EP1677663B1 - Geschirrspüler mit zerkleinerungsvorrichtung - Google Patents

Geschirrspüler mit zerkleinerungsvorrichtung Download PDF

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Publication number
EP1677663B1
EP1677663B1 EP04790209A EP04790209A EP1677663B1 EP 1677663 B1 EP1677663 B1 EP 1677663B1 EP 04790209 A EP04790209 A EP 04790209A EP 04790209 A EP04790209 A EP 04790209A EP 1677663 B1 EP1677663 B1 EP 1677663B1
Authority
EP
European Patent Office
Prior art keywords
circulating pump
dishwasher
connecting shaft
comminuting device
dishwasher 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.)
Expired - Lifetime
Application number
EP04790209A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1677663A1 (de
Inventor
Helmut Jerg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL04790209T priority Critical patent/PL1677663T3/pl
Publication of EP1677663A1 publication Critical patent/EP1677663A1/de
Application granted granted Critical
Publication of EP1677663B1 publication Critical patent/EP1677663B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47L15/42—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
    • A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
    • A47L15/4227—Arrangements or adaption of recirculation or discharge pumps with macerator arrangements for chopping entrained food particles

Definitions

  • the invention relates to a dishwasher with a device for crushing flushing residues.
  • screening devices are already known which can be removed from the dishwasher, cleaned and reused.
  • Such screening devices have the disadvantage that the cleaning process is uncomfortable for the user.
  • the cleaning process is often forgotten or rarely performed, so that proper operation of the dishwasher due to the clogging of the screening devices and the obstruction in the transport of the rinsing liquid is no longer guaranteed, which adversely affects the wash result and lead in extreme cases to destruction of the dishwasher can.
  • a crushing device forage harvester
  • the known crushing devices have the disadvantage that they must be driven by a separate motor. Since the motors are one of the most expensive components in a dishwasher, they represent a large proportion of the total cost of a dishwasher. Each additional motor thus increases the cost of a dishwasher and also the risk of malfunction.
  • a dishwasher according to the preamble of independent claim 1 is known from the document EP-A-1 057 445 already known.
  • Object of the present invention is therefore to provide a dishwasher with a crushing device at low production costs, with which it is possible to easily reduce the resulting in the flushing coarse dirt in the dishwasher, transported away from the dishwasher and thus both the dishwashing result and the Serviceability of the dishwasher to improve.
  • a circulation pump for circulating the rinsing liquid and a crushing device for crushing flushing residues is provided, wherein the crushing device is driven at least temporarily by the circulation pump.
  • the dishwasher with a crushing device has the advantage that the crushing device is driven in a simple and efficient manner, which allows both a cost-effective production of the dishwasher and improves the operational safety of the dishwasher.
  • the comminution device is equipped, for example, with several comminution knives, which comminute the coarse dirt at high revolutions. As a result, the coarse dirt accumulating during the rinsing operation is comminuted to such an extent in the dishwashing machine that it can be removed from the dishwasher together with the used rinsing liquid, which both improves the rinsing result and improves the serviceability of the dishwasher.
  • the crushing device can also be operated only temporarily, ie selectively switched on or off only when needed.
  • the activation of the comminution device can for example only take place when coarse flushing residues occur in the dishwasher, such as:. during the pre-rinse phase or during the cleaning process.
  • the temporary operation of the comminution device has the advantage that the comminuting device can only be driven if necessary, which on the one hand reduces the energy consumption for the drive of the comminuting device kept as low as possible and on the other hand, the crushing device itself is spared.
  • the drive coupling between the crushing device and the circulation pump via a slip clutch in which the driving force is transmitted by mutual friction of the two coupling components.
  • the comminution device can be switched on or off as desired during the flushing operation without interrupting the operation of the circulating pump. Due to the slip clutch is prevented when blocking the crushing device, for example, by entanglement of the crushing knife with non-crushable objects or fallen cutlery, on the crushing device or on the cutlery damage.
  • the drive of the crushing device via the impeller of the circulating pump.
  • the impeller of the circulation pump By the impeller of the circulation pump, the rinsing liquid is circulated in the dishwasher, i. pumped into the designated transport routes.
  • the impeller is also one of the components of the circulation pump, which rotates at the highest revolutions. Since the comminution device is also preferably operated at high revolutions to achieve a good comminuting effect, the impeller of the circulating pump is particularly suitable for driving the comminution device without having to provide a gearbox therebetween.
  • the temporary drive of the comminuting device can be realized in a particularly simple manner if the drive coupling between the comminuting device and the circulating pump is produced by means of a connecting shaft.
  • the connecting shaft is preferably axially displaceable and limited in its axial movement by stops, wherein in one stop position of the connecting shaft, the drive coupling between the crushing device and the circulation pump is made and in the other stop position of the connecting shaft, the drive coupling between the crushing device and the circulation pump is interrupted , In this way, the drive coupling between the
  • Crushing device and the circulating pump can be selectively made or interrupted only by an axial displacement of the connecting shaft between the crushing device and the circulating pump.
  • the connecting shaft between the crushing device and the circulation pump can be coupled to the hub of the impeller of the circulating pump, wherein the connecting shaft has at least one free end in the direction of the circulating pump. Due to the axial displacement of the connecting shaft between the comminution device and the circulation pump in the direction of the circulation pump, the connecting shaft can be approximated with its free end of the hub of the impeller of the circulating pump and brought into contact with it until the connecting shaft and the impeller of the circulating pump are coupled together ,
  • the free end of the connecting shaft and the hub of the impeller of the circulating pump are preferably designed so that they represent a slip clutch in which the driving force is transmitted by mutual friction between the connecting shaft and the impeller of the circulating pump.
  • the free end of the connecting shaft and the hub of the impeller of the circulating pump may also be designed with a complementary shape to each other so that they can interlock without the possibility of a difference in the number of revolutions.
  • a coupling controller is preferably provided, by means of which the drive coupling can be established or interrupted.
  • the coupling controller may comprise, for example, a combination of a positive temperature coefficient (PTC) and a shape memory alloy (FGL) actuator mechanically acting on the drive coupling between the comminuting device and the circulating pump, thereby turning it on or off turns off.
  • PTC positive temperature coefficient
  • FGL shape memory alloy
  • the shape-memory alloy actuator has the property of assuming predetermined shapes at certain temperatures, while the positive-temperature coefficient can be electrically heated, is in heat-conductive contact with the shape-memory alloy actuator and thus heats it.
  • the actuator is made
  • a shape-memory alloy is set to assume a first predetermined shape at a first temperature, whereby the drive coupling between the comminution device and the circulation pump is interrupted, and at a second temperature assumes a second predetermined shape, whereby the drive coupling between the Crushing device and the circulation pump is made.
  • the shape memory alloy actuator may be brought to the first or second temperature, which then assumes the corresponding first or second shape, thereby activating or disengaging the drive coupling between the comminuting device and the circulating pump. off.
  • the activation or deactivation of the combination of a positive temperature coefficient and an actuator consisting of a shape-memory alloy is preferably carried out by an electronic control of the dishwasher.
  • At least two radial projections are provided on the connecting shaft between the crushing device and the circulating pump, between which engages an actuating element of the coupling regulator.
  • a sliding bearing for the actuating element of the coupling regulator is provided, via which the connecting shaft can be acted upon with force in both axial directions to cause the axial displacement of the connecting shaft or to keep the connecting shaft in a desired axial position ,
  • the drive coupling between the comminution device and the circulation pump can also be established or interrupted by an electromagnetic switch, which causes the axial displacement of the connecting shaft between the comminution device and the circulating pump by means of electromagnetic force.
  • the electromagnetic switch operates on the principle of a current flowing through electric coil coil which surrounds a ferrite core, wherein the connection axis for the drive coupling between the crushing device and the circulation pump is the ferrite core.
  • the coil of the electromagnetic switch at least partially surrounds the connection axis, so that it exerts a force in the axial direction on the connection axis as soon as electrical current flows through the coil.
  • the coil When the coil of electric current in a first polarity is traversed, the coil generates an axial force in a first direction at the connection axis, when the coil is traversed by electric current in a polarity opposite to the first polarity, the coil generates on the connection axis an axial force in a direction opposite to the first direction.
  • the connecting shaft between the crushing device and the circulating pump can optionally be acted upon with force in both axial directions in order to effect the axial displacement of the connecting shaft or to keep the connecting shaft in a desired axial stop position.
  • the comminuting device is arranged inside and the coupling regulator outside a washing container of the dishwasher.
  • Such an arrangement has the advantage that the positive temperature coefficient (PTC), which controls the shape memory alloy (FGL) existing actuator or the coil of the electromagnetic switch, is disposed outside of the washing container, and thus before the changing temperatures of the rinsing liquid is protected. Furthermore, a contact of the power supply of the positive temperature coefficient or the coil of the electromagnetic switch is prevented with the rinsing liquid and thus ensures the reliability of the dishwasher according to the invention.
  • PTC positive temperature coefficient
  • FGL shape memory alloy
  • Fig. 1 shows a cross section of the lower part of a dishwasher with a crushing device according to the present invention.
  • the sump 1 which is the washing container (not completely shown) of the dishwasher closes down.
  • a sieve arrangement 2 and 3 is provided which consists essentially of a fine sieve 2 and a coarse sieve 3 integrated therein.
  • the rinsing liquid in the rinsing container flows down through the sieve arrangement 2 and 3 and collects at the bottom of the sump 1. From there, the rinsing liquid is either pumped during rinsing by the circulating pump 6 again in the transport paths for the rinsing liquid or pumping operation by a Reuse 5 removed via the drain pump 4 from the dishwasher.
  • the crushing device consists essentially of a connection axis 8, which is rotatably supported via two bearings 9 and 10 at the bottom of the pump pot 1 and slidably mounted in the axial direction.
  • the connection axis 8 has two free ends, wherein the one free end is equipped with the crushing blades 12, which comminute the coarse dirt at the bottom of the pump pot 1 during operation of the crushing device.
  • the other free end 18 of the connecting shaft 8 is coupled to the impeller 7 of the circulating pump 6.
  • Fig. 2 shows a detail view of in Fig.1 illustrated cross section of the lower part of the dishwasher with a crushing device according to the present invention Invention.
  • Fig. 2 can be seen that the crushing device essentially has a connection axis 8, which is rotatably supported by two bearings 9 and 10 at the bottom of the pump pot 1 and slidably mounted in the axial direction.
  • the connection axis 8 is shown in an axially shifted to the left position in which the crushing blades 12 opposite free end 18 of the connecting shaft 8 from the impeller 7 of the circulation pump 6 is spaced and decoupled.
  • two radial projections in the form of discs 16 are provided between the two bearings, between which the actuating element 14 of a coupling controller 13 engages.
  • the two radial discs 16 on the connecting shaft 8 thus form a sliding bearing, via which the connecting shaft 8 can be acted upon by the actuating element 14 of the coupling regulator 13 with force in both axial directions to effect the axial displacement of the connecting shaft 8 or the connecting shaft 8 in to maintain a desired axial position.
  • the coupling controller 13 is a positive temperature coefficient (PTC) which is in heat-conducting contact with the actuating element 14.
  • the actuator 14 is made of a shape memory alloy (FGL) which has the property of assuming given shapes at certain temperatures.
  • FGL shape memory alloy
  • the shape-memory alloy of the actuator 14 is set to assume a first predetermined shape at a first temperature, thereby displacing the connecting shaft 8 axially to the left via the slide bearing 16 in such a position the drive coupling between the connecting shaft 8 and the impeller 7 of the circulating pump 6 is interrupted, and at a second temperature assumes a second predetermined shape 15, while the connecting shaft 8 via the slide bearing 16 in such a position moves axially to the right, in which the drive coupling between the connecting axis 8 and the impeller 7 of the circulating pump 6 is made.
  • the positive-temperature coefficient of the coupling regulator 13 may be electrically heated to provide the shape-memory alloy of the heat-conductive contact To heat actuator 14 to the desired temperature. With the aid of the positive temperature coefficient 13, the actuating element 14 can thus be brought to the first or second temperature, which then assumes the corresponding first 14 or second mold 15 and thereby the drive coupling between the connecting axis 8 of the comminution device and the impeller 7 of the circulation pump 6 turns on or off.
  • the activation or deactivation of the coupling regulator 13 takes place via electrical connections 11, which are connected to an electronic control of the dishwasher. While the actuating element 14 is located inside the pump pot 1, the coupling regulator 13 is arranged outside the pump pot 1 in order to protect it from the influences of the flushing liquid and to prevent contact of the flushing liquid with the power supply 11 to the coupling regulator 13.
  • the free end 18 of the connecting shaft 8 of the comminuting device comes into contact with the hub of the impeller 7 of the circulation pump 6.
  • the drive coupling between the connecting axis 8 and the impeller 7 of the circulating pump 6 via a slip clutch is designed so that the driving force is transmitted by mutual friction of the two coupling components.
  • the comminuting device Due to the drive coupling between the connection axis 8 of the comminution device and the impeller 7 of the circulation pump 6 via a slip clutch 17, 18, the comminuting device can be arbitrarily switched on or off during the flushing operation, without interrupting the operation of the circulation pump 6 or obstruct. Further, upon blocking of the crushing blades 12, the slip clutch 17, 18 may slip without damaging the circulation pump 6 or interrupting its operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Processing Of Solid Wastes (AREA)
EP04790209A 2003-10-08 2004-10-08 Geschirrspüler mit zerkleinerungsvorrichtung Expired - Lifetime EP1677663B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04790209T PL1677663T3 (pl) 2003-10-08 2004-10-08 Zmywarka do naczyń z urządzeniem rozdrabniającym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10346675A DE10346675A1 (de) 2003-10-08 2003-10-08 Geschirrspüler mit Zerkleinerungsvorrichtung
PCT/EP2004/011271 WO2005034714A1 (de) 2003-10-08 2004-10-08 Geschirrspüler mit zerkleinerungsvorrichtung

Publications (2)

Publication Number Publication Date
EP1677663A1 EP1677663A1 (de) 2006-07-12
EP1677663B1 true EP1677663B1 (de) 2009-12-23

Family

ID=34399352

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04790209A Expired - Lifetime EP1677663B1 (de) 2003-10-08 2004-10-08 Geschirrspüler mit zerkleinerungsvorrichtung

Country Status (8)

Country Link
US (1) US8382914B2 (pl)
EP (1) EP1677663B1 (pl)
CN (1) CN1867290B (pl)
AT (1) ATE452575T1 (pl)
DE (2) DE10346675A1 (pl)
ES (1) ES2337151T3 (pl)
PL (1) PL1677663T3 (pl)
WO (1) WO2005034714A1 (pl)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7497222B2 (en) * 2004-07-02 2009-03-03 Bsh Bosch Und Siemens Hausgeraete Comminution device and method for comminuting residue in a dishwasher
US8557053B2 (en) * 2008-11-26 2013-10-15 Electrolux Home Products, Inc. Actuator assembly and associated apparatuses
US8746261B2 (en) * 2009-12-21 2014-06-10 Whirlpool Corporation Rotating drum filter for a dishwashing machine
US9918609B2 (en) * 2009-12-21 2018-03-20 Whirlpool Corporation Rotating drum filter for a dishwashing machine
US8667974B2 (en) * 2009-12-21 2014-03-11 Whirlpool Corporation Rotating filter for a dishwashing machine
US9687135B2 (en) 2009-12-21 2017-06-27 Whirlpool Corporation Automatic dishwasher with pump assembly
US8627832B2 (en) 2010-12-13 2014-01-14 Whirlpool Corporation Rotating filter for a dishwashing machine
US9119515B2 (en) 2010-12-03 2015-09-01 Whirlpool Corporation Dishwasher with unitary wash module
US9668636B2 (en) 2010-11-16 2017-06-06 Whirlpool Corporation Method and apparatus for dishwasher with common heating element for multiple treating chambers
US9113766B2 (en) 2010-11-16 2015-08-25 Whirlpool Corporation Method and apparatus for dishwasher with common heating element for multiple treating chambers
US9034112B2 (en) 2010-12-03 2015-05-19 Whirlpool Corporation Dishwasher with shared heater
US8733376B2 (en) 2011-05-16 2014-05-27 Whirlpool Corporation Dishwasher with filter assembly
US9107559B2 (en) 2011-05-16 2015-08-18 Whirlpool Corporation Dishwasher with filter assembly
US9005369B2 (en) 2011-06-20 2015-04-14 Whirlpool Corporation Filter assembly for a dishwasher
US9010344B2 (en) 2011-06-20 2015-04-21 Whirlpool Corporation Rotating filter for a dishwashing machine
US9265401B2 (en) 2011-06-20 2016-02-23 Whirlpool Corporation Rotating filter for a dishwashing machine
US20120318296A1 (en) 2011-06-20 2012-12-20 Whirlpool Corporation Ultra micron filter for a dishwasher
US9861251B2 (en) 2011-06-20 2018-01-09 Whirlpool Corporation Filter with artificial boundary for a dishwashing machine
US9301667B2 (en) 2012-02-27 2016-04-05 Whirlpool Corporation Soil chopping system for a dishwasher
US9237836B2 (en) 2012-05-30 2016-01-19 Whirlpool Corporation Rotating filter for a dishwasher
US9730570B2 (en) 2012-05-30 2017-08-15 Whirlpool Corporation Reduced sound with a rotating filter for a dishwasher
US9833120B2 (en) 2012-06-01 2017-12-05 Whirlpool Corporation Heating air for drying dishes in a dishwasher using an in-line wash liquid heater
US9451862B2 (en) 2012-06-01 2016-09-27 Whirlpool Corporation Dishwasher with unitary wash module
US9532700B2 (en) 2012-06-01 2017-01-03 Whirlpool Corporation Dishwasher with overflow conduit
US9554688B2 (en) 2012-10-23 2017-01-31 Whirlpool Corporation Rotating filter for a dishwasher and methods of cleaning a rotating filter
US10813527B2 (en) * 2017-08-29 2020-10-27 Whirlpool Corporation Blade and pump impeller assembly for a dishwasher
CN108378802A (zh) * 2018-05-08 2018-08-10 东莞优乐家智能家电有限公司 一种厨余洗碗一体机
CN113842093B (zh) * 2021-08-26 2023-09-12 华帝股份有限公司 一种用于洗碗机的残渣粉碎方法
BE1031791B1 (de) * 2023-07-11 2025-02-11 Miele & Cie Haushaltsgerät, insbesondere wasserführendes Haushaltsgerät

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Also Published As

Publication number Publication date
DE10346675A1 (de) 2005-05-04
PL1677663T3 (pl) 2010-06-30
US8382914B2 (en) 2013-02-26
EP1677663A1 (de) 2006-07-12
CN1867290B (zh) 2012-05-16
CN1867290A (zh) 2006-11-22
ATE452575T1 (de) 2010-01-15
ES2337151T3 (es) 2010-04-21
US20070107753A1 (en) 2007-05-17
WO2005034714A1 (de) 2005-04-21
DE502004010556D1 (de) 2010-02-04

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