A quiet water chilling unit with noise suppression structure

Abstract

This utility model belongs to the technical field of chiller units and discloses a silent chiller unit with a noise suppression structure. It includes an external sound insulation structure, an internal sound insulation structure fixedly connected to the bottom wall of the inner cavity of the external sound insulation structure by bolts, and a chiller unit body housed inside the external sound insulation structure. An air-cooled component is fixedly connected to the upper end of the chiller unit body by bolts. The external sound insulation structure utilizes a steel frame and solid wood panels to form a basic sound barrier, and double-layered soundproof glass further blocks noise, facilitating powerful noise reduction from the outside of the chiller unit. The internal sound insulation component, in conjunction with pipe sound insulation components, uses sound-absorbing cotton and perforated sound-absorbing panels to form a composite structure, specifically absorbing high-frequency noise from the compressor. Centrifugal glass wool and damping sound insulation felt suppress pipe vibration noise, facilitating noise reduction from the inside of the chiller unit for components prone to generating noise.

Description

Technical Field

[0001] This utility model relates to the field of chiller technology, specifically to a silent chiller with a noise suppression structure. Background Technology

[0002] A chiller is a refrigeration unit that transfers heat through a refrigerant cycle and phase change, thereby continuously providing low-temperature chilled water. With the acceleration of urbanization and the vigorous development of industrial production, the application scenarios of chillers are becoming increasingly widespread. They are not only commonly used in central air conditioning systems of large commercial buildings and equipment cooling in data centers, but also play a key role in industrial fields such as electronics manufacturing, precision instrument processing, and biopharmaceuticals. However, existing chillers generate a lot of noise during operation, and this problem has gradually become prominent and brought about many adverse effects.

[0003] The noise mainly comes from the mechanical vibration, fluid flow and electromagnetic effects of various components during operation. The core noise sources include compressors, water pumps, fans and pipes. When the chiller is running, the high decibel noise it generates will be transmitted through walls and pipes, reducing environmental comfort. Long-term exposure to such an environment may also affect people's hearing health and mental state.

[0004] Chinese Utility Model Patent Publication No. CN214250198U discloses an air-cooled heat pump modular unit, including a body. The interior of the body is divided into a first working chamber and a second working chamber from top to bottom by a partition. A finned heat exchanger and a working box are fixedly installed from left to right on the bottom of the inner wall of the first working chamber. A compressor, a plate heat exchanger, and a water tank are fixedly installed from left to right on the bottom of the inner wall of the second working chamber. One end of the finned heat exchanger is fixedly connected to the middle of one side of the working box through a first connecting pipe. This air-cooled heat pump modular unit has high energy efficiency in cooling operation. Compared with the single cooling function of a chiller unit using evaporative condensation, it adds a heating mode, broadens the application range, is suitable for modular expansion, is easy to install and maintain, the installation of a soundproof plate reduces the operating noise of the body, and the installation of a water collection tank ensures that no condensation drips inside the body and is simple and does not block the air duct.

[0005] Although the aforementioned patents have adopted some simple noise reduction measures, such as using soundproof panels, the sound insulation effect is limited and it is difficult to effectively block the mid-to-high frequency noise of the compressor. Therefore, they cannot fundamentally solve the noise problem of the chiller unit and cannot meet the increasingly stringent noise control requirements and the quietness requirements in different scenarios.

[0006] Based on this, this utility model designs a silent water chiller unit with a noise suppression structure to solve the above problems. Utility Model Content

[0007] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a silent water chiller unit with a noise suppression structure.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A silent chiller unit with a noise suppression structure includes an external sound insulation structure. An internal sound insulation structure is bolted to the bottom wall of the inner cavity of the external sound insulation structure. The chiller unit body is housed inside the external sound insulation structure. An air-cooled component is bolted to the upper end of the chiller unit body. The internal sound insulation structure includes a compressor and two fixed plates. Multiple rubber gaskets are located at the lower end of the compressor. The two fixed plates are connected to the internal sound insulation component at their adjacent ends. A unit pipe is fixedly connected to one side of the compressor. The outer surface of the unit pipe is wrapped with a pipe sound insulation component. The rubber gaskets are made of highly elastic, aging-resistant rubber, effectively buffering vibrations generated during compressor operation and preventing secondary noise transmission through the base, maintaining good vibration damping performance over a long period. The internal sound insulation component provides surround sound insulation for the compressor. The pipe sound insulation component specifically addresses vibration noise generated by fluid flow in the pipes.

[0010] Furthermore, the external sound insulation structure includes a steel frame, with solid wood panels fixedly connected to both the upper and lower walls of the inner cavity of the steel frame. Mounting grooves are provided at the upper end of the steel frame and the upper end of the upper solid wood panel. Multiple double-layered soundproof glass panes are fixedly connected inside the steel frame. A door frame is hinged to one side of the steel frame, and a handle is fixedly connected to one side of the door frame. Double-layered soundproof glass panes are fixedly connected inside the door frame. The steel frame provides stable support for the overall structure, and in conjunction with the solid wood panels, enhances the structure's sealing and sound insulation. The double-layered soundproof glass panes allow for internal lighting to facilitate observation of the unit's operating status while utilizing the air layer between the two panes to block noise transmission.

[0011] Furthermore, the internal sound insulation component includes a housing, with sound-absorbing cotton fixedly connected to the inner wall of the housing, a perforated sound-absorbing panel fixedly connected to the inner wall of the sound-absorbing cotton, and a silent axial flow fan fixedly connected to the inner wall of the perforated sound-absorbing panel. Air outlets are provided on one side of the housing, the sound-absorbing cotton, and the perforated sound-absorbing panel. An air outlet silencer is fixedly connected to one side of the housing, with the silencer positioned corresponding to the air outlet. Multiple pipe openings are provided on one side of the housing, the sound-absorbing cotton, and the perforated sound-absorbing panel. The sound-absorbing cotton can absorb the mid-to-high frequency noise generated by the compressor; the perforated sound-absorbing panel can further enhance the reflection and absorption of sound waves through its micropores, forming a composite sound-absorbing structure in conjunction with the sound-absorbing cotton, significantly improving the noise isolation capability of the compressor; the silent axial flow fan can ensure airflow around the compressor without generating excessive additional noise, avoiding poor heat dissipation due to the sound insulation structure; the air outlet silencer, positioned corresponding to the air outlet, can silence the airflow noise emitted by the compressor during heat dissipation, reducing noise generated by airflow disturbance.

[0012] Furthermore, the pipe sound insulation component includes centrifugal glass wool, which is wrapped around the outer surface of the unit pipe. The outer surface of the centrifugal glass wool is wrapped with damping sound insulation felt. The centrifugal glass wool wrapped around the outer surface of the unit pipe has good sound absorption and heat insulation properties and can absorb the noise generated by pipe vibration. The damping sound insulation felt can use its high damping characteristics to suppress pipe vibration and prevent noise from radiating outward through the pipe.

[0013] Furthermore, the air-cooling assembly includes a connecting plate with two air outlets at its upper end, and two silent fans are fixedly connected to the upper end of the connecting plate by bolts.

[0014] Furthermore, both the compressor and the rubber gasket are fixedly installed on the upper part of the solid wood board with bolts;

[0015] Furthermore, the outer shell is fixedly connected to one end of two fixing plates that are close to each other on both sides, and both fixing plates are fixedly installed on the upper end of the solid wood board by bolts;

[0016] Furthermore, the connecting plate is fixedly installed on the upper end of the chiller unit body by bolts. The connecting plate can be embedded in the inner wall of the mounting groove, and a sound insulation strip is provided at the connection between the outer surface of the connecting plate and the inner surface of the mounting groove.

[0017] Compared with the prior art, the advantages of this utility model are as follows:

[0018] (1) This solution uses an external sound insulation structure, with a steel frame and solid wood boards to form a basic sound insulation barrier, and double-layer soundproof glass to further block noise. This overall design completely encloses the chiller unit, which facilitates centralized noise reduction of the entire unit and powerful noise reduction from the outside of the chiller unit.

[0019] (2) This solution uses internal sound insulation components in conjunction with pipe sound insulation components, and uses sound-absorbing cotton and perforated sound-absorbing panels to form a composite structure to specifically absorb high-frequency noise in the compressor; centrifugal glass wool and damping sound insulation felt are used to suppress pipe vibration noise, which makes it easy to reduce noise from the inside of the chiller unit for components that are prone to generating noise. In conjunction with the external sound insulation structure, noise can be reduced from both the inside and outside of the unit at the same time, which greatly reduces the noise during the operation of the unit.

[0020] (3) This solution effectively reduces noise while taking into account the heat dissipation performance and operational stability of the unit. It provides a silent axial flow fan in the internal sound insulation component to work with the exhaust silencer, ensuring air circulation around the compressor while reducing additional noise. The silent fan of the air-cooled component and the sealing design of the connecting plate and the mounting groove reduce the noise of the air-cooling process and ensure heat dissipation efficiency. While ensuring noise reduction, it will not cause poor heat dissipation of the unit or unstable operation of the equipment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the external sound insulation structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the internal sound insulation structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the internal sound insulation component of this utility model;

[0026] Figure 5 This is a schematic diagram of the pipe sound insulation component of this utility model;

[0027] Figure 6 This is a schematic diagram of the air-cooled component of this utility model.

[0028] The labels in the diagram represent:

[0029] 1. External sound insulation structure; 101. Steel frame structure; 102. Solid wood board; 103. Mounting groove; 104. Double-layer soundproof glass; 105. Door frame; 106. Handle; 2. Internal sound insulation structure; 21. Compressor; 22. Rubber gasket; 23. Fixing plate; 24. Internal sound insulation components; 241. Outer shell; 242. Sound-absorbing cotton; 243. Perforated sound-absorbing panel; 244. Silent axial flow fan; 245. Pipe opening; 246. Air outlet silencer; 25. Unit piping; 26. Pipe sound insulation components; 261. Centrifugal glass wool; 262. Damping sound insulation felt; 3. Chiller unit body; 4. Air-cooled components; 41. Connecting plate; 42. Air outlet; 43. Silent fan. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] The present invention will be further described below with reference to the embodiments.

[0032] In some embodiments, please refer to the appendix to the instruction manual. Figures 1-6 A silent water chiller unit with a noise suppression structure includes an external sound insulation structure 1. An internal sound insulation structure 2 is bolted to the bottom wall of the inner cavity of the external sound insulation structure 1. A chiller unit body 3 is installed inside the external sound insulation structure 1. An air-cooled component 4 is bolted to the upper end of the chiller unit body 3. The internal sound insulation structure 2 includes a compressor 21 and two fixing plates 23. Both fixing plates 23 are bolted to the upper end of a solid wood board 102. Multiple rubber gaskets 22 are provided at the lower end of the compressor 21. The compressor 21 and the rubber gaskets 22 are bolted to the upper end of the solid wood board 102. An internal sound insulation component 24 is bolted to the end of the two fixing plates 23 that are close to each other. A unit pipe 25 is bolted to one side of the compressor 21. The outer surface of the unit pipe 25 is wrapped with a pipe sound insulation component 26.

[0033] In this embodiment of the utility model, the rubber gaskets 22 are made of high-elasticity, aging-resistant nitrile rubber with a hardness of 50±5 Shore A. The number of gaskets is evenly distributed according to the size of the compressor 21 base. When the compressor 21 vibrates during operation, it can effectively absorb vibration energy through its own elastic deformation, preventing the vibration from being directly transmitted through the solid wood board 102 to the steel structure frame 101 and causing overall resonance, thereby reducing the generation of secondary noise. Through the cooperation of the external sound insulation structure 1 and the internal sound insulation structure 2, the support plate can achieve coordinated internal and external noise reduction, which greatly reduces the overall noise of the unit during operation, while ensuring the heat dissipation performance and operational stability of the unit.

[0034] In some embodiments, such as Figure 1 - Figure 2 As shown, in a preferred embodiment of the present invention, the external sound insulation structure 1 includes a steel frame 101. Solid wood boards 102 are fixedly connected to the upper and lower walls of the inner cavity of the steel frame 101. Mounting grooves 103 are provided at the upper end of the steel frame 101 and the upper end of the solid wood board 102. Multiple double-layer soundproof glass 104 are fixedly connected inside the steel frame 101. A door frame 105 is hinged to one side of the steel frame 101. A handle 106 is fixedly connected to one side of the door frame 105. Double-layer soundproof glass 104 are fixedly connected inside the door frame 105.

[0035] In this embodiment of the utility model, the external sound insulation structure 1 forms a closed sound insulation space through the cooperation of the steel structure frame 101 and the solid wood board 102, completely covering the chiller unit body 3 and internal sound insulation structure 2 and other components, thus building the first line of noise reduction defense from the outside. When the unit generates noise during operation, the solid wood board 102 and the double-layer soundproof glass 104 work together to initially block and absorb the noise. The unblocked noise will be greatly attenuated when it is transmitted to the double-layer soundproof glass 104 due to the obstruction of the air layer between the glass, effectively reducing the diffusion of noise to the external environment.

[0036] In some embodiments, such as Figure 2 - Figure 6 As shown, in a preferred embodiment of this utility model, the internal sound insulation component 24 includes a housing 241. The two sides of the housing 241 are respectively fixedly connected to one end of two fixed plates 23 that are close to each other. Sound-absorbing cotton 242 is fixedly connected to the inner wall of the housing 241. A perforated sound-absorbing plate 243 is fixedly connected to the inner wall of the sound-absorbing cotton 242. A silent axial flow fan 244 is fixedly connected to the inner wall of the perforated sound-absorbing plate 243. An air outlet is opened on one side of the housing 241, the sound-absorbing cotton 242, and the perforated sound-absorbing plate 243. An air outlet silencer 246 is fixedly connected to one side of the housing 241. The position of the air outlet silencer 246 corresponds to the position of the air outlet. Multiple pipe openings 245 are opened on one side of the housing 241, the sound-absorbing cotton 242, and the perforated sound-absorbing plate 243.

[0037] The outer casing 241 can be made of 1.5mm thick galvanized steel plate, such as DX51D+Z, which provides structural strength, protects internal components, and assists in sound insulation. The sound-absorbing cotton 242 can be made of glass wool, such as the standard type specified in GB / T13350-2017, with a density of 32kg / m³ and a thickness of 50mm, which can efficiently absorb the medium and high frequency noise generated by the compressor 21. The perforated sound-absorbing panel 243 can be made of 3mm thick aluminum alloy plate, such as 5052-H32, with micro-holes of 3mm diameter and 8mm spacing, which work in conjunction with the sound-absorbing cotton 242 to enhance the sound absorption effect. The silent axial flow fan 244 can be made of SF type low-noise axial flow fan with an operating noise of ≤45dB(A) and a power of about 200W, which is used to ensure air circulation around the compressor 21 and avoid poor heat dissipation. The exhaust silencer 246 can be made of impedance composite silencer, such as XZW type, which is installed corresponding to the air outlet and can reduce the noise of the exhaust airflow, with a noise reduction of ≥20dB.

[0038] The pipe sound insulation component 26 includes centrifugal glass wool 261, which is wrapped around the outer surface of the unit pipe 25, and the outer surface of the centrifugal glass wool 261 is wrapped with damping sound insulation felt 262.

[0039] Centrifugal glass wool 261 can be selected as a roll material conforming to GB / T13350-2017, with a thickness of 40mm, which is wrapped around the outer surface of the unit pipe 25 to absorb pipe vibration noise and also has heat insulation properties; damping sound insulation felt 262 can be selected as a 2mm thick JL type, which is wrapped around the centrifugal glass wool 261 to suppress pipe vibration and prevent noise from radiating outward using its high damping characteristics.

[0040] The air-cooled assembly 4 includes a connecting plate 41, which is fixedly installed on the upper end of the chiller body 3 by bolts. The connecting plate 41 can be embedded in the inner wall of the mounting groove 103. A sound insulation strip is provided at the connection between the outer surface of the connecting plate 41 and the inner surface of the mounting groove 103. Two air outlets 42 are opened at the upper end of the connecting plate 41. Two silent fans 43 are fixedly connected to the upper end of the connecting plate 41 by bolts.

[0041] The connecting plate 41 can be made of stainless steel, such as 304 stainless steel, for installing the silent fan 43 and fitting it with the mounting slot 103 to enhance sealing. The silent fan 43 can be an FA type low-noise axial fan with a speed of 1450 r / min and an operating noise of ≤50dB(A). It blows air to the unit through the air outlet 42 to remove the heat generated during operation and ensure heat dissipation efficiency. The sound insulation strip can be a round strip made of EPDM rubber, used at the connection between the connecting plate 41 and the mounting slot 103 to prevent noise leakage.

[0042] In this embodiment of the utility model, the internal sound insulation component 24 can reduce noise in the chiller unit body 3. The outer shell 241, sound-absorbing cotton 242 and perforated sound-absorbing plate 243 form all-round surround sound insulation for the compressor 21. When the noise generated by the compressor 21 is transmitted outward, it is first reflected and initially absorbed by the perforated sound-absorbing plate 243, and then further absorbed by the sound-absorbing cotton 242, which greatly reduces the intensity of noise transmission.

[0043] Meanwhile, in order to ensure the heat dissipation of the compressor 21 while reducing noise, the silent axial flow fan 244 is kept running to exhaust the hot air around the compressor 21 through the air outlet and the air outlet silencer 246, so as to avoid the compressor 21 from overheating due to the sound insulation structure. The air outlet silencer 246 also reduces the noise generated by the exhaust airflow, ensuring that the heat dissipation process does not increase additional noise. The pipe sound insulation component 26 can be used to specifically insulate the unit pipes 25, reducing the transmission of pipe vibration noise.

[0044] When the silent fan 43 of the air-cooled component 4 is running, cold air enters the chiller unit body 3 through the air outlet 42, carrying away the heat generated during operation. The sealing design of the connecting plate 41 and the mounting groove 103 prevents noise from leaking from the gaps during the air-cooling process.

[0045] It should be noted that the chiller unit body 3 in this utility model includes essential components such as a condenser, an evaporator, and an oil separator.

[0046] It should be noted that the specific installation methods, circuit connection methods, and control methods of the chiller unit body 3, silent fan 43, compressor 21, air outlet silencer 246, and silent axial flow fan 244 in this utility model are all conventional designs, and this utility model will not elaborate on them in detail.

[0047] Working principle:

[0048] When the silent chiller unit is running, the internal sound insulation component 24 plays a role in targeting the compressor 21, the core noise source. The composite structure formed by the sound-absorbing cotton 242 and the perforated sound-absorbing panel 243 absorbs the mid-to-high frequency noise generated by the compressor 21. The perforated sound-absorbing panel 243 first reflects and initially absorbs the sound waves, and the sound-absorbing cotton 242 further absorbs them, significantly reducing the intensity of noise transmission. At the same time, the silent axial flow fan 244 runs continuously, exhausting the hot air around the compressor 21 through the air outlet, preventing the compressor 21 from having poor heat dissipation due to the sound insulation structure. The exhaust silencer 246 silences the noise generated by the exhaust airflow, ensuring that the heat dissipation process does not add additional noise.

[0049] The pipe sound insulation component 26 treats the unit pipe 25 with centrifugal glass wool 261 and damping sound insulation felt 262. Centrifugal glass wool 261 absorbs the noise generated by pipe vibration, and damping sound insulation felt 262 suppresses pipe vibration, prevents noise from radiating outward through the pipe, and reduces the propagation of pipe vibration noise.

[0050] After internal noise reduction, the overall noise is blocked again by the external sound insulation structure 1. The steel structure frame 101 and the solid wood board 102 work together to form a basic sound insulation barrier, which restricts the noise generated inside the unit to the enclosed space. The double-layer soundproof glass 104 further blocks the noise, so that the noise is greatly attenuated due to multiple obstacles in the process of being transmitted outward.

[0051] In addition, when the silent fan 43 of the air-cooled component 4 is running, cold air enters the chiller unit body 3 through the air outlet 42, carrying away the heat generated by the unit's operation and ensuring the unit's heat dissipation efficiency. Moreover, the silent fan 43 itself has low operating noise, and the sound insulation strip at the connection between the connecting plate 41 and the mounting groove 103 enhances the sealing performance, preventing noise from leaking from gaps during air cooling. Through the coordinated noise reduction of the internal and external components, the overall noise of the unit during operation is significantly reduced, while ensuring the unit's heat dissipation performance and operational stability.

[0052] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A quiet water chilling unit having a noise suppression structure, comprising an external sound insulation structure (1), characterized in that: The bottom wall of the inner cavity of the external sound insulation structure (1) is fixedly connected to the internal sound insulation structure (2) by bolts. The external sound insulation structure (1) is equipped with a chiller unit body (3). The upper end of the chiller unit body (3) is fixedly connected to the air-cooled component (4) by bolts. The internal sound insulation structure (2) includes a compressor (21) and two fixing plates (23). The lower end of the compressor (21) is equipped with multiple rubber gaskets (22). The two fixing plates (23) are fixedly connected to the internal sound insulation component (24) at their close ends. The compressor (21) is fixedly connected to a unit pipe (25) on one side. The outer surface of the unit pipe (25) is wrapped with a pipe sound insulation component (26).

2. The inverter-driven quiet water chiller with noise suppression structure according to claim 1, characterized in that: The external sound insulation structure (1) includes a steel frame (101), with solid wood boards (102) fixedly connected to the upper and lower walls of the inner cavity of the steel frame (101). The upper end of the steel frame (101) and the upper end of the solid wood board (102) are provided with mounting grooves (103). Multiple double-layer soundproof glass (104) are fixedly connected inside the steel frame (101). A door frame (105) is hinged to one side of the steel frame (101) by a hinge. A handle (106) is fixedly connected to one side of the door frame (105). Double-layer soundproof glass (104) is fixedly connected inside the door frame (105).

3. The inverter-driven quiet water chiller with noise suppression structure according to claim 2, characterized in that: The internal sound insulation component (24) includes a shell (241), a sound-absorbing cotton (242) is fixedly connected to the inner wall of the shell (241), a perforated sound-absorbing plate (243) is fixedly connected to the inner wall of the sound-absorbing cotton (242), a silent axial flow fan (244) is fixedly connected to the inner wall of the perforated sound-absorbing plate (243), an air outlet is provided on one side of the shell (241), the sound-absorbing cotton (242) and the perforated sound-absorbing plate (243), an air outlet silencer (246) is fixedly connected to one side of the shell (241), the position of the air outlet silencer (246) corresponds to the position of the air outlet, and multiple pipe openings (245) are provided on one side of the shell (241), the sound-absorbing cotton (242) and the perforated sound-absorbing plate (243).

4. The quiet type chiller with noise suppression structure according to claim 1, characterized in that: The pipe sound insulation component (26) includes centrifugal glass wool (261), which is wrapped around the outer surface of the unit pipe (25), and the outer surface of the centrifugal glass wool (261) is wrapped with damping sound insulation felt (262).

5. The quiet type chiller with noise suppression structure according to claim 2, characterized in that: The air-cooled assembly (4) includes a connecting plate (41), with two air outlets (42) on the upper end of the connecting plate (41), and two silent fans (43) are fixedly connected to the upper end of the connecting plate (41) by bolts.

6. The silent water chiller unit with noise suppression structure according to claim 2, characterized in that: The compressor (21) and the rubber gasket (22) are both fixedly installed on the upper end of the solid wood board (102) by bolts.

7. The quiet type chiller with noise suppression structure according to claim 3, characterized in that: The outer shell (241) is fixedly connected to the two fixed plates (23) on both sides at their respective ends, and the two fixed plates (23) are fixedly installed on the upper end of the solid wood board (102) by bolts.

8. The quiet type chiller with noise suppression structure according to claim 5, characterized in that: The connecting plate (41) is fixedly installed on the upper end of the water chiller body (3) through bolts, can be embedded into the inner wall of the installation groove (103), and the outer surface of the connecting plate (41) is provided with sound insulation strips at the connecting position with the inner surface of the installation groove (103).

Images