Vibration reduction structure and clothes processing equipment

Abstract

The utility model provides a vibration reduction structure and clothes processing equipment, the vibration reduction structure comprises a shell arranged on the periphery of a barrel, the shell is internally provided with a containing space, and the containing space is filled with magnetic fluid; the first permanent magnet is arranged in the accommodating space; the second permanent magnet is arranged in the containing space, the second permanent magnet and the first permanent magnet are at least partially opposite, the polarities of the opposite parts are opposite, a magnetic field is formed, and the magnetic fluid is used for hindering vibration transmission under the action of the magnetic field. According to the vibration reduction structure provided by the invention, when the barrel generates vibration, the vibration is transmitted to the shell, the magnetic fluid in the shell has higher viscosity and larger flow resistance under the action of a magnetic field formed by the first permanent magnet and the second permanent magnet, so that the vibration transfer is greatly hindered, the vibration of the barrel is counteracted, the vibration of the barrel is prevented from being transmitted to other parts, and the vibration reduction effect is improved. Therefore, the problems of overall walking of the washing machine, failure of strength of feet, box body torsional deformation or noise generation and the like are avoided.

Description

Technical Field

[0001] This application belongs to the field of washing machine technology, and in particular relates to a vibration reduction structure and clothing processing equipment. Background Technology

[0002] During the washing process, the drum of a washing machine usually rotates. During this rotation, the drum may vibrate due to uneven distribution of clothes, water pressure fluctuations, etc. This can lead to problems such as the overall movement of the washing machine, failure of the feet, and torsional deformation of the machine body. Therefore, the problem of the vibration of the drum during the washing process being transmitted to other parts of the washing machine urgently needs to be solved. Utility Model Content

[0003] This application provides a vibration damping structure and a clothes handling device to solve the problem that vibrations of the drum in existing washing machines are transmitted to other parts of the washing machine during the washing process.

[0004] This application provides a vibration damping structure applied to a garment processing device, the garment processing device including a cylinder, and the vibration damping structure comprising:

[0005] A shell is disposed on the outer periphery of the cylinder, and the shell has an internal receiving space filled with a magnetorheological fluid;

[0006] A first permanent magnet is disposed within the accommodating space;

[0007] A second permanent magnet is disposed within the receiving space. The second permanent magnet is at least partially opposite to the first permanent magnet, and the opposing portions have opposite polarities and form a magnetic field. The magnetofluid is used to impede the transmission of vibration under the action of the magnetic field.

[0008] Optionally, it also includes a mounting plate disposed within the receiving space and elastically connected to the housing;

[0009] The first permanent magnet is connected to the mounting plate, and the second permanent magnet is connected to the housing;

[0010] When the cylinder vibrates, the second permanent magnet moves relative to the first permanent magnet to change the viscosity of the magnetic fluid at various points within the containment space.

[0011] Optionally, the extension directions of the first permanent magnet and the second permanent magnet are parallel to each other, and the first permanent magnet and the second permanent magnet are partially arranged opposite each other in the extension direction perpendicular to the extension direction of the first permanent magnet and the second permanent magnet.

[0012] Optionally, both the first permanent magnet and the second permanent magnet comprise multiple units, which are arranged alternately along the first direction.

[0013] Optionally, it also includes a rubber component, through which the mounting plate is elastically connected to the housing.

[0014] Optionally, the rubber component extends circumferentially along the mounting plate;

[0015] The mounting plate and the rubber component divide the accommodating space into a first cavity and a second cavity. The mounting plate is provided with a through hole, which connects the first cavity and the second cavity.

[0016] When the cylinder vibrates, the magnetofluid flows between the first cavity and the second cavity through the through hole.

[0017] Optionally, the through holes include a plurality of holes and are spaced apart on the mounting plate.

[0018] Optionally, it also includes a spring that connects the mounting plate and the housing.

[0019] This application also provides a garment processing device, including a cylinder and a vibration damping structure as described above.

[0020] Optionally, the vibration damping structure includes multiple structures, and the multiple vibration damping structures are distributed at intervals along the circumference of the cylinder.

[0021] The vibration damping structure provided in this application embodiment exhibits the characteristic properties of both Newtonian and plastic fluids in a magnetic field. Therefore, when the drum vibrates, the vibration is transmitted to the shell. Under the influence of the magnetic field formed by the first and second permanent magnets, the magnetic fluid inside the shell has a high viscosity and large flow resistance, thus greatly hindering the transmission of vibration. This achieves the cancellation of the drum vibration and blocks the transmission of the drum vibration to other components, thereby avoiding problems such as the washing machine moving as a whole, the failure of the foot strength, the torsional deformation of the cabinet, or the generation of noise. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0023] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0024] Figure 1 This is a cross-sectional view of the vibration reduction structure provided in an embodiment of this application.

[0025] Figure 2 This is a schematic diagram of the installation of the vibration reduction structure provided in the embodiments of this application.

[0026] Figure 3 This is a schematic diagram of a garment processing device provided in an embodiment of this application.

[0027] Figure 4 This is another structural schematic diagram of the clothing processing device provided in the embodiments of this application. Detailed Implementation

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0029] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0033] This application provides a vibration reduction structure and a clothes handling device to solve the problem that the vibration of the drum of an existing washing machine is transmitted to other parts of the washing machine during the washing process. The following description is in conjunction with the accompanying drawings.

[0034] The vibration damping structure provided in this application embodiment is applied to a garment processing device. The garment processing device includes a cylinder 1, and the vibration damping structure includes a shell 2, a first permanent magnet 3, and a second permanent magnet 4. Please refer to... Figure 1 , Figure 1 This is a cross-sectional view of the vibration damping structure provided in an embodiment of this application. A shell 2 is disposed on the outer periphery of a cylindrical body 1. The shell 2 contains a receiving space filled with a magnetic fluid. A first permanent magnet 3 is disposed within the receiving space. A second permanent magnet 4 is disposed within the receiving space. The second permanent magnet 4 and the first permanent magnet 3 are at least partially opposite, and the opposite portions have opposite polarities, forming a magnetic field. The magnetic fluid is used to impede the transmission of vibration under the influence of the magnetic field. It can be understood that opposite polarities mean one is an N pole and the other an S pole, or one is an S pole and the other an N pole.

[0035] The vibration damping structure provided in this application embodiment exhibits the characteristic properties of both Newtonian and plastic fluids in a magnetic field. Therefore, when the drum 1 vibrates, the vibration is transmitted to the shell 2. Under the influence of the magnetic field formed by the first permanent magnet 3 and the second permanent magnet 4, the magnetic fluid in the shell 2 has a high viscosity and large flow resistance, thus greatly hindering the transmission of vibration. This achieves the cancellation of the vibration of the drum 1 and blocks the transmission of the vibration of the drum 1 to other components, thereby avoiding problems such as the overall movement of the washing machine, failure of the foot strength, torsional deformation of the cabinet, or noise generation.

[0036] The shapes of the first permanent magnet 3 and the second permanent magnet 4 are not further limited here. For example, they can be bar magnets, round magnets, block magnets, etc.

[0037] Understandably, in some examples, the first permanent magnet 3 and the second permanent magnet 4 can also be replaced with electromagnets, which will not be explained in detail here.

[0038] Optionally, the vibration damping structure provided in this application embodiment further includes a mounting plate 5, which is disposed in the accommodating space and elastically connected to the shell 2; the first permanent magnet 3 is connected to the mounting plate 5, and the second permanent magnet 4 is connected to the shell 2; wherein, when the cylinder 1 vibrates, the second permanent magnet 4 moves relative to the first permanent magnet 3 to change the viscosity of the magnetic fluid at various points in the accommodating space.

[0039] That is, because the mounting plate 5 is elastically connected to the shell 2, when the cylinder 1 vibrates, the shell 2 will move along the vibration direction with the cylinder 1. Due to the buffering and hysteresis of the elastic connection, the mounting plate 5 will move relative to the shell 2, which in turn causes relative movement between the first permanent magnet 3 and the second permanent magnet 4. Therefore, the distance between the first permanent magnet 3 and the second permanent magnet 4 is changed, resulting in a change in the magnetic field strength formed by the second permanent magnet 4 and the first permanent magnet 3. Since the density of molecular arrangement varies under different magnetic fields of different intensities, when the magnetic field strength formed by the second permanent magnet 4 and the first permanent magnet 3 changes, the density of molecular arrangement of the magnetic fluid in the magnetic field changes. That is, the molecular arrangement of the magnetic fluid is rearranged multiple times. During the rearrangement process, the friction between molecules converts the mechanical energy of vibration into heat energy, thereby achieving the effect of vibration reduction.

[0040] Optionally, the extension directions of the first permanent magnet 3 and the second permanent magnet 4 are parallel to each other, and the first permanent magnet 3 and the second permanent magnet 4 are partially arranged opposite each other in the extension direction perpendicular to the extension direction of the first permanent magnet 3 and the second permanent magnet 4.

[0041] Since the first permanent magnet 3 and the second permanent magnet 4 are parallel to each other and only partially opposite each other, when the second permanent magnet 4 moves with the shell 2, whether it moves along the extension direction of the first permanent magnet 3 and the second permanent magnet 4 or along the direction where the extension directions of the first permanent magnet 3 and the second permanent magnet 4 intersect, the strength of the magnetic field formed between the first permanent magnet 3 and the second permanent magnet 4 will change. This will change the tightness of the arrangement between the molecules of the magnetofluid in the magnetic field, that is, the arrangement between the molecules of the magnetofluid will be reorganized multiple times. During the reorganization process, the friction between the molecules will convert the mechanical energy of the vibration into heat energy, thereby achieving the effect of vibration reduction.

[0042] Optionally, both the first permanent magnet 3 and the second permanent magnet 4 include multiples, and are arranged alternately along the first direction. The first direction is not further limited here. In some examples, the first direction is the direction extending along one side of the mounting plate 5, and in other examples, the first direction may also be the direction extending circumferentially along the mounting plate 5.

[0043] By arranging multiple first permanent magnets 3 and multiple second permanent magnets 4 in the order of first permanent magnet 3, second permanent magnet 4, first permanent magnet 3, second permanent magnet 4, since the polarities of the opposite faces of the first permanent magnets 3 and the second permanent magnets 4 are opposite, a magnetic field can be formed between any two adjacent permanent magnets, which increases the magnetic field strength in the containment space and enhances the effect of the magnetic field on the magnetohydrodynamic fluid.

[0044] Specifically, such as Figure 1 As shown, when multiple second permanent magnets 4 follow the shell 2 along the extension direction perpendicular to the second permanent magnet 4, the distance between each second permanent magnet 4 and the first permanent magnet 3 on the left side of the figure increases, and the distance between each second permanent magnet 4 and the first permanent magnet 3 on the right side of the figure decreases. That is, the magnetic field strength formed between each second permanent magnet 4 and the two adjacent first permanent magnets 3 changes. The viscosity of the magnetofluid in the corresponding two magnetic fields needs to change. That is, the arrangement of the molecules of the magnetofluid needs to be reorganized multiple times. During the reorganization process, the friction between molecules converts the mechanical energy of vibration into heat energy, thereby achieving the effect of vibration reduction. When multiple second permanent magnets 4 follow the shell 2 along the extension direction parallel to the second permanent magnets 4, the relative area between each second permanent magnet 4 and the two adjacent first permanent magnets 3 increases. Therefore, the magnetic field strength formed between each second permanent magnet 4 and the two adjacent first permanent magnets 3 increases. Consequently, the viscosity of the magnetofluid in each magnetic field increases, thereby increasing the flow resistance of the magnetofluid to improve the obstruction effect on vibration transmission. At the same time, the arrangement of molecules in the magnetofluid in each magnetic field needs to be reorganized multiple times to exhibit sufficient viscosity. During the reorganization process, the friction between molecules converts the mechanical energy of vibration into heat energy, thereby also achieving the vibration reduction effect.

[0045] Optionally, the vibration damping structure provided in this application embodiment also includes a rubber component 6, and the mounting plate 5 is elastically connected to the housing 2 through the rubber component 6.

[0046] Optionally, the rubber component 6 extends circumferentially along the mounting plate 5; the mounting plate 5 and the rubber component 6 divide the accommodating space into a first cavity 21 and a second cavity 22, and the mounting plate 5 is provided with a through hole 51, which connects the first cavity 21 and the second cavity 22; wherein, when the cylinder 1 vibrates, the magnetofluid flows between the first cavity 21 and the second cavity 22 through the through hole 51.

[0047] By extending the rubber component 6 along the circumference of the mounting plate 5, an elastic connection is achieved between the mounting plate 5 and the housing 2. Furthermore, the mounting plate 5 divides the accommodating space into two independent cavities: a first cavity 21 and a second cavity 22. These cavities are connected by a through-hole 51. When the housing 2 moves with the cylinder 1, the magnetic fluid flows within the first and second cavities 21 and 22. Because the cross-section at the through-hole 51 is small, the friction between the inner wall of the through-hole 51 and the magnetic fluid is greater, improving the vibration reduction effect at the through-hole 51. Simultaneously, during the flow of the magnetic fluid, friction is generated between the molecules of the magnetic fluid, and between the magnetic fluid and the side walls of the first and second cavities 21 and 22. This friction converts the mechanical energy of the vibration into heat energy, achieving a vibration reduction effect.

[0048] The inner diameter of the through hole 51 is not further limited here. Preferably, the inner diameter of the through hole 51 is much smaller than the cross-sectional length of the first cavity 21 and the second cavity 22.

[0049] Optionally, the through holes 51 include a plurality of holes spaced apart on the mounting plate 5. Increasing the number of through holes 51 increases the friction between the magnetofluid and the through holes 51, thereby improving the vibration reduction effect.

[0050] The shape of the through hole 51 is not further limited here. In some examples, the through hole 51 is columnar and the inner diameter is equal everywhere along the extension direction; in other examples, the through hole 51 is columnar and the inner diameter gradually increases along the extension direction; in other examples, the through hole 51 is columnar and the inner diameter gradually decreases along the extension direction; in other examples, the through hole 51 is funnel-shaped.

[0051] Optionally, the vibration damping structure provided in this embodiment further includes a spring 7, which connects the mounting plate 5 and the housing 2. By providing the spring 7 between the mounting plate 5 and the housing 2, the elastic connection between the mounting plate 5 and the housing 2 is further improved, the hysteresis of the relative motion between the mounting plate 5 and the housing 2 is increased, thereby increasing the rate of change of the relative displacement between the first permanent magnet 3 and the second permanent magnet 4, increasing the rate of change of the viscosity of the magnetofluid, and thus improving the vibration damping effect.

[0052] Furthermore, there may be multiple springs 7. In some examples, the extension direction of the spring 7 is parallel to the thickness direction of the mounting plate 5; in other examples, the extension direction of the spring 7 intersects the thickness direction of the mounting plate 5.

[0053] This application also provides a garment processing device, including a cylinder 1 and a vibration damping structure as described above. For some examples, please refer to... Figure 4 , Figure 4 This is another schematic diagram of the clothing processing device provided in the embodiments of this application. The clothing processing device can be a drum washing machine; in other examples, please refer to... Figure 3 , Figure 3 This is a schematic diagram of a garment processing device provided in an embodiment of this application. The garment processing device can be a pulsator washing machine.

[0054] Optionally, please refer to Figure 2 , Figure 2 This is a schematic diagram of the installation of the vibration damping structure provided in an embodiment of this application. The vibration damping structure includes multiple structures, which are distributed at intervals along the circumference of the cylinder 1. Furthermore, the multiple vibration damping structures are evenly distributed along the circumference of the cylinder 1.

[0055] Optionally, the garment processing equipment also includes a motor, which is disposed on the outer periphery of the cylinder 1. The vibration damping structure includes an odd number of structures, one of which is symmetrically disposed on the outer periphery of the cylinder 1 with the motor, and the remaining vibration damping structures are symmetrically disposed on the outer periphery of the cylinder 1 in pairs, thereby achieving uniform weight distribution on the outer periphery of the cylinder 1 and adaptively absorbing the vibration generated by the cylinder 1 in various directions, further improving the vibration damping effect and reducing noise.

[0056] Optionally, the housing 2 can be a counterweight for the drum 1, that is, the counterweight is integrated with the vibration damping structure, saving installation space inside the washing machine.

[0057] Furthermore, the counterweight may include a first block and a second block, with a receiving space formed between the first block and the second block. The first block and the second block are connected and fixed to the outer periphery of the cylinder 1 by screws. Specifically, the cylinder 1 includes an outer cylinder and an inner cylinder, and the first block and the second block are fixed to the outer periphery of the outer cylinder.

[0058] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0059] The vibration damping structure and clothing processing equipment provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A vibration damping structure applied to a garment processing device, the garment processing device comprising a cylinder, characterized in that, The vibration damping structure includes: A shell is disposed on the outer periphery of the cylinder, and the shell has an internal receiving space filled with a magnetorheological fluid; A first permanent magnet is disposed within the accommodating space; A second permanent magnet is disposed within the receiving space. The second permanent magnet is at least partially opposite to the first permanent magnet, and the opposing portions have opposite polarities and form a magnetic field. The magnetofluid is used to impede the transmission of vibration under the action of the magnetic field.

2. The vibration reduction structure according to claim 1, characterized in that, It also includes a mounting plate, which is disposed within the receiving space and is elastically connected to the housing; The first permanent magnet is connected to the mounting plate, and the second permanent magnet is connected to the housing; When the cylinder vibrates, the second permanent magnet moves relative to the first permanent magnet to change the viscosity of the magnetic fluid at various points within the containment space.

3. The vibration reduction structure according to claim 2, characterized in that, The first permanent magnet and the second permanent magnet extend in parallel directions, and in directions perpendicular to their extension, the first permanent magnet and the second permanent magnet are partially opposite to each other.

4. The vibration reduction structure according to claim 2, characterized in that, Both the first permanent magnet and the second permanent magnet comprise multiple units, which are arranged alternately along the first direction.

5. The vibration reduction structure according to claim 2, characterized in that, It also includes a rubber component, through which the mounting plate is elastically connected to the housing.

6. The vibration reduction structure according to claim 5, characterized in that, The rubber component extends circumferentially along the mounting plate; The mounting plate and the rubber component divide the accommodating space into a first cavity and a second cavity. The mounting plate is provided with a through hole, which connects the first cavity and the second cavity. When the cylinder vibrates, the magnetofluid flows between the first cavity and the second cavity through the through hole.

7. The vibration reduction structure according to claim 6, characterized in that, The through holes include multiple holes and are spaced apart on the mounting plate.

8. The vibration reduction structure according to claim 2, characterized in that, It also includes a spring that connects the mounting plate and the housing.

9. A garment processing device, characterized in that, It includes the cylinder and the vibration damping structure as described in any one of claims 1-8.

10. The garment processing equipment according to claim 9, characterized in that, The vibration damping structure includes multiple structures, and the multiple vibration damping structures are distributed at intervals along the circumference of the cylinder.

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