EP2601877A2 - Lave-vaisselle avec inversion automatique du sens de rotation du bras pulvérisateur - Google Patents
Lave-vaisselle avec inversion automatique du sens de rotation du bras pulvérisateur Download PDFInfo
- Publication number
- EP2601877A2 EP2601877A2 EP12401244.4A EP12401244A EP2601877A2 EP 2601877 A2 EP2601877 A2 EP 2601877A2 EP 12401244 A EP12401244 A EP 12401244A EP 2601877 A2 EP2601877 A2 EP 2601877A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- spray arm
- drive
- distributor
- spray
- nozzles
- 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
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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
- A47L15/42—Details
- A47L15/4278—Nozzles
- A47L15/4282—Arrangements to change or modify spray pattern or direction
Definitions
- the invention relates to a dishwasher having a washing compartment and a spray system provided in the washing compartment, which has a rotatably mounted spray arm, wherein the spray arm drive nozzles, which drive nozzles serve a rotary drive of the spray arm in the left direction on the one hand and in the right direction on the other.
- Dishwashers of the type mentioned are known from the prior art per se. A separate documentary proof is therefore not required at this point.
- Generic dishwashers have a Spülbottich, which in turn provides a Spülraum.
- the washing compartment is accessible via an opening in the washing tub, which opening can be closed in a fluid-tight manner by means of a door pivotably arranged on the washing tub.
- the washing compartment of the dishwasher serves to receive items to be cleaned. This is applied as part of a designated Spülprogrammablaufs by means of rinsing liquid, the so-called wash liquor.
- a dishwashing machine has a spray system provided in the washing compartment for loading items to be cleaned with washing liquor.
- a spray system typically has at least one rotatably mounted spray arm.
- several such spray arms are provided, and depending on the design of the dishwasher two or three spray arms are common practice.
- Each spray arm is connected to a supply line for rinsing liquor.
- rinsing liquor passes through this supply line to the spray arm, via which the rinsing liquor is discharged in the direction of the items to be cleaned.
- the rinsing liquor emitted by the spray arm collects in the washing compartment and is guided in an open flow circuit for a renewed spraying of the dishes.
- a circulation pump is used, which continuously circulates the rinsing liquor during a proper program implementation.
- not all the spray arms are used at the same time in a designated program sequence. It is rather a feed to different sections of the program different spray arms with rinsing liquor instead, for the purpose of water saving preferably not more than two spray arms are operated simultaneously with rinsing water.
- a water switch cooperating with the circulation pump is regularly used, wherein a feeding of the spray arms takes place as a function of the position of the water distributor.
- the DE 3816408 A1 discloses a dishwasher in which drive nozzles are provided for a rotary drive of the spray arm in the left direction and drive nozzles for a rotary drive of the spray arm in the right direction.
- "Left direction” means a drive of the spray arm in the counterclockwise direction and "right direction” in the opposite direction, ie in the clockwise direction.
- the respective drive nozzles are connected to two separate channels in the spray arm, which are supplied via two separate supply lines with rinsing liquid.
- the supply lines are connected to separate output connections of the water separator.
- the DE 103 55 343 B3 discloses a dishwashing machine in which a spray arm has two groups of nozzles. These are in fluid communication with a distribution chamber provided by the spray arm. When used as intended, rinse liquor flows into the distribution chamber of the spray arm, from where one or the other nozzle group is operated with rinsing liquor. The feeding of the nozzle groups with rinsing liquor takes place purely by chance over a ball present in the distribution chamber. When loading the spray arm with rinsing water, this ball is spent independently of control and completely randomly in a position in which either one nozzle group or the other nozzle group is released or locked. A targeted feeding of one or the other nozzle group with rinsing liquor is not possible.
- the object of the invention to further develop a dishwasher of the type mentioned in that an improved coverage of the washing compartment with rinse liquor is achieved with the aim of improved Spülgutgraphy at the same time simplified, inexpensive and robust construction.
- the invention proposes a dishwasher of the type mentioned, which is characterized in that the spray arm has a distribution chamber, with which the drive nozzles are fluidically connected or can be connected, and a rotatable within the distribution chamber arranged distributor which alternately releases either the drive nozzles for a rotary drive of the spray arm in the left direction or the drive nozzles for a rotary drive of the spray arm in the right direction.
- the dishwasher according to the invention has a spray arm, which is equipped with a distribution chamber and a distributor for rinsing liquor.
- the distribution chamber is thus arranged within the spray arm and is supplied with rinsing liquid via only one supply line.
- the distributor is rotatably disposed within the distribution chamber of the spray arm. Depending on its position, it alternately releases either the drive nozzles for a rotary drive of the spray arm in the left direction or the drive nozzles for a rotary drive of the spray arm in the right direction.
- it comes with every new loading of the spray arm with rinsing water to a reversal of direction.
- the inventive design provides an improvement here, as a result of a reversal of the direction of rotation of the spray arm with respect to the items to be cleaned a beam direction change, a beam shape change and a change in the Beam impact angle causes, so that different spray jet characteristics are achieved. As a result, a better cleaning result can be achieved.
- the distribution device according to the invention according to a further feature of the invention has a base body. This carries closure means, by means of which depending on the relative rotational position of the distributor within the distribution chamber release of the drive nozzles is formed, either the drive nozzles for a rotary drive of the spray arm in the left direction or the drive nozzles are released for a rotary drive of the spray arm in the right direction.
- a spray arm preferably has two wings which are each formed starting from the distribution chamber of the spray arm.
- Each wing has two channels and each of these channels is connected to at least one drive nozzle.
- the channels of the spray arm fluidly connected to the drive nozzles can be closed.
- the closure means are plate-shaped and formed corresponding to the channel inlet openings. If, in the intended application, a channel inlet opening is closed by means of a plate-shaped closure means, then no rinse liquor can flow into this channel, with which the drive nozzle belonging to this channel is not charged with rinsing liquor.
- the distribution device is arranged according to a further feature of the invention with the interposition of a compression spring within the distribution chamber. It is held under spring bias in the direction of its axis of rotation due to this spring. In this case, the spring counteracts the direction of inflow of a washing liquor flowing into the spray arm.
- the spring is dimensioned with regard to its spring force so that the distributor is depressed against the spring force when flushing water flowing into the spray arm.
- the distribution device In the case of a lack of rinsing liquor feed, the distribution device, on the other hand, is held in its extended normal position following the spring action of the compression spring.
- the distribution device and the distribution chamber have according to a further feature of the invention each have a slide track, wherein the two slide tracks are in operative connection with each other.
- the operative connection is designed such that a stepwise rotation of the distributor relative to the distribution chamber is effected.
- About the slide tracks an automatic rotational movement of the distributor is achieved for the purpose of reversing the direction of rotation. The twisting movement takes place automatically during a relative movement of distributor and distribution chamber, especially when they move towards each other.
- the slide tracks have mutually facing inclined surfaces over which, in the case of engagement, a rotational movement of the distributor is achieved relative to the distributor chamber and thus also relative to the spray arm.
- the slide tracks cause a gradual rotation of the distributor relative to the distribution chamber, and preferably by 45 °.
- the main body of the distributor has the feed side over a baffle section. Upon impingement of the spray arm with rinse liquor, the rinse liquor entering the spray arm encounters this baffle section. There is an on all sides preferably uniform discharge of the rinsing liquor, so that a uniform loading of the shared channels of the spray arm can be done with rinsing liquor.
- each spray arm of the dishwasher can be designed in accordance with the invention.
- the construction according to the invention causes a change in the direction of rotation with each new loading of the spray arm with rinsing. This is achieved by a recorded from the distribution chamber of the spray arm distribution device, which rotates with each new loading of the spray arm with rinsing fluid by a predetermined angle of rotation, preferably 45 °, which in each case an activation of the spray provided by the spray drive either for a left-hand rotation of the spray arm or a clockwise rotation the spray arm takes place.
- the invention discloses a particularly simple and inexpensive way to achieve an automatic reversal of the direction of the spray arm.
- the direction of rotation reversal is effected directly by the pressure of the rinsing liquor and is thus adjustable with little effort and without further interference-prone aids in a simple manner by controlling the Spülflottenstroms.
- a dishwashing machine not shown in the figures has a washing compartment and a spraying system provided in the washing compartment.
- the spray system is used for the loading of items to be cleaned with rinsing liquid, also called rinsing liquor.
- the spray system has preferably in individual layers one above the other arranged spray arms, which are rotatably mounted.
- a spray arm 1 is exemplary in FIG. 1 shown.
- the spray arm 1 has a distribution chamber 14. This distribution chamber 14 is connected to a supply line for rinsing liquor. In the proper charging case of the spray arm 1 with rinsing fluid this passes through the associated supply line into the distribution chamber 14 of the spray arm. 1
- the spray arm 1 provides two wings 2 and 3, each extending from the distribution chamber 14 opposite each other. Each of the two wings 2 and 3 is divided and has two channels, the wing 2 via the channels 12 and 13 and the wing 3 via the channels 10 and 11 has.
- Each of the channels 10, 11, 12 and 13 is fluidly connected to a respective end of the associated wing 2 and 3 formed drive nozzle 4 and 5 respectively.
- channels 10 and 13 each with a drive nozzle 5 and the channels 11 and 12 each with a drive nozzle 4 in fluid communication.
- the channels 10 to 13 are also connected to spray nozzles 8, is discharged through the intended use case rinse liquor in the direction of to be cleaned items.
- the drive nozzles 4 and 5 are used in the case of loading a rotary drive of the spray arm 1 about its axis of rotation 17 either in the left direction according to arrow 36, d. H. counterclockwise or in the opposite direction, d. H. in the right direction as indicated by arrow 37 in a clockwise direction.
- a rotational movement of the spray arm 1 in the left direction is achieved in that the drive nozzles 4 are charged in the direction of arrow 6 with rinsing, while the fluidically connected to the drive nozzles 5 channels 10 and 13 are kept closed for rinsing.
- the drive nozzles 5 fluidically connected to the channels 10 and 13 are to be unlocked, with simultaneous closing circuit of the channels 11 and 12, which are fluidically connected to the drive nozzles 4.
- distributing device 15 serves the structure and operation of the distributor 15 results in particular from the FIGS. 2 to 5 ,
- the distribution device 15 is designed to be rotatable about the axis of rotation 17 relative to the distribution chamber 14. It has a plate-shaped base body 18, the feed side a baffle section 19 for intended use in the direction of arrow 21 in the distribution chamber 14 inflowing rinse.
- the distributor 15 also has closure means 16, which are formed in the embodiment shown as a circular segment-shaped plate sections, which are distributed evenly around the axis of rotation 17 around supported by the base body 18, as can be seen in particular from the illustration FIGS. 1 . 6 and 7 results.
- the orientation of the closure means 16 is chosen so that, with simultaneous opening, ie release of the channels 10 and 13, the two other channels 11 and 12 are closed. In an opening or release of the channels 11 and 12, however, the other two channels 10 and 13 are closed.
- This factual context results from a synopsis of the FIGS. 6 and 7 , It puts FIG. 6 corresponding to the arrow 30 the clockwise and FIG. 7 in correspondence of the arrow 31, the left rotation of the spray arm 1.
- the distribution device 15 having the closure means 16 is to be rotated about the rotation axis 17. In this case, a rotational movement takes place automatically with the beginning of each new loading of the spray arm 1 with rinsing liquor.
- the distributor 15 has a slide track 23. This provides pin-shaped projections 24 which are equipped with an oblique surface 32 at the ends.
- the bottom 26 of the distribution chamber 14 is also equipped with a slide track 27.
- This has webs 28, the Verteil originateds person have an inclined surface 33.
- the slide tracks 23 and 27 and their respective projections 24 and 28 respectively supported oblique surfaces 32 and 33 act together in the intended use case.
- the closure means 16 of the distributor 15 have a reference to the plane of the drawing FIG. 2 upper end edge 34.
- This upper end edge 34 is formed by a provided from the wall of the distribution chamber 14 annular edge 35 opposite.
- the end edge 34 and the annular edge 35 carry a correspondingly formed to each other toothing or comparable contour.
- the distributor 15 is arranged with the interposition of a compression spring 20 within the distribution chamber 14.
- the deflected normal position of the distributor 15 is in FIG. 2 shown. In this normal position, the slide tracks 23 and 27 are disengaged.
- FIG. 3 lets the distributor 15 recognize in a spring-loaded normal position.
- the distributor 15 is in such a relative position to the distribution chamber 14 that the channels 12 and 11 are closed by the corresponding closure means 16.
- the two other channels 10 and 13 are meanwhile open.
- the distributor device 15 returns to the normal position, ie with reference to the plane of the drawing, according to the spring force caused by the spring 20 FIGS. 2 to 5 back up.
- the toothing provided by the closing edges 34 of the closure means 16 engages in the toothing provided by the opposing annular edge 35, as a result of which a subsequent rotational movement of the distributor 15 occurs relative to the distribution chamber 14, namely by such an angle that the Sloping surfaces 32 and 33 are at least partially brought into coincidence, so that when a renewed introduction of wash liquor in the spray arm 1 at a lowering of the distributor 15, an operative connection between the two inclined surfaces 32 and 33 can come about, as described above with reference to FIG.
- the geometric dimensions of the slide tracks 23 and 27 are chosen so that the distance 9 between the center line of an extension 24 and the center line of a release 25 is dimensioned such that in the course of a proper loading of the spray arm with rinsing a rotational movement of the distributor 15 to preferably 45 ° is reached.
Landscapes
- Washing And Drying Of Tableware (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011056065A DE102011056065A1 (de) | 2011-12-06 | 2011-12-06 | Geschirrspülmaschine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP2601877A2 true EP2601877A2 (fr) | 2013-06-12 |
| EP2601877A3 EP2601877A3 (fr) | 2016-03-02 |
| EP2601877B1 EP2601877B1 (fr) | 2018-02-21 |
Family
ID=47504755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12401244.4A Active EP2601877B1 (fr) | 2011-12-06 | 2012-12-06 | Lave-vaisselle avec inversion automatique du sens de rotation du bras pulvérisateur |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2601877B1 (fr) |
| DE (1) | DE102011056065A1 (fr) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106606341A (zh) * | 2015-10-21 | 2017-05-03 | 青岛海尔洗碗机有限公司 | 一种喷淋头及喷淋器 |
| KR20180079697A (ko) * | 2017-01-02 | 2018-07-11 | 엘지전자 주식회사 | 식기 세척기 |
| WO2018206563A1 (fr) * | 2017-05-11 | 2018-11-15 | Haier Deutschland GmbH | Distributeur de liquide commutable pourvu d'élément de ressort |
| CN109259693A (zh) * | 2018-11-14 | 2019-01-25 | 佛山市顺德区美的洗涤电器制造有限公司 | 用于洗碗机的喷臂组件和洗碗机 |
| WO2019086256A1 (fr) * | 2017-10-31 | 2019-05-09 | Arcelik Anonim Sirketi | Bras gicleur |
| CN112617707A (zh) * | 2019-10-08 | 2021-04-09 | 青岛海尔洗碗机有限公司 | 一种喷淋结构及洗碗机 |
| CN113520263A (zh) * | 2020-04-14 | 2021-10-22 | 青岛海尔洗碗机有限公司 | 一种洗碗机喷淋臂及洗碗机 |
| CN116407053A (zh) * | 2021-12-29 | 2023-07-11 | 杭州老板电器股份有限公司 | 喷淋臂机构及洗碗设备 |
| CN116687303A (zh) * | 2023-06-30 | 2023-09-05 | 宁波方太厨具有限公司 | 一种用于清洗机的喷淋结构及清洗机 |
| EP4400025A1 (fr) * | 2023-01-10 | 2024-07-17 | Illinois Tool Works Inc. | Bras de lavage pour un lave-vaisselle, en particulier un lave-vaisselle industriel, système de bras de lavage doté d'un tel bras de lavage et lave-vaisselle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3816408A1 (de) | 1988-05-13 | 1989-11-16 | Licentia Gmbh | Geschirrspuelmaschine mit einer umsteuervorrichtung |
| DE10355343B3 (de) | 2003-11-25 | 2005-04-07 | Miele & Cie. Kg | Geschirrspülmaschine mit einer Umwälzpumpe |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3160164A (en) * | 1963-10-03 | 1964-12-08 | Tappan Co | Washer with reversing spray assembly |
| DE7024995U (de) * | 1970-07-03 | 1971-03-11 | Robert Bosch Gmbh | Geschirrspülmaschine |
-
2011
- 2011-12-06 DE DE102011056065A patent/DE102011056065A1/de not_active Withdrawn
-
2012
- 2012-12-06 EP EP12401244.4A patent/EP2601877B1/fr active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3816408A1 (de) | 1988-05-13 | 1989-11-16 | Licentia Gmbh | Geschirrspuelmaschine mit einer umsteuervorrichtung |
| DE10355343B3 (de) | 2003-11-25 | 2005-04-07 | Miele & Cie. Kg | Geschirrspülmaschine mit einer Umwälzpumpe |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106606341A (zh) * | 2015-10-21 | 2017-05-03 | 青岛海尔洗碗机有限公司 | 一种喷淋头及喷淋器 |
| US11457792B2 (en) | 2017-01-02 | 2022-10-04 | Lg Electronics Inc. | Dishwasher |
| KR20180079697A (ko) * | 2017-01-02 | 2018-07-11 | 엘지전자 주식회사 | 식기 세척기 |
| EP3563750A4 (fr) * | 2017-01-02 | 2020-12-02 | LG Electronics Inc. -1- | Lave-vaisselle |
| WO2018206563A1 (fr) * | 2017-05-11 | 2018-11-15 | Haier Deutschland GmbH | Distributeur de liquide commutable pourvu d'élément de ressort |
| WO2019086256A1 (fr) * | 2017-10-31 | 2019-05-09 | Arcelik Anonim Sirketi | Bras gicleur |
| CN109259693A (zh) * | 2018-11-14 | 2019-01-25 | 佛山市顺德区美的洗涤电器制造有限公司 | 用于洗碗机的喷臂组件和洗碗机 |
| CN112617707A (zh) * | 2019-10-08 | 2021-04-09 | 青岛海尔洗碗机有限公司 | 一种喷淋结构及洗碗机 |
| CN112617707B (zh) * | 2019-10-08 | 2024-05-17 | 青岛海尔洗碗机有限公司 | 一种喷淋结构及洗碗机 |
| CN113520263A (zh) * | 2020-04-14 | 2021-10-22 | 青岛海尔洗碗机有限公司 | 一种洗碗机喷淋臂及洗碗机 |
| CN116407053A (zh) * | 2021-12-29 | 2023-07-11 | 杭州老板电器股份有限公司 | 喷淋臂机构及洗碗设备 |
| EP4400025A1 (fr) * | 2023-01-10 | 2024-07-17 | Illinois Tool Works Inc. | Bras de lavage pour un lave-vaisselle, en particulier un lave-vaisselle industriel, système de bras de lavage doté d'un tel bras de lavage et lave-vaisselle |
| CN116687303A (zh) * | 2023-06-30 | 2023-09-05 | 宁波方太厨具有限公司 | 一种用于清洗机的喷淋结构及清洗机 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2601877A3 (fr) | 2016-03-02 |
| DE102011056065A1 (de) | 2013-06-06 |
| EP2601877B1 (fr) | 2018-02-21 |
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