Water-bearing household appliance

Abstract

The invention relates to a water-conducting household appliance, in particular a washing machine or a washer-dryer, comprising a laundry drum (1) mounted in a housing, a suds container (3) arranged around the laundry drum (1), and a door (5) provided for closing a laundry filling opening in the housing and the laundry drum (1). A dosing container (7) for receiving a detergent is provided in the door (5). A flow path (71, 57, 31) for a suds solution produced by mixing the detergent in the dosing container (7) with water leads from the dosing container (7) into the suds container (3), bypassing the laundry drum (1).

Description

[0001] The invention relates to a water-conducting household appliance, and in particular to a water-conducting household appliance with a detergent dosing system in the appliance door.

[0002] The applicant markets water-based household appliances, in particular washing machines and washer-dryers, with a detergent dosing system in the appliance door. The detergent is dispensed from a dosing container in the appliance door directly into the washing drum of the water-based household appliance, where a washing process then takes place. This poses the problem that the use of powdered detergent is not possible, as chemical reactions occur between an incompletely dissolved washing powder and the laundry to be washed, which can lead to so-called bleach stains on the laundry. For this reason, only liquid detergents can be used with such detergent dosing systems in the appliance door.

[0003] This gives rise to the problem of creating a water-conducting household appliance with a detergent dosing system in the appliance door that allows the use of a powdered detergent.

[0004] A water-conducting household appliance according to the invention, in particular a washing machine or a washer-dryer, has a laundry drum mounted in a housing, a tub arranged around the laundry drum, and a door provided for closing a laundry filling opening in the housing and the laundry drum. A dosing container for holding a detergent is provided in the door. A flow path for a lye produced by mixing the detergent with water in the dosing container leads from the dosing container into the tub, bypassing the laundry drum.

[0005] Because the flow path of the lye from the dosing container to the lye container bypasses the washing drum, the flow path is longer than in conventional water-based household appliances. This allows more time for the washing powder to dissolve before the lye comes into contact with the laundry. This prevents undissolved washing powder from coming into contact with the laundry in the washing drum. This ensures that undesirable bleaching effects due to contact of the undissolved washing powder with the laundry do not occur.

[0006] Preferably, when the water-conducting household appliance is in use, the rotational axis of the washing drum can be horizontal. The flow path of the lye can lead into a region of the lye container located below the washing drum.

[0007] This ensures that the lye flows from the dispenser in the door into the interior of the water-using household appliance and downwards, without any risk of the lye entering the washing drum before reaching the lye container below the drum. In the described case, the water-using household appliance is designed as a front-loader. However, it should be noted that even with a top-loader design with an upward-facing laundry opening and a vertical rotation axis of the washing drum, it is possible to direct the lye into a section of the lye container below the drum, bypassing the drum.

[0008] A door seal with a swing fold can be provided on the housing at the laundry loading opening. When the water-conducting household appliance is in use, a radially lowest area defined by the swing fold can be connected to a section of the tub located below the laundry drum via a hole in the door seal.

[0009] The hole in the door seal ensures that the flow path reliably bypasses the laundry drum. The lye enters the interior of the water-conducting household appliance from the area defined radially below the swing fold through the hole in the door seal and flows into the area of ​​the lye container located below the laundry drum. This ensures reliable dissolution of powdered detergent before the laundry comes into contact with the lye.

[0010] Advantageously, one edge of the washing drum can be supported by a circumferential web in the door seal. This web reliably separates the flow path of the suds from the interior of the washing drum.

[0011] Thus, by creating a flow path outside the drum, undissolved detergent powder can be reliably prevented from coming into contact with the washed laundry. Although this requires creating an additional passage for the detergent solution outside the drum and the web connecting the drum to the door seal, this deterioration of the seal is extremely advantageous compared to previous applications with regard to the washing results and the possibility of using a powdered detergent with a dosing system located in the door.

[0012] An embodiment of the invention is shown purely schematically in the drawings and is described in more detail below. It shows: Fig. 1a side view of a laundry drum with a tub according to the invention; Fig. 2 a detailed view of the Fig. 1 , namely the lower right area of ​​the Fig. 1 ; Fig. 3 the same view as Fig. 2 with a flow path shown.

[0013] A water-conducting household appliance according to the invention is described by Figures 1 to 3 described.

[0014] The Fig. 1 shows a side view of a laundry drum 1 arranged in a tub 3. The laundry drum 1 is mounted in a housing (not shown) of a water-conducting household appliance, such as a washing machine or a washer-dryer, rotatably driven via a motor unit and a shaft 2. On a side arranged axially opposite the bearing, the drum has a laundry filling opening, which can be closed by a door 5 attached to the housing.

[0015] Located in the door 5 is a detergent dispenser 7 of a detergent dosing system provided in the door 5, which can hold a detergent. According to the embodiment, the detergent is a powdered detergent. However, a liquid detergent can also be used.

[0016] The laundry drum 1 is connected in a fluid-tight manner via a web 13 to a door seal 55 located at one edge of the filling opening in the housing. A swing fold 53 with a door sealing ring 51 is connected to the door seal. The structure of the connection between the laundry drum 1 and the door seal 55, and between the swing fold 53 and the door sealing ring 51, is generally known.

[0017] According to the invention, one or more through holes 57 are formed in the door seal 55 at a radially deepest point in a state of use, which through holes connect the radially deepest region of the swing fold 53 with a region 31 formed between the wall of the housing and the web 13 and the laundry drum 1 within the water-conducting household appliance.

[0018] If, during operation, the powdered detergent present in the dosing container 7 is flushed out of the dosing container using water, it flows into an area 71 below the dosing container 7 in the door and then continues to flow into the radially deepest area of ​​the swing fold 53. From there, the suds flow through the hole or holes 57 into the area 31 between the front wall of the housing and the laundry drum 1, finally flowing into the suds container 3 below the drum 1. During this flow path, which is longer than in the prior art, the washing powder dissolves in the water without leaving any residue.

[0019] The flow path of the lye is shown schematically by the dashed arrow in the Fig. 3 shown.

[0020] By the time the powder reaches the tub 3, it is reliably dissolved, allowing the lye from the tub 3 to flow through openings in the drum into the drum 1 and be used to wash the laundry present there. Because the washing powder is reliably dissolved before the lye comes into contact with the laundry in the drum, disadvantages such as bleach stains, powder residue in laundry creases, and the like, which can otherwise occur when using a powder detergent, are eliminated.

Claims

1. A water-conducting household appliance, in particular a washing machine or a washer-dryer, comprising: a laundry drum (1) mounted in a housing, a suds container (3) arranged around the laundry drum (1), a door (5) provided for closing a laundry filling opening in the housing and the laundry drum (1), and a dosing container (7) provided in the door (5) for receiving a detergent, wherein a flow path (71, 57, 31) of a suds solution produced by mixing the detergent in the dosing container (7) with water leads from the dosing container (7) into the suds container (3), bypassing the laundry drum (1).

2. Water-conducting household appliance according to claim 1, wherein in a use state of the water-conducting household appliance, an axis of rotation of the laundry drum (1) is horizontal, and the flow path (71, 57, 31) of the lye leads into a region of the lye container (3) located below the laundry drum (1).

3. Water-conducting household appliance according to claim 1 or 2, wherein a door seal (55) with a swing fold (51) is provided on the laundry filling opening on the housing, and a radially lowermost area defined by the swing fold (51) in a use state of the water-conducting household appliance is connected via a hole (57) in the door seal (55) to an area of ​​the tub (3) located below the laundry drum (1).

4. Water-conducting household appliance according to one of claims 1 to 3, wherein an edge of the laundry drum (1) is mounted in the door seal (55) via a circumferential web (13), and the web (13) separates the flow path of the lye from the interior of the laundry drum (1).

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