WO2020042854A1 - Dispositif d'entraînement pour machine à laver - Google Patents

Dispositif d'entraînement pour machine à laver Download PDF

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Publication number
WO2020042854A1
WO2020042854A1 PCT/CN2019/098401 CN2019098401W WO2020042854A1 WO 2020042854 A1 WO2020042854 A1 WO 2020042854A1 CN 2019098401 W CN2019098401 W CN 2019098401W WO 2020042854 A1 WO2020042854 A1 WO 2020042854A1
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WO
WIPO (PCT)
Prior art keywords
bearing
washing machine
housing
rotor
casing
Prior art date
Application number
PCT/CN2019/098401
Other languages
English (en)
Chinese (zh)
Inventor
卢金波
冯晨
Original Assignee
青岛海尔滚筒洗衣机有限公司
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 青岛海尔滚筒洗衣机有限公司 filed Critical 青岛海尔滚筒洗衣机有限公司
Publication of WO2020042854A1 publication Critical patent/WO2020042854A1/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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/304—Arrangements or adaptations of electric motors
    • 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 

Definitions

  • the invention belongs to the field of washing equipment, and particularly relates to a driving device for a washing machine.
  • the existing drum washing machine especially the DD motor drum washing machine, is provided with a bearing seat integrally on the bottom of the outer bucket, and large bearings and small bearings are installed in the bearing seat.
  • the DD motor is installed outside the bottom of the outer bucket of the outer bucket.
  • the total thickness of the DD motor at the bottom of the outer barrel is very large, causing the size of the front and back of the drum washing machine to be too large.
  • Chinese Patent Application No. CN200810110896.3 discloses a drum washing machine.
  • the bearing seat is embedded in the rear of the outer tub and is prefabricated into an integrated structural part through an injection molding process to improve the space between the outer tub and the bearing seat and between the bearing seat and the drum shaft.
  • the fastening effect between them provides effective vibration reduction and noise reduction for high-speed rotation and dehydration of the drum.
  • It mainly has a shell, and an outer bucket for storing washing water is arranged inside the shell.
  • a motor for providing driving force is connected and fixed at the rear side of the outer bucket.
  • a drum that can rotate and wash is provided inside the outer tub.
  • a drum shaft that transmits a motor driving force to the drum is connected to the rear portion of the drum and penetrates the rear portion of the outer tub, and the rear end of the drum shaft is connected to the motor rotor.
  • a cylindrical bearing seat is provided at the rear of the outer bucket, and the bearing seat is embedded in the rear of the outer bucket and is prefabricated into an integrated structural part through an injection molding process. Inside the bearing block, a front bearing and a rear bearing for supporting the roller shaft are provided, and the front bearing and the rear bearing are pressed into the bearing block with an interference fit.
  • a bearing seat is integrally provided on the outer tub of the washing machine, and then the stator and the rotor of the motor are arranged outside the bearing seat, so that the overall capacity of the washing machine becomes smaller, the front and rear dimensions of the washing machine are increased, and the washing machine is increased The space occupied complicates the assembly process and increases labor costs.
  • the technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, and provide a driving device for a washing machine, in which a stator and a rotor of the driving device are arranged inside a casing, and the capacity of the washing machine and the width of the whole machine are maintained.
  • the front and rear external dimensions of the washing machine are reduced, the space occupied by the washing machine, especially the drum washing machine, is greatly reduced, and the process and labor costs are saved.
  • a driving device for a washing machine includes a rotor, a casing, and a stator mounted on the casing.
  • a first bearing is mounted on the casing, a driving shaft of the washing machine passes through the rotor, and an end portion is supported and mounted on the first On a bearing.
  • stator and the rotor of the driving device are arranged inside the casing, and a first bearing is installed on the casing to cooperate with the driving shaft of the washing machine, while maintaining the capacity of the washing machine and the width of the whole machine, making the The front and rear dimensions are reduced, which greatly reduces the space occupied by washing machines, especially drum washing machines, and saves process and labor costs.
  • the casing includes a first casing located on a side of the stator away from the outer tub of the washing machine, the stator is mounted on the first casing, the first casing is mounted on the outer tub of the washing machine, and the first A housing is provided with a first bearing seat, the first bearing is installed in the first bearing seat, and the driving shaft end portion of the washing machine is supported and mounted on the first bearing in the first bearing seat.
  • the end of the driving shaft of the washing machine is supported and mounted on the first bearing, thereby preventing the driving shaft from shaking.
  • the housing is further provided with a second bearing, and the rotor and the stator are installed in the housing between the first bearing and the second bearing;
  • the driving device is provided outside the bearing seat at the bottom of the outer tub.
  • a second bearing is provided on the second housing, and the rotor and the stator are installed in the housing and located between the first bearing and the first bearing.
  • the drive shaft of the washing machine passes through the second bearing and the rotor, and the end portion is supported and mounted on the first bearing in the first bearing seat.
  • the casing includes a first casing and a second casing, the first casing and the second casing are fastened and fixed inside to form a mounting cavity for mounting the stator and the rotor, and the first casing
  • the body is provided with the first bearing seat
  • the second housing is correspondingly provided with a second bearing seat.
  • a second bearing is installed in the second bearing seat.
  • the drive shaft of the washing machine passes through the second bearing and the rotor in sequence.
  • An end support is mounted on the first bearing.
  • the first case and the second case are cast aluminum or sheet metal stamping structures, and the first case and the second case are press-fitted with the first bearing and the second bearing, respectively.
  • the second casing has a cavity
  • the first casing is a plate-like structure
  • the first casing covers and is installed on the opening of the cavity of the second casing and is fixed to the first casing.
  • the rotor and the stator are both contained in the cavity, and the stator is fixedly connected to the first casing.
  • a recessed mounting portion is provided in the middle of the bottom of the outer barrel, the second casing is mounted in the mounting portion, and the stator is fixed to the stator by a connection method such as a screw or a claw.
  • the first casing and the second casing are combined together by welding or screw connection, together with the first bearing, the second bearing, the stator, and the rotor that have been previously press-fitted and fixed.
  • the first casing and / or the second casing are fixed to the bottom of the outer tub by bolts and positioning posts, and the complete driving apparatus can be integrally installed or disassembled.
  • an oil seal is installed on the second bearing seat on the second housing;
  • the second bearing seat is provided with an annular boss extending to the side of the outer barrel, the oil seal includes an annular body, and the annular body is mounted on the annular boss.
  • the rotor includes a limiting portion, the limiting portion is limited on the second bearing or the second bearing seat, and the second bearing or the second bearing seat limits the movement of the rotor in the radial direction.
  • the design of the limiting portion ensures stable operation of the stator and prevents the stator from oscillating in the radial direction, thereby ensuring stable rotation of the drive shaft without oscillating.
  • the rotor includes a hollow shaft body coaxially disposed with the first bearing and the second bearing and having a mounting hole inside, and the limiting portion includes an open end of the hollow shaft body protruding to the inner ring of the second bearing.
  • a limiting protrusion which is in contact with the inner wall of the inner ring of the second bearing.
  • the inner wall of the mounting hole is provided with an internal spline arranged along the axial center direction, an external spline is correspondingly arranged on the drive shaft, and the limiting portion is the tooth end of the internal spline outward along the axis.
  • a limiting protrusion formed on one side of the bucket extends to the inner ring of the second bearing and is in contact with the inner surface of the inner ring. The second bearing limits the wobble of the rotor in the radial direction.
  • the external splines of the drive shaft and the internal splines in the mounting hole are meshed and driven, and the tooth ends of the internal splines are in contact with the inner ring of the second bearing, and the second bearing restricts the drive shaft from shaking.
  • the diameter of the inner ring of the first bearing is smaller than the diameter of the inner ring of the second bearing
  • the drive shaft includes a first shaft segment that is in interference fit with the first bearing and a second shaft that is in interference fit with the second bearing. Segment, the first shaft segment is supported and mounted on the first bearing through the second bearing and the mounting hole, and the second shaft segment is in interference fit with the second bearing.
  • the rotor includes an extension structure protruding in the radial direction by the hollow shaft body, and an edge of the extension structure is bent toward a side of the first housing to form an annular cavity, and the stator is accommodated in the annular shape.
  • the chamber is connected and fixed with the first casing.
  • the present invention has the following beneficial effects compared with the prior art:
  • the driving device for a washing machine comprises a rotor, a casing, and a stator mounted on the casing.
  • a first bearing is mounted on the casing, a driving shaft of the washing machine passes through the rotor, and an end portion is mounted on
  • the stator and the rotor of the driving device are arranged inside the casing, and the bearing is provided on the casing, so that the front and rear shapes of the washing machine are maintained while the capacity of the washing machine and the width of the whole machine are kept unchanged.
  • the reduced size greatly reduces the space occupied by washing machines, especially drum washing machines, and saves process and labor costs.
  • the inner wall of the mounting hole is provided with an internal spline arranged along the axial center direction, an external spline is correspondingly arranged on the drive shaft, and a limiting portion of the rotor is a tooth of the internal spline.
  • a limiting protrusion formed by extending along the axis to one side of the barrel, the limiting protrusion extending to the inner ring of the second bearing and in contact with the inner surface of the inner ring, the second bearing restricts the rotor in the radial direction Shaking.
  • the external splines of the driving shaft and the internal splines in the mounting hole are meshed and driven.
  • the tooth ends of the internal splines are in contact with the inner ring of the second bearing, and the second bearing restricts the drive shaft from shaking.
  • FIG. 1 is a schematic structural diagram of a driving device for a washing machine according to the present invention.
  • FIG. 2 is an enlarged view of a portion A in FIG. 1;
  • FIG. 3 is a schematic structural view of the driving device for a washing machine according to another aspect of the present invention.
  • stator 1, stator; 2, rotor; 3, first housing; 31, first bearing housing; 311, first bearing; 4, second housing; 41, second bearing housing; 411, second bearing; 5. Oil seal; 6. Hollow shaft body; 61. Internal spline; 62. Limiting convex part; 7. Screw hole; 8. Screw hole.
  • connection should be understood in a broad sense unless otherwise specified and limited, for example, it may be a fixed connection, a detachable connection, or an integrated Ground connection; it can be mechanical or electrical connection; it can be directly connected or it can be indirectly connected through an intermediate medium.
  • installation and “connection” should be understood in a broad sense unless otherwise specified and limited, for example, it may be a fixed connection, a detachable connection, or an integrated Ground connection; it can be mechanical or electrical connection; it can be directly connected or it can be indirectly connected through an intermediate medium.
  • the present invention provides a driving device for a washing machine, which includes a rotor 2, a housing, and a stator 1 mounted on the housing.
  • the housing also has a first bearing 311, and a drive shaft of the washing machine is passed through. An end portion is supported and mounted on the first bearing 311 through the rotor 2.
  • stator 1 and the rotor 2 of the driving device are arranged inside the casing, while the capacity and the width of the whole machine are kept unchanged, the front and rear dimensions of the washing machine are reduced, and the washing machine, especially the drum is greatly reduced.
  • the space occupied by the washing machine saves process and labor costs.
  • the casing comprises a first casing 3 located on a side of the stator 1 away from the outer tub of the washing machine, the stator 1 is mounted on the first casing 3, and the first casing 3 is mounted on the outer tub of the washing machine
  • the first housing 3 is provided with a first bearing seat 31.
  • the first bearing 311 is installed in the first bearing seat 31.
  • the drive shaft of the washing machine passes through the rotor 2, and the end portion is supported and installed. On the first bearing 311 in the first bearing seat 31.
  • the end of the driving shaft of the washing machine is supported and mounted on the first bearing 311, thereby preventing the driving shaft from shaking.
  • the housing is further provided with a second bearing 411, and the rotor 2 and the stator 1 are installed in the housing between the first bearing 311 and the second bearing 411;
  • the driving device is provided outside the bearing seat at the bottom of the outer tub.
  • a second bearing 411 is provided on the second casing, and the rotor 2 and the stator 1 are installed in the casing and located at the first position.
  • the bearing 311 and the second bearing 411 it is equivalent to arranging the driving device inside the bearing seat, so that while maintaining the capacity of the drum washing machine and the width of the whole machine, the front and rear dimensions of the whole machine are reduced, and the drum is greatly reduced.
  • the space occupied by the whole washing machine saves process and labor costs.
  • a second bearing 411 is installed on the outer tub of the washing machine
  • the drive shaft of the washing machine passes through the second bearing 411 and the rotor 2, and an end portion is supported and mounted on the first bearing 311 in the first bearing seat 31.
  • the casing includes a first casing 3 and a second casing 4, and the first casing 3 and the second casing 4 are fastened and fixed inside to form a mounting cavity for mounting the stator 1 and the rotor 2.
  • the first housing is provided with the first bearing housing 31, the second housing is correspondingly provided with a second bearing housing 41, a second bearing 411 is installed in the second bearing housing 41, and the driving of the washing machine
  • the shaft passes through the second bearing 411 and the rotor 2 in order, and an end portion is supported and mounted on the first bearing 311.
  • the first casing 3 and the second casing 4 are cast aluminum or sheet metal stamping structures, and the first casing 3 and the second casing 4 are press-fitted with the first bearing 311 and the second casing, respectively. Bearing 411.
  • the second casing has a cavity
  • the first casing 3 is a plate-like structure.
  • the first casing 3 covers the opening of the cavity of the second casing 4 and communicates with the first casing.
  • the housing 3 is fixedly connected, the rotor 2 and the stator 1 are both contained in the cavity, and the stator 1 is fixedly connected to the first housing.
  • a recessed mounting portion is provided in the middle of the bottom of the outer barrel, the second housing 4 is mounted in the mounting portion, and the stator 1 is fixed to the connection portion by screws or claws.
  • the first housing 3 On the first housing 3; the first housing 3 and the second housing 4 are joined together by welding or screw connection, together with the first bearing 311 and the second bearing 411 which are press-fitted and fixed before The stator 1 and the rotor 2 become a complete driving device; further, the first casing and / or the second casing are fixed to the bottom of the outer barrel by bolts and positioning posts, and the complete driving device is described. Can be installed or removed as a whole.
  • a plurality of screw holes 7 are provided on the first housing 3 around the first bearing, and the stator is fixed on the screw holes 7 by screws.
  • the peripheral edge of the second casing shown is turned outwards to form a mating surface.
  • the first casing 3 shown is a circular plate-like structure, and the peripheral side of the circular plate-like structure is provided. There are a plurality of openings, and a connection plate is provided between the two openings.
  • a screw hole 8 is provided on the outer edge of each connection plate, and a screw hole 8 is correspondingly provided on the edge of the mating surface. Further, a screw hole 8 is provided on the matching surface at a position corresponding to the notch, so as to be fastened on the bottom of the outer tub of the washing machine by screws.
  • an oil seal 5 is mounted on the second bearing seat 41 on the second housing 4;
  • the second bearing seat 41 is provided with an annular boss extending to the side of the outer barrel.
  • the oil seal 5 includes an annular body, and the annular body is mounted on the annular boss.
  • the rotor 2 includes a limiting portion, and the limiting portion is limited on the second bearing 411 or the second bearing block 41, and the second bearing 411 or the second bearing block 41 limits the rotor 2 in a radial direction. activity.
  • the first bearing seat is disposed at a middle position of the first casing, and the second bearing seat is disposed at a middle position of the second casing.
  • the design of the limiting portion ensures stable operation of the stator 1 and prevents the stator 1 from oscillating in the radial direction, thereby ensuring stable rotation of the drive shaft without oscillating.
  • the rotor 2 includes a hollow shaft body 6 coaxially disposed with the first bearing 311 and the second bearing 411 and having a mounting hole inside, and the limiting portion includes a hollow shaft body. 6 A limiting protrusion 62 protruding from the open end to the inner ring of the second bearing 411, and the limiting protrusion 62 is in contact with the inner wall of the inner ring of the second bearing 411.
  • the inner wall of the mounting hole is provided with an internal spline 61 arranged along the axial center direction, an external spline is correspondingly arranged on the drive shaft, and the limiting portion is the tooth end of the internal spline 61 along the axis.
  • a limiting protrusion 62 extending to one side of the outer barrel is formed. The limiting protrusion 62 extends to the inner ring of the second bearing 411 and is in contact with the inner surface of the inner ring. The second bearing 411 limits the rotor 2 to Radial shaking.
  • the diameter of the inner ring of the first bearing 311 is smaller than the diameter of the inner ring of the second bearing 411
  • the drive shaft includes a first shaft segment which is in interference fit with the first bearing 311 and an interference fit with the second bearing 411
  • the second shaft segment is supported and mounted on the first bearing 311 through the second bearing 411 and the mounting hole, and the second shaft segment and the second bearing 411 are in interference fit.
  • the rotor 2 includes an extension structure protruding from the hollow shaft body 6 in a radial direction, and an edge of the extension structure is bent toward a side of the first housing 3 to form an annular cavity. It is in the annular cavity and is connected and fixed with the first shell 3.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

La présente invention concerne un dispositif d'entraînement pour une machine à laver, comprenant un rotor, un carter et un stator disposé sur le carter. Un premier palier est disposé sur le carter ; l'arbre d'entraînement d'une machine à laver passe à travers le rotor et une extrémité est supportée et disposée sur le premier palier. Dans la présente invention, le stator et le rotor du dispositif d'entraînement sont disposés à l'intérieur du carter, le palier est disposé sur le carter, la dimension avant-arrière externe de la machine à laver est réduite tout en maintenant la capacité et la largeur de la machine à laver inchangées, ce qui permet de réduire considérablement l'espace occupé par la machine à laver, en particulier une machine à laver à tambour, et de réduire les procédures et les coûts de main-d'œuvre.
PCT/CN2019/098401 2018-08-27 2019-07-30 Dispositif d'entraînement pour machine à laver WO2020042854A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810978359.4A CN110863326A (zh) 2018-08-27 2018-08-27 一种洗衣机用驱动装置
CN201810978359.4 2018-08-27

Publications (1)

Publication Number Publication Date
WO2020042854A1 true WO2020042854A1 (fr) 2020-03-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/098401 WO2020042854A1 (fr) 2018-08-27 2019-07-30 Dispositif d'entraînement pour machine à laver

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CN (1) CN110863326A (fr)
WO (1) WO2020042854A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114135844A (zh) * 2021-12-17 2022-03-04 广州市雅江光电设备有限公司 一种摇头灯u型架结构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2458327Y (zh) * 2000-12-31 2001-11-07 江门市机床厂有限公司 洗衣机搓洗式直接驱动装置
JP2002306890A (ja) * 2002-04-08 2002-10-22 Sanyo Electric Co Ltd ドラム式洗濯機
CN106757995A (zh) * 2016-12-21 2017-05-31 广东威灵电机制造有限公司 用于洗衣机的驱动机构

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3548144B2 (ja) * 2001-09-06 2004-07-28 三洋電機株式会社 ドラム式洗濯機
KR101026083B1 (ko) * 2008-12-23 2011-03-31 주식회사 아모텍 슬림형 스테이터 및 그의 제조방법
CN105624965B (zh) * 2014-10-30 2019-07-23 青岛海尔洗衣机有限公司 一种洗涤装置
CN109790675A (zh) * 2016-09-08 2019-05-21 菲舍尔和佩克尔应用有限公司 电器直接驱动电机安装装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2458327Y (zh) * 2000-12-31 2001-11-07 江门市机床厂有限公司 洗衣机搓洗式直接驱动装置
JP2002306890A (ja) * 2002-04-08 2002-10-22 Sanyo Electric Co Ltd ドラム式洗濯機
CN106757995A (zh) * 2016-12-21 2017-05-31 广东威灵电机制造有限公司 用于洗衣机的驱动机构

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Publication number Publication date
CN110863326A (zh) 2020-03-06

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