Sound insulation and vibration reduction structure and water purifier
By introducing a sound insulation and vibration reduction structure into the water purifier, and utilizing non-coaxial vibration isolation components, damping, and porous sound-absorbing layers, the problem of high noise in the water purifier is solved, achieving wide-band noise control, reducing operating noise, and improving the user experience.
Patent Information
- Application Number
- CN202422681501.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-04
AI Technical Summary
Existing water purifiers use only a single rubber pad between the pump and the casing for vibration isolation, resulting in poor noise reduction and loud operating noise that negatively impacts the user experience.
The sound insulation and vibration reduction structure includes a sound insulation cover, a first vibration isolation component and a second vibration isolation component. The sound insulation cover is equipped with a sound insulation layer. The first vibration isolation component and the second vibration isolation component are not coaxially arranged. Combined with a damping layer and a porous sound absorption layer, it can impede and absorb vibration energy and achieve wide-band noise control.
It effectively reduces low-frequency and mid-to-high-frequency noise of the water pump, reduces the operating noise of the water purifier, improves the user experience, and has a lower production cost.
Smart Images
Figure CN223498125U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vibration reduction structure technology, specifically providing a sound insulation and vibration reduction structure and a water purifier. Background Technology
[0002] Common household appliances such as water purifiers, washing machines, and dishwashers generate vibration and noise during operation due to their internal water pumps, affecting people's lives. Water purifiers, in particular, are used frequently, and people are more concerned about their noise levels; therefore, reducing the operating noise of water purifiers is essential.
[0003] Existing water purifiers consist of a housing, a water pump, and a rubber pad. The rubber pad is placed between the housing and the water pump's bracket, which is then bolted to the housing to install the water pump. However, using only a single rubber pad to isolate the vibration transmission path of the water pump is insufficient for noise reduction, resulting in relatively high operating noise and negatively impacting the user experience.
[0004] Accordingly, there is a need in this field for a new sound insulation and vibration reduction structure and a water purifier to solve the above problems. Utility Model Content
[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that the vibration transmission path of the water pump is isolated by only a single layer of rubber pad between the water pump and the housing, which is not effective in reducing the noise of the water pump, resulting in relatively loud operating noise of the water purifier and affecting the user experience.
[0006] In a first aspect, this utility model provides a sound insulation and vibration reduction structure; the sound insulation and vibration reduction structure includes a sound insulation cover, at least one first vibration isolation member and a second vibration isolation member, the vibration source is located inside the sound insulation cover, and a sound insulation layer is provided on the inner wall of the sound insulation cover;
[0007] The first vibration isolation member is disposed between the vibration source and the soundproof cover, and the second vibration isolation member is disposed on the outer wall of the soundproof cover, and the first vibration isolation member and the second vibration isolation member are not coaxially arranged.
[0008] By adopting the above technical solution, the first vibration isolator reduces the vibration energy transmitted from the vibration source to the soundproof cover, thus reducing the vibration of the soundproof cover. The second vibration isolator reduces the vibration energy transmitted from the soundproof cover to the installation position, thus reducing the vibration of the installation position. Furthermore, the non-coaxial arrangement of the first and second vibration isolators further hinders the transmission of vibration energy, reducing the vibration of both the vibration source and the installation position. By reducing the vibration of the vibration source, the low-frequency and mid-to-high-frequency noise emitted by the vibration source can be reduced. The soundproof cover can further hinder and absorb the mid-to-high-frequency noise emitted by the vibration source, thereby enabling the sound insulation and vibration reduction structure to achieve wide-band noise control of the vibration source, thereby reducing the operating noise of the water purifier.
[0009] In the preferred technical solution of the above-mentioned sound insulation and vibration reduction structure and water purifier, the first vibration isolation member includes a first foot pad; and / or
[0010] The second vibration isolator includes a second foot pad.
[0011] By adopting the above technical solution, using traditional vibration isolation components such as the first and second foot pads, the vibration energy transmitted from the vibration source to the soundproof cover and the installation position is reduced, thereby reducing the vibration of the vibration source, the soundproof cover and the installation position, thus reducing the operating noise of the water purifier, and the production cost is low.
[0012] In the preferred technical solution of the above-mentioned sound insulation and vibration reduction structure and water purifier, the sound insulation layer includes a damping layer and / or a porous sound-absorbing layer.
[0013] When the above technical solution is adopted, the propagation of mid-to-high frequency noise generated by the vibration source is blocked by the damping layer, and the mid-to-high frequency noise is absorbed and blocked by the porous sound-absorbing layer, so as to reduce the propagation of mid-to-high frequency noise.
[0014] In the preferred technical solution of the above-mentioned sound insulation and vibration reduction structure and water purifier, the thickness of the damping layer is 1.2-1.5 times the wall thickness of the sound insulation cover.
[0015] With the above technical solution, at this thickness ratio, the damping layer can better impede noise propagation and dissipate the vibration energy of the vibration source.
[0016] In the preferred technical solution of the above sound insulation and vibration reduction structure and water purifier, the thickness of the porous sound-absorbing layer is not less than 5mm.
[0017] When the above technical solution is adopted, the thickness of the porous sound-absorbing layer is not less than 5mm, so that the porous sound-absorbing layer can better absorb mid-to-high frequency noise and hinder the propagation of noise.
[0018] In the preferred technical solution of the above-mentioned sound insulation and vibration reduction structure and water purifier, the sound insulation cover includes a first cover and a second cover. The first cover and the second cover are fastened together to form a placement cavity, and the vibration source and the first vibration isolation member are located in the placement cavity.
[0019] With the above technical solution adopted, the soundproof cover has a split design, which facilitates production and the installation of vibration sources, and can improve assembly efficiency.
[0020] In the preferred technical solution of the above-mentioned sound insulation and vibration reduction structure and water purifier, the first cover and the second cover are connected by multiple screws.
[0021] When the above technical solution is adopted, the assembly efficiency can be improved by connecting the first cover and the second cover with screws.
[0022] In the preferred technical solutions of the above-mentioned sound insulation and vibration reduction structure and water purifier, the shape of the sound insulation cover is a cube, cylinder, sphere, polyhedron or irregular shape.
[0023] With the above technical solutions, the soundproof enclosure can be made in different shapes to adapt to different installation environments, making the sound insulation and vibration reduction structure more widely applicable.
[0024] Secondly, this utility model provides a water purifier; the water purifier includes a mounting plate;
[0025] Water pump;
[0026] In the sound insulation and vibration reduction structure described above, the water pump is connected to the first vibration isolator, and the second vibration isolator is connected to the mounting plate.
[0027] By adopting the above technical solution, the first vibration isolator reduces the vibration energy transmitted from the water pump to the soundproof cover, and the second vibration isolator reduces the vibration energy transmitted from the soundproof cover to the mounting plate. Furthermore, the non-coaxial arrangement of the first and second vibration isolators further hinders the transmission of vibration energy, thereby reducing the vibration of the vibration source, the soundproof cover, and the mounting plate, and thus reducing the operating noise of the water purifier. By reducing the vibration of the water pump, the low-frequency and mid-to-high-frequency noise emitted by the water pump can be reduced. The soundproof cover can further hinder and absorb the mid-to-high-frequency noise emitted by the water pump, achieving wide-band noise control of the water pump, thereby further reducing the operating noise of the water purifier.
[0028] In the preferred technical solution of the above-mentioned sound insulation and vibration reduction structure and water purifier, the ratio of the stiffness of the mounting plate to the stiffness of the second vibration isolator is greater than 10; and / or
[0029] The ratio of the stiffness of the soundproof enclosure to the stiffness of the second vibration isolator is greater than 10; and / or
[0030] The rigidity of the mounting plate is the same as that of the soundproof cover.
[0031] When the above technical solution is adopted, the ratio of the stiffness of the mounting plate to the stiffness of the second vibration isolator is greater than 10, which can reduce the vibration at the connection between the second vibration isolator and the mounting plate and improve the vibration reduction and noise reduction effect. Similarly, the ratio of the stiffness of the soundproof enclosure to the stiffness of the second vibration isolator is greater than 10, which can reduce the vibration at the connection between the second vibration isolator and the soundproof enclosure and improve the vibration reduction and noise reduction effect.
[0032] In summary, this utility model has the following beneficial technical effects:
[0033] 1. The first vibration isolator reduces the vibration energy transmitted from the vibration source to the soundproof cover, and the second vibration isolator reduces the vibration energy transmitted from the soundproof cover to the installation position. Furthermore, the non-coaxial arrangement of the first and second vibration isolators further hinders the transmission of vibration energy, thereby reducing the vibration of the vibration source, the soundproof cover, and the installation position, and reducing the operating noise of the water purifier. By reducing the vibration of the vibration source, the low-frequency and mid-to-high-frequency noise emitted by the vibration source can be reduced. The soundproof cover can further hinder and absorb the mid-to-high-frequency noise emitted by the vibration source, enabling the sound insulation and vibration reduction structure to achieve wide-band noise control of the vibration source, thereby further reducing the operating noise of the water purifier.
[0034] 2. The thickness of the damping layer is 1.2-1.5 times the wall thickness of the soundproof enclosure. The damping layer can better hinder the transmission of noise and dissipate the vibration energy of the vibration source.
[0035] 3. A stiffness ratio between the mounting plate and the second vibration isolator greater than 10 can reduce vibration at the connection between the second vibration isolator and the mounting plate, thus improving vibration reduction and noise reduction. Similarly, a stiffness ratio between the soundproof enclosure and the second vibration isolator greater than 10 can reduce vibration at the connection between the second vibration isolator and the soundproof enclosure, thus improving vibration reduction and noise reduction. Attached Figure Description
[0036] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:
[0037] Figure 1 This is a schematic diagram of the sound insulation and vibration reduction structure of this utility model;
[0038] Figure 2 This is a cross-sectional view of the sound insulation and vibration reduction structure of this utility model;
[0039] Figure 3 This is a cross-sectional view of another preferred embodiment of the sound insulation and vibration reduction structure of this utility model.
[0040] Figure label:
[0041] 1. Mounting plate; 2. Water pump; 3. Sound insulation and vibration reduction structure; 31. Sound insulation cover; 311. First cover; 312. Second cover; 32. First foot pad; 33. Second foot pad; 34. Sound insulation layer; 341. Damping layer; 342. Porous sound absorption layer. Detailed Implementation
[0042] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. 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 application scenarios.
[0043] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," and "right," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0044] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0045] To address the issue that the vibration transmission path of the water pump is isolated by only a single rubber pad between the water pump and the casing, resulting in poor noise reduction and still relatively loud operating noise of the water purifier, thus affecting the user experience.
[0046] like Figure 1 and Figure 2 As shown in the figure, this embodiment discloses a water purifier, which includes a shell, a mounting plate 1, a water pump 2, and a sound insulation and vibration damping structure 3. The mounting plate 1 is fixed on the shell, and the water pump 2 is installed inside the sound insulation and vibration damping structure 3. The sound insulation and vibration damping structure 3 is fixed on the mounting plate 1. The vibration of the water pump 2 can be reduced by the sound insulation and vibration damping structure 3, thereby achieving wide-band noise control of the water pump 2. It can also reduce the vibration energy transmitted by the water pump 2 to the mounting plate 1, thereby reducing the operating noise of the water purifier and improving the user experience.
[0047] like Figure 1 and Figure 2As shown, specifically, the sound insulation and vibration reduction structure 3 includes a soundproof cover 31, a sound insulation layer 34, at least one first vibration isolator and a second vibration isolator. The sound insulation layer 34 is fixed to the inner wall of the soundproof cover 31. The water pump 2 is located inside the soundproof cover 31. One end of the first vibration isolator is fixed to the water pump 2, and the other end is fixed to the soundproof cover 31. The water pump 2 can be installed through the first vibration isolator. One end of the second vibration isolator is fixed to the outer wall of the soundproof cover 31, and the other end of the second vibration isolator is fixed to the mounting plate 1. The soundproof cover 31 can be installed through the second vibration isolator.
[0048] Mid-to-high frequency noise attenuates rapidly with distance or when encountering obstacles. The soundproof enclosure 31 and soundproof layer 34 effectively block and absorb mid-to-high frequency noise emitted by the water pump 2. Low-frequency noise wavelengths can penetrate obstacles. The first vibration isolator reduces the vibration energy transmitted from the water pump 2 to the soundproof enclosure 31, thus reducing the vibration of the enclosure 31. The second vibration isolator further reduces the vibration energy transmitted from the enclosure 31 to the mounting plate 1, reducing vibration at the installation location. Furthermore, the non-coaxial arrangement of the first and second vibration isolators further hinders the transmission of vibration energy, thereby reducing the vibration of the water pump 2, the soundproof enclosure 31, and the mounting plate 1, and consequently reducing the operating noise of the water purifier. By reducing the vibration of the water pump 2, both low-frequency and mid-to-high frequency noise emitted by the pump can be reduced, achieving wide-band noise control of the pump and further reducing the operating noise of the water purifier.
[0049] like Figure 1 and Figure 2 As shown, the soundproof cover 31 includes a first cover 311 and a second cover 312, which are separately configured. The first cover 311 and the second cover 312 are fastened together to form a placement cavity. The first cover 311 and the second cover 312 can be fixedly connected by multiple screws, or the open end of the first cover 311 can be inserted into the open end of the second cover 312, as long as the fastening of the first cover 311 and the second cover 312 can be achieved. The water pump 2 is located inside the placement cavity. The first vibration damping element is fixed to the first cover 311 or the second cover 312, and the sound insulation layer 34 is fixed to the inner wall of the first cover 311 and the second cover 312. The separate design of the soundproof cover 31 facilitates its production and also facilitates the installation of the water pump 2 and the sound insulation layer 34, thereby improving the assembly efficiency of the water purifier.
[0050] like Figure 1 and Figure 2As shown, the sound insulation layer 34 may include only a damping layer 341, only a porous sound-absorbing layer 342, or both a damping layer 341 and a porous sound-absorbing layer 342. The thickness of the damping layer 341 is set to 1.2-1.5 times the wall thickness of the sound insulation enclosure 31. At this thickness ratio, the damping layer 341 can better impede noise transmission and dissipate the vibration energy of the water pump 2. The thickness of the porous sound-absorbing layer 342 is not less than 5mm, allowing it to better absorb mid-to-high frequency noise and impede noise transmission. The sound insulation enclosure 31 can be made of metal, plastic, or ceramic, with a wall thickness of 2-5mm. The damping layer 341 can be made of high-viscosity damping materials such as rubber or asphalt. The damping layer 341 can be fixed to the inner wall of the sound insulation enclosure 31 by pasting, coating, or bonding. The porous sound-absorbing layer 342 can be made of polymer, composite rock wool, or glass wool.
[0051] In this embodiment, the soundproof cover 31 is made of ABS plastic with a wall thickness of 5mm. The damping layer 341 is made of asphalt and coated on the inner wall of the soundproof cover 31. The porous sound-absorbing layer 342 is made of polymer and fixed on the asphalt layer. By absorbing mid-to-high frequency noise and hindering the propagation of noise through the damping layer 341 and the porous sound-absorbing layer 342, the mid-to-high frequency noise of the water purifier can be reduced.
[0052] like Figure 1 and Figure 2 As shown, the first vibration isolator is a first foot pad 32, and the second vibration isolator is a second foot pad 33. The first foot pad 32 and the second foot pad 33 can be made of elastic materials such as rubber or silicone. In this embodiment, the first foot pad 32 and the second foot pad 33 are made of rubber. The number of the first foot pad 32 and the second foot pad 33 is illustrated by example as four, and the first foot pad 32 and the second foot pad 33 are not coaxial.
[0053] A bracket is fixed to the bottom of the water pump 2, and four first foot pads 32 are evenly distributed under the bracket. The first foot pads 32 are fixed between the bracket and the second cover 312 by first screws, thus installing the water pump 2. The first foot pads 32 can reduce the vibration energy transmitted from the water pump 2 to the soundproof cover 31, thereby reducing the vibration of both the soundproof cover 31 and the water pump 2. The second foot pads 33 are fixed between the outer wall of the second cover 312 and the mounting plate 1 by second screws, thus installing the soundproof cover 31. The second foot pads 33 can reduce the vibration energy transmitted from the soundproof cover 31 to the mounting plate 1, thereby reducing the vibration of the second foot pads 33 at the mounting plate 1. Furthermore, the first foot pads 32 and the second foot pads 33 are not coaxial, which can further hinder the transmission of vibration energy and reduce the vibration of the second foot pads 33 at the mounting plate 1. This reduces the operating noise of the water purifier and improves the user experience.
[0054] Furthermore, after numerous experiments and tests, the ratio of the stiffness of the mounting plate 1 to the stiffness of the second foot pad 33 is greater than 10. This reduces vibration at the connection between the second foot pad 33 and the mounting plate 1, achieving vibration reduction and noise reduction at the mounting location of the second foot pad 33. Similarly, the ratio of the stiffness of the soundproof cover 31 to the stiffness of the second foot pad 33 is greater than 10, further reducing vibration at the connection between the second foot pad 33 and the soundproof cover 31, achieving vibration reduction and noise reduction at the mounting location of the soundproof cover 31. The stiffness of the mounting plate 1 and the soundproof cover 31 can be set to the same value. However, different materials and stiffnesses can also be selected, as long as the ratio of the stiffness of the mounting plate 1 to the second foot pad 33 is greater than 10 and the ratio of the stiffness of the soundproof cover 31 to the second foot pad 33 is greater than 10.
[0055] like Figure 2 and Figure 3 As shown, the soundproof cover 31 can be in the shape of a cube, cylinder, sphere, polyhedron or irregular shape to adapt to different installation environments. In addition to the water pump 2, the vibration source can also be a motor or compressor, making the soundproof and vibration damping structure 3 more applicable.
[0056] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A sound insulation and vibration reduction structure, characterized in that, It includes a soundproof cover (31), at least one first vibration isolation member and a second vibration isolation member, the vibration source is located inside the soundproof cover (31), and a soundproof layer (34) is provided on the inner wall of the soundproof cover (31); The first vibration isolation member is disposed between the vibration source and the soundproof cover (31), and the second vibration isolation member is disposed on the outer wall of the soundproof cover (31), and the first vibration isolation member and the second vibration isolation member are not coaxially arranged.
2. The sound insulation and vibration reduction structure according to claim 1, characterized in that, The first vibration isolator includes a first foot pad (32); and / or The second vibration isolator includes a second foot pad (33).
3. The sound insulation and vibration reduction structure according to claim 1, characterized in that, The sound insulation layer (34) includes a damping layer (341) and / or a porous sound-absorbing layer (342).
4. The sound insulation and vibration reduction structure according to claim 3, characterized in that, The thickness of the damping layer (341) is 1.2-1.5 times the wall thickness of the soundproof cover (31).
5. The sound insulation and vibration reduction structure according to claim 3, characterized in that, The thickness of the porous sound-absorbing layer (342) is not less than 5 mm.
6. The sound insulation and vibration reduction structure according to claim 1, characterized in that, The soundproof cover (31) includes a first cover (311) and a second cover (312). The first cover (311) and the second cover (312) are fastened together to form a placement cavity. The vibration source and the first vibration isolation member are located in the placement cavity.
7. The sound insulation and vibration reduction structure according to claim 6, characterized in that, The first cover (311) and the second cover (312) are connected by a plurality of screws.
8. The sound insulation and vibration reduction structure according to claim 1, characterized in that, The soundproof cover (31) is in the shape of a cube, cylinder, sphere, polyhedron or irregular shape.
9. A water purifier, characterized in that, The water purifier includes: Mounting plate (1); Water pump (2); According to any one of claims 1-8, the sound insulation and vibration reduction structure is provided, wherein the water pump (2) is connected to the first vibration isolation member, and the second vibration isolation member is connected to the mounting plate (1).
10. The water purifier according to claim 9, characterized in that, The ratio of the stiffness of the mounting plate (1) to the stiffness of the second vibration isolator is greater than 10; and / or The ratio of the stiffness of the soundproof enclosure (31) to the stiffness of the second vibration isolator is greater than 10; and / or The rigidity of the mounting plate (1) is the same as that of the soundproof cover (31).