Compressor silencing cover and air conditioner

By designing a compressor silence cover composed of sound insulation layer, sound absorbing layer and dispersing layer, the problem of compressor noise pollution in heat pump air conditioners is solved, and the noise is effectively reduced and eliminated, improving the user experience.

CN119934589APending Publication Date: 2025-05-06NINGBO AUX ELECTRIC CO LTD +1
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Patent Information

Application Number
CN202311412505.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-10-27
Publication Date
2025-05-06

AI Technical Summary

Technical Problem

In existing heat pump air conditioners, the noise generated by the compressor during operation is relatively high, which affects the user experience and leads to noise pollution.

Method used

A compressor silence cover is designed. The cover is composed of a sound insulation layer, a sound absorbing layer and a sound absorbing layer arranged in sequence from the outside to the inside. A housing cavity is provided in the dispersed sound layer to accommodate the compressor, and noise is blocked through the dispersed sound layer, the sound absorbing layer absorbs and the sound insulation layer to prevent it from being transmitted to the outside world.

Benefits of technology

While ensuring the normal operation of the compressor, the noise generated by the compressor is significantly reduced or even eliminated, avoid noise pollution, and improve user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a compressor silencing cover and an air conditioner, and relates to the technical field of air conditioners. The compressor silencing cover comprises a cover body. The cover body comprises a sound insulation layer, a sound absorption layer and a sound diffusion layer, the sound insulation layer, the sound absorption layer and the sound diffusion layer are sequentially stacked from outside to inside, a containing cavity is formed in the sound diffusion layer, the containing cavity is used for containing the compressor, the sound diffusion layer is used for scattering noise generated by the compressor, the sound absorption layer is used for absorbing the scattered noise, and the sound insulation layer is used for preventing the noise from being transmitted to the outside. Compared with the prior art, due to the fact that the sound insulation layer, the sound absorption layer and the sound scattering layer which are sequentially stacked from outside to inside and the containing cavity used for containing the compressor are adopted in the silencing cover of the compressor, under the condition that normal operation of the compressor is guaranteed, noise generated by the compressor can be reduced or even eliminated, and noise pollution is avoided; and user experience is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a compressor silencer cover and an air conditioner. Background Art

[0002] At present, with the continuous advancement of science, people's requirements for environmental protection are getting higher and higher. In this regard, heat pump air conditioners have gradually come into people's view. They use solar energy resources stored in the surface soil, air and water as cold and heat sources, without combustion, smoke exhaust, waste, pollution, and green environmental protection. In heat pump air conditioners, the compressor is an indispensable part, which is used to compress the heat source in order to achieve heating or cooling functions, but the compressor will produce a lot of noise during operation, affecting the user experience. Summary of the invention

[0003] The problem solved by the present invention is how to reduce or even eliminate the noise generated by the compressor while ensuring the normal operation of the compressor, avoid noise pollution, and improve user experience.

[0004] To solve the above problems, the technical solution of the present invention is achieved as follows:

[0005] In a first aspect, the present invention provides a compressor silencer cover, comprising a cover body, the cover body comprising a sound insulation layer, a sound absorption layer and a sound dispersion layer, the sound insulation layer, the sound absorption layer and the sound dispersion layer are sequentially stacked from the outside to the inside, a containing cavity is arranged in the sound dispersion layer, the containing cavity is used to contain the compressor, the sound dispersion layer is used to disperse the noise emitted by the compressor, the sound absorption layer is used to absorb the dispersed noise, and the sound insulation layer is used to prevent the noise from being transmitted to the outside. Compared with the prior art, the compressor silencer cover provided by the present invention adopts a sound insulation layer, a sound absorption layer and a sound dispersion layer sequentially stacked from the outside to the inside and a containing cavity for containing the compressor, so it can reduce or even eliminate the noise generated by the compressor while ensuring the normal operation of the compressor, avoid noise pollution, and improve user experience.

[0006] Furthermore, one side of the sound absorbing layer is bonded to the sound dispersing layer, and the other side is bonded to the sound insulation layer, and the sound insulation layer, the sound absorbing layer and the sound dispersing layer are bonded, riveted or screwed to fix the relative positions of the sound insulation layer, the sound absorbing layer and the sound dispersing layer to prevent the relative displacement of the sound insulation layer, the sound absorbing layer and the sound dispersing layer.

[0007] Furthermore, the sound insulation layer includes a first sound insulation layer, the first sound insulation layer is made of metal material, and the thickness of the first sound insulation layer ranges from 0.5 mm to 4 mm. Reasonable material and thickness of the first sound insulation layer can improve the sound insulation effect, prevent noise from spreading outward, and avoid noise pollution.

[0008] Furthermore, the sound insulation layer also includes a second sound insulation layer, which is stacked with the first sound insulation layer, and is arranged between the first sound insulation layer and the sound absorbing layer. The second sound insulation layer is made of sound insulation cotton material, and the thickness of the second sound insulation layer ranges from 1 mm to 5 mm. Reasonable material and thickness of the second sound insulation layer can improve the noise reflection and absorption effect, and reduce the noise that continues to spread outward.

[0009] Furthermore, the sound absorbing layer is made of sound-absorbing cotton material, and the thickness of the sound absorbing layer ranges from 2 mm to 8 mm. Reasonable material and thickness of the sound absorbing layer can improve the sound absorption effect and play a better noise reduction role.

[0010] Furthermore, the sound diffusion layer is provided with a plurality of sound-absorbing holes, which are arranged in a honeycomb shape. The plurality of sound-absorbing holes work together to allow the sound waves of the noise to pass through, and disperse the sound waves during the passing process, so that the noise is evenly diffused outward.

[0011] Furthermore, the sound diffusion layer is made of metal material, and the thickness of the sound diffusion layer ranges from 0.5 mm to 4 mm. Reasonable material and thickness of the sound diffusion layer can improve the uniformity of the noise after dispersion, thereby improving the sound diffusion effect, which is conducive to the subsequent sound absorption layer to absorb the noise.

[0012] Furthermore, the compressor silencer cover also includes a base, the cover body is arranged on the base and connected to the base, and the base is used to carry and fix the compressor. The cover body is used to shield and protect the compressor, and the cover body is also used to reduce the noise generated by the compressor when it is running.

[0013] Further, the cover body includes a first side plate, a second side plate, a third side plate, a fourth side plate and a top plate, the first side plate, the second side plate, the third side plate and the fourth side plate are connected end to end and are all connected to the base, the top plate is simultaneously covered on the first side plate, the second side plate, the third side plate and the fourth side plate, the top plate is provided with a clearance opening, the clearance opening is communicated with the accommodating cavity, and the clearance opening is used for the pipeline of the compressor to pass through, so as to ensure the normal operation of the compressor.

[0014] Furthermore, the top plate includes a first plate, a second plate and a third plate, the first plate is connected to the first side plate, the second side plate and the third side plate, the second plate is connected to the third side plate and the fourth side plate, the third plate is connected to the first side plate and the fourth side plate, and the first plate, the second plate and the third plate together form a clearance opening for easy installation and maintenance.

[0015] In a second aspect, the present invention provides an air conditioner, comprising a casing, a compressor and the above-mentioned compressor silencer cover, the compressor silencer cover comprising a cover body, the cover body comprising a sound insulation layer, a sound absorption layer and a sound dispersion layer, the sound insulation layer, the sound absorption layer and the sound dispersion layer are stacked from the outside to the inside, a containing cavity is arranged in the sound dispersion layer, the sound dispersion layer is used to disperse the noise emitted by the compressor, the sound absorption layer is used to absorb the dispersed noise, the sound insulation layer is used to prevent the noise from being transmitted to the outside, the compressor silencer cover is installed in the casing, and the compressor is installed in the containing cavity. The air conditioner can reduce or even eliminate the noise generated by the compressor while ensuring the normal operation of the compressor, avoid noise pollution, and improve user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a compressor silencer cover according to a first embodiment of the present invention;

[0017] Figure 2 is a cross-sectional view of a compressor muffler cover according to a first embodiment of the present invention;

[0018] Figure 3 is a schematic structural diagram of a sound insulation layer in a compressor silencer cover according to a first embodiment of the present invention;

[0019] Figure 4 is a schematic structural diagram of a sound dissipation layer in a compressor silencer cover according to a first embodiment of the present invention;

[0020] Figure 5 is an exploded view of a compressor muffler cover according to a first embodiment of the present invention;

[0021] Figure 6 2 is a schematic structural diagram of an air conditioner according to a second embodiment of the present invention.

[0022] Description of reference numerals:

[0023] 10-outdoor unit; 100-compressor silencer cover; 110-cover body; 111-sound insulation layer; 1111-first sound insulation layer; 1112-second sound insulation layer; 112-sound absorption layer; 113-sound dispersion layer; 1131-accommodation cavity; 1132-silencer hole; 114-first side panel; 115-second side panel; 116-third side panel; 117-fourth side panel; 118-top panel; 1181-first panel; 1182-second panel; 1183-third panel; 119-giving way; 120-base; 200-compressor; 300-casing; 400-fan. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] First embodiment

[0026] Please refer to Figures 1 to 5 The embodiment of the present invention provides a compressor silencer cover 100, which is used to cover the outside of the compressor 200. It can reduce or even eliminate the noise generated by the compressor 200 while ensuring the normal operation of the compressor 200, avoid noise pollution, and improve user experience.

[0027] It should be noted that the compressor silencer 100 is applied to the compressor 200, and the compressor 200 is installed in the compressor silencer 100. The compressor silencer 100 can shield and protect the compressor 200 on the one hand, and on the other hand, can reduce the noise generated when the compressor 200 is running to avoid noise pollution.

[0028] In this embodiment, the compressor 200 is applied to a heat pump air conditioner. The compressor 200 is installed in the heat pump air conditioner and is used to compress the heat source to achieve the heating or cooling function of the heat pump air conditioner. However, this is not limited to this. In other embodiments, the compressor 200 can be applied to a compression air conditioner or an absorption air conditioner. The application scenario of the compressor 200 is not specifically limited.

[0029] The compressor silencer cover 100 includes a cover body 110 and a base 120. The cover body 110 is covered on the base 120 and connected to the base 120. The base 120 is used to carry and fix the compressor 200. The base 120 is also used to support and fix the cover body 110 to fix the relative position of the compressor 200 and the cover body 110, ensuring that the cover body 110 can be stably covered outside the compressor 200. The cover body 110 is used to shield and protect the compressor 200. The cover body 110 is also used to reduce the noise generated by the compressor 200 when it is running.

[0030] The cover body 110 includes a sound insulation layer 111, a sound absorption layer 112, and a sound dispersion layer 113. The sound insulation layer 111, the sound absorption layer 112, and the sound dispersion layer 113 are stacked in sequence from the outside to the inside, that is, the sound insulation layer 111 is the outermost layer of the cover body 110, the sound absorption layer 112 is the middle layer of the cover body 110, and the sound dispersion layer 113 is the innermost layer of the cover body 110. Specifically, a receiving cavity 1131 is provided in the sound dispersion layer 113, and the receiving cavity 1131 is used to receive the compressor 200, and the compressor 200 can stably operate in the receiving cavity 1131. The sound dispersion layer 113 is used to disperse the noise emitted by the compressor 200, the sound absorption layer 112 is used to absorb the dispersed noise, and the sound insulation layer 111 is used to prevent the noise from being transmitted to the outside. The sound dispersion layer 113, the sound absorption layer 112 and the sound insulation layer 111 work together to reduce or even eliminate the noise generated by the compressor 200 while ensuring the normal operation of the compressor 200, avoid noise pollution, and improve user experience.

[0031] It is worth noting that the compressor 200 generates noise during operation in the accommodating cavity 1131. The noise diffuses from the inside to the outside and passes through the sound scattering layer 113, the sound absorbing layer 112 and the sound insulation layer 111 in sequence. When the noise passes through the sound scattering layer 113, the sound scattering layer 113 can disperse the noise so that the noise is evenly distributed and diffuses outward, thereby improving the subsequent sound absorption effect; when the dispersed noise passes through the sound absorbing layer 112, its sound waves will interact with the fibers, pores and other structures in the sound absorbing layer 112, thereby converting the sound wave energy into heat energy or mechanical energy, reducing the reflection and propagation of the sound waves, and thus achieving the sound absorption effect; the noise that continues to diffuse outward after the sound absorption is completed is weaker. When this part of the noise reaches the sound insulation layer 111, the sound insulation layer 111 will block and reflect it to prevent it from continuing to diffuse outward. In this way, in the process of noise diffusing outward, the sound dispersion layer 113, the sound absorption layer 112 and the sound insulation layer 111 successively disperse, absorb and block the noise, so as to reduce or even eliminate the noise generated by the compressor 200, avoid noise pollution, and achieve good noise reduction effect.

[0032] Furthermore, one side of the sound absorbing layer 112 is bonded to the sound dissipating layer 113, and the other side is bonded to the sound insulating layer 111, that is, there is no gap between the sound insulating layer 111, the sound absorbing layer 112 and the sound dissipating layer 113, so as to reduce the space occupied by the cover body 110 and improve the noise reduction effect.

[0033] In this embodiment, the sound insulation layer 111, the sound absorption layer 112 and the sound dispersion layer 113 are bonded to fix the relative positions of the sound insulation layer 111, the sound absorption layer 112 and the sound dispersion layer 113 to prevent the sound insulation layer 111, the sound absorption layer 112 and the sound dispersion layer 113 from relative displacement, but it is not limited to this. In other embodiments, the sound insulation layer 111, the sound absorption layer 112 and the sound dispersion layer 113 can be riveted or screwed, and the connection method of the sound insulation layer 111, the sound absorption layer 112 and the sound dispersion layer 113 is not specifically limited.

[0034] The sound insulation layer 111 includes a first sound insulation layer 1111 and a second sound insulation layer 1112. The second sound insulation layer 1112 is stacked with the first sound insulation layer 1111, the second sound insulation layer 1112 is arranged between the first sound insulation layer 1111 and the sound absorbing layer 112, and the first sound insulation layer 1111 and the second sound insulation layer 1112 are bonded and fixed. Specifically, in the process of noise diffusing outward, the noise will pass through the second sound insulation layer 1112 and the first sound insulation layer 1111 in sequence, wherein the first sound insulation layer 1111 is used to reflect and absorb the noise, and the second sound insulation layer 1112 is used to block the noise to prevent the noise from continuing to diffuse outward.

[0035] Preferably, the first sound insulation layer 1111 is made of metal material, and the thickness of the first sound insulation layer 1111 ranges from 0.5 mm to 4 mm. Reasonable material and thickness of the first sound insulation layer 1111 can improve the sound insulation effect, prevent noise from spreading outward, and avoid noise pollution.

[0036] In this embodiment, the first sound insulation layer 1111 is a steel plate, and the thickness of the first sound insulation layer 1111 is 2 mm, but it is not limited to this. In other embodiments, the first sound insulation layer 1111 may also be an aluminum plate or other alloy plate; the thickness of the first sound insulation layer 1111 may be 0.5 mm or 4 mm; the material and thickness of the first sound insulation layer 1111 are not specifically limited.

[0037] Preferably, the second sound insulation layer 1112 is made of sound insulation cotton material, and the thickness of the second sound insulation layer 1112 ranges from 1 mm to 5 mm. The reasonable material and thickness of the second sound insulation layer 1112 can improve the noise reflection and absorption effect and reduce the noise that continues to diffuse outward. Specifically, when the sound waves of the noise diffuse to the sound insulation cotton, part of the sound wave energy will be reflected, part of the sound wave energy will be absorbed (the sound wave interacts with the fiber, pores and other structures in the sound insulation cotton and is converted into heat energy or mechanical energy), and the remaining small part of the sound wave energy will pass through the sound insulation cotton and reach the first sound insulation layer 1111.

[0038] In this embodiment, the thickness of the second sound insulation layer 1112 is 2 mm, but it is not limited thereto. In other embodiments, the thickness of the second sound insulation layer 1112 may be 1 mm or 5 mm. The thickness of the second sound insulation layer 1112 is not specifically limited.

[0039] Preferably, the sound absorbing layer 112 is made of sound-absorbing cotton material, and the thickness of the sound absorbing layer 112 ranges from 2 mm to 8 mm. Reasonable material and thickness of the sound absorbing layer 112 can improve the sound absorption effect and play a good noise reduction role. Specifically, when the sound waves of the noise spread to the sound-absorbing cotton, most of the sound waves will interact with the fibers, pores and other structures in the sound-absorbing cotton, thereby converting the sound wave energy into heat energy or mechanical energy, and the remaining small part of the sound waves will pass through the sound absorbing layer 112 and reach the sound insulation layer 111.

[0040] In this embodiment, the thickness of the sound absorbing layer 112 is 4 mm, but it is not limited thereto. In other embodiments, the thickness of the sound absorbing layer 112 may be 2 mm or 8 mm. The thickness of the sound absorbing layer 112 is not specifically limited.

[0041] Preferably, the sound dispersion layer 113 is made of metal material, and the thickness of the sound dispersion layer 113 ranges from 0.5 mm to 4 mm. Reasonable material and thickness of the sound dispersion layer 113 can improve the uniformity of the noise after dispersion, thereby improving the sound dispersion effect and facilitating the subsequent sound absorption layer 112 to absorb the noise.

[0042] In this embodiment, the sound diffusion layer 113 is a steel plate, and the thickness of the sound diffusion layer 113 is 2 mm, but it is not limited to this. In other embodiments, the sound diffusion layer 113 can also be an aluminum plate or other alloy plate; the thickness of the sound diffusion layer 113 can be 0.5 mm or 4 mm; the material and thickness of the sound diffusion layer 113 are not specifically limited.

[0043] It is worth noting that the sound dissipating layer 113 is provided with a plurality of silencer holes 1132, which are arranged in a honeycomb shape. The plurality of silencer holes 1132 are all connected to the accommodating cavity 1131, and the plurality of silencer holes 1132 work together to allow the sound waves of noise to pass through, and disperse the sound waves in the process of passing through, so that the noise can be evenly diffused outward.

[0044] The cover body 110 is in a rectangular shape, and includes a first side plate 114, a second side plate 115, a third side plate 116, a fourth side plate 117, and a top plate 118. The first side plate 114, the second side plate 115, the third side plate 116, and the fourth side plate 117 are connected end to end, and are all connected to the base 120. The first side plate 114, the second side plate 115, the third side plate 116, and the fourth side plate 117 together enclose a receiving cavity 1131, and the base 120 is used to fix the relative positions of the first side plate 114, the second side plate 115, the third side plate 116, and the fourth side plate 117. The top plate 118 is simultaneously covered on the first side plate 114, the second side plate 115, the third side plate 116 and the fourth side plate 117. The top plate 118, the first side plate 114, the second side plate 115, the third side plate 116 and the fourth side plate 117 work together to shield, protect and reduce noise of the compressor 200. Specifically, the top plate 118 is provided with a clearance opening 119, which is communicated with the accommodating cavity 1131. The clearance opening 119 is used for the pipeline of the compressor 200 to pass through, so as to ensure that the compressor 200 can operate normally.

[0045] It should be noted that the first side panel 114, the second side panel 115, the third side panel 116, the fourth side panel 117 and the top panel 118 are all three-layer structures, that is, the first side panel 114, the second side panel 115, the third side panel 116, the fourth side panel 117 and the top panel 118 all include a sound insulation layer 111, a sound absorption layer 112 and a sound dispersion layer 113. In the process of noise diffusing outward, the first side panel 114, the second side panel 115, the third side panel 116, the fourth side panel 117 and the top panel 118 can all break up, absorb and block the noise, so as to reduce or even eliminate the noise generated by the compressor 200, avoid noise pollution, and improve user experience.

[0046] The top plate 118 includes a first plate 1181, a second plate 1182 and a third plate 1183. The first plate 1181 is connected to the first side plate 114, the second side plate 115 and the third side plate 116, which are used together to fix the relative position of the first plate 1181; the second plate 1182 is connected to the third side plate 116 and the fourth side plate 117, which are used together to fix the relative position of the second plate 1182; the third plate 1183 is connected to the first side plate 114 and the fourth side plate 117, which are used together to fix the relative position of the third plate 1183. Specifically, the first plate 1181, the second plate 1182 and the third plate 1183 together form a clearance opening 119 for easy installation and maintenance.

[0047] Similarly, the first plate 1181 , the second plate 1182 and the third plate 1183 are all three-layer structures, that is, the first plate 1181 , the second plate 1182 and the third plate 1183 all include a sound insulation layer 111 , a sound absorption layer 112 and a sound dispersion layer 113 .

[0048] The compressor silencer cover 100 described in the embodiment of the present invention, the cover body 110 includes a sound insulation layer 111, a sound absorption layer 112 and a sound dispersion layer 113, the sound insulation layer 111, the sound absorption layer 112 and the sound dispersion layer 113 are stacked in sequence from the outside to the inside, and a receiving cavity 1131 is provided in the sound dispersion layer 113, the receiving cavity 1131 is used to receive the compressor 200, the sound dispersion layer 113 is used to disperse the noise emitted by the compressor 200, the sound absorption layer 112 is used to absorb the dispersed noise, and the sound insulation layer 111 is used to prevent the noise from being transmitted to the outside. Compared with the prior art, the compressor silencer cover 100 provided by the present invention adopts the sound insulation layer 111, the sound absorption layer 112 and the sound dispersion layer 113 stacked in sequence from the outside to the inside and the receiving cavity 1131 for receiving the compressor 200, so it can reduce or even eliminate the noise generated by the compressor 200 while ensuring the normal operation of the compressor 200, avoid noise pollution, and improve user experience.

[0049] Second embodiment

[0050] Please refer to Figure 6 The present invention provides an air conditioner (not shown) for controlling indoor temperature. The air conditioner includes an indoor unit (not shown) and an outdoor unit 10, and the outdoor unit 10 includes a housing 300, a compressor 200, a compressor silencer cover 100, and a fan 400. The basic structure and principle of the compressor silencer cover 100 and the technical effects produced are the same as those of the first embodiment. For the sake of brief description, for the parts not mentioned in this embodiment, reference can be made to the corresponding contents in the first embodiment.

[0051] In this embodiment, the air conditioner is a heat pump air conditioner, and the indoor unit is connected to the outdoor unit 10. The indoor unit is used to blow hot air or cold air into the room to achieve the function of heating or cooling, thereby achieving the effect of regulating the indoor temperature. The outdoor unit 10 is used to compress and exchange heat sources to ensure the stability of regulating the indoor temperature.

[0052] Furthermore, the compressor silencer cover 100 is installed in the housing 300, and the housing 300 is used to fix the position of the compressor silencer cover 100 and to shield and protect the compressor silencer cover 100. The compressor 200 is installed in the accommodating cavity 1131 of the compressor silencer cover 100, and the compressor silencer cover 100 is used to silence and reduce the noise of the compressor 200 to avoid noise pollution and improve the user experience.

[0053] Specifically, the fan 400 is installed in the casing 300, and the fan 400 is used to realize the heat exchange function of the heat source. At this time, the first sound insulation layer 1111 of the second side panel 115 in the compressor silencer 100 serves as the middle partition of the casing 300, which is used to separate the fan 400 and the compressor 200 to ensure the stability of the operation of the outdoor unit 10.

[0054] The beneficial effects of the air conditioner described in the embodiment of the present invention are the same as those of the first embodiment, and will not be described in detail herein.

[0055] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A compressor silencer cover, characterized in that: The invention comprises a cover body (110), wherein the cover body (110) comprises a sound insulation layer (111), a sound absorption layer (112) and a sound dispersion layer (113), wherein the sound insulation layer (111), the sound absorption layer (112) and the sound dispersion layer (113) are sequentially stacked from the outside to the inside, wherein a receiving cavity (1131) is provided in the sound dispersion layer (113), wherein the receiving cavity (1131) is used to receive a compressor (200), wherein the sound dispersion layer (113) is used to disperse the noise emitted by the compressor (200), wherein the sound absorption layer (112) is used to absorb the dispersed noise, and wherein the sound insulation layer (111) is used to prevent the noise from being transmitted to the outside.

2. The compressor silencer cover according to claim 1, characterized in that: One side of the sound absorbing layer (112) is bonded to the sound scattering layer (113), and the other side is bonded to the sound insulation layer (111); the sound insulation layer (111), the sound absorbing layer (112) and the sound scattering layer (113) are bonded, riveted or screwed.

3. The compressor silencer cover according to claim 1, characterized in that: The sound insulation layer (111) comprises a first sound insulation layer (1111), the first sound insulation layer (1111) is made of a metal material, and the thickness of the first sound insulation layer (1111) ranges from 0.5 mm to 4 mm.

4. The compressor silencer cover according to claim 3, characterized in that: The sound insulation layer (111) further comprises a second sound insulation layer (1112), wherein the second sound insulation layer (1112) is stacked with the first sound insulation layer (1111), the second sound insulation layer (1112) is arranged between the first sound insulation layer (1111) and the sound absorbing layer (112), the second sound insulation layer (1112) is made of a sound insulation cotton material, and the thickness of the second sound insulation layer (1112) ranges from 1 mm to 5 mm.

5. The compressor silencer cover according to claim 1, characterized in that: The sound absorbing layer (112) is made of a sound-absorbing cotton material, and the thickness of the sound absorbing layer (112) ranges from 2 mm to 8 mm.

6. The compressor silencer cover according to claim 1, characterized in that: The sound diffusion layer (113) is provided with a plurality of sound absorbing holes (1132), and the plurality of sound absorbing holes (1132) are arranged in a honeycomb shape.

7. The compressor silencer cover according to claim 1, characterized in that: The sound diffusion layer (113) is made of a metal material, and the thickness of the sound diffusion layer (113) ranges from 0.5 mm to 4 mm.

8. The compressor silencer cover according to claim 1, characterized in that: The compressor silencer cover also includes a base (120), the cover body (110) is disposed on the base (120) and is connected to the base (120), and the base (120) is used to support and fix the compressor (200).

9. The compressor silencer cover according to claim 8, characterized in that: The cover body (110) comprises a first side plate (114), a second side plate (115), a third side plate (116), a fourth side plate (117) and a top plate (118); the first side plate (114), the second side plate (115), the third side plate (116) and the fourth side plate (117) are connected end to end and are all connected to the base (120); the top plate (118) is simultaneously covered on the first side plate (114), the second side plate (115), the third side plate (116) and the fourth side plate (117); the top plate (118) is provided with a clearance opening (119); the clearance opening (119) is communicated with the accommodating cavity (1131); the clearance opening (119) is used for allowing a pipeline of the compressor (200) to pass through.

10. The compressor silencer cover according to claim 9, characterized in that: The top plate (118) comprises a first plate (1181), a second plate (1182) and a third plate (1183); the first plate (1181) is connected to the first side plate (114), the second side plate (115) and the third side plate (116); the second plate (1182) is connected to the third side plate (116) and the fourth side plate (117); the third plate (1183) is connected to the first side plate (114) and the fourth side plate (117); the first plate (1181), the second plate (1182) and the third plate (1183) together form the clearance opening (119).

11. An air conditioner, characterized in that: It comprises a casing (300), a compressor (200), and a compressor silencer cover according to any one of claims 1 to 10, wherein the compressor silencer cover is installed in the casing (300), and the compressor (200) is installed in the accommodating cavity (1131).