Soundproofing device, compressor assembly and air conditioner

Abstract

The application discloses a sound insulation device, a compressor assembly and an air conditioner, wherein the sound insulation device comprises: a sound insulation layer, which is located at the outermost layer; a sound absorption layer, which is located inside the sound insulation layer, and is formed with an accommodating cavity; and a sound attenuation hole plate, which is arranged between the sound insulation layer and the sound absorption layer. The sound insulation device, the compressor assembly and the air conditioner effectively solve the problem of poor noise reduction effect of the compressor in the prior art.

Description

Technical Field

[0001] This invention relates to the field of compressor noise reduction technology, and more specifically, to a sound insulation device, a compressor assembly, and an air conditioner. Background Technology

[0002] As people's living standards continue to improve, air conditioners have long become a necessity in every household. At the same time, the noise level of air conditioners is receiving increasing attention from consumers. Air conditioner noise not only pollutes the surrounding environment but also affects people's lives and work.

[0003] As people's living standards continue to improve, consumers are demanding higher levels of comfort in their living environment, which in turn places higher demands on the performance of air conditioning products.

[0004] Currently, the main challenge in controlling air conditioner noise lies in controlling compressor noise. Compressor noise has become a key issue restricting further improvement in air conditioner quality and is also a hot topic of user complaints.

[0005] Existing noise reduction methods mainly include wrapping the compressor with sound insulation cotton and using sheet metal soundproof covers. However, both methods have certain drawbacks. The method of wrapping the compressor with sound insulation cotton cannot guarantee that the compressor will be completely enclosed, and high-frequency noise will be transmitted into the air through the gaps. The sheet metal soundproof cover method has good enclosure, but it takes up a lot of space. At the same time, the compressor transmits vibration to the sheet metal soundproof cover through the base plate, causing radiated noise and forming a new noise source.

[0006] In summary, the noise reduction effect of compressors in existing technologies is poor. Summary of the Invention

[0007] This invention provides a sound insulation device, a compressor assembly, and an air conditioner to solve the problem of poor noise reduction effect of compressors in the prior art.

[0008] To achieve the above objectives, the present invention provides a sound insulation device, comprising: a sound insulation layer located on the outermost layer; a sound absorption layer located inside the sound insulation layer, the sound absorption layer forming a receiving cavity; and a sound-absorbing perforated plate disposed between the sound insulation layer and the sound absorption layer.

[0009] Furthermore, the sound-absorbing plate includes: a plate body having a plurality of sound-absorbing holes; a plurality of sound-absorbing plates connected to the plate body, the sound-absorbing plates being disposed within the sound-absorbing holes, and each sound-absorbing plate being disposed within one sound-absorbing hole.

[0010] Furthermore, all of the aforementioned sound-absorbing holes are evenly distributed on the plate.

[0011] Furthermore, all the aforementioned silencing holes are arranged in a rectangular array.

[0012] Furthermore, the sound-absorbing sheet is made of diaphragm material.

[0013] Furthermore, the surface of the plate is a smooth surface.

[0014] Furthermore, the sound insulation layer is made of sound insulation cotton, and the sound absorption layer is made of sound absorption cotton.

[0015] Furthermore, the sound insulation layer is a sound insulation board structure.

[0016] Furthermore, the sound insulation layer, sound absorption layer, and sound-absorbing perforated plate are interconnected to form an integral structure.

[0017] According to another aspect of the invention, a compressor assembly is provided, including a compressor and a sound insulation device, the sound insulation device being the one described above, wherein the compressor is located within the receiving cavity.

[0018] Furthermore, the compressor is entirely located within the receiving cavity, which is a closed space.

[0019] According to another aspect of the present invention, an air conditioner is provided, comprising the compressor assembly described above.

[0020] The sound insulation device of this invention is used to reduce noise in a compressor, which is placed in a housing cavity. When the compressor is operating, the innermost sound-absorbing layer of the sound insulation device first comes into contact with the noise and absorbs some of the low-frequency noise, thereby reducing the noise level. Noise that cannot be eliminated by the sound-absorbing layer reaches the sound-absorbing perforated plate, where its sound-absorbing function absorbs and silences the noise. Finally, the outermost sound insulation layer performs a third filtration, blocking some of the noise. Through the combination of the above structures and the noise reduction principle, the sound insulation device of this invention can reduce the noise generated by the compressor to the greatest extent possible.

[0021] It is important to emphasize that the sound insulation layer, sound absorption layer, and sound-absorbing perforated panel are used in conjunction. First, the outermost sound insulation layer envelops the entire compressor sound source, forming a sealed sound barrier. When sound waves encounter this barrier, reflection, refraction, and diffraction occur, creating a sound shadow zone within the sound insulation material. Then, the sound-absorbing perforated panel and sound absorption layer inside this sound shadow zone work together to weaken and eliminate noise. The sound shadow zone created by the sound insulation layer is always present, and this process is repeated continuously to reduce noise. Compared to existing technologies that use individual sound absorption or sound insulation devices, this is more effective. The three-layer structure works together and interconnects to achieve maximum sound absorption and noise reduction. Attached Figure Description

[0022] Figure 1 This is an exploded view of the sound insulation device according to an embodiment of the present invention;

[0023] Figure 2 This is an assembly diagram of the sound insulation device according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the sound-absorbing perforated plate of the sound insulation device according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the compressor assembly according to an embodiment of the present invention. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0027] See Figures 1 to 3 As shown, according to an embodiment of the present invention, a sound insulation device is provided, the sound insulation device including a sound insulation layer 10, a sound absorption layer 20 and a sound-absorbing perforated plate 30, wherein the sound insulation layer 10 is located on the outermost layer; the sound absorption layer 20 is located inside the sound insulation layer 10, and the sound absorption layer 20 forms a receiving cavity 21; the sound-absorbing perforated plate 30 is disposed between the sound insulation layer 10 and the sound absorption layer 20.

[0028] The sound insulation device of this invention is used to reduce noise in a compressor, which is placed in a housing cavity. When the compressor is operating, the innermost sound-absorbing layer of the sound insulation device first comes into contact with the noise and absorbs some of the low-frequency noise, thereby reducing the noise level. Noise that cannot be eliminated by the sound-absorbing layer reaches the sound-absorbing perforated plate, where its sound-absorbing function absorbs and silences the noise. Finally, the outermost sound insulation layer performs a third filtration, blocking some of the noise. Through the combination of the above structures and the noise reduction principle, the sound insulation device of this invention can reduce the noise generated by the compressor to the greatest extent possible.

[0029] It is important to emphasize that the sound insulation layer, sound absorption layer, and sound-absorbing perforated panel are used in conjunction. First, the outermost sound insulation layer envelops the entire compressor sound source, forming a sealed sound barrier. When sound waves encounter this barrier, reflection, refraction, and diffraction occur, creating a sound shadow zone within the sound insulation material. Then, the sound-absorbing perforated panel and sound absorption layer inside this sound shadow zone work together to weaken and eliminate noise. The sound shadow zone created by the sound insulation layer is always present, and this process is repeated continuously to reduce noise. Compared to existing technologies that use individual sound absorption or sound insulation devices, this is more effective. The three-layer structure works together and interconnects to achieve maximum sound absorption and noise reduction.

[0030] See Figure 3The silencing plate 30 includes a plate body 31, a plurality of silencing holes 32 and a plurality of silencing plates. The plate body 31 has a plurality of silencing holes 32. The silencing plates 33 are connected to the plate body 31 and are disposed in the silencing holes 32. Each silencing plate 33 is disposed in one silencing hole 32.

[0031] The sound waves are absorbed and dissipated through the structure of the sound-absorbing holes and sound-absorbing plates, thus reducing noise. The structure of the sound-absorbing plates can be designed according to specific needs or manufacturing processes.

[0032] See Figure 2 Since the overall structure of the sound insulation device is covered or encased outside the compressor 40, the shape of the sound-absorbing perforated plate needs to be adapted to the external shape of the compressor. Therefore, in order to achieve the best sound-absorbing effect of the sound-absorbing perforated plate at all angles of the compressor, in this embodiment, all the sound-absorbing holes 32 are evenly distributed on the plate 31.

[0033] Combination Figure 3 As shown, all the noise reduction holes 32 are arranged in a rectangular array. This rectangular array arrangement makes the noise reduction holes more symmetrical and improves the noise reduction effect.

[0034] Preferably, the sound-absorbing plate 33 is made of a diaphragm material. The sound-absorbing plate 33 uses the same vibrating material as that used in loudspeakers, i.e., a diaphragm material.

[0035] The vibration of the plate is transmitted to the sound-absorbing plate, causing the sound-absorbing plate to vibrate. The vibration of the sound-absorbing plate generates a reverse sound wave. The noise sound wave (also known as the forward sound wave) that the compressor reaches through the sound-absorbing layer to the sound-absorbing plate meets the reverse sound wave. The forward and reverse sound waves collide and weaken each other, repeating this cycle until the sound wave intensity can no longer cause the plate to vibrate.

[0036] Preferably, the surface of the plate 31 is a smooth surface.

[0037] The panel is made of a smooth material that is not sensitive to sound wave vibrations. The sound-absorbing plate uses a speaker vibration material. When a positive sound wave reaches the sound-absorbing plate, part of it is reflected by the smooth surface of the panel to form a reverse sound wave. The positive sound wave that cannot be reflected is absorbed by the panel, causing the panel to vibrate slightly. The vibration of the panel is transmitted to the sound-absorbing plate, causing the sound-absorbing plate to vibrate. The vibration of the sound-absorbing plate generates a reverse sound wave. Part of the positive sound wave passing through the sound-absorbing layer is absorbed by the panel, part is reflected by the panel, and the other part meets the reverse sound wave. The positive and negative sound waves collide and weaken each other, repeating this cycle until the sound wave intensity between the sound-absorbing layer and the sound-absorbing plate can no longer cause the panel to vibrate. The sound waves in this frequency range will then pass through the sound-absorbing plate to reach the sound insulation layer.

[0038] In this embodiment, the sound insulation layer 10 is made of sound insulation cotton, and the sound absorption layer 20 is made of sound absorption cotton.

[0039] The advantages of sound-absorbing and sound-insulating cotton are that they are lightweight, can be adapted to the overall shape of the compressor, are easy to shape and adapt during production, and have a simple manufacturing process. The flexible material of sound-absorbing and sound-insulating cotton can be wrapped around the outside of the compressor, taking up little space.

[0040] In this structure, the sound insulation layer 10, the sound absorption layer 20, and the sound-absorbing perforated plate 30 are interconnected to form an integral structure. The sound insulation cotton and sound absorption cotton can be connected through integration, bonding, or other methods. The sound-absorbing perforated plate can be connected to the sound insulation layer and / or sound absorption layer through bonding, snap-fit, or other methods. The advantage of forming an integral structure for the entire sound insulation device is that the device can be installed as a whole, resulting in a more compact structure and less susceptibility to damage.

[0041] This embodiment features a simple and compact structure, composed of sound-absorbing cotton, a perforated sound-absorbing plate, and sound-insulating cotton, all made of flexible materials, eliminating the need for additional gaps around the compressor. It employs diverse sound-absorbing methods, not only consuming sound energy but also using the reverse sound waves generated by the perforated sound-absorbing plate to cancel out the compressor's original sound waves, resulting in higher reliability and better usability.

[0042] In other embodiments not shown in the figures, the sound insulation layer 10 is a sound insulation board structure with a hard surface, which can effectively protect the sound insulation device.

[0043] See Figure 4 The present invention provides an embodiment of a compressor assembly, the compressor assembly including a compressor 40 and a sound insulation device, the sound insulation device being the same as the sound insulation device described in the above embodiment, the compressor 40 being located within the receiving cavity 21.

[0044] Preferably, the compressor 40 is entirely located within the receiving cavity 21, which is a closed space. The sound insulation device completely encloses the compressor, resulting in more significant noise reduction.

[0045] The present invention provides an embodiment of an air conditioner, which includes the compressor assembly described in the above embodiment.

[0046] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0047] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0048] Of course, the above are preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the basic principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A sound insulating device, characterized in that, include: Sound insulation layer (10), the sound insulation layer (10) is located on the outermost layer; The sound-absorbing layer (20) is located inside the sound insulation layer (10) and has a receiving cavity (21). A sound-absorbing perforated plate (30) is disposed between the sound insulation layer (10) and the sound absorption layer (20); The sound-absorbing perforated plate (30) includes: The plate (31) has a plurality of sound-absorbing holes (32). Multiple sound-absorbing plates (33) are connected to the plate (31) and are disposed in the sound-absorbing holes (32). Each sound-absorbing plate (33) is disposed in one sound-absorbing hole (32). The sound-absorbing sheet (33) is made of diaphragm material; A portion of the positive sound wave passing through the sound-absorbing layer (20) is absorbed by the plate (31), causing the plate (31) to vibrate. The vibration of the plate (31) is transmitted to the sound-absorbing sheet (33), causing the sound-absorbing sheet (33) to vibrate. The vibration of the sound-absorbing sheet (33) generates a reverse sound wave. The positive sound wave reaching the sound-absorbing perforated plate (30) meets the reverse sound wave, and the positive sound wave and the reverse sound wave collide and weaken each other.

2. The sound insulation device according to claim 1, characterized in that, All the aforementioned sound-absorbing holes (32) are evenly distributed on the plate (31).

3. The sound insulation device according to claim 2, characterized in that, All the aforementioned silencing holes (32) are arranged in a rectangular array.

4. The soundproofing device of claim 1, wherein The surface of the plate (31) is a smooth surface.

5. The sound insulation device according to claim 1, characterized in that, The sound insulation layer (10) is made of sound insulation cotton, and the sound absorption layer (20) is made of sound absorption cotton.

6. The soundproofing device of claim 1, wherein The sound insulation layer (10) is a sound insulation board structure.

7. The soundproofing device of claim 1, wherein The sound insulation layer (10), the sound absorption layer (20), and the sound-absorbing perforated plate (30) are connected to each other to form an integral structure.

8. A compressor assembly characterized by, It includes a compressor (40) and a sound insulation device, the sound insulation device being the sound insulation device according to any one of claims 1 to 7, wherein the compressor (40) is located within the receiving cavity (21).

9. The compressor assembly of claim 8, wherein, The compressor (40) is entirely located within the receiving cavity (21), which is a closed space.

10. An air conditioner characterized by comprising: Includes the compressor assembly as described in claim 8 or 9.

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