EP1973460A1 - Haushalt-geschirrspülmaschine - Google Patents
Haushalt-geschirrspülmaschineInfo
- Publication number
- EP1973460A1 EP1973460A1 EP06830707A EP06830707A EP1973460A1 EP 1973460 A1 EP1973460 A1 EP 1973460A1 EP 06830707 A EP06830707 A EP 06830707A EP 06830707 A EP06830707 A EP 06830707A EP 1973460 A1 EP1973460 A1 EP 1973460A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- drain
- line
- dishwasher according
- bypass line
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 238000013022 venting Methods 0.000 claims abstract description 16
- 238000005086 pumping Methods 0.000 claims abstract description 7
- 238000004851 dishwashing Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims description 18
- 238000009423 ventilation Methods 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 description 11
- 239000012530 fluid Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
-
- 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
- A47L15/4223—Devices for water discharge, e.g. devices to prevent siphoning, non-return valves
Definitions
- the invention relates to a dishwasher, in particular a
- a drain pump for pumping out soiled rinsing liquid from a rinsing tank, a discharge side connected to the drain pump discharge line, which is connected to a above the uppermost liquid level of the rinse tank vent, wherein in the vent hole, a first valve is disposed at Operation of the drain pump closed and otherwise open.
- Such a generic dishwasher is known from DE 40 40 967 A1.
- This further has a arranged in the drain line second valve, said second valve is kept closed with unconfirmed drain pump.
- the first valve serves to provide a venting of the drain pump, whereby air bubbles in the drain pump can escape through the vent shaft, so that the drain pump can start immediately after switching on with the promotion of the rinsing liquid to be pumped.
- the second valve serves to avoid a backflow of rinsing liquid conveyed from the drain pump into the drain line into the washing compartment.
- Lye pumps of household dishwashers are usually not sufficiently capable of conveying air.
- the drain pump At the end of a program section with liquid promotion usually the drain pump is operated with a predetermined running time for pumping out of dirty dishwashing liquid in domestic dishwashers.
- a larger part of the set running time of the drain pump is required to convey the trapped air before the liquid to be pumped off can be pumped out.
- it is not possible that the entire amount of liquid to be pumped out is not pumped out.
- even the situation may occur that due to air trapping in the drain pump, a fluid delivery is not possible at all.
- Lye pumps of this type have their discharge nozzle therefore usually arranged centrally on the pump housing of the drain pump.
- the situation may arise that, as a result of the rotation of the impeller, rinsing fluid is forced to the outside of the pump housing due to the greater mass relative to air, while air accumulates in the interior. This air ring on the pump prevents sufficient pressure build-up to open the second valve, so that no flushing liquid can be pumped.
- the bypass line is connected to a first end with a located above the uppermost liquid level reversing portion of the drain line.
- the first end of the bypass line thus ends in a portion of the drain line, which is in operative connection to the vent shaft. This ensures that air bubbles in the drain pump can escape via the bypass line in the direction of the ventilation shaft, so that the promotion of the rinsing liquid to be pumped off after the shortest duration of the drain pump.
- the bypass line opens with a second end in a, in the direction of gravity upper portion of a housing of the drain pump.
- an air bubble inside the pump housing is formed in an upper portion thereof.
- the cross section of the drain line is reduced in the return section opposite at least one arranged in remplisstechniksströmungshchtung before the turnaround section of the drain line.
- the return portion of the drainage conduit is substantially in the shape of an inverted "U" and is located in the domestic dishwasher above the uppermost fluid level and the drain hose is reliably guaranteed.
- the cross-sectional reduction in the return section of the drain line is caused by a protrusion of the first end of the bypass line.
- the cross section of the bypass line is greater at its first end than at its second end. In this way it can be ensured that due to the Venturi effect, no dirt particles can settle in this, since the cross section of the bypass line increases in the flow direction. The reliability of the bypass line is thus ensured in any case.
- the first valve is a float valve, wherein the float can close a arranged in a transverse wall of the vent shaft, serving as a valve seat, opening.
- the second valve is designed as a biased against the sosstechniksströmungshchtung flap valve with a system as a valve seat for a flap valve body. If the rinsing liquid is conveyed through the drain pump, opening of the flap valve is effected by the pressure built up by the rinsing liquid. On the other hand, if a pressure is generated against the direction of liquid flow, the flap valve body is pressed firmly against the valve seat, whereby a backflow of washing liquid in the direction of the drain pump and thus in the washing is effectively prevented.
- the flap valve body may be formed with its storage mounts as an integral part of an elastic material. With this measure, the flap valve body is easy to manufacture, and the installation of the flap valve body is facilitated.
- Liquid flow direction arranged after the connection of the drain line to the vent shaft.
- ventilation of the drain line and the drain pump can be ensured in connection with the bypass line.
- the arrangement prevents at the same time a vacuuming of the domestic dishwasher due to negative pressure in a house drain to which the drain line is connected.
- the second valve is arranged in a supply line to the drain pump.
- a backflow of rinsing liquid is tolerated in the drain pump via the drain line and possibly the bypass line.
- the pump inlet associated with the second valve effectively ensures that the dirty rinsing liquid can not get into the washing.
- the venting of the drain line and the drain pump as well as the prevention of the return suction of flushing liquid from the household Dishwasher due to a negative pressure in the house drain is reliably ensured by the first valve.
- the second valve is a valve in the bypass line and a valve in the drain line in remplisstechniksströmungshchtung before the connection of the drain line to the vent shaft. Also in this variant, the advantages described above are achieved.
- the reversing portion of the drain line, the vent shaft, an air outlet of the vent shaft, the first valve in the vent shaft, the second valve in the drain line and a first end facing portion of the bypass line to a largely made of plastic Assembly unit summarized. This unit is easy to grow on the washing of the household dishwasher.
- FIGURE shows a schematic representation of a venting of a drain pump of a domestic dishwasher in a longitudinal section.
- a drain pump 1 for pumping out rinsing liquid at the end of a program section with liquid delivery from a washing, not shown leads from the drain pump 1, a drain pipe 4 to a drain hose, not shown, and from this further into a drainage channel of a house.
- the drain line 4 is connected to the domestic dishwasher according to the invention with an outlet nozzle 3 of the drain pump 1.
- a reverse section 5 of the discharge line 4 having the reverse shape of a "U" is connected to a ventilation shaft 9.
- the connection of the ventilation shaft 9 to the reversing section 5 is arranged in the household dishwasher according to the invention in a structural unit 24.
- the flushing fluid pumped out by the drain pump 1 is discharged through the drain line 4 in the remplisstechniksströmungshechtung of the outlet nozzle 3 of the drain pump via the return section 5 and the line section 23 via the drain hose into the drainage channel of the house.
- the vent shaft 9 is connected via an air inlet 25 with the
- the introduced via the air inlet 25 from the washing container into the assembly 24 air is discharged through an air outlet nozzle 22, possibly through an air guide hose, not shown, and an outlet opening on the domestic dishwasher.
- the connection of the vent shaft 9 with the reversing section 5 of the drain line 4 is given by a arranged in a transverse wall 12 opening 11 which is connected to a cavity 26.
- the opening 11 serves as a valve seat for a float 10 of a valve 18 in the venting duct 9.
- the float 10 is e.g. designed as a hollow cylinder with attached in the direction of the opening 11 hollow conical tip.
- the opening 11 may be provided in the direction of the float with a frusto-conical extension for better conditioning of the conical tip of the float 10.
- a valve 19 is arranged in remplisstechniksströmungshchtung A after the connection of the reversing section 5 with the vent shaft 9.
- the valve 19 at the end of the lying in the liquid flow direction A portion of the reversing portion 5 is formed, for example, as against the liquid flow direction A biased flapper valve.
- a flap valve body 21 of the valve 19 is located in the manner shown in the figure with an unactuated lye pump on a system 20 of the reversing section 5.
- actuated drain pump 1 is the Flap valve body 21 is pivoted about a rotatable axis in the direction of the liquid flow direction A.
- valve 19 could also be arranged in the form of a biased against the liquid flow direction flap valve in the liquid flow direction in a supply line to the drain pump 1, which is connected to an inlet nozzle 2 of the drain pump 1. This is not shown in detail in the figure.
- the figure shows an example of the arrangement of the outlet nozzle 3 of the drain pump 1 in a typical form for such liquor pumps, which are operated with a synchronous motor.
- the outlet nozzle 3 is arranged centrally on a pump housing 16 and extends in the horizontal direction. It may happen that forms an air bubble in an upper portion 17 of the pump housing 16. Since this bubble can even completely prevent the pumping of rinsing liquid through the drain pump in unfavorable cases, a bypass line 6 is provided in the domestic dishwasher according to the invention, which extends between the upper portion 17 of the pump housing 16 and the reversing section 5 of the drain line 4.
- a first end 7 of the bypass line 6, which projects into the reversing section 5 of the drain line 4, is arranged such that an operative connection to the ventilation shaft 9 is provided.
- a second end 8 of the bypass line 6 opens into the upper portion 17 of the pump housing 16th
- Lase pump 1 a located in this bubble can escape via the bypass line 6, the reversing section 5 of the drain line 4 via the vent shaft 9.
- the valve 19 closes the vent 9 and at the same time the valve 19 opens due to the flow of the pumped out wash liquor.
- the first end 7 of the bypass line 6 protrudes into the reversing section 5 of the drain line 4 in such a way that a cross-sectional reduction 13 is formed in the reversing section 5.
- the reversing section 5 of the drain line 4, the vent 9, the air outlet 22 of the vent 9, the first valve 18 in the vent, the second valve 19 of the drain line and a first end facing portion of the bypass line can advantageously to a be largely composed of plastic assembly 24 summarized.
- the drain line 4 is then connected to an inlet connection 14 of this assembly 24.
- the line section 23 is connected to an outlet nozzle 15 of the assembly 24.
- the assembly 24 is advantageously easy to grow on a washing or a housing component of the household dishwasher.
- the provision of the bypass line 6 thus enables the provision of a dishwasher, in which a venting of the drain pump 1 and the drain line 4 is given. This results in a safe venting of the pump housing 16 without Spülillonkeitsverschleppung on the bypass of the vent.
- the bypass line also allows the positioning of the valve 19 acting as a backflow preventer in the inlet to the drain pump 1 out. Furthermore, an additional venting is given during the Laugenpumpenbethebs, so that any sucked in during operation air volume can be reduced already in the pump housing 16 of the drain pump 1.
- FIG. 13 Cross-sectional reduction
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Washing And Drying Of Tableware (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005062471A DE102005062471A1 (de) | 2005-12-27 | 2005-12-27 | Haushalt-Geschirrspülmaschine |
| PCT/EP2006/069880 WO2007074104A1 (de) | 2005-12-27 | 2006-12-19 | Haushalt-geschirrspülmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1973460A1 true EP1973460A1 (de) | 2008-10-01 |
| EP1973460B1 EP1973460B1 (de) | 2017-03-01 |
Family
ID=37888302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06830707.3A Not-in-force EP1973460B1 (de) | 2005-12-27 | 2006-12-19 | Geschirrspülmaschine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8356610B2 (de) |
| EP (1) | EP1973460B1 (de) |
| CN (1) | CN101351139B (de) |
| DE (1) | DE102005062471A1 (de) |
| WO (1) | WO2007074104A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008029368B4 (de) | 2008-06-20 | 2016-11-03 | BSH Hausgeräte GmbH | Wasserführendes Haushaltsgerät |
| ES2388172B1 (es) * | 2009-08-07 | 2013-08-19 | Bsh Electrodomesticos España S.A. | Máquina lavavajillas con un dispositivo de captación para un estado de llenado de un dispositivo colector para un líquido acuoso de lavado. |
| DE102010039656A1 (de) | 2010-08-23 | 2012-02-23 | BSH Bosch und Siemens Hausgeräte GmbH | Geschirrspülmaschine, insbesondere Haushalt-Geschirrspülmaschine |
| US9204780B2 (en) | 2011-02-01 | 2015-12-08 | Electrolux Home Products, Inc. | Siphon break apparatus configured to substantially prevent a siphon effect in a fluid conduit of a dishwasher and an associated method |
| DE102013223920A1 (de) * | 2013-11-22 | 2015-05-28 | BSH Hausgeräte GmbH | Haushaltsgerät |
| CN112057014A (zh) * | 2020-08-25 | 2020-12-11 | 陈瑜 | 一种水路系统及餐具清洗设备 |
| CN112922104A (zh) * | 2021-01-22 | 2021-06-08 | 冯玉溪 | 一种智能化、自动化高效自动除渣清洗装置 |
| CN112916483A (zh) * | 2021-01-25 | 2021-06-08 | 刘淑艳 | 一种基于智能制造产品的全方面清洗装置 |
| CN120018804A (zh) | 2022-11-04 | 2025-05-16 | 三星电子株式会社 | 洗碗机 |
Family Cites Families (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3183839A (en) * | 1965-05-18 | Pump control | ||
| US2287397A (en) * | 1940-03-29 | 1942-06-23 | Herbert E Rupp | Double suction liquid pump |
| US3346000A (en) * | 1963-09-26 | 1967-10-10 | Gen Electric | Anti-siphon device for an automatic washer |
| DE1900706U (de) * | 1964-06-22 | 1964-09-17 | Miele & Cie Maschinenfabrik | Geschirrspuelmaschine mit entlueftungsvorrichtung fuer nicht selbstansaugende abwasserpumpen. |
| US3290909A (en) * | 1964-10-07 | 1966-12-13 | Philco Corp | Laundry apparatus |
| DE1914744U (de) * | 1964-11-13 | 1965-04-29 | Miele & Cie | Geschirrspuelmaschine. |
| US3294102A (en) * | 1964-12-09 | 1966-12-27 | Whirlpool Co | Dishwashing apparatus having improved pump means |
| US3630373A (en) * | 1969-06-10 | 1971-12-28 | Electro Metals Inc | Pump and impeller unit |
| SE361917B (de) * | 1971-10-25 | 1973-11-19 | C B Pettersson | |
| US4255079A (en) * | 1979-08-06 | 1981-03-10 | Penco Division Of Hudson Engineering Company | Self-priming system for pumps |
| GB2090382A (en) * | 1980-12-29 | 1982-07-07 | Mcalpine & Co Ltd | Vent valve |
| SU1052714A1 (ru) * | 1981-04-16 | 1983-11-07 | Предприятие П/Я М-5830 | Центробежный насос |
| GB2134672B (en) * | 1983-01-07 | 1986-07-30 | Kai Cheong Lee | Fluid pump control system |
| SU1109492A2 (ru) * | 1983-05-20 | 1984-08-23 | Украинский Ордена Дружбы Народов Институт Инженеров Водного Хозяйства | Гидравлический клапан срыва вакуума в сифонных водовыпусках насосных станций |
| SE8900407L (sv) * | 1989-02-07 | 1990-08-08 | Electrolux Ab | Anordning vid diskmaskin |
| DE4040967C2 (de) * | 1990-12-20 | 1994-07-14 | Bosch Siemens Hausgeraete | Haushalt-Geschirrspülmaschine |
| JPH0861280A (ja) * | 1994-08-17 | 1996-03-08 | Kubota Corp | 横軸斜流ポンプの小水量管理運転装置 |
| DE19537944A1 (de) * | 1995-10-12 | 1997-04-17 | Aeg Hausgeraete Gmbh | Entleerungspumpe für Waschmaschinen oder dergl. |
| US5868011A (en) * | 1997-04-04 | 1999-02-09 | General Electric Company | Water traps for washing machines |
| JPH10314496A (ja) * | 1997-05-15 | 1998-12-02 | Hitachi Ltd | 自吸式ポンプおよびそのポンプを用いた洗濯機 |
| DE19741590A1 (de) * | 1997-09-20 | 1999-03-25 | Aeg Hausgeraete Gmbh | Entleerungspumpe für wasserführende Haushaltsgeräte |
| JPH11193791A (ja) * | 1997-12-26 | 1999-07-21 | Aimu Denki Kogyo Kk | 水中ポンプ |
| DE29722975U1 (de) * | 1997-12-30 | 1998-02-26 | Bosch-Siemens Hausgeräte GmbH, 81669 München | Geschirrspülmaschine |
| JP4049888B2 (ja) * | 1998-06-16 | 2008-02-20 | カルソニックカンセイ株式会社 | 容量可変斜板式コンプレッサ |
| KR100271168B1 (ko) * | 1998-06-17 | 2000-11-01 | 윤종용 | 드럼세탁기 배수펌프의 공기배출관 |
| JP3545331B2 (ja) * | 2000-11-08 | 2004-07-21 | 株式会社山田製作所 | ポンプのエア抜き構造 |
| KR20040046945A (ko) * | 2002-11-28 | 2004-06-05 | 엘지전자 주식회사 | 식기세척기의 배수장치 |
| KR20050036472A (ko) * | 2003-10-16 | 2005-04-20 | 엘지전자 주식회사 | 식기세척기의 에어브레이크어셈블리 |
| DE20319711U1 (de) * | 2003-12-19 | 2004-04-01 | Electrolux Home Products Corp. N.V. | Geschirrspülmaschine |
| CN1682638A (zh) * | 2004-04-12 | 2005-10-19 | 乐金电子(天津)电器有限公司 | 洗碗机的气压平衡装置 |
| JP2005307823A (ja) * | 2004-04-20 | 2005-11-04 | Nidec Shibaura Corp | ポンプ及びそれを用いた食器洗い機 |
| DE102005012519A1 (de) * | 2005-03-16 | 2006-09-21 | Aweco Appliance Systems Gmbh & Co. Kg | Haushaltsmaschine, insbesondere Geschirrspüler oder Waschmaschine |
-
2005
- 2005-12-27 DE DE102005062471A patent/DE102005062471A1/de not_active Withdrawn
-
2006
- 2006-12-19 WO PCT/EP2006/069880 patent/WO2007074104A1/de not_active Ceased
- 2006-12-19 EP EP06830707.3A patent/EP1973460B1/de not_active Not-in-force
- 2006-12-19 US US12/087,134 patent/US8356610B2/en not_active Expired - Fee Related
- 2006-12-19 CN CN200680049641XA patent/CN101351139B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007074104A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005062471A1 (de) | 2007-07-12 |
| CN101351139B (zh) | 2011-07-27 |
| WO2007074104A1 (de) | 2007-07-05 |
| US8356610B2 (en) | 2013-01-22 |
| EP1973460B1 (de) | 2017-03-01 |
| US20110155189A1 (en) | 2011-06-30 |
| CN101351139A (zh) | 2009-01-21 |
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