, for example, via a bayonet lock in the nozzle holder. In order to ensure a particularly good distribution of the cleaning liquid in the washing compartment, the nozzle body preferably has fan-like arranged cleaning liquid outlet openings.

In a particularly preferred embodiment of the invention, the dishwasher is a so-called drawer dishwasher. The rinse container consists of an open-topped container, ie a "drawer" with a bottom and a partition with a front wall, a rear wall and two side walls The container, which is open at the top, is used to store soiled items or items to be washed In a pushed-out position, the container which is open at the top is substantially outside the housing of the dishwasher, so that the user can load and unload the items in the container which is open at the top In the upwardly extending conversion, the at least one operating device is in the upper region of the walling, in particular in the upper half of the walling, preferably in the upper one Dri Since this operating device has a spraying device, this ensures spraying of the soiled articles from above, ie a roof shower function is realized without the spraying device being integrated in the cover 200502033 foreign version

got to. This arrangement is to be preferred in dishwashers in a drawer shape, since the arrangement of the spray in the lid is structurally difficult to implement. This is because the lid remains in the fixed dishwasher housing and the drawer or the open-topped container can not be pulled out. However, the cleaning fluid delivery system is for the most part located in the drawer. It would therefore have to be provided consuming connecting devices, which ensure a cleaning fluid connection between the immovable lid and the movable drawer. On such devices can be omitted if the spray is already integrated in the movable drawer itself.

Embodiments of the invention are described below with reference to the accompanying figures.

[0024] In the drawings:

Fig. 1 is a schematic, partially sectioned front view of a container of a dishwasher according to the invention;

FIG. 2 shows a perspective view of an addition device in which, according to the invention, a spray nozzle is integrated; FIG.

Fig. 3 is a perspective view of a spray nozzle used in the invention;

Fig. 4 is an enlarged detail view of the spray body of

Spray nozzle of Fig. 3; and

Fig. 5 is a schematic cross-sectional view which illustrates how the spray nozzle according to the invention can be incorporated in the dishwasher according to the invention.

The embodiment of the invention shown in Fig. 1 relates to a

Dishwasher in a drawer form, in which the dishes in an upwardly open container 2 is granted. The container 2 in this case has a bottom 2a, a rear wall 2d and two opposite side walls 2b and 2c and a front wall (not shown). After placing the dishes in the upper opening of the container 2, this can in the housing of the invention 200502033 foreign version

Dishwasher are pushed, wherein after insertion of an upper lid 3 in the direction P on the upper side of the container is lowered, whereby the container is sealed. The cleaning of the dishes is effected inter alia via at least one rotatable spray arm 4 or at least one non-movable spray pipe (so-called spray floor) at the bottom 2a of the container 2a, which is connected to a (not shown) cleaning liquid supply. Further cleaning of the dishes is effected via spray nozzles 5 and 5 ', which are provided in the upper region of the container. The spray nozzles 5 'are in this case arranged in separate openings on the container rear side 2d or on the right side wall 2c and also connected to a cleaning liquid supply.

The dishwasher according to the invention shown in FIG. 1 is characterized in that a spray nozzle 5 in an addition device 11 on the z. B. left side wall 2b of the container 2 is provided. It can thereby be dispensed with a further separate opening in the container wall, since an existing opening, which is provided for the feed device 11, is also used for the spray nozzle 5. The spray nozzles 5 and 5 'and the feed device 11 are shown schematically in FIG. 1 and will be described in more detail below. In the feed device shown in FIG. 1, however, it is indicated that the spray nozzle 5 is positioned in the upper area of the feed device below a means for dispensing feeders, this dispenser being closed by a flap 11c or openable (see also FIG. 2) ).

By the arrangement of the nozzle 5 and also the nozzle 5 'in the upper

Area of the container 2 take these nozzles essentially the function of a shower head, without being integrated in the lid 3. This arrangement is to be preferred in drawer washers, since - as mentioned above - an integration of the spray nozzles in the lid 3 is structurally difficult to accomplish. The cleaning of the dishes takes place in the dishwasher of Fig. 1 in different levels. On the one hand, the dishes are preferably made by a spray arm 4, which in the 200502033 foreign version

arranged lower level E1, cleaned by an upward spray. The cleaning is also carried out in two upper levels E2 and E3, in each of which two spray nozzles 5 and 5 'are provided.

FIG. 2 shows a perspective view of the feed device 11 indicated schematically in FIG. 1. The feed device essentially consists of a cuboid body with a front side 11a, the edge of which projects beyond the rest of the body. The feed device is inserted into a corresponding opening in the container 2 and fastened to the container by fastening means, for example by a screw connection. The adding device comprises a hinged lid 11 b, behind which there is a receptacle for positioning cleaning agents. Through the hinged lid, the detergent is placed in the feeder by the operator, and during the cleaning operation, the flip lid opens in due course to discharge the feeder to aid in cleaning. Further, another hinged lid 11c is provided, behind which there is a device for receiving rinse aid. Above the hinged lid 11c, the spray nozzle 5 according to the invention is arranged, which is shown only schematically in FIG. In this case, the spray nozzle 5 is connected to a cleaning fluid supply (not shown), for example via a hose.

A possible embodiment of the spray nozzle is shown in FIG. 3. This figure shows a perspective view of a spray nozzle 5, as it is usable in the dishwasher according to the invention of FIG. The nozzle comprises a nozzle body 6, which is arranged in a nozzle receptacle 7. The nozzle holder has a front portion with an outer cylindrical ring 7a and an inner cylindrical ring 7b, between which an (not apparent from Fig. 3) O-ring 9 is arranged, which rests against the back of the container wall in the installed state of the nozzle and a seal against escaping spray water causes. On the inside of the inner ring 7b there is a (not shown in FIG. 3) cylindrical external thread 7d, on the one 200502033 foreign version

annular nut 8 is screwed with internal thread. When installed, the inside of the annular nut rests on the inside of the container wall. The nozzle body 6 is inserted in the inner ring 7b via a bayonet lock (not shown).

The receptacle 7 has at its rear end a tubular, curved connecting piece 7c, wherein the lower end of the connecting piece is sealingly connected to a corresponding cleaning liquid supply line, in particular with a hose. For sealing any known from the prior art means, in particular a clamp connection between the hose and connector 7c may be used. The front side of the nozzle body 6 has substantially horizontally aligned slots or lamellae 6a, which are arranged in a fan shape, so that cleaning liquid outlet openings 6b are formed between the lamellae. By such a design of the nozzle body, a good fanning of the spray for loosening dirt on the dishes can be achieved. Nevertheless, the embodiment of the nozzle shown in Fig. 3 is merely exemplary and any other embodiment of a nozzle is conceivable.

Fig. 4 shows in an enlarged perspective view of the nozzle body 6 shown in Fig. 3. At the front portion of the nozzle body, which has the slots or slats 6a and the intervening cleaning liquid outlet openings 6b, closes a substantially cylindrical portion 6c, wherein at the back of the section cleaning liquid enters the nozzle body. Further, a guide 6d is provided at the rear end of the portion, which forms a part of the bayonet closure for fixing the nozzle body in the receptacle 7.

Fig. 5 shows a schematic cross-sectional view of the nozzle shown in Fig. 3 in the installed position in a wall of the container 2. For installation, the wall has an opening through which the cylindrical external thread 7d is pushed in until the front 200502033 foreign version

of the inner ring 7b and the outer ring 7 a rests against the back of the housing wall. From Fig. 5 and the O-ring 9 can be seen, which is arranged in the space between the inner ring 7b and outer ring 7a and causes a seal by abutment against the outside of the container. For fixed attachment of the nozzle in the container, the nut 8 is screwed onto the external thread 7c from the inside of the container. From Fig. 4, a hose piece 10 is further seen, which is attached to the lower end of the tubular connector 7c. Water enters the nozzle via the hose piece from a water supply, as indicated by the arrow P1. This water then passes through the openings 6b of the nozzle body 6 like a fan into the interior, as indicated by the arrows P2.

LIST OF REFERENCE NUMBERS

1 dishwasher

2 containers

2a bottom

2b, 2c side walls

2d rear wall

3 lid

4 spray arm

[0045] 5, 5 'spray nozzle

6 nozzle body

6a slats

6b cleaning liquid outlet openings

6c cylindrical section

6d guide

[0051] 7 nozzle receptacle

7a outer ring

7b inner ring

[0054] 7c connecting piece

7d external thread

8 mother

9 O-ring 200502033 foreign version

10 hose

[0059] 11 feed device

11a front side

11b, 11c flaps

Claims

200502033 International Version claims

1. Dishwasher (1), in particular household dishwasher, with a washing container for receiving items to be washed and at least one operating device (11) for influencing and / or detecting the biological and / or chemical and / or physical properties of the cleaning liquid, for. As pH, temperature, surface tension or hardness, in and / or on the washing container, characterized in that in the at least one operating device (11) at least one spraying device (5) is integrated for spraying cleaning liquid on the dishes.

2. Dishwasher according to claim 1, characterized in that the at least one operating device (11) is a device for supplying adding agents in the washing compartment.

3. Dishwasher according to claim 2, characterized in that the feed device is used for supplying detergent and / or rinse aid and / or softener.

4. Dishwasher according to claim 1, characterized in that the operating device (11) is a sensor.

5. Dishwasher according to one of the preceding claims, characterized in that the at least one spraying device (5) in the water and / or Spülflotteneinlaufsystem the dishwasher (1) is integrated.

6. Dishwasher according to one of the preceding claims, characterized in that the at least one operating device (11) is arranged in an upper region in the washing, in particular in the upper half, preferably in the upper third and more preferably in the upper quarter.

7. Dishwasher according to one of the preceding claims, characterized in that the at least one operating device (11) in a front wall and / or rear wall and / or side wall of the washing compartment is arranged and / or the at least one spraying device (5) in an upper region of Operating device (11) is arranged.

8. Dishwasher according to one of the preceding claims, characterized in that a plurality of spray devices (5) are provided, which in the same plane (E2, E3) and / or in a plurality of each other 200502033 foreign version

offset planes (E2, E3) are arranged, wherein the planes (E2, E3) preferably extend in the horizontal direction.

9. Dishwasher according to one of the preceding claims, characterized in that further comprises at least one spray arm (4) or spray pipe is provided, which is preferably arranged in the lower region of the washing compartment.

10. Dishwasher according to one of the preceding claims, characterized in that the at least one spraying device (5) is a spray nozzle.

11. Dishwasher according to claim 10, characterized in that the spray nozzle comprises a nozzle body (6) which is held in a nozzle holder (7), wherein the nozzle holder (7) is connected to a cleaning liquid supply system.

12. Dishwasher according to claim 11, characterized in that the nozzle body (6) via a bayonet lock in the nozzle holder (7) is attached.

13. Dishwasher according to claim 11 or 12, characterized in that the nozzle body (6) fan-like arranged cleaning liquid outlet openings (6b).

14. Dishwasher according to one of the preceding claims, characterized in that the washing container (2) for receiving items in particular horizontally in the housing is displaceable and in a position located outside of the housing of the washing container (2) of the washing compartment (2) is open at the top for inserting and removing items to be washed.

15. Dishwasher according to claim 14, characterized in that the washing compartment (2) has a bottom (2 a), two side walls (2 b, 2 c), a rear wall (2 d) and a front wall as a drawer dishwasher, wherein the at least one operating device in upper portion of the side walls (2b, 2c) and / or rear wall (2d) and / or front wall, in particular in the upper half of the side walls (2b, 2c) and / or rear wall (2d) and / or front wall, preferably in the upper third and particularly preferably in the upper quarter of the side walls (2b, 2c) and / or rear wall (2d) and / or front wall, is arranged. 200502033 foreign version

16. Dishwasher according to one of the preceding claims, characterized in that the operating device (11) in an opening or recess of a wall (2 b, 2 c, 2 d), and cover wall or lid of the washing compartment is installed.