EP4556618A1 - Lave-linge avec système de dosage automatique - Google Patents
Lave-linge avec système de dosage automatique Download PDFInfo
- Publication number
- EP4556618A1 EP4556618A1 EP24204465.9A EP24204465A EP4556618A1 EP 4556618 A1 EP4556618 A1 EP 4556618A1 EP 24204465 A EP24204465 A EP 24204465A EP 4556618 A1 EP4556618 A1 EP 4556618A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dosing
- receptacle
- drawer
- washing machine
- housing
- 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
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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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
- D06F39/022—Devices for adding soap or other washing agents in a liquid state
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- 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
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/37—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of metering of detergents or additives
-
- 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
- D06F2103/20—Washing liquid condition, e.g. turbidity
- D06F2103/22—Content of detergent or additives
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/42—Detergent or additive supply
Definitions
- the subject of the present invention is a washing machine comprising an automatic dosing system for dispensing a laundry detergent into the drum.
- a washing machine comprises a housing which accommodates a tub with a rotating drum to receive the laundry to be washed.
- a laundry detergent in liquid or powder form is added to a washing machine for efficient laundry washing.
- a laundry detergent is normally added to a washing machine through a dosing drawer that is generally arranged in the upper portion of a washing machine and is in fluid communication with the tub and the drum.
- washing machines are provided with an automatic dosing system that dispenses an adequate amount of the laundry detergent into the drum, the laundry detergent being in liquid form.
- a further advantage of the automatic dosing system is the fact that the laundry detergent is placed in a container of a size that can accommodate a larger amount of laundry detergent for multiple washes, without the user having to add the laundry detergent at each washing.
- At least one, preferably two laundry detergent containers are normally arranged within a dosing drawer.
- the volume of the container should preferably be as large as possible to allow for as many washes as possible.
- the dosing drawer In order to meet this requirement, the dosing drawer must be configured in such a way that substantially the entire space of the dosing drawer is occupied by the automatic dosing containers.
- the automatic dosing containers are space-constrained so that at least one compartment and/or container is also provided in the dosing drawer to receive a specific amount of manually added laundry detergent for a single wash. If it is not desired to have a reduced volume of the container for the automatic dosing of the laundry detergent, the laundry detergent for manual dosing is added directly into the laundry drum.
- Such a solution does not provide for manual adding of several different types of laundry detergents and/or laundry care agents, such as a pre-wash and main wash detergent, a softener.
- a pre-wash and main wash detergent such as a pre-wash and main wash detergent, a softener.
- the problem of size of laundry detergent containers in both automatic and manual dosing is particularly pronounced in slim depth washing machines.
- EP 3786340 A1 discloses a washing machine provided with an automatic dosing system having an insertable receptacle for holding liquid laundry detergents in the dosing drawer and a compartment for manual dosing of laundry detergents in the middle portion of the drawer.
- the size of the receptacle is thus rather limited, resulting in a very limited amount of liquid laundry detergents for automatic dosing.
- the technical problem is to configure a washing machine provided with a system to automatically dose a laundry detergent to a drum, the laundry detergent containers being arranged in a pull-out dosing drawer, wherein the pull-out dosing drawer will be configured to receive a sufficient amount of laundry detergent for as many washes as possible within the automatic dosing system, and at the same time, when the laundry detergent is manually added, the drawer will be capable of receiving different types of laundry detergents in an amount required for a single wash.
- the external dimensions and the basic design of the dosing drawer must remain unchanged. The design of the dosing drawer must at the same time be simple and economically viable.
- the technical problem is solved by the washing machine provided with a system to automatically dose a laundry detergent to a drum and provided with laundry detergent containers in a pull-out dosing drawer, the main characteristics of which are defined in claim one.
- the washing machine with an automatic dosing system comprises a housing; a tub arranged in the housing and accommodating a concentrically rotating drum to receive the laundry to be washed; a control panel to operate a control unit in the upper portion of the housing; a dosing receptacle to receive a laundry detergent in the upper portion of the washing machine housing, comprising a dosing receptacle housing, a pull-out dosing drawer arranged in the dosing receptacle housing, and a rinse lid covering the dosing receptacle housing from the top, the dosing drawer comprising a removable automatic laundry detergent dosing receptacle having a base and walls enclosing the bottom, the removable receptacle being configured to fill the dosing drawer, the dosing receptacle comprising a sensor, preferably a magnetic sensor, arranged on the inner wall of a rear wall of the dosing receptacle housing to detect the presence of the removable receptacle in the do
- the receptacle is formed as a negative form of the dosing drawer and is dimensionally congruent to the dosing drawer to engage it in a tight and detachable manner.
- the dosing drawer consists of at least two compartments.
- the receptacle consists of at least two materially-locked containers and is oblong, substantially cuboid-like in shape.
- the container is provided in the bottom portion of the rear wall with an outlet and a non-return valve arranged in said outlet.
- the dosing receptacle housing is provided with a switch valve and at least one pump for pumping the laundry detergent, said pump and said switch valve being included in fluid communication.
- the fluid communication connects the container with the dosing receptacle housing.
- the container has a top side configured as a removable lid in which an opening is arranged, through which the container is filled with a laundry detergent, and is covered by a lid.
- the washing machine is of the type to have the dosing receptacle for holding the laundry detergent arranged in the upper portion of the washing machine and the washing machine is a front-load washing machine.
- the washing machine with an automatic dosing system of the present invention allows for laundry washing with the laundry detergent dispensed into the washing machine drum by the automatic dosing system or manually.
- the washing machine comprises a conventionally formed dosing drawer that allows manual dosing of various laundry detergents and laundry care agents in required amounts. It also comprises a detachable receptacle insertable into the dosing drawer in tight engagement without use of any additional tools, allowing storage of a large amount of liquid laundry detergent, which is sufficient for a large number of washes. Insertion of the receptacle into the dosing drawer and its removal thereof is simple, no additional tools are needed.
- a washing machine 1 with an automatic dosing system comprises a housing 2, in which a tub 3 accommodating a concentrically rotating drum 4 to receive the laundry to be washed is arranged.
- the user has access to the tub 3 with the drum 4 through a door 5 that closes the tub 3 and thus the drum 4.
- a control panel 7 having a control unit to operate the washing machine and a dosing receptacle 8 for receiving a laundry detergent, said dosing receptacle being preferably arranged on the left side of the upper part of the washing machine 1.
- the dosing receptacle 8 comprises a housing 9 that is attached in any known way to the housing 2 of the washing machine, a pull-out dosing drawer 10 arranged in the housing 9, and a rinse lid 11 covering the dosing receptacle housing 9 from the top and accommodating ducts to supply rinse water which is dispensed to the dosing drawer 10 in a washing cycle with manual adding of a laundry detergent.
- the dosing drawer 10 is substantially box-shaped and has a base 10.1, two lateral walls 10.2, 10.3 and a front wall 10.4 to which a handle member 32 is attached to pull out and insert the drawer.
- the pull-out dosing drawer 10 is open at the rear side.
- the dosing drawer 10 comprises at least one longitudinal partition 25 forming two compartments 27, 28, according to the preferred embodiment two substantially longitudinal partitions 25, 26 forming three compartments 27, 28, 29.
- the dosing drawer 10 configured in this way accommodates a removable receptacle 14 having a base 14.1 and walls 14.2 enclosing the base 14.1, the removable receptacle being configured to fill the dosing drawer 10.
- the removable receptacle 14 is substantially configured as a negative form of the dosing drawer 10 so as to be dimensionally compatible with the dosing drawer 10 in such a way that it fits it in a tight yet removable manner.
- the base 14.1 of the removable receptacle is configured as a substantially flat face or with at least one longitudinal concavity 14.3, 14.4 engaging at least one longitudinal partition 25, 26 and/or at least one concavity 14.5, if an additional element is arranged in the dosing drawer 10.
- the partitions 25, 26 prevent the removable receptacle 14 from moving inside the dosing drawer 10.
- the removable receptacle 14 consists of at least two materially-locked containers 12, 13 and is oblong, substantially cuboid-like in shape.
- the containers 12, 13 are arranged next to each other and intended to hold a viscous laundry detergent for laundry washing in the laundry detergent automatic dosing mode.
- a respective container 12, 13 has a top side 15, 16 configured as a removable lid.
- an opening 17, 17' is arranged for filling the container 12, 13 with a liquid laundry detergent and is closed by a lid 18, 18' of any known design, such as a removable lid, a slider, a hinged lid or other known designs.
- a respective container 12, 13 is provided in its bottom portion of the rear wall 19, 19' with an outlet 21, 21' that is in fluid communication with the dosing receptacle housing 9 and further with the tub 3 and the drum 4 to transfer the laundry detergent.
- the outlet 21, 21' accommodates a non-return valve 22, 22' that prevents the laundry detergent from leaking from the container 12, 13 when the latter is pulled out of the dosing drawer 10.
- a switch valve 20 is externally arranged, said valve being included in fluid communication of the container 12, 13 with the dosing receptacle housing 9.
- a pump 30 in communication with the switch valve 20 is arranged on the dosing receptacle housing 9.
- the control unit controls the switch valve 20 to open and close the fluid communication between the pump 30 and a respective non-return valve 22, 22'.
- the operation of the pump 30 creates negative pressure of a predetermined value in the fluid communication, which results in the selected non-return valve 22, 22' to open and the liquid laundry detergent to be pumped from the selected container 12, 13 via fluid communication to the dosing receptacle housing 9 and further into the drum 4.
- the non-return valve 22, 22' closes.
- the rear wall 23 of the dosing receptacle housing is internally provided with a sensor 24, 24' detecting the presence of the removable receptacle 14.
- the sensor 24, 24' may be a magnetic sensor, a push-pull sensor or a sensor of any known type.
- the removable receptacle 14 with the containers 12, 13 is inserted in the dosing drawer 10 in a tight and detachable manner.
- the sensor 24, 24' transmits a signal of the presence of the removable receptacle 14 to the control unit to control the washing machine which, according to the washing process, initiates the automatic dosing of the laundry detergent.
- the user wants to manually dose the laundry detergent, he/she completely pulls out the dosing drawer 10 from the dosing receptacle housing 9 and the washing machine.
- the removable receptacle 14 is pushed out of the dosing drawer 10 through at least one recess 31 in the base 10.1 and/or lateral wall 10.2, 10.3 of the dosing drawer.
- the dosing drawer 10 without the removable receptacle 14 is re-inserted into the dosing receptacle housing 9.
- the compartments 27, 28, 29 can be filled with a suitable laundry detergent in powder and/or liquid form.
- a respective compartment 27, 28, 29 is dimensioned to receive the entire amount of the laundry detergent and/or laundry care agent required for a certain washing process.
- the sensor 24, 24' transmits the data on the absence of the removable receptacle 14 to the control unit which activates the washing programme with the manual dosing of the laundry detergent, which triggers the supply of rinse water to the dosing receptacle rinse lid 11.
- the washing machine of the invention renders it possible to wash the laundry to be washed using automatic dosing of the laundry detergent or manual dosing of the laundry detergent to the dosing receptacle.
- a method for the operation of the washing machine with automatic laundry detergent dosing is carried out in the following sequential steps:
- a method for the operation of the washing machine with manual laundry detergent dosing is carried out in the following sequential steps:
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI202300147A SI26564A (sl) | 2023-11-16 | 2023-11-16 | Pralni stroj z avtomatskim dozirnim sistemom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4556618A1 true EP4556618A1 (fr) | 2025-05-21 |
Family
ID=93378933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP24204465.9A Pending EP4556618A1 (fr) | 2023-11-16 | 2024-10-03 | Lave-linge avec système de dosage automatique |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP4556618A1 (fr) |
| SI (1) | SI26564A (fr) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200087835A1 (en) * | 2018-09-14 | 2020-03-19 | Electrolux Appliances Aktibolag | Method and apparatus for cleaning laundry |
| EP3786340A1 (fr) | 2019-08-29 | 2021-03-03 | LG Electronics Inc. | Tiroir et machine de traitement de vêtements le comprenant |
| US20210332522A1 (en) * | 2020-04-24 | 2021-10-28 | Lg Electronics Inc. | Laundry treatment apparatus |
| EP3789528B1 (fr) * | 2019-09-05 | 2022-03-02 | PAS Deutschland GmbH | Cuve de rinçage pour une machine à laver ainsi que machine à laver |
-
2023
- 2023-11-16 SI SI202300147A patent/SI26564A/sl active IP Right Grant
-
2024
- 2024-10-03 EP EP24204465.9A patent/EP4556618A1/fr active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200087835A1 (en) * | 2018-09-14 | 2020-03-19 | Electrolux Appliances Aktibolag | Method and apparatus for cleaning laundry |
| EP3786340A1 (fr) | 2019-08-29 | 2021-03-03 | LG Electronics Inc. | Tiroir et machine de traitement de vêtements le comprenant |
| EP3789528B1 (fr) * | 2019-09-05 | 2022-03-02 | PAS Deutschland GmbH | Cuve de rinçage pour une machine à laver ainsi que machine à laver |
| US20210332522A1 (en) * | 2020-04-24 | 2021-10-28 | Lg Electronics Inc. | Laundry treatment apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| SI26564A (sl) | 2025-05-30 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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