EP2976528B1 - Pompe de dosage - Google Patents

Pompe de dosage Download PDF

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Publication number
EP2976528B1
EP2976528B1 EP14709886.7A EP14709886A EP2976528B1 EP 2976528 B1 EP2976528 B1 EP 2976528B1 EP 14709886 A EP14709886 A EP 14709886A EP 2976528 B1 EP2976528 B1 EP 2976528B1
Authority
EP
European Patent Office
Prior art keywords
metering pump
housing
electric motor
pump according
piston
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.)
Active
Application number
EP14709886.7A
Other languages
German (de)
English (en)
Other versions
EP2976528A1 (fr
Inventor
Rainer HONER
Markus LAUFER
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.)
Marquardt Mechatronik GmbH
Original Assignee
Marquardt Mechatronik 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 Marquardt Mechatronik GmbH filed Critical Marquardt Mechatronik GmbH
Priority to PL14709886T priority Critical patent/PL2976528T3/pl
Publication of EP2976528A1 publication Critical patent/EP2976528A1/fr
Application granted granted Critical
Publication of EP2976528B1 publication Critical patent/EP2976528B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors

Definitions

  • the invention relates to a metering pump according to claim 1.
  • Such a metering pump serves, for example, for supplying and / or metering liquid detergent in a washing machine, in a dishwasher or in another domestic appliance.
  • Such home appliances are in the documents DE 10 2011 083 297 B3 such as EP 2 479 335 A1 described.
  • Domestic dosing pumps generally have an electrically powered pump. From the DE 462 509 A is designed as a piston pump with a reciprocating pump known, which has an electric motor with an output shaft for driving the pump. On the output shaft cooperating with the reciprocating piston eccentric is arranged such that the rotational rotational movement of the electric motor is converted into a translational, in particular in an oscillating translational, reciprocating motion of the reciprocating piston.
  • Further dosing pumps are in the DE 36 00 341 A1 and in the WO 2010/088780 A1 described. It has been found that the operation of such metering pumps a certain viscosity dependence is observed with different viscous commercial liquid detergents. This in turn can cause inaccuracies in the dosage of the liquid detergent.
  • the invention has for its object to further develop the metering pump such that an improvement in terms of the viscosity dependence is achieved with different viscosity liquid detergents.
  • the electric motor may be a synchronous motor.
  • the dosage can be adjusted in a simple manner by a control of the electric motor with speed constant drive, for example via a timer.
  • the piston pump may have a housing.
  • guides can be arranged in the housing for the reciprocating piston, so that tilting of the reciprocating piston is avoided.
  • the piston pump may have an umbrella valve at its suction and / or pressure port.
  • the umbrella valve can be provided with a valve bias, so that the piston pump can dose both thick and liquid liquid detergent.
  • the umbrella valve can be located in a valve plate.
  • a Housing termination be arranged with the suction and / or pressure port corresponding hose connections on the housing.
  • a cover can be arranged opposite the housing closure on the housing.
  • the housing can be designed in about a cylinder in a cost effective manner.
  • the electric motor can be arranged on the lateral surface of the cylinder, such that the output shaft protrudes into the housing and / or the eccentric is located inside the housing. The electric motor can too its protection must be provided with a motor cover secured to the housing by means of latching hooks.
  • the supply lines for the electrical power supply of the electric motor can be performed in a reliable manner by means of a bracket on the engine cover.
  • the invention further provides a domestic appliance, in particular a washing machine, a dishwasher o.
  • a domestic appliance in particular a washing machine, a dishwasher o.
  • a metering pump for supplying a fluid, in particular a liquid detergent, ready in the working space.
  • the metering pump is designed according to the above description.
  • a piston pump driven by an electric motor is provided with a reciprocating piston as a metering pump for the domestic appliance.
  • the electric motor has an output shaft, wherein an eccentric is arranged on the output shaft. The eccentric engages in a groove, a long groove, a recess o. The like.
  • On the reciprocating piston such that the rotational rotational movement of the output shaft of the electric motor generates a translational, in particular oscillating translational, lifting movement of the reciprocating piston.
  • the pump principle is designed as a piston pump.
  • the piston pump has on the suction and / or pressure side two simple and very inexpensive umbrella valves, which ensure by their specially designed valve bias that the pump dosed reliably both thick and thin liquids within the specified tolerance.
  • the inlet and / or outlet cross sections of the pump head are designed so that even with highly viscous media results in only a slight pressure drop and sucks the pump reliable.
  • a special eccentric principle is used.
  • a rotating on the motor shaft eccentric moves in a long groove of the piston, whereby the oscillating motion is generated. Additional guides in the housing protect the piston against tilting.
  • the advantages achieved by the invention are in particular that a high dosing accuracy, for example of ⁇ 10%, with a very low viscosity dependence over a wide viscosity range, for example from 1 mPas (Milli-Pascal) to 5000 mPas, is reached. It can be done in a simple manner, an adjustment of the inlet and / or outlet to the viscosity range of the medium, for example by a hose connection diameter of 8-10 mm and / or a valve opening pressure of 0.2 ⁇ 0.1 bar is selected. Furthermore, a self-priming pump principle is created up to delivery heights of 1 m. The special drive concept ensures low noise during operation of the dosing pump. In addition, a simple control via a time relay is made possible by the constant-speed drive. The metering pump can be manufactured by inexpensive standard manufacturing processes. Finally, the metering pump has compact external dimensions.
  • a metering pump 1 for a washing machine which serves for the supply and dosage for a liquid detergent in the washing process.
  • the metering pump 1 has a housing 2, which is provided on one side with a cover 3 and on the other side with hose connections 4, 5 for lines to the reservoir for the liquid detergent and the washing container in the washing machine.
  • the housing 2 is the actual pump, which in turn is driven by means of a housing 2 arranged on the electric motor 6.
  • the pump is designed as a piston pump with a reciprocating piston 7.
  • the electric motor 6 has an output shaft 8, wherein on the output shaft 8 a co-operating with the reciprocating piston 7 eccentric 9 is arranged.
  • the eccentric 9 With the help of the eccentric 9, the rotary rotational movement of the electric motor 6 is converted into a translational, and in particular in an oscillating translational, stroke movement of the reciprocating piston 7.
  • the reciprocating piston 7 of the eccentric 9 engages the output shaft 8 in an in Fig. 3 visible long groove 10, another groove, a recess o. The like.
  • On the reciprocating piston 7 a On the reciprocating piston 7 a.
  • the electric motor 6 is preferably a synchronous motor, ie a motor, in which the rotor is acted upon synchronously by a moving magnetic rotating field in the surrounding stator. As a result, the synchronous motor has a speed corresponding to the alternating voltage to be applied.
  • the electric motor 6 is provided with an attached by means of latching hooks 19 on the housing 2 engine cover 18.
  • the leads 20 for the supply of electrical voltage to the electric motor 6 are guided by means of a bracket 21 on the engine cover 18.
  • the housing 2 is configured approximately as a cylinder.
  • the electric motor 6 is arranged on the lateral surface of the cylinder, such that the output shaft 8 projects into the housing 2 and / or the eccentric 9 is located in the interior of the housing 2.
  • In the housing 2 are not visible guides for the reciprocating piston 7, so that tilting of the reciprocating piston 7 is avoided.
  • On reciprocating piston 7 is still a piston seal 11 is located.
  • the hose connections 4, 5 correspond to the suction and / or pressure connection for the metering pump 1 and are located on a housing closure 12.
  • the housing closure 12 is arranged opposite the cover 3 on the housing 2 and secured to the housing 2 by means of latching hooks 13.
  • the metering pump 1 has at its suction port 4 and pressure port 5 each have a shield valve 14.
  • the umbrella valves 14 are provided with a valve bias, so that the metering pump 1 can dose both thick and liquid liquid detergent.
  • the umbrella valves 14 are arranged according to the flow direction of the liquid detergent and located in a valve plate 15, which in turn is sealed by means of an O-ring 16 disposed on the housing 2.
  • the valve plate 15 is sealed by means of a sealing ring 16.
  • Fig. 4 is a household appliance, namely to see a washing machine 22 with a serving as a washing container working space 23.
  • the washing machine 22 has a reservoir 24 for a fluid, here a liquid detergent.
  • the washing machine 22 has a metering pump 1 designed in accordance with the above description for supplying the fluid via corresponding lines 25 into the working space 23.
  • the metering pump 1 is a piston pump driven by an electric motor 6 with a reciprocating piston 7.
  • the electric motor 6 has an output shaft 8 on which an eccentric 9 is arranged.
  • the eccentric 9 engages in a groove, a long groove 10, a recess o.
  • On the reciprocating piston 7 such that the rotational rotational movement of the output shaft 8 of the electric motor 6 a translational, in particular oscillating translational, lifting movement of the reciprocating piston 7 for the supply of fluid generated.
  • the metering pump 1 can be used not only in washing machines, but also for dosing systems in other household appliance sector, for example, in dishwashers, cleaning devices o. The like., Use find.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Reciprocating Pumps (AREA)

Claims (15)

  1. Pompe de dosage pour l'alimentation de détergent liquide dans une machine à laver ou un lave-vaisselle comprenant une pompe conçue comme une pompe à piston avec un piston alternatif (7), comprenant un moteur électrique (6) doté d'un arbre entraîné (8) pour l'entraînement de la pompe et un excentrique (9) coopérant avec le piston alternatif (7), disposé sur l'arbre entraîné (8), de sorte que le mouvement de rotation rotatif du moteur électrique (6) se transforme en un mouvement alternatif de translation oscillant du piston alternatif (7), caractérisée en ce que l'excentrique (9), pour coopérer avec le piston alternatif (7), vient en prise sur l'arbre entraîné (8) avec une rainure ou une rainure allongée (10) ou une encoche sur le piston alternatif (7).
  2. Pompe de dosage selon la revendication 1, caractérisée en ce que le moteur électrique (6) est constitué par un moteur synchrone.
  3. Pompe de dosage selon la revendication 1 ou 2, caractérisée en ce que la pompe à piston présente un boîtier (2).
  4. Pompe de dosage selon la revendication 3, caractérisée en ce que des guidages sont disposés dans le boîtier (2) pour le piston alternatif (7), de manière à éviter un basculement du piston alternatif (7).
  5. Pompe de dosage selon une des revendications 1 à 4, caractérisée en ce que la pompe à piston présente un clapet parapluie (14) sur son raccord d'aspiration et/ou de pression (4, 5).
  6. Pompe de dosage selon la revendication 5, caractérisée en ce que le clapet parapluie (14) est doté d'une précontrainte de clapet, de sorte que la pompe à piston puisse doser des détergents liquides tant épais que fluides.
  7. Pompe de dosage selon la revendication 5 ou 6, caractérisée en ce que le clapet parapluie (14) se trouve dans une plaque de clapet (15) disposée de manière étanche sur le boîtier (2).
  8. Pompe de dosage selon une des revendications 1 à 7, caractérisée en ce qu'une fermeture de boîtier (12) est disposée sur le boîtier (2) avec un raccord de tuyau (4, 5) correspondant au raccord d'aspiration et/ou de refoulement.
  9. Pompe de dosage selon la revendication 8, caractérisée en ce que le raccord de boîtier (12) est fixé sur le boîtier (2) au moyen de crochets d'encliquetage (13).
  10. Pompe de dosage selon la revendication 8 ou 9, caractérisée en ce qu'un couvercle (3) est disposé en regard de la fermeture de boîtier (12) sur le boîtier (2).
  11. Pompe de dosage selon une des revendications 3 à 10, caractérisée en ce que le boîtier (2) est conçu approximativement comme un cylindre.
  12. Pompe de dosage selon la revendication 11, caractérisée en ce que le moteur électrique (6) est disposé sur la surface d'enveloppe du cylindre de sorte que l'arbre entraîné (8) fasse saillie dans le boîtier (2) et/ou que l'excentrique (9) se trouve dans l'intérieur du boîtier (2).
  13. Pompe de dosage selon une des revendications 3 à 12, caractérisée en ce que le moteur électrique (6) est doté d'un capot de moteur (18) fixé sur le boîtier (2) au moyen de crochets d'encliquetage (19).
  14. Pompe de dosage selon la revendication 13, caractérisée en ce que les conduites (20) pour l'alimentation en tension électrique du moteur électrique (6) sont guidées au moyen d'un étrier (21) sur le capot de moteur (18).
  15. Appareil ménager comprenant une chambre de travail (23) et une pompe de dosage (1) pour l'amenée d'un fluide dans la chambre de travail (23), caractérisé en ce qu'une pompe à piston entraînée par un moteur électrique (6) avec un piston alternatif (7) est utilisée comme pompe de dosage (1), dans lequel le moteur électrique (6) présente un arbre entraîné (8), un excentrique (9) étant disposé sur l'arbre entraîné (8) et l'excentrique (9) venant en prise avec une rainure ou une rainure allongée (10) ou une encoche sur le piston alternatif (7) de sorte que le mouvement de rotation rotatif de l'arbre entraîné (8) du moteur électrique (6) produise un mouvement alternatif de translation oscillant du piston alternatif (7).
EP14709886.7A 2013-03-19 2014-03-11 Pompe de dosage Active EP2976528B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14709886T PL2976528T3 (pl) 2013-03-19 2014-03-11 Pompa dozująca

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013004668 2013-03-19
PCT/EP2014/000635 WO2014146761A1 (fr) 2013-03-19 2014-03-11 Pompe de dosage

Publications (2)

Publication Number Publication Date
EP2976528A1 EP2976528A1 (fr) 2016-01-27
EP2976528B1 true EP2976528B1 (fr) 2019-05-08

Family

ID=50277186

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14709886.7A Active EP2976528B1 (fr) 2013-03-19 2014-03-11 Pompe de dosage

Country Status (5)

Country Link
EP (1) EP2976528B1 (fr)
CN (1) CN105247209B (fr)
DE (1) DE102014002955A1 (fr)
PL (1) PL2976528T3 (fr)
WO (1) WO2014146761A1 (fr)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE462509C (de) * 1926-03-10 1928-07-13 John Coard Franke Verfahren zum Heben von Fluessigkeiten mittels Pumpen mit Schoepfkolben
DE3600341A1 (de) * 1986-01-08 1987-07-09 Saphirwerk Ind Prod Feindosierpumpe fuer fluessigkeiten, insbesondere zur anwendung in der hplc-technik
EP0433649A1 (fr) * 1989-11-17 1991-06-26 ASKOLL S.p.A. Pompe doseuse pour fluides
ATE464019T1 (de) * 2002-10-17 2010-04-15 Braun Gmbh Munddusche und sprühdüse zur erzeugung eines flüssigkeitsstrahls sowie zahnreinigungssystem
CN101429932A (zh) * 2004-11-29 2009-05-13 蒂埃里·那瓦罗 具有往复旋转式活塞的容积泵
CN201273255Y (zh) * 2008-08-27 2009-07-15 任正志 高压节水洗车泵
WO2010088780A1 (fr) * 2009-02-05 2010-08-12 Dopag Dosiertechnik Und Pneumatik Ag Vanne de dosage comportant un entraînement à moteur électrique
PL2479335T3 (pl) * 2011-01-19 2015-04-30 Miele & Cie Urządzenie dozujące do płynnych i lepkich dodatków do pralki oraz pralka
TWI531721B (zh) * 2011-01-25 2016-05-01 周文三 空氣壓縮機
CN202012459U (zh) * 2011-04-18 2011-10-19 严绍基 一种电动水泵
DE102011083297B3 (de) * 2011-09-23 2012-11-08 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Dosierpumpe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN105247209A (zh) 2016-01-13
CN105247209B (zh) 2019-03-08
EP2976528A1 (fr) 2016-01-27
DE102014002955A1 (de) 2014-09-25
PL2976528T3 (pl) 2019-10-31
WO2014146761A1 (fr) 2014-09-25

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