EP4324973A1 - Appareil ménager pour l'entretien de pièces de linge avec système de rinçage spécifique pour un système de guidage d'air, ainsi que procédé - Google Patents

Appareil ménager pour l'entretien de pièces de linge avec système de rinçage spécifique pour un système de guidage d'air, ainsi que procédé Download PDF

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Publication number
EP4324973A1
EP4324973A1 EP23188502.1A EP23188502A EP4324973A1 EP 4324973 A1 EP4324973 A1 EP 4324973A1 EP 23188502 A EP23188502 A EP 23188502A EP 4324973 A1 EP4324973 A1 EP 4324973A1
Authority
EP
European Patent Office
Prior art keywords
opening
household appliance
air
drum
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.)
Pending
Application number
EP23188502.1A
Other languages
German (de)
English (en)
Inventor
Thomas Schneider
Harald MOSCHÜTZ
Fengjun Li
Andreas ERHARDSBERGER
Hans Eglmeier
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 EP4324973A1 publication Critical patent/EP4324973A1/fr
Pending 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/22—Lint collecting 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/43—Control of cleaning or disinfection of washing machine parts, e.g. of tubs
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
    • D06F33/69—Control of cleaning or disinfection of washer-dryer parts, e.g. of tubs
    • 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/008—Methods for washing, rinsing or spin-drying for disinfecting the tub or the drum
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/24—Spin speed; Drum movements
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis

Definitions

  • the household appliance has a housing.
  • the household appliance also has a tub which is arranged in this housing.
  • the household appliance has a drum, which can also be referred to as a laundry drum.
  • the drum is separate from the tub.
  • the drum is arranged in the tub and is rotatably mounted about an axis of rotation.
  • the household appliance also has an air control system with which air can be directed into the drum.
  • the household appliance has a flushing system with which the air guidance system can be flushed with liquid at least in some areas.
  • Another aspect of the invention relates to a method for flushing an air duct system of a household appliance.
  • Household appliances for the care of laundry items with appropriate rinsing systems are, for example, from the EP 2752519 B1 and EP 1353004 A1 known.
  • this flushing system has its own pump and/or a nozzle. The liquid is pumped or injected into the air control system using these separate components.
  • flushing systems have their own additional valves, such as an inlet valve and a check valve, in order to meter the supply of flushing liquid to the air control system.
  • the household appliance has a housing.
  • the household appliance also has a tub which is arranged in this housing.
  • the household appliance has a drum, which can also be referred to as a laundry drum.
  • the drum is separate from the tub.
  • the drum is arranged in the tub and is rotatably mounted about an axis of rotation.
  • the household appliance also has an air control system with which air can be directed into the drum.
  • the household appliance has a flushing system with which the air guidance system can be flushed with liquid at least in some areas.
  • the flushing system has an opening on a circumferential wall of the tub that runs around the axis of rotation. This can also be referred to as a radial opening or circumferential wall opening. It is a flushing liquid passage opening.
  • the opening creates a breakthrough in the circumferential wall, the hole axis of which is oriented in particular radially, i.e. is in particular perpendicular to the axis of rotation.
  • the air guidance system is coupled to this at least one opening in a fluid-conducting manner, so that when the drum rotates about the axis of rotation, liquid in the tub can be conducted through the opening and from there into the air guidance system.
  • Such a concept of the household appliance makes flushing the air duct system easier.
  • this liquid is pushed radially and/or tangentially outwards or thrown outwards.
  • this liquid is transported further outwards by passing through the locally specifically arranged opening in the peripheral wall of the tub. Since the air control system is directly coupled to this opening in a fluid-conducting manner, with this concept the liquid thrown outwards automatically flows to the air control system and flushes it at least in some areas.
  • an amount of liquid which is sufficient to come into contact with the drum is preferably supplied to the tub.
  • an amount of liquid can act on the liquid directly by rotating the drum and set the liquid in motion or in circulation to form the required centrifugal force.
  • a smaller amount of liquid can also be filled in the tub for the rinsing process. In such a case, when the drum rotates, an air circulation is formed in the tub, through which the liquid can then be entrained and a circulation of the liquid can be caused, through which the corresponding centrifugal force acting on the liquid can be provided.
  • This concept also makes it possible for the flushing system to be designed without its own separate pump and/or a nozzle and/or a valve. This means components can be saved. Appropriate installation space for these components is therefore no longer required.
  • the opening is formed in the upper half of the circumferential wall when viewed in the height direction of the household appliance.
  • this opening viewed in the height direction of the household appliance, is formed at least in some areas at the highest point of the circumferential wall. In one exemplary embodiment, this makes it possible for no liquid to escape through the opening when the drum is at a standstill. Permanent flushing of the air control system, especially in potentially undesirable situations, can therefore be avoided. Since liquid can only escape through the opening, which is specifically arranged in the height direction, when the drum is rotated and corresponding centrifugal forces thus act on the liquid in the tub, the flushing of the air control system can also be designed to suit needs.
  • the opening is formed in the rear half of the circumferential wall when viewed in the depth direction of the household appliance.
  • this opening is formed in the rear third of the circumferential wall.
  • an advantageous air duct system has several components, for example a fan and/or a heater, through which air can be directed and/or heated in an air duct of the air duct system, a specific length of this air duct system is required.
  • this position of the opening in the depth direction is advantageous. Because then the air duct can also be positioned specifically locally and provided with an advantageous length, and yet a direct coupling of the air duct of the air duct system with the opening can be achieved.
  • the air guidance system has a fan. This is in particular arranged adjacent to the opening. It is arranged in particular in an air duct of the air duct system. Due to this immediately adjacent arrangement of the fan in the air duct adjacent to this opening, this component of the air duct system is flushed particularly advantageously. As soon as the liquid thrown outwards by the centrifugal force enters and passes through the opening, this fan, as the first component of the air guidance system, is flushed with the liquid thrown outwards. As a result, lint or the like that can accumulate on the fan can be automatically rinsed off in a particularly advantageous manner. The functionality of the fan in particular can thus be maintained in a very advantageous and efficient manner and a very effective and simple flushing concept can be provided.
  • the fan is arranged further outward than the opening when viewed in the radial direction and thus perpendicular to the axis of rotation. Viewed in its position in the depth direction, the fan is arranged in particular to overlap with the opening. This is particularly advantageous in that the liquid passing radially and/or tangentially through the opening and thrown outwards hits the fan directly and the liquid also hits the fan at high speed. This means that the rinsing of media from the fan using this liquid is particularly advantageous. In particular, this advantage is also present when the fan is arranged immediately adjacent to the opening, in particular also immediately adjacent to the opening in the radial direction. In particular, the fan is arranged above the opening when viewed in the height direction of the household appliance, in particular arranged in an extension of the hole axis of the opening.
  • the opening is formed with an extent which corresponds to between 80% and 120% of a diameter of a fan wheel of the fan. This allows the fan wheel to be flushed particularly advantageously and extensively.
  • At least the fan is flushed during a flushing process or a flushing process in which the air guidance system is flushed with the liquid in the flushing system.
  • a main component of the air control system can be cleaned easily and efficiently.
  • the fan blades in particular can be cleaned very effectively and comprehensively. This means that the promotion of the air flow in the air flow system can be improved and achieved permanently, while undesirable imbalances in the fan wheel can be avoided.
  • the air guidance system has an air guidance duct which is guided from the opening to a front opening of the tub.
  • This location for supplying air, in particular heated air, into the interior of the tub and in particular also into the interior of the drum is therefore particularly advantageous and extensively possible.
  • the existing front opening of the drum and the tub is therefore used to enable air to be supplied as needed via this opening.
  • this front opening of the drum is also the loading opening through which the laundry can be removed or introduced.
  • the air guide duct is arranged at least partially above the tub in the housing when viewed in the height direction of the household appliance.
  • the installation space in the housing above the tub is used advantageously in order to be able to position the air duct there at least in some areas.
  • this position is also particularly advantageous for the exemplary embodiments in which the opening is formed in an upper half of the height of the peripheral wall of the tub. A particularly short-distance and direct coupling to the opening is therefore particularly simple and comprehensive.
  • a rear end of the air guide channel is arranged above the tub in the housing. This rear end is adjacent to the opening when viewed in the radial direction to the axis of rotation. This also reduces the geometric complexity of the components and enables particularly direct coupling. Because this rear end adjoins the opening, it can be avoided that the air guide channel, viewed in the depth direction, extends further back than the opening. Undesirable air congestion or air turbulence can therefore be avoided in the air duct. This is particularly advantageous for flushing the air control system.
  • the air guide channel viewed in the depth direction, begins at the depth of the opening or is the rear end there, the introduction of liquid further back into the air guide system, viewed in the depth direction, can be avoided.
  • the flow concept for the liquid is therefore particularly effective and efficient. This has an advantageous effect on the flushing result of the air control system.
  • a rear end of the air duct is essentially at the same depth position as a rear edge of the opening.
  • the air guide duct essentially does not protrude backwards beyond the opening in the depth direction.
  • the air duct has a tubular duct section.
  • This can be a sewer nozzle.
  • the channel section in particular forms an end region of the air guide channel. This end region ends, in particular directly, at the opening of the circumferential wall.
  • the channel section preferably has a section longitudinal axis.
  • the channel section can be arranged such that its longitudinal axis is oriented radially to the axis of rotation. In particular, it is then perpendicular to the axis of rotation. It is then arranged in particular coaxially with the hole axis of the opening in the circumferential wall.
  • the channel section is oriented obliquely.
  • the longitudinal axis of the section is then oriented tangentially.
  • there is an angle between the hole axis of the opening in the circumferential wall and the section longitudinal axis greater than 90° and less than 180°, in particular between greater than 90° and 130°.
  • the household appliance is only designed as a washing machine.
  • the air guidance system is designed to introduce warm air into the drum at least to reduce odor and/or to reduce germs and/or to heat the laundry during the washing process of the laundry to be cleaned in the drum.
  • the air control system is not there to dry the laundry that has already been cleaned. The air control system in a pure washing machine therefore does not have a drying function.
  • the household appliance is a washer-dryer.
  • the air guidance system is then designed at least to introduce warm air into the drum during a laundry drying process of the washer-dryer to dry the washed laundry.
  • it can then also have the functionalities mentioned above, as explained for a washing machine, during a washing process of the washer-dryer.
  • a rinsing process of the household appliance for rinsing the air duct system is coupled with a washing process of the household appliance, which is intended for washing laundry.
  • liquid present during the washing process in particular lye
  • the liquid that is already present and required namely the lye
  • the rinsing process can be carried out at a specific time period during the washing process.
  • washing process in which the drum is rotated at a specific speed, then the rinsing process is carried out automatically.
  • a rinsing spin is carried out during the washing process.
  • lye can be separated from the amount of lye present in the lye container.
  • fresh water can then be supplied to dilute the existing lye. This can be used to dilute leftover detergent.
  • the speed of the drum can be adjusted so that the above-mentioned processes are carried out.
  • this speed is advantageously so high that the corresponding centrifugal forces occur in order to throw the lye from the opening radially and/or tangentially outwards into the air guidance system.
  • this is a speed that is set anyway when the drum rotates during a spin cycle in the washing process.
  • it is therefore not necessary to set a specific, possibly higher, speed than has previously been set in conventional washing processes in order to be able to spin the liquid outwards through the opening.
  • This also advantageously makes it possible for conventional washing processes, in particular with regard to spinning, not to have to be changed in order to be able to carry out the proposed concept. This also makes it very easy to implement into existing concepts.
  • an above-mentioned channel section of an air duct is oriented with its longitudinal axis at an angle between greater than 90° and less than 180° to the hole axis of the opening in the circumferential wall, the air duct system can be flushed depending on the direction of rotation of the laundry drum around the axis of rotation. Because then, due to this oblique orientation of the channel section, the tangential outward throwing of the liquid can take place in a first direction of rotation of the laundry drum, in particular in the direction or essentially in the direction of the section's longitudinal axis into the channel section. Whereas in the other second direction of rotation of the laundry drum, the tangential outward spinning of the liquid only leads to a small entry into the air guidance system, since it is thrown outwards at a relatively acute angle to the longitudinal axis of the section.
  • the household appliance can be set up so that it can carry out a rinsing process for rinsing the air duct system independently of a washing process for washing laundry and/or a drying process for drying washed laundry.
  • the liquid is then introduced through the opening during the rinsing process for rinsing the air guide system as the drum rotates due to the centrifugal forces.
  • the corresponding liquid is passed into the tub so that it can then be thrown radially through the opening into the air control system.
  • the household appliance can, in addition to the user-selectable programs for a washing process and/or drying process, also have a separate program for the rinsing process of the air duct system.
  • the rinsing process can also be included in the washing and/or drying process. This has the particular advantage that the liquid required for washing or the liquid resulting from drying can be used to flush the air conduction system and no additional liquid required for flushing has to be supplied.
  • the air control system is coupled to the opening in a fluid-conducting manner, so that when the drum rotates above a threshold speed, liquid in the tub can be directed, in particular spun, outwards to the opening and from there into the air control system.
  • the threshold speed is preferably greater than 100 rpm. In particular, it is greater than 130 rpm. It can be between 100 rpm and 300 rpm.
  • the fan of the air guidance system is activated at least temporarily during a wash cycle.
  • the liquid thrown into the air control system is further distributed in the air control system by this activated and thus rotating fan wheel of the fan.
  • This makes particularly efficient flushing of large parts of the air duct system, in particular the entire air duct system, possible in an improved manner.
  • a ring of liquid is created between the drum and the tub by the spinning and the centrifugal force that occurs on the liquid and that the liquid is thrown into the air control system in a very targeted and metered manner during the opening due to these centrifugal forces can.
  • a heater of the air control system which is preferably present, is deactivated during a flushing process. This can prevent the liquid from being heated up undesirably by the heater, which could potentially result in tensions in the heater, especially on the surface, due to temperature gradients. This also improves the prevention of undesirable corrosion of the heater. In addition, it can also be avoided that detergent residues or limescale could remain or build up on the heater when it is activated and thus heats accordingly. Any evaporating lye could also lead to disadvantages in the air control system.
  • This process allows the air duct system to be flushed very efficiently and as needed. It is not a separate, especially active one Delivery unit, such as a pump and/or a nozzle and/or a valve, is no longer required in order to be able to transport the liquid into the air guidance system.
  • the liquid is introduced into the air guidance system automatically due to the forces acting on the liquid as a result of the centrifugal action and the opening arranged on the peripheral wall of the tub, which is coupled to the air guidance system in a fluid-conducting manner. This means that independent rinsing can be provided without additional components.
  • a heater of the air control system is deactivated when a flushing process is carried out.
  • Advantageous embodiments of the household appliance are to be viewed as advantageous embodiments of the method.
  • components alone or in active connection enable the individual process steps.
  • top, bottom, front, “back”, “horizontal”, “vertical”, “depth direction”, “width direction”, “height direction” indicates the positions given when the household appliance is used and positioned as intended Orientations given.
  • FIG. 1 an exemplary embodiment of a household appliance 1 for caring for laundry items is shown in a vertical sectional view.
  • the vertical section is spanned by the height direction (y-direction) and the depth direction (z-direction) of the household appliance 1.
  • the household appliance 1 can only be designed as a washing machine or a washer-dryer.
  • the household appliance 1 has a housing 2.
  • a tub 3 and a drum 4 of the household appliance 1 are arranged in the housing 2.
  • the drum 4 is separate from the tub 3. It is included in the tub 3.
  • the drum 4 is rotatably mounted about an axis of rotation A, which is horizontally oriented here.
  • a motor 5 is provided for this purpose, which is connected to a shaft 7 of the drum 4, for example by means of a belt 6.
  • the household appliance 1 also has a drainage system 8. With the drainage system 8, liquid is drained from the tub 3.
  • the drainage system 8 has a pump 9.
  • the drainage system 8 has a drainage opening 10, which is located on a Circumferential wall 11 of the tub 3 is formed. This drain opening 10 is formed in a lower half of the circumferential wall 11 when viewed in the height direction. In particular, it is formed at a lowest point of the circumferential wall 11 in the height direction.
  • the circumferential wall 11 is designed to run completely around the axis of rotation A. It can also be referred to as a hollow cylindrical jacket wall of the tub 3.
  • the liquid is conveyed out of the household appliance 1 with this drainage system 8, as is also characterized by a drainage hose 12.
  • the drum 4 has an opening 13 on the front.
  • the tub 3 also has an opening 14 on the front. These are in particular loading openings through which items of laundry can be removed from the drum 4 or introduced into the drum 4.
  • the household appliance 1 also has an air guidance system 15.
  • the air guidance system 15 is designed to supply air, in particular heated air, into the drum 4, so that items of laundry 16 placed therein are used to reduce germs and/or to reduce odors and/or to Heating of the laundry items 16 are applied accordingly during a washing process.
  • the air guidance system 15 preferably has an air guidance duct 17. This is at least partially arranged above the tub 3 when viewed in the height direction.
  • the air guidance system 15 has a fan 18.
  • the air guidance system 15 has a heater 19. Both the fan 18 and the heater 19 are arranged in the air duct 17 in one exemplary embodiment.
  • the air guide duct 17 is here, for example, with a section 20, viewed in the depth direction, guided in front of the tub 3 and the drum 4 and is formed with an outlet opening 21 in front of the openings 13 and 14. This allows air L to be passed directly into the drum 4 via the openings 13 and 14.
  • the air guidance system 15 serves to direct heated air into the drum 4 during a drying process, so that laundry 16 that has already been cleaned can then be dried.
  • the circumferential wall 11 has an opening 22.
  • the opening 22 is therefore an opening through the circumferential wall 11.
  • the opening 22 can also be referred to as a circumferential wall opening.
  • the at least one opening 22 is in an upper half of the height of the circumferential wall 11, viewed in the height direction. It can, for example, be formed at least in some areas at an upper first point 23 of the circumferential wall 11. This is particularly true when viewing in the sectional plane.
  • This opening 22 is also three-dimensional due to the convex curvature of the circumferential wall 11 and in this respect preferably also extends somewhat to the left and right sides (when viewed in the direction of the axis of rotation A) to this uppermost point 23.
  • this opening 22 is in a rear position when viewed in the depth direction
  • Half of the circumferential wall 11, in particular in a rear third of the circumferential wall 11, is formed.
  • the air guidance system 15 is directly coupled to this opening 22 in a fluid-conducting manner.
  • a rear end 24 of the air guidance system 15, in particular of the air guidance duct 17, is arranged in the area of the opening 22 when viewed in the depth direction.
  • the fan 18 is arranged in the area of this rear end 24 of the air duct 17. It is therefore preferably arranged to overlap with the radial opening 22 when viewed in the depth direction. In the radial direction and thus perpendicular to the axis of rotation A, the fan 18 is arranged immediately adjacent to the opening 22.
  • the heater 19 is arranged downstream of the fan 18 in the flow direction.
  • This opening 22 is in particular also part of a flushing system 25 of the household appliance 1.
  • the flushing system 25 is intended to flush the air guidance system 15 with liquid at least in some areas.
  • This opening 22 is part of this flushing system 25.
  • the flushing system 25 is designed here without an activatable delivery unit, such as a pump and/or a nozzle and/or a valve.
  • the flushing system 25 is designed in such a way that when the drum 4 rotates about the axis of rotation A due to the centrifugal force, liquid in the tub 3 can be directed outwards towards the opening 22 and from there can be conducted independently and directly into the air guidance system 15.
  • the air guidance system 15 can be flushed at least in some areas in such a way that the drum 4 is rotated about the axis of rotation A.
  • liquid that is arranged in the tub 4 is thrown outwards radially to the axis of rotation A. This outward spinning occurs in particular due to the rotation of the drum 4.
  • the outwardly thrown liquid then exits or is introduced from the tub 3 through at least one opening 22 into the air guide system 15, which is coupled to the opening 22 in a fluid-conducting manner
  • an independent flushing of the air control system 15 at least in areas with the liquid introduced into the air control system 15 by the centrifugal forces.
  • the fan 18 can be activated at least temporarily during such a flushing process. This means that the liquid that enters independently is passed on in the air control system 15, so that other areas of the air control system 15 can also be rinsed in an improved manner.
  • the air guide duct 17 has a channel section 26.
  • the channel section 26 is formed like a tube. He can be a stud.
  • the channel section 26 is in particular an end part of the air guide channel 17. In particular, it has the rear end 24.
  • the channel section 26 ends in particular directly at the opening 22.
  • the channel section 26 has a section longitudinal axis 27.
  • a hole axis 28 of the opening 22 is also shown. Here it is oriented perpendicular to the axis of rotation A.
  • the channel section 26 is oriented radially to the axis of rotation A.
  • the section longitudinal axis 27 is then also oriented perpendicular to the axis of rotation A in the plane of the figure. It is then oriented coaxially to the hole axis 28.
  • Fig. 2 is a schematic front view of components of the household appliance 1 according to Fig. 1 shown. The particularly strictly radial orientation of the channel section 26 is shown here.
  • FIG. 3 a schematic front view of a further exemplary embodiment of a household appliance 1 is shown.
  • the components here are as in Fig. 2 shown.
  • the orientation of the channel section 26 can be seen here.
  • the opening 22 is not at the top point 23, but is offset to the side, but in the upper half of the height of the circumferential wall 11.
  • the channel section 26 is not coaxial with its section longitudinal axis 27 to the hole axis 28 but at an angle ⁇ to it. This angle ⁇ can be between greater than 90° and less than 180°.
  • the section longitudinal axis 27 is oriented in the height direction of the household appliance 1 and is therefore vertical. However, this is just one possible example.
  • liquid F is advantageously thrown into the air guidance system 15.
  • the tangential outward spinning here takes place in a very directed manner into the channel section 26. This makes flushing the fan 18 particularly advantageous.
  • the rinsing process can also be influenced in a defined manner depending on the direction of rotation of the drum 4.
  • FIG. 4 a further schematic representation of an exemplary embodiment of a household appliance 1 is shown. In contrast to Figs. 2 and 3 Another possible orientation and position of the channel section 26 is shown here.
  • the fan 18 is activated at least temporarily during a flushing process, so that the fan wheel is at least temporarily driven by a motor, for example to start up. It is also possible that the injected liquid F causes the fan wheel to rotate

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP23188502.1A 2022-08-17 2023-07-28 Appareil ménager pour l'entretien de pièces de linge avec système de rinçage spécifique pour un système de guidage d'air, ainsi que procédé Pending EP4324973A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022208534.5A DE102022208534A1 (de) 2022-08-17 2022-08-17 Haushaltsgerät zur Pflege von Wäschestücken mit spezifischem Spülsystem für ein Luftleitsystem, sowie Verfahren

Publications (1)

Publication Number Publication Date
EP4324973A1 true EP4324973A1 (fr) 2024-02-21

Family

ID=87519945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23188502.1A Pending EP4324973A1 (fr) 2022-08-17 2023-07-28 Appareil ménager pour l'entretien de pièces de linge avec système de rinçage spécifique pour un système de guidage d'air, ainsi que procédé

Country Status (3)

Country Link
EP (1) EP4324973A1 (fr)
CN (1) CN117587620A (fr)
DE (1) DE102022208534A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1353004A1 (fr) 2002-04-09 2003-10-15 Bonferraro S.p.A. Machine à laver avec circuit de séchage auto-nettoyant
US20050223504A1 (en) * 2004-04-07 2005-10-13 Lg Electronics Inc. Washing machine having drying function and method for controlling the same
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