WO2018192548A1 - Machine à laver - Google Patents

Machine à laver Download PDF

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Publication number
WO2018192548A1
WO2018192548A1 PCT/CN2018/083722 CN2018083722W WO2018192548A1 WO 2018192548 A1 WO2018192548 A1 WO 2018192548A1 CN 2018083722 W CN2018083722 W CN 2018083722W WO 2018192548 A1 WO2018192548 A1 WO 2018192548A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
washing
washing machine
mounting plate
washing tub
Prior art date
Application number
PCT/CN2018/083722
Other languages
English (en)
Chinese (zh)
Inventor
吕佩师
许升
吕艳芬
郝兴慧
吴迪
Original Assignee
青岛海尔洗衣机有限公司
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 青岛海尔洗衣机有限公司 filed Critical 青岛海尔洗衣机有限公司
Priority to JP2019556924A priority Critical patent/JP6948507B2/ja
Publication of WO2018192548A1 publication Critical patent/WO2018192548A1/fr

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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
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/04—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a vertical 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • 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
    • 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
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D06F37/268—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for suspension devices
    • 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 
    • D06F39/08—Liquid supply or discharge arrangements

Definitions

  • the present invention relates to laundry equipment, and more particularly to a washing machine.
  • the existing pulsator washing machine generally comprises a washing tub, an outer tub, a vibration damping component and a power system.
  • the washing tub rotates relative to the outer tub to cause the laundry and the washing water to act to wash the laundry or dehydrate.
  • the purpose is that the outer tub is used as a water tub, and the laundry is not in contact with the laundry during the washing process, and the outer tub is installed outside the washing tub to provide support for the washing tub, and the outer tub of the existing washing machine is relatively larger than the washing tub.
  • the amount of washing water between the inner and outer barrels is large and cannot be fully utilized. This arrangement is not only unfavorable for water saving, but also causes the overall volume of the washing machine to be large.
  • the Chinese patent application No. CN99230455.5 discloses a single-barrel type water-saving washing machine, and a water collecting device is arranged at the barrel mouth of the washing bucket, and the water collecting port of the water collecting device is covered around the barrel of the washing tub.
  • the water collecting device is located at the mouth of the bucket and is connected to a plurality of drain pipes. They are arranged symmetrically from top to bottom along the outer wall of the washing tub. When the tank is dry, the water collecting device collects the centrifugal water flowing due to the high speed and directs it to The lower guide is drained.
  • the patent saves the outer tub, the drain pipe is located outside the tub. When the washing machine is dehydrated, it easily hits the inner wall of the tank, causing the drain pipe to wear and leak, and the leaked washing water directly enters the motor and other equipment. , causing a short circuit in the washing machine.
  • the present invention has been made in view of the above.
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide a washing machine capable of expanding the volume of the washing tub, improving the water saving effect, and preventing the short circuit of the washing water from being caused by the splashing of the washing water.
  • a washing machine includes a box body, a washing tub and a mounting plate disposed at a lower portion of the washing tub, wherein the mounting plate is connected to the box body through a vibration damping member, the washing tub is a water tub in the washing stage, and the washing board is opposite to the mounting board in the dehydrating stage.
  • a submerged water collecting structure is arranged between the outer edge of the mounting plate and the box body, and the outer peripheral side of the water collecting structure is sealingly connected with the inner wall of the tank.
  • the bottom of the water collecting structure is provided with a secondary drain port, and the auxiliary drain port communicates with the outside of the washing machine.
  • the level of the connection between the outer peripheral side of the water collecting structure and the inner wall of the tank is lower than the level of the inner peripheral side and the joint of the mounting plate.
  • an inner peripheral side of the water collecting structure is elastically coupled to an outer edge of the mounting board.
  • the water collecting structure includes a water receiving ring disposed between the mounting plate and the box body, and the inner peripheral side of the water receiving ring is connected to the outer edge of the mounting board by a plurality of elastic suspension members, and the outer peripheral side is
  • the mounting structure disposed on the inner wall of the tank is sealed and connected, the upper part of the water receiving ring is an open opening, and the bottom is provided with a secondary drain opening.
  • the elastic suspension member is a tension spring suspended from above and below, the upper end of the tension spring is connected to the edge of the mounting plate, and the lower end is connected to the side wall of the water receiving ring.
  • the mounting structure comprises a horizontal section extending horizontally from the inner wall of the tank and an annular flange connected to the horizontal section and extending downward, and a side wall of the water receiving ring is fixed on the annular flange opposite to the mounting board One side is affixed to the annular flange by a fastening ring.
  • peripheral wall of the washing tub is provided with a drainage channel, and the drainage channel is drained from the top to the bottom.
  • the upper end of the washing tub is provided with a water collecting ring, and the inner side of the water collecting ring is provided with a dehydrating port, the upper end of the drain channel is connected with the water collecting ring, and the lower end is connected with the drain port provided at the bottom of the washing tub. .
  • the drain port at the bottom of the washing tub is provided with a valve plug for controlling the opening or closing of the drain port.
  • the control valve plug In the washing stage, the control valve plug is closed, and in the draining and dehydrating stages, the control valve plug is opened.
  • a surface of the mounting plate is provided with a ring-shaped water retaining ring, and the water retaining ring extends upward from the upper surface of the mounting plate to form a cavity structure for accommodating washing water, and the water outlet of the drainage channel is located in the cavity.
  • the water collecting structure is located outside the water retaining ring.
  • a main drain port is arranged on the mounting plate and inside the water retaining ring, and the main drain port communicates with the outside of the washing machine through the washing machine drain pipe, the auxiliary drain hole is arranged at the bottom of the water collecting structure, and the auxiliary drain port passes through the branch water pipe Connected to the washing machine drain.
  • the drainage channel comprises a water channel housing and a part of the washing tub wall, and a side of the water channel housing facing the washing tub wall is provided with a vertically penetrating groove, and the water channel shell is fastened on the washing tub wall, and washing The walls of the barrel together form a water flow channel.
  • the water collecting ring is provided with a water deflecting plate for guiding the washing water into the drainage channel, and the water retaining plate is located above the water inlet of the drainage channel and is inclined at an angle to the horizontal plane.
  • the side of the water collecting ring facing the axis of the washing tub is a curved surface, and the curved surface is gradually bent from the bottom to the center of the washing tub along the axial direction of the washing tub, and the dewatering port of the collecting ring is disposed at The bottom end of the curved face.
  • the mounting plate is further provided with a locking structure, the locking mechanism is located at the bottom of the washing tub, and the locking mechanism cooperates with the washing tub during the washing phase to restrict the rotation of the washing tub.
  • the washing machine of the invention eliminates the structure of the outer tub, and the washing tub is designed as a water tub structure, which can improve the utilization rate of the washing water and reduce the usage amount of the washing water, and at the same time, the volume of the washing tub can be set after the outer tub is omitted. Larger, the amount of laundry that can be washed is increased, and the purpose of expanding the washing machine is achieved.
  • the water collecting structure for collecting the washing water flowing along the inner wall of the tank is provided between the mounting plate and the casing of the present invention. The problem of short circuit of the washing machine caused by splashing of washing water is avoided, and the service life of the washing machine is effectively extended.
  • Figure 1 is a cross-sectional view showing the structure of the present invention
  • Figure 2 is a structural view of a part of the drainage channel of the present invention.
  • Figure 3 is a partial enlarged view of Y of Figure 2;
  • Figure 4 is a partial enlarged view of K of Figure 1;
  • a washing machine includes a casing 1, a washing tub 2 for accommodating laundry, a power unit 3 for driving the washing tub 2 to rotate, a mounting plate 4 installed at a lower portion of the washing tub 2, and a connection.
  • the mounting plate 4 and the damping member of the casing 1 are mounted.
  • the washing tub 2 is rotatably disposed in the casing 1, the washing tub 2 is seated on the mounting plate 4, and is rotatable relative to the mounting plate 4, the washing tub 2 is used as a tub for accommodating washing water, and the mounting plate 4 is used for The washing tub 2 is supported, and the mounting plate 4 is movably connected to the casing 1 through a vibration damping member, and when washing or dehydrating, the washing tub 2 and the mounting plate 4 generate vibration, which is transmitted to the vibration damping member and absorbed.
  • the bottom of the washing tub 2 is provided with a drain port
  • the upper surface of the mounting plate 4 is provided with a ring-shaped water retaining ring 12, and the water retaining ring 12 is directed from the upper surface of the mounting plate 4 to the washing tub.
  • the two directions are convex and extend to a certain height to form a cavity structure for accommodating the washing water.
  • the main drain 16 is disposed on the mounting plate 4 and located inside the water retaining ring 12, and communicates with the drain port at the bottom of the washing tub 2.
  • a water collecting structure 18 is further disposed between the outer edge of the mounting plate 4 and the casing 1, and at least one side of the water collecting structure 18 is connected to the inner wall of the casing 1 to collect the washing water flowing down the inner wall of the casing 1.
  • the bottom of the water collecting structure 18 is provided with a sub-drainage port 17, which communicates with the outside of the washing machine, respectively.
  • the main drain port 16 communicates with the outside of the washing machine through the washing machine drain pipe 6, and the sub drain port 17 is connected to the washing machine drain pipe 6 through the branch water pipe 24.
  • the top of the washing tub 2 is provided with a balance ring 7 , and the lower side of the balance ring 7 is provided with a water collecting ring 8 , and a drainage channel 5 is arranged inside the peripheral wall of the washing tub 2 , and the water collecting ring 8 is connected with the drainage channel 5 .
  • a dewatering port is provided on the inner side of the water collecting ring 8 or toward the washing tub 2, and the drain passage 5 is vertically disposed, and the upper end thereof communicates with the water collecting ring 8, and the lower end communicates with the drain port at the bottom of the washing tub.
  • the washing tub 2 has a certain taper.
  • the washing tub 2 When the washing tub 2 rotates at a high speed, the washing water in the washing tub 2 will climb upward along the washing tub wall under the action of centrifugal force, and from the collecting ring 8 after rising to a certain height.
  • the dewatering port enters the water collecting ring 8, and the washing water flows annularly in the water collecting ring 8.
  • the washing water flows downward along the drain passage 5 and is discharged from the drain port at the bottom of the washing tub.
  • the water collecting ring 8 is provided with a water deflecting plate 13 for guiding the washing water into the drain passage 5, and the water retaining plate 13 is located above the water inlet of the drain channel 5, and Tilted at an angle to the horizontal.
  • the washing water flows annularly in the water collecting ring 8, it will collide with the water retaining plate 13, and the water retaining plate 13 is inclined downward toward the side of the water flow direction, so that the water flow hits the water retaining plate 13 and changes the flow direction.
  • By flowing in the circumferential direction of the barrel it becomes a downward flow along the wall of the barrel and enters the drainage channel 5.
  • the water deflector 13 changes the flow direction of the water in the water collecting ring 8
  • the water in the water collecting ring 8 can flow into the drain passage 5 at the time of high-speed dehydration, and the amount of water in the water collecting ring 8 can be prevented from being excessive.
  • the drain port at the bottom of the washing tub 2 is mounted with a valve plug 15 which is located inside the water retaining ring 12, and in the washing stage, the valve plug 15 is in a closed state, and in the dehydrating phase, the valve plug 15 is in an open state.
  • the valve plug 15 is opened, the washing water in the washing tub 2 flows into the cavity structure and is discharged from the washing machine drain pipe 6 to the outside of the washing machine.
  • the water collecting structure 18 is also elastically connected to the outer edge of the mounting plate 4, and the water collecting structure 18 includes a water receiving ring 21 disposed between the mounting plate 4 and the casing 1, the water receiving ring The upper part of the 21 is an open opening, and the bottom is provided with the auxiliary drain port 17, and the water receiving ring 21 is an annular structure, one side of which is connected to the outer edge of the mounting plate 4 through a plurality of elastic suspension members 20, and the other side and the box body 1
  • the mounting structure extending on the inner wall is sealingly connected. When the mounting plate 4 moves up and down, the elastic suspension member 20 will be correspondingly deformed to accommodate the movement of the mounting plate 4.
  • the elastic suspension member 20 is a tension spring, the upper end of the tension spring is connected to the edge of the mounting plate 4, and the lower end is connected to the side wall of the water receiving ring 21, and the tension spring is plural, and along the water receiving ring The inner peripheral side of 21 is evenly arranged.
  • the mounting structure includes a horizontal section 23 horizontally extending from the inner wall of the casing 1 and an annular flange 24 connected to the horizontal section 23 and extending downwardly.
  • One side wall of the water receiving ring 21 is fixed on the back of the annular flange 24.
  • One side of the mounting plate 4 is fixed to the annular flange 24 by a fastening ring 22 in a press-fit manner.
  • the mounting structure and the box body 1 may be integrally formed, or may be separately manufactured and installed on the inner wall of the box body 1 and sealed at the joint.
  • the height of the water retaining ring 12 is slightly higher than the bottom surface of the washing tub 2, and a large gap is reserved between the outer peripheral wall of the washing tub 2 to avoid collision when the washing tub 2 is rotated.
  • the lower end of the drain channel 5 is connected to a drain port at the bottom of the washing tub 2, the drain port is located below the washing machine pulsator, and the drain channel 5 extends to the drain port.
  • the drain channel 5 includes a water channel housing 11 and a part of the washing tub wall. The side of the water channel casing 11 facing the washing tub wall is provided with a vertically penetrating groove, and the water channel casing 11 is fastened to the washing tub wall to form a water flow passage together with the washing tub wall.
  • the water channel housing 11 is similar in structure to the water channel in the inner tub of the existing washing machine, except that the upper end of the water channel housing 11 extends to be connected to the water collecting ring 8, and the side of the water channel housing 11 facing the axis of the washing tub 2 does not have a water outlet.
  • a plurality of side-by-side grooves may be disposed on the water channel housing 11 to form a plurality of water flow passages.
  • the water channel housing 11 is detachably mounted on the washing tub 2, the bottom of the water channel housing 11 is provided with a hook, and the barrel wall of the washing tub 2 is provided with a bayonet fitting with the hook
  • the upper portion of the water channel housing 11 is provided with a screw hole and is fixedly connected to the washing tub 2 by screws.
  • the side of the water channel housing 11 facing the axis of the washing tub is provided with a protrusion or a line for rubbing contact with the laundry, and the surface of the water channel housing 11 facing the axis of the washing tub may be rubbed against the laundry during the washing process.
  • the side of the water collecting ring 8 facing the axial center of the washing tub is a curved surface which gradually washes from the bottom to the bottom along the washing tub axis.
  • the barrel 2 is bent in the center direction, so that the opening of the upper end of the washing tub 2 is gradually reduced, and the dewatering port of the water collecting ring 8 is disposed at the bottom starting end of the curved surface, and the arc of the water collecting ring 8 is formed when the washing water climbs up along the barrel wall.
  • the surface acts to block the water flow from continuing to climb upward, and collects the water flow into the dewatering port of the water collecting ring 8.
  • the power unit is mounted at the bottom of the mounting plate 4, and includes a motor and a reduction clutch.
  • the rotating shaft of the motor is coupled to the bottom of the washing tub through a deceleration clutch to drive the washing tub 2 to rotate.
  • the output shaft of the reduction clutch is connected to the washing tub 2 through the mounting plate 4, and at least one dynamic seal is provided between the output shaft and the mounting plate 4.
  • the bottom of the mounting plate 4 is provided with a plurality of downwardly convex reinforcing ribs.
  • a locking structure 14 is further disposed on the upper surface of the mounting plate 4, and the locking mechanism 14 is located at the bottom of the washing tub 2 and cooperates with the washing tub 2 to restrict the rotation of the washing tub 2.
  • the locking mechanism 14 The washing tub 2 can be locked to prevent the washing tub 2 from rotating. In the washing stage, the locking mechanism 14 locks the washing tub 2 from rotation, and during the dehydrating phase, the locking mechanism 14 is unlocked, so that the washing tub 2 can be rotated.
  • the vibration damping member includes a boom 9 and a boom base 10, the upper end of the boom 9 is connected to the casing 1, and the lower end is connected to the boom base 10.
  • the edge of the mounting plate 4 is provided with a boom base. 10 mating bayonet, the boom base 10 is card-shaped in the bayonet, and is located on the lower side of the mounting plate 4, and a spring is installed in the boom base 10, under the gravity of the mounting plate 4 and the washing tub 2, the boom The spring in the seat 10 is compressed and functions to reduce vibration when the washing tub 2 vibrates.
  • the mounting plate 4 is located at the lower portion of the washing tub 2 such that the boom seat 10 is located below the washing tub 2, and does not occupy the space between the washing tub 2 and the casing 1, which is advantageous for expanding the volume of the washing tub 2.
  • the dehydration process of the present invention is that before the dehydration, the water in the washing tub 2 is first discharged through the drain port at the bottom of the washing tub 2, and then the motor drives the washing tub 2 to rotate at a high speed, and the water remaining in the washing tub 2 is under the action of centrifugal force.
  • the wall of the washing tub climbs upward and enters the water collecting ring 8.
  • the water flow is affected by the water retaining plate 13, changing the flow direction, flowing downward into the drain channel 5, and flowing out along the drain channel 5 to the washing tub.
  • mounting plate 4 and the water retaining ring 12 are integrally designed to form a barrel structure.
  • the drainage channel may be disposed on the outer peripheral wall of the washing tub, and the change in the position does not affect the understanding of the technical solution of the present invention by those skilled in the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Abstract

L'invention concerne une machine à laver, comprenant un corps en forme de boîte (1) ; un tambour de lavage (2) ; une plaque de montage (4) disposée au niveau d'une partie inférieure du tambour de lavage (2), la plaque de montage (4) étant reliée au corps en forme de boîte (1) par l'intermédiaire d'un élément de réduction de vibrations, et le tambour de lavage (2), en tant que tambour contenant de l'eau, pouvant tourner par rapport à la plaque de montage ; une structure de récupération d'eau de type enfoncé (18) disposée entre un bord externe de la plaque de montage (4) et le corps en forme de boîte (1), un côté de la structure de récupération d'eau (18) étant hermétiquement relié à une paroi interne du corps en forme de boîte (1) de façon à récupérer l'eau de lavage s'écoulant le long de la paroi interne du corps en forme de boîte (1) ; et une sortie d'eau secondaire (17) disposée au fond de la structure de récupération d'eau (18), la sortie d'eau secondaire (17) communiquant avec l'extérieur de la machine à laver. Une structure de tambour externe est omise dans la machine à laver susmentionnée, et ainsi l'objectif de renforcer la capacité de la machine à laver est atteint. De plus, le problème d'un court-circuit de la machine à laver provoqué par l'eau de lavage projetée est évité et la durée de vie de la machine à laver est efficacement prolongée.
PCT/CN2018/083722 2017-04-19 2018-04-19 Machine à laver WO2018192548A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019556924A JP6948507B2 (ja) 2017-04-19 2018-04-19 洗濯機

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710257504.5A CN108729101B (zh) 2017-04-19 2017-04-19 一种洗衣机
CN201710257504.5 2017-04-19

Publications (1)

Publication Number Publication Date
WO2018192548A1 true WO2018192548A1 (fr) 2018-10-25

Family

ID=63856473

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/083722 WO2018192548A1 (fr) 2017-04-19 2018-04-19 Machine à laver

Country Status (3)

Country Link
JP (1) JP6948507B2 (fr)
CN (1) CN108729101B (fr)
WO (1) WO2018192548A1 (fr)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN112647237A (zh) * 2019-09-26 2021-04-13 青岛海尔洗衣机有限公司 一种洗衣机
CN112788475A (zh) * 2020-12-31 2021-05-11 广州兵磊贸易有限公司 一种随路面平衡度而维稳的智能制造用音箱辅助装置

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CN110195317A (zh) * 2018-02-27 2019-09-03 青岛海尔洗衣机有限公司 一种洗衣机的洗涤桶及其洗衣机
CN110195319A (zh) 2018-02-27 2019-09-03 青岛海尔洗衣机有限公司 一种洗涤桶和具有该洗涤桶的洗衣机
CN110241562B (zh) * 2018-03-07 2022-03-18 合肥海尔洗衣机有限公司 一种洗衣机的导水结构及安装有该结构的洗涤桶和洗衣机

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JPH0584395A (ja) * 1991-09-30 1993-04-06 Sharp Corp 洗濯機
CN2755140Y (zh) * 2004-10-26 2006-02-01 杭州松下家用电器有限公司 全自动洗衣机
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112647237A (zh) * 2019-09-26 2021-04-13 青岛海尔洗衣机有限公司 一种洗衣机
CN112788475A (zh) * 2020-12-31 2021-05-11 广州兵磊贸易有限公司 一种随路面平衡度而维稳的智能制造用音箱辅助装置

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