A laundry treating apparatus
By using a multi-stage buffer and vibration reduction arc beam structure in the washing machine, the problem of inner drum vibration causing cabinet vibration and noise is solved, resulting in smaller drum component vibration and lower noise generation, thus improving the stability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-26
- Publication Date
- 2026-03-31
AI Technical Summary
The vibration of the washing machine drum during high-speed spin-drying will cause the machine body to vibrate and generate noise.
Multiple arc-shaped beams are used as vibration damping components. The height of the arc-shaped beams increases sequentially from high to low, and the stiffness decreases sequentially. Vibration energy is absorbed through multi-stage buffering and end movement, and the vibration direction is precisely matched by guide grooves and slider structures.
It effectively suppresses cylinder assembly vibration, reduces housing vibration and noise, improves equipment operation stability and safety, and extends equipment life.
Smart Images

Figure CN121381328B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of household appliances, and more particularly to a garment processing device. Background Technology
[0002] With the continuous improvement of people's living standards and the increasing demand for automation of housework, washing machines, as a core clothing processing device, have been widely used in various scenarios, greatly reducing people's burden of washing clothes. In the washing machine's workflow, the spin-drying stage is a crucial step. It mainly relies on the centrifugal force generated by the high-speed rotation of the inner drum to separate the water adsorbed in the clothes, thereby shortening the subsequent drying or tumble drying time and improving the user experience.
[0003] In related technologies, when the inner drum rotates at high speed to spin-dry, the entire drum assembly will vibrate due to centrifugal force. However, excessive vibration will cause the washing machine body to vibrate and generate noise. Summary of the Invention
[0004] In view of the above-mentioned shortcomings in the related technologies, this application provides a garment processing device to solve the problem that excessive vibration of the tubular assembly in the related technologies will cause the box to vibrate and generate noise.
[0005] To address the aforementioned technical problems, in a first aspect, this application provides a garment processing device, which includes:
[0006] A housing, the interior of which forms an installation space, and the housing includes a base;
[0007] A tubular assembly is disposed within the installation space and located above the base. The tubular assembly includes a rotatably disposed inner tub, and a garment processing chamber is formed inside the inner tub.
[0008] A vibration damping assembly is disposed between the base and the cylinder assembly, the vibration damping assembly comprising:
[0009] The system includes multiple arc-shaped beams arranged side-by-side and spaced apart. Each arc-shaped beam protrudes towards the cylindrical assembly, and is configured to reduce its protrusion height under pressure from the cylindrical assembly when supporting it. The protrusion heights of the multiple arc-shaped beams are all different, and the stiffness of the multiple arc-shaped beams increases sequentially from high to low protrusion height. The ends of each arc-shaped beam are movably mounted on the base.
[0010] The plurality of the arc-shaped beams are configured such that, when the inner cylinder is stationary, the top of at least one of the arc-shaped beams is in support contact with the cylinder assembly; when the inner cylinder rotates relative to the box body, the plurality of arc-shaped beams sequentially contact the cylinder assembly in order of increasing height.
[0011] With this configuration, since the curved beams all bulge towards the cylindrical assembly above them, the cylindrical assembly exerts force on the top of the curved beams, thus creating a stress point at the top. Furthermore, since the ends of the curved beams are located on the base, they also have support points that support the beam's structure. The vertical distance between the stress point and the support point constitutes the lever arm length of the curved beam under stress. The lower the protrusion height, the shorter the lever arm. Because a shorter lever arm means the curved beam is less prone to deformation under the same external force, its stiffness is greater. Therefore, the stiffness of multiple curved beams increases sequentially from highest to lowest protrusion height.
[0012] When the inner cylinder is stationary, the cylinder assembly is also stationary, and because the top of at least one arc-shaped beam is in contact with the cylinder assembly support, the stable support of the stationary cylinder assembly can be ensured by the support of at least one arc-shaped beam.
[0013] When the inner cylinder rotates, causing the cylinder assembly to vibrate, multiple arc-shaped beams will sequentially contact the cylinder assembly support in order of decreasing protrusion height, or in order of increasing stiffness, or in order of increasing deformation difficulty. Therefore, through the sequential deformation of the multiple arc-shaped beams that contact the cylinder assembly support, the vibration of the cylinder assembly can be buffered and reduced in stages, i.e., multi-stage buffering and vibration reduction can be achieved. At the same time, as the arc-shaped beams deform, their ends will move on the base. Therefore, the movement of the arc-shaped beam ends can provide room for the arc-shaped beams to deform under the pressure of the cylinder assembly and reduce the protrusion height, avoiding the limitation of deformation due to fixed ends, which would affect the vibration reduction effect. It can also disperse vibration energy, and together with the deformation buffer of the arc-shaped beams themselves, it can more efficiently absorb the vibration energy of the cylinder assembly.
[0014] As can be seen from the above description, this application can effectively suppress the vibration of the cylinder assembly by using multi-stage buffering and vibration reduction of multiple arc beams and the movement of the ends. Compared with the telescopic vibration damper in the related technology, it can reduce the vibration of the cylinder assembly, thereby helping to avoid excessive vibration of the cylinder assembly from causing the box to vibrate and thus helping to avoid noise generation.
[0015] In addition, since the curved beam with low stiffness is easy to deform, this application can effectively buffer and reduce vibration of the cylinder assembly by using the curved beam with low stiffness. At the same time, since the curved beam with high stiffness is not easy to deform, this application can also effectively support the cylinder assembly by using the curved beam with high stiffness.
[0016] Optionally, the two ends of the arc-shaped beam are arranged sequentially along a first direction, and at least one end of the arc-shaped beam is movably disposed on the base along the first direction, the first direction being parallel to the extension direction of the central axis of the inner cylinder.
[0017] This configuration, because the cylinder assembly experiences both radial and axial vibrations of the inner cylinder, aligns the first direction parallel to the extension direction of the inner cylinder's central axis. This allows the movement of the curved beam end to precisely match the cylinder assembly's vibration trend along that direction. This not only buffers and reduces the radial vibration of the inner cylinder through the deformation of the curved beam but also buffers and reduces the axial vibration through the movement of the curved beam end. This further buffers and reduces the vibration of the cylinder assembly, thus helping to prevent excessive vibration of the cylinder assembly from causing vibration of the housing and further reducing noise generation.
[0018] Optionally, the base is provided with a plurality of guide grooves, the length direction of the plurality of guide grooves all extending along the first direction, and the plurality of guide grooves are provided in a one-to-one correspondence with the plurality of arc-shaped beams;
[0019] At least one end of the arc-shaped beam is provided with a slider, which is slidably disposed in the guide groove corresponding to the arc-shaped beam along the first direction, so that at least one end of the arc-shaped beam is movably disposed on the base along the first direction.
[0020] This configuration serves several purposes. Firstly, the guide groove provides precise sliding trajectory constraints for the slider to slide along the first direction. Therefore, through the guide groove and the slider's guidance along the first direction, it ensures that the end of the arc beam always moves stably along the extension direction parallel to the central axis of the inner cylinder. This avoids displacement that could lead to misalignment of the vibration damping direction and ensures targeted buffering and vibration damping of the cylinder assembly along the first direction.
[0021] On the other hand, the friction between the slider and the guide groove can convert some of the vibration kinetic energy into heat energy and dissipate, thus enhancing the vibration reduction effect.
[0022] Optionally, the slider is an elastic slider.
[0023] This design, through the elastic deformation of the elastic slider, firstly, can further absorb the vibration energy transmitted by the cylinder assembly, further buffer and reduce vibration, and thus further enhance the vibration reduction effect; secondly, it can alleviate the rigid friction between the slider and the guide groove, reduce abnormal noise generated during sliding, and reduce overall noise; finally, it can also adapt to the slight offset during sliding, avoid jamming, and ensure the smooth movement of the end of the curved beam.
[0024] Optionally, among the plurality of arc-shaped beams, a limiting block is provided in the guide groove corresponding to the arc-shaped beam with the lowest protrusion height. The limiting block is provided on at least one side of the arc-shaped beam in the first direction, and the limiting block is configured to cooperate with the slider for limiting before the deformation of the arc-shaped beam exceeds the deformation limit.
[0025] With this configuration, since the arc-shaped beam with the lowest protrusion height is the last to contact the cylindrical assembly support, the limiting block, in conjunction with the slider at the end of this arc-shaped beam, not only limits the maximum deformation of this beam but also, to some extent, limits the maximum deformation of the other arc-shaped beams. This not only prevents damage to the arc-shaped beams due to excessive deformation, thus ensuring the integrity of the vibration damping component's function, but also prevents the arc-shaped beams from hitting the bottom, causing vibrations to be directly transmitted to the base and housing, ensuring uninterrupted vibration damping.
[0026] Optionally, the width of the guide groove opening is smaller than the width of the guide groove bottom, and the cross-sectional shape of the guide groove bottom is an arc shape;
[0027] The shape of the slider is adapted to the cross-sectional shape of the guide groove.
[0028] This design, on the one hand, allows the narrow groove opening and wide groove bottom to limit the slider, preventing the slider from coming out of the guide groove and ensuring the stability of the sliding fit between the slider and the guide groove. This, in turn, further ensures targeted buffering and vibration reduction of the cylinder assembly along the first direction.
[0029] On the other hand, the arc-shaped groove bottom and the matching slider can increase the contact area between the slider and the guide groove, thereby dispersing the local pressure during the sliding process, reducing stress concentration, and making the slider slide more smoothly, reducing motion resistance and friction wear, so that the end movement of the arc beam can respond to vibration in a timely manner, achieving efficient vibration reduction.
[0030] Optionally, the cylinder assembly further includes a mounting plate and a limiting rod disposed on the mounting plate, the limiting rod extending axially along a second direction;
[0031] The arc-shaped beam protrudes along the second direction, and at least one of the arc-shaped beams has a limiting hole at its top for the insertion of the limiting rod. The limiting hole is configured to engage with the limiting rod at its upper radial limit when the arc-shaped beam deforms along the second direction.
[0032] With this configuration, the deformation trajectory of the arc beam along the second direction can be constrained by the limiting rod and the limiting hole, preventing the arc beam from shifting or misaligning, ensuring that the arc beam always deforms along the second direction, and thus ensuring that the arc beam can effectively buffer and reduce the vibration of the cylinder assembly along the second direction.
[0033] Optionally, the extension direction of the central axis of the inner cylinder is horizontal, and the horizontal direction perpendicular to the central axis of the inner cylinder is a third direction;
[0034] In the third direction, the vibration damping components are provided on both sides of the central axis of the inner cylinder.
[0035] With this configuration, the vibration damping components on both sides of the central axis can simultaneously buffer the vibration of the cylinder assembly from both sides of the inner cylinder. This improves the stability of the cylinder assembly support, avoids uneven stress and displacement caused by unilateral vibration damping, and prevents structural loosening caused by excessive stress on one side, thus ensuring the safety and reliability of equipment operation and extending the overall service life of the equipment. Furthermore, it further reduces the amplitude of the overall vibration of the cylinder assembly, thereby further preventing vibration transmission to the housing and further reducing operating noise.
[0036] Optionally, the base includes two support frames, which are respectively placed on both sides of the central axis in the third direction. Each support frame has a support surface, and each support surface is inclined toward the central axis.
[0037] The vibration damping components on both sides of the central axis in the third direction are respectively disposed on the two support frames, and the two ends of the arc beam are disposed on the support surface; the direction parallel to the support surface and perpendicular to the extension direction of the central axis is the fourth direction, and in the direction away from the central axis in the fourth direction, the multiple arc beams in the vibration damping components are arranged in order of descending convex height.
[0038] This configuration, on the one hand, combines the inclined support surface with the arrangement of the curved beam, which makes the support direction of the curved beam more closely match the force trajectory of the cylinder assembly's vibration, enhancing the targeted vibration reduction, and on the other hand, it can form a two-way limit on the cylinder assembly through the symmetrical inclined supports on both sides, preventing it from deviating excessively in the third direction.
[0039] On the other hand, the arc-shaped beams in the fourth direction are arranged in a gradient of convex height, which can enable multi-level vibration reduction to be triggered precisely in a preset sequence, ensuring efficient buffering under different vibration intensities.
[0040] Optionally, in the third direction, multiple vibration damping components are provided on both sides of the central axis, arranged at intervals along the extension direction of the central axis.
[0041] This configuration allows multiple sets of spaced vibration damping components to provide multi-point support to the cylinder assembly from different positions along the central axis. Combined with symmetrically arranged vibration damping components on both sides, this provides comprehensive support for the cylinder assembly. Firstly, it enables the even distribution and efficient absorption of vibration energy across multiple damping components, further dispersing the pressure and vibration energy of the cylinder assembly. This further prevents vibration damping failure or structural damage caused by excessive local stress, while also reducing the transmission of vibration to the housing and lowering operating noise. Secondly, comprehensive support further enhances the stability and balance of the cylinder assembly support, preventing displacement or increased vibration caused by unstable support, thus ensuring the safety and reliability of equipment operation and extending the overall service life of the equipment. Attached Figure Description
[0042] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0043] Figure 1 A perspective view of a portion of the structure of the garment processing equipment provided in the embodiments of this application;
[0044] Figure 2 A perspective view of a portion of the structure of the garment processing device provided in an embodiment of this application;
[0045] Figure 3 A front view of a portion of the structure of the garment processing device provided in an embodiment of this application;
[0046] Figure 4 for Figure 1 Enlarged view of point A in the middle;
[0047] Figure 5 for Figure 2 Enlarged view of point B in the middle;
[0048] Figure 6 for Figure 3 Enlarged view of point C in the middle;
[0049] Figure 7 A perspective view of the vibration damping component provided in the embodiments of this application assembled on the base;
[0050] Figure 8 This is a front view of the curved beam provided in an embodiment of this application;
[0051] Figure 9 A perspective view of a portion of the structure of the base provided in an embodiment of this application;
[0052] Figure 10 A top view of a portion of the structure of the base provided in an embodiment of this application;
[0053] Figure 11 for Figure 10 Sectional view along the DD direction;
[0054] Figure 12 for Figure 7 Enlarged view at point E in the middle;
[0055] Figure 13 A perspective view of the slider provided in the embodiments of this application;
[0056] Figure 14 A perspective view of the mounting plate and limiting rod provided in an embodiment of this application;
[0057] Figure 15 This is a perspective view of the arc-shaped beam provided in an embodiment of this application.
[0058] Explanation of reference numerals in the attached figures:
[0059] 1-Base; 11-Guide groove; 12-Support frame; 121-Support surface; 13-Allowing hole;
[0060] 2-Curl assembly; 21-Inner tube; 211-Clothing handling chamber; 22-Mounting plate; 23-Limiting rod;
[0061] 3-Vibration damping component; 31-Arc beam; 311-Limiting hole; 32-Slider; 33-Limiting block. Detailed Implementation
[0062] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0063] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0064] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0065] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0066] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.
[0067] As described in the background section of this application, with the continuous improvement of people's living standards and the increasing demand for automation of housework, washing machines, as a core clothing processing device, have been widely used in various scenarios, greatly reducing people's burden of washing clothes. In the washing machine's workflow, the spin-drying stage is a crucial step, which mainly relies on the centrifugal force generated by the high-speed rotation of the inner drum to separate the water adsorbed in the clothes, thereby shortening the subsequent drying or tumble drying time and improving the user experience.
[0068] In related technologies, when the inner drum rotates at high speed to spin-dry, the entire drum assembly will vibrate due to centrifugal force. However, excessive vibration will cause the washing machine body to vibrate and generate noise.
[0069] In view of the above-mentioned problems, this application provides a garment processing device to solve the problem that excessive vibration of the central tube assembly in related technologies will cause the box to vibrate and generate noise.
[0070] The technical solution of this application will be further described below with reference to specific embodiments and accompanying drawings:
[0071] In some alternative embodiments, the garment handling device includes a housing (not shown in the figure), the interior of which forms an installation space, and as... Figure 1 , Figure 2 and Figure 3 As shown, the housing includes a base 1.
[0072] This design serves two purposes. First, the enclosure provides a stable container and assembly platform for the various components within the garment processing equipment, ensuring that each component can be precisely positioned according to its preset location, thus laying a structural foundation for the overall operation of the garment processing equipment.
[0073] On the other hand, as an important component of the enclosure, the base 1 not only provides stable support for the components above it, preventing them from shifting or vibrating due to unstable support, but also enhances the overall structural strength of the enclosure, reduces the deformation of the enclosure caused by vibration transmission, and thus ensures the stability and safety of the equipment operation.
[0074] In some alternative embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the garment processing equipment also includes a cylinder assembly 2, which is disposed in the installation space of the housing and located above the base 1. The cylinder assembly 2 includes a rotatable inner cylinder 21, and a garment processing cavity 211 is formed inside the inner cylinder 21.
[0075] With this configuration, the clothing processing cavity 211 formed inside the inner cylinder 21 can provide an independent space for the clothing processing process, ensuring the orderly progress of the clothing processing process.
[0076] In some alternative embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the garment processing equipment also includes a vibration damping component 3, which is disposed between the base 1 and the cylinder assembly 2, and as... Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the vibration damping component 3 includes multiple arc-shaped beams 31 arranged side by side and spaced apart. All arc-shaped beams 31 protrude towards the cylindrical component 2, and are configured to reduce their protrusion height under the pressure of the cylindrical component 2 when supporting the cylindrical component 2. The protrusion heights of the multiple arc-shaped beams 31 are different, and the stiffness of the multiple arc-shaped beams 31 increases sequentially from high to low protrusion height. The ends of each arc-shaped beam 31 are movably mounted on the base 1.
[0077] Among them, the multiple arc-shaped beams 31 are configured such that when the inner cylinder 21 is in a stationary state, the top of at least one arc-shaped beam 31 is in support contact with the cylinder assembly 2; when the inner cylinder 21 rotates relative to the box body, the multiple arc-shaped beams 31 are in support contact with the cylinder assembly 2 in sequence according to the order of the height of the protrusion from high to low.
[0078] With this configuration, since the curved beams 31 all protrude towards the cylindrical assembly 2 located above them, the cylindrical assembly 2 will exert force on the top of the curved beams 31. Therefore, the top of the curved beams 31 has a stress point. Furthermore, since the ends of the curved beams 31 are located on the base 1, the ends of the curved beams 31 have support points that support the structure of the curved beams 31 themselves. Figure 8 As shown, the vertical distance h between the stress point and the support point constitutes the lever arm length of the arc beam 31 when it is under stress. The lower the protrusion height, the shorter the lever arm. Since the lever arm is shorter, the arc beam 31 is less likely to deform under the same external force, that is, the stiffness of the arc beam 31 is greater. Therefore, the stiffness of multiple arc beams 31 increases sequentially in order of protrusion height from high to low.
[0079] When the inner cylinder 21 is stationary, the cylinder assembly 2 is also stationary, and since the top of at least one arc beam 31 is in contact with the support of the cylinder assembly 2, the stable support of the stationary cylinder assembly 2 can be ensured by the support of at least one arc beam 31.
[0080] When the inner cylinder 21 rotates, causing the cylinder assembly 2 to vibrate, multiple arc-shaped beams 31 will sequentially contact the cylinder assembly 2 in order of decreasing protrusion height, that is, in order of increasing stiffness, and in order of increasing deformation difficulty. Therefore, through the sequential deformation of the multiple arc-shaped beams 31 that sequentially contact the cylinder assembly 2, the vibration of the cylinder assembly 2 can be buffered and reduced in stages, that is, multi-stage buffering and vibration reduction can be achieved. At the same time, when the arc-shaped beams 31 deform, their ends will move on the base 1. Therefore, the movement of the ends of the arc-shaped beams 31 can provide room for the arc-shaped beams 31 to deform under the pressure of the cylinder assembly 2 and reduce the protrusion height, avoiding the limitation of deformation due to fixed ends, which would affect the vibration reduction effect. It can also disperse vibration energy, and with the deformation buffer of the arc-shaped beams 31 themselves, it can absorb the vibration energy of the cylinder assembly 2 more efficiently.
[0081] As can be seen from the above description, this application can effectively suppress the vibration of the cylinder assembly 2 through multi-stage buffering and vibration reduction of multiple arc beams 31 and the movement of the ends. Compared with the telescopic vibration damper in the related technology, it can make the vibration of the cylinder assembly 2 smaller, which helps to avoid excessive vibration of the cylinder assembly 2 from causing the box to vibrate and helps to avoid noise generation.
[0082] In some alternative embodiments, the garment handling device includes a housing (not shown in the figure), the interior of which forms an installation space, and as... Figure 1 , Figure 2 and Figure 3 As shown, the housing includes a base 1.
[0083] like Figure 1 , Figure 2 and Figure 3 As shown, the garment processing equipment also includes a cylinder assembly 2, which is disposed in the installation space of the housing and located above the base 1. The cylinder assembly 2 includes a rotatable inner cylinder 21, and a garment processing cavity 211 is formed inside the inner cylinder 21.
[0084] like Figure 1 , Figure 2 and Figure 3 As shown, the garment processing equipment also includes a vibration damping component 3, which is disposed between the base 1 and the cylinder assembly 2, and as... Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the vibration damping component 3 includes multiple arc-shaped beams 31 arranged side by side and spaced apart. All arc-shaped beams 31 protrude towards the cylindrical component 2, and are configured to reduce their protrusion height under the pressure of the cylindrical component 2 when supporting the cylindrical component 2. The protrusion heights of the multiple arc-shaped beams 31 are different, and the stiffness of the multiple arc-shaped beams 31 increases sequentially from high to low protrusion height. The ends of each arc-shaped beam 31 are movably mounted on the base 1.
[0085] Among them, the multiple arc-shaped beams 31 are configured such that when the inner cylinder 21 is in a stationary state, the top of at least one arc-shaped beam 31 is in support contact with the cylinder assembly 2; when the inner cylinder 21 rotates relative to the box body, the multiple arc-shaped beams 31 are in support contact with the cylinder assembly 2 in sequence according to the order of the height of the protrusion from high to low.
[0086] With this configuration, since the curved beams 31 all protrude towards the cylindrical assembly 2 located above them, the cylindrical assembly 2 will exert force on the top of the curved beams 31. Therefore, the top of the curved beams 31 has a stress point. Furthermore, since the ends of the curved beams 31 are located on the base 1, the ends of the curved beams 31 have support points that support the structure of the curved beams 31 themselves. Figure 8 As shown, the vertical distance h between the stress point and the support point constitutes the lever arm length of the arc beam 31 when it is under stress. The lower the protrusion height, the shorter the lever arm. Since the lever arm is shorter, the arc beam 31 is less likely to deform under the same external force, that is, the stiffness of the arc beam 31 is greater. Therefore, the stiffness of multiple arc beams 31 increases sequentially in order of protrusion height from high to low.
[0087] When the inner cylinder 21 is stationary, the cylinder assembly 2 is also stationary, and since the top of at least one arc beam 31 is in contact with the support of the cylinder assembly 2, the stable support of the stationary cylinder assembly 2 can be ensured by the support of at least one arc beam 31.
[0088] When the inner cylinder 21 rotates, causing the cylinder assembly 2 to vibrate, multiple arc-shaped beams 31 will sequentially contact the cylinder assembly 2 in order of decreasing protrusion height, that is, in order of increasing stiffness, and in order of increasing deformation difficulty. Therefore, through the sequential deformation of the multiple arc-shaped beams 31 that sequentially contact the cylinder assembly 2, the vibration of the cylinder assembly 2 can be buffered and reduced in stages, that is, multi-stage buffering and vibration reduction can be achieved. At the same time, when the arc-shaped beams 31 deform, their ends will move on the base 1. Therefore, the movement of the ends of the arc-shaped beams 31 can provide room for the arc-shaped beams 31 to deform under the pressure of the cylinder assembly 2 and reduce the protrusion height, avoiding the limitation of deformation due to fixed ends, which would affect the vibration reduction effect. It can also disperse vibration energy, and with the deformation buffer of the arc-shaped beams 31 themselves, it can absorb the vibration energy of the cylinder assembly 2 more efficiently.
[0089] As can be seen from the above description, this application can effectively suppress the vibration of the cylinder assembly 2 through multi-stage buffering and vibration reduction of multiple arc beams 31 and the movement of the ends. Compared with the telescopic vibration damper in the related technology, it can make the vibration of the cylinder assembly 2 smaller, which helps to avoid excessive vibration of the cylinder assembly 2 from causing the box to vibrate and helps to avoid noise generation.
[0090] In addition, since the arc beam 31 with low stiffness is easy to deform, this application can effectively buffer and reduce vibration of the cylinder assembly 2 by using the arc beam 31 with low stiffness. At the same time, since the arc beam 31 with high stiffness is not easy to deform, this application can also effectively support the cylinder assembly 2 by using the arc beam 31 with high stiffness.
[0091] In some alternative embodiments, such as Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the vibration damping component 3 is equipped with three arc-shaped beams 31 as an example. Specifically, when the inner cylinder 21 is in a static state, the cylinder assembly 2 presses down on the arc-shaped beam 31 with the highest protrusion. Since the arc-shaped beam 31 with the highest protrusion has low stiffness and is easily deformed, the cylinder assembly 2 will continue to press down and will press down on the arc-shaped beam 31 with the second highest protrusion. The arc-shaped beam 31 with the second highest protrusion will undergo slight deformation to support the cylinder assembly 2, thus satisfying the support force required by the cylinder assembly 2 when the inner cylinder 21 is in a static state.
[0092] When the inner cylinder 21 rotates relative to the housing, the force exerted by the cylinder assembly 2 on the vibration damping assembly 3 can be either greater than the static pressure or less than the static pressure. Here, the static pressure is the force exerted by the cylinder assembly 2 on the vibration damping assembly 3 when the inner cylinder 21 is stationary; that is, the static pressure is equal to the weight of the cylinder assembly 2. Specifically, when the dynamic force of the cylinder assembly 2 is downward, the force exerted by the cylinder assembly 2 on the vibration damping assembly 3 is greater than the static pressure. In this case, the arc beam 31 with the highest protrusion and the arc beam 31 with the second highest protrusion continue to deform. When the force exerted by the cylinder assembly 2 on the vibration damping assembly 3 is too large, the arc beam 31 with the lowest protrusion intervenes. Since the arc beam 31 with the lowest protrusion has the greatest stiffness, its slight deformation can absorb the large downward force, achieving effective buffering and vibration damping. When the dynamic force of the cylinder assembly 2 is upward, the force exerted by the cylinder assembly 2 on the vibration damping assembly 3 is less than the static pressure. In this case, effective buffering and vibration damping can be achieved solely through the deformation of the arc beam 31 with the highest protrusion.
[0093] In other embodiments, the vibration damping component 3 may also be provided with two, four or more arc-shaped beams 31. The number of arc-shaped beams 31 in the vibration damping component 3 is set flexibly. Specifically, it can be set according to actual needs. This application embodiment does not make specific limitations in this regard.
[0094] In some alternative embodiments, the two ends of the curved beam 31 are along a first direction (e.g., Figure 7 The arc beams 31 are arranged sequentially in the X direction, and at least one end of the arc beam 31 is movably disposed on the base 1 in the first direction, which is parallel to the extension direction of the central axis of the inner cylinder 21.
[0095] With this configuration, since the cylinder assembly 2 experiences both radial and axial vibrations of the inner cylinder 21, setting the first direction parallel to the extension direction of the central axis of the inner cylinder 21 allows the movement of the end of the arc-shaped beam 31 to precisely match the vibration trend of the cylinder assembly 2 along that direction. This not only buffers and reduces the radial vibration of the inner cylinder 21 through the deformation of the arc-shaped beam 31, but also buffers and reduces the axial vibration of the inner cylinder 21 through the movement of the end of the arc-shaped beam 31. This further buffers and reduces the vibration of the cylinder assembly 2, thereby helping to prevent excessive vibration of the cylinder assembly 2 from causing vibration of the housing, and further reducing noise generation.
[0096] Furthermore, in some optional embodiments, both ends of the arc-shaped beam 31 are movably disposed on the base 1 along a first direction.
[0097] This design, with movable ends, not only avoids uneven deformation or vibration reduction failure caused by restricted movement on one side, ensuring that the arc beam 31 deforms smoothly along the preset direction, but also provides more ample and balanced space for the arc beam 31 to deform under the force of the cylindrical assembly 2, ensuring that the arc beam 31 can absorb vibration energy more efficiently.
[0098] In addition, synchronous movement at both ends can make the arc beam 31 more evenly stressed, reduce local stress concentration, and reduce the risk of bending damage.
[0099] Furthermore, in some alternative embodiments, such as Figure 9 , Figure 10 and Figure 11 As shown, the base 1 is provided with a plurality of guide grooves 11, the length direction of which all extend along the aforementioned first direction, and as... Figure 4 and Figure 12 As shown, multiple guide grooves 11 are arranged in a one-to-one correspondence with multiple arc-shaped beams 31.
[0100] like Figure 4 and Figure 12 As shown, at least one end of the arc beam 31 is provided with a slider 32, which is slidably disposed in the guide groove 11 corresponding to the arc beam 31 along the first direction, so that at least one end of the arc beam 31 is movably disposed on the base 1 along the first direction.
[0101] With this configuration, on the one hand, since the guide groove 11 can provide precise sliding trajectory constraints for the slider 32 to slide along the first direction, the guide groove 11 and the slider 32 can guide each other along the first direction to ensure that the end of the arc beam 31 always moves stably along the extension direction parallel to the central axis of the inner cylinder 21, thereby avoiding the displacement of movement and causing the vibration reduction direction to be misaligned, and ensuring targeted buffering and vibration reduction of the cylinder assembly 2 along the first direction.
[0102] On the other hand, through the friction between the slider 32 and the guide groove 11, some of the vibration kinetic energy can be converted into heat energy and dissipated, thus enhancing the vibration reduction effect.
[0103] In some alternative embodiments, a guide rod extending along a first direction may be provided on the base 1, and a sleeve is provided at the end of the arc beam 31, the sleeve being slidably fitted onto the guide rod along the first direction.
[0104] With this configuration, the sleeve and guide rod work together to not only enable the end of the arc beam 31 to be movable on the base 1 along the first direction, but also facilitate the movable arrangement of the end of the arc beam 31 along the first direction due to the simple structure of the sleeve and guide rod.
[0105] In other embodiments, the end of the arc-shaped beam 31 can also be movably mounted on the base 1 through other arbitrary structures, and this application embodiment does not specifically limit this.
[0106] Furthermore, in some alternative embodiments, slider 32 is an elastic slider.
[0107] With this configuration, the elastic deformation of the elastic slider can firstly further absorb the vibration energy transmitted by the cylinder assembly 2, further buffer and reduce vibration, and thus further enhance the vibration reduction effect; secondly, it can alleviate the rigid friction between the slider 32 and the guide groove 11, reduce abnormal noise generated during sliding, and reduce overall noise; finally, it can also adapt to the slight offset during sliding, avoid jamming, and ensure the smooth movement of the end of the arc beam 31.
[0108] Furthermore, in some alternative embodiments, such as Figure 4 and Figure 12 As shown, among the multiple arc beams 31, a limiting block 33 is provided in the guide groove 11 corresponding to the arc beam 31 with the lowest protrusion height. The limiting block 33 is provided on at least one side of the arc beam 31 in the first direction. The limiting block 33 is configured to cooperate with the slider 32 to limit the deformation of the arc beam 31 before the deformation exceeds the deformation limit.
[0109] With this configuration, since the arc beam 31 with the lowest protrusion height among the multiple arc beams 31 is the last to make contact with the support of the cylindrical assembly 2, the limiting block 33, in conjunction with the slider 32 at the end of the arc beam 31, can not only limit the maximum deformation of the arc beam 31, but also, to a certain extent, limit the maximum deformation of the other arc beams 31. This not only prevents damage to the arc beams 31 due to excessive deformation, thus ensuring the integrity of the vibration damping assembly 3, but also prevents the arc beams 31 from touching the bottom, causing vibration to be directly transmitted to the base 1 and the housing, ensuring uninterrupted vibration damping effect.
[0110] Furthermore, in some optional embodiments, where both ends of the arc-shaped beam 31 are movably mounted on the base 1, such as... Figure 12 As shown, both ends of the arc beam 31 are provided with sliders 32, and the arc beam 31 with the lowest protrusion height is provided with limit blocks 33 on both sides of the first direction.
[0111] This configuration further limits the maximum deformation of each arc beam 31, thereby not only preventing damage to each arc beam 31 due to excessive deformation, but also preventing the arc beam 31 with the lowest protrusion height from touching the bottom, causing vibration to be directly transmitted to the base 1 and the box.
[0112] Furthermore, in some alternative embodiments, such as Figure 11As shown, the width b1 of the guide groove 11 opening is smaller than the width b2 of the guide groove bottom, and the cross-sectional shape of the guide groove bottom is an arc shape, as shown. Figure 13 As shown, the shape of the slider 32 is adapted to the cross-sectional shape of the guide groove 11.
[0113] With this design, the narrow opening and wide bottom of the groove can limit the slider 32 by the guide groove 11, preventing the slider 32 from coming out of the guide groove 11 and ensuring the stability of the sliding fit between the slider 32 and the guide groove 11. This can further ensure targeted buffering and vibration reduction of the cylinder assembly 2 along the first direction.
[0114] On the other hand, the arc-shaped groove bottom and the matching slider can increase the contact area between the slider 32 and the guide groove 11, thereby dispersing the local pressure during the sliding process, reducing stress concentration, and making the slider 32 slide more smoothly, reducing motion resistance and friction wear, so that the end movement of the arc beam 31 can respond to vibration in a timely manner, achieving efficient vibration reduction.
[0115] In other embodiments, the groove opening width b1 of the guide groove 11 can be equal to or greater than the groove bottom width b2 of the guide groove 11. The size relationship between the groove opening width b1 and the groove bottom width b2 is set flexibly. Specifically, it can be set according to actual needs. This application embodiment does not make specific limitations in this regard.
[0116] In other embodiments, the cross-sectional shape of the bottom of the guide groove 11 can also be U-shaped or V-shaped. The cross-sectional shape of the bottom of the groove is set flexibly. Specifically, it can be set according to actual needs. This application embodiment does not make specific limitations on this.
[0117] In some alternative embodiments, Figure 4 , Figure 5 and Figure 14 As shown, the cylinder assembly 2 also includes a mounting plate 22 and a limiting rod 23 disposed on the mounting plate 22, the axial direction of the limiting rod 23 being along a second direction (e.g., Figure 4 (Extends in the Z direction).
[0118] The curved beam 31 protrudes along the second direction, and as... Figure 12 and Figure 15 As shown, at least one curved beam 31 has a limiting hole 311 at its top, such as Figure 4 and Figure 5 As shown, the limiting hole 311 allows the limiting rod 23 to be inserted. The limiting hole 311 is configured to engage with the limiting rod 23 at the upper radial position when the arc beam 31 deforms along the second direction.
[0119] With this configuration, the limiting rod 23 and the limiting hole 311 can constrain the deformation trajectory of the arc beam 31 along the second direction, preventing the arc beam 31 from shifting or misaligning, ensuring that the arc beam 31 always deforms along the second direction, and thus ensuring that the arc beam 31 can effectively buffer and dampen the vibration of the cylinder assembly 2 along the second direction.
[0120] Furthermore, in some alternative embodiments, such as Figure 4 and Figure 5 As shown, the top of the arc beam 31 with the highest protrusion is connected to the mounting plate 22, and the tops of the other arc beams 31 are provided with limit holes 311, and each limit hole 311 is provided with a limit rod 23 that cooperates with it for limiting.
[0121] In addition, such as Figure 9 and Figure 10 As shown, the base 1 is also provided with a clearance hole 13, and each limit rod 23 is provided with a corresponding clearance hole 13. The clearance hole 13 allows the limit rod 23 to be inserted, so as to realize the clearance of the base 1 to the limit rod 23.
[0122] This design serves two purposes. First, the arc-shaped beam 31, with its highest protrusion, is directly connected to the mounting plate 22, allowing it to preferentially bear the force of the cylinder assembly 2 and respond quickly to vibrations. Second, the clearance hole 13 provides ample space for the limiting rod 23 to move, preventing interference between the limiting rod 23 and the base 1 and ensuring smooth deformation of the arc-shaped beam 31 and normal operation of the limiting rod 23.
[0123] In other embodiments, each of the arc-shaped beams 31 may be provided with a limiting hole 311 at its top, and each limiting hole 311 may be provided with a limiting rod 23 that cooperates with it for limiting.
[0124] This design avoids localized stress concentration in the arc-shaped beam 31 connected to the mounting plate 22, prevents damage to the arc-shaped beam 31 due to uneven stress, ensures normal operation of each arc-shaped beam 31, and extends the service life of the arc-shaped beam 31.
[0125] In some optional embodiments, the extension direction of the central axis of the inner cylinder 21 is horizontal, and the horizontal direction perpendicular to the central axis of the inner cylinder 21 is a third direction (e.g., Figure 3 (in the F direction), and as Figure 3 As shown, vibration damping components 3 are provided on both sides of the central axis of the inner cylinder 21 in the third direction.
[0126] With this configuration, the vibration damping components 3 on both sides of the central axis can simultaneously buffer the vibration of the cylinder assembly 2 from both sides of the inner cylinder 21. On the one hand, this can improve the stability of the cylinder assembly 2 support, avoid uneven force and displacement caused by unilateral vibration damping, and prevent structural loosening caused by excessive force on one side, thereby ensuring the safety and reliability of equipment operation and extending the overall service life of the equipment. On the other hand, it can further reduce the amplitude of the overall vibration of the cylinder assembly 2, thereby further preventing the vibration from being transmitted to the housing and further reducing operating noise.
[0127] In other embodiments, the vibration damping component 3 can be located directly below the central axis of the inner cylinder 21. In this case, to prevent the cylinder assembly 2 from swaying along a third direction, vibration damping structures located between the box and the cylinder assembly 2 can be provided on both sides of the cylinder assembly 2 in the third direction. The vibration damping structure may include springs or elastic rubber blocks, etc.
[0128] This arrangement simplifies the placement of the vibration damping component 3 between the base 1 and the cylinder component 2, thereby facilitating the assembly of the vibration damping component 3.
[0129] Furthermore, in some alternative embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the base 1 includes two support frames 12, which are respectively placed on both sides of the central axis of the inner cylinder 21 in a third direction. Figure 4 and Figure 5 As shown, both support frames 12 have support surfaces 121, each support surface 121 is inclined toward the central axis of the inner cylinder 21, and each support surface 121 is provided with a guide groove 11.
[0130] Vibration damping components 3 on both sides of the central axis of the inner cylinder 21 are respectively mounted on two support frames 12. The two ends of the arc-shaped beam 31 are mounted on the support surface 121, and corresponding guide grooves 11 are provided on the support surface 121. The direction parallel to the support surface 121 and perpendicular to the extension direction of the central axis of the inner cylinder 21 is the fourth direction (e.g., Figure 6 (in the Y direction), in the fourth direction away from the central axis of the inner cylinder 21 (such as...) Figure 6 In the Y direction, multiple arc-shaped beams 31 in the vibration damping assembly 3 are arranged in order of descending height of their protrusions.
[0131] This arrangement, on the one hand, combines the inclined support surface 121 with the arrangement of the arc beam 31, so that the support direction of the arc beam 31 is more in line with the force trajectory of the vibration of the cylinder assembly 2, enhancing the vibration reduction targeting, and on the other hand, the symmetrical inclined supports on both sides form a two-way limit on the cylinder assembly 2, preventing it from deviating excessively in the third direction.
[0132] On the other hand, the arc-shaped beams 31 in the fourth direction are arranged in a gradient of convex height, which can enable multi-level vibration reduction to be precisely triggered in a preset sequence, ensuring efficient buffering under different vibration intensities.
[0133] In other embodiments, the multiple arc-shaped beams 31 can be arranged in a manner where the height of the protrusions alternates between high and low, or they can be arranged in a manner where the height of the protrusions is higher in the middle and lower on both sides. The arrangement of the multiple arc-shaped beams 31 is quite flexible, and can be set according to actual needs. This application embodiment does not impose specific limitations on this.
[0134] Furthermore, in some alternative embodiments, such as Figure 1 and Figure 2 As shown, in the third direction, multiple vibration damping components 3 are arranged at intervals along the extension direction of the central axis on both sides of the inner cylinder 21.
[0135] With this configuration, multiple sets of spaced vibration damping components 3 can provide multi-point support to the cylinder assembly 2 from different positions along the central axis. Combined with the symmetrically arranged vibration damping components 3 on both sides, this achieves all-around support for the cylinder assembly 2. On the one hand, this allows vibration energy to be evenly distributed and efficiently absorbed across the multiple vibration damping components 3, further dispersing the pressure and vibration energy of the cylinder assembly 2. This further prevents vibration damping failure or structural damage caused by excessive local stress, and also further weakens the transmission of vibration to the housing, further reducing operating noise. On the other hand, all-around support further enhances the stability and balance of the cylinder assembly 2's support, further preventing displacement or increased vibration caused by unstable support, thus further ensuring the safety and reliability of equipment operation and extending the overall service life of the equipment.
[0136] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1.A laundry treating apparatus, characterized by, The application relates to a cabinet, which comprises a cabinet body, a mounting space formed in the cabinet body, and a base of the cabinet body; a drum assembly arranged in the mounting space and above the base, the drum assembly comprising an inner drum rotatably arranged, and a laundry treatment cavity formed in the inner drum; and a damping assembly arranged between the base and the drum assembly, the damping assembly comprising: a plurality of arc-shaped beams arranged in parallel and at intervals, the arc-shaped beams being convex to the drum assembly and being configured to reduce the convex height under the pressure of the drum assembly when supporting the drum assembly; the convex heights of the arc-shaped beams are different, and the stiffness of the arc-shaped beams increases in sequence from high to low according to the convex height, and the end of each arc-shaped beam is movably arranged on the base; wherein, when the inner drum is in a static state, the top of at least one arc-shaped beam is in supporting contact with the drum assembly; when the inner drum rotates relative to the cabinet, the arc-shaped beams are in supporting contact with the drum assembly in sequence according to the convex height from high to low; the two ends of the arc-shaped beam are arranged in sequence along a first direction, and at least one end of the arc-shaped beam is movably arranged on the base along the first direction, and the first direction is parallel to the extension direction of the central axis of the inner drum; the extension direction of the central axis of the inner drum is a horizontal direction, and the horizontal direction perpendicular to the central axis of the inner drum is a third direction; the damping assembly is arranged on both sides of the central axis of the inner drum in the third direction. A plurality of guide grooves are arranged on the base, the length direction of the guide grooves extends along the first direction, and the guide grooves and the arc-shaped beams are arranged in one-to-one correspondence; at least one end of the arc-shaped beam is provided with a sliding block, the sliding block is slidably arranged in the corresponding guide groove of the arc-shaped beam along the first direction, so that at least one end of the arc-shaped beam is movably arranged on the base along the first direction. The sliding block is an elastic sliding block. Among the plurality of arc-shaped beams, the guide groove corresponding to the arc-shaped beam with the lowest convex height is provided with a limiting block, the limiting block is arranged on at least one side of the arc-shaped beam in the first direction, and the limiting block is configured to limit the sliding block before the deformation amount of the arc-shaped beam exceeds the deformation limit. The slot width of the guide groove is smaller than the groove bottom width of the guide groove, and the cross-sectional shape of the groove bottom of the guide groove is arc-shaped. The shape of the sliding block is matched with the cross-sectional shape of the guide groove. The drum assembly further comprises a mounting plate and a limiting rod arranged on the mounting plate, and the axial direction of the limiting rod extends along a second direction; the arc-shaped beam is convex along the second direction, and the top of at least one arc-shaped beam is provided with a limiting hole for inserting the limiting rod, and the limiting hole is configured to limit the limiting rod in the radial direction of the limiting rod when the arc-shaped beam is deformed along the second direction. 2.The laundry treating apparatus of claim 1, wherein 3.The laundry treating apparatus of claim 2, wherein 4.The laundry treating apparatus of claim 2 or 3, wherein 5.The laundry treating apparatus according to claim 2 or 3, wherein, 6.The laundry treating apparatus according to any one of claims 1-3, wherein, 7.The laundry treating apparatus according to any one of claims 1-3, wherein, The base comprises two support frames, the two support frames are arranged on two sides of the third direction of the central axis, and each of the two support frames has a support surface, and each support surface is arranged to be inclined towards the central axis; The damping components on the two sides of the third direction of the central axis are arranged on the two support frames, and the two ends of the arc-shaped beams are arranged on the support surfaces; a direction parallel to the support surfaces and perpendicular to the extension direction of the central axis is a fourth direction, and in the direction away from the central axis in the fourth direction, the arc-shaped beams in the damping components are arranged in order from high to low in the convex height. 8.The laundry treating apparatus according to any one of claims 1-3, wherein, In the third direction, a plurality of damping components are arranged on both sides of the central axis and are arranged at intervals along the extension direction of the central axis.
Citation Information
Patent Citations
Self-adaptive damping device for structural vibration reduction
CN114635942A
Vibration reduction module of clothes treatment equipment and clothes treatment equipment
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