WO2015007428A1 - Piston pour pompe à armature oscillante - Google Patents

Piston pour pompe à armature oscillante Download PDF

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Publication number
WO2015007428A1
WO2015007428A1 PCT/EP2014/061578 EP2014061578W WO2015007428A1 WO 2015007428 A1 WO2015007428 A1 WO 2015007428A1 EP 2014061578 W EP2014061578 W EP 2014061578W WO 2015007428 A1 WO2015007428 A1 WO 2015007428A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
pressure
pressure piston
anchor
pump
Prior art date
Application number
PCT/EP2014/061578
Other languages
German (de)
English (en)
Inventor
Hubert Ott
Norbert Helbling
Original Assignee
Sysko Ag
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 Sysko Ag filed Critical Sysko Ag
Priority to EP14728923.5A priority Critical patent/EP3022442B1/fr
Publication of WO2015007428A1 publication Critical patent/WO2015007428A1/fr

Links

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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • 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
    • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F04B17/046—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the fluid flowing through the moving part of the motor

Definitions

  • the invention relates to a piston for a vibrating armature pump and a
  • the vibration pump The vibration pump.
  • WO 2013/004620 A1 is already a piston for a vibrating anchor pump, in particular for a household appliance with a vibrating armature pump, which is provided for conveying a fluid under the action of a back pressure, with a
  • Pressure piston element and a separate from the pressure piston element executed, for at least one direction of force fixed to the pressure piston element coupled
  • Anchor element which consists at least partially of a magnetizable material known.
  • the object of the invention is, in particular, to reduce manufacturing costs for a vibration tank pump.
  • the object is achieved by the features of the independent claims, while advantageous embodiments and modifications of the invention can be taken from the dependent claims.
  • the invention relates to a piston for an oscillating armature pump, in particular for a domestic appliance with a vibrating armature pump, which is provided for conveying a fluid under the action of a counter-pressure, with a pressure piston element and a separate from the pressure piston element, for at least one direction of force fixed to the pressure piston element coupled anchor element, which consists at least partially of a magnetizable material.
  • Pressure piston element and an anchor element “should be understood in this context, in particular an at least two-part piston, the at least one component which is provided for displacing the fluid, and a component which in the
  • Interaction with a magnetic coil is provided for generating an actuating force has.
  • firmly coupled at least in one direction of force should be understood in particular that the anchor element, at least for a direction corresponding to an actuation force that can be generated by means of the magnetic coil, rigidly with the
  • Pressure piston element is coupled.
  • the anchor element is fixedly coupled to the pressure piston element only for one direction of force.
  • pinned should be understood in contrast to pressed in particular that the
  • Pressure piston element forms a radially inwardly located within the anchor element recording, which is at least substantially provided to position the anchor member radially, whereas an axial holding force is not provided by the inner receptacle.
  • the pressure piston element for the anchor element forms a receptacle which has a direction of attachment directed along the direction of the force.
  • the anchor element can be easily mounted, since it only has to be plugged onto the receptacle formed by the pressure piston element.
  • forces acting on the anchoring element can be well supported relative to the pressure piston element, whereby in particular a high
  • a "direction of insertion directed along a direction of force” should be understood in particular to mean that the anchor element is attached to the pressure piston element during assembly along one direction, which corresponds to a direction that corresponds to a direction in operation on the piston element
  • Anchor element has attacking force.
  • the receptacle is provided at least substantially for the radial positioning of the anchor element.
  • the recording can be optimized only on the radial positioning, whereby the recording can be designed structurally simple, especially in the form of a circular cylinder.
  • a radial fit between the receptacle and the anchor element can in particular be designed such that a force that can be transmitted through the inner receptacle is smaller in the axial direction than a weight force acting on the anchor element
  • the pressure piston element has an outer contour provided for receiving the armature element and / or the armature elements has an inner contour provided for arrangement on the pressure piston element with a surface that is non-deformed in the axial direction.
  • Pressure piston element and / or manufacture of the anchor element can be simplified, as this, for example, a configuration as a deep-drawn component can be significantly simplified.
  • this assembly can be further simplified as a correct positioning of the anchor member relative to the plunger element regardless of an engagement form-fitting contours, which are hidden in the assembled state, eliminated.
  • Under a "provided for receiving the anchor element outer contour" and a “provided for arrangement on the pressure piston element inner contour" is intended in particular a shape of the pressure piston element and the
  • Anchor element in a region in which the pressure piston element and the anchor element are arranged nested in the assembled state understood.
  • the pressure piston element for the anchor element forms a stop, which is used to support one acting on the anchor element
  • Actuating force is provided.
  • a form-fitting coupling between the anchor element and the pressure piston element can be produced, as a result of which the actuating force acting on the anchor element can be easily and securely applied to the - -
  • a "stop” is to be understood in particular a shape adjacent to the receptacle for the anchor element shaping, which is at least substantially provided to provide a positive connection in the axial direction and thereby to transmit the actuation force acting on the anchor element to the pressure piston element.
  • the stop limits a Aufsteckianae for the anchor element. This allows a particularly good fixation can be achieved with easy installation.
  • the pressure piston element completely penetrates the anchor element.
  • the anchor element can be securely fixed on the pressure piston element.
  • Anchor element in at least a partial region forms an outwardly facing surface of the piston.
  • the pressure piston element is designed as an injection-molded component.
  • the pressure piston element can be produced particularly inexpensively, in particular if it has a complex geometry. In principle, however, an embodiment as a deep-drawn component is also conceivable. It is also proposed that the pressure piston element at least one
  • Pressure equalization channel has. As a result, pressure equalization can be easily established between different areas around the pressure piston element. In this case, the pressure equalization channels can be particularly easily provided in the pressure piston element when the pressure piston element has a pressure equalization channel. , ,
  • the anchor element is designed as a sheet metal bent part, which is rolled in the form of a sleeve.
  • the anchor element can be easily provided with any, in particular larger, inner diameter and / or outer diameter, without thereby increasing a Materialauschuss.
  • the anchor element can be provided with a Au DT micr at a low additional cost, which is greater than an Au DT matmesser comparable piston.
  • Oscillating tank pump can be lowered.
  • a sleeve is intended in particular a substantially hollow cylindrical configuration of the
  • Anchor element can be understood, the anchor element basically in the form of a longitudinally slotted sleeve as well as in the form of a closed, for example
  • a design as a "bending component” is to be understood in particular as meaning that the anchor element is formed by forming a semifinished product by exerting on the semifinished product a plastic deformation force which brings about a permanent deformation. which is produced by forming by means of a die, through which a blank is pressed, such as a seamless tube.
  • Rolled is to be understood in particular as meaning that the anchor element is formed from a sheet which is provided along a transverse extension direction with a substantially equal curvature over an entire circumference, whereby the anchor element after its formation in a cross section in the form of a circular ring segment is formed having a circumferential extension of at least 270 °, preferably at least 315 0 and particularly preferably of at least approximately 360 0th is intended to mean in particular under "almost 360 °” means that the remaining after the rolling longitudinal slot along a longitudinal axis of the Anchor element runs, an angle smaller than - -
  • Anchor element are related.
  • an oscillating piston pump in particular for a household appliance, with a magnetic coil and a piston, a pressure piston element for conveying a fluid and a separate from the plunger element executed, at least one force direction fixed to the plunger element coupled anchor element in the form of a sleeve which at least Partially made of a magnetizable material, has, in particular with a piston according to one of the preceding claims, proposed, wherein the magnetic coil has a coil diameter which is at most by a factor of 3.0 greater than an Au dated
  • Anchor element By the coil diameter is at most a factor of 3.0 larger than the outer diameter of the anchor member, a particularly good coupling can be achieved, whereby a number of windings of the magnetic field coil can be reduced. As a result, in particular copper for producing the magnetic field coil can be saved, whereby costs can be reduced. In addition, a better cooling of the solenoid can be achieved with the enlarged coil diameter, which can be provided for a coffee machine, a vibrating piston pump, which can provide a nearly constant pumping power even with a rapidly consecutive number of coffee purchases, especially as a temperature increase and thus an increase an inner one
  • Resistance of the oscillating armature pump can be kept low by the improved cooling.
  • the factor is higher than 3.0.
  • the factor can also be smaller, in particular if the oscillating piston pump is designed as a high-pressure pump, where the factor can be, for example, less than 2.7 or less than 2.5. Under a
  • Coil diameter should in particular a Au .
  • Coil housing can be understood.
  • a “coil housing” is to be understood in particular a preferably cylindrical housing of the magnetic coil, which - -
  • Copper windings of the coil encloses. Basically, between the
  • Copper windings and the coil housing an air gap can be provided.
  • the coil housing is formed by the
  • a "low-pressure pump” is to be understood here in particular as an oscillating piston pump which is intended to provide a pressure of at most 5 bar, preferably at most 3 bar.
  • Hg a longitudinal section through a vibration pump
  • Hg 4 a pressure piston element of the piston in a longitudinal section
  • Hg 5 is a plan view of the pressure piston element with attached
  • FIG. 6 shows a longitudinal section through an oscillating armature pump in alternative
  • the piston guide 38a is executed in the illustrated embodiment separately from the coil housing 19a.
  • the piston guide 38a itself can be multi-part - -
  • the pump spring 20a is supported between the piston guide 38a fixedly connected to the coil case 19a and the piston 10a.
  • the magnetic coil 18a is energized with a pulse-shaped voltage, whereby adjusts a constantly changing magnetic field in the region of the pump interior.
  • the pulsed magnetic field in turn causes the piston 10a is first deflected with increasing strength of the magnetic field from its rest position against the force of the pump 20a. If the magnetic field is maximum, the piston 10a is also deflected to the maximum. As soon as a current through the magnet coil 18a is reduced, and thus the strength of the magnetic field drops again, the piston 10a is again moved in the direction of the rest position by the force of the pump 20a.
  • the magnetic coil 18a is preferably connected upstream of a diode unit, whereby the magnetic coil 18a only with a half-wave of a - -
  • the piston 10 a When the piston 10a is mounted, the pump interior forms an antechamber 23a and a compression chamber 24a.
  • the piston 10 a comprises a piston valve 25 a, which is fluidically arranged between the prechamber 23 a and the compression chamber 24 a.
  • the piston valve 25a is in the form of a check valve which has a passage direction from the prechamber 23a into the compression chamber 24a.
  • a filling stroke in which the piston 10a is moved by the magnetic field against the force of the pump 20a
  • fluid flows from the prechamber 23a through the piston valve 25a into the compression chamber 24a.
  • a subsequent pressure stroke In a subsequent pressure stroke in which the piston 10a is moved by the force of the pump 20a, the fluid is forced out of the compression chamber 24a.
  • the maximum pressure which acts on the fluid depends in particular on the force of the pump 20a.
  • a way by which the piston 10 a is moved depends on a configuration of
  • the anchor element 12a and the pressure piston element 1 1 a are fixedly coupled together for a force direction.
  • the anchor element 12a is designed in the form of a sleeve and is made entirely of the magnetizable material.
  • the pressure piston element 1 1 a is made entirely of a non-magnetic material.
  • the magnetic field and thus the actuating force, which can be adjusted by means of the magnetic coil 18 a, thus acts in particular on the armature element 12 a, which for the force direction, that of the.
  • the pressure piston element 1 1 a protrudes in the rest position into the compression chamber 24a.
  • the pressure piston element 1 1 a is moved out of the rest position.
  • the pressure piston element 11a displaces the fluid from the compression chamber 24a.
  • the compression chamber 24a has a
  • Magnetic field coil can be exerted on the anchor element 12a.
  • the force which is necessary for plugging is in particular also smaller than the force exerted by the pump 20a in the basic position on the pressure piston element 1 1 a.
  • the receptacle for the anchor element 12a may be subject to play.
  • the pressure piston element 1 1 a forms a receptacle for the anchor element 12 a, the one along the direction of force, in which the anchor element 12 a fixed to the
  • Pressure piston element 1 1 a is coupled, directed mounting direction.
  • the receptacle receives the anchor element 12a without play. Tolerances in the production of the
  • the pressure piston element 11a has an outer contour which forms the receptacle of the anchor element 12a and has a surface which is free from form-fitting in the axial direction (cf., FIG. 4).
  • the anchor element 12 a has an arrangement on the
  • the stop 31 a limits a Aufsteckianae for the anchor element 12a. With respect to the recording of the stop 31 a in the form of a step is formed, which projects radially beyond the receptacle.
  • the anchor member 12a has an end face which rests in the assembled state on a form-fitting manner on the stop 31a.
  • the pressure piston element 1 1 a passes through the anchor element 12a completely. Basically that is - -
  • Pressure piston element 1 1 a subdivided into three sections. The first one forms
  • Subsection which on the side facing the antechamber 23a, projects beyond the anchor member 12a, the stopper 31 a.
  • the second subsection in which the pressure piston element 1 1 a passes through the anchor element 12, forms the receptacle.
  • the third subsection which projects beyond the anchor element 12a on the side facing the compression chamber 24a, is in particular for the arrangement of the
  • the pressure piston element 1 1 a is formed as a plastic part. As a plastic while a temperature-resistant thermoplastic is used.
  • the pressure piston element 1 1 a can in principle be produced by means of a deep-drawing process.
  • the prechamber 23a is characterized by the arrangement of the
  • Anchor member 12a a front part and a rear part, which are connected in parallel by the pressure equalization channels 15a, 16a, 17a. In the front part while the pump 20a is arranged. In the back part is a
  • the delivery channel 32 a is formed in the form of a bore which the
  • the sealing element 26a is bent inwardly at its end facing the pre-chamber 23a and forms a clamp. In the assembled state, the clamp formed by the sealing element 26a engages in the undercut and connects the
  • Sealing element 26a and the pressure piston element 1 1 a captive with each other.
  • the sealing element 26a is flanged around the pressure piston element 11a.
  • the piston valve 25a which is connected to the pressure piston element 11a, closes sealingly with the sealing element 26a.
  • the anchor member 12a is thereby axially fixed between the formed by the pressure piston member 1 1 a stop 31 a and the housing stop 33a.
  • the actuating force generated by means of the magnetic coil 18a engages the armature element 12a.
  • the anchor member 12 a is thereby pressed against the stopper 31 a, whereby it is axially fixed.
  • the fluid which is in the prechamber 23a is redistributed between the rear part and the front part of the prechamber 23a via the pressure equalizing passages 15a, 16a, 17a.
  • a resulting pressure difference acts at least partially on the anchor member 12 a and braces it against the stop 31 a of the
  • Pressure piston element 1 1 a is due to its - -
  • the anchor element 12a has an inner diameter of 14 mm and an outer diameter of 20 mm.
  • the solenoid 18a has a coil diameter of 47 mm, i. a maximum diameter of the coil housing 19a surrounding the magnetic coil 18a is 47 mm. The coil diameter is thus larger by a factor of 2.35
  • the armature element 12a and the magnet coil 18a of the oscillating armature pump have a different dimension.
  • the anchor element 12a then has an inner diameter of 9 mm and an outer diameter of 13 mm.
  • the sheet from which the anchor element 12a is formed thus has a thickness of 2 mm.
  • the magnet coil 18a has a coil diameter of 32.5 mm in such an embodiment. The coil diameter is then larger by a factor of 2.5 than the outer diameter of the armature element 12a, and thus smaller than 3.0.
  • FIG. 6 shows a further exemplary embodiment of the invention.
  • FIG. 6 shows an oscillating armature pump with a magnetic coil 18b and a piston 10b, which is provided for conveying a fluid under the effect of a counter-pressure.
  • the piston 10b has a pressure piston element 11b and an armature element 12b which is designed to be separate from the pressure piston element 11b.
  • the anchor element 12b is for a
  • the anchor element 12b is designed in the form of a sleeve and consists of a magnetizable material.
  • the anchor member 12b is formed as a bending member.
  • the anchor element 12b is formed from a sheet metal, which is made in two parts.
  • the armature element 12b has an inner sheet metal element 13b and an outer sheet metal element 14b.
  • Sheet metal element 13b is disposed within the outer sheet metal element 14b.
  • the two sheet metal elements 13b, 14b are first firmly connected to each other, for example, by beads, which are introduced into the sheet metal elements 13b, 14b after they were placed on each other.
  • the sheet metal elements 13b, 14b can also be connected to one another in a material-locking manner.
  • the two interconnected sheet metal elements 13b, 14b then form the sheet, which is rolled to form it as the anchor element 12b in the form of a sleeve.
  • the inner sheet metal element 13b and the outer sheet metal element 14b have different axial lengths.
  • the inner plate member 13b and the outer plate member 14b terminate in the same plane.
  • the outer sheet metal element 14b is in the axial direction via the inner sheet metal element 13b over.
  • the anchor element 12b thereby has two partial regions with different
  • the piston 10b is movable beyond a rest position due to its inertia.
  • the oscillating armature pump has, in addition to the pump 20b, a damping spring 34b, which counteracts the pumping of the piston 20b.
  • the one subregion in which the material thickness is greater is provided in particular for guiding the magnetic field of the magnetic coil 18b.
  • the other portion forms a receptacle for the damping spring 34b.
  • the side of the anchor element 12b, on which the two sheet metal elements 13b, 14b terminate in the same plane, serves for the positive connection with the pressure piston element 11b.
  • Sheet metal element 14b projects beyond the inner sheet metal element 13b, forms the receptacle for the damping spring 34b.
  • the outer sheet metal element 13b surrounds the damping spring 34b, which is guided radially through the pressure piston element 11b.
  • the damper spring 34b is axially supported between the inner plate member 13b and a piston guide 38b fixedly connected to a coil case 19b of the vibration pump.
  • the outer sheet metal element 14b can project beyond the inner sheet metal element 13b.
  • a supernatant is preferably at most half as large as the material thickness of both sheet metal elements 13b, 14b together.
  • the supernatant is preferably about 1 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

L'invention concerne un piston destiné à une pompe à armature oscillante, en particulier à un appareil électroménager pourvu d'une pompe à armature oscillante, ce piston étant conçu pour refouler un fluide sous l'action d'une contrepression et étant pourvu d'un élément piston de compression (11a; 11b) et d'un élément armature (12a; 12b) séparé de l'élément piston de compression (11a; 11b) et accouplé solidement avec ce dernier pour au moins une direction de force, l'élément armature (12a; 12b) étant constitué au moins partiellement d'un matériau magnétisable. Selon l'invention, l'élément armature (12a; 12b) est emboîté sur l'élément piston de compression (11a; 11b).
PCT/EP2014/061578 2013-07-15 2014-06-04 Piston pour pompe à armature oscillante WO2015007428A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14728923.5A EP3022442B1 (fr) 2013-07-15 2014-06-04 Piston pour une pompe à armature oscillante

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013107482.0A DE102013107482A1 (de) 2013-07-15 2013-07-15 Kolben für eine Schwingankerpumpe
DE102013107482.0 2013-07-15

Publications (1)

Publication Number Publication Date
WO2015007428A1 true WO2015007428A1 (fr) 2015-01-22

Family

ID=50897596

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/061578 WO2015007428A1 (fr) 2013-07-15 2014-06-04 Piston pour pompe à armature oscillante

Country Status (3)

Country Link
EP (1) EP3022442B1 (fr)
DE (1) DE102013107482A1 (fr)
WO (1) WO2015007428A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288216A1 (fr) * 1987-04-15 1988-10-26 Eaton S.A.M. Pompe électrique à liquides
WO2000061946A1 (fr) * 1999-04-09 2000-10-19 Ulka Srl Piston composite pour pompe vibrante
DE202005006584U1 (de) * 2004-06-28 2005-08-04 Chwan Jhe Enterprise Co., Ltd., Yung Kang Zusammengesetzter Kolben für eine Hubkolbenpumpe mit elektromagnetischer Induktion
DE202011050598U1 (de) * 2011-07-01 2012-10-09 Wik Far East Ltd. Flüssigkeitspumpe

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6606046U (de) * 1968-03-26 1970-07-30 Fritz Georg Elektromagnetische kolbenpumpe
US3947788A (en) * 1974-09-03 1976-03-30 Spencer C. Schantz Solenoid
US4749343A (en) * 1986-08-08 1988-06-07 Facet Enterprises, Inc. High pressure fluid pump
CS273485B1 (en) * 1988-10-20 1991-03-12 Stanislav Kucera Electromagnetic piston pump
DE3904448A1 (de) * 1989-02-15 1990-08-16 Bosch Gmbh Robert Magnetanker
BRPI0419022B1 (pt) * 2004-08-30 2016-12-13 Lg Electronics Inc aparelho e método para controlar um compressor linear
WO2011029577A1 (fr) * 2009-09-09 2011-03-17 Rudolf Lonski Pompe à armature oscillante
WO2013004620A1 (fr) 2011-07-01 2013-01-10 Wik Far East Ltd. Pompe à piston alternatif à entraînement magnétique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288216A1 (fr) * 1987-04-15 1988-10-26 Eaton S.A.M. Pompe électrique à liquides
WO2000061946A1 (fr) * 1999-04-09 2000-10-19 Ulka Srl Piston composite pour pompe vibrante
DE202005006584U1 (de) * 2004-06-28 2005-08-04 Chwan Jhe Enterprise Co., Ltd., Yung Kang Zusammengesetzter Kolben für eine Hubkolbenpumpe mit elektromagnetischer Induktion
DE202011050598U1 (de) * 2011-07-01 2012-10-09 Wik Far East Ltd. Flüssigkeitspumpe

Also Published As

Publication number Publication date
EP3022442B1 (fr) 2019-10-02
DE102013107482A1 (de) 2015-01-15
EP3022442A1 (fr) 2016-05-25

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