EP3515275A1 - Haushalts-geschirrspülmaschine - Google Patents
Haushalts-geschirrspülmaschineInfo
- Publication number
- EP3515275A1 EP3515275A1 EP17765413.4A EP17765413A EP3515275A1 EP 3515275 A1 EP3515275 A1 EP 3515275A1 EP 17765413 A EP17765413 A EP 17765413A EP 3515275 A1 EP3515275 A1 EP 3515275A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spray arm
- spray
- magnetic field
- arm
- machine according
- 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
- A47L15/4278—Nozzles
- A47L15/4282—Arrangements to change or modify spray pattern or direction
Definitions
- the present invention relates to a household dishwasher.
- household dishwashers to be cleaned items usually acted upon by means of rotatable spray arms with rinse.
- Such spray arms comprise a plurality of Sprüharmdüsen through which the wash liquor emerges. The recoil of the leaving rinsing liquor sets the spray arm in rotation. Since the Sprüharmdüsen move on a circular path, one of this circular path adapted round crockery basket with regard to the application of wash ware is ideal.
- the basic form of most household dishwashers extends in length and width dimension, there may also be areas in a polygonal dish rack, which can not be optimally treated with rinsing water. In order to minimize the spray shadow, several spray arms can be used instead of one spray arm.
- WO 2004/023968 A2 describes a dishwasher with a first spray arm and a second spray arm. The spray arms are arranged in different Sprüharmebenen, wherein the axes of rotation of the spray arms are tilted to each other.
- EP 0 559 466 B1 describes a dishwasher with a plurality of spray arms, which are arranged in different spray arms, so that the spray arms are placed one above the other.
- an object of the present invention is to provide an improved household dishwasher.
- a domestic dishwasher with a first spray arm which has a first spray, a second spray arm, the one with the first Spraying circle overlapping second spray circuit, and a synchronizer, which is adapted to adjust a rotational speed of the first spray arm to a rotational speed of the second spray arm or vice versa proposed.
- the synchronizer comprises a first magnetic field associated with the first spray arm and a second magnetic field associated with the second spray arm, wherein the first magnetic field and the second magnetic field have the same polarization so that the first magnetic field and the second magnetic field repel each other during operation of the household dishwasher to prevent contact of the first spray arm and the second spray arm with a rotational movement thereof.
- the first magnetic field and the second magnetic field are each formed as a north pole or a south pole.
- the synchronizer allows synchronization of the speed of the first spray arm and the speed of the second spray arm without requiring mechanical coupling of the spray arms.
- the first magnetic field and the second magnetic field are respectively generated by means of a magnetic element or a magnetizable, in particular ferromagnetic, material.
- the magnetic field and / or the magnetizable material may be part of the synchronizer.
- the synchronizer may comprise a plurality of magnetic fields.
- the spray circles overlap in particular in an overlapping area. In the overlapping area, the items to be washed are subjected to washing liquor particularly intensively, which results in a particularly good cleaning effect in the overlapping area.
- the first spray arm and the second spray arm are arranged in a common spray arm level.
- the spraying arm level may, for example, run centrally through the two spray arms and divide these into an upper shell and a lower shell, respectively.
- the Sprüharmbene be spanned by Sprüharmdüsen the spray arms. Characterized in that the first spray arm and the second spray arm are arranged in a common Sprüharmbene, they engage in a rotational movement of the same in one another. This results in a height direction, a particularly small footprint.
- the first spray arm and / or the second spray arm are at least partially made of a magnetizable material.
- the magnetizable material is a ferromagnetic material.
- the first spray arm and / or the second spray arm are at least partially made of metal or a magnetizable plastic material.
- the spray arms each have an upper shell and a lower shell, which are connected to each other by means of injection-molded connecting elements.
- the connecting elements can be made of the magnetizable plastic material. In this way, a saving of material can be achieved by the economical use of the magnetizable plastic material.
- the spray arms may be made, for example, at least in sections from a magnetizable metal sheet.
- the first spray arm and / or the second spray arm each have a magnetic element, in particular a permanent magnet element.
- the magnetic element may for example be glued or clipped to the respective spray arm. Alternatively, the magnetic element may be disposed within the material of the respective spray arm.
- the magnetic element is encapsulated with a plastic material.
- each spray arm is assigned in each case two magnetic fields with different polarization.
- Each spray arm is preferably associated with four magnetic fields, with two magnetic fields each having the same polarization. This means that there are two magnetic fields as the south pole and two magnetic fields as the north pole.
- each spray arm has a first spray arm section, a second spray arm section and an axis of rotation arranged centrally between the spray arm sections, wherein each spray arm section is assigned two magnetic fields with different polarization.
- the number of Sprüharmabitese is arbitrary. It is also possible to provide three or four spray arm sections. With the help of the axis of rotation of the respective spray arm is rotatably mounted on a washing container of the household dishwasher. Rinse liquor can also be supplied to the respective spray arm via the rotation axis.
- the domestic dishwasher comprises a third to nth spray arm, which has a third to nth spray circle overlapping with the first spray circle or the second spray circle, wherein the third through nth spray arms have a third through nth spray arms.
- Magnetic field is associated with the magnetic field, wherein the first magnetic field or the second magnetic field and the third to n-th magnetic field have the same polarization, so that the first magnetic field or the second magnetic field and the third to n-th magnetic field in the operation of the domestic dishwasher repel each other to prevent contact of the first spray arm or the second spray arm and the third to n-th spray arm during a rotational movement thereof.
- the number of spray arms is arbitrary. For example, six spray arms are provided. n is preferably greater than four and integer.
- the spray arms may have spray circles with different diameters.
- a third to sixth spray arm each have a spray circuit whose diameter is smaller than a diameter of a respective spray circuit of the first spray arm and the second spray arm.
- the third to sixth spray arm can then be arranged in each case in a corner of a Spülguta the household dishwasher. In this way, a particularly uniform loading of the items to be washed with rinse liquor can be achieved.
- the domestic dishwasher comprises a washing container on which the spray arms are rotatably mounted.
- the spray arms can also be rotatably mounted on Spülgutfactn the household dishwasher.
- the household dishwasher preferably comprises a plurality of items to be washed, which are placed one above the other in the washing container.
- Each Spülgutage may be associated with a plurality of spray arms, which are each arranged above or below the respective Spülguta.
- Other possible implementations of the domestic dishwasher include not explicitly mentioned combinations of features described above or below with regard to the exemplary embodiments. The skilled person will also add individual aspects as improvements or additions to the respective basic form of the domestic dishwasher.
- FIG. 1 shows a schematic perspective view of an embodiment of a domestic dishwasher
- FIG. 2 shows a schematic plan view of a washware receptacle for the household dishwasher according to FIG. 1
- FIG. shows a schematic view of several spray arms for the household dishwasher of FIG. 1;
- FIG. 4 shows a schematic sectional view of a spray arm for the domestic dishwasher according to FIG. 3
- FIG. and FIG. 5 shows a further schematic sectional view of a spray arm for the domestic dishwasher according to FIG. 1.
- FIG. 1 shows a schematic perspective view of an embodiment of a domestic dishwasher 1.
- the household dishwasher 1 comprises a washing container 2, which is closed by a door 3, in particular waterproof.
- a sealing device can be provided between the door 3 and the washing container 2.
- the washing container 2 is preferably cuboid.
- the washing container 2 may be arranged in a housing of the household dishwasher 1.
- the rinsing container 2 and the door 3 can form a rinsing chamber 4 for rinsing dishes.
- the door 3 is shown in Fig. 1 in its open position. By pivoting about a provided at a lower end of the door 3 pivot axis 5, the door 3 can be closed or opened. With the help of the door 3, a charging opening 6 of the washing container 2 can be closed or opened.
- the washing compartment 2 has a base 7, a ceiling 8 arranged opposite the base 7, a rear wall 9 arranged opposite the closed door 3 and two side walls 10, 11 located opposite one another.
- the bottom 7, the ceiling 8, the rear wall 9 and the side walls 10, 1 1 can be made for example of a stainless steel sheet. Alternatively, for example, the bottom 7 may be made of a plastic material.
- the household dishwasher 1 further comprises at least one Spülgutability 12 to 14.
- Spülgutagen 12 to 14 may be provided, wherein a first Spülgutage 12 a lower dish rack or lower basket, a second Spülgutability 13 an upper dish basket or upper basket and a third Spülgutage 14 may be a cutlery drawer.
- the washware receptacles 12 to 14 are arranged one above the other in the washing container 2.
- Each Spülgutability 12 to 14 is either in the Spül actuallyer 2 in orromeverlagerbar out of this.
- each Spülgutage 12 to 14 in an insertion direction E hineinschiebbar in the washing container 2 and opposite to the insertion direction E in a pull-out direction A from the washing compartment 2 pulled out.
- FIG. 2 shows a schematic plan view of the washware receptacle 14.
- the household dishwasher 1 comprises a first spray arm 15, which is rotatably mounted on the washing compartment 2, in particular on the ceiling 8.
- the first spray arm 15 comprises a first Sprüharmabêt 16, a second Sprüharmabêt 17 and a centrally disposed between the Sprüharmabitesen 16, 17 axis of rotation 18.
- the first spray arm 15 rinsing liquor for cleaning items to be supplied.
- the second spray arm 20 is rotatably mounted on the washing compartment 2.
- the first spray arm 15 has a first spray circle 19, the center of which is the axis of rotation 18.
- the household dishwasher 1 further comprises a second spray arm 20 which, like the first spray arm 15, has a first spray arm section 21, a second spray arm section 22 and a rotation axis 23 arranged centrally between the spray arm sections 21, 22.
- a second spray arm 20 comprises a second spray circle 24, the center of which is the axis of rotation 23.
- the first spraying circuit 19 and the second spraying circuit 24 overlap one another in an overlapping region 25 hatched in FIG. 2. That is to say, during operation of the household dishwasher 1, in which the spraying arms 15, 20 rotate about their respective axes of rotation 18, 23, engages the first spray arm 15 in the second spray arm 20 or vice versa.
- the first spray arm 15 and the second spray arm 20 are arranged in a common spray arm level SE.
- the spray arm level SE can in each case be arranged above one of the washware receptacles 12 to 14.
- the spray arm level SE can be arranged between the first washware receptacle 12 and the second washware receptacle 13, between the second washware receptacle 13 and the third washware receptacle 14 or above the third washware receptacle 14.
- the Sprüharmbene SE can also be arranged below the respective Spülgutage 12 to 14. Everyone can do it too Spülgutability 12 to 14 its own Sprüharmbene SE be associated with the respective spray arms 12, 20.
- the spray circles 19, 24 may have the same diameter or different diameters.
- the domestic dishwasher 1 can furthermore have a third spray arm 26 with a first spray arm section 27, a second spray arm section 28 and an axis of rotation 29 arranged between the spray arm sections 27, 28.
- a third spray arm 26 with a first spray arm section 27, a second spray arm section 28 and an axis of rotation 29 arranged between the spray arm sections 27, 28.
- washing liquor can be supplied to the third spray arm.
- the third spray arm 26 is rotatably mounted on the washing container 2 by means of the rotation axis 29.
- the third spray arm 26 comprises a third spray circle 30, the diameter of which is preferably smaller than the diameter of the spray circles 19, 24.
- the third spray circle 30 overlaps the second spray circle 24 in an overlap region 31 which is hatched in FIG is.
- the household dishwasher 1 may comprise a fourth spray arm 32 with a fourth spray circle 33, wherein the fourth spray circle 33 overlaps with the first spray circle 19 in an overlap region 34 hatched in FIG.
- the fourth spray arm 32 is preferably of identical construction as the third spray arm 26.
- a fifth spray arm 35 may be provided with a fifth spray circle 36 which intersects with the first spray circle 19 in an overlap region 37 shown hatched.
- a sixth spray arm 38 comprises a sixth spray circle 39, which intersects with the second spray circle 24 in an overlap region 40 shown hatched.
- the spray arms 26, 32, 35, 38 are optional. As FIG. 2 shows, the spray arms 26, 32, 35, 38 can each be placed in a corner of the washware receptacle 14.
- the spray circuits 19, 24, 30, 33, 36, 39 thus cover almost the entire Spülgutage 14, wherein in the overlapping areas 25, 31, 34, 37, 40 a particularly intensive loading of the items to be washed with rinse liquor is guaranteed.
- the number of spray arms 15, 20, 26, 32, 35, 38 is arbitrary.
- the household dishwasher 1 has at least the first spray arm 15 and the second spray arm 20.
- 3 shows the first spray arm 15 and the second spray arm 20 in a plan view.
- the functionality of the spray arms 26, 32, 35, 38 corresponds to the functionality of the spray arms 15, 20.
- only the first spray arm 15 and the second spray arm 20 will be discussed below.
- the household dishwasher 1 comprises a synchronizing device 41, which is set up to adapt a rotational speed of the first spray arm 15 to a rotational speed of the second spray arm 20 or vice versa.
- the spray arms 15, 20 are mechanically decoupled from each other. That is, there is no mechanical or electromechanical connection between the first spray arm 15 and the second spray arm 20 in the form of a transmission, belt, synchronized electric motors or the like.
- the synchronizing device 41 comprises a first magnetic field 42 assigned to the first spray arm 15 and a second magnetic field 43 assigned to the second spray arm 20.
- the first magnetic field 42 and the second magnetic field 43 have the same polarization.
- the first magnetic field 42 and the second magnetic field 43 are formed as north pole N, so that the first magnetic field 42 and the second magnetic field 43 repel each other during operation of the household dishwasher 1.
- a contact of the first spray arm 15 and the second spray arm 20 is prevented during a rotational movement thereof.
- each Sprüharmabites 16, 17, 21, 22 each have two magnetic fields 42, 44 and 43, 45 assigned. In this case, the two magnetic fields 42, 44 and 43, 44 of each Sprüharmabitess 16, 17, 21, 22 different polarizations.
- the magnetic fields 44, 45 are formed as south poles S.
- the first spray arm 15 and / or the second spray arm 20 are at least partially made of a magnetizable material.
- the spray arms 15, 20 may be made of metal or at least partially made of metal.
- the spray arms 15, 20 may be made at least partially of a magnetizable plastic material.
- a two-component injection molding process can be used.
- the spray arms 15, 20, as shown in FIG. 4 each have an upper shell 46 and a lower shell 47, which are subsequently attached by means of two injection-molded connecting elements 48, 49 are interconnected.
- the connecting elements 48, 49 may be made of the magnetizable plastic material, wherein, for example, the connecting element 48 forms a north pole N and the connecting element 49 forms a south pole S.
- the spray arm level SE can run centrally through the spray arms 15, 20.
- the connecting elements 48, 49 may be part of the synchronizing device 41.
- the spray arms 15, 20, as shown in FIG. 5, each have a magnetic element 50, in particular a permanent magnet element.
- the magnetic element 50 may be encapsulated with a plastic material 51 in a plastic injection molding process.
- the magnetic element 50 may be part of the synchronizer 41.
- the spray arms 15, 20 comprise Sprüharmdüsen through which the wash liquor emerges into the washing chamber 4.
- the spray arms 15, 20, 26, 32, 35, 38 are set in rotation.
- the synchronizer 41 is ensured by the repulsion of the magnetic fields 42 to 45 that the spray arms 15, 20, 26, 32, 35, 38 do not touch and a synchronization of the rotational speeds of the spray arms 15, 20, 26, 32, 35, 38 takes place. That is, the spray arms 15, 20, 26, 32, 35, 38 are each accelerated or decelerated depending on each other.
- Spray arms 15, 20, 26, 32, 35, 38 can be easily removed for cleaning, without having to consider a transmission or other coupling means. There is no correct positioning of the spray arms 15, 20, 26, 32, 35, 38 required. All spray arms 15, 20, 26, 32, 35, 38 can be used in a common spray level SE, since they control each other. Since due to the synchronization device 41 corner nozzles or drive nozzles of the spray arms 15, 20, 26, 32, 35, 38 no longer have to be set at an angle, meets the rinse water flat on the washing container 2, whereby a lower noise is achieved.
- the overlapping areas 25, 31, 34, 37, 40 are particularly intensively charged with rinsing liquor and can be highlighted in color as intensive zones for the user.
- the nozzle pressure can be reduced, since the nozzle spray angle of the load can be better adjusted.
- the items to be washed, in particular cups, can be made steep, since the reachability of the items to be washed is improved by the larger spray circles 19, 24.
- the steeper cup position leaves less residual water in the bottom of the cup, which means less water has to be evaporated. This leads to energy savings.
Landscapes
- Washing And Drying Of Tableware (AREA)
- Cleaning By Liquid Or Steam (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL17765413T PL3515275T3 (pl) | 2016-09-19 | 2017-09-08 | Zmywarka do naczyń gospodarstwa domowego |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016217912.8A DE102016217912B3 (de) | 2016-09-19 | 2016-09-19 | Haushalts-Geschirrspülmaschine |
| PCT/EP2017/072553 WO2018050548A1 (de) | 2016-09-19 | 2017-09-08 | Haushalts-geschirrspülmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3515275A1 true EP3515275A1 (de) | 2019-07-31 |
| EP3515275B1 EP3515275B1 (de) | 2020-07-15 |
Family
ID=59858716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17765413.4A Active EP3515275B1 (de) | 2016-09-19 | 2017-09-08 | Haushalts-geschirrspülmaschine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10898052B2 (de) |
| EP (1) | EP3515275B1 (de) |
| CN (1) | CN109715029B (de) |
| DE (1) | DE102016217912B3 (de) |
| PL (1) | PL3515275T3 (de) |
| WO (1) | WO2018050548A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112545409B (zh) * | 2020-11-19 | 2022-07-15 | 佛山市顺德区美的洗涤电器制造有限公司 | 用于洗碗机的控制装置和洗碗机 |
| CH719239A1 (de) * | 2021-12-10 | 2023-06-15 | Gehrig Group Ag | Reinigungsvorrichtung mit einer Wasch- und Spülarm-Rotationsüberwachung. |
| EP4491088B1 (de) * | 2023-07-10 | 2026-02-25 | Miele & Cie. KG | Geschirrspülmaschine |
| BE1031789B1 (de) * | 2023-07-10 | 2025-02-11 | Miele & Cie | Geschirrspülmaschine |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2960990A (en) * | 1956-01-26 | 1960-11-22 | Whirlpool Co | One level dishwasher |
| DE69304740T2 (de) | 1992-03-06 | 1997-04-03 | Nippon Senjoki Co Ltd | Geschirrspülmaschine |
| US5464482A (en) | 1994-11-07 | 1995-11-07 | Maytag Corporation | Washarm assembly for dishwasher |
| IT1275156B (it) * | 1995-02-15 | 1997-07-30 | Smeg Spa | Gruppo irroratore girevole per lavastoviglie dotato di moto alternato orizzontale |
| DE19824824C2 (de) * | 1998-06-04 | 2002-11-14 | Aeg Hausgeraete Gmbh | Geschirrspülmaschine mit einem rotierbaren Sprüharm |
| JP2000107116A (ja) * | 1998-10-09 | 2000-04-18 | Matsushita Electric Ind Co Ltd | 食器洗い機 |
| ITPN20020064A1 (it) | 2002-08-30 | 2004-02-29 | Electrolux Home Products Corporatio N N V | Lavastoviglie, in particolare per cucine componibili. |
| DE102005033110B4 (de) * | 2005-07-15 | 2011-05-19 | Miele & Cie. Kg | Spülmaschine |
| DE102006007329B4 (de) * | 2006-02-16 | 2018-02-15 | BSH Hausgeräte GmbH | Einrichtung zur Überwachung des Betriebsablaufs einer Geschirrspülmaschine |
| DE102009042867A1 (de) * | 2009-09-24 | 2011-04-07 | Winterhalter Gastronom Gmbh | Geschirrspülmaschine |
| DE102010001654A1 (de) | 2010-02-08 | 2011-08-11 | BSH Bosch und Siemens Hausgeräte GmbH, 81739 | Geschirrspülmaschine mit zumindest einem Sprüharm |
| DE102010032005A1 (de) * | 2010-07-22 | 2012-01-26 | Michael Heidan | Sprühvorrichtung |
| US20140053873A1 (en) * | 2012-08-21 | 2014-02-27 | Michael T. Watson | Warewash machine system and method for detecting clogged wash arm |
| CN203290861U (zh) * | 2013-05-27 | 2013-11-20 | 美的集团股份有限公司 | 洗碗机及其喷臂装置 |
-
2016
- 2016-09-19 DE DE102016217912.8A patent/DE102016217912B3/de not_active Withdrawn - After Issue
-
2017
- 2017-09-08 US US16/323,533 patent/US10898052B2/en active Active
- 2017-09-08 PL PL17765413T patent/PL3515275T3/pl unknown
- 2017-09-08 EP EP17765413.4A patent/EP3515275B1/de active Active
- 2017-09-08 CN CN201780057345.2A patent/CN109715029B/zh active Active
- 2017-09-08 WO PCT/EP2017/072553 patent/WO2018050548A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN109715029A (zh) | 2019-05-03 |
| US20190159653A1 (en) | 2019-05-30 |
| EP3515275B1 (de) | 2020-07-15 |
| CN109715029B (zh) | 2021-08-10 |
| PL3515275T3 (pl) | 2021-01-25 |
| US10898052B2 (en) | 2021-01-26 |
| DE102016217912B3 (de) | 2018-02-01 |
| WO2018050548A1 (de) | 2018-03-22 |
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