Fan assembly and refrigeration apparatus

Abstract

The application discloses a fan assembly and a refrigeration equipment. The fan assembly comprises a fan blade, a motor, a containing frame and a shielding mechanism. The motor drives the fan blade to rotate. The containing frame surrounds the fan blade and is provided with a plurality of sound absorption holes to provide a noise reduction function. The shielding mechanism comprises a driving part and a shielding part, which can control the opening and closing of the sound absorption holes. During the operation of the fan, the sound absorption holes can be opened when needed to reduce noise, and the sound absorption holes can be closed in some specific cases to prevent dust and sundries from entering the sound absorption holes and to avoid affecting the noise reduction effect. The design ensures the stability of the noise reduction performance of the fan during long-term operation, balances the noise reduction efficiency and the dust prevention effect, and improves the service life of the fan assembly.

Description

Technical Field

[0001] This invention relates to a fan assembly, and more particularly to a refrigeration device having the fan assembly. Background Technology

[0002] Currently, the cooling fan inside the refrigerator compressor compartment is one of the main sources of noise, especially when the fan is running at high speed, generating significant aerodynamic noise. As noise control requirements for home appliances increase, noise reduction technology is becoming increasingly important in refrigerators and other appliances. Currently, some noise reduction technologies reduce noise as airflow passes through noise-reducing channels. However, after prolonged use, dust and debris may accumulate inside the noise-reducing channels, affecting the noise reduction effect and shortening the lifespan of the noise-reducing system. Therefore, the noise reduction effect of existing technologies deteriorates over long-term use. Summary of the Invention

[0003] To address the long-term noise reduction problem in compressor compartments in existing technologies, the present invention aims to provide a fan assembly capable of long-term stable noise reduction and a refrigeration device incorporating the fan assembly.

[0004] To achieve the above-mentioned objective, one embodiment of the present invention provides a fan assembly, comprising:

[0005] Fan blades drive the airflow;

[0006] The motor has an operating state and a stopped state. In the operating state, the motor drives the fan blades to rotate.

[0007] A receiving frame in which the fan blades rotate, the receiving frame including a plurality of sound-absorbing holes facing the fan blades;

[0008] A shielding mechanism includes a driving part and a shielding part, wherein the driving part drives the shielding part to close or open at least a portion of the sound-absorbing holes.

[0009] As a further improvement of the present invention, the fan blade drives the airflow to flow in a first direction, and the plurality of sound-absorbing holes are arranged toward the fan blade in a direction perpendicular to the first direction.

[0010] As a further improvement of the present invention, the plurality of sound-absorbing holes are arranged around the fan blade.

[0011] As a further improvement of the present invention, the receiving frame includes a sidewall facing the fan blade, the sidewall being cylindrical, and the plurality of sound-absorbing holes being disposed on the sidewall.

[0012] As a further improvement of the present invention, in the stopped state, the shielding part closes at least a portion of the sound-absorbing holes.

[0013] As a further improvement of the present invention, the operating state includes a first operating state and a second operating state, wherein in the first operating state, the rotational speed of the fan blade is less than the rotational speed in the second operating state;

[0014] In the second operating state, the area of ​​the sound-absorbing hole is larger than the area of ​​the hole in the first operating state.

[0015] As a further improvement of the present invention, the sound-absorbing hole includes a first sound-absorbing part and a second sound-absorbing part, and the shielding part includes a first shielding part and a second shielding part. The first shielding part is used to close or open the first sound-absorbing part, and the second shielding part is used to close or open the second sound-absorbing part.

[0016] In the stopped state, the first shielding part closes the first sound-absorbing part, and the second shielding part closes the second sound-absorbing part;

[0017] In the first operating state, the first shielding part closes the first sound-absorbing part, and the second shielding part opens the second sound-absorbing part;

[0018] In the second operating state, the first shielding part opens the first sound-absorbing part, and the second shielding part opens the second sound-absorbing part.

[0019] As a further improvement of the present invention, both the first sound-absorbing part and the second sound-absorbing part are provided in two sets. The first shielding part includes two sets of first shielding plates, and the second shielding part includes two sets of second shielding plates. The two sets of first shielding plates respectively cover one set of the first sound-absorbing part, and the two sets of second shielding plates respectively cover one set of the second sound-absorbing part. The two sets of first sound-absorbing parts are arranged diagonally, and the two sets of second sound-absorbing parts are arranged diagonally.

[0020] As a further improvement of the present invention, both the first shielding plate and the second shielding plate include a plurality of grids. When the grid holes on the grids are aligned with the sound-absorbing holes, the sound-absorbing holes are opened. When the solid grid parts between adjacent grid holes are aligned with the sound-absorbing holes, the sound-absorbing holes are closed.

[0021] As a further improvement of the present invention, the first shielding part includes a first connecting part connecting two sets of the first shielding plates, the second shielding part includes a second connecting part connecting two sets of the second shielding plates, and the driving part includes a first driving part and a second driving part, the first driving part being used to drive the first connecting part to rotate, and the second driving part being used to drive the second connecting part to rotate.

[0022] As a further improvement of the present invention, the first connecting part includes a first gear, the second connecting part includes a second gear, the centers of the first gear and the second gear are both coincident with the axis of the fan blade, the first driving part drives the first gear to rotate, and the second driving part drives the second gear to rotate.

[0023] To achieve one of the above-mentioned objectives, an embodiment of the present invention provides a refrigeration device, the refrigeration device including a compressor compartment, wherein the aforementioned fan assembly is disposed within the compressor compartment.

[0024] Compared with existing technologies, this invention has the following advantages: By providing selectively closed or open sound-absorbing holes around the fan blades of the fan assembly, the problem of unstable noise reduction effect after long-term use is solved. The sound-absorbing holes can be closed as needed, effectively preventing dust and debris from entering and avoiding negative impacts on the noise reduction effect. Simultaneously, when the fan requires noise reduction, the sound-absorbing holes can be reopened, providing a highly efficient noise suppression function. This ensures the fan's noise reduction effect while preventing dust and debris from entering, thus maintaining the noise reduction effect over the long term and ensuring that the fan maintains excellent noise reduction performance and stability during long-term operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the press chamber according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of a wind turbine assembly according to an embodiment of the present invention from one perspective;

[0027] Figure 3 This is a schematic diagram of the structure of a wind turbine assembly according to an embodiment of the present invention from another perspective;

[0028] Figure 4 This is a schematic diagram of the structure of a receiving frame according to an embodiment of the present invention;

[0029] Figure 5 This is a longitudinal sectional view of a wind turbine assembly according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the shielding mechanism according to an embodiment of the present invention;

[0031] Among them, 100 is the fan assembly; 10 is the fan blade; 20 is the motor; 30 is the housing frame; 31 is the side wall; 32 is the sound-absorbing hole; 321 is the first sound-absorbing part; 322 is the second sound-absorbing part; 40 is the shielding mechanism; 41 is the first shielding part; 411 is the first shielding plate; 412 is the first gear; 413 is the first connecting part; 42 is the second shielding part; 421 is the second shielding plate; 422 is the second gear; 423 is the second connecting part; 431 is the grid solid part; 432 is the grid hole; 441 is the first driving part; 442 is the second driving part; and 200 is the compressor chamber. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0033] It should be understood that terms such as “above,” “over,” “below,” and “under” used herein to indicate spatial relative position are for illustrative purposes to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms “spatial relative position” may be intended to include different orientations of the equipment in use or operation other than those shown in the figures.

[0034] One embodiment of the present invention provides a fan assembly capable of long-term stable noise reduction and a refrigeration device having the fan assembly.

[0035] The refrigeration equipment in this embodiment can be a refrigerator, freezer, upright refrigerator, wine cabinet, etc. The following embodiment will be described using a refrigerator as an example.

[0036] The compressor and fan assembly 100 are installed inside the compressor compartment 200 of the refrigerator, such as... Figure 1 As shown. The fan assembly 100 ensures airflow within the compressor chamber 200 while providing effective noise control, thus enhancing the user experience.

[0037] A fan assembly 100 in this embodiment, such as Figures 2-6 As shown, it includes fan blades 10, motor 20, housing frame 30, sound-absorbing holes 32, and shielding mechanism 40.

[0038] The main function of the fan blade 10 is to drive airflow. The fan blade 10 is driven to rotate by the motor 20, thereby generating airflow to achieve the effect of cooling or ventilation.

[0039] The motor 20 has an operating state and a stop state. In the operating state, the motor 20 drives the fan blade 10 to rotate and generate airflow; while in the stop state, the motor 20 stops rotating, the fan blade 10 stops rotating, and the airflow stops.

[0040] Figure 2 and 3 In this configuration, the fan blades 10 of the fan assembly 100 are mounted and rotate within the housing frame 30. The housing frame 30 is used to improve the stability and structural strength of the fan.

[0041] like Figure 4 and 5 As shown, the inner side of the housing frame 30 is provided with a plurality of sound-absorbing holes 32. These sound-absorbing holes 32 are arranged facing the fan blade 10 and are used to reduce noise by airflow passing through these sound-absorbing holes 32 when the fan is running.

[0042] The sound-absorbing holes 32 help reduce aerodynamic noise and improve the noise reduction effect of the fan.

[0043] The blocking mechanism 40 includes a drive unit and a blocking unit.

[0044] The drive unit is responsible for driving the movement of the shielding unit, while the shielding unit is responsible for selectively closing or opening the sound-absorbing holes 32.

[0045] During the operation of the fan assembly 100, the shielding mechanism 40 can adjust the open or closed state of the sound-absorbing holes 32 as needed.

[0046] For example, when the fan is in a stopped state, the shielding part will close at least part of the sound-absorbing hole 32 to prevent dust or debris from entering the sound-absorbing hole 32 and avoid affecting the noise reduction effect and the long-term operating performance of the fan.

[0047] When the fan needs noise reduction, the shielding part will open the sound-absorbing hole 32 to provide good noise suppression function and ensure that the fan can still effectively reduce noise during operation.

[0048] By flexibly adjusting the state of the sound-absorbing hole 32, the noise reduction effect is maximized, and the problem of dust and debris entering the sound-absorbing hole 32 is effectively solved.

[0049] When strong noise reduction is not required, the shielding part can partially close the sound-absorbing holes 32 to reduce the entry of dust; when strong noise reduction is required, the shielding part will open the sound-absorbing holes 32 to provide sufficient noise reduction effect.

[0050] This dynamic adjustment mechanism not only improves the noise control effect of the fan, but also extends the service life of the fan, ensuring that it maintains excellent noise reduction performance and stability during long-term use.

[0051] The fan assembly 100 avoids the problem of noise reduction effect degradation caused by dust accumulation in the prior art by setting sound-absorbing holes 32 around the fan blades 10 that can be selectively closed or opened, ensuring that the noise reduction effect of the fan is stable after long-term use and has strong dust resistance, thus providing a more reliable and durable noise reduction effect in practical applications.

[0052] In this embodiment, the fan blades 10 of the fan assembly 100 drive the airflow to flow in a first direction, while the sound-absorbing holes 32 are arranged toward the fan blades 10 in a direction perpendicular to the first direction.

[0053] To clearly express the positions and directions described in this embodiment, the first direction is defined as the left-right direction. Figure 1 The airflow passes over the compressor from left to right. Additionally, up and down are defined according to the direction of gravity.

[0054] In this embodiment, such as Figures 2-4 As shown, the sound-absorbing holes 32 are arranged perpendicular to the airflow direction and facing the fan blades 10. That is to say, the sound-absorbing holes 32 do not face the windward side, but are parallel to the direction of airflow. The sound-absorbing holes 32 configured in this way can more effectively reduce the noise in the airflow and optimize the noise reduction effect by utilizing the natural flow direction of the airflow.

[0055] Furthermore, such as Figure 2 , 4 As shown in Figure 5, multiple sound-absorbing holes 32 are arranged around the fan blade 10. The sound-absorbing holes 32 are not limited to being set only on one side of the fan, but are arranged around the fan blade 10 to form an all-round noise reduction area. This design allows noise from almost all directions to be effectively suppressed when the airflow passes through the fan through the sound-absorbing holes 32.

[0056] Due to the surrounding arrangement of the sound-absorbing holes 32, the fan can comprehensively reduce the noise generated by the airflow during operation. This surrounding design enables the fan to achieve a more balanced noise reduction effect from all angles, thereby improving the overall noise control capability of the fan.

[0057] Furthermore, such as Figures 2-5 As shown, the housing frame 30 includes a sidewall 31 facing the fan blade 10. The sidewall 31 is cylindrical, and a plurality of sound-absorbing holes 32 are disposed on the sidewall 31.

[0058] The sidewall 31 of the housing frame 30 is designed in a cylindrical shape. This shape design helps to improve the structural stability of the fan and ensures that the airflow generated by the fan during operation can be distributed more evenly.

[0059] The cylindrical sidewalls 31 allow these sound-absorbing holes 32 to be tightly wrapped around the fan, ensuring that the airflow minimizes noise as it passes through these sound-absorbing holes 32.

[0060] Furthermore, in the stopped state, the shielding part closes at least part of the sound-absorbing hole 32 to prevent dust or debris from entering the sound-absorbing hole 32.

[0061] In practical applications of the fan assembly 100, when the fan is stopped, the sound-absorbing hole 32 is not always open, but is closed by the shielding mechanism 40. The design of the shielding part can effectively block the entry of dust and external debris, ensuring that the inside of the sound-absorbing hole 32 is not contaminated during fan shutdown, such as not being blocked by dust.

[0062] Furthermore, the operating states include a first operating state and a second operating state. In the first operating state, the rotational speed of the fan blade 10 is less than the rotational speed in the second operating state. In the second operating state, the open area of ​​the sound-absorbing hole 32 is greater than the open area in the first operating state.

[0063] In the first operating state, the fan blade 10 rotates at a lower speed, while in the second operating state, the fan blade 10 rotates at a higher speed. The open area of ​​the sound-absorbing hole 32 also varies depending on the fan's rotational speed.

[0064] In the first operating state, the fan speed is low and the sound emitted is relatively low, so the noise reduction requirement is relatively low. Therefore, the shielding part will partially close the sound absorption holes 32, and only a portion of the sound absorption holes 32 will be open. The closed sound absorption holes 32 can be kept clean, and only the part of the sound absorption holes 32 that is open is sufficient to meet the noise reduction requirements.

[0065] In the second operating state, the fan speed is higher, and the noise reduction requirements are also higher. Therefore, the shielding part will open more sound-absorbing holes 32 to provide a stronger noise suppression effect. This design can flexibly adjust the opening area of ​​the sound-absorbing holes 32 according to the fan's operating state, maximizing the balance between the fan's noise reduction effect and efficiency, ensuring sufficient noise control at high speeds, while maintaining efficient operation at low speeds.

[0066] Furthermore, the sound-absorbing hole 32 includes a first sound-absorbing part 321 and a second sound-absorbing part 322, and the shielding part includes a first shielding part 41 and a second shielding part 42. The first shielding part 41 is used to close or open the first sound-absorbing part 321, and the second shielding part 42 is used to close or open the second sound-absorbing part 322.

[0067] The first sound-absorbing part 321 and the second sound-absorbing part 322 are located in different areas of the fan and each has an independent control function. The first shielding part 41 and the second shielding part 42 control the opening or closing state of the corresponding sound-absorbing part through the shielding mechanism, thereby realizing flexible adjustment of the sound-absorbing holes 32 in different areas.

[0068] When the machine is stopped, the first shielding part 41 closes the first sound-absorbing part 321, and the second shielding part 42 closes the second sound-absorbing part 322.

[0069] In the first operating state, the first shielding part 41 closes the first sound-absorbing part 321, and the second shielding part 42 opens the second sound-absorbing part 322.

[0070] In the second operating state, the first shielding part 41 opens the first sound-absorbing part 321, and the second shielding part 42 opens the second sound-absorbing part 322.

[0071] This design allows the sound-absorbing holes 32 in different areas to be adjusted independently according to the operating status, thereby precisely controlling the noise reduction effect according to different noise reduction requirements.

[0072] For example, by controlling the depth and cross-section of the sound-absorbing hole 32, the first sound-absorbing part 321 and the second sound-absorbing part 322 correspond to high-frequency noise reduction and low-frequency noise reduction, respectively. When the fan is running at low speed, low-frequency noise is dominant. At this time, the first shielding part 41 closes the first sound-absorbing part 321 and the second shielding part 42 opens the second sound-absorbing part 322. When the fan is running at high speed, high-frequency noise is dominant. At this time, the first shielding part 41 opens the first sound-absorbing part 321 and the second shielding part 42 opens the second sound-absorbing part 322.

[0073] This regional adjustment method can more effectively adapt to the noise control requirements under different operating conditions and optimize the noise reduction performance of the fan in different operating modes. By controlling the opening and closing of the first shielding part 41 and the second shielding part 42 respectively, more precise noise suppression and dust suppression effects can be achieved.

[0074] Furthermore, such as Figures 4-6 As shown, the first sound-absorbing part 321 and the second sound-absorbing part 322 are each provided in two sets. The first shielding part 41 includes two sets of first shielding plates 411, and the second shielding part 42 includes two sets of second shielding plates 421. The two sets of first shielding plates 411 respectively cover their corresponding first sound-absorbing part 321, and the two sets of second shielding plates 421 respectively cover their corresponding second sound-absorbing part 322. The two sets of first sound-absorbing parts 321 and second sound-absorbing parts 322 are arranged diagonally to achieve a more uniform noise reduction effect.

[0075] Specifically, in the fan assembly 100, the two sets of sound-absorbing holes 32 of the first sound-absorbing part 321 and the second sound-absorbing part 322 are arranged diagonally to ensure that the noise generated by the fan during operation is comprehensively suppressed. When the speed is low, although the first baffle plate 411 will block some of the sound-absorbing holes 32, the second sound-absorbing part 322 is arranged on both sides of the air passage at the other diagonal position, which can play a good noise reduction role.

[0076] This diagonal arrangement allows the fan to maintain a balanced noise reduction effect at any angle and speed, enhancing the uniformity and reliability of the noise reduction effect.

[0077] Furthermore, such as Figure 6 As shown, both the first baffle plate 411 and the second baffle plate 421 include multiple grids. When the grid holes 432 on the grid are aligned with the sound-absorbing holes 32, the sound-absorbing holes 32 are opened. When the grid solid parts 431 between adjacent grid holes 432 are aligned with the sound-absorbing holes 32, the sound-absorbing holes 32 are closed.

[0078] The baffle not only has the function of closing or opening the sound-absorbing holes 32, but also has the precise ability to control the opening and closing of the sound-absorbing holes 32 by aligning the grid holes 432.

[0079] Multiple grids are designed on the first baffle plate 411 and the second baffle plate 421. The spacing of these grids can be adjusted according to the fan speed and noise requirements. When the baffle plate rotates or moves, the sound-absorbing holes 32 will open when the grid holes 432 are aligned with the sound-absorbing holes 32, thereby increasing the noise reduction effect of the fan.

[0080] When the solid part of the grid aligns with the sound-absorbing hole 32, the sound-absorbing hole 32 is sealed to prevent dust from entering. This grid structure design further improves the control precision of the sound-absorbing hole 32, ensuring the reliability of noise reduction and dustproof effects.

[0081] The movement or rotation of the grid can simultaneously align multiple grid holes 432 with the sound-absorbing holes 32, or simultaneously close the sound-absorbing holes 32 with multiple grid solid parts 431.

[0082] The first shielding part 41 includes a first connecting part 413 connecting two sets of first shielding plates 411, the second shielding part 42 includes a second connecting part 423 connecting two sets of second shielding plates 421, and the driving part includes a first driving part 441 and a second driving part 442. The first driving part 441 is used to drive the first connecting part 413 to rotate, and the second driving part 442 is used to drive the second connecting part 423 to rotate.

[0083] The first connecting part 413 and the second connecting part 423 are connected to the baffle plate through a gear transmission system, which enables precise rotation control.

[0084] The connection structure between the first shielding part 41 and the second shielding part 42 enables each set of shields to open and close synchronously or independently. When it is necessary to adjust the open state of the sound-absorbing hole 32, the drive unit controls the rotation of the connecting part to drive the shield to rotate at a predetermined angle, precisely opening and closing the sound-absorbing hole 32. The design of the gears and connecting part ensures that the drive unit can effectively control the movement of the shielding part, providing a smooth and flexible adjustment function.

[0085] Furthermore, the first connecting part 413 includes a first gear 412, and the second connecting part 423 includes a second gear 422. The centers of both the first gear 412 and the second gear 422 coincide with the axis of the fan blade 10. The first driving part 441 drives the first gear 412 to rotate, and the second driving part 442 drives the second gear 422 to rotate. This design ensures precise control of the drive system, enabling synchronous or independent adjustment of the opening and closing states of the two sets of baffles.

[0086] The design of the first gear 412 and the second gear 422 aligns them with the axis of the fan blades 10, ensuring that the gear system can precisely control the angle of the baffle plate via the drive unit. Each gear system is connected to a drive unit, ensuring that the two baffle plates can operate independently or synchronously. This gear drive method provides efficient and precise control, ensuring that the baffle plate precisely matches the fan's operating requirements when opening and closing the sound-absorbing holes 32.

[0087] Compared with commonly used technologies, this embodiment has the following advantages:

[0088] By providing selectively openable or closed sound-absorbing holes 32 around the fan blades 10 of the fan assembly 100, the problem of unstable noise reduction effect after long-term use is solved. The sound-absorbing holes 32 can be closed as needed to effectively prevent dust and debris from entering, avoiding negative impacts on the noise reduction effect. Simultaneously, when noise reduction is required, the sound-absorbing holes 32 can be reopened, providing efficient noise suppression. This ensures the fan's noise reduction effect while preventing dust and debris from entering, thus maintaining the noise reduction effect over the long term and ensuring that the fan maintains excellent noise reduction performance and stability during long-term operation.

[0089] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. 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.

[0090] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A fan assembly, characterized in that, include: Fan blades drive the airflow; The motor has an operating state and a stopped state. In the operating state, the motor drives the fan blades to rotate. A receiving frame in which the fan blades rotate, the receiving frame including a plurality of sound-absorbing holes facing the fan blades; A shielding mechanism includes a driving part and a shielding part, wherein the driving part drives the shielding part to close or open at least a portion of the sound-absorbing holes.

2. The wind turbine assembly according to claim 1, characterized in that, The fan blades drive the airflow to flow in a first direction, and the plurality of sound-absorbing holes are arranged toward the fan blades in a direction perpendicular to the first direction.

3. The wind turbine assembly according to claim 2, characterized in that, The plurality of sound-absorbing holes are arranged around the fan blade.

4. The wind turbine assembly according to claim 3, characterized in that, The receiving frame includes a sidewall facing the fan blade, the sidewall being cylindrical, and the plurality of sound-absorbing holes being disposed on the sidewall.

5. The wind turbine assembly according to claim 1, characterized in that, In the stopped state, the shielding part closes at least part of the sound-absorbing holes.

6. The wind turbine assembly according to claim 5, characterized in that, The operating states include a first operating state and a second operating state. In the first operating state, the rotational speed of the fan blades is less than the rotational speed in the second operating state. In the second operating state, the area of ​​the sound-absorbing hole is larger than the area of ​​the hole in the first operating state.

7. The wind turbine assembly according to claim 6, characterized in that, The sound-absorbing hole includes a first sound-absorbing part and a second sound-absorbing part, and the shielding part includes a first shielding part and a second shielding part. The first shielding part is used to close or open the first sound-absorbing part, and the second shielding part is used to close or open the second sound-absorbing part. In the stopped state, the first shielding part closes the first sound-absorbing part, and the second shielding part closes the second sound-absorbing part; In the first operating state, the first shielding part closes the first sound-absorbing part, and the second shielding part opens the second sound-absorbing part; In the second operating state, the first shielding part opens the first sound-absorbing part, and the second shielding part opens the second sound-absorbing part.

8. The wind turbine assembly according to claim 7, characterized in that, Both the first sound-absorbing part and the second sound-absorbing part are provided in two sets. The first shielding part includes two sets of first shielding plates, and the second shielding part includes two sets of second shielding plates. The two sets of first shielding plates cover one set of the first sound-absorbing part, and the two sets of second shielding plates cover one set of the second sound-absorbing part. The two sets of first sound-absorbing parts are arranged diagonally, and the two sets of second sound-absorbing parts are arranged diagonally.

9. The wind turbine assembly according to claim 8, characterized in that, Both the first and second shielding plates include multiple grids. When the grid holes on the grids are aligned with the sound-absorbing holes, the sound-absorbing holes are opened. When the solid grid parts between adjacent grid holes are aligned with the sound-absorbing holes, the sound-absorbing holes are closed.

10. The wind turbine assembly according to claim 8, characterized in that, The first shielding part includes a first connecting part connecting two sets of the first shielding plates, the second shielding part includes a second connecting part connecting two sets of the second shielding plates, and the driving part includes a first driving part and a second driving part. The first driving part is used to drive the first connecting part to rotate, and the second driving part is used to drive the second connecting part to rotate.

11. The wind turbine assembly according to claim 10, characterized in that, The first connecting part includes a first gear, and the second connecting part includes a second gear. The centers of the first gear and the second gear are both coincident with the axis of the fan blade. The first driving part drives the first gear to rotate, and the second driving part drives the second gear to rotate.

12. A refrigeration device, characterized in that, The refrigeration equipment includes a compressor compartment, and a fan assembly as described in any one of claims 1 to 11 is disposed within the compressor compartment.

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