EP3748061B1 - Top-loading laundry treatment device, and cover opening/closing system thereof - Google Patents

Top-loading laundry treatment device, and cover opening/closing system thereof Download PDF

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Publication number
EP3748061B1
EP3748061B1 EP19747196.4A EP19747196A EP3748061B1 EP 3748061 B1 EP3748061 B1 EP 3748061B1 EP 19747196 A EP19747196 A EP 19747196A EP 3748061 B1 EP3748061 B1 EP 3748061B1
Authority
EP
European Patent Office
Prior art keywords
cover
inner drum
opening
lock tongue
closing
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
EP19747196.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3748061A1 (en
EP3748061C0 (en
EP3748061A4 (en
Inventor
Tao Chen
Kaiming Wang
Qingming ZHAI
Mingliang YU
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.)
Qingdao Haier Drum Washing Machine Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Drum Washing Machine Co Ltd
Haier Smart Home Co Ltd
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
Priority claimed from CN201810105142.2A external-priority patent/CN110130064B/zh
Priority claimed from CN201810105150.7A external-priority patent/CN110130065B/zh
Application filed by Qingdao Haier Drum Washing Machine Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Drum Washing Machine Co Ltd
Publication of EP3748061A1 publication Critical patent/EP3748061A1/en
Publication of EP3748061A4 publication Critical patent/EP3748061A4/en
Application granted granted Critical
Publication of EP3748061C0 publication Critical patent/EP3748061C0/en
Publication of EP3748061B1 publication Critical patent/EP3748061B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • D06F37/10—Doors; Securing means therefor
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/20—Parameters relating to constructional components, e.g. door sensors
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/302—Automatic drum positioning
    • 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
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door

Definitions

  • the present invention belongs to the field of household appliances, and specifically provides a top-loading laundry treatment device.
  • a top-loading drum washing machine mainly includes a box body, an outer drum and an inner drum.
  • a top portion of the box body is provided with an upper cover
  • the outer drum is provided with an outer drum cover at a position aligned with the upper cover in a circumferential direction
  • the inner drum is provided with an inner drum cover at a position corresponding to the outer drum cover in the circumferential direction.
  • top-loading drum washing machines in the related art require the user to operate the outer drum cover and the inner drum cover separately, so that the outer drum cover and the inner drum cover are opened or closed separately.
  • the above-mentioned operation steps of the outer drum cover and the inner drum cover are cumbersome, which brings inconvenience to the user during use and results in poor user experience.
  • Several prior art documents have disclosed different opening and/or closing structures of drum door of the top-loading washer.
  • US patent US6233981B1 discloses a washing machine equipped with an automatically opening drum door, wherein the opening of the door of the drum is automatically controlled by an unlocking actuator installed on the external access door or on a retractable support able to take the place of the latter door when it is open, and wherein the two leaves of the drum door are guided, during opening.
  • European patent application EP1298242A1 also discloses improvements for opening the drum of a top-loading washing machine, wherein a drum opening with a drum door composed of a double door opening frontward and backward is formed in the peripheral wall of the drum, wherein the drum door is held in a closed position by an engagement of a claw and an engagement hole, and wherein when a user rotates an operation lever for latching or unlatching the tub door, the drum door open/close mechanism functions to make two rods project or withdraw, whereby the drum door is brought into an engaged or unengaged state.
  • Cikon patent application CN1886545A1 discloses a drum-type washing machine including a drum provided in a water tub, wherein a drum cover provided on a body portion of the drum in such an arrangement that an opening formed on the body portion of the drum can be opened and closed, and wherein a driving source for outputting a driving force of closing the drum cover, and an automatic closing unit automatically closes the drum cover based on the driving source.
  • Another European patent application EP1422333A1 also discloses an drum opening system for top-loading washing machines provided with a releasable locking means for locking the doors in the closed position, a stop means for locking the drum in a stop position, a release means for releasing the releasable locking means in the stop position of the drum, and an operating element which operates the release means.
  • the third European patent application EP1688527A1 discloses a door opening system for a top-loading washer which comprises a release mechanism, an actuator and two drum positioners, wherein the first drum positioner enables the drum to be positioned opposite the actuator, and the second positioner positions the drum opening opposite the casing aperture, and wherein the release mechanism actuator and positioners are motorized.
  • the present disclosure provides a top-loading laundry treatment device as set out in independent claim 1.
  • Preferred embodiments of the invention are set out in the dependent claims.
  • the cover-opening lock is disposed on the box body or the outer drum, so that the cover-opening lock tongue of the cover-opening lock can abut against the cover-opening button on the inner drum cover, and with the further extension of the cover-opening lock tongue, the cover-opening button can be pressed to unlock the inner drum cover.
  • the unlocked inner drum cover can be automatically opened under the action of its own return spring. Therefore, the inner drum cover of the washing machine can be automatically unlocked and opened.
  • the inner drum cover is automatically opened at the same time or after the user opens the outer drum cover. Therefore, the cover opening system of the present disclosure reduces the user's operation of manually opening the inner drum cover and optimizes the user experience during use.
  • the cover-opening lock is further provided with the cover-opening positioning lock tongue, and the inner drum cover is provided with the stopper.
  • the inner drum is first positioned by a positioning lock to a position where the inner drum cover is aligned with the outer drum cover. Then, a lock tongue of the cover-opening positioning lock is retracted, the inner drum is driven by the drive motor to rotate, and the cover-opening positioning lock tongue is extended.
  • the inner drum rotates to the position where the cover-opening positioning lock tongue abuts against the stopper, the inner drum stops rotating.
  • the cover-positioning lock tongue is extended to unlock and open the inner drum cover.
  • both the cover-positioning tongue and the cover-opening positioning lock tongue are retracted.
  • the inner drum rotates again to the position where the inner drum cover is aligned with the outer drum cover, and the inner drum is locked by the positioning lock.
  • the upper cover and the outer drum cover are opened.
  • the inner drum cover is automatically opened under the action of its own return spring.
  • 1 outer drum; 2: inner drum; 21: first inner drum cover; 211: cover-opening button; 212: first stopper; 22: second inner drum cover; 221: second stopper; 3: pulley; 4: belt; 5: drive motor; 6: cover-opening lock; 61: cover-opening lock tongue; 62: cover-opening positioning lock tongue; 7: cover-closing lock; 71: cover-closing lock tongue; 72: cover-closing positioning lock tongue.
  • the positioning device of the present disclosure can be applied not only to a top-loading drum washing machine, but also to a top-loading clothes dryer and a top-loading washer-dryer.
  • Those skilled in the art may make an adjustment to the present disclosure as required so as to be adapted to specific application occasions, provided the technical solutions after the adjustment will still fall within the scope of protection of the present claims.
  • connection may be a fixed connection, or may also be a detachable connection, or an integral connection; it may be a mechanical connection, or an electrical connection; it may be a direct connection, or an indirect connection implemented through an intermediate medium, or it may be an internal communication between two elements.
  • install e.g., a fixed connection, or may also be a detachable connection, or an integral connection; it may be a mechanical connection, or an electrical connection; it may be a direct connection, or an indirect connection implemented through an intermediate medium, or it may be an internal communication between two elements.
  • the top-loading drum washing machine of the present disclosure mainly includes, from outside to inside, a box body (not shown in the figure), an outer drum 1 and an inner drum 2 in sequence.
  • a top portion of the box body is provided with an upper cover (not shown in the figure)
  • a top portion of the outer drum 1 is provided with an outer drum cover (not shown in the figure) at a position aligned with the upper cover
  • the inner drum 2 is provided with an inner drum cover at a position corresponding to the outer drum cover in a circumferential direction.
  • the inner drum cover rotates to a top portion of the inner drum 2, the upper cover, the outer drum cover and the inner drum cover are aligned.
  • the user can open the upper cover, the outer drum cover and the inner drum cover, and put laundry into the inner drum 2 or take the laundry out of the inner drum 2.
  • the inner drum cover includes a first inner drum cover 21 and a second inner drum cover 22 that are opposite to each other, and the first inner drum cover 21 and the second inner drum cover 22 can be tightly locked to each other after being closed.
  • a first return spring (not marked in the figure) is disposed between the first inner drum cover 21 and the inner drum 2, and the first return spring is configured to automatically open the first inner drum cover 21 from a closed state.
  • a second return spring (not marked in the figure) is disposed between the second inner drum cover 22 and the inner drum 2, and the second return spring is configured to automatically open the second inner drum cover 22 from a closed state.
  • first inner drum cover 21 and the second inner drum cover 22 there is a linkage mechanism between the first inner drum cover 21 and the second inner drum cover 22, and the first inner drum cover 21 and the second inner drum cover 22 can be opened or closed synchronously through the linkage mechanism. Since the linkage mechanism that realizes the synchronous opening and synchronous closing of the first inner drum cover 21 and the second inner drum cover 22 is a relatively common mechanism in the top-loading drum washing machine, no further description will be given herein.
  • a cover-opening button 211 is provided on the first inner drum cover 21.
  • the cover-opening button 211 is pressed, the first inner drum cover 21 and the second inner drum cover 22 that are tightly locked to each other can be unlocked. After the first inner drum cover 21 and the second inner drum cover 22 are unlocked, they can be automatically opened under the action of the first return spring and the second return spring.
  • the top-loading drum washing machine of the present disclosure further includes a pulley 3, a belt 4, and a drive motor 5.
  • the pulley 3 is disposed on an outer side of the outer drum 1 and fixed coaxially with the inner drum 2.
  • the drive motor 5 is disposed in the box body, and those skilled in the art can fix the drive motor 5 to the box body or the outer drum 1 as required.
  • An output shaft of the drive motor 5 is drivingly connected to the pulley 3 through the belt 4, so that the belt 4 can drive the pulley 3 to rotate when the drive motor 5 rotates, thus further driving the inner drum 2 to rotate.
  • the top-loading drum washing machine of the present disclosure further includes a positioning lock, which is disposed on the outer drum.
  • a positioning lock which is disposed on the outer drum.
  • the top-loading drum washing machine of the present disclosure further includes a cover opening/closing system including at least one of a cover opening system and a cover closing system.
  • the cover opening system mainly includes a cover-opening lock 6 for automatically opening the first inner drum cover 21 and the second inner drum cover 22 after the washing machine completes washing.
  • the cover-closing system mainly includes a cover-closing lock 7 for automatically closing the first inner drum cover 21 and the second inner drum cover 22 before the washing machine starts to wash.
  • the cover-opening lock 6 of the present disclosure is provided on the outer drum 1, and is disposed near an outer drum opening. Alternatively, those skilled in the art may also dispose the cover-opening lock 6 on the box body as required. Furthermore, the cover opening system of the present disclosure further includes a first stopper 212 disposed on the first inner drum cover 21. The first stopper 212 cooperates with the cover-opening lock 6 to automatically open both the first inner drum cover 21 and the second inner drum cover 22 that are in a closed state. Those skilled in the art can understand that the first stopper 212 of the present disclosure may be any feasible structure, for example, a hook, a plate-like structure, a column-like structure, and the like.
  • the cover-opening lock 6 of the present disclosure mainly includes a cover-opening lock body (not marked in the figure), a cover-opening lock tongue 61 as a first lock tongue, a cover-opening positioning lock tongue 62 as a second lock tongue, and a driving member (not shown in the figure).
  • the cover-opening lock tongue 61 and the cover-opening positioning lock tongue 62 are slidably connected to the cover-opening lock body along the directions of their own axes.
  • the driving member is configured to drive the cover-opening lock tongue 61 and the cover-opening positioning lock tongue 62 to slide along the directions of their own axes.
  • cover-opening positioning lock tongues 62 which are separately placed on both sides of the cover-opening lock tongue 61 to prevent the first inner drum cover 21 from being deformed when the cover-opening positioning lock tongue 62 abuts against the first stopper 212.
  • first stoppers 212 provided.
  • the cover-opening positioning lock tongue 62 is extended, the first stopper 212 can abut against the cover-opening positioning lock tongue 62 as the inner drum 2 rotates.
  • the cover-opening lock tongue 61 can just abut against the cover-opening button 211 after being extended.
  • the number of the cover-opening positioning lock tongue 62 is not limited to two as shown in FIG. 4 , and it can be any number, for example, one, three, four, etc.
  • cover-opening lock tongue 61 can abut against the cover-opening button 211
  • those skilled in the art can also omit the arrangement of the cover-opening positioning lock tongue 62 and the first stopper 212 as required; for example, an angle sensor is disposed on the inner drum 2, and the inner drum 2 is accurately rotated to a position where the cover-opening button 2 is aligned with the cover-opening lock tongue 61 with the aid of the angle sensor.
  • the cover opening system of the present disclosure further includes a controller, which is configured to control actions of the positioning lock, the drive motor 5 and the cover-opening lock 6.
  • step S11 when a washing operation of the washing machine is completed, the controller controls the drive motor 5 to rotate the pulley 3 to a position where the lock groove is aligned with the lock tongue of the positioning lock, and then the lock tongue of the positioning lock is inserted into the lock groove to lock the inner drum 2 to a position where the inner drum cover is aligned with the outer drum cover.
  • step S12 after the pulley 3 is locked by the positioning lock (for example, after a 5-second interval), the controller controls the drive motor 5 to cause the pulley 3 to drive the inner drum 2 to rotate reversely and cause the cover-opening positioning lock tongue 62 of the cover-opening lock 6 to extend.
  • step S13 when the first stopper 212 on the first inner drum cover 21 abuts against the extended cover-opening positioning lock tongue 62, the controller stops the drive motor 5 from rotating, thereby causing the inner drum 2 also to stop rotating. Further, the controller controls the cover-opening lock tongue 61 of the cover-opening lock 6 to extend. Alternatively, those skilled in the art may also make the cover-opening lock tongue 61 extend at the same time the cover-opening positioning lock tongue 62 extends, as required.
  • the cover-opening lock tongue 61 can abut against the cover-opening button 211 on the first inner drum cover 21 as it extends, and press the cover-opening button 211 to unlock the first inner drum cover 21 and the second inner drum cover 22.
  • the controller controls the cover-opening lock tongue 61 and the cover-opening positioning lock tongue 62 to retract so that the drive motor 52 drives the inner drum 2 to rotate forward.
  • first inner drum cover 21 and the second inner drum cover 22 are unlocked, free ends of the first inner drum cover 21 and the second inner drum cover 22 will press tightly against an inner wall of the outer drum 1 or an inner side of the outer drum cover under the actions of the first return spring and the second return spring.
  • step S15 when the inner drum 2 rotates again to the position where the inner drum cover is aligned with the outer drum cover, the controller stops the drive motor 5 from rotating, and causes the lock tongue of the positioning lock to be inserted into the lock groove on the pulley 3 so that the inner drum 2 and the pulley 3 are locked.
  • the cover opening system of the present disclosure reduces the user's operation of manually opening the inner drum cover and optimizes the user experience during use.
  • a sensor is provided in the cover-opening lock 6 for detecting whether the cover-opening positioning lock tongue 62 abuts against the first stopper 212.
  • the sensor may be any feasible sensor, such as a pressure sensor provided at a bottom end of the cover-opening positioning lock tongue 62, a proximity switch provided at a top end of the cover-opening positioning lock tongue 62, a switch that can be triggered by the first stopper 212, etc.
  • an extension stroke of the cover-opening lock tongue 61 is set such that the cover-opening lock tongue 61 can just press the cover-opening button 211 after the cover-opening lock tongue 61 is fully extended, thus unlocking the first inner drum cover 21 and the second inner drum cover 22. Moreover, after the cover-opening lock tongue 61 is fully extended, the controller controls the cover-opening lock tongue 61 to retract.
  • cover-opening lock tongue 61 and the cover-opening positioning lock tongue 62 may also provide rollers on the free ends of the cover-opening lock tongue 61 and the cover-opening positioning lock tongue 62 respectively as required.
  • the cover-opening lock tongue 61 and the cover-opening positioning lock tongue 62 respectively abut against the cover-opening button 211 and the first stopper 212 through respective rollers.
  • the cover-closing lock 7 of the present disclosure is provided on the outer drum 1, and is disposed near the outer drum closing. Alternatively, those skilled in the art may also dispose the cover-closing lock 7 on the box body as required. Furthermore, the cover closing system of the present disclosure further includes a second stopper 221 disposed on the second inner drum cover 22. The second stopper 221 cooperates with the cover-closing lock 7 to automatically close both the first inner drum cover 21 and the second inner drum cover 22 that are in an open state. Those skilled in the art can understand that the second stopper 221 of the present disclosure may be any feasible structure, for example, a hook, a plate-like structure, a column-like structure, and the like.
  • the cover-closing lock 7 of the present disclosure mainly includes a cover-closing lock body (not marked in the figure), a cover-closing lock tongue 71, a cover-closing positioning lock tongue 72, and a driving member (not shown in the figure).
  • the cover-closing lock tongue 71 and the cover-closing positioning lock tongue 72 are slidably connected to the cover-closing lock body along the directions of their own axes.
  • the driving member is configured to drive the cover-closing lock tongue 71 and the cover-closing positioning lock tongue 72 to slide along the directions of their own axes.
  • cover-closing positioning lock tongues 72 which are separately placed on both sides of the cover-closing lock tongue 71 to prevent the second inner drum cover 22 from being deformed when the cover-closing positioning lock tongue 72 abuts against the second stopper 221.
  • second stoppers 221 provided.
  • the cover-closing positioning lock tongue 72 is extended, the second stopper 221 can abut against the cover-closing positioning lock tongue 72 as the inner drum 2 rotates.
  • the cover-closing lock tongue 71 can close the second inner drum cover 22 after being extended.
  • the number of the cover-closing positioning lock tongue 72 is not limited to two as shown in FIG. 7 , and it can be any number, for example, one, three, four, etc. Further, under the premise of ensuring that the cover-closing lock tongue 71 can close the second inner drum cover 22, those skilled in the art can also omit the arrangement of the cover-closing positioning lock tongue 72 and the second stopper 221 as required; for example, an angle sensor is disposed on the inner drum 2, and the inner drum 2 is accurately rotated to a position where the cover-closing lock tongue 71 can close the second inner drum cover 22 with the aid of the angle sensor.
  • the cover closing system of the present disclosure further includes a controller, which is configured to control actions of the positioning lock, the drive motor 5 and the cover-closing lock 7.
  • a controller which is configured to control actions of the positioning lock, the drive motor 5 and the cover-closing lock 7.
  • Those skilled in the art may also make the cover closing system and the cover opening system share one controller as required.
  • the controller controls the positioning lock to retract the lock tongue from the lock groove on the pulley 3, and controls the drive motor 5 to cause the pulley 3 to drive the inner drum 2 to rotate forward and cause the cover-closing positioning lock tongue 72 of the cover-closing lock 7 to extend.
  • step S22 when the second stopper 221 on the second inner drum cover 22 abuts against the extended cover-closing positioning lock tongue 72, the controller stops the drive motor 5 from rotating, thereby causing the inner drum 2 also to stop rotating. Further, the controller controls the cover-closing lock tongue 71 of the cover-closing lock 7 to extend. Alternatively, those skilled in the art may also make the cover-closing lock tongue 71 be extended at the same time the cover-closing positioning lock tongue 72 is extended, as required.
  • the cover-closing lock tongue 71 can close the second inner drum cover 22 as it extends. Since there is a linkage mechanism between the first inner drum cover 21 and the second inner drum cover 22, while the second inner drum cover 22 is being closed, the first inner drum cover 21 is also being closed. After the first inner drum cover 21 and the second inner drum cover 22 are closed, the controller retracts the cover-closing lock tongue 71 and the cover-closing positioning lock tongue 72.
  • step S24 after step S23 is completed, the controller controls the washing machine to start the washing operation.
  • the cover closing system of the present disclosure reduces the user's operation of manually closing the inner drum cover and optimizes the user experience during use.
  • a sensor is provided in the cover-closing lock 7 for detecting whether the cover-closing positioning lock tongue 72 abuts against the second stopper 221.
  • the sensor may be any feasible sensor, such as a pressure sensor provided at a bottom end of the cover-closing positioning lock tongue 72, a proximity switch provided at a top end of the cover-closing positioning lock tongue 72, a switch that can be triggered by the second stopper 221, etc.
  • an extension stroke of the cover-closing lock tongue 71 is set such that the cover-closing lock tongue 71 can just close the first inner drum cover 21 and the second inner drum cover 22 after the cover-closing lock tongue 71 is fully extended. Moreover, after the cover-closing lock tongue 71 is fully extended, the controller controls the cover-closing lock tongue 71 to retract.
  • cover-closing lock tongue 71 and the cover-closing positioning lock tongue 72 may also provide rollers on the free ends of the cover-closing lock tongue 71 and the cover-closing positioning lock tongue 72 respectively as required.
  • the cover-closing lock tongue 71 and the cover-closing positioning lock tongue 72 respectively abut against an outer side of the second inner drum cover 22 and the second stopper 221 through respective rollers.
  • the inner drum cover of the present disclosure may be any feasible inner drum cover.
  • the inner drum cover is composed of only one cover body, and the cover body can be pivotally connected to the inner drum 2 or slidably connected to the inner drum 2.
  • the upper cover and the outer drum cover may also be configured as one piece, so that when the cover is closed, laundry inlets on both the outer drum and the box body can be closed.
  • the cover closing system of the present disclosure further includes a controller, which is configured to control actions of the positioning lock, the drive motor 5 and the cover-closing lock 7.
  • a controller which is configured to control actions of the positioning lock, the drive motor 5 and the cover-closing lock 7.
  • Those skilled in the art may also make the cover closing system and the cover opening system share one controller as required.
  • the controller controls the positioning lock to retract the lock tongue from the lock groove on the pulley 3, and controls the drive motor 5 to cause the pulley 3 to drive the inner drum 2 to rotate forward and cause the cover-closing positioning lock tongue 72 of the cover-closing lock 7 to extend.
  • step S22 when the second stopper 221 on the second inner drum cover 22 abuts against the extended cover-closing positioning lock tongue 72, the controller stops the drive motor 5 from rotating, thereby causing the inner drum 2 also to stop rotating. Further, the controller controls the cover-closing lock tongue 71 of the cover-closing lock 7 to extend. Alternatively, those skilled in the art may also make the cover-closing lock tongue 71 be extended at the same time the cover-closing positioning lock tongue 72 is extended, as required.
  • the cover-closing lock tongue 71 can close the second inner drum cover 22 as it extends. Since there is a linkage mechanism between the first inner drum cover 21 and the second inner drum cover 22, while the second inner drum cover 22 is being closed, the first inner drum cover 21 is also being closed. After the first inner drum cover 21 and the second inner drum cover 22 are closed, the controller retracts the cover-closing lock tongue 71 and the cover-closing positioning lock tongue 72.
  • step S24 after step S23 is completed, the controller controls the washing machine to start the washing operation.
  • the cover closing system of the present disclosure reduces the user's operation of manually closing the inner drum cover and optimizes the user experience during use.
  • a sensor is provided in the cover-closing lock 7 for detecting whether the cover-closing positioning lock tongue 72 abuts against the second stopper 221.
  • the sensor may be any feasible sensor, such as a pressure sensor provided at a bottom end of the cover-closing positioning lock tongue 72, a proximity switch provided at a top end of the cover-closing positioning lock tongue 72, a switch that can be triggered by the second stopper 221, etc.
  • an extension stroke of the cover-closing lock tongue 71 is set such that the cover-closing lock tongue 71 can just close the first inner drum cover 21 and the second inner drum cover 22 after the cover-closing lock tongue 71 is fully extended. Moreover, after the cover-closing lock tongue 71 is fully extended, the controller controls the cover-closing lock tongue 71 to retract.
  • cover-closing lock tongue 71 and the cover-closing positioning lock tongue 72 may also provide rollers on the free ends of the cover-closing lock tongue 71 and the cover-closing positioning lock tongue 72 respectively as required.
  • the cover-closing lock tongue 71 and the cover-closing positioning lock tongue 72 respectively abut against an outer side of the second inner drum cover 22 and the second stopper 221 through respective rollers.
  • the upper cover and the outer drum cover may also be configured as one piece, so that when the cover is closed, laundry inlets on both the outer drum and the box body can be closed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP19747196.4A 2018-02-02 2019-01-30 Top-loading laundry treatment device, and cover opening/closing system thereof Active EP3748061B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201810105142.2A CN110130064B (zh) 2018-02-02 2018-02-02 顶开式衣物处理设备及其关盖系统
CN201810105150.7A CN110130065B (zh) 2018-02-02 2018-02-02 顶开式衣物处理设备及其开盖系统
PCT/CN2019/073927 WO2019149221A1 (zh) 2018-02-02 2019-01-30 顶开式衣物处理设备及其开关盖系统

Publications (4)

Publication Number Publication Date
EP3748061A1 EP3748061A1 (en) 2020-12-09
EP3748061A4 EP3748061A4 (en) 2021-11-03
EP3748061C0 EP3748061C0 (en) 2024-04-10
EP3748061B1 true EP3748061B1 (en) 2024-04-10

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Application Number Title Priority Date Filing Date
EP19747196.4A Active EP3748061B1 (en) 2018-02-02 2019-01-30 Top-loading laundry treatment device, and cover opening/closing system thereof

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EP (1) EP3748061B1 (zh)
JP (1) JP7049470B2 (zh)
WO (1) WO2019149221A1 (zh)

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WO2019149221A1 (zh) 2019-08-08
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EP3748061C0 (en) 2024-04-10
EP3748061A4 (en) 2021-11-03
JP2021519618A (ja) 2021-08-12

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