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EP3578705A1 - Lave-linge à tambour - Google Patents

Lave-linge à tambour Download PDF

Info

Publication number
EP3578705A1
EP3578705A1 EP18747637.9A EP18747637A EP3578705A1 EP 3578705 A1 EP3578705 A1 EP 3578705A1 EP 18747637 A EP18747637 A EP 18747637A EP 3578705 A1 EP3578705 A1 EP 3578705A1
Authority
EP
European Patent Office
Prior art keywords
drum
washing
washing drum
washing machine
limiting ring
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.)
Granted
Application number
EP18747637.9A
Other languages
German (de)
English (en)
Other versions
EP3578705A4 (fr
EP3578705B1 (fr
Inventor
Zhiqiang Zhao
Sheng Xu
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
Original Assignee
Qingdao Haier Drum Washing Machine 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
Application filed by Qingdao Haier Drum Washing Machine Co Ltd filed Critical Qingdao Haier Drum Washing Machine Co Ltd
Publication of EP3578705A1 publication Critical patent/EP3578705A1/fr
Publication of EP3578705A4 publication Critical patent/EP3578705A4/fr
Application granted granted Critical
Publication of EP3578705B1 publication Critical patent/EP3578705B1/fr
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
    • 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
    • D06F21/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement 
    • D06F21/10—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement  about an inclined axis
    • 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
    • D06F37/26—Casings; Tubs
    • D06F37/28—Doors; Security 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
    • 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

Definitions

  • the present invention relates to the technical field of washing machines, for example, to a drum washing machine.
  • a drum washing machine in the related art includes an inner drum and an outer drum.
  • a user can keep the inner drum of the washing machine clean in a washing and maintenance process of the washing machine, but the outer drum is sleeved outside the washing drum (i.e., the inner drum), so that an interlayer, namely a washing machine groove, is disposed between the inner drum and the outer drum.
  • the washing machine groove is a harboring site for dirt, and the user cannot remove the inner drum and the outer drum on his/her own to clean an outer wall of the inner drum and an inner wall of the outer drum.
  • the residual water in the inner drum and outer drum that is left from the operation of the washing machine is not easy to clean and evaporate, leading to the growth of a large amount of bacteria on the drum walls.
  • the present invention provides a drum washing machine, which can solve the problem that a washing machine drum in the related art needs to be cleaned periodically.
  • drum washing machine that includes a washing machine housing.
  • a washing drum is disposed in the washing machine housing and includes a front washing drum and a rear washing drum.
  • the front washing drum is sealedly connected to the rear washing drum and is operative to rotate relative to the rear washing drum.
  • the front washing drum is operative to rotate along with a motor, and the rear washing drum is at rest when the front washing drum is rotating along with the motor.
  • the washing drum according to the present invention includes a front washing drum and a rear washing drum.
  • the front washing drum can rotate relative to the rear washing drum, and the front washing drum is dynamically and sealedly connected to the rear washing drum. Then clothes and water in the washing drum are driven to rotate to lift clothes, and then let the clothes fall and be beaten, thereby achieving the function of washing clothes.
  • the washing drum is not divided into an inner drum and an outer drum, the outer wall of the washing drum cannot be filled with water, especially water after washing. Thus, dirt can be prevented from being accumulated on the outer wall of the washing drum, the outer wall of the washing drum is free from needing cleaning.
  • water that is present between the inner drum and the outer drum of the original washing drum is also saved, thereby further saving water.
  • the rear washing drum has a length smaller than the front washing drum.
  • the length of the rear washing drum is less than that the front washing drum so that the rear washing drum can rotate when there is sufficient water, ensuring the washing cleaning rate.
  • the washing machine housing is provided with a loading port, a door and window is disposed at the loading port, and a sealing door is further arranged on a side of the front washing drum adjacent to the door and window and is configured to seal the washing drum.
  • a sealing groove is defined in a side wall of the front washing drum contacting the sealing door or in a side wall of the sealing door contacting the front washing drum, and a first sealing ring is disposed in the sealing groove.
  • the sealing door, the sealing groove, and the first sealing ring are arranged to seal the front washing drum, so that washing water is prevented from flowing out in a rotating process of the front washing drum.
  • the washing machine is ensured to complete a washing task and is protected from water leakage, electric leakage, short circuit, and other like faults.
  • the sealing door is connected to the front washing drum.
  • the sealing door is connected to the front washing drum to separate the sealing door from the door and window.
  • the sealing door rotates along with the front washing drum, effectively solving the problem of a poor sealing effect between the door window and the front washing drum.
  • a water inlet valve is disposed on the housing of the washing machine and is connected to a detergent box via a water inlet pipeline, and the detergent box is connected to the water inlet hole via a water injection pipe.
  • a central axis of the washing drum is inclined relative to the horizontal plane, and forms an angle ⁇ between the central axis and the horizontal plane, where 0 ⁇ ⁇ ⁇ 90°.
  • the inclined-type drum washing machine can better meet user's needs that clothes can be taken out without stooping.
  • the drum has a certain angle of inclination relative to the horizontal plane, thereby making it convenient to take out and put in clothes.
  • the front washing drum is a no-porous structure drum.
  • At least one lifting rib is arranged on an inner side wall of the rear washing drum.
  • a plurality of lifting ribs may be arranged inside the rear washing drum, so that the clothes inside the rear washing drum can be better lifted, fall down, and be beaten for washing purposes.
  • the front washing drum is connected to the rear washing drum via a rotary bearing, and a second sealing ring is disposed between the front washing drum and the rear washing drum.
  • a limiting ring having an F-shaped cross-section is disposed at a joint of the front washing drum and the rear washing drum.
  • the limiting ring includes a first vertical limiting ring body, a first transverse limiting ring body disposed on top of the first vertical limiting ring body, and a second transverse limiting ring body parallel to the first transverse limiting ring body.
  • the second sealing ring may be disposed between the first transverse limiting ring body and the second transverse limiting ring body, the rotary bearing may be disposed in a space formed by the first vertical limiting ring body, the second transverse limiting ring body, and an outer wall of the rear washing drum.
  • the sealing ring is arranged between the first transverse limiting ring body and the second transverse limiting ring body, namely the sealing ring is arranged in a rectangular closed space formed by the first transverse limiting ring body, the second transverse limiting ring body, the first vertical limiting ring body, and a lower drum.
  • the rotary bearing is arranged in a space formed by the first vertical limiting ring body, the second transverse limiting ring body, and an outer wall of the lower drum.
  • the second sealing ring is a lip-shaped sealing ring.
  • the lip-shaped sealing ring has a self-sealing effect.
  • the lip is acted by working pressure to make the lip compress a sealing coupling surface, the abrasion loss can be automatically compensated, and therefore the lip-shaped sealing ring has a better sealing performance.
  • a water inlet hole and a water outlet hole are disposed in the rear washing drum, and the water outlet hole is communicated with a drain valve via a drain connecting pipe.
  • the present embodiment provides a drum washing machine which does not require periodical cleaning of dirt on an outer wall or an inner wall of a washing drum, making it more water-saving.
  • the drum washing machine includes a washing machine housing 1, and a washing drum is arranged in the washing machine housing 1 and is configured for rotating to wash clothes.
  • the washing drum includes a front washing drum 21 and a rear washing drum 22.
  • the front washing drum 21 is dynamically and sealedly connected to the rear washing drum 22, and the front washing drum 21 can rotate relative to the rear washing drum 22.
  • the rear washing drum 22 is at rest in a rotating process of the front washing drum 21, and water in the washing drum can be ensured to rotate along with the front washing drum 21 to perform washing of the clothes.
  • the front washing drum 21 is connected to the motor 4 via a belt 3, and the front washing drum 21 is operative rotate along with the motor 4; that is, the belt 3 rotates along with the motor 4.
  • the rear washing drum 22 is provided with a water inlet hole 221 and a water outlet hole 222, and the water outlet hole 222 is connected to the drain valve 51 via the drain connecting pipe 5. After the washing is finished, sewage enters the drain pipe 52 through the water outlet hole 222 and the drain valve 51 and is discharged out of the washing machine.
  • the length h of the rear washing drum 22 is less than the length H of the front washing drum 21.
  • the length of the rear washing drum 22 can be as small as possible, but it should be noted that the length of the rear washing drum 22 should not affect the arrangement of the water outlet hole 222 and the water inlet hole 221.
  • the rear washing drum 22 may be flexibly fixed in the washing machine housing 1 by a spring or a damper, or may be firmly fixed in the washing machine housing 1 with complete rigidity.
  • the rear washing drum 22 and the front washing drum 21 are both non-porous drums, that is, no hole is provided in a side wall of both the rear washing drum and the front washing drum, and the rear washing drum 22 is provided with the water inlet hole 221 and the water outlet hole 222.
  • Such structure can ensure that the front washing drum 21 can be filled with water or drained without being positioned after rotation. Dirt is prevented from being accumulated on the wall of the drum due to water flowing out from the side wall holes.
  • the front washing drum 22 and the rear washing drum 21 are not soaked by water, so that the front washing drum 21 is not subjected to resistance of water passing through holes in the rotating process, providing smoother rotation.
  • the front washing drum 21 may be a non-porous structure drum. After water inflow is finished, the drain pump or the drain valve is not started and is in a sealed state. Detergent and washing water are sealed in the front washing drum and the rear washing drum, and clothes to be washed are also placed in the front washing drum and the rear washing drum.
  • Such structure can realize the integrated design of the water drum and the laundry drum, preventing water from flowing out of the outer wall of the washing drum to cause dirt to be accumulated on the outer wall, thereby further saving water.
  • a side of the washing machine housing 1 is provided with a loading port, and a door and window 8 is arranged at the loading port.
  • a side of the front washing drum 21 adjacent to the door and window 8 is further provided with a sealing door 7 for sealing the washing drum, and the sealing door 7 is hingedly connected to the front washing drum 21 so as to ensure that the sealing door 7 is able to be opened.
  • a sealing groove 212 is defined in the side wall of the front washing drum 21 contacting the sealing door 7 or in a side wall of the sealing door 7 contacting the front washing drum 21, and a first sealing ring 61 (referring to FIG. 2 ) is disposed in the sealing groove 212.
  • the sealing door 7 can realize static sealing with the front washing drum 21, thereby ensuring that the washing drum is not subject to water leakage.
  • the user opens the door and window 8 and then opens the sealing door 7, so that the washed clothes can be taken out or the clothes to be washed can be put in.
  • the sealing door 7 may also be connected to the door and window 8, and can rotate relative to the door and window 8, that is, the sealing door 7 is connected to the door and window 8 via a shaft, and can block a front end of the front washing drum 21 to make the sealing door 7 and the front washing drum 21 form a sealing chamber to prevent washing water from flowing out. Therefore, the sealing door 7 can be opened by opening the door and window 8, and the clothes can be put in and taken out, providing a more convenient washing machine for the user.
  • At least one lifting rib 211 is arranged on an inner side wall of the front washing drum 21.
  • the lifting ribs 211 are provided for the purpose of lifting the clothes to allow the clothes to then rapidly fall during the washing process, so that the clothes inside can be better lifted, and fall so as to be beaten for washing purposes.
  • the rear washing drum 22 is connected to the front washing drum 21 via a rotary bearing 10.
  • the rear washing drum 22 is sleeved on an inner ring of the rotary bearing 10, the front washing drum 21 is engaged with an outer ring of the rotary bearing 10, and a second sealing ring 62 is disposed between the front washing drum 21 and the rear washing drum 22.
  • a limiting ring 213 having an F-shaped cross-section is disposed at the joint between the front washing drum 21 and the rear washing drum 22.
  • the limiting ring 213 includes a first vertical limiting ring body 2131, a first transverse limiting ring body 2132 disposed on top of the first vertical limiting ring body 2131, and a second transverse limiting ring body 2133 disposed parallel with the first transverse limiting ring body 2132.
  • the second sealing ring 62 is disposed between the first transverse limiting ring body 2132 and the second transverse limiting ring body 2133, and the rotary bearing 10 is disposed in a space formed by the first vertical limiting ring body 2131, the second transverse limiting ring body 2133, and an outer wall of the rear washing drum 22.
  • the second sealing ring 62 is a lip-shaped sealing ring.
  • the limiting ring 213 is integrated with the front washing drum 21, and such structure can improve the sealing effect between the front washing drum 21 and the limiting ring 213.
  • the front washing drum 21 is connected to the rear washing drum 22 via the rotary bearing 10, so that the front washing drum 21 can be effectively ensured to rotate relative to the rear washing drum 22. Furthermore, the sealing ring is arranged between the rear washing drum 22 and the front washing drum 21, so that water in the washing drum can be prevented from flowing out of the washing drum to affect the operation of the washing machine.
  • the second sealing ring 62 may be a lip-shaped sealing ring, and such sealing ring has a self-sealing effect.
  • the lip is acted by working pressure to make the lip compress a sealing coupling surface, and the abrasion loss can be automatically compensated.
  • the working pressure originated from the pre-compression force of the front washing drum 21 and the rear washing drum 22, the self-gravity of the front washing drum 21, and the working pressure of the internal liquid.
  • the second sealing ring 62 may be the shape of Y, V, U, J or L.
  • the rotary connection (dynamic connection) between the front washing drum 21 and the rear washing drum 22 is a bearing connection, the front washing drum 21 and the rear washing drum 22 are respectively connected to an outer ring and an inner ring of the bearing.
  • the rotary bearing can be selected from various types, and the rotary bearing 9 includes all bearings, such as ball bearings and roller bearings.
  • the bearing type in the present embodiment may be a tapered roller bearing, a cylindrical roller bearing, a ball roller bearing, or the like.
  • the tapered roller bearing is selected in the present embodiment, and the tapered ball bearing includes a bearing inner ring, a bearing bracket, tapered rollers, and a bearing outer ring.
  • the drum washing machine is filled with water through a water inlet valve 92 provided on the washing machine housing 1.
  • the water inlet valve 92 is communicated to a tap water pipeline and is communicated to a detergent box 9 through a water inlet pipeline 93, and the detergent box 9 is communicated to the water inlet hole 221 through a water injection pipe 91.
  • the tap water sequentially passes through the water inlet valve 92, the water inlet pipe 93 and the detergent box 9, and then enters the rear washing drum 22.
  • the bottom of the washing machine housing 1 is further provided with a chassis 12, the bottom of the chassis 12 is provided with ground feet 13 for supporting the whole washing machine, and the top of the washing machine housing 1 is provided with an upper table panel 14.
  • Embodiment 1 The difference between the present embodiment and Embodiment 1 is that a central axis of a washing drum is arranged inclined relative to the horizontal plane.
  • a central axis of the washing drum is inclined relative to the horizontal plane, and an angle formed between the central axis of the washing drum and the horizontal plane is ⁇ , and 0 ⁇ ⁇ ⁇ 90°.
  • the rotary bearing 10 in the present embodiment is a cylindrical roller bearing.
  • the rotary bearing 10 may also be a ball bearing (referring to FIG. 6 ).
  • the drum washing machine in the present invention does not need periodical cleaning of dirt on an outer wall or an inner wall of a washing drum, so that it is more water-saving.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP18747637.9A 2017-02-06 2018-02-06 Lave-linge à tambour Active EP3578705B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710065692.1A CN108396504B (zh) 2017-02-06 2017-02-06 一种滚筒洗衣机
PCT/CN2018/075364 WO2018141298A1 (fr) 2017-02-06 2018-02-06 Lave-linge à tambour

Publications (3)

Publication Number Publication Date
EP3578705A1 true EP3578705A1 (fr) 2019-12-11
EP3578705A4 EP3578705A4 (fr) 2020-09-02
EP3578705B1 EP3578705B1 (fr) 2021-08-04

Family

ID=63040299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18747637.9A Active EP3578705B1 (fr) 2017-02-06 2018-02-06 Lave-linge à tambour

Country Status (5)

Country Link
US (1) US20200232137A1 (fr)
EP (1) EP3578705B1 (fr)
JP (1) JP2020513196A (fr)
CN (1) CN108396504B (fr)
WO (1) WO2018141298A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102620364B1 (ko) * 2017-02-23 2024-01-04 삼성전자주식회사 세탁기
CN111088657B (zh) * 2018-10-23 2022-08-26 青岛海尔洗涤电器有限公司 一种滚筒洗衣机及其控制方法
WO2020083037A1 (fr) * 2018-10-23 2020-04-30 青岛海尔滚筒洗衣机有限公司 Machine à laver à rouleaux et son procédé de commande
CN111088658A (zh) * 2018-10-23 2020-05-01 青岛海尔滚筒洗衣机有限公司 一种滚筒洗衣机及其控制方法
CN111663297B (zh) * 2019-03-07 2023-05-23 青岛海尔洗涤电器有限公司 一种洗衣机及其控制方法
CN111850927B (zh) * 2019-04-30 2023-06-13 青岛海尔洗涤电器有限公司 一种滚筒洗衣机
CN114075734B (zh) * 2020-08-19 2024-12-27 青岛海尔洗涤电器有限公司 一种洗衣机

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Also Published As

Publication number Publication date
US20200232137A1 (en) 2020-07-23
JP2020513196A (ja) 2020-05-07
CN108396504A (zh) 2018-08-14
CN108396504B (zh) 2021-08-20
WO2018141298A1 (fr) 2018-08-09
EP3578705A4 (fr) 2020-09-02
EP3578705B1 (fr) 2021-08-04

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