A press chamber sound absorption assembly and an air conditioner outdoor unit

Abstract

This application discloses a compressor compartment sound-absorbing component and an air conditioner outdoor unit. The compressor compartment sound-absorbing component includes a first sound-absorbing layer, a second sound-absorbing layer, and a foam layer. The first sound-absorbing layer is provided on the outer peripheral wall of the compressor in the compressor compartment, and the second sound-absorbing layer is provided on the liquid storage tank and the top of the compressor. A foam layer is provided between the second sound-absorbing layer and the electrical control box of the compressor compartment. The first sound-absorbing layer, the second sound-absorbing layer, and the foam layer work together to effectively absorb the sound energy in the circumferential direction and the top of the compressor. At the same time, the first and second sound-absorbing layers absorb high-frequency noise, while the foam layer absorbs mid- and low-frequency noise. The two work together to reduce the transmission of high-frequency and low-frequency noise, achieving full-band noise reduction of the compressor, reducing the noise transmitted to the outside world, and improving the user experience.

Description

Technical Field

[0001] This application relates to the field of air conditioning equipment technology, and in particular to a compressor compartment sound-absorbing component and an air conditioning outdoor unit. Background Technology

[0002] The compressor compartment is used to house components such as compressors, and it provides physical protection for these components, preventing them from being impacted by external forces and from being damaged by external factors such as dust and rain.

[0003] The compressor is the core power component of an air conditioner and also the main source of its vibration and noise. To reduce and eliminate the outward propagation of compressor noise, related technologies involve wrapping the compressor compartment with multiple layers of sound-absorbing and insulating material (called a compressor quilt) to minimize noise transmission. The thicker the sound-absorbing and insulating material, the better the noise reduction effect.

[0004] However, due to the very compact space inside the pressure chamber of the air conditioner outdoor unit, the thickness of the sound-absorbing and sound-insulating material is limited, and the thickness of the sound-absorbing and sound-insulating material cannot be too large.

[0005] In addition, press-type cotton quilts are very ineffective against low-frequency noise below 1000Hz, and low-frequency noise is the main noise component that affects user experience. Utility Model Content

[0006] This application discloses a compressor compartment sound-absorbing component to enhance the absorption of mid-to-low frequency noise below 1000Hz. This application also discloses an outdoor air conditioning unit incorporating the aforementioned compressor compartment sound-absorbing component.

[0007] In a first aspect, this application provides a compressor chamber sound-absorbing component, comprising:

[0008] The first sound-absorbing layer is set on the outer peripheral wall of the compressor in the compressor compartment;

[0009] The second sound-absorbing layer is disposed at the top of the compressor and the liquid storage tank;

[0010] A foam layer is disposed between the second sound-absorbing layer and the electrical control box of the compressor chamber, and the foam layer is used to fill the space between the second sound-absorbing layer and the electrical control box;

[0011] The first sound-absorbing layer and the second sound-absorbing layer are used to absorb high-frequency noise, and the foaming layer is used to absorb mid- and low-frequency noise.

[0012] Preferably, the compressor chamber sound-absorbing assembly described above further includes a third sound-absorbing layer, which is used to absorb high-frequency noise;

[0013] The compressor compartment wall includes a first side wall and a second side wall. The first side wall is the side wall of the compressor compartment where the partition of the compressor compartment is located. The second side wall is the side wall of the compressor compartment formed by the outdoor unit housing and the partition. There are three second side walls.

[0014] The third sound-absorbing layer is provided on the warehouse wall.

[0015] Preferably, in the above-described compressor chamber sound-absorbing assembly, the foaming layer is disposed between the annular space formed by the first sound-absorbing layer and the third sound-absorbing layer.

[0016] Preferably, in the above-described compressor chamber sound-absorbing assembly, the foam layer is disposed between the third sound-absorbing layer and the chamber wall.

[0017] Preferably, in the compressor chamber sound-absorbing assembly described above, the foaming layer is disposed between the top of the compressor and the liquid storage tank and the side of the second sound-absorbing layer away from the electrical control box.

[0018] Preferably, in the compressor chamber sound-absorbing assembly described above, the foam layer is disposed between the outer peripheral wall of the compressor and the first sound-absorbing layer.

[0019] Preferably, in the above-described compressor chamber sound-absorbing assembly, the foam layer is at least one of silicone foam, polyurethane foam, and acrylic foam.

[0020] Preferably, in the above-described compressor chamber sound-absorbing assembly, the thickness of the first sound-absorbing layer is less than or equal to the thickness of the third sound-absorbing layer.

[0021] Preferably, in the above-described press chamber sound-absorbing assembly, at least one of the first sound-absorbing layer, the second sound-absorbing layer, and the third sound-absorbing layer includes at least one of felt, sound-absorbing cotton, and leather.

[0022] Secondly, this application discloses an outdoor unit for an air conditioner, including a housing, a partition, and a compressor compartment sound-absorbing component. The partition separates the housing into a fan compartment and a compressor compartment, and the compressor compartment sound-absorbing component is disposed inside the compressor compartment.

[0023] The sound-absorbing component of the press chamber is the same as the sound-absorbing component of the press chamber described in any of the above solutions.

[0024] The compressor compartment sound-absorbing component provided in this application includes a first sound-absorbing layer, a second sound-absorbing layer, and a foam layer. The first sound-absorbing layer is disposed on the outer peripheral wall of the compressor in the compressor compartment, and the second sound-absorbing layer is disposed on the liquid storage tank and the top of the compressor. A foam layer is disposed between the second sound-absorbing layer and the electrical control box of the compressor compartment. The first sound-absorbing layer, the second sound-absorbing layer, and the foam layer work together to effectively absorb sound energy from the circumference and top of the compressor. Simultaneously, the first and second sound-absorbing layers absorb high-frequency noise, while the foam layer absorbs mid- and low-frequency noise. Together, they reduce the transmission of high-frequency and low-frequency noise, achieving full-band noise reduction of the compressor, reducing noise transmitted to the outside world, and improving the user experience.

[0025] This application also discloses an air conditioner outdoor unit, including a housing, a partition, and a compressor compartment sound-absorbing component. The partition separates the housing into a fan compartment and a compressor compartment, and a compressor compartment sound-absorbing component is disposed within the compressor compartment. The compressor compartment sound-absorbing component is the compressor compartment sound-absorbing component described in any of the above-mentioned solutions. Since the compressor compartment sound-absorbing component has the above-mentioned technical effects, the air conditioner outdoor unit with this compressor compartment sound-absorbing component also has the same technical effects, and will not be described in detail here. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort, and this application can be applied to other similar scenarios based on the provided drawings. Unless obvious from the linguistic context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0027] Figure 1 This is a schematic diagram of the structure of the outdoor unit casing in existing technology;

[0028] Figure 2 This is a schematic diagram of the structure of the compressor chamber sound-absorbing component and the compressor chamber provided in the embodiments of this application.

[0029] in:

[0030] 01-Casing; 02-Baffle; 03-Fan compartment; 04-Compressor compartment; 041-Electrical control box; 042-Pipeline system; 043-Compressor; 044-Liquid storage tank;

[0031] 1-Compressor; 2-Liquid tank; 3-First sound-absorbing layer; 4-Second sound-absorbing layer; 5-Foaming layer; 6-Third sound-absorbing layer; 7-Baffle. Detailed Implementation

[0032] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. The described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.

[0033] It should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0034] It should be understood that the terms "system," "apparatus," "unit," and / or "module" used in this application are a method of distinguishing different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions.

[0035] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0036] In the description of the embodiments of this application, unless otherwise stated, " / " means "or", for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more.

[0037] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0038] Most current acoustic metamaterials dissipate sound energy by constructing micro-perforated plates and Helmholtz resonant cavities. However, when applied to the use of air conditioner outdoor units, there are difficulties in mass production and installation limitations.

[0039] like Figure 1 As shown, the casing 01 of the air conditioner outdoor unit is divided into a fan compartment 03 for accommodating the fan and a compressor compartment 04 for accommodating the compressor by a partition 02. The compressor compartment 04 includes an electrical control box 041, a piping system 042, a compressor 043, and a liquid receiver 044. The electrical control box 041 is located at the top, the piping system 042 is located between the compressor 043 and the electrical control box 041, and the compressor 043 and the liquid receiver 044 are arranged side by side.

[0040] In related technologies, a composite of sound-absorbing and sound-insulating materials such as felt, sound-absorbing cotton, and leather is used to wrap the compressor 043 and the piping system 042 to reduce the transmission of vibration outward.

[0041] Firstly, such as Figure 2 The diagram shown is a structural schematic of the compressor chamber sound-absorbing component and the compressor chamber disclosed in this application.

[0042] The sound-absorbing component of the compressor chamber includes a first sound-absorbing layer 3, a second sound-absorbing layer 4, and a foam layer 5.

[0043] A first sound-absorbing layer 3 is provided on the outer peripheral wall of the compressor 1 in the compressor compartment to reduce the transmission of circumferential noise from the compressor 1.

[0044] When compressor 1 is running, compressor 1 and the piping system will inevitably vibrate and radiate noise outward. Due to the structural characteristics of the arrangement of compressor 1 and liquid tank 2, the noise from the top of compressor 1 will be greater than the noise from the outer peripheral wall of compressor 1.

[0045] To reduce noise transmission from the top of compressor 1, this application provides a second sound-absorbing layer 4 at the top of the liquid storage tank 2 and compressor 1, and a foam layer 5 between the second sound-absorbing layer 4 and the electrical control box of the compressor compartment. The porous nature of the foam layer 5 effectively absorbs sound.

[0046] The first sound-absorbing layer 3 absorbs the vibration of the outer peripheral wall of the compressor 1. The second sound-absorbing layer 4 works in conjunction with the foaming layer 5 to reduce the transmission of vibration from the top of the compressor 1 and the piping system of the compressor 1 to the outside, and converts the sound energy radiated outward by the compressor 1 and the piping system of the compressor 1 into heat energy, thereby reducing the noise transmitted from the compressor chamber to the external environment.

[0047] The compressor chamber sound-absorbing component disclosed in this application effectively absorbs the sound energy of the compressor 1 in the circumference and top of the compressor 1 through the cooperation of the first sound-absorbing layer 3, the second sound-absorbing layer 4 and the foaming layer 5, thereby reducing the noise transmitted from the compressor chamber to the external environment and improving the user experience.

[0048] The second sound-absorbing layer 4 is located below the electrical control box and above both the compressor 1 and the liquid storage tank 2, and is positioned near the top of both the compressor 1 and the liquid storage tank 2. A foam layer 5 is disposed between the second sound-absorbing layer 4 and the electrical control box, filling the space between the second sound-absorbing layer 4 and the electrical control box. The foam layer 5 and the second sound-absorbing layer 4 are independently disposed, reducing the limitation imposed by the second sound-absorbing layer 4 on the thickness of the foam layer 5. Optionally, the foam layer 5 fills the space between the second sound-absorbing layer 4 and the electrical control box. The foam layer 5 is formed of expanding foam, which forms a sponge-like sound-absorbing structure to absorb the vibration of the compressor 1 and the piping system connected to the compressor 1, reducing the transmission of noise outward.

[0049] The second sound-absorbing layer 4 is mainly connected to the piping system between it and the electrical control box. The foam layer 5 is formed by foam adhesive, which can fully wrap the piping system and fill the gaps between adjacent pipes. Compared with the method of using only sound-absorbing layers for noise reduction in related technologies, this avoids the situation where noise leakage is caused by inadequate wrapping of the press cotton quilt.

[0050] Optionally, the first sound-absorbing layer 3 and the second sound-absorbing layer 4 are sound-absorbing structures made of sound-absorbing and insulating materials. The first sound-absorbing layer 3 and the second sound-absorbing layer 4 are used to absorb high-frequency noise, and the foam layer 5 is used to absorb mid- and low-frequency noise. The two work together to reduce the transmission of high-frequency and low-frequency noise and improve the user experience. High-frequency noise is noise with a frequency higher than 2000Hz; mid-frequency noise is noise with a frequency of 500Hz-2000Hz; and low-frequency noise is noise with a frequency lower than 500Hz.

[0051] The foaming material of foam layer 5 needs to meet conditions such as high temperature resistance and a soft and delicate texture after foaming, while the foam adhesive also needs to meet flame retardancy requirements. Optionally, foam layer 5 is at least one of silicone, polyurethane, and acrylic. Specifically, foam layer 5 can be a silicone foam layer, a polyurethane foam layer, or an acrylic foam layer, or a combination of two or three of these substances.

[0052] Optionally, expanding foam can be injected into the foam filling position before the air conditioner outdoor unit is installed with a multi-port thin tube. After the expanding foam expands, it fills the entire space where the foam needs to be filled.

[0053] The compressor compartment walls are the circumferential side walls of the compressor compartment, including the first side wall and the second side wall, but excluding the top wall at the top of the compressor compartment and the bottom wall at the bottom of the compressor compartment. The partition 7 has two side walls, one located in the fan compartment and the other in the compressor compartment. The side wall of the partition 7 located in the compressor compartment is the first side wall. The casing of the outdoor air conditioner unit and the partition 7 enclose the compressor compartment. The second side wall is the side wall of the outdoor air conditioner unit casing. The second side wall, together with the first side wall, forms the compartment walls. There are three second side walls.

[0054] The compressor chamber sound-absorbing component disclosed in this application further includes a third sound-absorbing layer 6, which is disposed on the chamber wall. Specifically, the third sound-absorbing layer 6 is disposed on the first side wall; or, the third sound-absorbing layer 6 is disposed on at least one second side wall; or, the third sound-absorbing layer 6 is disposed on the first side wall and at least one second side wall.

[0055] Optionally, a third sound-absorbing layer 6 is provided on the first side wall and the three second side walls, so that the four peripheral walls of the compressor chamber have a third sound-absorbing layer 6 to reduce the noise transmitted outward through the compressor 1 in the circumferential direction.

[0056] In some embodiments, the outer peripheral wall of the compressor 1 is provided with a first sound-absorbing layer 3, and the wall of the compressor compartment is provided with a third sound-absorbing layer 6, so as to form a two-layer sound-absorbing structure consisting of the first sound-absorbing layer 3 and the third sound-absorbing layer 6 in the outer peripheral direction of the compressor 1; a two-layer sound-absorbing structure consisting of a second sound-absorbing layer 4 and a foaming layer 5 is formed at the upper end of the compressor 1 and the liquid storage tank 2. This embodiment further enhances the noise absorption and insulation effect of the compressor compartment sound-absorbing components and improves the user experience.

[0057] To further optimize the above technical solution, a foaming layer 5 is provided between the annular space formed by the first sound-absorbing layer 3 and the third sound-absorbing layer 6. This foaming layer can wrap the liquid storage tank, increasing the thickness of the foaming layer 5 in the direction of the liquid storage tank and improving the noise reduction effect.

[0058] Specifically, a third sound-absorbing layer 6 is provided on the first side wall and the three second side walls of the compressor chamber. A foam layer 5 is provided between the third sound-absorbing layer 6 and the first sound-absorbing layer 3 on the first side wall of the compressor chamber, and a foam layer 5 is provided between the third sound-absorbing layer 6 and the first sound-absorbing layer 3 on the second side wall of the compressor chamber. In this embodiment, a three-layer sound-absorbing mechanism consisting of a first sound-absorbing layer 3, a foam layer 5, and a third sound-absorbing layer 6 is formed along the axis perpendicular to the compressor 1. Noise is transmitted outward after passing through the first sound-absorbing layer 3, the foam layer 5, and the third sound-absorbing layer 6 in sequence, which can effectively reduce low-frequency and high-frequency noise.

[0059] Because low-frequency noise has a long wavelength, a thicker sound-absorbing layer is required. The sound-absorbing layers (the first, second, and third sound-absorbing layers collectively) in the compressor compartment sound-absorbing assembly disclosed in this application primarily target high-frequency noise. Since high-frequency noise has a short wavelength, the thickness of the sound-absorbing layer can be appropriately reduced. Correspondingly, the thickness of the foam layer 5, used to absorb mid-to-low-frequency noise, can be set to be greater. The combination of these two layers involves not only a combination of structures but also a combination of thicknesses. The structure and thickness of the sound-absorbing layer and the foam layer are designed according to the noise distribution to enhance the noise reduction effect.

[0060] The compressor compartment sound-absorbing component disclosed in this application further includes a foam layer 5 disposed between the top of the compressor 1 and the liquid storage tank 2 and the side of the second sound-absorbing layer 4 away from the electrical control box. The foam layer 5 fills the space between the compressor 1 and the liquid storage tank 2 and the second sound-absorbing layer 4, further reducing the vibration of the top of the compressor 1 and the pipeline connected to the compressor 1. In this embodiment, the top of the compressor 1 and the liquid storage tank 2 includes a foam layer 5, a second sound-absorbing layer 4, and a foam layer 5, that is, a second sound-absorbing layer 4 is sandwiched between two foam layers 5, which reduces the high-frequency noise and mid-to-low-frequency noise of the compressor 1 and the pipeline connected to the compressor 1, achieving full-band noise reduction of the compressor 1 and reducing the noise transmitted to the outside. In this embodiment, the thickness of the foam layer 5 located between the second sound-absorbing layer 4 and the electrical control box is greater than the thickness of the second sound-absorbing layer 4, effectively absorbing the mid-to-low-frequency noise from the top of the compressor 1.

[0061] The foam layer 5 located between the top of the compressor 1 and the liquid storage tank 2 and the side of the second sound-absorbing layer 4 away from the electrical control box can cover the upper end of the compressor 1 and the pipeline connected to the compressor 1. Compared with the method of using only the sound-absorbing layer for noise reduction in related technologies, it avoids the situation of noise leakage caused by the compressor quilt not being properly wrapped.

[0062] Optionally, a foaming layer 5 is provided between the outer peripheral wall of the compressor 1 and the first sound-absorbing layer 3.

[0063] The foam layer 5 is tightly wrapped around the outer wall of the compressor 1. The vibration of the compressor 1 is directly transmitted to the foam layer 5, which shortens the path of vibration propagation in the air and reduces noise to the greatest extent.

[0064] In this embodiment, along the outer periphery of the compressor 1, there are sequentially foamed layers 5, 3, 6, and 7. Specifically, a foamed layer 5 is disposed between the first sound-absorbing layer 3 and the outer peripheral wall of the compressor 1, between the first sound-absorbing layer 3 and the third sound-absorbing layer 6, and between the third sound-absorbing layer 6 and the wall of the compressor chamber. The thicknesses of the first sound-absorbing layer 3, the second sound-absorbing layer 4, and the third sound-absorbing layer 6 are designed and, in conjunction with the foamed layers 5 located between adjacent sound-absorbing layers, reduce low-frequency and high-frequency noise, achieving full-band noise reduction of the compressor 1, reducing noise transmitted to the outside, and improving the user experience.

[0065] The foam layer 5 fills the gap between the first sound-absorbing layer 3 and the compressor 1, the space between the first sound-absorbing layer 3 and the third sound-absorbing layer 6, the gap between the third sound-absorbing layer 6 and the wall of the compressor chamber, and the space between the second sound-absorbing layer 4 and the electrical control box. By utilizing the expansion characteristics of the foam layer 5, it fills the entire area of ​​the compressor chamber, effectively expanding the area of ​​the foam layer 5 and reducing the noise of the compressor chamber.

[0066] In some embodiments, depending on the radiation characteristics of the vibration noise of the compressor chamber, the foam layer 5 may be filled only between the first sound-absorbing layer 3 covering the connecting pipe to the compressor 1, and the gap between the first sound-absorbing layer 3 and the connecting pipe may be filled with the foam layer 5.

[0067] Utilizing the self-curing property of the foam layer 5 after expansion, no additional adhesive is needed between the foam layer 5 and the sound-absorbing layer, or between the foam layer 5 and the pipes connected to the compressor 1, to ensure the connection between the foam layer 5 and the compressor 1, the foam layer 5 and the sound-absorbing layer, the foam layer 5 and the pipes, and the foam layer 5 and the wall of the compressor chamber. The compressor chamber sound-absorbing component disclosed in this application, through the addition of the foam layer 5, not only achieves the function of processing mid-to-low frequency noise, but also connects the components located on both sides of the foam layer 5, eliminating the need for separate connections between the foam layer 5 and adjacent components, thus reducing the assembly difficulty of the compressor chamber sound-absorbing component.

[0068] Optionally, the foam layer 5 is an open-cell foam material, which has a strong ability to absorb low-to-medium frequency noise. The open-cell foam material may be at least one of melamine foam and open-cell polyurethane foam.

[0069] In some embodiments, the thickness of the first sound-absorbing layer 3 is less than or equal to the thickness of the second sound-absorbing layer 4, and the absorption capacity of the first sound-absorbing layer 3 for high-frequency noise is greater than or equal to the absorption capacity of the second sound-absorbing layer 4 for high-frequency noise. In this embodiment, high-frequency noise is reduced near the vibration source to decrease its outward transmission. After high-frequency noise is treated by the first sound-absorbing layer 3, the high-frequency noise in the noise is further treated by the second sound-absorbing layer 4.

[0070] Due to the layout of components such as compressor 1 and liquid storage tank 2 within the compressor compartment, a thicker foam layer 5 can be filled in the front, rear, and right side (the side of compressor 1 where liquid storage tank 2 is located). This achieves the goal of increasing the effective thickness of the sound-absorbing and insulating structure within the compressor compartment without changing its dimensions. It should be noted that the front and rear sides of compressor 1 refer to the two sides along the arrangement direction of compressor 1 and liquid storage tank 2.

[0071] At least one of the first sound-absorbing layer 3, the second sound-absorbing layer 4, and the third sound-absorbing layer 6 includes at least one of felt, sound-absorbing cotton, and leather.

[0072] The first sound-absorbing layer 3, the second sound-absorbing layer 4, and the third sound-absorbing layer 6 are not limited to the materials mentioned above, but may also be other materials that meet the requirements of this application, without specific limitations here.

[0073] Secondly, this application also discloses an air conditioner outdoor unit, including a housing, a partition 7 and a compressor compartment sound-absorbing component, wherein the partition 7 separates the housing into a fan compartment and a compressor compartment, and a compressor compartment sound-absorbing component is provided inside the compressor compartment;

[0074] The compressor chamber sound-absorbing component is the compressor chamber sound-absorbing component described in any of the above solutions.

[0075] Since the compressor compartment sound-absorbing component has the above-mentioned technical effects, the air conditioner outdoor unit with the compressor compartment sound-absorbing component also has the same technical effects, which will not be elaborated here.

[0076] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed, and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. The scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described application concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A press-chamber sound absorption assembly, characterized by, include: The first sound-absorbing layer (3) is set on the outer peripheral wall of the compressor (1) in the compressor chamber; The second sound-absorbing layer (4) is disposed at the top of the liquid storage tank (2) of the compressor (1) and the compressor chamber; A foam layer (5) is disposed between the second sound-absorbing layer (4) and the electrical control box of the compressor chamber. The foam layer (5) is used to fill the space between the second sound-absorbing layer (4) and the electrical control box. The first sound-absorbing layer (3) and the second sound-absorbing layer (4) are used to absorb high-frequency noise, and the foaming layer (5) is used to absorb mid- and low-frequency noise.

2. The compressor chamber sound-absorbing assembly according to claim 1, characterized in that, It also includes a third sound-absorbing layer (6), which is used to absorb high-frequency noise; The compressor compartment wall includes a first side wall and a second side wall. The first side wall is the side wall of the compressor compartment where the partition (7) is located. The second side wall is the side wall of the compressor compartment formed by the outdoor unit casing and the partition (7). There are three second side walls. The third sound-absorbing layer (6) is provided on the warehouse wall.

3. The compressor chamber sound-absorbing assembly according to claim 2, characterized in that, The foaming layer (5) is disposed between the annular space formed by the first sound-absorbing layer (3) and the third sound-absorbing layer (6).

4. The compressor chamber sound-absorbing assembly according to claim 2 or 3, characterized in that, The foam layer (5) is disposed between the third sound-absorbing layer (6) and the warehouse wall.

5. The compressor chamber sound-absorbing assembly according to any one of claims 1-3, characterized in that, The foaming layer (5) is disposed between the top of the compressor (1) and the liquid storage tank (2) and the side of the second sound-absorbing layer (4) away from the electrical control box.

6. The compressor chamber sound-absorbing assembly according to any one of claims 1-3, characterized in that, The foaming layer (5) is disposed between the outer peripheral wall of the compressor (1) and the first sound-absorbing layer (3).

7. The compressor chamber sound-absorbing assembly according to claim 6, characterized in that, The foam layer (5) is at least one of silicone foam layer, polyurethane foam layer and acrylic foam layer.

8. The compressor chamber sound-absorbing assembly according to claim 2 or 3, characterized in that, The thickness of the first sound-absorbing layer (3) is less than or equal to the thickness of the third sound-absorbing layer (6).

9. The compressor chamber sound-absorbing assembly according to claim 2 or 3, characterized in that, At least one of the first sound-absorbing layer (3), the second sound-absorbing layer (4) and the third sound-absorbing layer (6) includes at least one of felt, sound-absorbing cotton and leather.

10. An outdoor unit for an air conditioner, characterized in that, It includes a shell, a partition (7) and a compressor compartment sound-absorbing component. The partition (7) separates the shell into a fan compartment and a compressor compartment. The compressor compartment sound-absorbing component is installed inside the compressor compartment. The compressor chamber sound-absorbing component is the compressor chamber sound-absorbing component as described in any one of claims 1-9.

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