Damping foot pad and household appliance
By using sealing cavity and bushing structures of different materials in the shock absorbing foot pads of home appliances, the vibration absorption is absorbed by using natural frequency differences, the problem of poor shock absorption effect in the prior art is solved, and more effective noise reduction and Vibration control.
Patent Information
- Application Number
- CN202420499612.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-14
AI Technical Summary
The shock-absorbing foot pads of existing home appliances are not effective in reducing noise and cannot effectively absorb and buffer vibration and noise during the operation of the compressor.
Using a shock absorbing foot pad design including different materials, the vibration is coupled and absorbed by the provision of the first shock absorbing material and the second shock absorbing material in the sealing cavity, using their natural frequency differences, and further enhanced by the bushing and through-hole structure. Shock absorption effect.
By repeatedly impacting vibration, the vibration energy is significantly weakened, the vibration absorption and noise reduction effect of home appliances is improved, the service life is extended, and the production cost is reduced.
Smart Images
Figure CN222277906U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of household appliances, and in particular to a shock-absorbing foot pad, and a household appliance containing the shock-absorbing foot pad. Background Art
[0002] The compressor is an important structure of household appliances, but the noise generated by the compressor during operation is relatively high, which results in a relatively high noise level in the household appliances, affecting the user experience. At present, the compressors of household appliances generally use four rubber pads installed at the machine feet to reduce vibration and noise. The compressor is fixed to the base plate of the compressor by bolts, bushings and other fasteners. When the compressor is running, the movement of the internal motor causes the compressor housing to vibrate. At this time, the vibration is buffered by the soft rubber pads, and then transmitted to the base plate of the compressor, and the vibration is diffused through the main body of the household appliance connected to the base plate of the compressor.
[0003] The shock-absorbing and noise-reducing effects of the shock-absorbing foot pads still need to be further improved. Utility Model Content
[0004] In view of this, the purpose of the present application is to provide a shock-absorbing foot pad and household appliance to improve the problem of poor shock-absorbing and noise-reducing effects of the shock-absorbing foot pad in the related art.
[0005] The technical solution adopted by this application to solve the above technical problems is:
[0006] In the first aspect, the present application provides a shock-absorbing foot pad, including a foot pad body, the material of the foot pad body is a first shock-absorbing material; the foot pad body has matching through holes and a sealed cavity isolated from each other, a second shock-absorbing material is arranged in the sealed cavity, and the first shock-absorbing material and the second shock-absorbing material are different.
[0007] Optionally, in some embodiments of the present application, the first shock-absorbing material includes an elastic material, and the elastic material includes rubber, plastic, and silicone;
[0008] The second shock-absorbing material is a liquid material, and the liquid material includes water and grease.
[0009] Optionally, in some embodiments of the present application, the shock-absorbing foot pad further includes a bushing, which is embedded in the matching through hole, and the outer surface of the bushing is fitted to the hole wall of the matching through hole.
[0010] Optionally, in some embodiments of the present application, the material of the bushing includes a third shock-absorbing material, and the third shock-absorbing material is different from the first shock-absorbing material and the second shock-absorbing material.
[0011] Optionally, in some embodiments of the present application, the third shock-absorbing material includes a rigid material, and the rigid material includes metal.
[0012] Optionally, in some embodiments of the present application, a notch portion is provided on the bushing, and the notch portion penetrates the bushing along an extension direction of the bushing.
[0013] Optionally, in some embodiments of the present application, the bushing and the foot pad body are integrally formed.
[0014] Optionally, in some embodiments of the present application, the foot pad body includes a main body portion and a lower support portion connected in sequence from top to bottom, and a through hole is formed by penetrating the main body portion to form a first hole segment, and a through hole is formed by penetrating the lower support portion to form a second hole segment, the outer diameter of the lower support portion is larger than the outer diameter of the main body portion, and the aperture of the second hole segment is larger than the aperture of the first hole segment.
[0015] Optionally, in some embodiments of the present application, the foot pad body includes an upper flange portion, a connecting neck portion and a main body portion connected in sequence from top to bottom, the lower surface of the upper flange portion, the connecting neck portion and the upper surface of the main body portion are combined to form an installation slot, and the matching through holes penetrate the upper flange portion, the connecting neck portion and the main body portion in sequence.
[0016] In a second aspect, the present application also provides a household appliance, including an appliance body and a vibration device, wherein the vibration device is mounted on the appliance body via the above-mentioned shock-absorbing foot pads.
[0017] In summary, due to the adoption of the above technical solution, this application has at least the following beneficial effects:
[0018] The shock-absorbing foot pad provided in the present application couples the vibration generated by the vibration device by setting a material different from the foot pad body in a sealed cavity and utilizing the different natural frequencies of the first shock-absorbing material and the second shock-absorbing material, so that the vibration is offset multiple times in the shock-absorbing foot pad, thereby weakening the vibration energy and achieving the purpose of shock absorption and noise reduction. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments are briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present application, but are not intended to limit the present application, wherein:
[0020] Figure 1 A front view of a shock-absorbing foot pad provided in an embodiment of the present application;
[0021] Figure 2 for Figure 1 The cross-sectional view along the AA direction;
[0022] Figure 3 A top view of a shock-absorbing foot pad provided in an embodiment of the present application;
[0023] Figure 4 for Figure 3 The cross-sectional view along the BB direction;
[0024] Figure 5 A schematic diagram of the structure of the bushing provided in an embodiment of the present application.
[0025] Description of reference numerals:
[0026] Shock-absorbing foot pads 100;
[0027] The foot pad body 10; the lower support portion 11; the main body 12; the connecting neck 13; the upper flange portion 14; the matching through hole 20; the first hole section 21; the second hole section 22; the sealing cavity 30; the bushing 40; the notch portion 41; and the mounting slot 50. DETAILED DESCRIPTION
[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 described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.
[0029] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a unique orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.
[0030] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described in this application as exemplary is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles disclosed in the present application.
[0031] To facilitate understanding of the scheme of the present application, the spline curves and arrows used in the drawings are explained here: the components indicated by the spline curves without arrows are solid components, that is, components with solid structures; the components indicated by the spline curves with arrows are virtual components, that is, components without solid structures.
[0032] See also Figures 1 to 4 The embodiment of the present application provides a shock-absorbing foot pad 100, including a foot pad body 10, the material of the foot pad body 10 is a first shock-absorbing material; the foot pad body 10 has a matching through hole 20 and a sealed cavity 30 that are isolated from each other, and a second shock-absorbing material is arranged in the sealed cavity 30, and the first shock-absorbing material and the second shock-absorbing material are different.
[0033] It should be noted that the first shock-absorbing material and the second shock-absorbing material are not only different, but also no chemical reaction occurs between the first shock-absorbing material and the second shock-absorbing material, so as to ensure the stability of the shock-absorbing foot pad 100 and extend the service life of the shock-absorbing foot pad 100 .
[0034] The shock-absorbing foot pad 100 provided in the present application couples the vibration generated by the vibration device by arranging a material different from the foot pad body 10 in the sealed cavity 30 and utilizing the different natural frequencies of the first shock-absorbing material and the second shock-absorbing material, so that the vibration is offset multiple times in the shock-absorbing foot pad 100, thereby weakening the vibration energy and achieving the purpose of shock absorption and noise reduction.
[0035] It should be noted that the natural frequency of a material refers to the natural vibration frequency generated by the free movement of the material without any external force. The natural frequency of a material is closely related to the mass, size, density, and material of the material. By controlling the first damping material to be different from the second damping material, their natural frequencies are ensured to be different.
[0036] In some embodiments, the second shock-absorbing material can fill the entire sealed cavity 30 to stabilize the center of gravity of the shock-absorbing foot pad 100, reduce vibration, and absorb noise. In other embodiments, the second shock-absorbing material can fill a portion of the sealed cavity 30, so that there is still air in the sealed cavity 30. The air is different from the first shock-absorbing material and the second shock-absorbing material, and can strengthen the coupling of the vibration generated by the vibration device, further improving the effect of shock absorption and noise reduction.
[0037] In some embodiments, the first shock-absorbing material includes an elastic material. The shock-absorbing foot pad 100 is made of an elastic material, which is conducive to installing the shock-absorbing foot pad 100 on a vibration device that needs to reduce shock and noise, and has the function of buffering vibration.
[0038] Furthermore, the elastic material includes rubber, plastic, and silicone.
[0039] For example, the rubber may be butyl rubber, styrene-butadiene rubber, butadiene rubber, isoprene rubber, ethylene-propylene rubber, chloroprene rubber, nitrile rubber, etc. Rubber has good heat resistance, corrosion resistance, aging resistance, flame resistance and electrical insulation, high safety, and is conducive to improving the service life of the shock-absorbing foot pad 100.
[0040] The plastic may be polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyamide, polyurethane, polyphenylene ether ester, polycarbonate, polymethyl-1-pentene, styrene / butadiene / acrylonitrile copolymer, ethylene / vinyl alcohol copolymer, etc. The plastic has good insulation properties against electricity, heat, and sound, especially excellent sound insulation, sound absorption, vibration absorption, and noise reduction properties, and can effectively improve the vibration reduction and noise reduction effect of the shock-absorbing foot pad 100.
[0041] Silicone has good thermal stability, stable chemical properties, high mechanical strength, and an open porous structure, which is good for buffering vibrations and absorbing noise.
[0042] In some embodiments, the second shock absorbing material is a liquid material.
[0043] Furthermore, the liquid material includes water and grease. The liquid material can not only couple the vibration to reduce noise by using its natural frequency different from that of the first damping material, but also has a certain sound absorption effect. For example, when the liquid material is water, the surface tension between water molecules can produce a buffering effect, which helps to reduce the propagation of sound energy, thereby reducing the intensity of noise.
[0044] See also Figure 5 In some embodiments, the shock-absorbing foot pad 100 further includes a bushing 40 , which is embedded in the matching through hole 20 , and the outer surface of the bushing 40 is fitted to the hole wall of the matching through hole 20 .
[0045] In some embodiments, the material of the bushing 40 includes a third damping material, and the third damping material is different from the first damping material and the second damping material. In this way, the natural frequencies of the first damping material, the second damping material and the third damping material are different, so that the vibration generated by the vibration device can be offset multiple times in the vibration foot pad, further improving the effect of damping and noise reduction.
[0046] In some embodiments, the third shock-absorbing material includes a rigid material. The bushing 40 made of the rigid material can enhance the stability of the foot pad body 10 .
[0047] Furthermore, the rigid material includes metal, such as steel and the like.
[0048] In some embodiments, a notch 41 is provided on the bushing 40, and the notch 41 penetrates the bushing 40 along the extension direction of the bushing 40. In this way, the contact area between the bushing 40 and the shock-absorbing foot pad 100 can be reduced, the vibration from the shock-absorbing foot pad 100 to the bushing 40 can be weakened, and the shock-absorbing effect can be improved.
[0049] In some embodiments, the bushing 40 and the foot pad body 10 are integrally formed, so that the installation process can be reduced and the connection between the bushing 40 and the foot pad body 10 can be more firmly and stably made.
[0050] In some embodiments, the foot pad body 10 includes a main body 12 and a lower support portion 11 connected in sequence from top to bottom, and the outer diameter of the lower support portion 11 is larger than the outer diameter of the main body 12. The lower support portion 11 has a larger outer diameter, which can increase the size of the bottom periphery of the shock-absorbing foot pad 100, thereby increasing the assembly contact area, enhancing the stability after assembly, and reducing the defects of the shock-absorbing foot pad 100 being twisted, tilted and deformed after being compressed.
[0051] In some embodiments, the through hole 20 penetrates the main body 12 to form a first hole section 21, and penetrates the lower support portion 11 to form a second hole section 22, and the diameter of the second hole section 22 is larger than the diameter of the first hole section 21. In this way, the vibration transmitted from the bottom of the shock-absorbing foot pad 100 to the main body 12 can be reduced, and the amount of the first shock-absorbing material can be saved, thereby reducing the production cost.
[0052] In some embodiments, the foot pad body 10 includes an upper flange portion 14, a connecting neck portion 13 and a main body portion 12 which are sequentially connected from top to bottom, and the lower surface of the upper flange portion 14, the connecting neck portion 13 and the upper surface of the main body portion 12 enclose a mounting slot 50, and the matching through hole 20 sequentially penetrates the upper flange portion 14, the connecting neck portion 13 and the main body portion 12. The mounting slot 50 can be engaged with the connecting portion of the vibration device to achieve the purpose of reducing the vibration of the vibration device.
[0053] Furthermore, the outer diameter of the upper flange 14 is smaller than the outer diameter of the main body 12. In this way, it is convenient to penetrate the connecting portion of the vibration device through the upper flange 14 to realize the assembly of the shock-absorbing foot pad 100 and the vibration device.
[0054] In some embodiments, the sealed cavity 30 is located in the main body 12. It can be understood that the sealed cavity 30 is located in the middle area of the entire foot pad body 10, and the vibration, whether from top to bottom or from outside to inside, can be quickly transmitted through the first shock-absorbing material to reach the sealed cavity 30 and be absorbed by the second shock-absorbing material, thereby achieving the purpose of rapid shock absorption and noise reduction.
[0055] In some embodiments, the outer surface of the bushing 40 is arranged to fit the hole wall of the matching through hole 20 in the main body 12 and the connecting neck 13. The connecting neck 13 is mainly used for clamping with the vibration device, and the bushing 40 of the rigid material can enhance the stability of the clamping. The main body 12 is the main area for shock absorption and noise reduction, and the bushing 40 can further improve the shock absorption and noise reduction effect of the main body 12.
[0056] On the second aspect, the present application also provides a household appliance, including an appliance body and a vibration device, wherein the vibration device is installed on the appliance body via the above-mentioned shock-absorbing foot pad 100.
[0057] In some embodiments, the household appliance may be a refrigerator, an air conditioner, a washing machine, etc. The household appliance includes a vibration device, and the vibration device may be a compressor or other device.
[0058] The embodiment of the present application is described by taking a refrigerator and a compressor on the refrigerator as an example. Specifically, the box body includes a bottom plate, and a shock-absorbing foot pad 100 is provided on the compressor, and the compressor is arranged at a predetermined position on the bottom plate through the shock-absorbing foot pad 100.
[0059] In some embodiments, the bottom of the compressor is provided with a foot, and a connection hole for setting the shock-absorbing foot pad 100 is correspondingly opened on the foot. The upper flange portion 14 of the shock-absorbing foot pad 100 passes through the connection hole, so that the installation slot 50 is engaged with the connection hole, and the lower support portion 11 of the shock-absorbing foot pad 100 is fixed to the bottom plate. In this way, the shock-absorbing foot pad 100 is arranged between the bottom plate of the refrigerator and the foot of the compressor, so as to achieve the purpose of shock reduction and noise reduction through the shock-absorbing foot pad 100.
[0060] It should be noted that four shock-absorbing pads 100 are generally arranged at the bottom of the compressor. The four shock-absorbing pads 100 are symmetrically arranged in pairs, which can not only reduce the vibration and noise of the compressor, but also play a role in supporting and fixing the compressor.
[0061] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.
Claims
1. A shock-absorbing foot pad, characterized in that: It includes a foot pad body, the material of the foot pad body is a first shock-absorbing material; the foot pad body has a matching through hole and a sealed cavity that are isolated from each other, and a second shock-absorbing material is arranged in the sealed cavity, and the first shock-absorbing material and the second shock-absorbing material are different.
2. The shock-absorbing foot pad according to claim 1, characterized in that: The first shock-absorbing material includes an elastic material, and the elastic material includes rubber, plastic, and silicone; The second shock-absorbing material is a liquid material, and the liquid material includes water and grease.
3. The shock-absorbing foot pad according to claim 1, characterized in that: The shock-absorbing foot pad also includes a bushing, which is embedded in the matching through hole, and the outer surface of the bushing is fitted with the hole wall of the matching through hole.
4. The shock-absorbing foot pad according to claim 3, characterized in that: The material of the bushing includes a third shock-absorbing material, and the third shock-absorbing material is different from the first shock-absorbing material and the second shock-absorbing material.
5. The shock-absorbing foot pad according to claim 4, characterized in that: The third shock-absorbing material includes a rigid material, and the rigid material includes metal.
6. The shock-absorbing foot pad according to claim 3, characterized in that: The bushing is provided with a notch portion, and the notch portion penetrates the bushing along an extending direction of the bushing.
7. The shock-absorbing foot pad according to any one of claims 3 to 6, characterized in that: The bushing and the foot pad body are integrally formed.
8. The shock-absorbing foot pad according to claim 1, characterized in that: The foot pad body includes a main body and a lower support part connected in sequence from top to bottom, the matching through hole penetrates the main body to form a first hole section, and penetrates the lower support part to form a second hole section, the outer diameter of the lower support part is larger than the outer diameter of the main body, and the aperture of the second hole section is larger than the aperture of the first hole section.
9. The shock-absorbing foot pad according to claim 1, characterized in that: The foot pad body includes an upper flange portion, a connecting neck portion and a main body portion which are connected in sequence from top to bottom. The lower surface of the upper flange portion, the connecting neck portion and the upper surface of the main body portion are combined to form a mounting slot, and the matching through hole passes through the upper flange portion, the connecting neck portion and the main body portion in sequence.
10. A household appliance, characterized in that: The device comprises a device body and a vibration device, wherein the vibration device is mounted on the device body via the shock-absorbing foot pad as claimed in any one of claims 1 to 9.