Silencing device for fresh air handling unit and fresh air handling unit equipment

Abstract

The utility model provides a noise reduction device for a fresh air handling unit and fresh air handling unit equipment, the noise reduction device for the fresh air handling unit comprises a noise reduction cover, the noise reduction cover comprises a bottom wall and a side wall which surrounds the edge of the bottom wall and extends in a protruding mode, and the bottom wall and the side wall jointly form a containing cavity used for covering the fresh air handling unit; an opening used for abutting against a floor is formed in the end, away from the bottom wall, of the side wall, a connecting hole communicating the inside and the outside is formed in the side wall, the silencing cover of the silencing device for the fresh air handling unit can cover the fresh air handling unit and is used for reducing noise and improving user experience, meanwhile, the communicating hole is formed in the side wall of the silencing cover, and therefore the silencing cover can be used for silencing the fresh air handling unit. And communication between the ventilation pipe of the fresh air handling unit and the outside is not hindered.

Description

TECHNICAL FIELD

[0001] The utility model belongs to building air conditioning technical field, concretely relates to a kind of sound attenuation device and fresh air handling unit equipment for fresh air handling unit. BACKGROUND

[0002] In addition to meeting the requirements of temperature, humidity and cleanliness of indoor personnel in the separate household type temperature and humidity independent air conditioning system, noise index is also one of the important indicators to measure whether the system is successful. Therefore, in the conventional separate household type technology system, the fresh air handling unit is generally arranged in the indoor kitchen or bathroom suspended ceiling space. However, since the separate household type fresh air handling unit often has a built-in deep dehumidification compressor, noise will increase when the compressor starts.

[0003] Therefore, a sound attenuation device and fresh air handling unit equipment for fresh air handling unit are needed to reduce noise. SUMMARY

[0004] In view of part or all of the above technical problems in the prior art, the utility model provides a sound attenuation device and fresh air handling unit equipment for fresh air handling unit. The sound attenuation device for fresh air handling unit can be covered on the outside of the fresh air handling unit to reduce noise and improve user experience.

[0005] According to one aspect of the utility model, a sound attenuation device for fresh air handling unit is provided, which includes a sound attenuation cover containing a bottom wall and a side wall extending outwardly around the edge of the bottom wall. The bottom wall and the side wall together form a receiving cavity for covering the fresh air handling unit. One end of the side wall away from the bottom wall is formed with an opening for abutting to the floor. A connecting hole is provided on the side wall for internal and external communication.

[0006] In one embodiment, the bottom wall and the side wall each contain at least two layers of sound absorption panels connected internally and externally.

[0007] In one embodiment, an air sandwich layer is provided between adjacent sound absorption panels.

[0008] In one embodiment, the sound absorption panel is a calcium carbonate sound absorption panel.

[0009] In one embodiment, an operation and maintenance opening is provided on the bottom wall, and a blocking plate for blocking the operation and maintenance opening is detachably arranged at the operation and maintenance opening.

[0010] In one embodiment, the operation and maintenance opening is two, and the two operation and maintenance openings are distributed in a spaced manner.

[0011] In one embodiment, the area of one operation and maintenance opening is twice the area of the other operation and maintenance opening.

[0012] In one embodiment, a rubber shock pad is further arranged at the opening.

[0013] In one embodiment, a plurality of lifting lugs are arranged on the side wall.

[0014] According to another aspect of the present application, a fresh air handling unit device is provided, comprising:

[0015] a fresh air handling unit,

[0016] the above-mentioned sound attenuation device for the fresh air handling unit,

[0017] The fresh air handling unit is hoisted on the floor through the rubber shock pad of the sound attenuation device for the fresh air handling unit, the sound attenuation cover is arranged on the fresh air handling unit, and the ventilation pipe of the fresh air handling unit passes through the connecting hole.

[0018] Compared with the prior art, the sound attenuation device for the fresh air handling unit has a sound attenuation cover arranged on the outside of the fresh air handling unit to reduce noise and improve the experience, and the connecting hole arranged on the side wall of the sound attenuation cover does not hinder the communication between the ventilation pipe of the fresh air handling unit and the outside. BRIEF DESCRIPTION OF DRAWINGS

[0019] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings, in which:

[0020] Figure 1 a cross-sectional view of a fresh air handling unit device according to one embodiment of the present application is shown;

[0021] Figure 2 a bottom view of a fresh air handling unit device according to one embodiment of the present application is shown.

[0022] In the drawings, the same components are designated by the same reference numerals. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0023] In order to make the technical solutions and advantages of the present application clearer, the exemplary embodiments of the present application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. And in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0024] The embodiments of the present application propose a sound attenuation device for a fresh air handling unit. As shown in Figure 1 and 2As shown, the soundproof device 100 for the fresh air handling unit comprises a soundproof cover 1. The soundproof cover 1 comprises a bottom wall 11 and a side wall 12. The side wall 12 is arranged around the edge of the bottom wall 11 and extends outwardly. The bottom wall 11 and the side wall 12 jointly form a containing cavity 13 for containing the fresh air handling unit 200, i.e. the soundproof cover 1 can be arranged outside the fresh air handling unit 200. An opening 14 is formed at the end of the side wall 12 away from the bottom wall 11, which is used for the fresh air handling unit 200 to enter the containing cavity 13. After connection, the opening 14 is used for abutting to the floor. A connecting hole 15 is arranged on the side wall 12 for the ventilation pipe 201 of the fresh air handling unit 200 to pass through.

[0025] In use, the opening 14 of the soundproof cover 1 is abutted to the floor, so that the soundproof cover 1 is arranged outside the fresh air handling unit 200 to absorb sound, thereby reducing noise and improving experience. It is easy to understand that the connecting hole 15 is used for the ventilation pipe 201 of the fresh air handling unit 200 to pass through to connect to the outside world. It can be seen that the soundproof device for the fresh air handling unit of the present application can effectively reduce the noise generated by the fresh air handling unit 200 from being transmitted to the outside.

[0026] In an embodiment, the bottom wall 11 and the side wall 12 each comprise at least two layers of sound-absorbing panels 16 which are connected to each other. The sound-absorbing panels 16 can absorb sound. By arranging multiple layers of sound-absorbing panels 16, the sound-absorbing capacity can be effectively improved. In addition, an air interlayer 17 is arranged between adjacent sound-absorbing panels 16. In the present application, an embodiment of two layers of sound-absorbing panels 16 is given. Of course, according to actual needs, the sound-absorbing panels 16 can also be constructed as more layers. It is easy to understand that by arranging the air interlayer 17, the sound-absorbing effect can be increased to reduce noise propagation.

[0027] In addition, the sound-absorbing panels 16 can be calcium carbonate sound-absorbing panels. This setting is convenient and easy to implement. Of course, the sound-absorbing panels 16 are not limited to this material, but can also be made of other materials, such as polyester fiber sound-absorbing panels, etc.

[0028] An operation and maintenance opening 18 is arranged on the bottom wall 11. A blocking plate 19 for blocking the operation and maintenance opening 18 is detachably arranged at the operation and maintenance opening 18. Of course, the blocking plate 19 can also be hingedly connected to the operation and maintenance opening 18 to be rotatably opened or closed. That is, the blocking plate 19 can be detachably arranged on the bottom wall 11 by means of, for example, bolts, etc., or can be pivotally connected to the bottom wall 11 by means of hinges, etc.

[0029] In order to facilitate processing and reduce production costs, the operation and maintenance opening 18 is square in shape. Of course, the shape of the blocking plate 19 matches the shape of the operation and maintenance opening 18.

[0030] It is easy to understand that the material of the blocking plate 19 can be the same as that of the side wall 12 and the bottom wall 11. The operation access hole 18 is two, and the two operation access holes 18 are spaced apart. By setting the operation access hole 18, the maintenance operation can be conveniently set. For example, the area of one operation access hole 18 is twice the area of the other operation access hole 18. That is, one operation access hole 18 can be opened larger, and the other operation access hole 18 can be opened smaller. This setting can facilitate the operation personnel to operate with both hands, and also can be observed through the operation access hole 18 with a large area.

[0031] The sound insulation device 100 for the fresh air unit 200 further comprises a rubber shock pad 2 arranged at the opening 14 in a split type. In order to improve the shock absorption effect, the rubber shock pad 2 can be provided in multiple layers, for example, two layers. That is, the fresh air unit 200 is arranged on the floor through the rubber shock pad 2. Through the rubber shock pad 2, the rigid vibration propagation of the fresh air unit 200 can be effectively reduced, and the purpose of shock absorption and noise reduction of the fresh air unit 200 is achieved. For example, the rubber shock pad 2 can be fixed to the floor by bolts.

[0032] In order to simplify the processing and reduce the manufacturing cost, the sound insulation cover 1 is a square body. Among them, the bottom wall 11 is a square plate. The side wall 12 is a square cylindrical structure. A veneer (not shown in the figure) can be arranged on the outside of the bottom wall 11. The veneer can make the sound insulation device 100 for the fresh air unit 200 and the surrounding environment keep color and pattern coordination, and the visual sense keeps consistency, which meets the aesthetic requirements.

[0033] A plurality of lifting lugs 3 are arranged on the side wall 12. For example, the lifting lug 3 is four, two of which are arranged on one wall of the side wall 12, and the other two are arranged on the other wall of the side wall 12 corresponding to the above-mentioned wall, so as to evenly hang the sound insulation cover 1. Specifically, the lifting lug 3 is configured as a bent piece. One side of the bent piece is fixed to the side wall 12, and the other side of the bent piece protrudes out of the side wall 12 and extends, and a lifting hole 31 is arranged on the other side of the bent piece. The lifting hole 31 is used for lifting bolts to pass through. In the installation process, the lifting bolts pass through the lifting hole 31 to hang the sound insulation cover 1 on the floor, thereby fixing the sound insulation cover 1.

[0034] The application also relates to a fresh air handling unit device. The fresh air handling unit device comprises a fresh air handling unit 200 and the sound attenuation device 100 for the fresh air handling unit described above. The fresh air handling unit 200 is hung on the floor through the rubber shock pad 2 of the sound attenuation device 100 for the fresh air handling unit, that is, at least one layer of rubber shock pad 2 is arranged between the fresh air handling unit 200 and the floor. The sound cover 1 is arranged on the fresh air handling unit 200 and fixed to the floor, that is, after the sound cover 1 is installed, the fresh air handling unit 200 is arranged in the accommodating cavity 13. The ventilation pipe 201 of the fresh air handling unit 200 passes through the connecting hole 15 to communicate with the outside. It can be seen that, in the application, on the one hand, the vibration generated by the fresh air handling unit 200 can be reduced to be transmitted to the outside through the rubber shock pad 2, and the noise is reduced; on the other hand, the noise generated by the fresh air handling unit 200 can be reduced to be transmitted to the outside through the sound cover 1. The sound attenuation device 100 for the fresh air handling unit can effectively reduce the noise and improve the user experience.

[0035] Although the preferred embodiments of the present application have been described, those skilled in the art who know the basic inventive concept can make further changes and modifications to the embodiments once they are aware of the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and / or modifications falling within the scope of the present application, and the changes and / or modifications made to the embodiments according to the present application should be covered within the protection scope of the present application.

Claims

1. A sound attenuation device for a fresh air unit, comprising: The silencer cover comprises a bottom wall and a side wall which is arranged around the edge of the bottom wall and extends outwardly, the bottom wall and the side wall jointly form a containing cavity for covering a fresh air handling unit, the end of the side wall away from the bottom wall is provided with an opening for abutting to a floor, and a connecting hole which is connected between the inside and outside is arranged on the side wall.

2. The sound attenuation device for a fresh air handling unit of claim 1, wherein, The bottom wall and the side wall both comprise at least two layers of sound absorption panels which are sleeved with each other.

3. The sound attenuation device for a fresh air handling unit of claim 2, wherein, An air interlayer is arranged between adjacent sound absorption panels.

4. The sound attenuation device for a fresh air unit according to claim 2 or 3, characterized in that The sound absorption panel is a calcium carbonate sound absorption panel.

5. The sound attenuation device for a fresh air unit of any one of claims 1 to 3, wherein An operation and maintenance opening is arranged on the bottom wall, and a blocking plate for blocking the operation and maintenance opening is detachably arranged at the operation and maintenance opening.

6. The sound attenuation device for a fresh air handling unit of claim 5, wherein, The operation and maintenance opening is two, and the two operation and maintenance openings are distributed in a spaced manner.

7. The sound attenuation device for a fresh air handling unit of claim 6, wherein, The area of one operation and maintenance opening is twice the area of the other operation and maintenance opening.

8. The sound attenuation device for a fresh air unit of any one of claims 1-3, wherein, A rubber shock-absorbing pad which is arranged at the opening in a split manner is further included.

9. The sound attenuation device for a fresh air unit of any one of claims 1-3, wherein, A plurality of lifting lugs are arranged on the side wall.

10. A fresh air handling unit apparatus, characterized by, It comprises: a fresh air handling unit, a silencer device for the fresh air handling unit according to any one of claims 1 to 9, wherein the fresh air handling unit is hoisted on a floor through the rubber shock-absorbing pad of the silencer device for the fresh air handling unit, the silencer cover is covered on the fresh air handling unit, and the ventilation pipe of the fresh air handling unit passes through the connecting hole.

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