WO2018177096A1 - 减震***和包括该减震***的洗衣机 - Google Patents

减震***和包括该减震***的洗衣机 Download PDF

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Publication number
WO2018177096A1
WO2018177096A1 PCT/CN2018/078351 CN2018078351W WO2018177096A1 WO 2018177096 A1 WO2018177096 A1 WO 2018177096A1 CN 2018078351 W CN2018078351 W CN 2018078351W WO 2018177096 A1 WO2018177096 A1 WO 2018177096A1
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WIPO (PCT)
Prior art keywords
chamber
plunger
cylinder
shock
inner cavity
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PCT/CN2018/078351
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English (en)
French (fr)
Inventor
赵志强
许升
Original Assignee
青岛海尔滚筒洗衣机有限公司
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Publication of WO2018177096A1 publication Critical patent/WO2018177096A1/zh

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    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
    • F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F16F9/3214—Constructional features of pistons
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/3405—Throttling passages in or on piston body, e.g. slots

Definitions

  • the invention belongs to the technical field of washing machines, and in particular provides a shock absorbing system and a washing machine including the same.
  • the washing tub is usually supported on the washing machine casing by a plurality of shock dampers.
  • the invention patent application with the publication number CN1718902A discloses a "damper for a washing machine".
  • the damper for a washing machine includes a cylinder barrel and a piston rod inserted in the cylinder barrel, and an end of the piston rod is provided with a piston that divides the cylinder tube into an upper chamber of the cylinder tube and Cylinder lower chamber.
  • the piston is further provided with a throttle passage that communicates between the upper chamber of the cylinder and the lower chamber of the cylinder.
  • the volume of the upper chamber of the cylinder and the lower chamber of the cylinder are correspondingly increased or decreased, so that the damper moves over the entire stroke of the plunger
  • the damping force received on it remains substantially unchanged. Therefore, the damper for the washing machine does not enhance the damping force generated by the damper according to the increase in the stroke of the plunger relative to the cylinder, and therefore, the damping effect is poor especially for the more severe vibration.
  • the present invention provides a shock absorbing system including at least two shock absorbers, each of which is damped
  • the chambers each include a lumen filled with a fluid, each of the dampers generating damping damping by the flow of fluid in the lumen, one of the at least two shock absorbers
  • the inner cavity of the damper communicates with the inner cavity of the other damper through the pipeline.
  • each of the shock absorbers includes: a cylinder having a first chamber; and a plunger slidably inserted into the cylinder In the first chamber, a second chamber is disposed in the plunger, the first chamber and the second chamber together constitute the inner cavity; the plunger is provided with an orifice, The first chamber and the second chamber are in communication with each other via the orifice, and the fluid is in the first chamber via the orifice when the plunger slides relative to the cylinder Flowing between the chamber and the second chamber, the conduit being connected to the first chamber or the second chamber of the one shock absorber and the first chamber or the second of the other shock absorber Between the chambers.
  • each of the shock absorbers includes: a cylinder barrel formed in the cylinder barrel; a piston slidably inserted into the cylinder barrel In the inner cavity, the inner cavity is divided into a first chamber and a second chamber; the piston is provided with an orifice, and the first chamber and the second chamber are supported by the orifice Communicating with each other, when the piston slides relative to the cylinder, the fluid flows between the first chamber and the second chamber via the orifice, the pipeline is connected A first chamber or a second chamber of a shock absorber is interposed between the first chamber or the second chamber of the other shock absorber.
  • the outer diameter of the plunger is configured such that the plunger is slidably and intimately engaged with the cylinder.
  • each of the dampers further includes a sealing ring and a first groove for accommodating the sealing ring, the first groove being disposed at the cylinder
  • An inner wall or an outer wall of the plunger enables the plunger to be slidably sealingly engaged with the cylinder.
  • each of the dampers further includes a friction plate and a second groove for accommodating the friction plate, and the second groove is disposed at the cylinder
  • the inner wall or the outer wall of the plunger enables friction damping of the plunger via the friction lining when sliding relative to the cylinder.
  • the end of the plunger of each of the dampers is provided with a partition, and the orifice is provided on the partition.
  • the plunger and the partition are of a unitary structure.
  • the present invention also provides a washing machine comprising a housing and a drum assembly disposed in the housing, wherein the washing machine further comprises a shock absorbing system, the drum assembly being supported by the shock absorbing system
  • the shock absorbing system on the housing is any shock absorbing system according to the present invention.
  • the inner chambers for example, the first chamber or the second chamber
  • the fluid can Flowing between the two shock absorbers makes each shock absorber more uniform, avoiding the drum assembly due to the difference in suspension position, support position, machining accuracy, consistency of the shock absorber processing, and assembly accuracy.
  • the problem of the shock absorption effect caused by the deviation of the center of gravity is uneven.
  • the second chamber since the second chamber is provided in the plunger, the volume of the second chamber remains unchanged during the telescopic movement of the plunger along the cylinder, and when the plunger performs the compression movement, the second chamber
  • the fluid in the chamber will gradually increase, the pressure in the second chamber will gradually increase, and the fluid in the first chamber will need more force to enter the second chamber, so that the damping force generated by the shock absorber is greater;
  • the plug When the plug is in the stretching motion, the fluid in the second chamber enters into the first chamber, and the fluid in the second chamber gradually decreases, so that the negative pressure in the second cavity increases, resulting in the second chamber.
  • the damping force that the fluid enters into the first chamber becomes larger.
  • the shock absorber of the present invention can automatically adjust the fluid damping according to various working conditions of the washing machine, such as the damper under load, especially when the dewatering is high speed at a low speed, with the plunger in the cylinder
  • the stroke is increased to ensure large damping force, enhance shock absorption, and maintain the stability of the washing machine; at low load, the shock absorbing damper is at low damping, especially at the high speed of the spin, with the plunger in the cylinder
  • the stroke is reduced and the damping force is minimized to maintain the stability of the washing machine.
  • the overall structure of the damper is more stable during the sliding of the plunger relative to the inner wall of the cylinder, and is not in the sliding process.
  • the problem of tilting and eccentric grinding of the inner wall of the cylinder occurs, and at the same time, compared with the existing damper for the washing machine, the piston and the plunger rod supporting/guiding mechanism at the end of the cylinder are not required, which simplifies the overall structure and reduces the production. cost.
  • Figure 1 is a schematic view showing the mounting position of the shock absorbing system of the present invention in a washing machine
  • Figure 2 is a cross-sectional view of the shock absorbing system of the present invention.
  • Figure 3 is a cross-sectional view of the shock absorber of the present invention.
  • Figure 4 is a schematic view showing a plunger compression process of the shock absorber of the present invention.
  • Figure 5 is a schematic illustration of the plunger drawing process of the shock absorber of the present invention.
  • the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed connections, for example, or It is a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • Figure 1 is a schematic view of the mounting position of the shock absorbing system of the present invention in a washing machine
  • Figure 2 is a cross-sectional view of the shock absorbing system of the present invention.
  • the shock absorbing system of the present invention comprises a hanging spring 1 and a damper 2, which are provided with two and symmetrically placed on both sides of the upper end of the drum assembly 3, each hanging spring The two ends of 1 are respectively connected to the upper end of the drum assembly 3 and the upper panel 4 for hanging the drum assembly 3; the shock absorber 2 is provided with two and symmetrically placed at the lower end of the drum assembly 3, preferably, minus
  • the shock absorber 2 includes a cylinder 21 having a first chamber 211, a first fixed end 22 fixedly coupled to a first end of the cylinder barrel 21 (a lower end of the cylinder 21 shown in Fig.
  • the first end of the plunger 23 (the upper end of the plunger 23 shown in Fig. 2) is fixedly coupled to the second fixed end 24.
  • the second end of the plunger 23 (the lower end of the plunger 23 shown in Fig. 2) is slidably slidably from the second end of the cylinder 21 (the upper end of the cylinder 21 shown in Fig. 2) Inserted into the first cavity 211 of the cylinder 21, the first fixed end 22 is for connecting the bottom plate 5 of the washing machine, and the second fixed end 24 is for connecting to the lower portion of the drum assembly 3.
  • first fixed end 22 can also be coupled to the lower end of the drum assembly 3, and the second fixed end 24 can be coupled to the bottom plate 5 of the washing machine without departing from the principles and scope of the present invention.
  • the drawings are described with two dampers 2 as a preferred embodiment, it is obvious that those skilled in the art can adjust the number of dampers 2 according to actual conditions.
  • the drum assembly 3 it should be noted that it includes an inner cylinder and an outer cylinder of the washing machine, and the damper 2 directly supports the outer cylinder, but it also carries the weight of the inner cylinder, and thus is used for reducing the inner cylinder. vibration.
  • FIG. 3 is a cross-sectional view of the shock absorber of the present invention.
  • the outer wall of the plunger 23 is slidably and tightly engaged with the inner wall of the cylinder tube 21, and therefore, the overall structure of the damper 2 is more stable, and the plunger 23 is not in the sliding process.
  • the problem of skewing and eccentric grinding of the inner wall of the cylinder 21 occurs.
  • a second chamber 231 is disposed in the plunger 23, and a second end thereof is sealingly provided with a partition plate 26.
  • the partition plate 26 is provided with an orifice 27, and the throttle hole 27 communicates with the first chamber.
  • the first chamber 211 and/or the second chamber 231 are filled with hydraulic oil 30, and when the plunger 23 slides in the first chamber 211 of the cylinder 21, the hydraulic oil 30 can Flows back and forth in the first chamber 211 and the second chamber 231.
  • the partition plate 26 shown in FIG. 2 is a separate member, the partition plate 26 and the plunger 23 may be an integrated structure, that is, a cavity is formed directly inside the plunger 23 as a cavity.
  • the second chamber 231, at the same time, is provided with an orifice 27 at the second end of the plunger 23; in addition, although the drawing is described with the hydraulic oil 30 as a preferred embodiment, it is obvious that other fluids may be substituted. For example silicone oil.
  • the shock absorbing system further includes a conduit 6, preferably two ends of the conduit 6 are connected to the first chamber 211 of each damper 2, respectively.
  • the cylinder tube 21 is further provided with a liquid outlet 61 that communicates with the first chamber 211 and the pipe 6, and is fixed by the clamp 62 on the basis of the connection of the pipe 6 and the liquid outlet 61, thereby making each
  • the hydraulic oil 30 in the damper 2 can flow between the two dampers 2 under the communication of the pipeline 6, so that the damping force generated by each damper 2 is more uniform, and the center of gravity of the drum assembly 3 is solved. The problem of uneven damping effect caused by the deviation. It should be noted that although FIG.
  • first chamber 211 of each damper 2 is connected by a line 6, it is obvious that the line 6 can also be connected as shown in FIG.
  • the second chamber 231 of the damper 2 can also solve the problem of inconsistent shock absorbing effect. It is even possible to connect the first chamber of one damper to the second chamber of the other damper with line 6, without departing from the principles and scope of the invention.
  • one or more first grooves may be circumferentially arranged on the inner wall of the cylinder 21, and the first grooves are placed in the first grooves.
  • the seal ring 28 ensures the seal between the cylinder barrel 21 and the plunger 23 so that the hydraulic oil 30 in the first chamber 211 and the second chamber 231 does not leak.
  • one or more second grooves may be disposed on the outer wall of the plunger in a circumferential direction, and a sealing ring 28 matching the second groove may be placed in the second groove. It can also function as a seal.
  • the sealing ring is a rubber sealing ring or a sealing ring made of other suitable materials.
  • the shock absorber further includes a friction plate 29 and a third recess (not labeled) for placing the friction plate 29.
  • the third recess may be provided on the inner wall of the cylinder 21 or the outer wall of the plunger 23, so that the plunger 23 can generate frictional damping via the friction plate 29 when sliding relative to the cylinder 21, thereby further enhancing the shock absorption. The shock absorption effect of the device.
  • the present invention also provides a washing machine comprising a drum assembly 3 disposed in a housing (not shown in the drawings), the drum assembly 3 being supported on the housing by a damping system, the reduction
  • the seismic system is any shock absorbing system in accordance with the present invention.
  • Fig. 4 is a schematic view showing the compression process of the plunger 23 of the shock absorbing system of the present invention
  • Fig. 5 is a schematic view showing the stretching process of the plunger 23 of the shock absorbing system 2 of the present invention. As shown in FIG. 4, when the plunger 23 is forced to the left (in the direction of FIG.
  • the friction plate 29 rubs against the outer wall of the plunger 23, slowing down the compression force to the left of the plunger 23, and
  • the volume of the first chamber 211 becomes smaller, the fluid in the first chamber 211 is squeezed, and flows through the orifice 27 to the second chamber 231 due to the orifice
  • the size of 27 is small, so that the hydraulic oil 30 exerts a rightward force on the partition 26 when flowing to the second chamber 231, slowing the movement of the plunger 23 to the left, thereby reducing vibration.
  • FIG. 5 when the plunger 23 is forced to the right (in the direction of FIG.
  • the friction plate 29 rubs against the outer wall of the plunger 23, slowing the sliding of the plunger 23 to the right, and, in addition, the column
  • the hydraulic oil 30 in the second chamber 231 will enter the first chamber 211, and the fluid of the second chamber 231 gradually decreases, so that the hydraulic oil 30 in the second chamber 231 Entering into the first chamber 211, the negative pressure in the second chamber 231 is increased due to the constant volume of the second chamber 231, so that the hydraulic oil 30 in the second chamber 231 enters the first chamber.
  • the damping force received by 211 is increased, thereby slowing the movement of the plunger 23 to the right.
  • the shock absorbing system of the present invention includes at least two shock absorbers, each of the shock absorbers comprising: a cylinder barrel, the inner cavity being formed in the cylinder barrel; and the piston Slidably placed in the inner cavity of the cylinder to divide the inner chamber into a first chamber and a second chamber; an orifice is provided on the piston so that the first chamber and the second chamber can
  • the damper system further comprises a pipeline, the pipeline is connected
  • the first chamber or the second chamber of the two shock absorbers is coupled to the first chamber or the second chamber of the other shock absorber.
  • the first chamber or the second chamber of the two shock absorbers and the first chamber or the second chamber of the other shock absorber are also connected by a pipeline, thereby avoiding the The problem of inconsistent damping effect caused by the initial center of gravity deviation.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

一种减震***和包括该减震***的洗衣机。减震***包括至少两个减震器（2），每个减震器（2）都包括内腔（211、231），内腔（211、231）中填充有流体，每个减震器（2）都通过流体在内腔（211、231）中的流动来产生减震阻尼，至少两个减震器（2）中的一个减震器（2）的内腔通过管路（6）与另一个减震器（2）的内腔（211、231）连通，减震器在工作状态下，流体可以通过管路的连通，在两个减震器之间相互流动，实现了每个减震器受力更均匀，解决了由于洗衣桶的初始重心偏差而引起的减震效果不一致的问题。

Description

减震***和包括该减震***的洗衣机 技术领域
本发明属于洗衣机技术领域，具体提供一种减震***和包括该减震***的洗衣机。
背景技术
洗衣机是利用电能来洗涤衣物的清洁型电器，随着生活节奏的加快以及人们对生活舒适度的高要求，洗衣机已经成为人们日常生活中必不可少的家用电器。然而，洗衣机在洗涤、漂洗和脱水过程中会发出很大的振动和噪音，给人们的正常生活带来了不便。
在解决洗衣机工作时振动和噪音过大的问题上，通常通过多个减震阻尼器将洗衣桶支撑在洗衣机外壳上。公开号为CN1718902A的发明专利申请公开了一种“洗衣机用阻尼器”。具体而言，该洗衣机用阻尼器包括缸筒和插设在所述缸筒中的活塞杆，所述活塞杆的端部设置有活塞，所述活塞将所述缸筒划分为缸筒上室和缸筒下室。另外，所述活塞上还设置有连通所述缸筒上室和所述缸筒下室的节流通路。在所述缸筒上室和所述缸筒下室中注入流体，在所述柱塞滑动的过程中，所述流体会通过所述节流通路在所述缸筒上室和缸筒下室之间流动，从而产生流体阻尼，实现减小洗衣机振动的目的。但是，现有技术中各个阻尼器相互独立地起作用，在安装完成后，由于悬挂位置、支撑位置、加工精度、挂簧加工减震阻尼加工一致性的差异以及组装的精度等导致外筒重心有些许差异，使得即使是相同的阻尼器用于同一批次的洗衣机，减震效果也是参差不齐，整体上减震效果差。
此外，当所述柱塞在缸筒内伸缩运动时，所述缸筒上室和所述缸筒下室的体积相应地增大或减小，使所述阻尼器在柱塞的整个运动行程上受到的阻尼力基本保持不变。因此，该洗衣机用阻尼器并不能根据柱塞相对缸筒运动行程的增加而增强所述阻尼器产生的阻尼力，因此，尤其是对于较剧烈的振动，其减震效果差。
相应地，本领域需要一种新型减震***来解决上述问题。
发明内容
为了解决现有技术中的上述问题，即为了解决现有的减震器不能适应洗衣机在安装完成后，由于悬挂位置、支撑位置加工精度、挂簧加工、减震阻尼加工一致性的差异以及组装的精度等导致的外筒重心的差异，导致减震效果参差不齐的问题，本发明提供了一种减震***，所述减震***包括至少两个减震器，每个所述减震器都包括内腔，所述内腔中填充有流体，每个所述减震器都通过流体在所述内腔中的流动来产生减震阻尼，所述至少两个减震器中的一个减震器的内腔通过管路与另一个减震器的内腔连通。
在上述的减震***的优选技术方案中，每个所述减震器都包括：缸筒，所述缸筒具有第一腔室；柱塞，其以可滑动的方式***所述缸筒的第一腔室中，所述柱塞中设置有第二腔室，所述第一腔室和所述第二腔室共同构成所述内腔；所述柱塞上设置有节流孔，所述第一腔室和所述第二腔室借助所述节流孔彼此连通，当所述柱塞相对于所述缸筒滑动时，所述流体经由所述节流孔在所述第一腔室和所述第二腔室之间流动，所述管路连接在所述一个减震器的第一腔室或第二腔室与所述另一个减震器的第一腔室或第二腔室之间。
在上述的减震***的优选技术方案中，每个所述减震器都包括：缸筒，所述内腔形成在所述缸筒中；活塞，其以可滑动的方式***所述缸筒的内腔中，将所述内腔分隔成第一腔室和第二腔室；所述活塞上设置有节流孔，所述第一腔室和所述第二腔室借助所述节流孔彼此连通，当所述活塞相对于所述缸筒滑动时，所述流体经由所述节流孔在所述第一腔室和所述第二腔室之间流动，所述管路连接在所述一个减震器的第一腔室或第二腔室与所述另一个减震器的第一腔室或第二腔室之间。
在上述的减震***的优选技术方案中，所述柱塞的外直径设置成使得所述柱塞能够与所述缸筒可滑动地紧密接合。
在上述的减震***的优选技术方案中，每个所述减震器还包括密封圈和用于容纳所述密封圈的第一凹槽，所述第一凹槽设置在所述缸筒的内壁或所述柱塞的外壁上，使得所述柱塞能够与所述缸筒可滑动地密封接合。
在上述的减震***的优选技术方案中，每个所述减震器还包括摩擦片和用于容纳所述摩擦片的第二凹槽，所述第二凹槽设置在所述缸筒的内壁或所述柱塞的外壁上，使得所述柱塞相对于所述缸筒滑动时能够经由所述摩擦片产生摩擦阻尼。
在上述的减震***的优选技术方案中，每个所述减震器的柱塞的端部设置有隔板，所述节流孔设置在所述隔板上。
在上述的减震***的优选技术方案中，所述柱塞与所述隔板为一体结构。
在上述的减震***的优选技术方案中，所述液体是液压油或者硅油，并且/或者所述管路是橡胶管。
本发明还提供了一种洗衣机，所述洗衣机包括壳体和设置于壳体中的滚筒总成，其特征在于，所述洗衣机还包括减震***，所述滚筒总成通过减震***支撑在所述壳体上，所述减震***是根据本发明所述的任一种减震***。
本领域技术人员能够理解的是，在本发明的优选技术方案中，由于将两个减震器的内腔(例如第一腔室或第二腔室)通过管路彼此连通，因此，流体可以在两个减震器之间相互流动，使每个减震器受力更均匀，避免了由于悬挂位置、支撑位置、加工精度、减震器加工一致性的差异以及组装精度导致的滚筒总成重心偏差而引起的减震效果参差不齐的问题。
进一步地，由于柱塞中设有第二腔室，因此，在柱塞沿缸筒作伸缩运动的过程中，第二腔室的体积保持不变，当柱塞做压缩运动时，第二腔室的流体会逐渐增多，使第二腔室内的压力逐渐增大，第一腔室中的流体进入第二腔室需要更大的力，从而使减震器产生的阻尼力更大；当柱塞做拉伸运动时，第二腔室中的流体会进入到第一腔室中，第二腔室的流体逐渐减少，使得第二空腔中的负压增大，导致第二腔室内的流体进入第一腔室受到的阻尼力变大。因此，本发明的减震器中，随着柱塞在缸筒内的行程增大，其受到的阻尼力也在越来越大，从而进一步增强减震器的减震效果。换句话说，本发明减震器能够根据洗衣机的各种工况自动调整流体阻尼，如阻尼器在负载情况下尤其是在脱水由低速上高速的情况下，随着柱塞在缸筒内的行程增大，保证阻尼力大，增强减震，保持洗衣机的稳定性；在小负载时，减震阻尼器是处于低阻尼，尤 其是在甩干高速时，随着柱塞在缸筒内的行程减小，阻尼力最小，保持洗衣机的稳定性。
进一步地，由于柱塞的外壁整体与缸筒的内壁可滑动地紧密接合，因此，在柱塞相对于缸筒的内壁滑动的过程中，减震器的整体结构更加稳定，不会在滑动过程中发生倾斜和偏磨缸筒内壁的问题，同时，相较于现有的洗衣机用阻尼器，不需要活塞以及缸筒端部的柱塞杆支撑/引导机构，简化了整体结构以及降低了制作成本。
附图说明
图1是本发明的减震***的在洗衣机中的安装位置示意图；
图2是本发明的减震***的剖视图；
图3是本发明的减震器的剖视图；
图4是本发明的减震器的柱塞压缩过程的示意图；
图5是本发明的减震器的柱塞拉伸过程的示意图。
具体实施方式
下面参照附图来描述本发明的优选实施方式。本领域技术人员应当理解的是，这些实施方式仅仅用于解释本发明的技术原理，并非旨在限制本发明的保护范围。例如，尽管说明书中是结合液压油来描述的，但是，本发明显然可以采用其他形式的具有一定粘稠度的液体，只要该液体本身不会对缸筒内壁以及密封垫造成腐蚀；另外，虽然说明书是结合两个减震器来描述的，但是，本发明可以根据实际情况，调整减震器的数量。
需要说明的是，在本发明的描述中，术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
此外，还需要说明的是，在本发明的描述中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机 械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域技术人员而言，可根据具体情况理解上述术语在本发明中的具体含义。
首先参阅图1和图2，图1是本发明的减震***的在洗衣机中的安装位置示意图；图2是本发明的减震***的剖视图。如图1和图2所示，本发明的减震***包括挂簧1和减震器2，挂簧1设置有两个并且对称地放置在滚筒总成3上端的两侧，每个挂簧1的两端分别连接到滚筒总成3的上端和上面板4，用于悬挂滚筒总成3；减震器2设置有两个并且对称地放置在滚筒总成3的下端，优选地，减震器2包括具有第一腔室211的缸筒21、与缸筒21的第一端(图2中所示的缸筒21的下端)固定连接的第一固定端22、柱塞23以及与柱塞23的第一端(图2中所示的柱塞23的上端)固定连接的第二固定端24。在组装好的状态下，柱塞23的第二端(图2中所示的柱塞23的下端)可滑动地从缸筒21的第二端(图2中所示的缸筒21的上端)***到缸筒21的第一空腔211中，第一固定端22用于连接洗衣机的底板5，第二固定端24用于连接到滚筒总成3的下部。当然，可以理解的是，也可以将第一固定端22连接到滚筒总成3的下端，第二固定端24连接到洗衣机的底板5，这种变化并不偏离本发明的原理和范围。另外，虽然附图是以两个减震器2作为优选实施方式进行描述的，但是，很明显的是本领域技术人员可以根据实际情况对减震器2的数量进行调整。关于滚筒总成3，需要说明的是，其包括洗衣机的内筒和外筒，减震器2直接支撑外筒，但其同时也承载内筒的重量，并因此用于削减内筒所产生的振动。
接着参阅图3并继续参阅图2，图3是本发明的减震器的剖视图。如图2和图3所示，优选地，柱塞23的外壁与缸筒21的内壁可滑动地紧密接合，因此，减震器2的整体结构更加稳定，柱塞23不会在滑动过程中发生偏斜和偏磨缸筒21的内壁的问题。如图3所示，柱塞23中设置有第二腔室231并且其第二端密封地设置有隔板26，隔板26上设置有节流孔27，节流孔27连通第一腔室211和第二腔室231，第一腔室211和/或第二腔室231中被注入液压油30，当柱塞23在缸筒21的第一腔室211中滑动时，液压油30能够在第一腔室211和第二腔室231中来回流动。本领域技术人员可以理解的是，尽管图2所示的隔板26是独立构件，但是隔板26与柱塞23也可以是一体化结构，即直接在柱塞23的 内部形成一个空腔作为第二腔室231，同时，在柱塞23的第二端设置节流孔27；另外，虽然附图是以液压油30为优选实施方式进行描述的，但很明显也可以用其他流体替代，例如硅油。
继续参阅图2和图3，所述减震***还包括管路6，优选地，管路6的两端分别连接到每个减震器2的第一腔室211。具体地，缸筒21还设置有连通第一腔室211和管路6的出液口61，并且在管路6和出液口61连接的基础上通过卡箍62进行固定，从而使每个减震器2中的液压油30在管路6的连通下，能够在两个减震器2之间流动，使每个减震器2产生的阻尼力更均匀，解决了滚筒总成3重心偏差导致的减震效果参差不齐的问题。需要指出的是，虽然附图2是以管路6连接每个减震器2的第一腔室211为优选实施方式进行描述的，但是很明显管路6也可以如图1中那样连接每个减震器2的第二腔室231，这同样可以解决减震效果不一致的问题。甚至可以用管路6连接一个减震器的第一腔室与另一个减震器的第二腔室，这都不偏离本发明的原理和范围。
继续参阅图2和图3，可以在缸筒21的内壁上沿圆周方向设置一圈或者多圈第一凹槽(图中未标注)，在第一凹槽中放置与第一凹槽匹配的密封圈28，从而保证缸筒21与柱塞23之间的密封性，使得第一腔室211和第二腔室231中的液压油30不会泄露。另一方面，也可以选择在柱塞外壁上沿圆周方向设置一个或者多个第二凹槽(图中未示出)，在第二凹槽中放置与第二凹槽匹配的密封圈28，同样可以起到密封的作用。具体地，所述密封圈是橡胶密封圈，或者其他合适材料制成的密封圈。
继续参阅图2和图3，所述减震器还包括摩擦片29和用于放置摩擦片29的第三凹槽(图中未标注)。类似地，第三凹槽可以设置在缸筒21的内壁或者柱塞23的外壁上，使柱塞23相对于缸筒21滑动时能够经由摩擦片29产生摩擦阻尼，从而进一步增强所述减震器的减震效果。
重新参照图1，本发明还提供一种洗衣机，其包括设置于壳体(图中未整体示出)中的滚筒总成3，滚筒总成3通过减震***支撑在壳体上，该减震***为根据本发明的任一种减震***。
下面结合图4和图5对本发明的减震***的工作原理做简要说明。图4是本发明的减震***的柱塞23压缩过程的示意图；图5是本 发明的减震***2的柱塞23拉伸过程的示意图。如图4所示，当柱塞23受力向左(按照图4中的方向)滑动时，摩擦片29与柱塞23的外壁摩擦，减缓了柱塞23受到的向左的压缩力，另外，在柱塞23向左滑动的过程中，第一腔室211体积变小，第一腔室211中的流体受到挤压，通过节流孔27向第二腔室231流动，由于节流孔27尺寸很小，因此，液压油30在流向第二腔室231时对隔板26产生向右的作用力，减缓了柱塞23向左的运动，从而减轻了振动。如图5所示，当柱塞23受力向右(按照图5中的方向)滑动时，摩擦片29与柱塞23的外壁摩擦，减缓了柱塞23向右的滑动，另外，在柱塞23向右滑动的过程中，第二腔室231中的液压油30会进入到第一腔室211中，第二腔室231的流体逐渐减少，使得第二腔室231中的液压油30会进入到第一腔室211中，由于第二腔室231的体积不变，导致第二腔室231中的负压增大，使第二腔室231内的液压油30进入第一腔室211受到的阻尼力增大，从而减缓了柱塞23向右的运动。另外，由于柱塞23的外壁与缸筒21的内壁可滑动地紧密接合，因此，减震器2的整体结构更加稳定，避免了现有技术中活塞在滑动过程中发生偏斜和偏磨缸筒21的内壁的问题。
另外，由于通过管路6连接了两个减震器2的第一腔室211，因此，当由于洗衣桶的初始重心偏差而使得作用于两个减震器2上的振动力不一致时，液体30可以在两个减震器2的第一腔室211之间相互流动，从而自动调节两个减震器2的第一腔室211的压力以及柱塞23在第一腔室211中的运动速度和行程，进而使每个减震器2产生的阻尼力更均匀，避免了由于洗衣桶的初始重心偏差而引起的减震效果不一致的问题。
在本发明的另一种未示出的优选实施方式中，本发明的减震***包括至少两个减震器，每个减震器包括：缸筒，内腔形成在缸筒中；活塞，其以可滑动的方式放置在缸筒的内腔中，从而将内腔分割成第一腔室和第二腔室；在活塞上设置有节流孔，以便第一腔室和第二腔室能够借助节流孔彼此连通，当活塞相对于缸筒滑动时，流体经由节流孔在第一腔室和第二腔室之间流动，同样地，减震器***还包括管路，管路连通两个减震器中的第一腔室或第二腔室与另一个减震器的第一腔室或第二腔室。在该实施方式中，同样通过管路连通两个减震器中的第一腔 室或第二腔室与另一个减震器的第一腔室或第二腔室，避免了由于洗衣桶的初始重心偏差而引起的减震效果不一致的问题。
至此，已经结合附图所示的优选实施方式描述了本发明的技术方案，但是，本领域技术人员容易理解的是，本发明的保护范围显然不局限于这些具体实施方式。在不偏离本发明的原理的前提下，本领域技术人员可以对相关技术特征作出等同的更改或替换，这些更改或替换之后的技术方案都将落入本发明的保护范围之内。

Claims (10)

  1. 一种减震***，其特征在于，所述减震***包括至少两个减震器，每个所述减震器都包括内腔，所述内腔中填充有流体，每个所述减震器都通过流体在所述内腔中的流动来产生减震阻尼，
    所述至少两个减震器中的一个减震器的内腔通过管路与另一个减震器的内腔连通。
  2. 根据权利要求1所述的减震***，其特征在于，每个所述减震器都包括：
    缸筒，所述缸筒具有第一腔室；
    柱塞，其以可滑动的方式***所述缸筒的第一腔室中，所述柱塞中设置有第二腔室，所述第一腔室和所述第二腔室共同构成所述内腔；
    所述柱塞上设置有节流孔，所述第一腔室和所述第二腔室借助所述节流孔彼此连通，当所述柱塞相对于所述缸筒滑动时，所述流体经由所述节流孔在所述第一腔室和所述第二腔室之间流动，
    所述管路连接在所述一个减震器的第一腔室或第二腔室与所述另一个减震器的第一腔室或第二腔室之间。
  3. 根据权利要求1所述的减震***，其特征在于，每个所述减震器都包括：
    缸筒，所述内腔形成在所述缸筒中；
    活塞，其以可滑动的方式***所述缸筒的内腔中，将所述内腔分隔成第一腔室和第二腔室；
    所述活塞上设置有节流孔，所述第一腔室和所述第二腔室借助所述节流孔彼此连通，当所述活塞相对于所述缸筒滑动时，所述流体经由所述节流孔在所述第一腔室和所述第二腔室之间流动，
    所述管路连接在所述一个减震器的第一腔室或第二腔室与所述另一个减震器的第一腔室或第二腔室之间。
  4. 根据权利要求2所述的减震***，其特征在于，所述柱塞的外直径设置成使得所述柱塞能够与所述缸筒可滑动地紧密接合。
  5. 根据权利要求4所述的减震***，其特征在于，每个所述减震器还包括密封圈和用于容纳所述密封圈的第一凹槽，所述第一凹槽设置在所述缸筒的内壁或所述柱塞的外壁上，使得所述柱塞能够与所述缸筒可滑动地密封接合。
  6. 根据权利要求1所述的减震***，其特征在于，每个所述减震器还包括摩擦片和用于容纳所述摩擦片的第二凹槽，所述第二凹槽设置在所述缸筒的内壁或所述柱塞的外壁上，使得所述柱塞相对于所述缸筒滑动时能够经由所述摩擦片产生摩擦阻尼。
  7. 根据权利要求1所述的减震***，其特征在于，每个所述减震器的柱塞的端部设置有隔板，所述节流孔设置在所述隔板上。
  8. 根据权利要求7所述的减震***，其特征在于，所述柱塞与所述隔板为一体结构。
  9. 根据权利要求1所述的减震器***，其特征在于，所述液体是液压油或者硅油，并且/或者所述管路是橡胶管。
  10. 一种洗衣机，包括壳体和设置于壳体中的滚筒总成，其特征在于，所述洗衣机还包括减震***，所述滚筒总成通过所述减震***支撑在所述壳体上，所述减震***是权利要求1-9中任一项所述的减震***。
PCT/CN2018/078351 2017-03-27 2018-03-07 减震***和包括该减震***的洗衣机 WO2018177096A1 (zh)

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