Noise reduction and sound insulation cover convenient to install

Abstract

The utility model relates to a noise reduction acoustic enclosure convenient to install, which comprises a base, the top of the base is fixedly connected with a first splice plate, the top of the base is fixedly connected with a second splice plate, the inside of the second splice plate is in threaded connection with a bolt, the inside of the first splice plate is fixedly connected with a dust screen, and the inside of the second splice plate is fixedly connected with the dust screen. The back face of the dustproof net is fixedly connected with a fixing support. According to the noise reduction and sound insulation cover convenient to install, the noise reduction structure is arranged and matched with the spiral design of the elastic diaphragm, so that the spiral folding structure of the elastic diaphragm can carry out noise reduction treatment after noise enters the noise reduction cabin, that is, the noise is dispersed through the through holes; and meanwhile, sound waves of different frequency bands are isolated and dispersed on a propagation path through the combination of the elastic diaphragms with different screw pitches, so that the overall noise reduction effect on the transformer can be improved, the transformer is prevented from being damaged due to collision, the transformer is protected, and meanwhile, the mounting and dismounting modes are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer sound insulation covers, in particular to a noise reduction sound insulation cover which is easy to install. Background Art

[0002] With the acceleration of my country's urbanization process, the number of substations is increasing and gradually approaching residential areas. The low-frequency noise generated by the substation during operation is not easy to attenuate and has a long transmission distance, which has seriously affected the physical and mental health of the surrounding residents. Therefore, it is imperative to control and manage its noise. The low-frequency noise generated by the transformer is mainly composed of the transformer body noise and the cooling device noise. The body noise is mainly caused by the magnetostrictive effect of the silicon steel sheet of the transformer core, and is mainly low-frequency noise at 100Hz and its integer multiples.

[0003] In the prior art, the sound insulation and noise reduction device is directly fixed in front of the converter transformer. The installation and removal processes are very slow and are all completed in front of the converter transformer. When the converter transformer is overhauled or replaced, the sound insulation and noise reduction device needs to be removed before the converter transformer can be removed. After the overhaul is completed, the sound insulation and noise reduction device needs to be installed again. The whole process is time-consuming and requires power outage, which is not conducive to the operation of the converter station. In addition, the prior art has the problem of slow attenuation rate of low-frequency noise generated by the transformer, making it difficult for the surrounding environmental noise level to reach the limit of 45-50dB. For this reason, we propose a noise reduction and sound insulation cover that is easy to install. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a noise reduction and sound insulation cover that is easy to install, has the advantages of good noise reduction effect, convenient installation and disassembly, and solves the problems of inconvenient installation and disassembly and slow noise reduction rate.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a noise reduction and sound insulation cover that is easy to install, comprising a base, a first splicing plate fixedly connected to the top of the base, a second splicing plate fixedly connected to the top of the base, a bolt connected to the inner thread of the second splicing plate, a dust net fixedly connected to the inside of the first splicing plate, a fixed bracket fixedly connected to the back of the dust net, a noise reduction structure fixedly connected to the inside of the fixed bracket, a sound-absorbing cotton fixedly connected to the back of the sound-absorbing cotton, a sound-absorbing board fixedly connected to the opposite end of the sound-absorbing board, and a radiator fixedly connected to the top of the second splicing plate movably connected to a sliding door;

[0006] The noise reduction structure includes a separation pane, the separation pane is fixedly connected to the interior of the fixing bracket, the separation pane is fixedly connected to the interior of the noise reduction cabin, a perforation is opened on the left side of the noise reduction cabin, and an elastic diaphragm is fixedly arranged inside the noise reduction cabin.

[0007] Furthermore, a sound absorbing groove is provided on the top of the base, a support frame is fixedly connected to the top of the base, a reinforcing rib is fixedly connected to the top of the support frame, a rubber pad is fixedly connected to the top of the reinforcing rib, and a sound insulation felt is fixedly connected to the top of the rubber pad.

[0008] Furthermore, the first splicing plate and the second splicing plate are both provided with soundproof square holes, and the inside of the soundproof square holes is fixedly connected with a dustproof net, a fixing bracket, sound-absorbing cotton, and a sound-absorbing board, and the inside of the sound-absorbing board is provided with a plurality of sound-absorbing holes distributed in an equidistant array.

[0009] Furthermore, a plurality of tightly arrayed separation window panes are fixedly connected inside the fixing bracket, and the elastic diaphragm is spiral-shaped as a whole, and the head and tail ends are fixedly connected to the inner wall of the noise reduction cabin.

[0010] Furthermore, connecting frames are fixedly connected to the four inner corners of the separation window pane, and the opposite ends of the connecting frames are fixedly connected to noise reduction cabins, and the noise reduction cabins are connected to the separation window panes through the connecting frames.

[0011] Furthermore, the radiator is connected to the second splicing plate through the sound absorbing plate, bolts are threadedly connected to both sides of the first splicing plate, and the first splicing plate is connected to the second splicing plate through the bolts.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. The noise reduction and sound insulation cover which is easy to install is provided with a noise reduction structure and cooperates with the spiral design of the elastic diaphragm, so that the spiral folding structure of the elastic diaphragm can perform noise reduction after the noise enters the noise reduction cabin, that is, the noise is dispersed by perforation, and at the same time, the sound waves of different frequency bands are isolated and dispersed on the propagation path through the combination of elastic diaphragms with different pitches, thereby improving the overall noise reduction effect on the transformer noise.

[0014] 2. The noise reduction and sound insulation cover which is easy to install can select the size of the first splicing plate and the second splicing plate according to the size of the transformer by setting the first splicing plate, the sound insulation felt and the sound absorbing groove, so as to reduce the shaking of the transformer. The sound insulation felt and the rubber pad are fixedly set on the top of the base, so as to reduce the vibration noise caused by the contact between the transformer and the first splicing plate and the second splicing plate, avoid the damage of the transformer due to collision, thereby protecting the transformer, and also making the installation and disassembly method more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall three-dimensional exploded view of the utility model;

[0016] Figure 2This is a three-dimensional detail diagram of the dustproof net of the utility model;

[0017] Figure 3 This is a three-dimensional diagram of the noise reduction structure of the utility model;

[0018] Figure 4 This is a three-dimensional cross-sectional view of the noise reduction structure of the utility model.

[0019] In the figure: 1. base; 2. sound-absorbing groove; 3. support frame; 4. reinforcing ribs; 5. rubber pad; 6. sound insulation felt; 7. first splicing plate; 8. second splicing plate; 9. bolts; 10. dustproof net; 11. fixing bracket; 12. noise reduction structure; 1201. separation window pane; 1202. noise reduction cabin; 1203. perforation; 1204. elastic diaphragm; 13. sound-absorbing cotton; 14. sound-absorbing board; 15. radiator; 16. sliding door. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 In this embodiment, a noise reduction and sound insulation cover that is easy to install includes a base 1, a first splicing plate 7 is fixedly connected to the top of the base 1, a second splicing plate 8 is fixedly connected to the top of the base 1, a bolt 9 is threadedly connected to the inner part of the second splicing plate 8, a dustproof net 10 is fixedly connected to the inner part of the first splicing plate 7, a fixed bracket 11 is fixedly connected to the back of the dustproof net 10, a noise reduction structure 12 is fixedly connected to the inner part of the fixed bracket 11, a sound-absorbing cotton 13 is fixedly connected to the back of the sound-absorbing cotton 13, a sound-absorbing board 14 is fixedly connected to the back of the sound-absorbing board 14, a radiator 15 is fixedly connected to the opposite end of the sound-absorbing board 14, and a sliding door 16 is movably connected to the top of the second splicing plate 8;

[0022] The noise reduction structure 12 includes a separation pane 1201, the separation pane 1201 is fixedly connected to the interior of the fixed bracket 11, the separation pane 1201 is fixedly connected to the interior of the noise reduction cabin 1202, a perforation 1203 is opened on the left side of the noise reduction cabin 1202, and an elastic diaphragm 1204 is fixedly arranged inside the noise reduction cabin 1202.

[0023] In specific implementation, the radiator 15 is composed of a heat sink and a heat pipe, wherein the heat pipe is made of metal material with good thermal conductivity. When the transformer generates heat during operation, the cooling medium flows through the heat pipe of the radiator 15, and then the heat inside the transformer is transferred to the surface of the heat pipe, and finally the heat is dissipated into the air by the heat sink on the surface.

[0024] A slide groove is fixedly opened on the top of the first splicing plate 7, and a slider is fixedly connected to the bottom of the sliding door 16, and the size of the slider is adapted to the opening size of the slide groove. The slider is movably connected inside the slide groove, and the sliding door 16 is connected to the first splicing plate 7 through the slider and the slide groove.

[0025] When implementing, follow these steps:

[0026] 1) First, install by splicing, and fix the base 1 to the bottom of the transformer. The installer can select the size of the first splicing plate 7 and the second splicing plate 8 according to the size of the transformer, and screw the bolts 9 (the overlapped position of the threaded holes of the first splicing plate 7 and the second splicing plate 8) into the first splicing plate 7 and the second splicing plate 8, and then connect the first splicing plate 7 and the second splicing plate 8 to the base 1;

[0027] 2) Then the heat is dissipated. When the transformer is running, heat is generated. The cooling medium flows through the heat pipe of the radiator 15, and then the heat inside the transformer is transferred to the surface of the heat pipe. Finally, the heat is dissipated into the air by the heat sink on the surface.

[0028] 3) Noise reduction and sound insulation treatment. When the transformer body generates noise or the radiator 15 generates cooling noise, the noise penetrates the inside of the sound-absorbing cotton 13 through the sound-absorbing holes inside the sound-absorbing board 14. At this time, the low-frequency noise at 100 Hz and its integer multiples completes the preliminary noise reduction and dispersion treatment, while the untreated cooling broadband noise enters the separation window pane 1201 in the fixed bracket 11. At the same time, the broadband noise is dispersed through the perforation 1203, and the sound waves of different frequency bands are isolated and dispersed on the propagation path through the combination of elastic diaphragms 1204 with different pitches, thereby improving the overall noise reduction effect of the transformer;

[0029] 4) Finally, for maintenance and disassembly, if the transformer needs to be repaired, the sliding door 16 can be pushed outward to check whether there is any problem with the transformer. When disassembly work is required, the bolt 9 is turned out in the opposite direction of the thread, and the first splicing plate 7 and the second splicing plate 8 are removed at the same time.

[0030] In summary, the noise reduction and sound insulation cover which is easy to install is provided with a noise reduction structure 12, and cooperates with the spiral design of the elastic diaphragm 1204, so that the spiral folding structure of the elastic diaphragm 1204 can perform noise reduction after the noise enters the noise reduction cabin 1202, that is, the perforation 1203 disperses the noise, and at the same time, the sound waves of different frequency bands are isolated and dispersed on the propagation path through the combination of elastic diaphragms 1204 with different pitches, thereby improving the overall noise reduction effect on the transformer noise.

[0031] Furthermore, by providing the first splicing plate 7, the sound insulation felt 6, and the sound absorbing groove 2, the sizes of the first splicing plate 7 and the second splicing plate 8 can be selected according to the size of the transformer, thereby reducing the shaking of the transformer. By fixing the sound insulation felt 6 and the rubber pad 5 on the top of the base 1, the vibration noise caused by the contact between the transformer and the first splicing plate 7 and the second splicing plate 8 can be reduced, and the transformer can be prevented from being damaged due to collision, thereby protecting the transformer and making the installation and disassembly method more convenient.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise reduction and sound insulation enclosure that is easy to install, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a first splicing plate (7), the top of the base (1) is fixedly connected to a second splicing plate (8), the second splicing plate (8) is internally threadedly connected to a bolt (9), the first splicing plate (7) is internally fixedly connected to a dust screen (10), the back of the dust screen (10) is fixedly connected to a fixed bracket (11), the interior of the fixed bracket (11) is fixedly connected to a noise reduction structure (12), the back of the fixed bracket (11) is fixedly connected to a sound-absorbing cotton (13), the back of the sound-absorbing cotton (13) is fixedly connected to a sound-absorbing board (14), the opposite end of the sound-absorbing board (14) is fixedly connected to a radiator (15), and the top of the second splicing plate (8) is movably connected to a sliding door (16); The noise reduction structure (12) comprises a separation pane (1201), the separation pane (1201) is fixedly connected inside the fixing bracket (11), the separation pane (1201) is fixedly connected inside the noise reduction cabin (1202), a perforation (1203) is provided on the left side of the noise reduction cabin (1202), and an elastic diaphragm (1204) is fixedly arranged inside the noise reduction cabin (1202).

2. The noise reduction and sound insulation cover that is easy to install according to claim 1, characterized in that: A sound absorbing groove (2) is provided on the top of the base (1), a support frame (3) is fixedly connected to the top of the base (1), a reinforcing rib (4) is fixedly connected to the top of the support frame (3), a rubber pad (5) is fixedly connected to the top of the reinforcing rib (4), and a sound insulation felt (6) is fixedly connected to the top of the rubber pad (5).

3. The noise reduction and sound insulation cover that is easy to install according to claim 1 is characterized by: The first splicing plate (7) and the second splicing plate (8) are both provided with sound-insulating square holes, and the inside of the sound-insulating square holes is fixedly connected with a dustproof net (10), a fixing bracket (11), sound-absorbing cotton (13), and a sound-absorbing plate (14), and the inside of the sound-absorbing plate (14) is provided with a plurality of sound-absorbing holes distributed in an equidistant array.

4. The noise reduction and sound insulation cover that is easy to install according to claim 1 is characterized by: A plurality of closely arrayed separation panes (1201) are fixedly connected inside the fixing bracket (11); the elastic diaphragm (1204) is spiral-shaped as a whole, and its head and tail ends are fixedly connected to the inner wall of the noise reduction cabin (1202).

5. The noise reduction and sound insulation cover that is easy to install according to claim 1, characterized in that: Connecting frames are fixedly connected to the four inner corners of the separation window pane (1201), and the opposite ends of the connecting frames are fixedly connected to the noise reduction cabin (1202), and the noise reduction cabin (1202) is connected to the separation window pane (1201) via the connecting frames.

6. The noise reduction and sound insulation cover that is easy to install according to claim 1, characterized in that: The radiator (15) is connected to the second splicing plate (8) via a sound absorbing plate (14); bolts (9) are threadedly connected to both sides of the first splicing plate (7); and the first splicing plate (7) is connected to the second splicing plate (8) via the bolts (9).

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