EP3285632A1 - Sprüharm und geschirrspülmaschine - Google Patents
Sprüharm und geschirrspülmaschineInfo
- Publication number
- EP3285632A1 EP3285632A1 EP16712048.4A EP16712048A EP3285632A1 EP 3285632 A1 EP3285632 A1 EP 3285632A1 EP 16712048 A EP16712048 A EP 16712048A EP 3285632 A1 EP3285632 A1 EP 3285632A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spray arm
- valve
- dishwasher
- spray
- rinsing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
- A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
- A47L15/22—Rotary spraying devices
- A47L15/23—Rotary spraying devices moved by means of the sprays
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
- A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
- A47L15/22—Rotary spraying devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4278—Nozzles
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/50—Racks ; Baskets
- A47L15/502—Cutlery baskets
Definitions
- the present invention relates to a spray arm for a dishwasher and a dishwasher with such a spray arm.
- a dishwasher may have a spray arm for applying wash ware with rinsing liquor, which contains the rinsing liquor inside a rinsing container
- Dishwasher distributed. Usually, these spray arms are rotatably mounted, but there are also known dishwashers with fixed spray arms.
- an outlet nozzle can be provided on the underside of the spray arm.
- the discharge nozzle it is necessary to make the discharge nozzle in the diameter as large as possible.
- the largest possible diameter of the outlet nozzle means that the rinsing liquid pressure at the cleaning spray nozzles of the spray arm drops, whereby the cleaning performance of the dishwasher can be reduced.
- an object of the present invention is to provide an improved spray arm.
- a spray arm for a dishwasher comprises a discharge nozzle provided on the underside of the spray arm for emptying rinsing liquor from the spray arm, a valve for selectively closing or opening the discharge nozzle, wherein the valve can be moved from an open position to a closed position by means of a rinse liquor pressure of the rinse liquor and wherein the valve is in Direction of the open position is biased so that the valve opens automatically when the Spülflottentik falls below a predetermined value.
- the dimensioning of the outlet nozzle is thus no longer necessarily a compromise between the rapid emptying of the spray arm and the lowest possible flushing float pressure loss.
- the valve is provided at the outlet nozzle, the outlet nozzle can be dimensioned significantly larger compared to known approaches. As a result, a better and faster emptying of the Spray arm guaranteed. Carryover of rinsing liquor or dirty water from one rinsing section of a rinsing process to the next is prevented or at least reduced.
- the valve may be spring biased toward the open position. In the closed position, the valve may be completely closed or a cross-section of the outlet nozzle may be reduced compared to the open position of the valve. That is, even in the closed position, rinsing water can still escape from the outlet nozzle.
- the spray arm preferably has cleaning spray nozzles arranged on the top side.
- the spray arm may also have underside cleaning spray nozzles.
- the spray arm is preferably an upper or lower spray arm of the dishwasher.
- the spray arm can be between an upper Spülgutage and a lower
- the dishwasher be arranged.
- the spray arm is preferably rotatably attached to an inlet pipe.
- the inlet pipe can be attached to the upper Spülgutage. With the aid of a coupling, the inlet pipe is fluidically connectable to a feed pipe of the dishwasher.
- the outlet nozzle can in
- the discharge nozzle may be provided at an end portion of the spray arm.
- the discharge nozzle is at a lowest point of the
- the spray arm is preferably applied with the aid of a pump with rinsing water.
- the valve opens automatically as soon as the pump no longer acts on the spray arm with wash liquor.
- the predetermined value may be, for example, between 0.5 and 0 bar.
- the rinsing liquor preferably applies to the valve a force acting against a counterforce generated by the bias, in particular by the spring bias, of the valve. Once the force exerted by the wash liquor is greater than the counteracting force of the valve, the valve closes. As soon as the restoring force of the valve is greater than the force applied by the wash liquor to the valve, the valve opens automatically.
- the spring force or restoring force of the valve results from the inherent rigidity of the material of the valve. Alternatively, a dedicated spring element for generating the restoring force may be provided.
- the valve has a plate-shaped
- the valve body may be rectangular or circular.
- the valve body is connected in particular by means of a hinge to a wall of the spray arm.
- the hinge may be part of the valve body.
- valve body Open position arranged obliquely to a wall of the spray arm.
- the valve body is arranged in the open position obliquely to an inflow direction of the wash liquor in the spray arm.
- the rinsing liquor can apply a force to the valve body.
- the valve body may be positioned at an angle oblique to the wall. The angle may for example have a value between 10 ° and 45 °, more preferably between 15 ° and 40 °, more preferably between 20 ° and 35 °.
- the plate-shaped valve body in the direction of an end portion of the spray arm. This prevents the wash liquor from flowing under the valve body and pushing the valve.
- valve is formed integrally with the spray arm.
- the spray arm and the valve may be formed as a plastic injection molded component.
- the spray arm and the valve may be made of polypropylene (PP).
- PP polypropylene
- the valve body is preferably connected by means of a hinge to the wall of the spray arm.
- the valve has a film hinge.
- the thickness of the film hinge can be adjusted, how large the bias for biasing the valve body in the direction of the open position.
- the valve and the spray arm are multi-part.
- the valve is inserted into the outlet nozzle.
- the valve can be overmolded with material of the spray arm.
- the valve may for example be made of a silicone material.
- the valve or the valve body may be made of a metal material.
- the valve body may be a leaf spring.
- a base portion of the valve is snapped into the spray arm.
- the base portion has a twist protection, which prevents the base portion from twisting in the outlet nozzle.
- the functionality of the valve is permanently guaranteed.
- the spray arm has two outlet nozzles, each of which has a valve.
- the outlet nozzles may for example be provided on both sides of a rotation axis of the spray arm. Furthermore, an outlet nozzle in the region of the axis of rotation and a further outlet nozzle in the region of an end portion of the spray arm may be provided. Furthermore, the spray arm can also have three or more such outlet nozzles.
- the outlet nozzle preferably has a diameter of greater than 3 mm. In particular, the outlet nozzle has a diameter of 4 to 7 mm, more preferably from 4.5 to 6.5 mm, more preferably from 5 to 6 mm.
- the outlet nozzle is at least partially closed in the closed position of the valve. Alternatively, the outlet nozzle may be completely closed in the closed position of the valve.
- a dishwasher is proposed with such a spray arm.
- the dishwasher is in particular a household dishwasher.
- the dishwasher has a washing container, which is preferably watertight closed by a door.
- a washing container which is preferably watertight closed by a door.
- an upper Spülgutage and a lower Spülguta may be provided in the washing container, wherein the spray arm is preferably arranged between the Spülgutagen.
- a feed tube of the spray arm may be attached to the upper Spülgutage.
- Dishwasher are the subject of the dependent claims and the embodiments of the spray arm and / or the dishwasher described below. In the following, the spray arm and / or the dishwasher will be explained in more detail on the basis of preferred embodiments with reference to the enclosed figures.
- Fig. 1 shows a schematic sectional view of an embodiment of a
- Fig. 2 shows a schematic sectional view of an embodiment of a spray arm for the dishwasher according to FIG. 1;
- FIG. 3 shows a schematic sectional view of a further embodiment of a spray arm for the dishwasher according to FIG. 1
- FIG. 4 shows a schematic sectional view of a further embodiment of a spray arm for the dishwasher according to FIG. 1;
- FIG. 5 shows a schematic sectional view of a further embodiment of a spray arm for the dishwasher according to FIG. 1;
- Fig. 6 is a schematic perspective view of the spray arm of Fig. 5;
- FIG. 7 shows a schematic sectional view of a valve for the spray arm according to FIG. 5.
- FIG. 1 shows a greatly simplified schematic sectional view of an embodiment of a dishwasher 1.
- the dishwasher 1 is a household dishwasher.
- the dishwasher 1 has a rinsing container 2 which can be closed watertight by a door 3.
- a feed pipe 4 is arranged within the washing container 2.
- the feed tube 4 preferably extends on a rear wall 5 of the washing container 2.
- the feed tube 4 can be acted upon with the aid of a pump, not shown, with wash liquor.
- the supply pipe 4 extends along the rear wall 5 and along a ceiling 6 of the washing container 2.
- a roof spray device 7 is provided, which is acted upon by the feed tube 4 with rinsing water.
- a lower spray arm 8 and an upper spray arm 9 are further provided.
- the spray arms 8, 9 have spray nozzles 10, of which in Fig. 1 only one is provided with a reference numeral. Nozzle nozzles provided on the lower spray arm 8 are not shown in FIG.
- the lower spray arm 8 preferably has only spray nozzles arranged on the top side.
- the upper spray arm 9 may also have underside spray nozzles in addition to the spray nozzles 10 provided on the upper side.
- the upper spray arm 9 is rotatably mounted on a feed pipe 1 1.
- the inlet pipe 1 1 has a curvature section 12 which is relative to the inlet pipe 1 1 is curved 90 ° downwards.
- the upper spray arm 8 is rotatably mounted.
- the dishwasher 1 further comprises at least two Spülgutingn 13, 14 provided in the washing container 2.
- the Spülgutability 13, for example, an upper Spülgutability or an upper basket of the dishwasher 1 and the Spülgutability 14 may be a lower Spülgutage or a lower basket of the dishwasher 1.
- the dishwasher 1 may have a cutlery basket.
- the upper spray arm 9 is arranged between the Spülgutagen 13, 14.
- the Spülgutabilityn 13, 14 are grid-shaped and in particular basket-shaped.
- the washware receptacles 13, 14 can be displaced out of the washing container 2 in an extension direction A with the door 3 open and be moved back into the washing container 2 against the drawing-out direction A in an insertion direction E.
- the inlet pipe 1 1 is preferably attached to the Spülgutage 13. In order to enable a separation of the inlet pipe 1 1 of the feed pipe 4, a separable coupling is provided between the inlet pipe 1 1 and the feed pipe 4.
- Fig. 2 shows an embodiment of the upper spray arm 9 in a highly simplified sectional view.
- the spray arm 8 can be constructed identically to the spray arm 9. However, in the following, only the spray arm 9 is referred to.
- the spray arm 9 is preferably formed of two horizontally divided shells, in particular an upper shell and a lower shell, which are fluid-tightly connected to each other, in particular fused together, glued or welded.
- the upper shell forms an upper wall 15 and the lower shell forms a lower wall 16 of the spray arm 9.
- the spray arm 9 is rotatably mounted about an axis of rotation 17 on the inlet pipe 1 1.
- spray nozzles 10 are provided in the wall 15 .
- spray nozzles 10 may be provided in the wall 16 .
- the outlet nozzle 18 has a diameter di 8 .
- the diameter di 8 is preferably larger than a diameter of the spray nozzles 10. In particular, the diameter di 8 is greater than 3 mm.
- the diameter di 8 may be 4, 5, 6 or more mm.
- a valve 19 for selectively closing or opening the outlet nozzle 18 is provided.
- the valve 19 can be moved from an open position shown in FIG. 2 into a closed position with the aid of a rinsing fluid pressure of the rinsing fluid S.
- the valve 19 is spring-biased toward the open position, so that the valve 19 opens automatically when the rinsing pool pressure drops below a predetermined value. In particular, the valve 19 opens as soon as the pump no more Spülflotte S pumps into the feed tube 4.
- the valve 19 has a plate-shaped valve body 20 and a hinge 21.
- the hinge 21 may be a living hinge.
- FIG. 2 shows a force F-1 which applies the rinsing liquor S to the valve body 20.
- a force F 2 is shown in FIG. 2, resulting from the spring bias of the valve body 20 and counter to the force F- ⁇ acts.
- the rinsing fluid S always flows from the rotation axis 17, on which a bearing device for supporting the spray arm 9 on the inlet pipe 11 is provided in the direction of an end portion 22 of the spray arm 9.
- the valve body 20 is inclined in the open position arranged to the wall 16 of the spray arm 9.
- the valve body 20 may be positioned at an angle ⁇ obliquely to the wall 16.
- the angle ⁇ may for example have a value between 10 ° and 45 °, more preferably between 15 ° and 40 °, more preferably between 20 ° and 35 °.
- the plate-shaped valve body 20 in the direction of the end portion 22 of the spray arm 9. As a result, the wash liquor S, the valve 19 does not press.
- valve 19 is formed integrally with the spray arm 9.
- valve body 20 is formed integrally with the wall 16 of the spray arm 9.
- the hinge 21 is in this case preferably designed as a film hinge.
- the spray arm 9 and in particular the lower shell of the spray arm 9 can be formed integrally with the valve 19 in a plastic injection molding process.
- FIG. 4 shows a further embodiment of the spray arm 9 in a greatly simplified sectional view.
- the valve 19 is designed as an insert, which is encapsulated with material of the wall 16 in a plastic injection molding process.
- the valve body 20 may be formed of a different material than the wall 16.
- the valve body 20 may be made of a metal material.
- the valve body 20 may be a leaf spring.
- FIG. 5 shows a further embodiment of the spray arm 9 in a greatly simplified sectional view.
- the valve 19 and the spray arm 9 are multi-part.
- the valve 19 may have an annular base portion 23 which is snapped into the spray arm 9.
- the base portion 23 may be snapped into the outlet nozzle 18.
- the base portion 23 may be overmolded with material of the spray arm 9.
- FIG. 6 shows the embodiment of the spray arm 9 according to FIG. 5 in a schematic perspective view.
- FIG. 7 shows the valve 19 in a schematic perspective view.
- the valve 19 may for example be made of a resiliently deformable silicone material.
- 6 further shows a bearing device 24 for supporting the spray arm 9 on the inlet pipe 1 1.
- the base portion 23 of the valve 19 has an anti-rotation 25, which prevents rotation of the valve 19 in the outlet nozzle 18. This always ensures that the valve body 20 has an angle in the direction of the end portion 22.
- the base portion 23 has a circumferential groove 26 into which the wall 16 engages positively.
- Several such outlet nozzles 18 with valves 19 can be provided on the spray arm 9.
- the outlet nozzles 18 may for example be provided on both sides of the bearing device 24 or in the region of the end section 22.
- an improvement of the emptying of the spray arm 9 can be achieved as soon as it is depressurized.
- the carryover of the washing liquor S between a rinsing section of a rinsing process of the dishwasher 1 into the next can be avoided or at least reduced.
- the removal of dirty water from pre-rinsing in the cleaning or intermediate rinsing in the rinse can be prevented.
- the lower the carryover the better the cleaning performance of the dishwasher 1.
- the drying performance can be improved or the stain value can be reduced on the items to be washed. This is achieved by the fast and defined emptying process after rinsing.
- the outlet nozzle 18 preferably has a large diameter compared to the spray nozzles 10. As a result, the rinsing liquor in the spray arm 9 can flow off quickly and completely so that no carryover of the rinsing liquor into the subsequent rinse cycle takes place.
- valve 19 is pressurized closable, it is prevented that the Spippoflottendruck at the spray nozzles 10 decreases. As a result, the cleaning performance is maintained. Since the outlet nozzle 18 is closed during the spraying process, the engine speed and thus the energy consumption of the pump can be lowered while the spray pressure remains unchanged. Due to the closed outlet nozzle 18 during the spraying process, a smaller total nozzle opening cross-section is achieved. As a result, an energy saving can be achieved. Furthermore, a quick and complete emptying of the spray arm 9 is ensured if after the spraying the outlet nozzle 18 is opened with a large diameter. As a result, a better flushing performance can be achieved by the higher hydraulic Sprüharmabtrags antique.
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Washing And Drying Of Tableware (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015207582.6A DE102015207582B4 (de) | 2015-04-24 | 2015-04-24 | Sprüharm und Geschirrspülmaschine |
| PCT/EP2016/056843 WO2016169737A1 (de) | 2015-04-24 | 2016-03-30 | Sprüharm und geschirrspülmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3285632A1 true EP3285632A1 (de) | 2018-02-28 |
| EP3285632B1 EP3285632B1 (de) | 2022-07-27 |
Family
ID=55637380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16712048.4A Active EP3285632B1 (de) | 2015-04-24 | 2016-03-30 | Sprüharm und geschirrspülmaschine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10568488B2 (de) |
| EP (1) | EP3285632B1 (de) |
| CN (1) | CN107548290B (de) |
| DE (1) | DE102015207582B4 (de) |
| PL (1) | PL3285632T3 (de) |
| WO (1) | WO2016169737A1 (de) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016106966A1 (de) * | 2016-04-15 | 2017-10-19 | Miele & Cie. Kg | Geschirrspülmaschine |
| TR201618057A2 (tr) * | 2016-12-07 | 2018-06-21 | Arcelik As | Bi̇r bulaşik maki̇nasi |
| CN108451473B (zh) * | 2017-08-04 | 2023-09-22 | 施贵平 | 水槽式清洗机 |
| TR201716903A2 (tr) * | 2017-10-31 | 2019-05-21 | Arcelik As | Bi̇r yikama pervanesi̇ |
| DE102018206443B4 (de) * | 2018-04-26 | 2022-02-03 | BSH Hausgeräte GmbH | Haushalts-Geschirrspülmaschine |
| CN110693418A (zh) * | 2018-07-09 | 2020-01-17 | 青岛海尔洗碗机有限公司 | 一种洗碗机的喷淋装置 |
| CN110693424A (zh) * | 2018-07-09 | 2020-01-17 | 青岛海尔洗碗机有限公司 | 一种洗碗机的喷淋装置 |
| CN110693427A (zh) * | 2018-07-09 | 2020-01-17 | 青岛海尔洗碗机有限公司 | 一种洗碗机的喷淋装置 |
| CN110693411A (zh) * | 2018-07-09 | 2020-01-17 | 青岛海尔洗碗机有限公司 | 一种洗碗机的喷淋装置 |
| CN110693421A (zh) * | 2018-07-09 | 2020-01-17 | 青岛海尔洗碗机有限公司 | 一种洗碗机的喷淋装置 |
| CN110693425A (zh) * | 2018-07-09 | 2020-01-17 | 青岛海尔洗碗机有限公司 | 一种洗碗机的喷淋装置 |
| DE102020104642A1 (de) * | 2020-02-21 | 2021-08-26 | Illinois Tool Works Inc. | Wascharm |
| DE102020206486A1 (de) | 2020-05-25 | 2021-11-25 | BSH Hausgeräte GmbH | Haushaltsgerät |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3776465A (en) | 1972-08-17 | 1973-12-04 | Gen Electric | Liquid spray device |
| DE3534755A1 (de) | 1985-09-28 | 1987-04-02 | Licentia Gmbh | Vorrichtung zur entleerung eines in geschirrspuelern eingesetzten sprueharmes |
| DE8609946U1 (de) | 1986-04-11 | 1987-08-13 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Geschirrspülmaschine mit einem Sprüharm |
| DE3631555A1 (de) | 1986-09-17 | 1988-03-31 | Licentia Gmbh | Geschirrspuelmaschine mit einem sprueharm |
| KR101283781B1 (ko) | 2006-09-27 | 2013-07-08 | 엘지전자 주식회사 | 식기 세척기 |
| CN201198592Y (zh) | 2008-01-07 | 2009-02-25 | 徐加平 | 一种防臭地漏 |
| KR101964646B1 (ko) * | 2012-09-25 | 2019-04-02 | 엘지전자 주식회사 | 식기세척기 |
| CN102940475B (zh) * | 2012-09-29 | 2016-04-27 | 宁波方太厨具有限公司 | 一种清洗机 |
| DE102014100002A1 (de) * | 2014-01-02 | 2015-07-02 | Miele & Cie. Kg | Geschirrspülautomat |
-
2015
- 2015-04-24 DE DE102015207582.6A patent/DE102015207582B4/de active Active
-
2016
- 2016-03-30 US US15/564,763 patent/US10568488B2/en active Active
- 2016-03-30 PL PL16712048.4T patent/PL3285632T3/pl unknown
- 2016-03-30 WO PCT/EP2016/056843 patent/WO2016169737A1/de not_active Ceased
- 2016-03-30 EP EP16712048.4A patent/EP3285632B1/de active Active
- 2016-03-30 CN CN201680023419.6A patent/CN107548290B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3285632B1 (de) | 2022-07-27 |
| DE102015207582A1 (de) | 2016-10-27 |
| US20180110394A1 (en) | 2018-04-26 |
| CN107548290A (zh) | 2018-01-05 |
| PL3285632T3 (pl) | 2022-10-24 |
| WO2016169737A1 (de) | 2016-10-27 |
| US10568488B2 (en) | 2020-02-25 |
| DE102015207582B4 (de) | 2024-07-25 |
| CN107548290B (zh) | 2020-02-07 |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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