Damping device and clothes processing equipment

By using a fixed layer, an elastic layer, and a mass layer to form a resonant layer structure in the dryer, and combining it with a damping layer, the problems of large vibration and high low-frequency noise in the dryer are solved, effectively reducing vibration and noise and enhancing the product's market competitiveness.

CN121183545APending Publication Date: 2025-12-23QINGDAO JIAONAN HAIER WASHING MACHINE CO LTD +1
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Patent Information

Application Number
CN202410767476.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-06-14
Publication Date
2025-12-23

AI Technical Summary

Technical Problem

Existing dryers suffer from excessive vibration and low-frequency noise during operation, which negatively impacts user experience and market positioning.

Method used

A resonant layer structure is formed by using a fixed layer, an elastic layer, and a mass layer, combined with a damping layer, to reduce vibration and noise through resonance and energy dissipation.

Benefits of technology

It effectively reduces vibration and noise from vibration sources, enhancing product competitiveness and user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of vibration damping devices, in particular to a vibration damping device and clothes processing equipment, and aims to solve the problem that a large amount of low-frequency noise is generated when vibration equipment runs in the prior art. In order to achieve the purpose, the damping device comprises a fixing layer, a damping layer and a damping layer, the fixing layer is used for being connected with a vibration source, and the vibration source is transmitted through the fixing layer; the invention relates to a vibration damping device which comprises a fixing layer, an elastic layer and a mass layer, the elastic layer and the mass layer are sequentially arranged in the vibration transmission direction, the elastic layer and the mass layer form a resonance layer structure, the number of the resonance layer structure is at least one in the vibration transmission direction, and the fixing layer is connected with the elastic layer on the innermost side. After the vibration is transmitted to the resonance layer structure, the elastic layer transmits the vibration to the mass layer; causing vibration of the mass layer such that the elastic layer is compressed or stretched; afterwards, the elastic force of the elastic layer enables the mass layer to reset, reciprocating vibration of the mass layer is formed, vibration energy is consumed, and a good vibration reduction effect is achieved.
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Description

Technical Field

[0001] This invention relates to the field of vibration damping device technology, specifically providing a vibration damping device and clothing processing equipment. Background Technology

[0002] A clothes dryer is a household appliance that uses electric heating to instantly evaporate and dry the moisture in washed clothes. Most common household clothes dryers are tumble dryers. The working principle of a tumble dryer is: by heating the flowing air, the hot air evaporates the moisture on the clothes, and at the same time, the rotation of the tumble dryer allows all parts of the clothes to dry evenly.

[0003] During the operation of a dryer, the fixed-frequency motor experiences significant vibration at its operating frequency multiples, resulting in large amplitude vibrations. This is particularly problematic as it causes loud low-frequency noise in the dryer, leading to complaints from users and impacting the market positioning of existing products.

[0004] Accordingly, there is a need in the field for a new vibration damping device to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem of generating a large amount of low-frequency noise during the operation of vibration equipment in the prior art.

[0006] In a first aspect, the present invention provides a vibration damping device, the vibration damping device comprising:

[0007] A fixing layer, wherein the fixing layer is used to connect a vibration source and the vibration source is transmitted through the fixing layer;

[0008] An elastic layer and a mass layer are arranged sequentially along the direction of vibration transmission, and the elastic layer and the mass layer form a resonant layer structure. The resonant layer structure is at least one layer along the direction of vibration transmission, and the fixed layer is connected to the innermost elastic layer.

[0009] In a specific embodiment having the above-mentioned vibration damping device, the vibration damping device further includes:

[0010] A damping layer is disposed on the outermost resonant layer structure and is connected to the mass layer.

[0011] In a specific embodiment with the above-mentioned vibration damping device, the fixing layer and the mass layer are arranged coaxially.

[0012] In a specific embodiment of the above-mentioned vibration damping device, the vibration source is a motor, the fixing layer is a rod, the elastic layer covers part of the fixing layer, and the other part of the fixing layer is connected to the outer shell of the motor. The axial direction of the fixing layer is set at an angle with the axial direction of the output shaft of the motor.

[0013] In a specific embodiment with the above-mentioned vibration damping device, the included angle is 100° to 120°.

[0014] In a specific embodiment of the above-mentioned vibration damping device, the hardness of the elastic layer is 36HA to 44HA.

[0015] In a specific embodiment with the above-mentioned vibration damping device, the mass layer is 10% to 30% of the total mass of the motor.

[0016] In a specific embodiment of the above-mentioned vibration damping device, the elastic layer, the mass layer, and the damping layer are all circular cylindrical structures.

[0017] The present invention also proposes a garment processing device, which includes a motor and a vibration damping device as described in any of the above-described embodiments mounted on the motor.

[0018] In a specific embodiment of the above-mentioned garment processing equipment, the motor includes a housing, an output shaft, and a cantilever shaft. The output shaft is rotatably disposed within the housing, the cantilever shaft is disposed on the housing and is drively connected to the output shaft, and the fixing layer is connected to the housing.

[0019] With the above technical solution, this invention can be connected to the vibration source via a fixed layer. When the vibration source vibrates, the fixed layer can transmit the vibration to the elastic layer. After the vibration is transmitted from the fixed layer, it will spread outward from the fixed layer. The elastic layer and the mass layer are arranged sequentially along the direction of vibration dispersion, and together they form a resonant layer structure. When the vibration is transmitted to the resonant layer structure, the elastic layer transmits the vibration to the mass layer, causing the mass layer to vibrate, which compresses or stretches the elastic layer. Then, the elastic force of the elastic layer causes the mass layer to return to its original position, forming a reciprocating vibration of the mass layer, which consumes the vibration energy and achieves a good vibration reduction effect. The resonant layer structure can be set in multiple layers to match different vibration frequencies, thereby achieving different vibration reduction effects and reducing the noise caused by the vibration of the vibration source. This invention has a simple structure and is easy to install, using the resonant layer structure to reduce the vibration of the vibration source itself. On the other hand, it can use the damping layer to further consume the vibration energy of the vibration absorption device, further reducing the vibration of the vibration source, and can effectively improve the low-frequency noise of clothing processing equipment, enhancing product competitiveness. Attached Figure Description

[0020] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0021] Figure 1 This is an isometric structural diagram of the vibration damping device in this invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the vibration damping device in this invention; it shows the internal multi-layer structure.

[0023] Figure 3 This is a schematic diagram of the motor structure of the clothing processing device in this invention, showing the connection relationship between the motor and the vibration damping device.

[0024] Among them, 100 is the fixed layer, 200 is the resonant layer structure, 201 is the elastic layer, 202 is the mass layer, 300 is the damping layer, 400 is the motor, 500 is the outer shell, 600 is the output shaft, and 700 is the cantilever shaft. Detailed Implementation

[0025] The preferred embodiments of the present invention will now be described with reference to the accompanying drawings and, taking a motor as an example, a vibration source. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific applications. For example, although the specification describes the invention in conjunction with a motor, this is not limiting; those skilled in the art can apply the present invention to any other vibration source as needed, as long as the vibration source generates noise during operation.

[0026] It should be noted that in the description of this invention, terms such as "upper," "lower," "left," "right," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the relevant devices or elements must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, ordinal numbers such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] Furthermore, in order to more clearly demonstrate the core technical solution of the present invention, the description of the known structure of the motor and the clothing processing device is omitted in the following description. However, this omission is only for the convenience of description and does not mean that the motor and the clothing processing device can be without these structures.

[0029] like Figure 1-3 As shown, the present invention proposes a vibration damping device, which includes: a fixed layer 100 for connecting a vibration source and transmitting the vibration source through the fixed layer 100; an elastic layer 201 and a mass layer 202, wherein the elastic layer 201 and the mass layer 202 are arranged sequentially along the vibration transmission direction and form a resonance layer structure 200, wherein the resonance layer structure 200 is at least one layer along the vibration transmission direction, and the fixed layer 100 is connected to the innermost elastic layer 201.

[0030] First, the vibration damping device proposed in this invention can be used on various vibration sources. The concept is to make the vibration damping device resonate with the vibration source by adjusting the size parameters, number of combined layers, and external shape of different layers of the vibration damping device. The resonant layer structure 200 in the vibration damping device consumes the energy generated by the vibration, thereby reducing the noise caused by the vibration when the vibration source is running.

[0031] Specifically, in this embodiment, the core structure of the vibration damping device consists of a fixed layer 100, an elastic layer 201, and a mass layer 202. The fixed layer 100 is connected to the vibration source and its function is to transmit the vibration generated by the vibration source during operation. The fixed layer 100 is connected to the elastic layer 201, and the vibration is transmitted along the fixed layer 100 and diverges from the fixed layer 100 as the center, reaching the elastic layer 201. Along the direction of vibration transmission, a mass layer 202 is also provided in the elastic layer 201. The mass layer 202 has a certain weight. When the vibration is transmitted from the elastic layer 201 to the mass layer 202, it causes the mass layer 202 to vibrate. The elastic layer 201 and the mass layer 202 form a resonance layer structure 200, which causes the elastic layer 201 to be compressed or stretched. Then, the elastic force of the elastic layer 201 causes the mass layer 202 to return to its original position, forming a reciprocating vibration of the mass layer 202, which consumes the energy of the vibration and achieves a better vibration damping effect.

[0032] It should be noted that in some possible embodiments, the resonant layer structure 200 formed by the elastic layer 201 and the mass layer 202 may have more than one layer. Multiple resonant layer structures 200 can be configured according to the actual vibration frequency and intensity of the vibration source. Specifically, the inner elastic layer 201 of the first resonant layer structure 200 is connected to the fixed layer 100, and the outer layer is the mass layer 202. An additional elastic layer 201 and mass layer 202 can be wrapped around the mass layer 202, forming a multi-layered resonant layer structure 200. When the vibration source is running, the vibration is transmitted through the fixed layer 100, and the vibration is gradually dissipated through the successive resonant layer structures 200. The energy generated by the vibration will cause vibration in the mass layers 202 of each layer, thereby consuming the energy generated by the vibration.

[0033] It should be noted that in this embodiment, the fixed layer 100, elastic layer 201 and mass layer 202 are not defined in terms of their specific structures, but rather the structural arrangement between the fixed layer 100, elastic layer 201 and mass layer 202 is defined. This also reflects the inventive concept of the present invention. Therefore, based on the above inventive concept, any structure that transmits the vibration of the vibration source through the fixed layer 100 and uses the resonance layer structure 200 formed by the elastic layer 201 and mass layer 202 to consume the vibration energy should be understood as falling within the protection scope of the present invention.

[0034] In addition, the vibration damping device of the present invention can be installed on any vibration source that needs vibration reduction and noise reduction. As long as the vibration source generates vibration and noise during operation, the vibration energy can be consumed by the device of the present invention, thereby reducing the noise.

[0035] Based on the above embodiments, the damping device further includes a damping layer 300, which is disposed on the outermost resonant layer structure 200 and is connected to the mass layer 202.

[0036] The vibration damping device also includes a damping layer 300 fitted around the outside of the mass layer 202. The damping layer 300 is used to absorb and dissipate the vibration energy of the mass layer 202. The damping layer 300 can be a material and structure with damping properties. If the vibration of the mass layer 202 is directly transmitted outward through the air, although it can reduce the noise generated by the vibration source to a certain extent, it will still transmit vibration noise. Setting up the damping layer 300 to absorb the vibration transmitted outward from the mass layer 202 is beneficial to reducing the noise generated by the vibration source and also to improving the vibration damping effect.

[0037] It should be noted that the damping layer 300 can be added depending on actual needs. When the vibration frequency of the vibration source is high, the damping layer 300 can be set on the outermost resonant layer structure 200, that is, the damping layer 300 is wrapped on the outermost mass layer 202.

[0038] Based on the above embodiments, the fixing layer 100 and the mass layer 202 are arranged coaxially.

[0039] In this embodiment, the fixed layer 100 and the mass layer 202 are arranged coaxially, and both the fixed layer 100 and the mass layer 202 have their own axes. In order to make their axes collinear, the fixed layer 100 and the mass layer 202 are regular rotating bodies in this embodiment. However, this is not a limitation, because even if the axes of the fixed layer 100 and the mass layer 202 are not collinear, they can still absorb vibration energy and reduce noise. In this embodiment, if the fixed layer 100 and the mass layer 202 are regular rotating bodies as structural layers, on the one hand, the vibration transmission is more uniform when they are coaxial, the vibration energy is distributed evenly in each part, and the energy elimination effect is better; on the other hand, adopting a regular rotating body structure also facilitates the manufacture of the resonant layer structure 200.

[0040] Based on the above embodiments, the vibration source is a motor 400, the fixing layer 100 is a rod, the elastic layer 201 covers part of the fixing layer 100, and the other part of the fixing layer 100 is connected to the outer shell 500 of the motor 400. The axial direction of the fixing layer 100 is set at an angle with the axial direction of the output shaft 600 of the motor 400.

[0041] In this embodiment, the vibration source is taken as motor 400, especially short-shaft motor 400. Since short-shaft motor 400 transmits power through transmission and the output shaft 600 of motor 400 is not connected to a fan, short-shaft motor 400 has large vibration and noise.

[0042] In this embodiment, the fixing layer 100 adopts a rod structure, and the elastic layer 201 covers the fixing layer 100. The material of the elastic layer 201 can be natural rubber, which is connected to the fixing layer 100 by a vulcanization process. Similarly, the connection with the mass layer 202 can also be made by a vulcanization process. Of course, it is not limited to natural rubber and vulcanization connection process. It can be any material with elastic properties. For example, it can be any elastic structure such as a spring. The spring can be connected to the fixing layer 100 and the mass layer 202 by welding.

[0043] The fixing layer 100 is a rod structure, which can be a cylindrical rod or a prism rod. A portion of the cylindrical layer of the rod structure is embedded in the elastic layer 201, and the other portion is connected to the outer shell 500 of the motor 400. There are various ways to connect the cylindrical layer of the rod structure to the outer shell 500 of the motor 400, and no limitation is made in this embodiment. In a conceivable implementation, the part of the cylindrical layer of the rod that connects to the outer shell 500 of the motor 400 can be a threaded end, and the rod can be directly threaded onto the outer shell 500 of the motor 400; alternatively, the fixing layer 100 of the rod structure can pass through a through hole in the outer shell 500 of the motor 400, and then the fixing layer 100 of the rod can be locked with a nut; the fixing layer 100 can also be connected by welding or by an installation method that integrally cast with the outer shell 500.

[0044] The axial direction of the fixed layer 100 is at an angle to the axial direction of the output shaft 600 of the motor 400. The axial direction of the fixed layer 100 is the direction of the central axis of the rod structure, and the axial direction of the output shaft 600 of the motor 400 is the direction of the central axis of the output shaft 600 of the motor 400. It should be noted that the fixed layer 100 can be installed at any position on the housing 500 of the motor 400. However, when the axial direction of the fixed layer 100 is at a certain angle to the axis of the motor 400 shaft, when the vibration is transmitted to the elastic layer 201, the deformation of the elastic layer 201 caused by the vibration of the mass layer 202 will produce different degrees of deformation at different positions. Therefore, adjusting the angle between the axial direction of the fixed layer 100 and the axial direction of the output shaft 600 of the motor 400 according to the direction in which the vibration is most intense is more conducive to dissipating vibration energy.

[0045] Based on the above embodiments, the angle between the axial direction of the fixing layer 100 and the axial direction of the output shaft 600 of the motor 400 is 100° to 120°. For example, the angle between the axial direction of the fixing layer 100 and the axial direction of the output shaft 600 of the motor 400 can be 115°. In specific installation, an installation step can be provided on the housing 500 of the motor 400. During installation, the rod-shaped fixing layer 100 can be threadedly connected to the step, and the axis of the fixing layer 100 is installed at 90° with the installation plane of the step. The installation step can be preset with a certain angle, which is 25° in this embodiment, to satisfy the angle between the axial direction of the fixing layer 100 and the axial direction of the output shaft 600 of the motor 400 of 115°, thereby improving the installation accuracy.

[0046] Based on the above embodiments, the hardness of the elastic layer 201 is 36HA to 44HA, where HA is the Shore hardness unit, and the hardness of the elastic layer 201 can be selected as needed.

[0047] Based on the above embodiments, the mass layer 202 is 10% to 30% of the total mass of the motor 400, and the weight of the mass layer 202 can be selected as needed.

[0048] It should be noted that the hardness of the elastic layer 201 and the mass of the mass layer 202 affect the vibration frequency of the resonant layer structure 200, and thus the resonance with the motor 400. During the operation of the motor 400, the vibration of the motor 400 is larger when its frequency is a multiple of its natural frequency; if the vibration is larger at twice the natural frequency, then the main vibration frequency of the motor 400 is twice its natural frequency. When setting up the vibration damping device, the fixed frequency of the vibration damping device needs to be matched with the main vibration frequency of the motor 400, so that when the vibration of the motor 400 is large, the vibration of the vibration damping device is also large, achieving the best vibration damping effect.

[0049] The mass layer 202 accounts for 25% of the total mass of the motor 400, and the elastic layer 201 has a hardness of 40HA. The fixing layer 100 is made of metal, such as stainless steel, to quickly transmit vibrations from the motor 400 housing 500 to the fixing layer 100. The mass layer 202, also made of metal (such as stainless steel), ensures its own weight and dissipates vibrational energy through its reciprocating vibration. The elastic layer 201 can be made of high-polymer elastic materials such as rubber or silicone, or it can be a spring.

[0050] Based on the above embodiments, the elastic layer 201, the mass layer 202 and the damping layer 300 are all circular ring-cylinder structures.

[0051] In this embodiment, the elastic layer 201, the mass layer 202, and the damping layer 300 adopt a ring-shaped cylindrical structure. However, it should be noted that this is not a limitation. The elastic layer 201, the mass layer 202, and the damping layer 300 can also adopt other structural forms, such as regular rotating bodies or irregular layered structures, such as parallel stacked layer structures. The structural order between each layer can also be adjusted appropriately as needed.

[0052] In this embodiment, the elastic layer 201, the mass layer 202, and the damping layer 300 adopt a ring-shaped cylindrical structure. Specifically, the fixing layer 100 is a cylindrical rod with a threaded structure at one end for threaded connection with the motor 400 housing 500. It has a diameter of 5.5 mm and a length of 11 mm. The portion embedded in the elastic layer 201 has a diameter of 7.5 mm and a length of 44 mm. The elastic layer 201 is made of natural rubber and forms a ring-shaped cylindrical structure. The fixing layer 100 is inside. The dimensions of the elastic layer 201 are an inner diameter of 7.5 mm, an outer diameter of 16 mm, and a length of 22 mm. The mass layer 202 is outside the elastic layer 201 and is connected by a vulcanization process. The mass layer 202 is made of metal, specifically stainless steel, with an inner diameter of 16 mm, an outer diameter of 40 mm, and a length of 38 mm. In this embodiment, a damping layer 300 is provided. The damping layer 300 has an inner diameter of 40 mm, an outer diameter of 44 mm, and a length of 38 mm. The damping layer 300 is made of butyl synthetic rubber.

[0053] The dimensions described above are not limiting but exemplary. In possible embodiments, the fixed layer 100 is a cylindrical rod, the elastic layer 201 can be a ring-shaped cylindrical structure, the mass layer 202 is a spherical structure and is internally connected to the elastic layer 201, and the damping layer 300 is also a circular structure and is disposed outside the mass layer 202. The corresponding dimensions can be adjusted according to the vibration frequency of the actual motor 400.

[0054] The present invention also proposes a garment processing device, which includes a motor 400 and a vibration damping device as described in any of the above embodiments disposed on the motor 400. The motor 400 includes a housing 500, an output shaft 600, and a cantilever shaft 700. The output shaft 600 is rotatably disposed within the housing 500, and the cantilever shaft 700 is disposed on the housing 500 and is drively connected to the output shaft 600. The fixing layer 100 is connected to the housing 500.

[0055] In this embodiment, the clothing processing equipment can be a dryer, washing machine, washer-dryer combo, or garment care machine, etc. There is no limitation here; as long as the equipment includes a short-shaft motor 400 that generates significant vibration and noise, the vibration reduction device described above can be applied.

[0056] In some embodiments of this application, the motor 400 has a housing 500, an output shaft 600, and a cantilever shaft 700 for transmitting power. A pulley is provided on the cantilever shaft 700, and the output shaft 600 and the pulley are connected by a belt. The cantilever shaft 700 is connected to the housing 500. The power on the pulley is then transmitted through another belt. By setting up the cantilever shaft 700, a two-stage belt transmission is achieved. When the motor 400 is working, the vibration is greatest at the upper cantilever shaft 700, therefore a vibration damping device is installed and fixed near the cantilever shaft 700.

[0057] In some embodiments of this application, the housing 500 has a shell, an installation step extending outward along the shell, a cantilever shaft 700 fixed to the shell, and a vibration damping device mounted and fixed on the installation step. The installation direction of the vibration damping device is determined according to the main vibration direction at the installation step. The output shaft 600 may be parallel to the axis of the fixing layer 100 of the vibration damping device, or the axis of the output shaft 600 may be perpendicular to the axis of the fixing layer 100 of the vibration damping device, or the axis of the output shaft 600 may be at an angle to the axis of the vibration damping device.

[0058] The vibration damping device installed on the motor 400 may include a fixed layer 100, an elastic layer 201, a mass layer 202 and a damping layer 300, which are arranged from the inside to the outside. The fixed layer 100 adopts a circular rod, and the elastic layer 201, the mass layer 202 and the damping layer 300 adopt a circular ring column structure.

[0059] In this embodiment, the fixing layer 100 is fixed to the housing 500 of the motor 400, thus avoiding the influence of the vibration damping device on the pulley. The vibration of the motor 400 is transmitted to the housing 500, then to the fixing layer 100, and then to the resonant layer structure 200 through the elastic layer 201; this causes the mass layer 202 to vibrate, and the elastic layer 201 to be compressed or stretched; then the elastic force of the elastic layer 201 causes the mass layer 202 to return to its original position, forming a reciprocating vibration of the mass layer 202, so that the energy of the vibration is consumed, achieving a better vibration damping effect. In particular, the axial vibration of the mass layer 202 can form a regular reciprocating vibration, which is beneficial to increasing the vibration reduction capacity of the vibration damping device in the axial direction. The axial direction here refers to the axial direction of the vibration damping device. The mass layer 202 can also vibrate in the non-axial direction, which can play a role in vibration reduction and energy dissipation, but the axial vibration reduction effect is better. Therefore, the direction of the large vibration amplitude of the motor 400 should be aligned with the direction of the force generated during resonance to achieve a better vibration reduction effect. Therefore, the axis of the fixed layer 100 can be set at an angle to the output shaft 600 of the motor 400. The fixed layer 100 is set so that the vibration on the outer shell 500 is transmitted to the fixed layer 100. The elastic layer 201 transmits the vibration from the fixed layer 100 to the mass layer 202, and also plays a role in buffering the vibration and promoting the reciprocating vibration of the mass layer 202 to dissipate energy. The mass layer 202 is used to realize the reciprocating vibration to dissipate energy.

[0060] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A vibration damping device, characterized in that, The vibration damping device includes: A fixing layer (100) is used to connect a vibration source and the vibration source is transmitted through the fixing layer (100); An elastic layer (201) and a mass layer (202) are arranged sequentially along the direction of vibration transmission, and the elastic layer (201) and the mass layer (202) form a resonant layer structure (200). The resonant layer structure (200) is at least one layer along the direction of vibration transmission, and the fixed layer (100) is connected to the innermost elastic layer (201).

2. The vibration damping device according to claim 1, characterized in that, The shock absorption device also includes: A damping layer (300) is disposed on the outermost resonant layer structure (200) and is connected to the mass layer (202).

3. The vibration damping device according to claim 1, characterized in that, The fixing layer (100) and the mass layer (202) are arranged on the same axis.

4. The vibration damping device according to any one of claims 1 to 3, characterized in that, The vibration source is a motor (400), the fixing layer (100) is a rod, the elastic layer (201) covers part of the fixing layer (100), and the other part of the fixing layer (100) is connected to the outer shell of the motor (400). The axial direction of the fixing layer (100) is set at an angle with the axial direction of the output shaft of the motor (400).

5. The vibration damping device according to claim 4, characterized in that, The included angle is between 100° and 120°.

6. The vibration damping device according to claim 4, characterized in that, The hardness of the elastic layer (201) is 36HA to 44HA.

7. The vibration damping device according to claim 4, characterized in that, The mass of the mass layer (202) is 10% to 30% of the total mass of the motor (400).

8. The vibration damping device according to claim 1, characterized in that, The elastic layer (201), the mass layer (202), and the damping layer (300) are all circular ring-shaped structures.

9. A garment processing device, characterized in that, The garment processing equipment includes a motor (400) and a vibration damping device according to any one of claims 1 to 8 disposed on the motor (400).

10. The garment processing equipment according to claim 9, characterized in that, The motor (400) includes a housing (500), an output shaft (600), and a cantilever shaft (700). The output shaft (600) is rotatably disposed inside the housing (500), and the cantilever shaft (700) is disposed on the housing (500) and is connected to the output shaft (600) in a transmission manner. The fixing layer (100) is connected to the housing (500).