EP2534995A1 - Déclencheur hydrique - Google Patents

Déclencheur hydrique Download PDF

Info

Publication number
EP2534995A1
EP2534995A1 EP20110004954 EP11004954A EP2534995A1 EP 2534995 A1 EP2534995 A1 EP 2534995A1 EP 20110004954 EP20110004954 EP 20110004954 EP 11004954 A EP11004954 A EP 11004954A EP 2534995 A1 EP2534995 A1 EP 2534995A1
Authority
EP
European Patent Office
Prior art keywords
water
distribution element
ramp portion
angular position
water distribution
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.)
Withdrawn
Application number
EP20110004954
Other languages
German (de)
English (en)
Inventor
Klaus-Peter Holstein
Adalbert Kapser
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.)
Etimex Technical Components GmbH
Original Assignee
Etimex Technical Components 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 Etimex Technical Components GmbH filed Critical Etimex Technical Components GmbH
Priority to EP20110004954 priority Critical patent/EP2534995A1/fr
Priority to US13/495,337 priority patent/US20120318389A1/en
Publication of EP2534995A1 publication Critical patent/EP2534995A1/fr
Withdrawn legal-status Critical Current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
    • A47L15/4219—Water recirculation
    • A47L15/4221—Arrangements for redirection of washing water, e.g. water diverters to selectively supply the spray arms
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit

Definitions

  • the present invention relates generally to a water switch of a water-bearing appliance, in particular a domestic appliance, including at least one water supply path, several water discharge paths and an adjustable water distribution element, the water distribution element having at least one passage opening and being rotatable around an axis from a first angular position to a second angular position, in the first angular position the at least one passage opening connecting the at least one water supply path to a first water discharge path, and in the second angular position the at least one passage opening connecting the at least one water supply path to a second water discharge path.
  • Water switches also called fluid switches or water diverters, are used in water-bearing appliances, in particular domestic water-bearing appliances, such as washing machines or dishwashers, to control flows of liquid in the water-bearing appliance.
  • water switches serve to dispense washing or rinsing water for example to a first or second detergent compartment of two detergent compartments.
  • water switches serve to dispense washing water, also referred to as washing liquor, for example alternately to a spray arm for an upper rack or to a spray arm for a lower rack of the respective dishwasher or simultaneously to both spray arms.
  • a water switch is known to include a rotatable control slider which is provided in a cylindrical housing, connecting a supply channel to one of a number of discharge channels by means of a swivel tube.
  • the swivel tube has a rotating pin disposed in a socket of the supply channel in the likeness of a ball and socket joint.
  • a sealing element in the likeness of a hollow cylinder is secured to the mouth of the swivel tube opposite the discharge channels and slides in a cylindrical guide running concentrically to the outer surface of the housing.
  • Another water switch known from DE-A-10133130 includes a rotating slider disposed in a pressure chamber of a circulating pump before branching pressure connections.
  • the water switch blocks and releases the pressure connections for washing liquid.
  • a gear drive for the rotating slider is arranged outside and inside the pressure chamber.
  • the rotating slider in question is formed by a cylindrical component, in the cylindrical wall of which one or more apertures are located between one and a number of movable closing elements with a valve function.
  • the apertures and the closing elements are configured in their relative position to the pressure connections, which form the water supply and/or water discharge connections, such that depending on the rotation of the rotating slider, the pressure connections opposite its cylinder wall are released or blocked in a sealing manner.
  • a water switch of a water-bearing appliance in particular a domestic appliance, is provided, the water switch including at least one water supply path, several water discharge paths and an adjustable water distribution element, the water distribution element having at least one passage opening and being rotatable around an axis from a first angular position to a second angular position, in the first angular position the at least one passage opening connecting the at least one water supply path to a first water discharge path, and in the second angular position the at least one passage opening connecting the at least one water supply path to a second water discharge path.
  • a guiding mechanism is provided for guiding an axial movement along the axis of the water distribution element when the water distribution element rotates from the first angular position to the second angular position.
  • the axial movement of the water distribution element takes place while the water switch is unpressurized. ln order to prevent the water distribution element from moving back after its rotation from one angular position to the next angular position, in particular, a reverse-look is provided.
  • the water distribution element may serve to connect one or several water supply paths to one or several different water discharge paths and/or to interconnect several water discharge paths.
  • the guiding mechanism includes at least one cylindrical portion being guided in a respective tubular portion surrounding the at least one cylindrical portion, and/or wherein further, in particular, the at least one cylindrical portion is connected to an armature of an associated magnetic coil.
  • the water distribution element is disk shaped and extends perpendicular to the axis, and/or wherein further, in particular, the cylindrical portion and/or the armature extend along the axis.
  • the guiding mechanism includes at least one first ramp portion sliding along a respective second ramp portion during the axial movement of the water distribution element, the pair of a first ramp portion and a respective second ramp portion thereby generating a torque for rotating the water distribution element from the first angular position in the direction to the second angular position.
  • first ramp portion and a respective second ramp portion are circumferentially distributed, and in particular, evenly circumferentially distributed, around a cylindrical portion of the guiding mechanism.
  • the number of pairs of a first ramp portion and a respective second ramp portion equals the number of water discharge paths.
  • the number of pairs of a first ramp portion and a respective second ramp portion is larger than the number of water discharge paths, whereby at least at one angular position of the water distribution element the respective water discharge is closed.
  • At least one first pair of a first ramp portion and a respective second ramp portion and at least one second pair of a first ramp portion and a respective second ramp portion are located on two opposite faces of the water distribution element.
  • Each of the two pairs of a first ramp portion and a respective second ramp portion generates a part of the necessary torque for moving the water distribution element along its travel from the first angular position to the second angular position.
  • the at least one first pair of a first ramp portion and a respective second ramp portion at one face of the water distribution element generates about one half of the rotary movement of the water distributing element
  • the at least one second pair of a first ramp portion and a respective second ramp portion at the opposite face of the water distribution element generates about the second half of the rotary movement of the water distributing element
  • the guiding mechanism includes a spring, in particular a helical spring, biasing the water distribution element in the direction of the several water discharge paths, and/or wherein further, in particular, the spring surrounds a cylindrical portion of the guiding mechanism.
  • the water switch apparatus can be switched with very low expenditure of energy, because the water distribution element associated therewith does not only rotate from a first angular position to at least one second angular position but also does an axial movement during this rotational movement. With this axial movement the water distribution element can be lifted off a sealing element located at the passage opening of the water distribution element.
  • the sealing element helps providing a water tight passageway through the water switch. Further, the sealing element is suitable for sealing a water passage opening which extends through a flat rotating disk in respect to water discharge lines opposite said flat rotating disk. This water switch according to the invention is even suitable for sealing openings provided in a cylinder wall.
  • the water switch does not produce an unwanted high pressure loss in the water flow to be distributed in each instance due to only very low deflection within the water distribution element and the flow paths connected therewith.
  • the water switch provides the possibility to connect a very large number of water discharge paths.
  • a water tight seal is easily provided against all of the water discharge paths not being connected to the water supply path.
  • a water switch 10 for a water-bearing appliance in particular a domestic appliance, includes the main structural members of a magnetic coil 12, an upper housing portion 14, a spring 16, a water distribution element 18 and a lower housing portion 20.
  • the magnetic coil 12 is fitted on top of the upper housing portion 14, while the spring 16 and the water distribution element 18 are mounted in the hollow space provided by the upper housing portion 14 and the lower housing portion 20.
  • the spring 16 is formed as a helical spring, is located between the upper housing portion 14 and the water distribution element 18 and thereby biases the water distribution element 18 against the lower housing portion 20.
  • the magnetic coil 12 has a first connector pin 22 and a second connector pin 24 both protruding in a lateral direction at the upper rim of the magnetic coil 12.
  • the first and second connector pins 22 and 24 are for connecting an electrical plug (not shown) and for supplying current to the magnetic coil 12.
  • the current supplied flows through a wire-wound coil (not shown) which is located within a cylindrical hollow body 26 of the magnetic coil 12.
  • the magnetic coil 12 is a standardized structural element which is produced in large scale manufacture. Thus, the magnetic coil 12 can be produced very cost-effective.
  • the upper housing portion 14 which is shown in detail in Fig. 8 to 10 , is made of plastic or another synthetic material by an injection molding process. It has the shape of a round, in particular circular disc from which a water supply path 28 in the form of a supply connection tube is projecting radially at the outer range thereof.
  • the water supply path 28 leads to an approximately circular channel 30 which is located at the inner side of this disc-shaped housing shell of the upper housing portion 14.
  • a cylindrical housing portion 32 protrudes to the outside along a central axis of the disc (not figured).
  • the cylindrical housing portion 32 forms a tubular portion for pinning up the cylindrical hollow body 26 thereon and for accommodating a portion of the water distribution element 18 therein, as will be explained in further detail hereinafter.
  • a snap-in pin 34 protrudes from the disk.
  • the snap-in pin 34 is adapted to embrace the cylindrical hollow body 26 in order to hold the magnetic coil 12 on the cylindrical housing portion 32.
  • Two notches 36 project radially at one of two diametrical positions of the outer range of the disk-shape housing shell. These notches 36 are provided for a watertight connection of the lower housing portion 20 to the upper housing portion 14 as it is shown in Fig. 2 .
  • first ramp portions 38 and adjacent first recess portions 40 are surrounding the cylindrical housing portion 32 at the inner center of the housing shell of the upper housing portion 14.
  • Each ramp portion 40 is made of a ramp surface 42 which is skewed relative to said axis.
  • the ramp surface 42 is positioned in an angel relative to the axis of about 40 degrees to 60 degrees, preferably 50 degrees.
  • the ramp surface 42 terminates at a ramp edge 44, which is formed by a smaller and steeper counter ramp 46.
  • the ramp edge 44 is rather dull.
  • the first recess portions 40 are limited by parallel sidewalls forming a type of slot into which a second ramp portion facing the first ramp portion can be inserted, as will be explained later.
  • the water distribution element 18 is shown in detail in Fig. 11 to 15 . It is made of plastic or synthetic materials, too.
  • the water distribution element 18 is formed like a circular disc, which has eight water distribution positions 48 on its disk-face. The water distribution positions 48 are located with equal distances along a circle on the face. One of the water distribution positions 48 is open, including a passage opening 50 which permeates the disk. The seven remaining water distribution positions 48 are closed.
  • a sealing ring 52 is provided at the lower side of the disk of the water distribution element 18.
  • One of these sealing rings 52 is located at a margin 54 of the passage opening 50.
  • the other sealing rings 52 are fixed to the disk by means of pins 56 protruding through respective openings in the disk.
  • a first cylindrical portion 58 protrudes at the central area of the disk-shape and carries a rod-shaped armature 60 made from iron or ferro-magnetic material.
  • the armature 60 elongates the first cylindrical portion 58 along the axis. When mounting the water distribution element 18 into the upper housing portion 14, the armature 60 dives into the cylindrical housing portion 32 and into the cylindrical hollow body 26 of the magnetic coil 12.
  • Second ramp portions 62 and adjacent recess portions 64 are surrounding the first cylindrical portion 58. These second ramp portions 62 are also formed by ramp surfaces sloping relative to the axis with an angel of between 40 degrees and 60 degrees, preferably of 50 degrees, a respective ramp edge and an associated smaller counter ramp. The ramp surfaces of the second ramp portions 62 are positioned in a manner for sliding along the ramp surfaces 42 of the first ramp portions 38 when the water distribution element 18 moves in an axial direction, and further for diving into the respective first recess portions 40 after the ramp surfaces have left the phase of sliding contact.
  • Two latches 68 are located in a tangential manner at two diametrical positions of an outer margin 70 of the disk-shape of the water distribution element 18. These latches 68 help to ensure that the water distribution element 18 can only rotate on one direction.
  • a guiding pin 72 projects axially and forms a second cylindrical portion.
  • the guiding pin 72 has longitudinal slots 74 on this lateral surface which also leads into the first cylindrical portion 58 and into the armature 60 providing further water compensation.
  • the second cylindrical portion formed by the guiding pin 72 is surrounded by eight first ramp portions 76 and adjacent first recess portions 78. These ramp portions 76 and recess portions 78 correspond to those first ramp portions 38 and first recess portions 40 mentioned above, but they are offset in the circumferential direction by nearly the angular width of the first ramp portions 38.
  • the cupular lower housing portion 20 is depicted in further detail in Fig. 5 to 7 . It is also made of plastic or another synthetic material by injection molding and includes a sealing edge or sealing ring 80 at its upper circular edge. Two notch catchers 82, each for clamping one of the notches 36, project radially at two diametrical positions of the outer sidewall of the lower housing portion 20.
  • the bottom of the lower housing portion 20 provides eight water discharge positions 84 located with equal distances along a circle on the inner face of the bottom. One position 86 of these water discharge positions 84 is closed; the remaining seven positions are open. They have respective water discharge paths 88 in the form of a discharge connection tube connected therewith.
  • latch ramps 90 are formed at the inner surface of the sidewall of the cup-shaped or cupular lower housing portion 20 . These latch ramps 90 are designed so that the latches 68 of the water distribution element 18 can slide along.
  • a guiding cylinder 92 accommodates the guiding pin 72 and projects in the center of the bottom to the outside of the lower housing portion 20. At the center of the inside of the bottom eight second ramp portions 94 and adjacent second recess portions 96 surround the opening leading into the guiding cylinder 92.
  • the magnetic coil 12 pulls the armature 60 and the water distribution element 18 connected therewith in the direction of the upper housing portion 14 and biases the spring 16.
  • the first ramp portions 38 and the second ramp portions 62 contact each other and start to work as a guiding mechanism by sliding along each other.
  • the sliding process provides a torque which starts to rotate the water distribution element 18 from its starting first angular position to the direction of a next second angular position. These positions are those of the water distribution positions 48 mentioned above.
  • the sliding of the ramp portions 38 and second ramp portions 62 provide half of the travel from the first angular position to the second angular position.
  • the second half of the travel is provided, when the magnetic coil 12 stops pulling the armature 60 and the spring 16 pushes the water distribution element 18 back along the axis in its previous axial position. While moving back axially, the first ramp potions 76 now come into contact with the second ramp portions 94 in order to slide along each other and in order to turn the water distribution element 18 further along the second half of the travel.
  • the sealing rings 52 come into contact with respective water discharge paths 88 again. While seven of the discharge paths are closed by means of the water distribution element 18 in this manner, one path through the passage opening 50 is open.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Multiple-Way Valves (AREA)
EP20110004954 2011-06-17 2011-06-17 Déclencheur hydrique Withdrawn EP2534995A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20110004954 EP2534995A1 (fr) 2011-06-17 2011-06-17 Déclencheur hydrique
US13/495,337 US20120318389A1 (en) 2011-06-17 2012-06-13 Water switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20110004954 EP2534995A1 (fr) 2011-06-17 2011-06-17 Déclencheur hydrique

Publications (1)

Publication Number Publication Date
EP2534995A1 true EP2534995A1 (fr) 2012-12-19

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ID=45446271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110004954 Withdrawn EP2534995A1 (fr) 2011-06-17 2011-06-17 Déclencheur hydrique

Country Status (2)

Country Link
US (1) US20120318389A1 (fr)
EP (1) EP2534995A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106151592A (zh) * 2015-04-13 2016-11-23 青岛海尔洗碗机有限公司 一种分水阀组件及洗碗机
WO2017218113A1 (fr) * 2016-06-17 2017-12-21 Illinois Tool Works Inc. Système d'alimentation sélective en liquide de divers agencements de buses, et lave-vaisselle comprenant un tel système

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GB2506227B (en) * 2012-09-19 2015-07-29 Lg Electronics Inc Dishwasher
EP2786691B1 (fr) 2013-04-05 2020-01-15 Samsung Electronics Co., Ltd. Lave-vaisselle
KR102110535B1 (ko) * 2013-06-14 2020-05-13 엘지전자 주식회사 세탁기
US9307886B2 (en) * 2013-10-10 2016-04-12 General Electric Company Indexing passive diverter for an appliance
US9259137B2 (en) * 2013-11-06 2016-02-16 General Electric Company Mid-level spray arm assembly for dishwasher appliances
US10113654B2 (en) * 2015-01-27 2018-10-30 Haier Us Appliance Solutions, Inc. Water diverter assembly for a dishwashing appliance
US9795271B2 (en) 2015-07-31 2017-10-24 Haier Us Appliance Solutions, Inc. Variable position hydraulically actuated diverter for an appliance
US9737191B2 (en) 2015-09-10 2017-08-22 Haier Us Appliance Solutions, Inc. Variable position diverter for an appliance
US9743822B2 (en) 2015-09-10 2017-08-29 Haier Us Appliance Solutions, Inc. Variable position diverter for an appliance
US9980624B2 (en) 2015-09-15 2018-05-29 Haier Us Appliance Solutions, Inc. Variable position diverter for an appliance
US10206553B2 (en) 2016-09-27 2019-02-19 Haier Us Appliance Solutions, Inc. Hydraulically actuated diverter for an appliance
US10512387B2 (en) * 2016-09-30 2019-12-24 Haier Us Appliance Solutions, Inc. Hydraulically actuated diverter for an appliance
CN106917238B (zh) * 2017-04-28 2023-10-13 无锡小天鹅电器有限公司 洗衣机
US10779704B2 (en) 2018-01-03 2020-09-22 Haier Us Appliance Solutions, Inc. Dishwasher appliance having an integrated diverter
CN112900021B (zh) * 2019-12-04 2023-12-22 博西华电器（江苏）有限公司 家用电器
CN215257991U (zh) * 2021-05-31 2021-12-21 南昌科勒有限公司 切换阀

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DE10133130A1 (de) 2001-07-07 2003-01-16 Miele & Cie Umwälzpumpe mit/ohne Heizungseinrichtung
EP1469118A2 (fr) * 2003-04-16 2004-10-20 FAGOR, S.Coop Distributeur hydraulique pour une machine à laver
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106151592A (zh) * 2015-04-13 2016-11-23 青岛海尔洗碗机有限公司 一种分水阀组件及洗碗机
CN106151592B (zh) * 2015-04-13 2019-05-17 青岛海尔洗碗机有限公司 一种分水阀组件及洗碗机
WO2017218113A1 (fr) * 2016-06-17 2017-12-21 Illinois Tool Works Inc. Système d'alimentation sélective en liquide de divers agencements de buses, et lave-vaisselle comprenant un tel système

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