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WO2011144558A1 - Machine à laver dans laquelle le chargement non équilibré est équilibré - Google Patents

Machine à laver dans laquelle le chargement non équilibré est équilibré Download PDF

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Publication number
WO2011144558A1
WO2011144558A1 PCT/EP2011/057854 EP2011057854W WO2011144558A1 WO 2011144558 A1 WO2011144558 A1 WO 2011144558A1 EP 2011057854 W EP2011057854 W EP 2011057854W WO 2011144558 A1 WO2011144558 A1 WO 2011144558A1
Authority
WO
WIPO (PCT)
Prior art keywords
drum
water
valve
washing machine
tub
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.)
Ceased
Application number
PCT/EP2011/057854
Other languages
English (en)
Inventor
Ali Levent Hasanreisoglu
Osman Cengiz
Onur Yaman
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Priority to EP11733598.4A priority Critical patent/EP2572027B1/fr
Publication of WO2011144558A1 publication Critical patent/WO2011144558A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
    • D06F37/225—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets

Definitions

  • the present invention relates to a washing machine wherein the unbalanced load inside the drum is balanced by using water.
  • the washing process is performed by the drum being rotated at different speeds. While the drum is being rotated, an uneven load distribution occurs as a result of the laundry piling up at some areas. Especially in the spin-drying step wherein the drum is rotated at high speeds, the unbalanced load resulting from the laundry and structural factors increases vibration and noise, and causes the washing machine to wear out. Furthermore, the spin-drying performance of the washing machine is adversely affected.
  • water taken from the outside for the balancing operation is generally transferred to the chambers on the drum baffles by being passed through the hub of the drum and the tub where the shaft rotating the drum is supported. Water taken from the mains is delivered to the slots between the sealing elements placed in a sequence at the hub portion wherein the shaft is supported.
  • JP2002136792 an additional grooved element is described which bears against the shaft bearing and which provides water to be transferred to the baffles on the drum by being directed when there is unbalanced load. This additional element does not rotate and the water in the groove is delivered to the baffles while the shaft bearing rotates by means of a channel.
  • the aim of the present invention is the realization of a washing machine wherein the unbalanced load in the drum is balanced precisely by using water.
  • the washing machine realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises at least one baffle which has two balancing chambers at the front and rear thereof into which water is delivered in order to balance the unbalanced load occurring in the drum and at least one multiple-way valve rotating together with the drum, having an inlet channel and more than one outlet channel, directing water received from the inlet channel to the desired balancing chambers by means of the outlet channels.
  • Water taken from the mains for the balancing process in the washing machine is transferred to the tub hub where the shaft rotating the drum is supported by means of the water inlet line which is stationary together with the tub.
  • the hub of the tub is concentrically surrounded by a housing located at the drum rear wall.
  • the ring-shaped gaskets rotating together with the housing are placed in sequence between the hub and the housing, and the slots are disposed between the gaskets.
  • the inlet channel of the valve is connected to the slot and the outlet channels are connected to the balancing chambers by means of the distribution lines, and more than one balancing chamber at one baffle is supplied from the same slot by means of the multiple-way valve.
  • the valve is of electromagnetic-type and comprises a body on which the inlet channel and the outlet channels are disposed and a piston-type magnet which closes one outlet channel by moving therein and which allows water discharge from the other outlet channel.
  • the washing machine comprises at least one magnetic coil which is mounted onto the rear wall of the tub so as to be opposite to the valve, which is stationary together with the tub, which has no mechanical connection with the valve, which is magnetized by the control unit applying electric current and which triggers the valve by means of the magnetic field it produces.
  • the washing machine comprises more than one valve which is connected to the periphery of the housing on the drum rear wall and which rotates by following a circular course with the rotation of the drum and a single magnetic coil which is connected to the tub rear wall, which is stationary together with the tub and which is commonly used by all the valves.
  • the washing machine comprises a preferably "hall effect” type position sensor which is placed near the magnetic coil at the rear wall of the tub and which detects if the valves are aligned with the magnetic coil during their rotation together with the drum in the tub.
  • the position sensor produces different voltage values for each valve rotating by following the same course in order to distinguish the valves from each other and thus gives the control unit the information as to which valve should be triggered.
  • the washing machine comprises more than one valve connected to the periphery of the housing on the drum rear wall at different radii and thus rotating by following different circle-shaped courses and magnetic coils with the same number as the valves, connected to the tub rear wall so that each thereof aligns with a single valve.
  • water in an amount that compensates the unbalanced load and decreases the effect to minimum is taken from the mains and delivered to the slots between the gaskets placed at the portion where the shaft rotating the drum is supported and transferred to the balancing chambers on the baffles from the slots.
  • the valve connected to each slot more than one chamber at one baffle is supplied by means of a single slot and saving is provided by decreasing the number of costly gaskets the production process of which is difficult.
  • the laundry loading capacity of the drum is increased.
  • Figure 1 – is the schematic view of a washing machine.
  • Figure 2 – is the view of detail D in Figure 1.
  • Figure 3 – is the schematic view of the valves placed at the drum of the washing machine and of a magnetic coil placed at the tub in an embodiment of the present invention.
  • Figure 4 – is the sideways view of Figure 3.
  • Figure 5 — is the schematic view of the valves placed at different rotation radii at the drum of the washing machine and of three magnetic coils placed at the tub in another embodiment of the present invention.
  • Figure 6 — is the sideways view of Figure 5.
  • the washing machine (1) comprises a drum (2) rotated by a motor (M) around the horizontal axis (E), wherein the laundry is placed, a tub (3) wherein the drum (2) moves, a shaft (4) that transfers the movement received from the motor (M) to the drum (2), a hub (5) disposed at the center of the rear wall of the tub (3), which is stationary together with the tub (3) and wherein the shaft (4) is supported, at least one baffle (6) disposed at the cylindrical inner surface of the drum (2), which provides the tumbling of the laundry and wherein water is transferred in case of an unbalanced load, a cylindrical housing (7) disposed at the center of the rear wall of the drum (2), surrounding the hub (5) concentrically such that there remains a gap therebetween and rotating together with the drum (2), more than one ring-shaped gasket (8) arranged one after the other and in parallel to each other in the gap between the housing (7) and the hub (5), the outer edges of which are secured to the inner surface of the housing (7), rotating together with the housing (7) and
  • the washing machine (1) of the present invention comprises at least one valve (18) which
  • valve (18) is of multiple-way type and mounted onto the periphery of the housing (7) and rotates together with the drum (2).
  • the valve (18) has one inlet channel (16) and two outlet channels (17, 117), and the inlet channel (16) is connected to the slot (9), the first outlet channel (17) to the first distribution line (14) and the second outlet channel (117) to the second distribution line (114).
  • the control unit (15) detects the unbalanced load during the movement of the drum (2) and controls the operation of the valve (18).
  • the control unit (15) provides the valve (18) to deliver water taken from the slot (9) to the first chamber (13) by means of the first outlet channel (17) and the first distribution line (14) or to the second chamber (113) by means of the second outlet channel (117) and the second distribution line (114) according to the unbalanced load status.
  • the baffles (6), the housing (7), the slots (9), the distribution lines (14, 114) and the valves (18) rotate together with the drum (2) around the horizontal axis (E).
  • the control unit (15) the amount and the position of the unbalanced load and to which baffle (6) water should be delivered is determined, then first the necessary amount of water is taken from the water mains by operating the water inlet valves (11) and water is delivered by means of the water inlet line (10) to the slot (9) in connection with the baffle (6) wherein the unbalance is detected.
  • the embodiment of the present invention is activated and the control unit (15) decides whether water should be delivered to the first chamber (13) or the second chamber (113) supplied by the same slot (9) according to the unbalanced load status.
  • the control unit (15) decides that water should be delivered to the first chamber (13)
  • it provides the valve (18) to open the first outlet channel (17) connected to the first distribution line (14).
  • the control unit (15) detects that water should be delivered to the second chamber (113), it provides the valve (18) to open the second outlet channel (117) connected to the second distribution line (114).
  • the valve (18) provides that the first chamber (13) or the second chamber (113) is supplied by a single slot (9), utilization of separate slots (9) for supplying each chamber (13, 113) is no more required and thus cost is decreased by using fewer number of slots (9) and gaskets (8) in comparison with the state of the art embodiments.
  • the valve (18) is of electromagnetic-type and comprises a body (19) on which the inlet channel (16) and the outlet channels (17, 117) are disposed and a piston-type magnet (20) which closes one outlet channel (17, 117) by moving in the body (19) and which allows water discharge from the other outlet channel (17, 117).
  • the washing machine (1) comprises at least one magnetic coil (21) which is mounted onto the rear wall of the tub (3) so as to be opposite to the valve (18), which is stationary together with the tub (3), which has no mechanical connection with the valve (18), which is magnetized by the control unit (15) by applying electric current and which provides the magnet (20) to open/close the outlet channels (17, 117) by remotely triggering the valve (18) rotating together with the drum (2) when the valve (18) is aligned by means of the magnetic field the magnetic coil (21) produces.
  • the magnetic coil (21) forms a magnetic field and the valve (18) rotating together with the drum (2) is triggered when aligned with the magnetic coil (21), the magnet (20) in the valve (18) moves forwards or backwards in the body (19) according to the magnetic field applied by the magnetic coil (21).
  • the magnetic coil (21) to which electric current is applied by the control unit (15) tries to push or pull the magnet (20) in the body (19) according to the direction of the electric current applied.
  • the magnet (20) moving inside the body (19) provides water to be delivered to the first chamber (13) or the second chamber (113) by opening one outlet channel (17, 117) and closing the other outlet channel (17, 117).
  • the washing machine (1) comprises more than one valve (18) connected to the periphery of the housing (7) and rotating by following a semi-circular course (C) with a radius of (R) with the rotation of the drum (2) and a single magnetic coil (21) connected to the tub (3) rear wall, stationary together with the tub (3) and commonly used for all the valves (18) and a preferably “hall effect” type position sensor (22) placed near to the magnetic coil (21) at the tub (3) rear wall and detecting if the valves (18) are aligned with the magnetic coil (21) during the rotation ( Figure 3, Figure 4).
  • valves (18) rotating together with the drum (2) and the rotating paths of which forms a circular course (C) passes by the stationary magnetic coil (21) in turn and the position sensor (22) detects if the valves (18) are aligned with the magnetic coil (21).
  • the control unit (15) applies electric current to the magnetic coil (21) when the valve (18) connected to the said baffle (6) is aligned with the magnetic coil (21) and the valve (18) is triggered and delivers water to the desired chamber (13, 113).
  • the position sensor (22) sends the information as to which valve (18) should be triggered to the control unit (15) by producing different voltage values for each valve (18), which provide to differentiate more than one valve (18) rotating the same course (C).
  • the control unit (15) when the valve (18) corresponding to the baffle (6) which needs balancing is aligned with the magnetic coil (21), operates the valve (18) by applying current to the magnetic coil (21).
  • the washing machine (1) comprises more than one valve (18) which is connected to the periphery of the housing (7) at different distances from each other in the radial direction in reference to the horizontal axis (E) and thus which rotate by following different courses (C1, C2, C3, ...) at radii (R1, R2, R3, ...) different from each other and magnetic coils (21) in a number as many as the number of the valves (18), which are connected to the tub (3) rear wall at different distances perpendicular to the horizontal axis (E) such that each thereof is opposite to a single valve (18) ( Figure 5, Figure 6).
  • the control unit (15) applies current to the magnetic coil (21) corresponding to the valve (18) that is triggered.
  • Each magnetic coil (21) affects only the valve (18) that it corresponds to in terms of the position thereof and not the other valves (18). Due to the different courses (C1, C2, C3, ...) that the valves (18) follow, the need to detect and differentiate different valves (18) passing by a magnetic coil (21) is eliminated, thus the control unit (15) does not need a position sensor (22) in order to apply current to the magnetic coil (21).
  • the control unit (15) applies electric current for a certain period of time to the magnetic coil (21) corresponding to the baffle (6) the chambers (13, 113) of which will be supplied with water without waiting it to align with the valve (18) and the related valve (18) performs its function, during the rotation thereof, by being triggered at the moment it passes by the magnetic coil (21) forming a magnetic field beforehand.
  • the washing machine (1) comprises 3 baffles (6) placed around the rotational axis (E) at 120 degree-gaps, 6 chambers (13, 113) 4 gaskets (8) arranged in order between the housing (7) and the hub (5), 3 slots (9) disposed between the gaskets (8) and each of which is connected to a baffle (6) and 3 valves (18) connected to the said 3 slots (9) and guiding water received from the slots (9) to the chambers (13, 113).
  • Each valve (18) provides each chamber (13 or 113) to be supplied from the same slot (9) by means of the two outlet channels (17), 3 slots (9) and 4 gaskets (8) are used for 6 chambers (13, 113) instead of 6 slots (9) and 7 gaskets (8) proposed in the state of the art and thus number of gaskets (8) and slots (9) is decreased.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

La présente invention porte sur une machine à laver (1) comprenant un moyeu (5) qui s'étend du milieu de la paroi arrière du bac à laver (3) dans le tambour (2) et dans lequel l'arbre (4) est supporté, au moins une cloison (6) disposée à la surface interne du tambour (2), dans lequel l'eau est transférée en cas de chargement non équilibré, un boîtier cylindrique (7) disposé au centre de la paroi arrière du tambour (2) autour de l'axe horizontal, entourant le moyeu (5) d'une manière concentrique de telle sorte qu'il reste un espace entre eux et tournant conjointement avec le tambour (2), plus d'un joint d'étanchéité en forme d'anneau (8) disposés les uns après les autres et parallèles les uns aux autres dans l'espace entre le boîtier (7) et le moyeu (5), dont les bords externes sont fixés à la surface interne du boîtier (7), tournant conjointement avec le boîtier (7) et dont les bords internes sont en contact avec la surface externe cylindrique du moyeu (5), plus d'une fente (9) disposée entre les joints d'étanchéité (8), au moins une conduite d'entrée d'eau (10) qui fournit de l'eau prise à partir des conduites principales d'eau à distribuer à la fente (9) pour le processus d'équilibrage du chargement non équilibré, dont une extrémité est reliée aux conduites principales d'eau et dont l'autre extrémité est reliée à la fente (9) et qui est fixe avec le bac à laver (9) et une unité de commande (15) qui ouvre/ferme les soupapes d'entrée d'eau (11) par détermination de la quantité et de la position du chargement non équilibré lorsqu'un chargement non équilibré est détecté et qui détermine la quantité d'eau qui devrait être distribuée dans la cloison (6) et la chambre (13, 113).
PCT/EP2011/057854 2010-05-20 2011-05-16 Machine à laver dans laquelle le chargement non équilibré est équilibré Ceased WO2011144558A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11733598.4A EP2572027B1 (fr) 2010-05-20 2011-05-16 Machine à laver dans laquelle le chargement non équilibré est équilibré

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201004002 2010-05-20
TRA2010/04002 2010-05-20

Publications (1)

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WO2011144558A1 true WO2011144558A1 (fr) 2011-11-24

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PCT/EP2011/057854 Ceased WO2011144558A1 (fr) 2010-05-20 2011-05-16 Machine à laver dans laquelle le chargement non équilibré est équilibré

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EP (1) EP2572027B1 (fr)
WO (1) WO2011144558A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016510244A (ja) * 2013-02-13 2016-04-07 エルジー エレクトロニクス インコーポレイティド 衣類処理装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104120583B (zh) * 2013-04-26 2017-10-24 青岛海尔洗衣机有限公司 一种具有注水口式平衡环的洗衣机及控制方法
US11053623B2 (en) 2019-01-23 2021-07-06 Haier Us Appliance Solutions, Inc. Methods of operating balancing systems of washing machine appliances with motion sensors

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB605731A (en) * 1945-11-28 1948-07-29 George Thilmeyer Hemmeter Improvements in or relating to dynamically self-balancing units and an extractor employing the same
JP2002136792A (ja) 2000-11-01 2002-05-14 Sanyo Electric Co Ltd ドラム式洗濯機
WO2008125498A1 (fr) 2007-04-16 2008-10-23 Arcelik Anonim Sirketi Machine à laver séchante
WO2010043273A1 (fr) * 2008-10-16 2010-04-22 Arcelik Anonim Sirketi Machine à laver séchante

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB605731A (en) * 1945-11-28 1948-07-29 George Thilmeyer Hemmeter Improvements in or relating to dynamically self-balancing units and an extractor employing the same
JP2002136792A (ja) 2000-11-01 2002-05-14 Sanyo Electric Co Ltd ドラム式洗濯機
WO2008125498A1 (fr) 2007-04-16 2008-10-23 Arcelik Anonim Sirketi Machine à laver séchante
WO2010043273A1 (fr) * 2008-10-16 2010-04-22 Arcelik Anonim Sirketi Machine à laver séchante

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016510244A (ja) * 2013-02-13 2016-04-07 エルジー エレクトロニクス インコーポレイティド 衣類処理装置
US10023987B2 (en) 2013-02-13 2018-07-17 Lg Electronics Inc. Laundry treatment apparatus

Also Published As

Publication number Publication date
EP2572027A1 (fr) 2013-03-27
EP2572027B1 (fr) 2015-08-05

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