WO2019080903A1 - 一种洗衣机 - Google Patents

一种洗衣机

Info

Publication number
WO2019080903A1
WO2019080903A1 PCT/CN2018/111925 CN2018111925W WO2019080903A1 WO 2019080903 A1 WO2019080903 A1 WO 2019080903A1 CN 2018111925 W CN2018111925 W CN 2018111925W WO 2019080903 A1 WO2019080903 A1 WO 2019080903A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
output shaft
bearing
washing machine
cylinder
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.)
Ceased
Application number
PCT/CN2018/111925
Other languages
English (en)
French (fr)
Inventor
张华成
李敬德
卢金波
冯晨
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 WO2019080903A1 publication Critical patent/WO2019080903A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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 
    • 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 
    • D06F23/02—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 horizontal 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
    • D06F37/30—Driving arrangements 
    • D06F37/40—Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively

Definitions

  • the present invention relates to a washing machine.
  • the existing drum washing machine comprises an inner tube and an outer tube.
  • the outer tube is generally made of plastic material for holding water;
  • the inner tube is made of stainless steel, and the inner tube body has a water-permeable hole for washing clothes, and the inner tube is rear.
  • the center is fixed with an inner cylinder shaft, and the other end of the inner cylinder shaft is connected to the rotor of the motor through the bottom of the outer cylinder, and the inner cylinder shaft is used for transmitting rotational power, and the rotor of the motor drives the inner cylinder to rotate through the inner cylinder shaft.
  • the outer cylinder is fixed and the inner cylinder is rotated by the motor.
  • the inner cylinder shaft is located at the outer cylinder portion and needs to be supported by two bearings of different sizes, and the bearing is press-fitted into the bearing support seat of the outer cylinder through the tooling.
  • the motor is installed outside the bottom of the outer cylinder, and the total thickness of the motor at the bottom of the outer cylinder is large, which causes the drum washing machine to be oversized before and after the whole machine.
  • the output shaft of the motor drives the inner cylinder to rotate, but after a long time of use, severe wear and looseness may occur, which may affect the rotation of the inner cylinder.
  • the object of the present invention is to provide a washing machine for improving the reliability of the connection between the output shaft of the motor and the inner cylinder, and the front and rear outer dimensions of the whole machine are maintained while maintaining the capacity of the drum washing machine and the width of the whole machine. Reduced.
  • a washing machine comprises an outer cylinder, an inner cylinder sleeved inside the outer cylinder and a motor disposed outside the outer cylinder, wherein the motor output shaft is connected to the inner cylinder through the outer cylinder, and the motor casing is connected with the outer cylinder bottom, and A first bearing and a second bearing for supporting the output shaft of the motor are respectively disposed on both sides of the motor casing.
  • the motor casing is in close contact with the bottom of the outer cylinder
  • the bottom of the outer cylinder is provided with a recessed mounting groove, and the motor sinks inside the mounting groove.
  • motor casing is connected to the bottom of the outer cylinder via bolts;
  • the outer circumference of the outer casing of the motor is connected to the outer cylinder bottom via a plurality of bolts.
  • the motor output shaft is connected to the inner cylinder via a bolt
  • the motor output shaft is provided with a radially protruding connecting portion, the motor output shaft coincides with the inner cylinder axis, and the connecting portion passes through the outer cylinder corresponding to the outer circumference of the inner bottom of the inner cylinder, and is fixedly connected by bolts.
  • the bottom of the inner cylinder is provided with a positioning protrusion extending toward the outer cylinder axis and disposed outside the connecting portion, and the positioning protrusion is in contact with the connecting portion.
  • the bottom of the outer cylinder is provided with an opening through which the connecting portion passes, and after the connecting portion passes through the opening, the motor casing sealed and connected with the output shaft of the motor seals the gap between the opening and the output shaft of the motor.
  • the driving structure of the motor is sandwiched between the first bearing and the second bearing.
  • the output shafts of the motor have different specifications at both ends, and the large-sized one end passes through the first bearing to realize the support positioning, and passes through the motor casing to be disposed outside the casing to form the shaft extension end, and the small-sized one end is the non-shaft extension end. And passing through the second bearing to achieve the support positioning, and the bolt is engaged with the second bearing.
  • one end of the rotor of the motor connected to the output shaft is provided with a first support portion and a second support portion respectively extending to both ends of the output shaft, and the ends of the first support portion and the second support portion are respectively respectively first
  • the bearing and the second bearing are in conflict.
  • the non-axial end of the output shaft of the motor is provided with an axially recessed screw hole, which is connected to the bolt screw through the second bearing, and the bolt nut protrudes radially from the non-axial end of the output shaft, and The second bearing phase is locked.
  • the present invention has the following beneficial effects:
  • the washing machine motor of the present invention is equivalent to incorporating the bearing, the inner cylinder shaft and the oil seal in the existing drum washing machine into the motor, and then mounting the motor in the position of the original bearing seat, the thickness of the original DD motor is omitted, and the drum washing machine is maintained.
  • the capacity and the width of the whole machine are the same, the maximum outer dimensions of the whole machine are reduced, which greatly reduces the space occupied by the whole washing machine.
  • the invention fixes the shaft extension end of the motor output shaft through the bolt and the inner cylinder, thereby avoiding the wear and looseness caused by the meshing connection, improving the reliability of the connection between the output shaft of the motor and the inner cylinder, and the operation is simple and quick. .
  • FIG. 1 is a schematic structural view of a novel DD motor provided by the present invention
  • Figure 2 is a cross-sectional view of a novel DD motor provided by the present invention.
  • FIG. 3 is a structural exploded view of a novel DD motor provided by the present invention.
  • Figure 4 is a cross-sectional view of the washing machine provided by the present invention.
  • Figure 5 is an enlarged view of a portion A in Figure 4.
  • this embodiment describes a new type of DD motor, including a housing 3, the housing 3 is provided with a drive structure 37 including a stator 4 and a rotor 5, driven by the drive structure 37 to rotate the output shaft 6;
  • the two ends of the output shaft 6 are respectively supported on the outer casing 3 via the first bearing 7 and the second bearing 10 disposed on both sides of the outer casing 3.
  • the driving structure 37 is clamped between the first bearing 7 and the second bearing 10 to Reduce the motor volume.
  • the present invention sandwiches between the first bearing 7 and the second bearing 10 provided on the sides of the outer casing 3 for supporting the output shaft 6 driven to rotate by the drive structure 37 by the drive structure 37 including the stator 4 and the rotor 5.
  • the distance between the driving structure 37 and the inner wall of the accommodating chamber formed by the outer casing 3 is minimized, and the rotation of the rotor 5 is not affected, thereby reducing the volume of the motor 27 and making the motor 27 more compact and beautiful.
  • one end of the rotor 5 connected to the output shaft 6 is provided with a first support portion 22 and a second support portion 23 extending toward both ends of the output shaft 6, respectively, and ends of the first support portion 22 and the second support portion 23 The portions are in contact with the first bearing 7 and the second bearing 10, respectively.
  • At least a portion of the first bearing 7 and/or the second bearing 10 coincides radially with the drive structure 37, which further reduces the volume of the motor 27.
  • the difference between the embodiment and the first embodiment is that the output shaft 6 has two shaft segments with different circumferential diameters, and one end of the large diameter passes through the first bearing 7 to achieve support positioning and wear.
  • the outer casing 3 is disposed outside the outer casing 3 to form a shaft extending end; the end with a small circumference is a non-shaft extending end, which passes through the second bearing 10 to achieve support positioning, and is locked by the bolt and the second bearing 10 .
  • the output shaft 6 is meshed with the rotor 5.
  • the non-axially extending end of the output shaft 6 is provided with an axially recessed screw hole 14 which is screwed to the bolt 13 through a second bearing 10 provided on the outer casing 3, and the nut of the bolt 13 is radially convex.
  • the non-axial end of the output shaft 6 is engaged with the second bearing 10 to be engaged.
  • the screw hole 13 is screwed to the screw hole 14 by providing a screw hole 14 at the non-shaft end of the output shaft 6 of the motor 27, and the nut of the bolt 13 axially limits the output shaft 6, which is related to the prior art.
  • the shaft end of the output shaft 6 is provided with a radially protruding connecting portion 16, and the connecting portion 16 is provided with a recessed screw hole and/or a protruding screw for connection with the device to be driven. It is also possible to provide the recessed screw holes and/or the protruding screws directly to the shaft end of the output shaft 6.
  • the rotor 27 of the motor 27 extends radially from the output shaft 6 and includes a first extension 19 formed gradually adjacent to the axial extension of the output shaft 6.
  • the end of the first extension 19 gradually extends away from the axial extension of the output shaft 6 to form a second extension.
  • the end of the second extension portion 20 is provided with a winding of the rotor 5, and the stator 4 of the motor 27 is disposed inside the winding of the rotor 5.
  • the second extension portion 20 is provided with a winding of the rotor 5 at one end, and a third extension portion 21 extending toward the output shaft 6 at the other end.
  • the third extension portion 21 is disposed at one side of the first extension portion 19, and the end portion thereof is The output shafts 6 are connected.
  • the first extension 19 and the third extension 21 are fixedly connected via a plurality of axially extending reinforcements 35.
  • the difference between the embodiment and the first embodiment and the second embodiment is that the outer ring of the second bearing 10 is fixedly connected with the outer casing 3, and the non-axial end of the output shaft 6 passes through the second bearing 10.
  • the inner ring is screwed to the bolt 13 , and the bolt 13 is engaged with the inner ring of the second bearing 10 and has a gap with the outer ring of the second bearing 10 .
  • the second bearing 10 described above has a longer service life than bearings of other configurations.
  • the outer casing 3 is provided with a second through hole 11
  • the second bearing 10 is disposed inside the second through hole 11 and has an interference fit, so that the outer ring of the second bearing 10 is fixedly connected with the outer casing 3 .
  • At least one end of the second through hole 11 is bent inwardly to form a second engaging portion 12, and the second engaging portion 12 is engaged with the outer ring of the second bearing 10, and is coupled to the second bearing 10 There is a gap between the inner rings; more preferably, the two ends of the second through holes 11 are respectively provided with the second engaging portions 12.
  • the present embodiment differs from the first to third embodiments in that the shaft end of the output shaft 6 passes through the first bearing 7 and the outer casing 3 provided on the outer casing 3, and is disposed outside the outer casing 3.
  • the outer ring of the first bearing 7 is fixedly coupled to the outer casing 3, and the shaft end of the output shaft 6 passes through the inner ring of the first bearing 7 and the outer casing 3, and is disposed outside the outer casing 3.
  • the second bearing 10 described above has a longer service life than bearings of other configurations.
  • the outer casing 3 is provided with a first through hole 8 , and the first bearing 7 is placed inside the first through hole 8 and has an interference fit, so that the outer ring of the first bearing 7 is fixedly connected with the outer casing 3 .
  • At least one end of the first through hole 8 is bent inwardly to form a first engaging portion 9 , and the first engaging portion 9 is engaged with the outer ring of the first bearing 7 and is coupled to the first bearing 7 There is a gap between the inner rings; more preferably, both ends of the first through hole 8 are respectively provided with a first engaging portion 9.
  • the ends of the first support portion 22 and the second support portion 23 are in contact with the inner rings of the first bearing 7 and the second bearing 10, respectively, and between the outer ring of the first bearing 7 and the second bearing 10 With a gap.
  • the first support portion 22 and the second support portion 23 provided above improve the reliability of the connection between the rotor 5 of the motor 27 and the output shaft 6 while achieving the clamping position of the drive structure 37.
  • the outer casing 3 includes a detachably connected casing 2 and a base 1.
  • the central portion of the casing 2 protrudes toward the first side, the outer periphery is connected to the base 1, and constitutes a accommodating chamber.
  • the output shaft 6 is disposed inside the accommodating chamber and outputs The shaft end of the shaft 6 passes through the housing 2 and is disposed outside the outer casing 3, and the non-axial end is disposed on the base 1.
  • the housing 2 and the base 1 are fixedly connected via a fixing bolt 24.
  • the housing 2 is provided with a first opening 34.
  • the first opening 34 is recessed toward the second side of the housing 2 to form a first molding 30.
  • the inner ring of the first molding 30 constitutes a first passage for mounting the first bearing 7.
  • the hole 8 and the outer ring of the first pressing die 30 are sleeved with an annular first reinforcing member 17, and the inner ring of the first reinforcing member 17 is in contact with the inner ring of the first pressing die 30, and the outer ring and the first ring
  • the outer ring of a press type 30 is supported to resist.
  • the base 1 is provided with a second opening 33, and the second opening 33 is recessed to form a second pressing shape 29 on the first side of the housing 2, and the inner ring of the second pressing type 29 constitutes a second opening for mounting the second bearing 10.
  • the outer ring of the second pressing type 29 is sleeved with an annular second reinforcing member 18, and the inner ring of the second reinforcing member 18 is supported by the inner ring of the second pressing type 29, and the outer ring and the first ring The outer ring of the second press type 29 is supported to resist.
  • the difference between the embodiment and the first embodiment is that the outer end of the shaft end of the output shaft 6 is sleeved with an annular oil seal 15, and the inner ring of the oil seal 15 is sealed with the output shaft 6.
  • the outer ring is bent toward the outer casing 3 and sealed with the outer casing 3 and snap-fitted.
  • the inner ring of the oil seal 15 is sealingly connected to the output shaft 6 via a sealing ring having elastic contraction properties, and the sealing ring is sleeved outside the shaft extending end of the output shaft 6, and one end thereof is pressed to the inner ring and the output of the oil seal 15. Between the shafts 6, the other end is provided with a positioning portion protruding radially outward, and the positioning portion is sealingly connected with the outer circumference of the inner ring of the oil seal 15.
  • this embodiment introduces a washing machine equipped with the novel DD motor 27 as described above, including an outer cylinder 26, an inner cylinder 25 sleeved inside the outer cylinder 26, and an outer cylinder 26.
  • the external motor 27, the output shaft of the motor 27 is connected to the inner cylinder 25 through the outer cylinder 26, the outer casing of the motor 27 is connected to the bottom of the outer cylinder 26, and the outer sides of the outer casing of the motor 27 are respectively provided for supporting the output shaft of the motor 27.
  • the washing machine motor 27 of the present invention is equivalent to incorporating the bearing, the inner cylinder shaft and the oil seal in the existing drum washing machine into the motor, and then mounting the motor 27 at the position of the original bearing seat, the thickness of the original DD motor is omitted, and the drum washing machine is maintained.
  • the capacity and the width of the whole machine are the same, the maximum outer dimensions of the whole machine are reduced, which greatly reduces the space occupied by the whole washing machine.
  • the outer casing of the motor 27 is in close contact with the bottom of the outer cylinder 26.
  • the above arrangement reduces the footprint of the entire machine by reducing the gap between the motor 27 and the outer cylinder 26.
  • the bottom of the outer cylinder 26 is provided with a recessed mounting groove 36, and the motor 27 is sunk inside the mounting groove 36.
  • the mounting groove 36 provided above also achieves radial positioning of the motor 27.
  • the outer casing of the motor 27 is connected to the bottom of the outer cylinder 26 via a bolt; preferably, the outer circumference of the outer casing of the motor 27 is connected to the bottom of the outer cylinder 26 via a plurality of bolts.
  • the difference between this embodiment and the sixth embodiment is that the output shaft of the motor 27 is connected to the inner cylinder 25 via a bolt.
  • the invention is fixedly connected to the inner cylinder 25 by bolts of the output shaft 6 of the motor 27, thereby avoiding wear and looseness caused by the meshing connection, improving the reliability of the connection of the output shaft 6 of the motor 27 and the inner cylinder 25, and the operation is simple and quick.
  • the bolt is connected to the screw hole provided at the shaft end of the output shaft 6 of the motor 27 through the inner cylinder 25.
  • the difference between this embodiment and the sixth and seventh embodiments is that the shaft end of the output shaft 6 of the motor 27 is provided with a radially protruding connecting portion 16, and the motor 27 outputs the shaft 6 and the inner cylinder 25.
  • the axes coincide, and the connecting portion 16 passes through the outer cylinder 26 and corresponds to the outer circumference of the center of the inner cylinder 25, and is fixedly connected by bolts.
  • the above connection method improves the reliability of the connection of the output shaft 6 of the motor 27 to the inner cylinder 25.
  • the bolt is connected to the screw hole provided on the connecting portion 16 through the inner cylinder 25; or the bolt is connected to the screw hole provided on the inner cylinder 25 through the connecting portion 16; or the bolt sequentially passes through the connecting portion 16 and the inner cylinder 25 is connected to the nut.
  • the rear side of the inner cylinder 25 is provided with a tripod 28, and the bolts fixedly connect the inner cylinder 25, the tripod 28 and the output shaft 6 of the motor 27.
  • the bottom of the inner cylinder 25 is provided with a positioning protrusion 32 extending axially outwardly of the outer tube 26 and disposed outside the connecting portion 16, and the positioning protrusion 32 is in contact with the connecting portion 16 to be in contact with each other.
  • the above arrangement further improves the reliability of the connection of the output shaft 6 of the motor 27 to the inner cylinder 25.
  • the bottom of the outer cylinder 26 is provided with an opening 31 through which the connecting portion 16 passes.
  • the motor 27 is sealed and connected to the output shaft 6 of the motor 27 to seal the opening. The gap between 31 and the output shaft 6 of the motor 27.
  • the above arrangement prevents moisture from entering between the motor 27 and the outer cylinder 26.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

一种洗衣机，包括外筒（26）、套设于外筒（26）内部的内筒（25）和设于外筒（26）外部的电机（27），电机输出轴（6）穿过外筒（26）与内筒（25）相连接，电机外壳（3）与外筒筒底相连接，且电机外壳（3）的两侧分别设有用于支撑电机输出轴（6）的第一轴承（7）和第二轴承（10）。洗衣机电机（27）相当于把现有滚筒洗衣机中的轴承、内筒轴及油封纳入电机内部，然后将电机（27）安装在原轴承座的位置，原DD电机的厚度被省掉，在保持滚筒洗衣机容量及整机宽度不变的情况下，整机的前后最大外形尺寸减小，大大减少了滚筒洗衣机整机占用的空间。通过将电机输出轴（6）的轴伸端经螺栓与内筒（25）相固定连接，避免了啮合连接造成的磨损、松动，提高了电机输出轴（6）与内筒（25）连接的可靠性，且操作简单、快捷。

Description

一种洗衣机 技术领域
本发明涉及一种洗衣机。
背景技术
现有的滚筒洗衣机包含有内筒和外筒，外筒一般为塑料材质，用于盛水；内筒为不锈钢材质，内筒筒体带有透水孔，用于盛洗涤衣物，内筒后部中心固定有内筒轴，内筒轴的另一端穿过外筒的底部与电机的转子连接，内筒轴用于传递转动动力，电机的转子通过内筒轴带动内筒转动。滚筒洗衣机运行时，外筒固定不动，内筒在电机带动下转动。为保证内筒正常转动，内筒轴位于外筒的部分需要通过大小两个轴承支撑，而轴承通过工装压装在外筒的轴承支撑座中。在上述方案中，电机安装在外筒后筒底之外，外筒后筒底加电机的总厚度很大，造成滚筒洗衣机整机前后尺寸过大。
现有技术采用啮合的方式使电机输出轴带动内筒转动，但长时间使用后，会发生严重磨损、松动现象，影响内筒的转动。
有鉴于此，特提出本发明。
发明内容
本发明的目的在于提供一种洗衣机，以实现提高电机输出轴与内筒连接的可靠性的目的，且该洗衣机在保持滚筒洗衣机容量及整机宽度不变的情况下，整机的前后外形尺寸减小。
为实现该目的，本发明采用如下的技术方案：
一种洗衣机，包括外筒、套设于外筒内部的内筒和设于外筒外部的电机，电机输出轴穿过外筒与内筒相连接，电机外壳与外筒筒底相连接，且电机外壳的两侧分别设有用于支撑电机输出轴的第一轴承和第二轴承。
进一步地，电机外壳与外筒筒底相贴合接触；
优选的，外筒筒底设有凹陷的安装槽，电机沉陷于安装槽内部。
进一步地，电机外壳经螺栓与外筒筒底相连接；
优选的，电机的外壳外周经多个螺栓与外筒筒底相连接。
进一步地，电机输出轴经螺栓与内筒相连接；
优选的，电机输出轴设有径向凸出的连接部，电机输出轴与内筒轴线相重合，连接部穿过外筒与内筒筒底中心外周相对应，并经螺栓相固定连接。
进一步地，内筒筒底设有朝外筒轴线延伸的、并设于连接部外部的定位凸，定位凸与连接部相限位抵触。
进一步地，外筒筒底上设有供连接部穿过的开孔，连接部穿过开孔后，与电机输出轴相密封连接的电机外壳密封开孔与电机输出轴之间的间隙。
进一步地，电机的驱动结构夹持于第一轴承和第二轴承之间。
进一步地，电机的输出轴两端的规格不同，规格大的一端穿过第一轴承以实现支撑定位，并穿过电机外壳以设于外壳外部构成轴伸端，规格小的一端为非轴伸端，其穿过第二轴承以实现支撑定位，且经螺栓与第二轴承相限位卡接。
进一步地，电机的转子与输出轴相连接的一端设有分别向输出轴的两端延伸的第一支撑部和第二支撑部，第一支撑部和第二支撑部的端部分别与第一轴承和第二轴承相抵触。
进一步地，电机的输出轴非轴伸端设有轴向凹陷的螺孔，其穿过第二轴承与螺栓螺杆相连接，螺栓螺帽径向凸出于输出轴的非轴伸端，并与第二轴承相限位卡接。
与现有技术相比，本发明具有如下有益效果：
1、本发明的洗衣机电机相当于把现有滚筒洗衣机中的轴承、内筒轴及油封纳入电机内部，然后将电机安装在原轴承座的位置，原DD电机的厚度被省掉，在保持滚筒洗衣机容量及整机宽度不变的情况下，整机的前后最大外形尺寸减小，大大减少了滚筒洗衣机整机占用的空间。
2、本发明通过将电机输出轴的轴伸端经螺栓与内筒相固定连接，避免了啮合连接造成的磨损、松动，提高了电机输出轴与内筒连接的可靠性，且操作简单、快捷。
附图说明
附图作为本发明的一部分，用来提供对本发明的进一步的理解，本发明的示意性实施例及其说明用于解释本发明，但不构成对本发明的不当限定。显然，下面描述中的附 图仅仅是一些实施例，对于本领域普通技术人员来说，在不付出创造性劳动的前提下，还可以根据这些附图获得其他附图。在附图中：
图1为本发明所提供的新型DD电机的结构示意图；
图2为本发明所提供的新型DD电机的剖视图；
图3为本发明所提供的新型DD电机的结构爆炸图；
图4为本发明所提供的洗衣机的剖视图；
图5为图4中A处的放大图；
其中各组成名称如下：
1——底座，2——壳体，3——外壳，4——定子，5——转子，6——输出轴，7——第一轴承，8——第一通孔，9——第一卡接部，10——第二轴承，11——第二通孔，12——第二卡接部，13——螺栓，14——螺孔，15——油封，16——连接部，17——第一加强件，18——第二加强件，19——第一延伸部，20——第二延伸部，21——第三延伸部，22——第一支撑部，23——第二支撑部，24——固定螺栓，25——内筒，26——外筒，27——电机，28——三角架，29——第二压型，30——第一压型，31——开孔，32——定位凸，33——第二开口，34——第一开口，35——加强部，36——安装槽，37——驱动结构。
需要说明的是，这些附图和文字描述并不旨在以任何方式限制本发明的构思范围，而是通过参考特定实施例为本领域技术人员说明本发明的概念。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面对实施例中的技术方案进行清楚、完整地描述，以下实施例用于说明本发明，但不用来限制本发明的范围。
实施例一
如图1-3所示，本实施例介绍了一种新型DD电机，包括外壳3，外壳3内部设有包括定子4和转子5的驱动结构37，由驱动结构37驱动旋转的输出轴6；输出轴6的两端分别经设于外壳3两侧的第一轴承7和第二轴承10支撑定位于外壳3上，驱动结构37夹持于第一轴承7和第二轴承10之间，以减小电机体积。
本发明通过将包括定子4和转子5的驱动结构37夹持于设于外壳3两侧的、用于支撑由驱动结构37驱动旋转的输出轴6的第一轴承7和第二轴承10之间，最大程度地减小了驱动结构37与外壳3构成的容纳腔室内壁之间的距离，同时不影响转子5的旋 转，从而减小了电机27的体积，使电机27更为小巧、美观。
具体地，转子5与输出轴6相连接的一端设有分别向输出轴6的两端延伸的第一支撑部22和第二支撑部23，第一支撑部22和第二支撑部23的端部分别与第一轴承7和第二轴承10相抵触。
优选的，第一轴承7和/或第二轴承10的至少部分与驱动结构37在径向上相重合，上述设置进一步减小了电机27的体积。
实施例二
如图1-3所示，本实施例与实施例一的区别在于，输出轴6两端为周径不同的轴段，周径大的一端穿过第一轴承7以实现支撑定位，并穿过外壳3以设于外壳3外部构成轴伸端；周径小的一端为非轴伸端，其穿过第二轴承10以实现支撑定位，且经螺栓与第二轴承10相限位卡接。其中，输出轴6与转子5相啮合连接。
上述结构实现了输出轴6的轴向定位。
具体地，输出轴6的非轴伸端设有轴向凹陷的螺孔14，其穿过设于外壳3上的第二轴承10与螺栓13相螺纹连接，螺栓13的螺帽径向凸出于输出轴6的非轴伸端，并与第二轴承10相限位卡接。
本发明通过在电机27输出轴6的非轴伸端设置螺孔14，使螺栓13与螺孔14相螺纹连接，螺栓13的螺帽对输出轴6进行轴向限位，与现有技术相比，无需在输出轴6的非轴伸端具有较长的螺纹连接部，从而降低了生产成本，减小了输出轴6的占用空间，减小了电机27的体积。
优选的，输出轴6的轴伸端设有径向凸出的连接部16，连接部16上设有凹陷的螺孔和/或凸出的螺杆，以与待驱动装置连接。还可以，将凹陷的螺孔和/或凸出的螺杆直接设于输出轴6的轴伸端。
电机27转子5自输出轴6呈径向延伸，包括逐渐靠近输出轴6轴伸端形成的第一延伸部19，第一延伸部19的端部逐渐远离输出轴6轴伸端形成第二延伸部20，第二延伸部20的端部设有转子5绕组，电机27定子4设于转子5绕组内侧。第二延伸部20的一端设有转子5绕组，另一端设有向输出轴6延伸形成的第三延伸部21，第三延伸部21设于第一延伸部19的一侧，其端部与输出轴6相连接。第一延伸部19和第三延伸部21经多个轴向延伸的加强部35相固定连接。
实施例三
如图1-3所示，本实施例与实施例一、二的区别在于，第二轴承10的外圈与外壳3相固定连接，输出轴6的非轴伸端穿过第二轴承10的内圈与螺栓13相螺纹连接，螺栓13螺帽与第二轴承10的内圈相限位卡接，并与第二轴承10的外圈之间具有间隙。
与其他结构的轴承相比，上述第二轴承10的使用寿命更长。
具体地，外壳3上设有第二通孔11，第二轴承10置于第二通孔11内部并相过盈配合，使第二轴承10的外圈与外壳3相固定连接。
优选的，第二通孔11的至少一端向内部弯折形成第二卡接部12，第二卡接部12与第二轴承10的外圈相限位卡接，并与第二轴承10的内圈之间具有间隙；更优选的，第二通孔11的两端分别设有第二卡接部12。
实施例四
如图1-3所示，本实施例与实施例一至三的区别在于，输出轴6的轴伸端穿过设于外壳3上的第一轴承7和外壳3，并设于外壳3外部。
第一轴承7的外圈与外壳3相固定连接，输出轴6的轴伸端穿过第一轴承7的内圈和外壳3，并设于外壳3外部。
与其他结构的轴承相比，上述第二轴承10的使用寿命更长。
具体地，外壳3上设有第一通孔8，第一轴承7置于第一通孔8内部并相过盈配合，使第一轴承7的外圈与外壳3相固定连接。
优选的，第一通孔8的至少一端向内部弯折形成第一卡接部9，第一卡接部9与第一轴承7的外圈相限位卡接，并与第一轴承7的内圈之间具有间隙；更优选的，第一通孔8的两端分别设有第一卡接部9。
相应地，第一支撑部22和第二支撑部23的端部分别与第一轴承7和第二轴承10的内圈相抵触，并与第一轴承7和第二轴承10的外圈之间具有间隙。
上述设置的第一支撑部22和第二支撑部23在实现驱动结构37的夹持定位的同时，还提高了电机27转子5与输出轴6连接的可靠性。
外壳3包括可拆卸连接的壳体2和底座1，壳体2的中部向第一侧凸出，外周与底座1相连接，并构成容纳腔室，输出轴6设于容纳腔室内部，输出轴6的轴伸端穿过壳 体2，并设于外壳3外部，非轴伸端设于底座1上。壳体2和底座1经固定螺栓24相固定连接。
壳体2上设有第一开口34，第一开口34外周向壳体2第二侧凹陷形成第一压型30，第一压型30的内圈构成供第一轴承7安装的第一通孔8，且第一压型30的内圈外部套设有环状的第一加强件17，第一加强件17的内圈与第一压型30的内圈相支撑抵触，外圈与第一压型30的外圈相支撑抵触。底座1上设有第二开口33，第二开口33外周向壳体2的第一侧凹陷形成第二压型29，第二压型29的内圈构成供第二轴承10安装的第二通孔11，且第二压型29的内圈外部套设有环状的第二加强件18，第二加强件18的内圈与第二压型29的内圈相支撑抵触，外圈与第二压型29的外圈相支撑抵触。
实施例五
如图1-3所示，本实施例与实施例一至四的区别在于，输出轴6的轴伸端外部套设有环状的油封15，油封15的内圈与输出轴6相密封连接，外圈向外壳3方向弯折，并与外壳3相密封并卡扣连接。
将本发明的电机27应用于洗衣机上，相当于把现有滚筒洗衣机中的轴承、内筒25轴及油封15纳入电机27内部，然后将电机27安装在原轴承座的位置，原DD电机27的厚度被省掉，在保持滚筒洗衣机容量及整机宽度不变的情况下，整机的前后最大外形尺寸减小，大大减少了滚筒洗衣机整机占用的空间。
优选的，油封15的内圈经具有弹性收缩性质的密封环与输出轴6相密封连接，密封环套设于输出轴6的轴伸端外部，其一端挤压至油封15的内圈与输出轴6之间，另一端设有径向向外凸出的定位部，定位部与油封15内圈外周相密封连接。
实施例六
如图4、5所示，本实施例介绍了一种装有如上所述的新型DD电机27的洗衣机，包括外筒26、套设于外筒26内部的内筒25和设于外筒26外部的电机27，电机27输出轴穿过外筒26与内筒25相连接，电机27外壳与外筒26筒底相连接，且电机27外壳的两侧分别设有用于支撑电机27输出轴的第一轴承7和第二轴承10。
本发明的洗衣机电机27相当于把现有滚筒洗衣机中的轴承、内筒轴及油封纳入电机内部，然后将电机27安装在原轴承座的位置，原DD电机的厚度被省掉，在保持滚筒洗衣机容量及整机宽度不变的情况下，整机的前后最大外形尺寸减小，大大减少了滚筒洗衣机整机占用的空间。
优选的，电机27外壳与外筒26筒底相贴合接触。
上述设置通过减小电机27与外筒26之间的间隙，减小了整机的占用空间。
更优选的，外筒26筒底设有凹陷的安装槽36，电机27沉陷于安装槽36内部。
上述设置的安装槽36还实现了电机27的径向定位。
其中，电机27外壳经螺栓与外筒26筒底相连接；优选的，电机27的外壳外周经多个螺栓与外筒26筒底相连接。
实施例七
如图4、5所示，本实施例与实施例六的区别在于，电机27输出轴经螺栓与内筒25相连接。
本发明通过将电机27输出轴6经螺栓与内筒25相固定连接，避免了啮合连接造成的磨损、松动，提高了电机27输出轴6与内筒25连接的可靠性，且操作简单、快捷。螺栓穿过内筒25与设于电机27输出轴6轴伸端的螺孔相连接。
实施例八
如图4、5所示，本实施例与实施例六、七的区别在于，电机27输出轴6的轴伸端设有径向凸出的连接部16，电机27输出轴6与内筒25轴线相重合，连接部16穿过外筒26与内筒25筒底中心外周相对应，并经螺栓相固定连接。
上述连接方式提高了电机27输出轴6与内筒25连接的可靠性。
螺栓穿过内筒25与设于连接部16上的螺孔相连接；或者螺栓穿过连接部16与设于内筒25上的螺孔相连接；或者螺栓依次穿过连接部16、内筒25与螺母相连接。
内筒25筒底后侧设有三角架28，螺栓将内筒25、三角架28和电机27输出轴6相固定连接。
优选的，内筒25筒底设有朝外筒26轴向延伸的、并设于连接部16外部的定位凸32，定位凸32与连接部16相限位抵触。
上述设置进一步提高了电机27输出轴6与内筒25连接的可靠性。
更优选的，外筒26筒底上设有供连接部16穿过的开孔31，连接部16穿过开孔31后，与电机27输出轴6相密封连接的电机27外壳3密封开孔31与电机27输出轴6之间的间隙。
上述设置避免了水汽进入电机27与外筒26之间。
以上所述仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本发明的技术人员在不脱离本发明技术方案范围内，当可利用上述提示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明方案的范围内。

Claims (10)

  1. 一种洗衣机，包括外筒(26)、套设于外筒(26)内部的内筒(25)和设于外筒(26)外部的电机(27)，电机(27)输出轴穿过外筒(26)与内筒(25)相连接，其特征在于，电机(27)外壳与外筒(26)筒底相连接，且电机(27)外壳的两侧分别设有用于支撑电机(27)输出轴的第一轴承(7)和第二轴承(10)。
  2. 根据权利要求1所述的一种洗衣机，电机(27)外壳与外筒(26)筒底相贴合接触；
    优选的，外筒(26)筒底设有凹陷的安装槽(36)，电机(27)沉陷于安装槽(36)内部。
  3. 根据权利要求1或2所述的一种洗衣机，其特征在于，电机(27)外壳经螺栓与外筒(26)筒底相连接；
    优选的，电机(27)的外壳外周经多个螺栓与外筒(26)筒底相连接。
  4. 根据权利要求1-3任一所述的一种洗衣机，电机(27)输出轴经螺栓与内筒(25)相连接；
    优选的，电机(27)输出轴设有径向凸出的连接部(16)，电机(27)输出轴与内筒(25)轴线相重合，连接部(16)穿过外筒(26)与内筒(25)筒底中心外周相对应，并经螺栓相固定连接。
  5. 根据权利要求4所述的一种洗衣机，其特征在于，内筒(25)筒底设有朝外筒(26)轴线延伸的、并设于连接部(16)外部的定位凸(32)，定位凸(32)与连接部(16)相限位抵触。
  6. 根据权利要求4所述的一种洗衣机，其特征在于，外筒(26)筒底上设有供连接部(16)穿过的开孔(31)，连接部(16)穿过开孔(31)后，与电机(27)输出轴相密封连接的电机(27)外壳密封开孔(31)与电机(27)输出轴之间的间隙。
  7. 根据权利要求1-6所述的一种洗衣机，其特征在于，电机(27)的驱动结构夹持于第一轴承(7)和第二轴承(10)之间。
  8. 根据权利要求7所述的一种洗衣机，其特征在于，电机(27)的转子与输出轴相连接的一端设有分别向输出轴的两端延伸的第一支撑部(22)和第二支撑部(23)， 第一支撑部(22)和第二支撑部(23)的端部分别与第一轴承(7)和第二轴承(10)相抵触。
  9. 根据权利要求1-8任一所述的一种洗衣机，其特征在于，电机(27)的输出轴两端的规格不同，规格大的一端穿过第一轴承(7)以实现支撑定位，并穿过电机(27)外壳以设于外壳外部构成轴伸端，规格小的一端为非轴伸端，其穿过第二轴承(10)以实现支撑定位，且经螺栓与第二轴承(10)相限位卡接。
  10. 根据权利要求9所述的一种洗衣机，其特征在于，电机(27)的输出轴非轴伸端设有轴向凹陷的螺孔(14)，其穿过第二轴承(10)与螺栓(13)螺杆相连接，螺栓(13)螺帽径向凸出于输出轴(6)的非轴伸端，并与第二轴承(10)相限位卡接。
PCT/CN2018/111925 2017-10-27 2018-10-25 一种洗衣机 Ceased WO2019080903A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711026909.4 2017-10-27
CN201711026909.4A CN109722839B (zh) 2017-10-27 2017-10-27 一种洗衣机

Publications (1)

Publication Number Publication Date
WO2019080903A1 true WO2019080903A1 (zh) 2019-05-02

Family

ID=66246209

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/111925 Ceased WO2019080903A1 (zh) 2017-10-27 2018-10-25 一种洗衣机

Country Status (2)

Country Link
CN (1) CN109722839B (zh)
WO (1) WO2019080903A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112609394A (zh) * 2020-12-23 2021-04-06 珠海格力电器股份有限公司 一种滚筒洗衣机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6050113A (en) * 1997-06-12 2000-04-18 Bsh Bosch Und Siemens Hausgeraete Gmbh Drive device for a washing machine
CN105088619A (zh) * 2014-04-17 2015-11-25 无锡小天鹅股份有限公司 斜筒式滚筒洗衣机
CN105544139A (zh) * 2014-10-30 2016-05-04 青岛海尔洗衣机有限公司 一种洗涤装置
CN105624965A (zh) * 2014-10-30 2016-06-01 青岛海尔洗衣机有限公司 一种洗涤装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6050113A (en) * 1997-06-12 2000-04-18 Bsh Bosch Und Siemens Hausgeraete Gmbh Drive device for a washing machine
CN105088619A (zh) * 2014-04-17 2015-11-25 无锡小天鹅股份有限公司 斜筒式滚筒洗衣机
CN105544139A (zh) * 2014-10-30 2016-05-04 青岛海尔洗衣机有限公司 一种洗涤装置
CN105624965A (zh) * 2014-10-30 2016-06-01 青岛海尔洗衣机有限公司 一种洗涤装置

Also Published As

Publication number Publication date
CN109722839B (zh) 2021-08-03
CN109722839A (zh) 2019-05-07

Similar Documents

Publication Publication Date Title
JP6571258B2 (ja) 動力源を有する減速機
US11285574B2 (en) Magnetic-hydraulic double-suspension bearing experiment table
WO2023130642A1 (zh) 一种电驱动总成的动力轴结构
WO2016000386A1 (zh) 滚筒洗衣机外筒、滚筒洗衣机及其内外筒组装方法
WO2019080903A1 (zh) 一种洗衣机
CN213661356U (zh) 一种导引头用紧凑型旋转驱动机构
CN109728674B (zh) 一种dd电机及洗衣机
CN208461597U (zh) 轴承座、电动机组件及电动机和变速箱总成
CN213419348U (zh) 两点支撑的立式冷媒泵
CN212627424U (zh) 外转子电机、增氧机
KR20010054186A (ko) 전동모터
CN108518482B (zh) 异形真空槽的旋转密封结构
CN213450827U (zh) 三点支撑的立式冷媒泵
CN108988600B (zh) 一种适用于高精度力矩电机的紧凑结构
CN211921985U (zh) 一种传动结构和洗衣机
CN201383716Y (zh) 马达转子的枢接构造
CN112097498B (zh) 一种脱水螺旋装置
CN216645707U (zh) 轮胎平衡机用机电一体平衡主轴
CN215861661U (zh) 蜗轮蜗杆减速机
CN223270138U (zh) 一种分体式多缸空压机壳体
KR20170025734A (ko) 감속기를 구비한 모터 모듈
CN223771887U (zh) 一种行星减速电机
CN210469018U (zh) 一种电机
CN105509833B (zh) 燃气表轴传动机构
CN216447171U (zh) 一种螺旋离心泵密封结构

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18869875

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18869875

Country of ref document: EP

Kind code of ref document: A1