Noise reduction filter screen structure and refrigeration equipment

Abstract

The embodiment of the utility model provides a noise reduction filter screen structure and refrigeration equipment, the noise reduction filter screen structure comprises a filter screen frame and a noise reduction part, the filter screen frame is provided with a noise reduction part, the noise reduction part is arranged on the noise reduction part, a noise reduction cavity is defined by the noise reduction part and the noise reduction part, noise reduction holes are formed in the noise reduction part and the noise reduction part respectively, and the noise reduction part and the noise reduction part are arranged in the noise reduction cavity. And the noise reduction holes are communicated with the silencing cavity. According to the embodiment of the invention, the noise reduction performance of the refrigeration equipment provided with the noise reduction filter screen structure is improved, so that the noise is reduced, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, specifically to a noise reduction filter structure and a refrigeration device. Background Technology

[0002] As living standards improve, people have higher and higher requirements for indoor air quality, and more and more people are using fresh air conditioners. With the popularization of fresh air conditioners, their shortcomings have gradually been exposed. Among related technologies, fresh air conditioners have poor noise reduction performance, which results in a lot of noise when the air is ventilated, and the sound quality of the noise is poor, which seriously affects the user experience. Utility Model Content

[0003] This application provides a noise reduction filter structure and a refrigeration device, which aims to improve the noise reduction performance of the refrigeration device equipped with the noise reduction filter structure, thereby reducing the noise level and improving the user experience.

[0004] On one hand, this application provides a noise reduction filter structure, including: a filter frame and a noise reduction component. The filter frame is provided with a noise reduction part, and the noise reduction component is disposed on the noise reduction part and surrounds the noise reduction part to form a sound-absorbing cavity. The noise reduction part and the noise reduction component are respectively provided with noise reduction holes, and the noise reduction holes are connected to the sound-absorbing cavity.

[0005] In some embodiments, the noise reduction part is a noise reduction groove, and the noise reduction component includes a noise reduction plate, which is disposed on the upper side of the noise reduction groove to form a sound-absorbing cavity.

[0006] In some embodiments, the noise reduction component is a noise reduction cover, the noise reduction part is a noise reduction plate, the noise reduction cover has a noise reduction groove recessed on the side facing the noise reduction plate, and the noise reduction plate covers the noise reduction groove.

[0007] In some embodiments, one of the noise reduction plate and the noise reduction groove is provided with a buckle, and the other is provided with a card interface. The buckle is engaged with the card interface to fix the noise reduction plate to the noise reduction groove.

[0008] In some embodiments, one of the noise reduction plate and the noise reduction groove is provided with a limiting plug and the other is provided with a limiting groove. The limiting plug is inserted into the limiting groove to restrict the noise reduction plate from moving away from the noise reduction groove.

[0009] In some embodiments, noise reduction holes are disposed in the bottom wall of the noise reduction groove, and both the noise reduction plate and the bottom wall of the noise reduction groove are provided with a plurality of noise reduction holes.

[0010] In some embodiments, the filter frame is used to be installed inside the volute of the fresh air module, and the filter frame and the side wall of the volute form a volute air duct. The volute air duct has an air outlet, and a plurality of noise reduction holes on the noise reduction part are formed on the side wall of the filter frame for forming the air outlet.

[0011] In some embodiments, the aperture of the noise reduction hole is 2mm to 3mm.

[0012] In some embodiments, the spacing between any two adjacent noise reduction holes on the same surface is 3 mm to 5 mm.

[0013] In some embodiments, the porosity of the noise-reducing plate and the noise-reducing groove is 40% to 70%.

[0014] In some embodiments, the diameter of the noise reduction hole on the noise reduction plate is larger than the diameter of the noise reduction hole on the noise reduction groove.

[0015] In some embodiments, the diameter of the noise reduction hole on the noise reduction plate is smaller than the diameter of the noise reduction hole on the noise reduction groove.

[0016] In some embodiments, the diameter of the noise reduction hole on the noise reduction plate is equal to the diameter of the noise reduction hole on the noise reduction groove.

[0017] In some embodiments, the noise reduction filter structure further includes a flexible sound-absorbing element, which is filled in the silencing cavity, and the filter frame is also provided with an air inlet, which is adjacent to the silencing cavity.

[0018] On the other hand, embodiments of this application provide a refrigeration device, including the noise reduction filter structure as described above.

[0019] In some embodiments, the refrigeration equipment includes a fresh air module, the fresh air module includes an upper volute and a lower volute connected to each other, the noise reduction filter structure is installed between the upper volute and the lower volute, the lower volute and the filter frame enclose to form a volute air duct, and the noise reduction part is disposed on the side wall of the air outlet of the volute air duct.

[0020] In this embodiment, the filter frame is provided with a noise reduction part, and the noise reduction component is installed on the noise reduction part and together with the noise reduction part to form a sound-absorbing cavity. Both the noise reduction part and the noise reduction plate are provided with noise reduction holes for noise to pass through. When noise enters the sound-absorbing cavity through the noise reduction holes, the noise is scattered by the noise reduction holes, causing the sound waves of the noise to be reflected and scattered in various directions. The energy of the noise is dispersed in different directions, thereby achieving the purpose of noise reduction. This arrangement can improve the noise reduction performance of the noise reduction filter structure, thereby improving the noise reduction performance of the refrigeration equipment with this noise reduction filter structure and improving the user experience. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. 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 noise reduction filter structure provided in some embodiments of this application;

[0023] Figure 2 This is an exploded view of the noise reduction filter structure provided in some embodiments of this application;

[0024] Figure 3 yes Figure 2 Assembly diagram of the middle filter frame and noise reduction components;

[0025] Figure 4 This is a schematic diagram of the noise reduction filter structure provided in some other embodiments of this application;

[0026] Figure 5 This is a schematic diagram of the structure of the fresh air module in the refrigeration equipment provided in some embodiments of this application;

[0027] Figure 6 for Figure 5 Cross-sectional view of the fresh air module;

[0028] Figure 7 This is an exploded view of the fresh air module in the refrigeration equipment provided in some embodiments of this application;

[0029] Figure 8 This is an internal view of the fresh air module in a refrigeration device provided in some embodiments of this application.

[0030] Explanation of main component symbols: 1. Filter frame; 11. Noise reduction section; 12. Silencing chamber; 13. Limiting plug; 14. Flexible sound-absorbing component; 15. Air inlet; 16. Filter screen; 2. Noise reduction component; 21. Limiting groove; 22. Buckle; 3. Noise reduction hole; 4. Fresh air module; 41. Upper volute; 42. Lower volute; 43. Sound-absorbing cotton; 44. Silencing sheet; 45. Volute air duct; 46. Air outlet. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, 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 for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0034] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0035] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0036] Among them, the fresh air air conditioner includes a fresh air module. In related technologies, the fresh air module has a filter structure, which can play a certain role in noise reduction, but the effect is poor.

[0037] On the one hand, such as Figures 1 to 3As shown, this application embodiment provides a noise reduction filter structure, including a filter frame 1 and a noise reduction component 2. The filter frame 1 is provided with a noise reduction part 11, and the noise reduction component 2 is disposed on the noise reduction part 11 and surrounds the noise reduction part 11 to form a sound-absorbing cavity 12. The noise reduction part 11 and the noise reduction component 2 are respectively provided with noise reduction holes 3, and the noise reduction holes 3 and the sound-absorbing cavity 12 are connected.

[0038] In this embodiment, the filter frame 1 is provided with a noise reduction part 11, and the noise reduction component 2 is installed on the noise reduction part 11 and forms a sound-absorbing cavity 12 with the noise reduction part 11. Both the noise reduction part 11 and the noise reduction plate are provided with noise reduction holes 3 for noise to pass through. When noise enters the sound-absorbing cavity 12 through the noise reduction holes 3, the noise is scattered by the noise reduction holes 3, causing the sound waves of the noise to be reflected and scattered in various directions. The energy of the noise is dispersed in different directions, thereby achieving the purpose of reducing noise. This arrangement can improve the noise reduction performance of the noise reduction filter structure, thereby improving the noise reduction performance of the refrigeration equipment with the noise reduction filter structure and improving the user experience.

[0039] Furthermore, the noise reduction filter structure is installed inside the volute of the fresh air module 4 to reduce the noise generated by the fresh air module 4. The noise rubs against the walls of the noise reduction holes 3 and the air, causing the sound waves of the noise to be converted into heat energy and gradually dissipated. This frictional action consumes the energy of the noise.

[0040] In some embodiments, the noise reduction part 11 is a noise reduction groove, and the noise reduction component 2 includes a noise reduction plate, which is disposed on the upper side of the noise reduction groove to form a sound-absorbing cavity 12.

[0041] Specifically, the noise reduction plate is located above the noise reduction groove and covers it from top to bottom. Noise enters through the noise reduction hole 3 on the noise reduction plate and is scattered and reflected in the silencing cavity 12, thereby consuming a certain amount of sound energy. The sound is then output outward through the noise reduction hole 3 on the noise reduction groove. At this point, the noise has been weakened. This setting can reduce the noise transmitted outward, thereby improving the user experience.

[0042] In another embodiment, the noise reduction component 2 is a noise reduction cover, the noise reduction part 11 is a noise reduction plate, the noise reduction cover is recessed in the side facing the noise reduction plate, and the noise reduction plate covers the noise reduction groove.

[0043] Specifically, the noise reduction component 2 is a cover structure. The noise reduction cover is convex upward in an arc shape, and a noise reduction groove is formed inside the noise reduction cover. The opening of the noise reduction groove faces downward. The noise reduction part 11 is a plate structure. The noise reduction cover covers the noise reduction plate so that the noise reduction plate covers the noise reduction groove. The surface of the noise reduction cover is provided with noise reduction holes 3. Noise enters the silencing cavity 12 from the surface of the noise reduction cover and is then silencing. Subsequently, it is transmitted outward from the noise reduction holes 3 on the noise reduction plate.

[0044] In some embodiments, one of the noise reduction plate and the noise reduction groove is provided with a buckle 22 and the other is provided with a card interface. The buckle 22 is engaged with the card interface to fix the noise reduction plate to the noise reduction groove.

[0045] Specifically, in this embodiment, the noise reduction plate is provided with a snap-fit ​​22, which is an elastic snap-fit ​​22. A snap-fit ​​interface is provided on the noise reduction groove, allowing the noise reduction plate to be detachably installed in the noise reduction groove via a snap-fit ​​mechanism. This design facilitates the assembly and disassembly of the noise reduction plate, improves assembly efficiency, and facilitates disassembly for cleaning. In other embodiments, multiple bolts are passed through the noise reduction plate, and multiple threaded holes are provided in the noise reduction groove. The bolts are screwed into the threaded holes to fix the noise reduction plate.

[0046] In some embodiments, one of the noise reduction plate and the noise reduction groove is provided with a limiting plug 13 and the other is provided with a limiting groove 21. The limiting plug 13 is inserted into the limiting groove 21 to restrict the noise reduction plate from moving away from the noise reduction groove.

[0047] Specifically, in this embodiment, a limiting groove 21 is provided on the noise reduction plate. The limiting groove 21 is located on the opposite side of the buckle 22, and there are two limiting grooves 21. Two limiting plugs 13 are provided on the side wall of the noise reduction groove. The limiting plugs 13 are long strip-shaped plate structures. When installing the noise reduction plate, the limiting plugs 13 are first inserted into the limiting grooves 21, and then the noise reduction plate is lowered so that the buckle 22 is engaged in the buckle interface. This setting can increase the limiting effect of the noise reduction groove on the noise reduction plate and increase the installation stability of the noise reduction plate. In some other embodiments, a limiting step is provided on the noise reduction groove. The limiting step extends along the inner wall of the filter frame 1, and the noise reduction plate overlaps the limiting step.

[0048] In some embodiments, noise reduction holes 3 are disposed on the bottom wall of the noise reduction groove, and both the noise reduction plate and the bottom wall of the noise reduction groove are provided with multiple noise reduction holes 3.

[0049] Specifically, multiple noise reduction holes 3 are provided on the bottom wall of the noise reduction plate and the noise reduction groove. The noise reduction plate and the bottom wall of the groove are arranged opposite to each other, so that the noise reduction holes 3 on the upper and lower sides of the noise reduction cavity 12 are directly connected. In this arrangement, noise can enter through multiple noise reduction holes 3 for reflection and scattering, resulting in better noise reduction effect and further reducing noise. In some other embodiments, the noise reduction holes 3 in the noise reduction groove are provided on the side wall of the noise reduction groove.

[0050] In some embodiments, the filter frame 1 is installed inside the volute of the fresh air module 4. The filter frame 1 and the side wall of the volute form a volute air duct 45. The volute air duct 45 has an air outlet 46. A plurality of noise reduction holes 3 on the noise reduction part 11 are formed on the side wall of the filter frame 1 to form the air outlet 46.

[0051] Specifically, the bottom wall of the filter frame 1 and the side wall of the volute together form a volute air duct 45. The volute air duct 45 has an air outlet 46 and is divided into a near-outlet section close to the air outlet 46 and a far-outlet section away from the air outlet 46. Multiple noise reduction holes 3 on the bottom wall of the filter frame 1 are located in the near-outlet section, which accounts for two-thirds of the length of the volute air duct 45. At the far-outlet section, the bottom wall of the filter frame 1 is sealed. This arrangement effectively blocks the backflow of airflow, and the area with the noise reduction holes 3 provides air intake compensation. Compared to an embodiment where all the noise reduction holes 3 are open on the bottom wall of the filter frame 1, this arrangement achieves better noise reduction while maintaining a similar airflow volume, and also improves the overall aerodynamic performance of the fresh air module 4.

[0052] In some embodiments, the aperture of the noise reduction hole 3 is 2 mm to 3 mm.

[0053] Specifically, the cross-section of the noise reduction hole 3 can be triangular, polygonal, or circular. In this embodiment, the cross-section of the noise reduction hole 3 is circular, meaning the noise reduction hole 3 is a circular hole with a diameter of 2mm, 2.5mm, or 3mm. This arrangement allows multiple noise reduction holes 3 to combine and form a microporous structure, thus improving the noise reduction effect. In other embodiments, the aperture of the noise reduction hole 3 is greater than 3mm.

[0054] In some embodiments, the spacing between any two adjacent noise reduction holes 3 on the same surface is 3 mm to 5 mm.

[0055] Specifically, multiple noise reduction holes 3 are spaced apart from each other, with a hole spacing of 3mm, 4mm, or 5mm on the same surface. This arrangement allows the hole spacing to be adjusted according to the size of the filter frame 1, distributing as many noise reduction holes 3 as possible for sound attenuation, thus ensuring a better noise reduction effect. In some other embodiments, the spacing between any two adjacent noise reduction holes 3 on the same surface is greater than 5mm.

[0056] In some embodiments, the porosity of the noise-reducing plate and the noise-reducing groove is 40% to 70%.

[0057] Specifically, in order to ensure the structural strength of the noise reduction plate and the noise reduction groove, it is not suitable to set too many noise reduction holes 3. Therefore, the number of noise reduction holes 3 on the noise reduction plate and the noise reduction groove is limited. The porosity of the noise reduction plate and the noise reduction groove is 40%, 50%, 60% or 70%. This setting can adjust the number of noise reduction holes 3 to adjust the noise reduction effect while ensuring the structural strength. The production cost can also be controlled by controlling the number of noise reduction holes 3.

[0058] In some embodiments, the diameter of the noise reduction hole 3 on the noise reduction plate is larger than the diameter of the noise reduction hole 3 on the noise reduction groove; in another embodiment, the diameter of the noise reduction hole 3 on the noise reduction plate is smaller than the diameter of the noise reduction hole 3 on the noise reduction groove; in yet another embodiment, the diameter of the noise reduction hole 3 on the noise reduction plate is equal to the diameter of the noise reduction hole 3 on the noise reduction groove.

[0059] Specifically, in this embodiment, the aperture of the noise reduction hole 3 on the noise reduction plate is smaller than that of the noise reduction hole 3 on the noise reduction groove. The airflow drawn in by the fresh air module 4 first contacts the noise reduction plate. The smaller noise reduction hole 3 on the noise reduction plate can accelerate the entry of the airflow. The larger aperture of the noise reduction hole 3 in the noise reduction groove can convert the small flow of high-speed airflow into a large flow of low-speed airflow. The resulting airflow ejection effect obtains a large flow. With this setting, the fine turbulence generated after passing through the micropores will produce a sound similar to wind, resulting in purer aerodynamic noise, optimizing the sound quality of the noise, improving the user experience, and increasing the air intake volume, thereby improving the air intake and working efficiency of the fresh air module 4.

[0060] In some embodiments, the noise reduction filter structure further includes a flexible sound-absorbing element 14, which is filled in the silencing cavity 12. The filter frame 1 is also provided with an air inlet 15, which is adjacent to the silencing cavity 12.

[0061] Specifically, the flexible sound-absorbing component 14 is sound-absorbing cotton 43, which can absorb noise of specific frequencies. This arrangement can further reduce the noise level and remove specific noises that are difficult to hear. The filter frame 1 is also provided with an air inlet 15, which is an air inlet channel that connects to the inlet and outlet of the fresh air module 4. A filter 16 is also installed on the filter frame 1, which can cover the noise reduction part 11 and the air inlet 15 together.

[0062] On the other hand, such as Figures 4 to 6 As shown in the figure, this application provides a refrigeration device, including the noise reduction filter structure as described above.

[0063] In one embodiment, the refrigeration equipment includes a fresh air module 4, which includes an upper volute 41 and a lower volute 42 connected to each other. A noise reduction filter structure is installed between the upper volute 41 and the lower volute 42. The lower volute 42 and the filter frame 1 enclose each other to form a volute air duct 45. The noise reduction part is located on the side wall of the air outlet 46 of the volute air duct 45.

[0064] Specifically, the refrigeration equipment is a fresh air conditioner, which includes a fresh air module 4. A noise reduction filter structure is installed inside the fresh air module 4. The fresh air module includes an upper volute 41 and a lower volute 42. A filter frame 1 is installed between the upper volute 41 and the noise reduction filter structure. The bottom wall of the filter frame 1 and the bottom wall of the lower volute 42 enclose a volute air duct 45. Noise reduction holes 3 are located on the side wall of the volute air duct and are located near the air outlet 46 of the volute air duct 45. A sound-absorbing cotton 43 and a sound-absorbing sheet 44 are also provided between the filter frame 1 and the upper volute 41 for preliminary noise reduction treatment.

[0065] The noise reduction filter structure and cooling device provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A noise reduction filter structure, characterized in that, include: The filter frame and the noise reduction component are provided. The filter frame is provided with a noise reduction part, and the noise reduction component is disposed on the noise reduction part and together with the noise reduction part to form a sound-absorbing cavity. The noise reduction part and the noise reduction component are respectively provided with noise reduction holes, and the noise reduction holes are connected to the sound-absorbing cavity.

2. The noise reduction filter structure according to claim 1, characterized in that, The noise reduction part is a noise reduction groove, and the noise reduction component includes a noise reduction plate. The noise reduction plate is disposed on the upper side of the noise reduction groove to form a sound-absorbing cavity; or, the noise reduction component is a noise reduction cover, the noise reduction part is a noise reduction plate, and the noise reduction cover has a noise reduction groove recessed on the side facing the noise reduction plate, and the noise reduction plate is disposed on the noise reduction groove.

3. The noise reduction filter structure according to claim 2, characterized in that, One of the noise-reducing plate and the noise-reducing groove is provided with a buckle, and the other is provided with a locking interface. The buckle is engaged with the locking interface to fix the noise-reducing plate to the noise-reducing groove; and / or, one of the noise-reducing plate and the noise-reducing groove is provided with a limiting plug, and the other is provided with a limiting groove. The limiting plug is inserted into the limiting groove to restrict the noise-reducing plate from moving away from the noise-reducing groove.

4. The noise reduction filter structure according to claim 2, characterized in that, The noise reduction holes in the noise reduction groove are provided on the bottom wall of the noise reduction groove, and both the noise reduction plate and the bottom wall of the noise reduction groove are provided with a plurality of noise reduction holes.

5. The noise reduction filter structure according to claim 4, characterized in that, The filter frame is used to install inside the volute of the fresh air module. The filter frame and the side wall of the volute together form a volute air duct. The volute air duct has an air outlet. Multiple noise reduction holes on the noise reduction part are formed on the side wall of the filter frame that surrounds the air outlet.

6. The noise reduction filter structure according to claim 2, characterized in that, The aperture of the noise reduction hole is 2mm to 3mm; and / or the spacing between any two adjacent noise reduction holes on the same surface is 3mm to 5mm; and / or the porosity of the noise reduction plate and the noise reduction groove is 40% to 70%.

7. The noise reduction filter structure according to claim 2, characterized in that, The diameter of the noise reduction hole on the noise reduction plate is larger than the diameter of the noise reduction hole on the noise reduction groove; or, the diameter of the noise reduction hole on the noise reduction plate is smaller than the diameter of the noise reduction hole on the noise reduction groove; or, the diameter of the noise reduction hole on the noise reduction plate is equal to the diameter of the noise reduction hole on the noise reduction groove.

8. The noise reduction filter structure according to claim 1, characterized in that, The noise reduction filter structure also includes a flexible sound-absorbing component, which is filled in the silencing cavity. The filter frame is also provided with an air inlet, which is adjacent to the silencing cavity.

9. A refrigeration device, characterized in that, Includes the noise reduction filter structure as described in any one of claims 1 to 8.

10. The refrigeration equipment according to claim 9, characterized in that, The refrigeration equipment includes a fresh air module, which includes an upper volute and a lower volute connected to each other. The noise reduction filter structure is installed between the upper volute and the lower volute. The lower volute and the filter frame enclose each other to form a volute air duct. The noise reduction part is located on the side wall of the air outlet of the volute air duct.

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