WO2018086538A1 - 一种内桶底平衡环总成及洗衣机 - Google Patents

一种内桶底平衡环总成及洗衣机 Download PDF

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Publication number
WO2018086538A1
WO2018086538A1 PCT/CN2017/109954 CN2017109954W WO2018086538A1 WO 2018086538 A1 WO2018086538 A1 WO 2018086538A1 CN 2017109954 W CN2017109954 W CN 2017109954W WO 2018086538 A1 WO2018086538 A1 WO 2018086538A1
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WO
WIPO (PCT)
Prior art keywords
balance ring
bottom cover
tub
balance
inner tub
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PCT/CN2017/109954
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English (en)
French (fr)
Inventor
吕艳芬
许升
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青岛海尔洗衣机有限公司
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Publication of WO2018086538A1 publication Critical patent/WO2018086538A1/zh

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    • 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
    • D06F37/265—Counterweights mounted to the tub; Mountings 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
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs

Definitions

  • the invention relates to a laundry dewatering device, in particular to an inner bottom balance ring assembly applied to a washing machine and a washing machine equipped with the inner bottom balance ring assembly.
  • the existing pulsator washing machine mainly comprises: an outer barrel, an inner barrel, a balance ring, a pulsator, an inner barrel bottom and a flange.
  • the inner bottom of the barrel, the bottom cover of the inner barrel, and the flange are collectively referred to as the inner bottom assembly.
  • the balance ring of the existing pulsator washing machine is located at the upper end of the inner barrel, and is detachably connected to the inner barrel by bolts.
  • the inside of the balance ring is filled with salt water for balancing the vibration caused by the unbalanced load of the upper part when the washing machine is dehydrated, and the bottom cover of the inner barrel is set by welding. At the bottom of the inner barrel, it is used to enhance its strength. Since the existing balance ring is generally only disposed at the upper end of the inner tub, during the dehydration process, the bottom of the inner tub cannot realize the function of correcting the deviation, so that the dehydration process is noisy and the running stability is poor.
  • the present invention has been made in view of this.
  • An object of the present invention is to overcome the deficiencies of the prior art and to provide an inner bottom balance ring assembly which can be installed on a washing machine and can improve the balance of the barrel in the initial stage of dehydration of the washing machine.
  • Another object of the present invention is to provide a washing machine equipped with the above inner bottom balance ring assembly to reduce vibration and noise when the washing machine is dehydrated.
  • An inner bottom balance ring assembly includes an inner bottom cover, a flange disposed at the bottom of the inner bottom cover and fixedly coupled to the inner bottom cover, and at least one balance ring between the inner bottom cover and the flange The center of the balance ring is located on the rotation axis of the inner cylinder bottom cover, and the balance ring is filled with the balance medium.
  • the flange is provided with an annular groove structure that cooperates with the balance ring, and the balance ring is disposed in an annular cavity enclosed by the inner bottom cover and the annular groove structure.
  • the balance ring and the inner bottom cover are integrated, and the balance ring is downwardly protruded from the bottom of the inner bottom cover. And a clearance fit with the annular groove structure, the top surface of the balance ring is integrally connected with the lower end surface of the inner tub bottom cover.
  • the balance ring is plural and stacked on the upper and lower sides in the axial direction of the balance ring.
  • the balance ring is plural and arranged side by side along the radial direction of the balance ring.
  • the balance ring is detachably disposed in the annular chamber, and is clamped and fixed in the annular chamber by the inner cylinder bottom cover and the flange.
  • the cross-sectional shape of the annular chamber is matched with the cross-sectional shape of the balance ring, and the top surface of the balance ring is in contact with the lower end surface of the inner tub bottom cover, and the side surface and the bottom surface of the balance ring are in contact with the inner wall of the annular groove structure.
  • the bottom edge of the inner bottom cover is provided with an annular protrusion extending downward, and the top outer edge of the flange is in clearance with the inner wall of the annular protrusion.
  • a washing machine equipped with the above inner bottom balance ring assembly the washing machine further comprising at least an inner tub for accommodating laundry and being rotatable, the inner tub bottom cover fixedly connected to the bottom of the inner tub; the upper end of the inner tub An upper balance ring is also provided, the upper balance ring being coaxially disposed with the balance ring between the inner bottom cover and the flange.
  • the distance from the bottom of the balance ring to the bottom of the outer tub is greater than two-thirds of the distance from the bottom of the inner tub to the bottom of the outer tub.
  • the balance ring of the invention is closer to the center of rotation, so that when the washing machine is dehydrated, the correcting balance medium is located closer to the inner barrel axis, which effectively improves the balance of the barrel in the initial stage of the washing machine dehydration, improves the dewatering capacity of the washing machine, and reduces the washing machine. Vibration and noise, and since the balance ring of the present invention is disposed between the inner bottom cover and the flange, it does not occupy the extra space of the washing machine, so the existing washing machine can be directly modified to improve its correcting ability, and the balance ring is more Close to the bottom of the inner barrel, it can enhance the correcting ability of the bottom of the inner barrel.
  • Figure 1 an exploded view of the inner bottom balance ring assembly of the present invention
  • Figure 2 is a cross-sectional view of the inner bottom balance ring assembly of the first embodiment along the central axis;
  • Figure 3 is a cross-sectional view of the inner tub bottom cover of the second embodiment along the central axis;
  • Figure 4 is a cross-sectional view of the inner tub bottom cover of the third embodiment along the central axis;
  • Figure 5 is a cross-sectional view of the inner bucket bottom balance ring assembly of the fourth embodiment taken along the central axis;
  • Figure 6 is a cross-sectional view of the inner and outer barrel assembly of the washing machine along the central axis
  • outer barrel 2 inner barrel 3, inner bottom cover 4, flange 5, balance ring 6, upper balance ring 7, pulsator 8, annular groove structure 21, inner barrel 22, inner barrel bottom 31, annular convex 32, ribs.
  • an inner bottom balance ring assembly includes an inner bottom cover 3, a flange 4 and at least one balance ring 5, and the inner bottom cover 3 is generally installed at the bottom of the inner tub of the washing machine.
  • the flange 4 is disposed at the bottom of the inner tub bottom cover 3 and is fixedly connected to the inner tub bottom cover 3.
  • the balance ring 5 is disposed between the inner tub bottom cover 3 and the flange 4, and the center of the balance ring 5 is located at the inner tub bottom cover 3
  • the balance ring 5 is filled with a balance medium, such as a liquid balance ring that can be filled with liquid, or a ball-type balance ring can be added by adding balls and silicone oil.
  • a balance medium such as a liquid balance ring that can be filled with liquid, or a ball-type balance ring can be added by adding balls and silicone oil.
  • the flange 4 is provided with an annular groove structure 8 that cooperates with the balance ring 5, and the balance ring 5 is disposed in an annular chamber surrounded by the inner bottom cover 3 and the annular groove structure 8.
  • This arrangement makes the balance ring 5 make full use of the space between the inner tub bottom cover 3 and the flange 4, and has a high structural strength and is not easily damaged.
  • the balance ring 5 and the inner tub bottom cover 3 are integrated, and the balance ring 5 is downwardly protruded from the bottom of the inner tub bottom cover 3, and is matched with the annular groove structure 8, and the top surface of the balance ring 5 is The lower end surface of the inner tub bottom cover 3 is integrally connected.
  • the balance ring 5 may be composed of an upper ring body and two lower ring bodies which are directly taken out from the inner bottom cover 3, and the lower ring body is separately manufactured and melted.
  • the application is coupled to the upper ring to form a complete annular chamber forming the balance ring 5.
  • the bottom edge of the inner tub bottom cover 3 is provided with an annular protrusion 31 extending downward, and the top outer edge of the flange 4 is clearance-fitted with the inner wall of the annular protrusion 31, and the annular protrusion 31 functions.
  • the function of the positioning flange 4 ensures that the flange 4 and the inner tub bottom cover 3 are concentrically arranged.
  • a plurality of reinforcing ribs 32 are further disposed on the inner side of the upper end edge of the inner tub bottom cover 3 .
  • the balance ring 5 in the embodiment is plural and stacked on the upper and lower sides in the axial direction of the balance ring 5 .
  • the inner cavity of the balance ring 5 can be divided into a plurality of independent chambers by providing a partition layer in the balance ring 5, or a plurality of balance rings 5 having the same diameter can be welded together to achieve the same. effect.
  • the difference between the embodiment and the second embodiment is that the plurality of balance rings 5 are arranged side by side along the radial direction of the balance ring 5 , and the arrangement mode occupies a small space, and does not affect between the inner and outer barrels.
  • a safety clearance in particular, a partition layer may be provided in the balance ring 5 to divide the inner cavity of the balance ring 5 into a plurality of independent chambers, or a plurality of balance rings 5 having different diameters may be welded together. To achieve the same effect.
  • the balance ring 5 of the embodiment is a separate component, and the balance ring 5 is detachably disposed in the annular cavity, and is clamped and fixed to the ring by the inner cylinder bottom cover and the flange 4.
  • the balance ring 5 is first placed in the annular groove structure of the flange 4, and then the balance ring 5 is clamped between the flange 4 and the inner bottom cover 3, and then bolted
  • the blue plate 4 is fixed to the inner bottom cover 3 of the inner tub.
  • the balance ring 5 of the present embodiment is flexible in installation, and can be flexibly matched with different balance rings 5 according to different volumes.
  • FIG. 6 a washing machine equipped with the inner bottom balance ring assembly of any of the above embodiments, the other structure of the washing machine is the same as that of the existing washing machine, and therefore will not be described in detail, and only surrounds the improved part of the present invention.
  • the washing machine of the present invention further includes an outer tub 1, an inner tub 2 disposed in the outer tub 1 for accommodating laundry and rotatable, and a pulsator 7 disposed at the bottom of the inner cavity of the inner tub 2, the pulsator 7 and the inner tub 2 are generally connected to the motor through a clutch, and the two functions of washing and dehydrating are realized by the action of the clutch;
  • the inner tub 2 includes an inner tub body 21 and an inner tub bottom 22, and a dewatering hole is provided in the circumferential direction of the inner tub body 21.
  • the inner tub bottom cover 3 is fixedly coupled to the bottom of the inner tub bottom 22 and is adapted to the shape of the inner tub bottom 22 to enhance the strength of the inner tub bottom 22.
  • the screws can be screwed to the inner tub bottom 22 by passing the screws from the side of the flange 4 through the flange 4 and the inner tub bottom cover 3, and the three are simultaneously fixed.
  • the distance from the bottom of the balance ring 5 to the bottom of the outer tub is greater than two thirds of the distance from the bottom of the inner tub to the bottom of the outer tub.
  • the upper end of the inner tub 2 is further provided with an upper balance ring 6 disposed coaxially with the balance ring 5 between the inner tub bottom cover 3 and the flange 4 .
  • the two sets of balance rings cooperate with each other to effectively improve the inner barrel of the washing machine. The correcting ability makes the dehydration process more stable and the noise is lower.

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

Abstract

一种内桶底平衡环总成及洗衣机，其中，内桶底平衡环总成包括，内桶底盖（3），设置在内桶底盖（3）底部并与内桶底盖（3）固定连接的法兰盘（4），在所述内桶底盖（3）与法兰盘（4）之间至少设有一平衡环（5），所述平衡环（5）的中心位于内桶底盖（3）的旋转轴线上，在平衡环（5）内填充有平衡介质；洗衣机还包括，内桶（2），所述内桶底盖（3）固定连接在内桶（2）的底部；所述内桶（2）的上端还设有一上平衡环（6），所述上平衡环（6）与位于内桶底盖（3）与法兰盘（4）之间的平衡环（5）同轴设置。平衡环（5）更靠近旋转中心，使得洗衣机脱水启动时，纠偏的平衡介质处于较靠近内桶（2）轴心处，有效提高了洗衣机脱水初期内桶（2）平衡性，降低了洗衣机的振动及噪音。

Description

一种内桶底平衡环总成及洗衣机 技术领域
本发明涉及洗衣脱水设备，尤其是一种应用在洗衣机上的内桶底平衡环总成及配置有该内桶底平衡环总成的洗衣机。
背景技术
现有的波轮洗衣机主要包括：外桶、内桶、平衡环、波轮、内桶底及法兰盘。其中内桶底，内桶底盖，法兰盘又统称为内桶底总成。现有的波轮洗衣机的平衡环位于内桶的上端，通过螺栓与内桶可拆卸连接，平衡环内部充满盐水用于平衡洗衣机脱水时上部不平衡载荷引起的振动，内桶底盖通过熔敷的方式设置在内桶的底部，用来增强其强度。由于现有的平衡环一般只设置在内桶的上端，在脱水程序时，内桶底部无法实现纠偏的功能，使得脱水过程噪音大，运行平稳性较差。
鉴于此提出本发明。
发明内容
本发明的一个目的在于克服现有技术的不足，提供一种可安装在洗衣机上，能够提高洗衣机脱水初期内桶平衡性的内桶底平衡环总成。
本发明的另一个目的在于，提供一种配置有上述内桶底平衡环总成的洗衣机，以降低洗衣机脱水时的振动及噪音。
为了实现第一发明目的，本发明采用如下技术方案：
一种内桶底平衡环总成，包括，内桶底盖，设置在内桶底盖底部并与内桶底盖固定连接的法兰盘，在所述内桶底盖与法兰盘之间至少设有一平衡环，所述平衡环的中心位于内筒底盖的旋转轴线上，在平衡环内填充有平衡介质。
进一步，所述法兰盘上设有与平衡环配合的环形凹槽结构，所述平衡环设置在内桶底盖与环形凹槽结构共同围成的环形腔室内。
进一步，所述平衡环与内桶底盖为一体结构，平衡环由内桶底盖的底部向下凸起， 且与环形凹槽结构为间隙配合，平衡环的顶面与内桶底盖的下端面连接为一体。
进一步，所述平衡环为多个，并沿着平衡环的轴向上下堆叠设置。
进一步，所述平衡环为多个，并沿着平衡环的径向左右并排设置。
进一步，所述平衡环可拆卸的设置在环形腔室内，并由内筒底盖与法兰盘夹紧固定在该环形腔室内。
进一步，所述环形腔室的截面形状与平衡环的截面形状相匹配，平衡环的顶面与内桶底盖的下端面接触，平衡环的侧面和底面与环形凹槽结构的内壁接触。
进一步，所述内桶底盖的底面边缘设有向下延伸出的环形凸起，所述法兰盘的顶部外缘与环形凸起的内壁间隙配合。
为了实现第二发明目的，本发明采用如下技术方案：
一种配置有上述内桶底平衡环总成的洗衣机，所述洗衣机至少还包括，用于容装洗涤物且可旋转的内桶，所述内桶底盖固定连接在内桶的底部；所述内桶的上端还设有一上平衡环，所述上平衡环与位于内桶底盖与法兰盘之间的平衡环同轴设置。
进一步，所述平衡环的底部到外桶底部的距离大于内桶底部到该外桶底部距离的三分之二。
采用本发明所述的技术方案后，带来以下有益效果：
本发明的平衡环更靠近旋转中心，使得洗衣机脱水启动时，纠偏的平衡介质处于较靠近内桶轴心处，有效提高了洗衣机脱水初期内桶平衡性，提高了洗衣机的脱水承载能力，降低了洗衣机的振动及噪音，并且由于本发明的平衡环设置在内桶底盖与法兰盘之间，不占用额外的洗衣机内部空间，因此可以直接对现有洗衣机进行改装，提高其纠偏能力，该平衡环更加靠近内桶底部，能够增强内桶底部的纠偏能力。
附图说明
图1：本发明的内桶底平衡环总成的爆炸图；
图2：实施例一中的内桶底平衡环总成沿中心轴的剖视图；
图3：实施例二中的内桶底盖沿中心轴的剖视图；
图4：实施例三中的内桶底盖沿中心轴的剖视图；
图5：实施例四中的内桶底平衡环总成拆解后的沿中心轴的剖视图；
图6：为洗衣机内外桶总成的沿中心轴的剖视图
其中：1、外桶 2、内桶 3、内桶底盖 4、法兰盘 5、平衡环 6、上平衡环 7、波轮 8、环形凹槽结构 21、内桶体 22、内桶底 31、环形凸起 32、加强筋。
具体实施方式
下面结合附图对本发明的具体实施方式作进一步详细的描述。
实施例一
结合图1和图2所示，一种内桶底平衡环总成，包括，内桶底盖3、法兰盘4和至少一平衡环5，所述内桶底盖3一般安装在洗衣机内桶底部，所述法兰盘4设置在内桶底盖3底部并与内桶底盖3固定连接，所述平衡环5设置在内桶底盖3与法兰盘4之间，平衡环5的中心位于内桶底盖3的旋转轴线上，在平衡环5内填充有平衡介质，如可以填充液体形成液体平衡环，也可以添加滚珠和硅油形成滚珠式平衡环，当平衡环5高速旋转时，平衡介质随着平衡环5高速旋转产生一定的离心力，可用于抵消由重力不平衡所引起的内桶振动。
优选地，所述法兰盘4上设有与平衡环5配合的环形凹槽结构8，所述平衡环5设置在内桶底盖3与环形凹槽结构8共同围成的环形腔室内。这种设置方式使得平衡环5充分利用了内桶底盖3与法兰盘4之间的空间，并且具有较高的结构强度，不易被损坏。
具体地，所述平衡环5与内桶底盖3为一体结构，平衡环5由内桶底盖3的底部向下凸起，且与环形凹槽结构8为间隙配合，平衡环5的顶面与内桶底盖3的下端面连接为一体。在加工制造时，所述平衡环5可以由上环体和下环体构成，上环体为直接由内桶底盖3上引出的两道环形壁，所述下环体单独制造，并通过熔敷方式与上环体连接形成一完整的环形腔室，形成所述平衡环5。
优选的，所述内桶底盖3的底面边缘设有向下延伸出的环形凸起31，所述法兰盘4的顶部外缘与环形凸起31的内壁间隙配合，环形凸起31起到了定位法兰盘4的作用，保证法兰盘4与内桶底盖3同心设置。
优选的，所述内桶底盖3的上端边缘内侧还设有多个加强筋32。
实施例二
如图3所示，为提高平衡环5的平衡效果，本实施例中的所述平衡环5为多个，并沿着平衡环5的轴向上下堆叠设置。具体地，可以通过在平衡环5内设置隔断层，将平衡环5的内腔分隔为多个独立的腔室，也可以将多个直径相同的平衡环5熔敷在一起，以达到相同的效果。
实施例三
如图4所示，本实施例与实施例二的区别在于所述的多个平衡环5沿着平衡环5的径向左右并排设置，这种设置方式占用空间小，不影响内外桶之间的安全间隙，具体地，可以通过在平衡环5内设置隔断层，将平衡环5的内腔分隔为多个独立的腔室，也可以将多个直径不同的平衡环5熔敷在一起，以达到相同的效果。
实施例四
如图5所示，本实施例的所述平衡环5为一单独的部件，平衡环5可拆卸的设置在环形腔室内，并由内筒底盖与法兰盘4夹紧固定在该环形腔室内，在安装时，先将平衡环5放置在法兰盘4的环形凹槽结构内，然后将平衡环5夹持在法兰盘4和内桶底盖3之间，再用螺栓将法兰盘4固定在内桶底盖3上。本实施例的平衡环5安装灵活，能够根据不同的容积，灵活搭配不同的平衡环5。
结合图6所示，一种配置有上述任一实施例中的内桶底平衡环总成的洗衣机，该洗衣机的其他结构与现有洗衣机相同，故不再详细描述，仅围绕本发明的改进部分展开详细描述，本发明的洗衣机还包括，外桶1、设置在外桶1内，用于容装洗涤物且可旋转的内桶2，设置在内桶2内腔底部的波轮7，所述波轮7和内桶2一般通过离合器与电机连接，通过离合器的动作，实现洗衣和脱水两种功能；所述内桶2包括内桶体21和内桶底22，在内桶体21的圆周方向上设有脱水孔，所述内桶底盖3固定连接在内桶底22的底部，并与内桶底22的形状相适应，起到增强内桶底22强度的作用。
具体地，在安装时，可通过将螺钉从法兰盘4一侧穿过法兰盘4和内桶底盖3，旋拧至内桶底22上，将三者同时固定。
优选地，为保证内外桶之间的安全间隙，所述平衡环5的底部到外桶底部的距离大于内桶底部到该外桶底部距离的三分之二。
优选的，所述内桶2的上端还设有一上平衡环6，所述上平衡环6与位于内桶底盖3与法兰盘4之间的平衡环5同轴设置。两组平衡环相互配合，有效提高了洗衣机内桶 的纠偏能力，使得脱水过程更加稳定，噪音更低。
以上所述为本发明的实施方式，应当指出，对于本领域的普通技术人员而言，在不脱离本发明原理前提下，还可以做出多种变形和改进，这也应该视为本发明的保护范围。

Claims (10)

  1. 一种内桶底平衡环总成，包括，内桶底盖，设置在内桶底盖底部并与内桶底盖固定连接的法兰盘，其特征在于：在所述内桶底盖与法兰盘之间至少设有一平衡环，所述平衡环的中心位于内筒底盖的旋转轴线上，在平衡环内填充有平衡介质。
  2. 根据权利要求1所述的一种内桶底平衡环总成，其特征在于：所述法兰盘上设有与平衡环配合的环形凹槽结构，所述平衡环设置在内桶底盖与环形凹槽结构共同围成的环形腔室内。
  3. 根据权利要求2所述的一种内桶底平衡环总成，其特征在于：所述平衡环与内桶底盖为一体结构，平衡环由内桶底盖的底部向下凸起，且与环形凹槽结构为间隙配合，平衡环的顶面与内桶底盖的下端面连接为一体。
  4. 根据权利要求3所述的一种内桶底平衡环总成，其特征在于：所述平衡环为多个，并沿着平衡环的轴向上下堆叠设置。
  5. 根据权利要求3所述的一种内桶底平衡环总成，其特征在于：所述平衡环为多个，并沿着平衡环的径向左右并排设置。
  6. 根据权利要求2所述的一种内桶底平衡环总成，其特征在于：所述平衡环可拆卸的设置在环形腔室内，并由内筒底盖与法兰盘夹紧固定在该环形腔室内。
  7. 根据权利要求6所述的一种内桶底平衡环总成，其特征在于：所述环形腔室的截面形状与平衡环的截面形状相匹配，平衡环的顶面与内桶底盖的下端面接触，平衡环的侧面和底面与环形凹槽结构的内壁接触。
  8. 根据权利要求1所述的一种内桶底平衡环总成，其特征在于：所述内桶底盖的底面边缘设有向下延伸出的环形凸起，所述法兰盘的顶部外缘与环形凸起的内壁间隙配合。
  9. 一种配置有如权利要求1-8任一项所述的内桶底平衡环总成的洗衣机，所述洗衣机至少还包括，用于容装洗涤物且可旋转的内桶，所述内桶底盖固定连接在内桶的底部；所述内桶的上端还设有一上平衡环，所述上平衡环与位于内桶底盖与法兰盘之间的平衡环同轴设置。
  10. 根据权利要求9所述的一种内桶底平衡环总成，其特征在于：所述平衡环的底 部到外桶底部的距离大于内桶底部到该外桶底部距离的三分之二。
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