CN218065222U - Low-frequency noise reduction device for fresh air system - Google Patents
Low-frequency noise reduction device for fresh air system Download PDFInfo
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- CN218065222U CN218065222U CN202220824238.6U CN202220824238U CN218065222U CN 218065222 U CN218065222 U CN 218065222U CN 202220824238 U CN202220824238 U CN 202220824238U CN 218065222 U CN218065222 U CN 218065222U
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Abstract
The utility model relates to a new trend technical field specifically is a low-frequency noise reducing device to new trend system, which comprises an outer shell, the inboard fixedly connected with shock pad of shell. The utility model has the advantages of: seven sound insulation cavities are formed between the outer shell and the inner shell through the arrangement of the first sound insulation frame, the second sound insulation frame and the third sound insulation frame, as is well known, the more the layers are, the better the sound insulation and noise reduction effects are, the first sound insulation frame, the second sound insulation frame and the third sound insulation frame are arranged around the center of the inner shell, and the four side surfaces are all arranged, so that the comprehensive noise reduction can be performed on the fan, and the transmission effect of low-frequency noise is reduced; the baffle sets up in the slope, and every two from top to bottom the baffle is a set of, and when the low frequency noise transmitted the inboard of first sound-proof frame, second sound-proof frame and the inboard of third sound-proof frame, can reflect and attenuate at the inboard of baffle to further fall the noise of low frequency, further protected the user.
Description
Technical Field
The utility model relates to a new trend technical field of system, especially a low frequency noise reducing device to new trend system.
Background
The fresh air system is a set of independent air processing system consisting of an air supply system and an air exhaust system and is divided into a pipeline type fresh air system and a pipeline-free fresh air system. The pipeline type fresh air system consists of a fresh air fan and pipeline accessories, outdoor air is purified by the fresh air fan and is led into a room, and indoor air is discharged through a pipeline; the ductless fresh air system is composed of a fresh air fan, and the fresh air fan is used for purifying outdoor air and guiding the outdoor air into a room. Relatively speaking, the pipeline type fresh air system is more suitable for being used in industrial or large-area office areas due to large engineering quantity, and the pipeline-free fresh air system is more suitable for being used in families due to convenient installation. In 1935, after many attempts, the first heat exchange device capable of filtering air pollution in the world, also called a fresh air system, was invented and manufactured. The new fan of new trend system often can produce low frequency noise, produces great harm to the human body. All noises can cause harm to human bodies, long-wave noises, namely low-frequency noises have stronger direct influence on physiology than short-wave noises, and long-wave noises can further cause long-term influence on human health to generate sequelae. However, the harm caused by such long-wave noise has not been paid sufficient attention. Therefore, a device for reducing the low-frequency noise of the fresh air system is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a low frequency noise reducing device to new trend system.
The purpose of the utility model is realized through the following technical scheme: a low-frequency noise reduction device for a fresh air system comprises an outer shell, wherein a shock pad is fixedly connected to the inner side of the outer shell, an installation piece is fixedly connected to the other side of the shock pad, and the bottom of the installation piece is fixedly connected with an inner shell through the shock pad;
the inner side of the mounting piece is fixedly connected with a first sound insulation frame, the inner side of the first sound insulation frame is fixedly connected with a fixing column, the inner side of the first sound insulation frame is fixedly connected with a second sound insulation frame through the fixing column, and the inner side of the second sound insulation frame is fixedly connected with a third sound insulation frame through the fixing column;
the inner side of the first sound insulation frame, the inner side and the outer side of the second sound insulation frame and the inner side and the outer side of the third sound insulation frame are fixedly connected with baffles.
Optionally, the shock pad is made of rubber, and the vertical section of the mounting piece is U-shaped.
Optionally, the installed part is made of aluminum alloy, and the inner shell is welded outside the fresh air system fan.
Optionally, the first sound insulation frame is made of foamed aluminum, and the length and the height of the first sound insulation frame are both greater than those of the second sound insulation frame.
Optionally, the second sound-insulating frame is located completely inside the first sound-insulating frame, and the length and height of the second sound-insulating frame are both greater than those of the third sound-insulating frame.
Optionally, seven sound insulation cavities are formed between the outer shell and the inner shell through the arrangement of the first sound insulation frame, the second sound insulation frame and the third sound insulation frame, the number of layers is increased, the sound insulation and noise reduction effect is better, the first sound insulation frame, the second sound insulation frame and the third sound insulation frame are arranged around the center of the inner shell, four sides are arranged, the fan can be subjected to comprehensive noise reduction, and the transmission effect of low-frequency noise is reduced.
Optionally, the baffles are arranged in an inclined manner, and every two baffles are arranged in a group, so that when low-frequency noise is transmitted to the inner sides of the first sound-insulating frame, the second sound-insulating frame and the third sound-insulating frame, the low-frequency noise can be reflected and attenuated on the inner sides of the baffles, and thus the low-frequency noise is further reduced, and a user is further protected.
The utility model has the advantages of it is following:
1. this low frequency noise reduction device to new trend system, this device is the shell of installing additional in the fan outside of new trend system, utilize shock pad and installed part structure to subdue the vibrations that the fan transmission of new trend system comes, reduce the production of noise, furthermore, at the inboard fixedly connected with first sound insulating frame of installed part, the inboard fixedly connected with fixed column of first sound insulating frame, the inboard of first sound insulating frame has second sound insulating frame through fixed column fixedly connected with, the inboard of second sound insulating frame has third sound insulating frame through fixed column fixedly connected with, the setting through first sound insulating frame, second sound insulating frame and third sound insulating frame between shell and the inner shell has constituted seven syllable-dividing cavitys altogether, it is well known, the more the number of piles, the sound insulation is fallen the better the noise reduction effect, and first sound insulating frame, second sound insulating frame and third sound insulating frame enclose around the center setting of inner shell, and four sides all set up, can fall the fan and fall the noise comprehensively, reduce the transmission effect of low frequency noise.
2. This low frequency noise reducing device to new trend system, the inboard of first sound proof frame, second sound proof frame and the inboard of the outside, third sound proof frame and the equal fixedly connected with baffle in the outside, baffle slope set up, and per upper and lower two the baffle is a set of, when low frequency noise transmitted the inboard of first sound proof frame, second sound proof frame and the inboard of third sound proof frame, can be at the inboard reflection and the decay of baffle to further fall making an uproar low frequency noise, further protected the user.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a front view of the present invention;
fig. 3 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.
In the figure: 1-outer shell, 2-shock pad, 3-mounting piece, 4-inner shell, 5-first sound insulation frame, 6-fixing column, 7-second sound insulation frame, 8-third sound insulation frame and 9-baffle.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.
As shown in fig. 1-3, a low-frequency noise reduction device for a fresh air system comprises an outer shell 1, a shock pad 2 is fixedly connected to the inner side of the outer shell 1, a mounting member 3 is fixedly connected to the other side of the shock pad 2, and the bottom of the mounting member 3 is fixedly connected to an inner shell 4 through the shock pad 2;
a first sound insulation frame 5 is fixedly connected to the inner side of the mounting piece 3, a fixing column 6 is fixedly connected to the inner side of the first sound insulation frame 5, a second sound insulation frame 7 is fixedly connected to the inner side of the first sound insulation frame 5 through the fixing column 6, and a third sound insulation frame 8 is fixedly connected to the inner side of the second sound insulation frame 7 through the fixing column 6;
the inner side of the first sound-insulating frame 5, the inner side and the outer side of the second sound-insulating frame 7 and the inner side and the outer side of the third sound-insulating frame 8 are fixedly connected with baffle plates 9.
As an optimal technical solution of the utility model: the damping pad 2 is made of rubber, the vertical section of the mounting piece 3 is U-shaped, the mounting piece 3 is made of aluminum alloy, the inner shell 4 is welded outside the fan of the fresh air system, the first sound insulation frame 5 is specifically made of foamed fiber aluminum, the length and the height of the first sound insulation frame 5 are both greater than those of the second sound insulation frame 7, the second sound insulation frame 7 is completely positioned inside the first sound insulation frame 5, the length and the height of the second sound insulation frame 7 are both greater than those of the third sound insulation frame 8, seven sound insulation cavities are formed between the outer shell 1 and the inner shell 4 through the arrangement of the first sound insulation frame 5, the second sound insulation frame 7 and the third sound insulation frame 8, the more layers are, the better sound insulation and noise reduction effects are good, the first sound insulation frame 5, the second sound insulation frame 7 and the third sound insulation frame 8 surround the center of the inner shell 4, and four side surfaces are arranged, so that the overall noise reduction can be carried out on the fan, and the transmission effect of low-frequency noise is reduced;
the baffles 9 are obliquely arranged, every two baffles 9 form a group, and when low-frequency noise is transmitted to the inner sides of the first sound-insulating frame 5, the second sound-insulating frame 7 and the third sound-insulating frame 8, the low-frequency noise can be reflected and attenuated on the inner sides of the baffles 9, so that the noise of the low-frequency noise is further reduced, and a user is further protected.
The working process of the utility model is as follows:
s1, arranging a shell outside a fan of a fresh air system;
s2, the shock absorption pad 2 and the mounting part 3 reduce the vibration transmitted by a fan of the fresh air system, so that the noise is reduced;
s3, seven sound insulation cavities are formed between the outer shell 1 and the inner shell 4 through the arrangement of the first sound insulation frame 5, the second sound insulation frame 7 and the third sound insulation frame 8, and low-frequency noise is further attenuated;
s4, baffles 9 are fixedly connected to the inner side of the first sound insulation frame 5, the inner side and the outer side of the second sound insulation frame 7 and the inner side and the outer side of the third sound insulation frame 8, the baffles 9 are obliquely arranged, and when low-frequency noise is transmitted to the inner sides of the first sound insulation frame 5 and the second sound insulation frame 7 and the inner side of the third sound insulation frame 8, the low-frequency noise can be reflected and attenuated on the inner sides of the baffles 9, so that the low-frequency noise is further reduced.
In summary, when the low-frequency noise reduction device for the fresh air system is used, the device is an outer shell additionally arranged outside a fan of the fresh air system, the vibration transmitted by the fan of the fresh air system is reduced by utilizing the structures of the shock absorption pad 2 and the mounting piece 3, and the noise is reduced, further, a first sound insulation frame 5 is fixedly connected to the inner side of the mounting piece 3, a fixing column 6 is fixedly connected to the inner side of the first sound insulation frame 5, a second sound insulation frame 7 is fixedly connected to the inner side of the first sound insulation frame 5 through the fixing column 6, a third sound insulation frame 8 is fixedly connected to the inner side of the second sound insulation frame 7 through the fixing column 6, seven sound insulation cavities are formed between the outer shell 1 and the inner shell 4 through the arrangement of the first sound insulation frame 5, the second sound insulation frame 7 and the third sound insulation frame 8, as is well known, the more the sound insulation frames are arranged, the better the sound insulation effect is obtained, the number of layers is the first sound insulation frame 5, the second sound insulation frame 7 and the third sound insulation frame 8, the inner shell 4 is arranged on the four side surfaces, and the noise reduction effect is better, the noise is reduced; inboard of first sound proof frame 5, the inboard and the outside of second sound proof frame 7, the inboard and the equal fixedly connected with baffle 9 in outside of third sound proof frame 8, baffle 9 slope sets up, and per upper and lower two baffle 9 is a set of, when low frequency noise transmitted the inboard of first sound proof frame 5, second sound proof frame 7 and the inboard of third sound proof frame 8, can be at the inboard reflection and the decay of baffle 9 to further fall making an uproar low frequency noise, further protected the user.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a low frequency noise reducing device to new trend system which characterized in that: the damping device comprises an outer shell (1), wherein a damping pad (2) is fixedly connected to the inner side of the outer shell (1), an installation part (3) is fixedly connected to the other side of the damping pad (2), and the bottom of the installation part (3) is fixedly connected with an inner shell (4) through the damping pad (2);
a first sound insulation frame (5) is fixedly connected to the inner side of the mounting piece (3), a fixing column (6) is fixedly connected to the inner side of the first sound insulation frame (5), a second sound insulation frame (7) is fixedly connected to the inner side of the first sound insulation frame (5) through the fixing column (6), and a third sound insulation frame (8) is fixedly connected to the inner side of the second sound insulation frame (7) through the fixing column (6);
the inner side of the first sound insulation frame (5), the inner side and the outer side of the second sound insulation frame (7) and the inner side and the outer side of the third sound insulation frame (8) are fixedly connected with baffles (9).
2. A low frequency noise reduction device for a fresh air system according to claim 1, wherein: the shock pad (2) is made of rubber, and the vertical section of the mounting piece (3) is U-shaped.
3. A low frequency noise reduction device for a fresh air system according to claim 1, wherein: the mounting piece (3) is made of aluminum alloy, and the inner shell (4) is welded outside the fan of the fresh air system.
4. A low frequency noise reduction device for a fresh air system according to claim 1, wherein: the first sound insulation frame (5) is made of foamed fiber aluminum, and the length and the height of the first sound insulation frame (5) are both larger than those of the second sound insulation frame (7).
5. A low frequency noise reduction device for a fresh air system according to claim 1, wherein: the second sound insulation frame (7) is completely positioned inside the first sound insulation frame (5), and the length and the height of the second sound insulation frame (7) are both larger than those of the third sound insulation frame (8).
6. A low frequency noise reduction device for a fresh air system according to claim 1, wherein: seven sound insulation cavities are formed between the outer shell (1) and the inner shell (4) through the arrangement of the first sound insulation frame (5), the second sound insulation frame (7) and the third sound insulation frame (8).
7. A low frequency noise reduction device for a fresh air system according to claim 1, wherein: the baffles (9) are obliquely arranged, and every two baffles (9) are arranged up and down and form a group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220824238.6U CN218065222U (en) | 2022-04-11 | 2022-04-11 | Low-frequency noise reduction device for fresh air system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220824238.6U CN218065222U (en) | 2022-04-11 | 2022-04-11 | Low-frequency noise reduction device for fresh air system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218065222U true CN218065222U (en) | 2022-12-16 |
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ID=84417631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220824238.6U Active CN218065222U (en) | 2022-04-11 | 2022-04-11 | Low-frequency noise reduction device for fresh air system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218065222U (en) |
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2022
- 2022-04-11 CN CN202220824238.6U patent/CN218065222U/en active Active
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