WO2017177917A1 - 一种变阻尼电磁吊杆总成及洗衣机 - Google Patents

一种变阻尼电磁吊杆总成及洗衣机 Download PDF

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Publication number
WO2017177917A1
WO2017177917A1 PCT/CN2017/080225 CN2017080225W WO2017177917A1 WO 2017177917 A1 WO2017177917 A1 WO 2017177917A1 CN 2017080225 W CN2017080225 W CN 2017080225W WO 2017177917 A1 WO2017177917 A1 WO 2017177917A1
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Prior art keywords
spring
variable damping
boom
variable
damping
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PCT/CN2017/080225
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English (en)
French (fr)
Inventor
吕艳芬
许升
宋华诚
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青岛海尔洗衣机有限公司
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Publication of WO2017177917A1 publication Critical patent/WO2017177917A1/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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F6/00—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid

Definitions

  • the invention relates to a boom assembly and a washing machine, in particular to a variable damping electromagnetic hanger assembly and a washing machine, belonging to the field of washing machine devices.
  • the washing machine boom assembly mounts the outer cylinder of the washing machine. Since the outer cylinder of the washing machine vibrates during operation and the vibration size, vibration frequency and vibration amplitude change, a boom assembly is needed to change the damping in time to adapt to the change. Effectively slow the vibration of the outer cylinder.
  • the present invention has been made in view of the above.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a variable damping electromagnetic boom assembly and a washing machine capable of changing the damping of the boom assembly to meet the needs.
  • a variable damping electromagnetic hanger assembly comprises a suspension rod and a variable damping device mounted on the suspension rod capable of changing the damping of the suspension rod assembly; the variable damping device is a pair of magnets with opposite polarities, at least one magnet can be along The boom is axially movable.
  • variable damping device can vary the magnitude of the damping of the boom assembly as needed.
  • At least one of the pair of oppositely disposed magnets of the variable damping device is an electromagnet.
  • variable damping device is mounted on the boom, and the variable damping device can elastically deform the spring to change the spring force and thereby change the damping of the boom assembly.
  • variable damper device can change the force of the elastic deformation of the spring as needed.
  • variable damper device is located at the upper end or the lower end of the spring, and at least one of the pair of magnets of the variable damper device having opposite polarities is an electromagnet, and the electromagnet can move along the axial direction of the boom to push the spring downward or upward. Deformation.
  • a pair of oppositely disposed magnets are arranged vertically and vertically along the axial direction of the boom to be divided into an upper magnet and a lower magnet.
  • the magnet is mounted on the upper end of the spring, and an upper fixed seat supports the lower magnet between the top of the spring and the lower magnet.
  • a lower mount support spring is disposed between the bottom of the spring and the bottom of the boom; or the magnet is mounted at the lower end of the spring between the bottom of the spring and the upper magnet
  • the upper fixed seat supports the bottom end of the spring, and the lower fixed seat supports the lower magnet between the lower magnet and the bottom of the boom.
  • a sleeve is further included, the sleeve is slidably sleeved on the boom, the spring is located in the sleeve inner cavity and slidably sleeved on the boom, and the upper end of the spring abuts against the top of the casing inner cavity.
  • a washing machine comprising the variable damping electromagnetic boom assembly of any one of the above, wherein the outer drum of the washing machine is suspended in the outer casing of the washing machine by the variable damping electromagnetic hanger assembly.
  • the present invention has the following advantageous effects compared with the prior art.
  • the invention relates to a variable damping electromagnetic boom assembly and a washing machine, comprising a boom and a variable damping device installed on the boom to change the damping of the boom assembly;
  • the variable damping device is a pair of magnets with opposite polarities, at least A magnet can move axially along the boom.
  • a variable damping electromagnetic boom assembly is installed on the washing machine, and the variable damping device can change the damping of the boom assembly to meet actual needs as needed.
  • the magnets with opposite polarities are separated from each other by the repulsive force of the magnet, and the repulsive force of the magnet can be changed, thereby changing the damping size of the boom assembly, thereby realizing effective damping of the outer cylinder of the washing machine.
  • FIG. 1 is a schematic structural view of a variable damping electromagnetic boom assembly according to a second embodiment of the present invention when the upper and lower electromagnets are attached.
  • Figure 2 is a partial enlarged view of Figure 1.
  • variable damping electromagnetic boom assembly in the second embodiment of the present invention when the upper and lower electromagnets are separated.
  • Fig. 4 is a partially enlarged schematic view of Fig. 3;
  • the invention relates to a variable damping electromagnetic hanger assembly, comprising a suspension rod and a variable damping device mounted on the suspension rod capable of changing the damping of the suspension rod assembly.
  • the variable damping device is a pair of oppositely disposed magnets, and at least one magnet is movable along the axial direction of the boom.
  • variable damping device can vary the amount of damping of the boom assembly as needed.
  • the top of the boom assembly is hung on the outer casing of the washing machine, and the outer cylinder of the washing machine can be movably hung on the boom assembly, and the force of the outer cylinder vibrating is absorbed by the variable damping device to slow the vibration of the outer cylinder.
  • variable damping device can change the damping size according to actual needs, so that the damping of the boom assembly meets the actual needs.
  • the invention relates to a variable damping electromagnetic hanger assembly, comprising a suspension rod and a variable damping device mounted on the suspension rod capable of changing the damping of the suspension rod assembly.
  • variable damping device can vary the amount of damping of the boom assembly as needed.
  • the top of the boom assembly is hung on the outer casing of the washing machine, and the outer cylinder of the washing machine can be movably hung on the boom assembly, and the force of the outer cylinder vibrating is absorbed by the variable damping device to slow the vibration of the outer cylinder.
  • variable damping device can change the damping size according to actual needs, so that the damping of the boom assembly meets the actual needs.
  • the variable damping device is a pair of oppositely disposed magnets, and at least one of the magnets is axially movable along the boom. At least one of the magnets is an electromagnet. For example, one magnet is an electromagnet and the other is a permanent magnet.
  • variable damping device is a pair of electromagnets with opposite polarities.
  • the electromagnet is divided into an upper electromagnet and a lower electromagnet.
  • the electromagnet is annular and is placed on the boom.
  • the electromagnet can be along the boom axis. To the event.
  • the electromagnet is mounted on the boom, and the part connecting the outer cylinder of the washing machine and the boom is pressed on the upper electromagnet.
  • the electromagnet When the electromagnet is energized, the upper and lower electromagnets can be separated due to the force of the same pole repulsive, according to the vibration of the outer cylinder.
  • the electromagnet current is used to control the magnitude of the force of the upper and lower electromagnets, the magnitude of the repulsive force, and the frequency of the force to actually adjust the vibration of the outer cylinder to absorb and slow the vibration of the outer cylinder.
  • variable damping electromagnetic boom assembly of the present invention comprises a boom and a variable damping device mounted on the boom to change the damping of the boom assembly.
  • variable damping device can vary the amount of damping of the boom assembly as needed.
  • the top of the boom assembly is hung on the outer casing of the washing machine, and the outer cylinder of the washing machine can be movably hung on the boom assembly, and the force of the outer cylinder vibrating is absorbed by the variable damping device to slow the vibration of the outer cylinder.
  • variable damping device can change the damping size according to actual needs, so that the damping of the boom assembly meets the actual needs.
  • the damper spring 10 is mounted on the boom 4 and a variable damper device that can elastically deform the damper spring 10 to change the spring force of the damper spring 10 to change the damping of the boom assembly.
  • the force of the variable damping device to elastically deform the damping spring 10 can be changed as needed.
  • the variable damping device is located at the upper or lower end of the damping spring 10.
  • the variable damping device is a pair of electromagnets with opposite polarities.
  • the electromagnet is divided into an upper electromagnet 7 and a lower electromagnet 8.
  • the electromagnet is annular and is placed on the boom 4, and the electromagnet can move axially along the boom 4.
  • the elastic vibration spring 10 is pushed to be elastically deformed downward or upward.
  • variable damper device is located at the lower end of the damper spring 10, and urges the damper spring 10 to elastically deform upward.
  • the electromagnet is mounted on the lower end of the damper spring 10, and between the damper spring 10 and the upper electromagnet 7, an upper fixing base 5 is provided to support the bottom end of the damper spring 10, and between the lower electromagnet 8 and the bottom of the boom 4 is disposed.
  • the lower mount 9 supports the lower electromagnet 8.
  • the upper mount 5 is used for fixing the damper spring 10 to prevent the damper spring 10 from swaying radially during operation.
  • the lower mount 9 is used for fixing the electromagnet to prevent radial shaking of the electromagnet during operation.
  • the upper fixing base 5 is made of a plastic material and functions as a magnetic isolation member.
  • the boom assembly further includes a sleeve 11 slidably sleeved on the boom 4, the damping spring 10 is located in the inner cavity of the sleeve 11 and slidably sleeved on the boom 4 Upper, the upper end of the damping spring 10 abuts against the top of the inner cavity of the casing 11.
  • the part connecting the outer cylinder of the washing machine and the boom is pressed on the top of the casing 11.
  • the electromagnet When the electromagnet is energized, the upper and lower electromagnets can be separated due to the force of the same pole repulsive, and the current is controlled by the electromagnet according to the actual situation of the vibration of the outer cylinder.
  • the force of the upper and lower electromagnets repels the same force, the magnitude of the repulsive force and the frequency of the force, and changes the pitch and stiffness coefficient of the damping spring 10 to actually adjust the vibration of the outer cylinder, absorb and slow the outer cylinder. vibration.
  • the upper electromagnet 7 acts as a piston, pushing the upper fixing base 5 upward to compress the damping spring 10, and reducing the pitch of the damping spring 10.
  • the electromagnet is energized to change, such as when a small current is passed, the upper electromagnet 7 moves downward, the damping spring 10 is partially released, and the pitch becomes large; if the current is large, the upper electromagnet 7 moves upward, and the vibration-damping spring The 10 parts are compressed and the pitch is reduced.
  • the electromagnet is not energized, the upper electromagnet 7 falls back under the force of gravity and the thrust of the damper spring 10 to be attached to the lower electromagnet 8.
  • a pair of magnets are mounted on the upper end of the spring, as well as a pair of oppositely disposed magnets, and at least one of the magnets is axially movable along the boom. At least one of the magnets is an electromagnet. For example, one magnet is an electromagnet and the other is a permanent magnet.
  • An upper mount supports the lower magnet between the top of the spring and the lower magnet, and a lower mount support spring is disposed between the bottom of the spring and the bottom of the boom.
  • the invention relates to a variable damping electromagnetic hanger assembly, comprising a suspension rod and a variable damping device mounted on the suspension rod capable of changing the damping of the suspension rod assembly.
  • the variable damping device can change the damping of the boom assembly to suit actual needs, as needed.
  • the energization of the electromagnet causes the upper and lower electromagnets to separate from each other under the action of the electromagnetic repulsion.
  • the upper electromagnet supports the damper spring to move upward, so that the pitch and stiffness coefficient of the damper spring change, thereby changing the damping of the boom assembly.
  • a washing machine comprising the variable damping electromagnetic boom assembly of the first or second embodiment, wherein the variable damping electromagnetic hanger assembly suspends the outer drum of the washing machine in the outer casing of the washing machine, and the variable damping device can change the total lifting rod as needed
  • the damping is adapted to the actual needs and effectively slows the vibration of the outer cylinder.

Abstract

一种变阻尼电磁吊杆总成及洗衣机，包括吊杆(4)及在吊杆上安装的能改变吊杆总成阻尼的变阻尼装置；变阻尼装置为一对极性相对设置的磁铁，至少一磁铁可沿吊杆轴向活动。在洗衣机上安装有变阻尼电磁吊杆总成，根据需要，变阻尼装置能改变吊杆总成的阻尼以适应实际需要。通过磁铁的斥力的作用下使极性相对的磁铁相互分离，且磁铁的斥力可以改变，从而改变吊杆总成的阻尼大小，实现对洗衣机外筒的有效减振。

Description

一种变阻尼电磁吊杆总成及洗衣机 技术领域
本发明涉及一种吊杆总成及洗衣机，尤其是一种变阻尼电磁吊杆总成及洗衣机，属于洗衣机装置领域。
背景技术
洗衣机吊杆总成挂载洗衣机外筒，由于洗衣机外筒在工作时会振动并且振动大小、振动频率和振动幅度会发生变化，因此需要一种吊杆总成来适时改变阻尼以适应此变化，有效减缓外筒振动。
有鉴于此特提出本发明。
发明内容
本发明要解决的技术问题在于克服现有技术的不足，提供一种变阻尼电磁吊杆总成及洗衣机，能够对吊杆总成的阻尼进行改变，使其适应需要。
为解决上述技术问题，本发明采用技术方案的基本构思是：
一种变阻尼电磁吊杆总成，包括吊杆及在吊杆上安装的能改变吊杆总成阻尼的变阻尼装置；变阻尼装置为一对极性相对设置的磁铁，至少一磁铁可沿吊杆轴向活动。
进一步的，变阻尼装置能使吊杆总成阻尼的大小随需要改变。
进一步的，变阻尼装置的一对极性相对设置的磁铁中至少有一个是电磁铁。
进一步的，在吊杆上安装有弹簧，变阻尼装置能使弹簧弹性变形以改变弹簧弹力进而改变吊杆总成阻尼。
进一步的，变阻尼装置使弹簧弹性变形的力能随需要改变大小。
进一步的，变阻尼装置位于弹簧的上端或下端，变阻尼装置的一对极性相对设置的磁铁中至少有一个是电磁铁，电磁铁可沿吊杆轴向活动，推动弹簧向下或向上弹性变形。
进一步的，在弹簧与电磁铁之间具有隔磁材料。
进一步的，一对极性相对设置的磁铁沿吊杆轴向上下设置分为上磁铁和下磁铁，磁铁安装在弹簧的上端，在弹簧顶部与下磁铁之间设有上固定座支撑下磁铁，在弹簧底部与吊杆底部之间设置有下固定座支撑弹簧；或者磁铁安装在弹簧的下端，在弹簧底部与上磁铁之间设 有上固定座支撑弹簧底端，在下磁铁与吊杆底部之间设置有下固定座支撑下磁铁。
进一步的，还包括套管，套管可滑动地套设在吊杆上，弹簧位于套管内腔中并可滑动地套在吊杆上，弹簧上端抵顶套管内腔顶部。
一种洗衣机，包括上述任一项所述的变阻尼电磁吊杆总成，通过变阻尼电磁吊杆总成将洗衣机外筒悬挂在洗衣机外壳内。
采用上述技术方案后，本发明与现有技术相比具有以下有益效果。
本发明一种变阻尼电磁吊杆总成及洗衣机，包括吊杆及在吊杆上安装的能改变吊杆总成阻尼的变阻尼装置；变阻尼装置为一对极性相对设置的磁铁，至少一磁铁可沿吊杆轴向活动。在洗衣机上安装有变阻尼电磁吊杆总成，根据需要，变阻尼装置能改变吊杆总成的阻尼以适应实际需要。通过磁铁的斥力的作用下使极性相对的磁铁相互分离，且磁铁的斥力可以改变，从而改变吊杆总成的阻尼大小，实现对洗衣机外筒的有效减振。
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。
附图说明
图1是本发明实施例二中变阻尼电磁吊杆总成在上下电磁铁贴合时的结构示意图。
图2是图1的局部放大示意图。
图3是本发明实施例二中变阻尼电磁吊杆总成在上下电磁铁分离时的结构示意图。
图4是图3的局部放大示意图。
1、固定片 2、减振垫 3、吊杆座 4、吊杆 5、上固定座 6、缓冲垫 7、上电磁铁 8、下电磁铁 9、下固定座 10、减振弹簧 11、套管。
具体实施方式
本发明一种变阻尼电磁吊杆总成，包括吊杆及在吊杆上安装的能改变吊杆总成阻尼的变阻尼装置。变阻尼装置为一对极性相对设置的磁铁，至少一磁铁可沿吊杆轴向活动。
变阻尼装置能使吊杆总成阻尼的大小随需要改变。
吊杆总成顶端挂在洗衣机外壳上，洗衣机的外筒可活动地挂在吊杆总成上，通过变阻尼装置对外筒振动时的力进行吸收，减缓外筒振动。
在外筒振动幅度及振动力度大小不同时，变阻尼装置能根据实际的需要改变其阻尼大小，使吊杆总成阻尼的大小满足实际需要。
实施例一
本发明一种变阻尼电磁吊杆总成，包括吊杆及在吊杆上安装的能改变吊杆总成阻尼的变阻尼装置。
变阻尼装置能使吊杆总成阻尼的大小随需要改变。
吊杆总成顶端挂在洗衣机外壳上，洗衣机的外筒可活动地挂在吊杆总成上，通过变阻尼装置对外筒振动时的力进行吸收，减缓外筒振动。
在外筒振动幅度及振动力度大小不同时，变阻尼装置能根据实际的需要改变其阻尼大小，使吊杆总成阻尼的大小满足实际需要。
变阻尼装置为一对极性相对设置的磁铁，且至少一磁铁可沿吊杆轴向活动。其中至少一块磁铁为电磁铁。例如一块磁铁为电磁铁，另一块为永磁体。
在本实施例中，变阻尼装置为一对极性相对设置的电磁铁，电磁铁分为上电磁铁和下电磁铁，电磁铁为环形，套在吊杆上，电磁铁可沿吊杆轴向活动。
电磁铁安装在吊杆上，洗衣机外筒与吊杆连接的部位压在上电磁铁上，电磁铁在通电时，由于同极相斥的作用力可使上下电磁铁分离，根据外筒振动的实际情况，通过电磁铁电流控制上下电磁铁同极相斥的作用力大小、相斥的幅度及作用力的频率，以实际调整外筒振动，吸收、减缓外筒的振动。
实施例二
结合图1-4所示，本发明一种变阻尼电磁吊杆总成，包括吊杆及在吊杆上安装的能改变吊杆总成阻尼的变阻尼装置。
变阻尼装置能使吊杆总成阻尼的大小随需要改变。
吊杆总成顶端挂在洗衣机外壳上，洗衣机的外筒可活动地挂在吊杆总成上，通过变阻尼装置对外筒振动时的力进行吸收，减缓外筒振动。
在外筒振动幅度及振动力度大小不同时，变阻尼装置能根据实际的需要改变其阻尼大小，使吊杆总成阻尼的大小满足实际需要。
在本实施例中，在吊杆4上安装有减振弹簧10及能使减振弹簧10弹性变形以改变减振弹簧10弹力进而改变吊杆总成阻尼的变阻尼装置。变阻尼装置使减振弹簧10弹性变形的力能随需要改变大小。
变阻尼装置位于减振弹簧10的上端或下端。变阻尼装置为一对极性相对设置的电磁铁，电磁铁分为上电磁铁7和下电磁铁8，电磁铁为环形，套在吊杆4上，电磁铁可沿吊杆4轴向活动，推动减振弹簧10向下或向上弹性变形。
为了防止磁力外泄，在减振弹簧与电磁铁之间具有隔磁材料。
在本实施例中，变阻尼装置位于减振弹簧10的下端，推动减振弹簧10向上弹性变形。
电磁铁安装在减振弹簧10的下端，在减振弹簧10与上电磁铁7之间设有上固定座5支撑减振弹簧10底端，在下电磁铁8与吊杆4底部之间设置有下固定座9支撑下电磁铁8。上固定座5用于减振弹簧10的固定，防止在工作时，减振弹簧10径向晃动。下固定座9用于电磁铁的固定，防止在工作时，电磁铁的径向晃动。在本实施例中，上固定座5为塑料材质，起到隔磁件的作用。
在本实施例中，吊杆总成还包括套管11，套管11可滑动地套设在吊杆4上，减振弹簧10位于套管11内腔中并可滑动地套在吊杆4上，减振弹簧10上端抵顶套管11内腔顶部。
洗衣机外筒与吊杆连接的部位压在套管11顶部，电磁铁在通电时，由于同极相斥的作用力可使上下电磁铁分离，根据外筒振动的实际情况，通过电磁铁电流控制上下电磁铁同极相斥的作用力大小、相斥的幅度及作用力的频率，并使得减振弹簧10的节距、刚度系数发生变化，以实际调整外筒振动，吸收、减缓外筒的振动。
在电磁铁电流越大，电磁斥力越大，减振弹簧10的节距越小，减振弹簧10的刚度系数越大。
洗衣机脱水操作时，在振幅较小时，电磁铁通小电流，吊杆总成产生较小的阻尼；在振幅较大时，电磁铁通大电流，吊杆总成产生较大的阻尼。
电磁铁通电时，上电磁铁7起到活塞作用，推动上固定座5向上运动压缩减振弹簧10，减小减振弹簧10的节距。当电磁铁通电改变时，如通小电流时，上电磁铁7向下运动，减振弹簧10部分被释放，节距变大；如通大电流时，上电磁铁7向上运动，减振弹簧10部分被压缩，节距变小。当电磁铁不通电时，上电磁铁7在重力作用和减振弹簧10的推力下回落与下电磁铁8贴合。
在其他实施例中，一对磁铁安装在弹簧的上端，同样，为一对极性相对设置的磁铁，且至少一磁铁可沿吊杆轴向活动。其中至少一块磁铁为电磁铁。例如一块磁铁为电磁铁，另一块为永磁体。在弹簧顶部与下磁铁之间设有上固定座支撑下磁铁，在弹簧底部与吊杆底部之间设置有下固定座支撑弹簧。
本发明一种变阻尼电磁吊杆总成，包括吊杆及在吊杆上安装的能改变吊杆总成阻尼的变阻尼装置。根据需要，变阻尼装置能改变吊杆总成的阻尼以适应实际需要。通过电磁铁的通电使得上下电磁铁在电磁斥力的作用下相互分离，上电磁铁承托减振弹簧向上运动，使得减振弹簧的节距及刚度系数变化，从而改变吊杆总成的阻尼大小，并且通过控制电磁铁的通电电流变化，控制上下电磁铁同极相斥的作用力大小、相斥的幅度及作用力的频率来改变吊杆总成的阻尼大小及其他减振参数，实现对洗衣机外筒的有效减振。
实施例三
一种洗衣机，包括实施例一或二中所述的变阻尼电磁吊杆总成，变阻尼电磁吊杆总成将洗衣机外筒悬挂在洗衣机外壳内，根据需要，变阻尼装置能改变吊杆总成的阻尼以适应实际需要，有效减缓外筒振动。
上述实施例中的实施方案可以进一步组合或者替换，且实施例仅仅是对本发明的优选实施例进行描述，并非对本发明的构思和范围进行限定，在不脱离本发明设计思想的前提下，本领域中专业技术人员对本发明的技术方案作出的各种变化和改进，均属于本发明的保护范围。

Claims (10)

  1. 一种变阻尼电磁吊杆总成，其特征在于：包括吊杆及在吊杆上安装的能改变吊杆总成阻尼的变阻尼装置；
    变阻尼装置为一对极性相对设置的磁铁，至少一磁铁可沿吊杆轴向活动。
  2. 根据权利要求1所述的一种变阻尼电磁吊杆总成，其特征在于：变阻尼装置能使吊杆总成阻尼的大小随需要改变。
  3. 根据权利要求2所述的一种变阻尼电磁吊杆总成，其特征在于：变阻尼装置的一对极性相对设置的磁铁中至少有一个是电磁铁。
  4. 根据权利要求1或2所述的一种变阻尼电磁吊杆总成，其特征在于：在吊杆上安装有弹簧，变阻尼装置能使弹簧弹性变形以改变弹簧弹力进而改变吊杆总成阻尼。
  5. 根据权利要求4所述的一种变阻尼电磁吊杆总成，其特征在于：变阻尼装置使弹簧弹性变形的力能随需要改变大小。
  6. 根据权利要求5所述的一种变阻尼电磁吊杆总成，其特征在于：变阻尼装置位于弹簧的上端或下端，变阻尼装置的一对极性相对设置的磁铁中至少有一个是电磁铁，电磁铁可沿吊杆轴向活动，推动弹簧向下或向上弹性变形。
  7. 根据权利要求6所述的一种变阻尼电磁吊杆总成，其特征在于：在弹簧与电磁铁之间具有隔磁材料。
  8. 根据权利要求6所述的一种变阻尼电磁吊杆总成，其特征在于：一对极性相对设置的磁铁沿吊杆轴向上下设置分为上磁铁和下磁铁，磁铁安装在弹簧的上端，在弹簧顶部与下磁铁之间设有上固定座支撑下磁铁，在弹簧底部与吊杆底部之间设置有下固定座支撑弹簧；或者磁铁安装在弹簧的下端，在弹簧底部与上磁铁之间设有上固定座支撑弹簧底端，在下磁铁与吊杆底部之间设置有下固定座支撑下磁铁。
  9. 根据权利要求8所述的一种变阻尼电磁吊杆总成，其特征在于：还包括套管，套管可滑动地套设在吊杆上，弹簧位于套管内腔中并可滑动地套在吊杆上，弹簧上端抵顶套管内腔顶部。
  10. 一种洗衣机，其特征在于：包括上述权利要求1-9任一项所述的变阻尼电磁吊杆总成，通过变阻尼电磁吊杆总成将洗衣机外筒悬挂在洗衣机外壳内。
PCT/CN2017/080225 2016-04-15 2017-04-12 一种变阻尼电磁吊杆总成及洗衣机 WO2017177917A1 (zh)

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