Compressor sound enclosure and heat pump apparatus

Abstract

The application discloses a compressor sound insulation cover and a heat pump equipment. The sound insulation cover comprises an outer cover, an inner cover, a sound absorption piece and a plurality of vibration isolation blocks. The inner cover is installed on the inner side of the outer cover, and a gap is left between the inner cover and the inner wall of the outer cover. The sound absorption piece is filled in the gap. A plurality of through mounting holes are arranged on the sound absorption piece. The vibration isolation blocks are arranged in the mounting holes. The outer cover and the inner cover are connected through fasteners penetrating the vibration isolation blocks. The application can effectively cut off the sound bridge, eliminate the low-frequency noise amplification problem caused by vibration transmission of the traditional rigid cover, reduce the noise pollution during the operation of the air energy heat pump, and meet the strict requirements of the surrounding environment on noise.

Description

Technical Field

[0001] This application relates to the technical field of soundproof enclosures, and more particularly to a compressor soundproof enclosure and a heat pump device. Background Technology

[0002] In the field of air source heat pump application technology, its matching soundproof enclosure is a key component for achieving noise reduction of the equipment, while also considering the heat pump's heat dissipation performance and adaptability to complex outdoor environments. Existing traditional soundproof enclosures mostly adopt a design combining a single-layer metal structure and composite sponge. However, this type of enclosure has significant technical drawbacks: a prominent sound bridging effect. Because the single-layer metal enclosure is rigidly connected to the heat pump body, the vibrations generated during compressor operation are directly transmitted through the metal structure and further amplified, resulting in poor blocking of low-frequency noise. This frequency band has strong penetrating power, and in noise-sensitive application scenarios such as around swimming pools, it can easily cause disturbances to residents at night, affecting the user experience and scenario adaptability of the air source heat pump. Utility Model Content

[0003] The purpose of this application is to provide a compressor soundproof enclosure and a heat pump device to solve the technical problems existing in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solution: On one hand, a compressor soundproof cover is provided, comprising: an outer cover, an inner side, a sound-absorbing component, and a plurality of vibration-damping blocks. The inner side is installed inside the outer cover, and a gap is left between the inner side and the inner wall of the outer cover. The sound-absorbing component fills the gap. The sound-absorbing component is provided with a plurality of through-holes. The vibration-damping blocks are disposed in the mounting holes. The outer cover and the inner side are connected by fasteners passing through the vibration-damping blocks.

[0005] Furthermore, the inner wall of the outer cover is provided with a positioning member, and a portion of the positioning member abuts against the wall of the mounting hole for positioning.

[0006] Furthermore, the positioning element is an L-shaped support piece, which includes a vertical portion and a horizontal portion perpendicular to the vertical portion. The vertical portion is welded to the inner wall of the outer cover, and the horizontal portion extends into the mounting hole and contacts the hole wall of the mounting hole.

[0007] Furthermore, the outer cover has a thickness of 0.8-2mm, the inner cover has a thickness of 0.5-1mm, and the sound-absorbing part has a thickness of 18-25mm.

[0008] Furthermore, the outer surface of the outer cover is coated with an anti-corrosion layer, and the outer surface of the sound-absorbing component is coated with a moisture-proof layer.

[0009] Furthermore, the inner component has multiple heat dissipation holes.

[0010] Furthermore, the outer cover is made of galvanized steel sheet, the inner cover is made of aluminum alloy sheet, the fastener is made of nylon bolt, the sound-absorbing component is made of glass wool, and the vibration isolation block is made of neoprene rubber block.

[0011] Furthermore, the bottom of the outer cover is provided with a buckle for connecting to the chassis.

[0012] Furthermore, the outer cover includes a front cover plate, a rear cover plate, and a cover plate. The front cover plate and the rear cover plate are connected to form a cover structure with openings at the top and bottom, and the cover plate covers the upper opening.

[0013] On the other hand, a heat pump device is also provided, including: a compressor and a compressor soundproof enclosure as described above, the compressor soundproof enclosure being disposed on the outside of the compressor.

[0014] The beneficial effects of this application are as follows: by cutting off the metal sound bridge through the vibration isolation block, the transmission and amplification of compressor vibration are prevented from the source, which greatly improves the ability to block low-frequency noise. It is especially suitable for noise-sensitive scenarios such as around swimming pools, and can effectively avoid the problem of disturbing the peace at night. The gap design between the outer cover and the inner side and the filling of the sound-absorbing parts further enhance the sound absorption effect on the basis of vibration isolation, and the noise reduction performance is better. Moreover, the overall structure does not affect the heat dissipation channel of the equipment, taking into account both noise reduction and heat dissipation needs, while improving the adaptability of the soundproof cover in the outdoor environment, thereby improving the user experience and scenario adaptability of the air source heat pump equipment. Attached Figure Description

[0015] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a perspective view of the compressor sound insulation cover described in the embodiments of this application; Figure 2 This is a cross-sectional view of the compressor soundproof enclosure described in the embodiments of this application; Figure 3 This is an exploded view of the compressor soundproof enclosure described in the embodiments of this application; Figure 4 This is an exploded view of the outer cover component described in the embodiments of this application; Figure 5 This is an assembly drawing of the compressor soundproof cover and chassis described in the embodiments of this application; Figure 6 This is an internal schematic diagram of the heat pump device described in the embodiments of this application.

[0017] In the diagram: 1. Outer cover; 101. Buckle; 102. Front cover; 103. Rear cover; 104. Cover plate; 2. Inner side parts; 201. Heat dissipation hole; 3. Sound absorption parts; 301. Mounting hole; 4. Vibration isolation block; 5. Fastener; 6. Positioning parts; 7. Chassis. Detailed Implementation

[0018] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] like Figures 1-5 As shown, this embodiment provides a compressor soundproof cover, including: an outer cover 1, an inner side 2, a sound-absorbing component 3, and a plurality of vibration-damping blocks 4. The inner side 2 is installed on the inner side of the outer cover 1, and a gap is left between the inner side 2 and the inner wall of the outer cover 1. The sound-absorbing component 3 fills the gap. The sound-absorbing component 3 is provided with a plurality of through-hole mounting holes 301. The vibration-damping blocks 4 are disposed in the mounting holes 301. The outer cover 1 and the inner side 2 are connected by fasteners 5 passing through the vibration-damping blocks 4.

[0022] Based on the above scheme, the vibration isolation block 4 has high damping characteristics. When the compressor vibrates, the vibration energy needs to be transmitted along the path of compressor-inner part 2-vibration isolation block 4-outer cover 1-heat pump housing. Compared with the rigid connection of traditional single-layer metal cover compressor-metal cover-heat pump housing, the vibration isolation block 4 can effectively absorb a large amount of vibration energy through its own elastic deformation, completely cutting off the rigid sound bridge between metals and preventing vibration from being amplified in the metal link. Especially for low-frequency vibrations of 50-200Hz, the damping characteristics of the vibration isolation block 4 can significantly attenuate the vibration amplitude in this frequency band, weakening the vibration transmission efficiency from the source of the transmission path. A reasonable annular gap is reserved between the outer cover 1 and the inner part 2. This gap not only avoids rigid collisions between the inner and outer covers due to thermal expansion and contraction, which could cause secondary vibrations, but also provides filling space for the sound-absorbing part 3.

[0023] In practical applications, for sensitive scenarios with strict nighttime noise limits, such as around swimming pools, this soundproof enclosure, through the synergistic effect of optimizing the vibration transmission path and the vibration isolation block 4 cutting off the sound bridge, can significantly reduce the low-frequency noise of the compressor during operation from the relatively high level of traditional structures to a range that meets the nighttime noise limit requirements. This completely avoids complaints caused by the strong penetrating power of low-frequency noise transmitted along the compressor-metal structure-heat pump housing. Moreover, the vibration isolation block 4 is detachably connected to the fastener 5 through the through-hole mounting hole 301, allowing for the replacement of vibration isolation blocks 4 with different damping coefficients according to the vibration amplitude characteristics of different compressor models, without the need to redesign the vibration transmission path structure. At the same time, the dimensions of the outer cover 1 and the inner cover 2 can be adapted and adjusted according to the shape of the heat pump compressor, making it suitable for various types of air source heat pumps, such as household split-type and commercial integrated types, significantly expanding the scope of application compared to traditional fixed structure soundproof enclosures.

[0024] Furthermore, the inner wall of the outer casing 1 is provided with a positioning member 6, a portion of which abuts against the wall of the mounting hole 301 for positioning. Firstly, this positioning member 6 effectively ensures the stability and reliability of the vibration isolation structure. By abutting against the wall of the mounting hole 301, it prevents the sound-absorbing component 3 from shifting, thus avoiding the vibration isolation block 4 from deviating from its preset assembly position. This prevents unexpected metal-to-metal contact between the vibration isolation block 4 and the inner and outer casings 1, ensuring that the vibration isolation block 4 is always in the critical position of cutting off the metal acoustic bridge, continuously and stably performing its vibration attenuation function, and avoiding fluctuations in low-frequency noise reduction effect caused by component misalignment.

[0025] Secondly, it can maintain the uniform filling state of the sound-absorbing component 3, ensuring the consistency of the sound absorption effect. The restraining effect of the positioning component 6 on the sound-absorbing component 3 can prevent local accumulation or gaps in the gap, ensuring that the sound-absorbing component 3 always maintains a uniform fit with the inner and outer wall surfaces, avoiding the formation of sound leakage channels in the gap due to the displacement of the sound-absorbing component 3, thereby ensuring the uniform absorption and attenuation capability of the composite sound-absorbing component 3 for noise of different frequency bands, and avoiding local weak areas in the sound absorption effect.

[0026] Furthermore, it can improve the vibration resistance and service life of the overall soundproof enclosure. During the long-term operation of the heat pump, the compressor vibration can easily cause slight shaking of the internal components of the soundproof enclosure. The positioning component 6 can reduce the relative friction loss between the sound-absorbing component 3 and the vibration isolation block 4 by abutting and positioning, reducing the risk of structural loosening or damage caused by long-term shaking of the components, while avoiding secondary vibration noise caused by component displacement, and extending the overall stable operation cycle of the soundproof enclosure.

[0027] Finally, the assembly process can be simplified and production efficiency improved. The positioning component 6 can serve as an assembly benchmark during the assembly stage, directly guiding the precise alignment of the sound-absorbing component 3 and the vibration isolation block 4. There is no need to repeatedly adjust the position of the sound-absorbing component 3 to ensure the coaxiality of the mounting hole 301 and the vibration isolation block 4, reducing calibration steps in the assembly process, reducing the difficulty of manual operation, and improving the assembly accuracy and efficiency of mass production of the soundproof enclosure.

[0028] Furthermore, the positioning element 6 is an L-shaped support piece, which includes a vertical portion and a horizontal portion perpendicular to the vertical portion. The vertical portion is welded to the inner wall of the outer cover 1, and the horizontal portion extends into the mounting hole 301, contacting the hole wall of the mounting hole 301. The L-shaped support piece, serving as the positioning element 6, achieves a dual function through welding fixation and radial limiting. Its vertical portion is rigidly connected to the inner wall of the outer cover 1 by welding, ensuring the stability of the support piece itself and preventing the positioning structure from loosening due to heat pump vibration. The horizontal portion extends perpendicularly to the vertical portion into the through mounting hole 301 of the sound-absorbing element 3, forming a surface or line contact constraint with the hole wall of the mounting hole 301. On the one hand, the radial support of the horizontal section can circumferentially limit the sound-absorbing component 3, preventing it from shifting or sinking within the gap. This forces the sound-absorbing component 3 to fit tightly against the gap between the inner and outer covers during filling, achieving full filling without voids. On the other hand, the L-shaped spatial form creates discontinuous contact between the support plate and the sound-absorbing component 3. The non-contact areas naturally form tiny gaps, which are loose channels reserved for air convection. At the same time, the rigidly welded support plate can transmit and disperse local pressure, preventing loosening noises caused by uneven local force when pressing the sound-absorbing component 3, and maintaining the tightness of the structural assembly.

[0029] Optionally, the outer cover 1 has a thickness of 0.8-2mm, the inner cover 2 has a thickness of 0.5-1mm, and the sound-absorbing component 3 has a thickness of 18-25mm. The outer cover 10.8-2mm thickness can withstand the impact and wind pressure in the outdoor environment, preventing deformation of the cover. At the same time, its rigidity is within a reasonable range, so that it will not generate secondary noise during vibration due to being too thin, nor will it become a rigid carrier for vibration transmission due to being too thick. Together with the vibration isolation block 4, it further weakens the vibration transmission. The inner cover 20.5-1mm thin design reduces the vibration transmission efficiency while ensuring its own ability to support the sound-absorbing component 3. This allows the compressor vibration to be initially attenuated after passing through the inner cover 2, improving the vibration absorption effect of the subsequent vibration isolation block 4. The 318-25mm thickness of the sound-absorbing component is precisely matched to the sound absorption requirements of low-frequency noise in the 50-200Hz range. Noise in this frequency band has a long wavelength, and a sufficiently thick sound-absorbing material is required to achieve effective attenuation. A thinner sound-absorbing layer is prone to insufficient low-frequency sound absorption coefficient. However, the thickness of this solution can maintain the low-frequency sound absorption coefficient at a high level, ensuring the stable vibration blocking and noise absorption dual protection effect formed by the composite sound-absorbing component 3 and the vibration isolation block 4, and avoiding fluctuations in noise reduction performance due to insufficient thickness of the sound-absorbing component 3.

[0030] The outer cover 1 has a thickness of 1.2mm, the inner cover 2 has a thickness of 0.8mm, the sound-absorbing part 3 has a thickness of 20mm, the vibration isolation block 4 has a size of 25mm×25mm×22mm, the corresponding mounting hole 301 must be compatible, and the mounting hole 301 and the vibration isolation block 4 are interference fit.

[0031] Specifically, the outer casing 1 is made of galvanized steel sheet, the inner casing 2 is made of aluminum alloy sheet, the fastener 5 is made of nylon bolts, the sound-absorbing component 3 is made of glass wool, and the vibration damping block 4 is made of neoprene rubber. The outer surface of the outer casing 1 is coated with an anti-corrosion layer, and the outer surface of the sound-absorbing component 3 is coated with a moisture-proof layer. The galvanized steel sheet, with its high structural strength and rigidity, provides a stable supporting frame for the soundproof enclosure, and its galvanized layer can initially resist minor outdoor corrosion. The anti-corrosion layer coated on the outer surface forms a secondary protective barrier, preventing the steel sheet from rusting by isolating it from corrosive media such as moisture and salt.

[0032] Aluminum alloy plates have low density and moderate rigidity, which can reduce their own efficiency in transmitting compressor vibration (the vibration transmission attenuation rate is higher than that of steel plates of the same thickness). On the other hand, their lightweight characteristics reduce the overall load on the heat pump. At the same time, the thermal conductivity of aluminum alloy can help transfer local heat from the compressor to the ventilation channel.

[0033] The nylon material is a non-metallic insulating structure. When it passes through the vibration isolation block 4 to connect the inner and outer cover parts 1, it can avoid the "hidden sound bridge" formed by the direct contact between the metal fastener 5 and the metal cover, and block the transmission of vibration through the fastener 5 across the parts.

[0034] The porous fiber structure of glass wool can convert sound energy into heat energy through the friction and adhesion of sound waves in the pores, and it has a good sound absorption effect, especially for low-frequency noise of 50-200Hz. The outer surface moisture-proof layer can block the intrusion of water vapor in the high humidity environment of the outdoors, and prevent the glass wool from clumping after absorbing moisture, which would lead to a decrease in sound absorption performance.

[0035] Neoprene rubber has a high damping coefficient and elastic recovery. When the compressor vibration is transmitted to the vibration isolation block 4, the rubber block absorbs the vibration energy through its own elastic deformation. At the same time, its aging resistance and oil resistance can adapt to the heat pump operating environment and maintain stable vibration isolation performance for a long time.

[0036] More specifically, the surface of the outer casing 1 is coated with gray fluorocarbon anti-corrosion paint, and the surface of the sound-absorbing component 3 is coated with an acrylic resin moisture-proof coating. The fluorocarbon anti-corrosion paint uses fluorocarbon resin as the core film-forming substance. After being sprayed onto the galvanized steel plate surface of the outer casing 1, it forms a dense, cross-linked protective film. The strong CF bonds in the molecular structure of this film effectively block corrosive media such as moisture, salt, and acid rain in high-humidity outdoor environments from contacting the steel substrate, preventing oxidation failure of the galvanized layer and rusting of the steel plate. Simultaneously, the fluorocarbon resin possesses excellent weather resistance, preventing the paint film from fading, cracking, and peeling after long-term outdoor exposure, maintaining the appearance integrity and structural strength of the outer casing 1. The gray color reduces the heat absorption rate under direct sunlight, minimizing the risk of deformation of the outer casing 1 due to high temperatures.

[0037] Acrylic resin has excellent film-forming properties and low water vapor permeability. When sprayed onto the surface of the glass wool sound absorber 3, it forms a continuous, flexible, and dense film. This film can block water vapor in the high humidity environment of the outdoors from penetrating the internal pores of the glass wool, preventing the glass wool from clumping and bonding between fibers due to moisture absorption. The porous structure of the glass wool is the key to its low-frequency sound absorption. The moisture-proof coating isolates water vapor without blocking its internal pores, ensuring that sound waves can enter the pores normally for frictional dissipation. In addition, the acrylic resin coating has a certain degree of elasticity, which can adapt to the slight deformation of the sound absorber 3 during vibration, preventing the coating from cracking and failing.

[0038] It is worth mentioning that the preload torque of fastener 5 (such as a screw) is set to 5N using a torque wrench. The torque value (m) allows for precise control of the axial pressure of the fastener 5 on the vibration isolator 4. This torque value ensures a stable assembly relationship between the outer casing 1, the inner casing 2, and the vibration isolator 4, preventing component loosening, while also preventing excessive compression of the vibration isolator 4 due to excessive preload, thus avoiding loss of elastic deformation capability. Simultaneously, verification with a feeler gauge ensures that the axial elastic gap is maintained at 1-2 mm, providing necessary elastic movement space for the vibration isolator 4. When the compressor vibrates, the vibration isolator 4 can freely undergo elastic deformation within this gap range, absorbing vibration energy through deformation. The non-rigidly locked assembly state, i.e., without eliminating the axial gap, completely prevents rigid contact between the fastener 5 and the metal casing, thereby cutting off the metal acoustic bridge caused by rigid connection and preventing vibration from being transmitted and amplified through the fastener 5 and the metal structure.

[0039] In some embodiments, the inner component 2 has multiple heat dissipation holes 201 with an opening rate of 20%-30% and a hole diameter between 2-4mm. The arrangement of the heat dissipation holes 201 can be plum blossom-shaped or rectangular, etc. With the fine adjustment of the thickness and density of the sound-absorbing glass wool, it can be adapted to the heat dissipation and sound insulation requirements of air source heat pumps of different power, or optimized for noise in specific frequency bands (such as focusing on high frequency or low frequency), thereby improving the flexibility and applicability of the solution.

[0040] Specifically, the 20%-30% opening ratio, while ensuring the structural strength of the inner component 2, provides sufficient airflow area. The heat generated by the compressor can quickly enter the gap between the outer casing 1 and the inner component 2 through the heat dissipation holes 201, and then be discharged through the top. The small hole diameter design of 2-4mm can reduce the direct penetration of high-frequency noise through the heat dissipation holes 201, and also avoid the aggravation of low-frequency noise leakage due to excessively large hole diameter. The plum blossom or rectangular arrangement can make the airflow distribution more uniform, eliminate heat dissipation dead corners, and improve the overall heat dissipation efficiency.

[0041] The parameters of the heat dissipation hole 201 are complemented and adapted to the fine-tuning of the thickness and density of the sound-absorbing component 3. When adapting to a high-power heat pump, the density of the sound-absorbing component 3 can be fine-tuned while maintaining the upper limit of the opening ratio, ensuring that the heat dissipation airflow passes smoothly through the sound-absorbing layer in the gap. When optimizing for noise in a specific frequency band, if the focus is on low-frequency noise reduction, the thickness of the sound-absorbing component 3 can be increased to maintain the heat dissipation channel in conjunction with the heat dissipation hole 201. If the focus is on high-frequency noise reduction, the density of the sound-absorbing component 3 can be fine-tuned, and the attenuation effect of the small-diameter heat dissipation hole 201 on high-frequency noise can be utilized to form a dual protection of "pore structure attenuation + sound-absorbing component 3 adsorption".

[0042] Preferably, the bottom of the outer cover 1 is provided with a buckle 101, which is used to connect with the chassis 7. The buckle 101 at the bottom of the outer cover 1 adopts an elastic hook or protrusion structure design, and its core achieves quick connection and positioning with the chassis 7 through elastic deformation and mechanical engagement. During assembly, the bottom of the outer cover 1 is aligned with the preset slot or positioning hole of the chassis 7, and axial pressure is applied to make the buckle 101 elastically deform. After the buckle 101 is fully embedded in the slot of the chassis 7, the deformation is restored and mechanical engagement is formed with the slot, realizing the initial fixation of the outer cover 1 and the chassis 7. At the same time, the connection between the buckle 101 and the chassis 7 is a non-rigid interference fit, retaining a small elastic movement margin, which not only avoids the rigid locking of the outer cover 1 and the chassis 7, but also restricts the radial displacement of the outer cover 1 through the elastic constraint of the buckle 101. This connection method eliminates the need for additional metal fasteners 5, thus avoiding the formation of new metal acoustic bridges due to the fasteners 5 connection. At the same time, the elastic properties of the snap-fit ​​101 buffer the vibration transmission during heat pump operation.

[0043] Specifically, the outer cover 1 includes a front cover plate 102, a rear cover plate 103, and a cover plate 104. The front cover plate 102 and the rear cover plate 103 are connected to form a cover structure with openings at the top and bottom. The cover plate 104 covers the upper opening. The front cover plate 102 and the rear cover plate 103 are spliced ​​together by a preset connection structure to form a cylindrical or polygonal cover frame with openings at the top and bottom. The lower opening cooperates with the buckle 101 of the chassis 7 to achieve bottom positioning, and the upper opening reserves space for the installation of the cover plate 104. The splice is sealed with sealing strips or elastic clips to avoid the formation of sound leakage channels due to gaps. The cover plate 104 is attached to the upper opening by bolts or clips 101 to form a complete cover structure. The cover plate 104 is detachable and has a ventilation gap reserved at the connection surface with the cover frame to ensure that the heat dissipation airflow can enter from the bottom and exit from the top. At the same time, the split structure allows the front cover plate 102 and the rear cover plate 103 to be adjusted separately according to the external dimensions of the compressor, while the cover plate 104 is adapted to the upper opening size of the cover frame to achieve structural compatibility of different models of heat pumps.

[0044] On the other hand, a heat pump device is also provided, such as Figure 6 As shown, it includes: a compressor and a compressor soundproof enclosure as described above, the compressor soundproof enclosure being disposed on the outside of the compressor.

[0045] Meanwhile, temperature and humidity sensors and intelligent ventilation components (such as small electric louvers and micro fans) are added to the soundproof enclosure to automatically adjust the ventilation volume based on the temperature and humidity data during heat pump operation. When the temperature is too high, the ventilation volume is increased to enhance heat dissipation; when the humidity is high, the ventilation mode is adjusted to prevent the sound-absorbing materials from getting damp, further improving the adaptability and intelligence level of the soundproof enclosure in complex environments.

[0046] In summary, compared with the closest existing technical solutions, namely the single-layer metal cover and composite sponge solutions, the beneficial effects of this application are significant and comprehensive. A breakthrough in sound insulation performance across the entire frequency band has been achieved, with a measured total sound insulation level of 94.8dB, an improvement of 7.5dB compared to existing solutions. This effectively reduces the noise level of the air source heat pump at 1m away from the level of a high-powered washing machine (≈60dB) to the level of ambient background noise (≈45dB), completely solving the nuisance caused by low-frequency humming and mid-to-high-frequency sharp noise. The mid-to-high frequency range (500~4000Hz) is particularly advantageous, with a sound insulation level of 62.5dB at 1000Hz (an improvement of 26.3dB) and 79.1dB at 2000Hz (an improvement of 23.8dB). This effectively suppresses sharp and piercing noises such as fan airflow noise and compressor electromagnetic whistling. Although the sound insulation level at 200Hz is close to that of existing solutions (24.7dB vs 24.6dB) in the low frequency range (200~315Hz), the sound insulation level at 200Hz is similar to that of existing solutions (24.7dB vs 24.6dB), but the sound bridge is cut off by elastic support to eliminate metal resonance noise, resulting in a more muffled and softer subjective listening experience. It is virtually imperceptible at 5m away at night. In terms of weather resistance and longevity, this application effectively solves the drawback of existing sound-absorbing cotton solutions where the sound absorption performance decreases by more than 30% in one year in the high humidity environment of swimming pools (the sound insulation of mid-to-high frequency decreases by 10~15dB). Through the design of moisture-proof coated glass wool and double-layer metal moisture-proof sandwich, the glass wool surface is sprayed with acrylic resin coating (water absorption rate ≤5%), and the outer galvanized plate and inner aluminum alloy mesh plate form a moisture barrier, which can isolate the pool moisture and ensure that the sound-absorbing cotton is dry for a long time. This completely avoids the maintenance dilemma of short-term effectiveness and gradual failure over the years, and ensures long-term stable sound insulation performance.

[0047] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0048] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0050] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A compressor soundproof enclosure, characterized in that, include: The outer cover (1), inner side (2), sound-absorbing component (3), and multiple vibration isolation blocks (4) are provided. The inner side (2) is installed on the inner side of the outer cover (1), and there is a gap between the inner side (2) and the inner wall of the outer cover (1). The sound-absorbing component (3) fills the gap. The sound-absorbing component (3) is provided with multiple through-holes (301). The vibration isolation blocks (4) are provided in the mounting holes (301). The outer cover (1) and the inner side (2) are connected by fasteners (5) passing through the vibration isolation blocks (4).

2. The compressor soundproof cover according to claim 1, characterized in that, The inner wall of the outer cover (1) is provided with a positioning member (6), and part of the positioning member (6) abuts against the wall of the mounting hole (301) for positioning.

3. The compressor soundproof cover according to claim 2, characterized in that, The positioning member (6) is an L-shaped support piece, which includes a vertical part and a horizontal part perpendicular to the vertical part. The vertical part is welded to the inner wall of the outer cover (1), and the horizontal part extends into the mounting hole (301) and contacts the hole wall of the mounting hole (301).

4. The compressor soundproof enclosure according to any one of claims 1-3, characterized in that, The outer cover (1) has a thickness of 0.8-2mm, the inner cover (2) has a thickness of 0.5-1mm, and the sound-absorbing part (3) has a thickness of 18-25mm.

5. The compressor soundproof enclosure according to any one of claims 1-3, characterized in that, The outer surface of the outer cover (1) is coated with an anti-corrosion layer, and the outer surface of the sound-absorbing component (3) is coated with a moisture-proof layer.

6. The compressor soundproof enclosure according to any one of claims 1-3, characterized in that, The inner part (2) has multiple heat dissipation holes (201).

7. The compressor soundproof enclosure according to any one of claims 1-3, characterized in that, The outer cover (1) is a galvanized steel plate, the inner side part (2) is an aluminum alloy plate, the fastener (5) is a nylon bolt, the sound-absorbing part (3) is glass wool, and the vibration isolation block (4) is a neoprene rubber block.

8. The compressor soundproof enclosure according to any one of claims 1-3, characterized in that, The bottom of the outer cover (1) is provided with a buckle (101), which is used to connect with the chassis (7).

9. The compressor soundproof enclosure according to any one of claims 1-3, characterized in that, The outer cover (1) includes a front cover plate (102), a rear cover plate (103) and a cover plate (104). The front cover plate (102) and the rear cover plate (103) are connected to form a cover structure with openings at the top and bottom. The cover plate (104) covers the upper opening.

10. A heat pump device, characterized in that, include: The compressor and the compressor soundproof enclosure as described in any one of claims 1-9, wherein the compressor soundproof enclosure is disposed on the outside of the compressor.

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