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WO-2026095897-A1 - A WASHING MACHINE WITH IMPROVED CLEANING PERFORMANCE

WO2026095897A1WO 2026095897 A1WO2026095897 A1WO 2026095897A1WO-2026095897-A1

Abstract

The present invention relates to a washing machine (1) comprising a body (2); a tub (3) which is disposed in the body (2) and which receives the washing water used in the washing process; a drum (4) which is disposed in the tub (3); a gap (5) which remains between the tub (3) and the drum (4); a housing (6) which is provided on the tub (3) and which opens into the gap (5); at least one agitator (10) which is disposed in the housing (6) and which has at least one first magnetic member (11); and at least one actuator (9) which is disposed on the outer side of the tub (3) so as to be in the vicinity of the housing (6); which has a motor (7) and at least one second magnetic member (8) suitable for being rotated by the motor (7) and which provides that the agitator (10) is rotated by means of magnetic interaction between the second magnetic member (8) and the first magnetic member (11).

Inventors

  • TAKIT, Arda
  • ATAGUN, Cahit
  • AY, Oguz
  • AYAS, RECEP
  • ERGEN, YAREN

Assignees

  • ARCELIK ANONIM SIRKETI

Dates

Publication Date
20260507
Application Date
20250731
Priority Date
20241030

Claims (10)

  1. 1. A washing machine (1) comprising a body (2); a tub (3) which is disposed in the body (2) and which receives the washing water used in the washing process; a drum (4) which is disposed in the tub (3); a gap (5) which remains between the tub (3) and the drum (4); a housing (6) which is provided on the tub (3) and which opens into the gap (5); at least one agitator (10) which is disposed in the housing (6) and which has at least one first magnetic member (11); and at least one actuator (9) which is disposed on the outer side of the tub (3); which has a motor (7) and at least one second magnetic member (8) suitable for being rotated by the motor (7) and which provides that the agitator (10) is rotated by means of magnetic interaction between the second magnetic member (8) and the first magnetic member (11), characterized by the agitator (10) having a center (12) and a plurality of fins (13) extending outward from the center (12); and at least one bearing (14) having a circular form, provided on the housing (6) and wherein the fins (13) are borne from the ends thereof so as to guide the rotational movement of the agitator (10).
  2. 2. A washing machine (1) as in Claim 1, characterized by the first magnetic member (11) having a hub (15) which is provided at the center (12) and a plurality of arms (16) which extend from the hub (15) into the fins (13).
  3. 3. A washing machine (1) as in Claim 1 or Claim 2, characterized by a plurality of ribs (17) in the form of protrusions which are provided on the fins (13).
  4. 4. A washing machine (1) as in any one of the above claims, characterized by an annular bearing member (18), to which the ends of the fins (13) are connected, and which is disposed in the bearing (14) so as to be rotated in the bearing (14).
  5. 5. A washing machine (1) as in any one of the above claims, characterized by the fins (13) which extend radially outward from the center (12) and which have substantially rodshaped form.
  6. 6. A washing machine (1) as in Claim 5, characterized by the agitator (10) which has two fins (13) extending from the center (12) in opposite directions along the same axis.
  7. 7. A washing machine (1) as in any of the above claims, characterized by the fins (13) which are configured to rotate about their own axes. 30
  8. 8. A washing machine (1) as in any one of the above claims, characterized by the housing (6) which has a base (19), a circumferential wall (20) surrounding the base (19), and a lid (21) at least partially perforated to ensure the fluid communication with the gap (5).
  9. 9. A washing machine (1) as in Claim 8, characterized by the bearing (14) which is configured in the form of a circular groove located between the circumferential wall (20) and the lid (21).
  10. 10. A washing machine (1) as in any one of the above claims, characterized by at least one supply line (23) which is provided on the tub (3), which has a supply end (22) opening into the housing (6), and which is configured to provide the fluid transmission into the housing (6) from the supply end (22).

Description

7.3630 DESCRIPTION A WASHING MACHINE WITH IMPROVED CLEANING PERFORMANCE The present invention relates to a washing machine in which the cleaning performance is improved by effectively dissolving cleaning agents in the washing water. In washing machines, cleaning agents such as detergent and softener are generally loaded into a dispenser disposed at the upper portion of the body. The water supplied into the dispenser sweeps the cleaning agents and flows into the gap between the tub and the drum, dissolving the agents in the water. By rotating the drum, the laundry in the drum is agitated in the washing water so as to be cleaned. The cleaning performance is directly related to the dissolution rate of the detergent in the water. However, when the washing water is cold, the drum movement is limited, or an excessive amount of detergent is used, the dissolution rate of the cleaning agent decreases, which in turn reduces the amount of detergent reaching the laundry and causes a drop in cleaning performance. Therefore, manufacturers have developed various embodiments which enable the detergent and the washing water to be mixed by movable agitators, such as impellers driven by a motor, in order to increase the dissolution rate of the cleaning agent and the amount of detergent reaching the laundry. However, these embodiments generally require complex structures for motor insulation, which results in production difficulties and increased cost. Accordingly, there is a need for a secure arrangement which enables the agitator to be driven in a stable and quiet manner. In the state of the art International Patent Application No. W02008119630A1, a washing machine is disclosed, comprising an agitator which ensures the mixing of the washing water in the tub. In the state of the art European Patent Application No. EP3850144A1, a washing machine is disclosed, comprising components which ensure the mechanical breaking of the detergent capsules. The aim of the present invention is the realization of a washing machine comprising an agitator which can be positioned in a simple and secure manner. The washing machine realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a tub wherein the washing water is received; a drum which is disposed in the tub and which is rotated about a horizontal axis by means of a drum motor; a gap which remains between the drum and the tub; a housing which is 7.3630 provided on the tub so as to face the gap; an agitator which is positioned in the housing and which has a center, a plurality of fins of equal length connected from one end to the center and a first magnetic member with at least one magnet; an actuator which is positioned outside the tub so as to be aligned with the housing and which has a motor and a second magnetic member with at least one magnet so as to be rotated by the motor to transmit the rotational movement magnetically to the first magnetic member; and at least one bearing which is provided on the housing, wherein the distal ends of the fins are borne, and which has a circular groove configured to guide the rotational movement of the agitator about an axis passing through the center. The agitator is rotated in the housing about a rotational axis perpendicular to the fins and passing through the center, by means of the magnetic force applied by the actuator from outside the tub to the first magnetic member. By magnetically rotating the agitator without a mechanical connection requiring an opening in the tub, the motor insulation is provided in a simple manner. Each fin extends into the bearing from the end thereof. The agitator is supported only from the ends of the fins, and the connection thereof with the housing is provided by means of the bearing. Thus, unsteady operational problems such as jamming, accumulation, etc. which may arise due to fixed centering are eliminated. Moreover, the sliding bearing support minimizes friction during the rotation of the agitator, thereby preventing noise generation. Thus, the motor insulation is achieved in a simple manner, and the stable and quiet operation of the agitator is ensured. In an embodiment of the present invention, the first magnetic member is manufactured from a ferromagnetic metal and has a hub disposed in the center and a plurality of arms extending from the hub into each fin. The first magnetic member is preferably manufactured from iron, cobalt, nickel, or an alloy thereof, and remains entirely in the center and the arms. Thus, the rotational movement is enabled to be transmitted to all arms so as to ensure the balanced rotation of the agitator and prevent the corrosion of the first magnetic member by isolating the same from contact with water. In another embodiment of the present invention, on the fins, ribs are provided in the form of protrusions extending outward perpendicularly from the fins. The ribs sweep away lint, detergent residue, or s