WO2016203441A1 - Élément intégré pour lave-vaisselle - Google Patents

Élément intégré pour lave-vaisselle Download PDF

Info

Publication number
WO2016203441A1
WO2016203441A1 PCT/IB2016/053612 IB2016053612W WO2016203441A1 WO 2016203441 A1 WO2016203441 A1 WO 2016203441A1 IB 2016053612 W IB2016053612 W IB 2016053612W WO 2016203441 A1 WO2016203441 A1 WO 2016203441A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
chamber
conduit
opening
component according
Prior art date
Application number
PCT/IB2016/053612
Other languages
English (en)
Inventor
Enzo Brignone
Cristiano Picco
Original Assignee
Bitron S.P.A.
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 Bitron S.P.A. filed Critical Bitron S.P.A.
Publication of WO2016203441A1 publication Critical patent/WO2016203441A1/fr

Links

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
    • A47L15/4229—Water softening arrangements
    • A47L15/4231—Constructional details of the salt container or the ion exchanger
    • 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
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops

Definitions

  • the present invention relates to the field of dishwashing machines and in particular to the accessories for softening the mains water supplied to it.
  • EP 0 205 787 and EP 0 205 788 describe dishwashing machines provided with a bulky decalcifying device, which has a vessel intended specifically to contain the water to be supplied to the salt reservoir so as to produce a brine for regenerating ion exchange resins, and in which the salt reservoir is above the chamber which contains said resins.
  • EP 0 367 062 describes a decalcifying device which has a single body formed at least by three parts welded together and is provided with a vessel intended specifically to contain the water to be supplied to the salt reservoir so as to produce a brine for regenerating ion exchange resins.
  • EP 0 565 876 and EP 0 571 806 describe bulky decalcifying devices each provided with a vessel intended specifically to contain the water to be supplied to the salt reservoir, wherein the regeneration process is controlled by means of two separate electric control devices.
  • EP 2 564 752 describes a decalcifying device formed by a number of separate parts assembled together.
  • EP 1 497 491 describes a decalcifying device, wherein the resin regeneration takes place in an open circuit and which lacks a device for blowing out the vapours which form inside the washing tank of the respective dishwasher.
  • IT 1 360 369 describes a decalcifying device formed by a number of parts welded together, wherein provision is made of a vessel intended specifically to contain the water to be supplied to the salt reservoir, and wherein the conduit for blowing out vapours from the washing tank is formed at the filler tube for loading the salt, thus compromising the drying efficiency. It is an object of the present invention to provide a decalcifying device and a dishwashing machine in which it is installed which have a structure and production method which are simplified with respect to those described in the prior art.
  • the present invention further relates to a dishwashing machine which comprises an integrated component of the type indicated above.
  • the present invention further relates to a method for testing an integrated component of the type indicated above, which is described in the accompanying claim 10.
  • the present invention yet further relates to a method for recycling an integrated component of the type indicated above, which is described in the accompanying claim 11.
  • Figure 1 is a perspective view of an integrated component of the invention
  • Figure 2 is a view of the component shown in Figure 1, with a number of parts in exploded form,
  • Figures 3 to 5 are schematic elevated views illustrating successive steps for mounting the component of the preceding figures on a washing tank
  • Figures 6 and 7 are schematic views in frontal and lateral elevation, respectively, of the hydraulic circuit of the component of the invention during the water-softening step
  • Figures 8 and 9 are schematic views in frontal and lateral elevation, respectively, of the hydraulic circuit of the component of the invention during the regeneration step,
  • Figure 10 is a view in vertical section of the integrated component of the invention along the line X-X shown in Figure 1 ,
  • Figure 11 is an elevated view, on an enlarged scale, of a detail (salt loading zone) of the integrated component of the invention
  • Figure 12 is a view in vertical section of the detail shown in the preceding figure along the line XII-XII shown in Figure 1, and
  • Figure 13 is a view in vertical section of the detail shown in Figure 11 along the line XIII-XIII.
  • Figure 1 shows an integrated component for supplying and treating water for a dishwashing machine, said component comprising a monolithic body 10 of plastics material.
  • the latter comprises an approximately flat part 12 arranged in a substantially vertical manner, from a lower portion of which there protrudes an attachment 14 having a substantially parallelepiped shape.
  • the term "monolithic" in the present description is intended to mean an assembly formed by two or more parts which are joined permanently to one another and are no longer separable, apart from possibly as a result of irreversible breakage.
  • the monolithic body 10 is produced by welding together (Figure 2) two half-parts 10a, 10b along a line which lies in a vertical plane.
  • the half-part 10a arranged at the rear with reference to Figure 2, may be a simple planar sheet, or may include elevations which, in combination with those of the half-part 10b, form the internal circuits of the component, which includes (figures 6-9):
  • a salt-containing reservoir 26 positioned in the attachment 14, that is in the lowest portion of the body 10, and having a filler tube 28 for loading the salt, which is provided with a plug 29 (shown for greater clarity only in Figures 12 and 13);
  • compartment 30 for blowing out vapours having an inlet opening 32 and an outlet opening 34;
  • conduit 36 for supplying water to the reservoir 26 so as to produce a brine for regenerating substances with water-softening properties
  • conduit 38 for connecting the reservoir 26 to the chamber 20, on which there are positioned means for controlling the flow of the brine, such as a pump 40.
  • the inlet opening 32 of the compartment 30 for blowing out vapours is formed ( Figures 1 and 10) in a protrusion 42 of the central portion of the substantially flat part 12, which has a substantially circular cross section and a substantially horizontal axis 44 and has a plurality of elastic tabs 46 on its lateral external surface.
  • Each tab 46 has, in plan view, a substantially rectangular shape, is connected to the protrusion 42 only on one side 48, and has a thickness which increases gradually proceeding towards the opposite side which constitutes a free edge.
  • the filler tube 28 for loading the salt is part of a protrusion 50 of the attachment 14 of the monolithic body 10, said filler tube having a substantially circular cross section and a substantially vertical axis 52 and having a plurality of elastic tabs 46 on its lateral external surface.
  • the structure of these tabs 46 is substantially analogous to that of the tabs described previously in relation to the protrusion 42.
  • the protrusions 42, 50 make it possible for the component to be connected directly to a washing tank 54 of the dishwashing machine, without it being necessary to use additional fixing elements, such as nuts and the like, and/or tubes, thereby facilitating the adoption of automated assembly processes.
  • first the protrusion 50 ( Figure 4) and then the protrusion 42 ( Figure 5) are connected.
  • the possibility to conventionally use known fixing elements, such as tightening nuts and the like, for at least one of the two connections is not excluded, however.
  • the tank 54 is made from metal sheet and has, in a substantially vertical side wall 56 and in a substantially horizontal bottom wall 58, a respective projection 60, within each of which provision is made of an opening 62 having a shape corresponding to that of the protrusion 42, 50 of the integrated component inserted therein.
  • This insertion is made possible by the curvature of the respective elastic tabs 46, which firstly curve inwards radially and then expand radially outwards, acting as elastic holding means which prevent subsequent inadvertent removal of the component.
  • a water-tight seal at the openings 62 of the tank 54 is ensured by respective O-rings 64 arranged between the internal wall of each projection 60 and a facing section of the external wall of the protrusion 42, 50.
  • connection which involves the protrusion 42 has to allow a movement along the horizontal axis 44, whereas the connection which involves the protrusion 50 has to allow a movement along the vertical axis 52.
  • the presence of a respective connection on each of the two orthogonal walls 56, 58 in any case makes the assembly of the component on the tank 54 intrinsically stable, and therefore the presence of elastic holding means, such as the tabs 46, on the protrusions 42, 50 is not essential.
  • embodiments of the present invention are possible in which the protrusions 42, 50 do not have tabs 46 and the component is kept assembled on the tank 54 owing to the interference which exists between the respectively facing parts and the interposed O-rings 64.
  • the opening 32 is in communication with the tank 54 and can thus act as an inlet into the compartment 30 for the vapours which are generated in the tank 54 during the washing operations and should be removed. In a manner known per se, these vapours can be discharged later passing through the outlet opening 34 of the compartment 30. This discharge also makes it possible to dampen any pressure variations which form in the washing tank 54 due to variations in temperature.
  • the chamber 20 containing ion exchange resins has an outwards opening 66 provided with a removable plug 68, also typically made of plastics material, such as to allow for the introduction or removal of said resins, as desired.
  • the plug 68 has a plastic coupling advantageously with a degree of play of less than 0.2 mm in the part in contact with the resins and a coupling on the wall of the opening 66 which prevents water escaping owing to a plastic-on-plastic contact. If appropriate, provision may be made for a sealing gasket to be present between the wall of the opening 66 and the plug 68.
  • the plug 68 may be formed in one piece with one of the two half-parts 10a, 10b, to which it is connected by a flap or similar holding means which allow for the opening/closing movement with respect to the opening 66, in any case holding the plug on the body 10.
  • This arrangement is extremely advantageous because it makes it possible to test the watertight seal of the component before the resins are introduced into the chamber 20. As a result, only the parts which have passed the test are loaded with the resins, whereas those which are rejected can be sent directly to the recycling operations. Analogously, at the end of the service life of the component, it is possible to open the plug 68 and empty the chamber 20 of the resins, such that in this case, too, the component from which the latter have been removed can easily be recycled. During normal operation of the component, the mains water is supplied from the inlet conduit 16 into the chamber 20, where it is decalcified by the ion exchange resins (cf. Figures 6 and 7).
  • the decalcified water exits from the top of the chamber 20 through the conduit 22, and firstly passes through the air break section 24, which does not cause a loss of pressure owing to its position downstream of the chamber 20. Then, the decalcified water enters ( Figures 10 and 12) into a conduit 53, which issues, in a manner known per se, into the washing tank 54 through a passage formed between an arch of the circumferential wall of the filler tube 28 and the wall of the protrusion 50 arranged coaxially outside it.
  • the closed-circuit regeneration method described above has a number of advantages. First of all, it does not involve additional consumption of water, since only the water which is initially present in the chamber 20 is used, nor does it require devices for measuring and collecting the quantity of water intended to form the brine. Indeed, from that described above it results that the chamber 20 for containing ion exchange resins also acts as a container for the water intended to form the brine, thereby making it possible to do without a vessel intended specifically for that function, with a resultant simplification of the structure of the integrated component. In addition, the salt reservoir 26 is not placed under pressure, and therefore the brine cannot penetrate into the washing tank 54, even if the plug 29 of the filler tube 28 is not sealed.
  • the regeneration can also be carried out during any desired operating stage of the dishwashing machine, with a reduction in the overall time required by the respective washing cycle. It is also to be noted that, once the component has been assembled on the dishwashing machine, the opening 66 is at such a level that it cannot be reached by the water supplied into the washing tank 54 during the loading phase.
  • the hydraulic circuit inside the component which can allow for the formation of the brine and the use thereof for regenerating the resins may be formed in any other known manner, such as that described in EP 1 844 693 Al/EP 2 561 790 Al, the contents of which are hereby incorporated by reference in the present description.
  • the component instead of providing for a pump to be present on the conduit for connecting the salt reservoir to the resin chamber, the component comprises a valve located at a point at which the conduit for supplying water to the salt reservoir branches off from the inlet conduit.
  • This valve can thus adopt a first operating configuration, in which it blocks the flow in the conduit for supplying water towards the reservoir while it allows for the flow in the inlet conduit towards the chamber, into which all of the water is thereby directed, and a second operating configuration, in which it allows for both the flow in the conduit for supplying water towards the reservoir and the flow in the inlet conduit directed towards the chamber.

Landscapes

  • Treatment Of Water By Ion Exchange (AREA)

Abstract

L'invention concerne un élément intégré pour acheminer et traiter de l'eau pour un lave-vaisselle, qui comprend un corps monolithique (10) de matière plastique, dans lequel un conduit d'entrée (16) pour l'eau, une chambre (20) contenant des substances avec des propriétés d'adoucissement d'eau, dans laquelle se trouve le conduit d'entrée (16), un réservoir contenant du sel (26) disposé dans la partie la plus basse du corps (10) et comprenant un tube de remplissage (28) pour charger le sel, un compartiment (30) pour souffler des vapeurs à l'extérieur comportant une ouverture d'entrée (32) et une ouverture de sortie (34), un conduit de sortie (22) de l'eau provenant de la chambre (20), un conduit (36) pour acheminer l'eau vers le réservoir (26) de façon à produire, à l'intérieur de celui-ci, une saumure pour régénérer les substances avec des propriétés d'adoucissement d'eau, et un conduit (38) reliant le réservoir (26) à la chambre (20) sont définis. Au sommet, la chambre (20) comporte également une ouverture vers l'extérieur (66) comportant un bouchon amovible (68), de telle sorte que l'introduction et le retrait des substances avec des propriétés d'adoucissement d'eau sont autorisés à l'intérieur de celle-ci.
PCT/IB2016/053612 2015-06-19 2016-06-17 Élément intégré pour lave-vaisselle WO2016203441A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUB20151542 2015-06-19
IT102015000025467 2015-06-19

Publications (1)

Publication Number Publication Date
WO2016203441A1 true WO2016203441A1 (fr) 2016-12-22

Family

ID=54011836

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/053612 WO2016203441A1 (fr) 2015-06-19 2016-06-17 Élément intégré pour lave-vaisselle

Country Status (1)

Country Link
WO (1) WO2016203441A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110772194A (zh) * 2018-07-27 2020-02-11 比特龙股份公司 流体处理系统、洗碗机和用于制造流体处理系统的方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1517387A1 (de) * 1961-10-03 1969-05-14 Constructa Werke Gmbh Haushaltsspuel- oder -waschmaschine mit Wasserenthaerter
EP0367062A1 (fr) * 1988-11-04 1990-05-09 TECNOPLASTICA PREALPINA S.p.A. Adoucisseur d'eau pour lave-vaisselle
DE102006027667A1 (de) * 2005-06-16 2006-12-21 Bitron S.P.A. Integriertes Bauteil für ein elektrisches Haushaltsgerät
EP1844694A1 (fr) * 2006-04-11 2007-10-17 BITRON S.p.A. Dispositif intégré pour la fourniture et le traitement d'eau pour lave-vaisselle
EP2033566A1 (fr) * 2007-09-05 2009-03-11 BITRON S.p.A. Dispositif pour traitement de l'eau dans un lave-vaisselle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1517387A1 (de) * 1961-10-03 1969-05-14 Constructa Werke Gmbh Haushaltsspuel- oder -waschmaschine mit Wasserenthaerter
EP0367062A1 (fr) * 1988-11-04 1990-05-09 TECNOPLASTICA PREALPINA S.p.A. Adoucisseur d'eau pour lave-vaisselle
DE102006027667A1 (de) * 2005-06-16 2006-12-21 Bitron S.P.A. Integriertes Bauteil für ein elektrisches Haushaltsgerät
EP1844694A1 (fr) * 2006-04-11 2007-10-17 BITRON S.p.A. Dispositif intégré pour la fourniture et le traitement d'eau pour lave-vaisselle
EP2033566A1 (fr) * 2007-09-05 2009-03-11 BITRON S.p.A. Dispositif pour traitement de l'eau dans un lave-vaisselle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110772194A (zh) * 2018-07-27 2020-02-11 比特龙股份公司 流体处理系统、洗碗机和用于制造流体处理系统的方法

Similar Documents

Publication Publication Date Title
EP3310237B1 (fr) Composant intégré pour lave-vaisselle
US9901238B2 (en) Washing machine comprising a de-scaling apparatus
CN113331762B (zh) 洗碗机
EP3310234B1 (fr) Composant intégré pour lave-vaisselle
CN108004725B (zh) 一种洗衣机自动投放装置、控制方法及洗衣机
CN109944027B (zh) 衣物处理设备
KR20140101630A (ko) 식기세척기 및 그 제어방법
WO2016203439A1 (fr) Lave-vaisselle
EP1905339B1 (fr) Lave-Vaisselle industriel avec circuit adoucisseur d'eau amélioré
CN109881443A (zh) 衣物处理设备
WO2016203441A1 (fr) Élément intégré pour lave-vaisselle
EP2623013A1 (fr) Lave-vaisselle industriel avec un circuit adoucisseur d'eau amélioré et procédé de fonctionnement associe
US10646098B2 (en) Integrated component for a dishwashing machine
JP5083616B2 (ja) 軟水化装置、並びに、給湯システム
CN105088686A (zh) 洗衣机及其自动投放系统
KR102223012B1 (ko) 연수기의 분리 가능한 재생통 및 재생통의 드레인 바스켓
EP1452123B1 (fr) Machine automatique à laver des objets avec un circuit d'alimentation d'eau amélioré
CN111691136B (zh) 衣物处理设备
KR102390031B1 (ko) 식기세척기
EP2564753B1 (fr) Dispositif d'adoucissement d'eau contenant du sel anhydre
CN109944025A (zh) 再生处理器以及衣物处理设备
CA2686230C (fr) Lave vaisselle avec unite optionnelle formant adoucisseur d'eau
JP2008161807A (ja) ろ過装置
KR20170076581A (ko) 스팀 조리용기
CN105352182A (zh) 软水装置和具有其的热水器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16745163

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16745163

Country of ref document: EP

Kind code of ref document: A1