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EP4180565B1 - Système d'irrigation, appareil ménager à circulation d'eau et procédé de conduite de fluide - Google Patents

Système d'irrigation, appareil ménager à circulation d'eau et procédé de conduite de fluide

Info

Publication number
EP4180565B1
EP4180565B1 EP22201073.8A EP22201073A EP4180565B1 EP 4180565 B1 EP4180565 B1 EP 4180565B1 EP 22201073 A EP22201073 A EP 22201073A EP 4180565 B1 EP4180565 B1 EP 4180565B1
Authority
EP
European Patent Office
Prior art keywords
fluid
flushing system
water
geometry
region
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP22201073.8A
Other languages
German (de)
English (en)
Other versions
EP4180565A1 (fr
Inventor
Kai Nitschmann
Olaf Münch
Dorian Perlitz
Paul Scholz
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete 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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP4180565A1 publication Critical patent/EP4180565A1/fr
Application granted granted Critical
Publication of EP4180565B1 publication Critical patent/EP4180565B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • D06F39/088—Liquid supply arrangements
    • 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • 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 
    • D06F39/40—Steam generating arrangements

Definitions

  • the invention relates to a flushing system for a water-conducting household appliance, a water-conducting household appliance and a method for conducting fluid.
  • a flushing system typically represents part of a water supply system designed to direct the media conditions external to the water-using household appliance, in particular the water line pressure and volume flow, into a treatment chamber of the water-using household appliance, either adjusted or unadjusted.
  • the flushing system can supply a fluid (water or a mixture of water and other substances) to the treatment chamber.
  • EP 3 358 067 A1 describes a washing machine in which washing water is divided by dividing a flow path.
  • a dispensing system having the features of claim 1, a water-conducting household appliance having the features of claim 9 and a method for conducting fluid into a tub of a water-conducting household appliance having the features of claim 11.
  • a dispensing system for a water-conducting household appliance wherein the dispensing system is designed to be flowed through by a fluid from an upstream end to a downstream end in a main flow direction, wherein the dispensing system comprises: a hose main body, an outlet region arranged at the downstream end of the hose main body and having an opening for discharging the fluid, wherein the opening extends in an outlet plane, and a fluid guide geometry designed to guide the fluid, wherein the fluid guide geometry is arranged in the outlet region of the dispensing system such that it is located upstream of the outlet plane.
  • the water-conducting household appliance can, for example, be a laundry treatment appliance or a washer-dryer. It is also conceivable that the water-conducting household appliance is a dishwasher.
  • the water-conducting household appliance can have a treatment chamber to which a fluid (e.g., water or a mixture of water and other substances) is to be supplied.
  • a fluid e.g., water or a mixture of water and other substances
  • the water-conducting household appliance can have at least two different functionalities, in which the fluid is to be supplied to the treatment chamber in different ways.
  • the at least two functionalities can differ with regard to a volume flow of fluid to be supplied.
  • it may be desired that the fluid is introduced into the treatment chamber with a high volume flow and a high flow velocity (i.e., with high kinetic energy).
  • the fluid is supplied to the treatment chamber with a lower volume flow and a lower flow velocity (i.e., with low kinetic energy).
  • the present invention offers the advantage that the inventive Arrangement of the fluid guidance geometry in the induction system, both the first functionality and the second functionality are efficiently enabled.
  • the induction system can be a tubular element designed to transport a fluid.
  • the induction system can be designed to conduct and/or guide the fluid.
  • the induction system can have a closed cross-section through whose center the main flow direction can run.
  • the main flow direction can follow the general course of the induction system.
  • the induction system can have a curved course so that the induction system can be installed even in a confined space. Furthermore, the induction system can be easily adapted to different installation locations.
  • the induction system can comprise a siphon designed to retain a certain amount of fluid and thus block the outflow cross-section for gases and/or odors. This can prevent gases and/or odors from being discharged from the treatment chamber through the induction system.
  • the induction system can have an upstream end and a downstream end with respect to the flow direction of the fluid through the induction system. In other words, the fluid can flow through the induction system from the upstream end to the downstream end.
  • the water or a mixture of treatment agent and water i.e., a fluid
  • the fluid can then be supplied from the dispensing system to the tub.
  • the media conditions external to the household appliance in particular, water pressure and flow rate
  • a valve block can also be provided to control the water supply to the household appliance.
  • the fluid can reach the actual process chamber (the oscillating system) through downstream water-conducting devices (inlet hose, dispenser tray, filler hose, etc.).
  • the process chamber can be formed by the tub and the laundry drum.
  • the outlet region 5, which is arranged at the downstream end 3 of the induction system 1, has an opening 6 through which the fluid can leave the induction system 1.
  • the opening 6 lies in an outlet plane 8.
  • the induction system 1 has a fluid guide geometry 7 designed to guide the fluid.
  • the fluid guide geometry 7 is a baffle-like structure that blocks part of the outflow cross-section through the induction system 1. In other words, fluid flowing in the main flow direction from the upstream end 2 to the downstream end 3 of the induction system 1 must flow over the fluid guide geometry 7.
  • the fluid can be guided through the fluid guide geometry 7.
  • the fluid guide geometry has two incisions through which the fluid can pass. This allows the fluid flow to be concentrated downstream of the fluid guide geometry 7.
  • the fluid guide geometry 7 is arranged upstream of the outlet plane 8 in the induction system 1.
  • the fluid guide geometry 7 is thus spaced from the opening 6 or the outlet plane 8. If the fluid flows over the fluid guide geometry 7, it describes an arc shape (i.e., a jet arc).
  • the shape of the fluid flowing over the fluid guide geometry 7 can be described as a jet arc.
  • the fluid when flowing over an object in the gravity discharge, the fluid cannot directly change its flow direction (e.g., change from a horizontal flow direction to a vertical flow direction), but the change in direction is described successively, i.e., in the form of a jet arc.
  • the jet arc described by the fluid upon leaving the fluid guidance geometry can be shifted by the amount of the offset of the fluid guidance geometry relative to the outlet plane 8.
  • the jet arc of the fluid can be arranged such that the fluid is guided onto an impact surface 12 of the induction system 1 after leaving the fluid guidance geometry 7. This can reduce the flow velocity of the fluid and, due to the resulting turbulence, reduce the kinetic energy of the fluid.
  • the fluid can thus leave the induction system 1 at a lower flow velocity and form a very flat jet arc upon running off the impact surface 12.
  • This can also cause the fluid to change direction immediately downstream of the outlet plane 8 of the induction system 1.
  • the fluid can be directed to an inner surface of the tub to drain away.
  • Figure 2 is a schematic and perspective view of a part of a dispenser system 1 according to another embodiment of the present invention.
  • the dispenser system 1 of the present embodiment is similar to that shown in Figure 1 shown flushing system 1 with the difference that the fluid guide geometry 7 has a different design.
  • the fluid guide geometry 7 does not have a baffle-like Structure, but is realized by an overflow area with guide lips 11 extending in the flow direction.
  • the fluid guide geometry 7 also has an overflow area 9, over which the fluid flows.
  • the fluid guide geometry has a separation edge 10, from which the fluid drips. In other words, the fluid leaves the fluid guide geometry 7 after passing the separation edge 10.
  • the separation edge 10 can be part of the overflow area 9.
  • the separation edge 10 can define the most downstream point of the overflow area 9.
  • the fluid guide geometry 7 is also spaced from the outlet plane 8 in the direction of the upstream end 2 of the induction system 1. More precisely, the separation edge 10 is spaced from the outlet plane 8.
  • FIG 3 is a schematic cross-section of a part of a flushing system according to the Figure 2 illustrated embodiment. Furthermore, the rinsing system 1 with its receiving area 13 is attached to a treatment chamber 101.
  • a baffle surface 103 can be formed by the treatment chamber 101.
  • the treatment chamber 101 can have its own baffle surface 103, onto which the fluid impacts after leaving the fluid guide geometry 7.
  • the baffle surface 103 can be formed by the inner circumference of a flange of the treatment chamber 101.
  • FIG 4 is a perspective and schematic view of a laundry treatment appliance 100 as an example of a water-conducting household appliance.
  • the laundry treatment appliance 100 has a drum 102, which is rotatably mounted in the tub 101.
  • a dispensing system 1 is arranged in the laundry treatment appliance 100.
  • the laundry treatment appliance 100 has the functionality of washing textiles accommodated in the drum 102.
  • the laundry treatment appliance 100 has the functionality of steaming laundry.
  • the water flow within the laundry treatment appliance 100 is designed such that at least two valves are provided, one each for the pre-wash and main wash, which pass the media conditions (water line pressure, volume flow, etc.) acting externally on the laundry treatment appliance 100 almost unhindered into the interior of the laundry treatment appliance when the washing program of the washing functionality is activated.
  • the water or fluid reaches the actual processing chamber, the oscillating system, or more precisely, the tub and the laundry drum, via the water-carrying devices downstream of the valves (inlet hoses, dispenser tray, dispenser hose).
  • the relatively high volume flow of the water or fluid thus conveyed (approximately 10 l per minute), in conjunction with the geometric design of the components involved, enables rapid moistening of the laundry in the drum 102 and a sufficiently high water level in a heating compartment of the tub. This results in fast and effective cleaning of the textiles.
  • the functionality of steaming laundry is intended to provide the user with the option of preparing clean, dry clothing for easier ironing through a suitable steam treatment. This can be achieved by providing a targeted, slight and even moistening of the textiles in the drum 102 through steaming, with simultaneous drum movement.
  • This humidification objective is therefore inconsistent with the washing functionality of the water-based household appliance 100 described above. More specifically, the objective of the washing functionality is to quickly moisten the laundry to saturation.
  • the level of humidification required for a noticeable reduction in subsequent ironing effort is approximately 3% to 13% water content (mass percentage compared to dry textiles), specifically approximately 6%. up to 9%.
  • a water content of 2.5% to 5% has proven particularly advantageous, with even heavily wrinkled textiles being very easy to iron.
  • the temperature in the textile is advantageously raised to 30° to 60°, especially to 40° to 50°. This can make the dry, more or less wrinkled fibers of the textile soft and supple. Subsequent ironing is therefore less time-consuming and the result is better in a shorter time.
  • the crease reduction achieved by this treatment is sufficient, so that the shirt can be worn immediately without ironing after a short airing on a hanger.
  • the fluid can flow into the dispensing system 1. This leaves the fluid and flows into the treatment chamber (into the tub 101). If the fluid is passed through the pre-wash or main wash valve at a volume flow of approximately 10 l per minute, it leaves the dispensing system 1 at a high flow velocity and strikes the perforated drum 102, enters through the perforations into an interior of the drum 102, and directly moistens the textiles there. Excess fluid flows downwards from the drum by gravity into the tub and into a heating device provided there.
  • a lower volume flow of fluid approximately 0.5 l per minute, is supplied to the dispenser system 1 from the dispenser bowl complex. Due to the water conduction geometry 7 described above, the lower volume flow prevents the water from reaching the drum 102 directly and thus directly moistening the dry laundry contained therein. The distance between the outlet plane 8 and the outer circumference of the drum 102 is approximately 8 mm. Due to the fluid conduction geometry 7 in the outlet area 5 of the dispenser system 1, the fluid is redirected such that it reaches the space between the inner surface of the tub 101 and the outer surface of the drum 102 and is drained there.
  • the thus drained fluid can be guided to the lowest point of the tub 101 without coming into contact with the laundry in the drum 102 and there, for example, fed to a heating device to be evaporated.
  • the best results are achieved with embodiments achieved in which the water guide geometry 7 is offset in a range of 3 mm to 5 mm from the outlet plane 8 towards the upstream end 2 of the induction system 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Cleaning In General (AREA)

Claims (11)

  1. Système d'injection (1) pour un appareil ménager à circulation d'eau, dans lequel le système d'injection (1) est aménagé pour être traversé par un fluide d'une extrémité amont (2) vers une extrémité aval (3) dans un sens d'écoulement principal, dans lequel le système d'injection (1) comprend :
    un corps principal de tuyau (4), une zone de sortie (5) disposée à l'extrémité aval du corps principal de tuyau (4), et une ouverture (6) pour la décharge du fluide, dans lequel l'ouverture (6) s'étend dans un plan de sortie (8), et une géométrie de guidage de fluide (7) aménagée pour guider le fluide, dans lequel la géométrie de guidage de fluide (7) est disposée dans la zone de sortie (5) du système d'injection (1) de sorte qu'elle se trouve en amont du plan de sortie (8),
    caractérisé en ce que
    la zone de sortie (5) présente une surface d'impact (12) disposée entre le plan de sortie (8) et la géométrie de guidage de fluide (7), aménagée pour réduire une énergie cinétique du fluide qui a traversé la géométrie de guidage de fluide (7).
  2. Système d'injection (1) selon la revendication 1, dans lequel la géométrie de guidage de fluide (7) présente une zone submersible (9), laquelle est disposée essentiellement de façon orthogonale au sens d'écoulement principal du fluide à travers le système d'injection (1).
  3. Système d'injection (1) selon la revendication 2, dans lequel la géométrie de guidage de fluide (7) comprend la zone submersible (9) sur son côté aval, dans lequel la zone submersible (9) présente un rayon aménagé pour guider le fluide le long de la zone submersible (9) pendant un fonctionnement du système d'injection (1).
  4. Système d'injection (1) selon la revendication 1, dans lequel la géométrie de guidage de fluide (7) présente, sur son côté aval, une zone submersible (9), dans lequel la zone submersible (9) présente un rayon aménagé pour guider le fluide le long de la zone submersible (9) pendant un fonctionnement du système d'injection (1).
  5. Système d'injection (1) selon l'une des revendications précédentes, dans lequel un bord de rupture (10) de la géométrie de guidage de fluide (7) est éloigné de 0,2 mm à 5 mm, de préférence de 1 mm à 4 mm, de façon encore plus préférée de 2,5 mm à 3 mm, par rapport au plan de sortie (8).
  6. Système d'injection (1) selon l'une des revendications précédentes, dans lequel une section d'écoulement à disposition du fluide à l'endroit de la géométrie de guidage de fluide (7) est inférieure d'au moins 10 %, plus préférablement d'au moins 20 %, à la section d'écoulement à l'endroit de l'ouverture (6).
  7. Système d'injection (1) selon l'une des revendications précédentes, dans lequel la géométrie de guidage de fluide (7) présente au moins une lèvre de guidage (11) qui s'étend essentiellement le long du sens d'écoulement principal et aménagée pour guider le fluide.
  8. Système d'injection (1) selon l'une des revendications précédentes, dans lequel la zone de sortie (5) présente une zone de réception (13) aménagée pour recevoir une bride d'un espace de traitement (101).
  9. Appareil ménager à circulation d'eau (100) comprenant :
    un système d'injection (1) selon l'une des revendications précédentes, une cuve de lavage (101) essentiellement cylindrique avec une bride de raccordement à laquelle le système d'injection (1) est raccordé ou peut être raccordé, et un tambour (102) pour l'accueil de linge à traiter, qui est disposé de façon rotative dans la cuve de lavage (101),
    dans lequel le système d'injection (1) est raccordé ou peut être raccordé dans la moitié supérieure de la cuve de lavage (101).
  10. Appareil ménager à circulation d'eau (100) selon la revendication 9, dans lequel la bride de raccordement de la cuve de lavage présente une surface d'impact (103) aménagée pour réduire l'énergie cinétique du fluide qui a traversé la géométrie de guidage de fluide (7).
  11. Procédé pour l'alimentation en fluide d'une cuve de lavage (101) d'un appareil ménager à circulation d'eau (100), dans lequel le procédé comprend :
    l'alimentation en fluide par un système d'injection (1) selon l'une des revendications 1 à 8, et le guidage du fluide à travers la géométrie de guidage de fluide (7) de sorte que le fluide est dirigé sur une paroi intérieure de la cuve de lavage (101) pour s'y écouler.
EP22201073.8A 2021-11-10 2022-10-12 Système d'irrigation, appareil ménager à circulation d'eau et procédé de conduite de fluide Active EP4180565B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021212638.3A DE102021212638A1 (de) 2021-11-10 2021-11-10 Einspülsystem, wasserführendes Haushaltsgerät und Verfahren zum Leiten von Fluid

Publications (2)

Publication Number Publication Date
EP4180565A1 EP4180565A1 (fr) 2023-05-17
EP4180565B1 true EP4180565B1 (fr) 2025-10-08

Family

ID=83691607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22201073.8A Active EP4180565B1 (fr) 2021-11-10 2022-10-12 Système d'irrigation, appareil ménager à circulation d'eau et procédé de conduite de fluide

Country Status (3)

Country Link
EP (1) EP4180565B1 (fr)
CN (1) CN116103889A (fr)
DE (1) DE102021212638A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022208538A1 (de) * 2022-08-17 2024-02-22 BSH Hausgeräte GmbH Einspülschlauch für ein wasserführendes Haushaltsgerät

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101128809B1 (ko) * 2008-12-29 2012-03-23 엘지전자 주식회사 세탁장치
DE202011104270U1 (de) 2011-08-11 2011-12-14 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Wasservorlageeinrichtung
EP3358067B1 (fr) * 2015-09-30 2025-06-04 LG Electronics Inc. Machine à laver
DE102020212699A1 (de) * 2020-10-08 2022-04-14 BSH Hausgeräte GmbH Wäschebehandlungsgerät mit bedampfungsfunktion und verfahren zum bedampfen von wäsche

Also Published As

Publication number Publication date
EP4180565A1 (fr) 2023-05-17
DE102021212638A1 (de) 2023-05-11
CN116103889A (zh) 2023-05-12

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