CN219226045U

CN219226045U - Transformer noise reduction device

Info

Publication number: CN219226045U
Application number: CN202320153853.3U
Authority: CN
Inventors: 徐胜
Original assignee: Anhui Jiutian Transformer Co ltd
Current assignee: Anhui Jiutian Transformer Co ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-06-20
Anticipated expiration: 2033-02-08

Abstract

The utility model discloses a transformer noise reduction device, which comprises a box body, a vibration reduction mechanism and a sound insulation mechanism, wherein the vibration reduction mechanism and the sound insulation mechanism are respectively arranged in the box body, the vibration reduction mechanism comprises a bearing plate, a positioning plate, vibration reduction springs, a first elastic pad and a second elastic pad, the bearing plate is arranged in the box body in a lifting manner, a transformer is arranged on the bearing plate, the positioning plate is arranged in the box body, the positioning plate is arranged above the bearing plate, the vibration reduction springs are arranged in the box body, the vibration reduction springs are provided with a plurality of, the two ends of the vibration reduction springs respectively act on the bottom surface of the bearing plate and the bottom of the box body, the first elastic pads are arranged in the box body and are in butt joint with the bottom ends of the vibration reduction springs, the first elastic pads are provided with a plurality of the first elastic pads and the vibration reduction springs in one-to-one correspondence, the second elastic pads are arranged at the bottom of the positioning plate, and the second elastic pads are in butt joint with the top surface of the bearing plate.

Description

Transformer noise reduction device

Technical Field

The utility model relates to the technical field of transformers, in particular to a transformer noise reduction device.

Background

The transformer is a static electric equipment for converting alternating voltage and current to transmit alternating current electric energy, and realizes electric energy transmission according to the principle of electromagnetic induction, and the transformer can be divided into a power transformer, a test transformer, a transformer for instruments and a transformer with special purposes according to the application of the transformer, and the traditional transformer can generate noise in the operation process and cause noise pollution to the surrounding.

In the related art, when a noise reduction process is performed on a transformer, a soundproof plate is generally added to the inside of a transformer tank, so that noise is reduced from a propagation path. However, the transformer itself may vibrate during operation, and the vibration of the transformer may be transferred to the case, so that the case may also vibrate, and the vibration of the case may propagate in the air in a noise manner. The transformer and the box body can also be impacted due to vibration, noise can be generated due to the impact, so that the transformer can cause noise pollution to the surrounding environment in the working process, and the noise reduction effect is poor due to the fact that the noise reduction treatment is carried out on the transformer only by means of the sound insulation plate.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, an object of the present utility model is to provide a transformer noise reduction device, which can absorb part of vibration generated in the working process of a transformer, and improve the noise reduction effect on the transformer.

In order to achieve the above object, a first aspect of the present utility model provides a transformer noise reduction device, which comprises a box body, a vibration reduction mechanism and a sound insulation mechanism, wherein the vibration reduction mechanism and the sound insulation mechanism are respectively arranged in the box body, the vibration reduction mechanism comprises a bearing plate, a positioning plate, a vibration reduction spring, a first elastic pad and a second elastic pad, the bearing plate is arranged in the box body in a liftable manner, and the transformer is arranged on the bearing plate; the positioning plate is arranged in the box body and is positioned above the bearing plate; the damping springs are arranged in the box body, a plurality of damping springs are arranged, and two ends of each damping spring respectively act on the bottom surface of the bearing plate and the bottom of the box body; the first elastic pads are arranged in the box body and are abutted to the bottom ends of the damping springs, a plurality of first elastic pads are arranged, and the first elastic pads correspond to the damping springs one by one; the second elastic pad is arranged at the bottom of the positioning plate and is abutted to the top surface of the bearing plate.

According to the transformer noise reduction device, when the transformer vibrates in the working process, the vibration generated by the transformer is transmitted to the bearing plate, the bearing plate can slightly shake in the box body, the damping springs can absorb part of vibration, meanwhile, when the bearing plate and the damping springs transmit vibration, the first elastic pads and the second elastic pads are made of elastic materials, and when the damping springs and the bearing plate move due to the vibration transmission, impact sound is not easy to generate between the first elastic pads and the second elastic pads, and part of vibration is absorbed by the first elastic pads and the second elastic pads, so that noise generated in the box body can be reduced. After the vibration of the transformer is absorbed by the vibration reduction mechanism, the vibration amplitude of the box body can be reduced, so that the noise generated by the box body due to vibration can be reduced. Meanwhile, the sound insulation mechanism has a sound insulation effect, noise is weakened from the propagation path, and the noise reduction effect on the transformer is further improved.

In addition, the transformer noise reduction device proposed according to the application above may further have the following additional technical features:

specifically, the sound insulation mechanism comprises a sound insulation plate and a sound absorption cotton plate, wherein the sound insulation plate is arranged on the inner wall of the box body; the sound absorbing cotton plate is arranged on one side, away from the inner wall of the box body, of the sound insulating plate.

Specifically, a vacuum sound insulation cavity is formed inside the sound insulation plate.

Specifically, the bottom surface of the bearing plate is provided with a plurality of guide posts, the bottom of the box body is provided with a plurality of guide holes, the guide posts penetrate through the guide holes, the damping springs are sleeved on the guide posts, and the guide posts are respectively in one-to-one correspondence with the damping springs and the guide holes.

Specifically, the vibration reduction mechanism further comprises an elastic supporting pad, the elastic supporting pad is arranged in the box body, and the elastic supporting pad is abutted to the bottom surface of the bearing plate.

Specifically, the elastic support pad comprises an elastic plate and a plurality of elastic lugs, wherein the elastic plate is arranged in the box body, the elastic lugs are respectively arranged on the top surface of the elastic plate, the elastic lugs are arranged at intervals, and the elastic lugs are respectively abutted to the bottom surface of the bearing plate.

Specifically, the top surface of the elastic lug is an arc-shaped surface.

Specifically, form on the diapire of box inside with the loading board profile is the guide way the loading board is located the guide way, just a plurality of vertical lateral walls of loading board butt respectively in a plurality of vertical cell walls of guide way.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of a transformer noise reduction device according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural view of an elastic support pad according to an embodiment of the present utility model.

As shown in the figure: 100. a transformer; 1. a case; 2. a vibration damping mechanism; 21. a carrying plate; 22. a positioning plate; 23. a damping spring; 24. a first elastic pad; 25. a second elastic pad; 26. an elastic support pad; 261. an elastic plate; 262. an elastic bump; 3. a sound insulation mechanism; 31. a sound insulation board; 32. a sound absorbing cotton board; 4. a guide post; 5. a guide hole; 6. a guide groove; 7. vacuum sound-proof cavity.

Description of the embodiments

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. On the contrary, the embodiments of the utility model include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.

The transformer noise reduction device according to the embodiment of the present utility model is described below with reference to the accompanying drawings.

As shown in fig. 1, the transformer noise reduction device according to the embodiment of the present utility model may include a case 1, a vibration reduction mechanism 2, and a sound insulation mechanism 3, where the vibration reduction mechanism 2 and the sound insulation mechanism 3 are respectively disposed in the case 1, and the vibration reduction mechanism 2 includes a carrier plate 21, a positioning plate 22, a vibration reduction spring 23, a first elastic pad 24, and a second elastic pad 25.

Wherein, the loading board 21 liftable setting is in box 1, transformer 100 sets up on loading board 21, locating plate 22 sets up in box 1, locating plate 22 is located loading board 21 top, damping spring 23 sets up in box 1, damping spring 23 is equipped with a plurality ofly, damping spring 23's both ends are acted on loading board 21 bottom surface and box 1 bottom respectively, first elastic pad 24 sets up in box 1, and first elastic pad 24 butt is in damping spring 23 bottom, first elastic pad 24 is equipped with a plurality ofly, first elastic pad 24 and damping spring 23 one-to-one, second elastic pad 25 sets up in locating plate 22 bottom, second elastic pad 25 butt is in loading board 21 top surface.

It should be noted that, the carrying plate 21 may be a square plate or a circular plate, the transformer 100 may be detachably mounted on the top surface of the carrying plate 21 in a threaded manner, and the positioning plate 22 may be detachably mounted in the case 1 in a threaded manner.

Specifically, when the transformer 100 vibrates during operation, the vibration generated by the transformer 100 is transmitted to the bearing plate 21, the bearing plate 21 slightly shakes in the box 1, the damping springs 23 absorb part of the vibration, and meanwhile, when the bearing plate 21 and the damping springs 23 transmit the vibration, since the first elastic pad 24 and the second elastic pad 25 are made of elastic materials, the damping springs 23 and the bearing plate 21 are not easy to generate impact sound with the first elastic pad 24 and the second elastic pad 25 when moving due to the transmission of the vibration, and the first elastic pad 24 and the second elastic pad 25 absorb part of the vibration, namely, the noise generated in the box 1 can be reduced. After the vibration of the transformer 100 is absorbed by the vibration damping mechanism 2, the vibration amplitude of the case 1 can be reduced, and noise generated by the vibration of the case 1 can be reduced. Meanwhile, the soundproof mechanism 3 has a soundproof effect, reduces noise from the propagation path, and improves the noise reduction effect on the transformer 100.

In one embodiment of the present utility model, as shown in fig. 1 and 2, a plurality of guide posts 4 are integrally connected to the bottom surface of the carrier plate 21, a plurality of guide holes 5 matched with the guide posts 4 are formed in the bottom of the box 1, the guide posts 4 are arranged in the guide holes 5 in a penetrating manner, the damping springs 23 are sleeved on the guide posts 4, and the guide posts 4 are respectively in one-to-one correspondence with the damping springs 23 and the guide holes 5. In the present embodiment, the number of the guide posts 4 may be four, and the four guide posts 4 are respectively located at four corners of the carrier plate 21.

Further, as shown in fig. 1 and 2, a guiding groove 6 with the same contour as the bearing plate 21 is formed on the bottom wall of the inside of the box 1, the bearing plate 21 is located in the guiding groove 6, and a plurality of vertical side walls of the bearing plate 21 are respectively abutted against a plurality of vertical groove walls of the guiding groove 6. The guide groove 6 improves the stability of the carrier plate 21 and the transformer 100 in the case 1.

Further, as shown in fig. 2, the elastic support mechanism may further include an elastic support pad 26, and the elastic support pad 26 is placed in the guide groove 6.

As shown in fig. 2 and 3, the elastic supporting pad 26 may include an integrally connected elastic plate 261 and a plurality of elastic protrusions 262, wherein the elastic plate 261 is disposed in the guiding slot 6, the plurality of elastic protrusions 262 are fixed above the elastic plate 261, the plurality of elastic protrusions 262 are disposed at intervals, and the plurality of elastic protrusions 262 are all abutted against the bottom surface of the carrier 21. The top surface of the elastic protruding block 262 is arc-shaped, and the plurality of elastic protruding blocks 262 may be arranged in a circumferential array, a rectangular array or other manners on the top surface of the elastic plate 261.

It will be appreciated that the transformer 100 generates heat during operation, which heat is transferred to the carrier plate 21. The plurality of elastic protrusions 262 of the arc structure support the carrier plate 21, and the elastic protrusions 262 of the arc structure reduce the contact area between the elastic support pad 26 and the carrier plate 21, so that the carrier plate 21 has enough heat dissipation space.

It should be noted that the materials of the first elastic pad 24, the second elastic pad 25 and the elastic supporting pad 26 may be rubber or other soft materials.

In one embodiment of the present utility model, as shown in fig. 1, the sound insulation mechanism 3 may include a sound insulation plate 31 and a sound absorbing cotton plate 32, wherein the sound insulation plate 31 may be mounted on the inner wall of the case 1 by screwing, and the sound absorbing cotton plate 32 may be adhered to the side of the sound insulation plate 31 facing away from the inner wall of the case 1 by glue. Wherein the inside of the baffle 31 is subjected to a vacuuming treatment to form a vacuum sound-deadening chamber 7. The vacuum sound insulation cavity 7 has a good sound insulation effect, and the vacuum sound insulation cavity 7 can reduce materials required by the sound insulation plate 31, so that the vacuum sound insulation cavity has an environment-friendly effect.

It should be noted that the sound insulation mechanism 3 may be provided with five groups, four groups may be located on four vertical side walls inside the case 1, and another group may be mounted on a top side wall inside the case 1.

It will be appreciated that part of the noise generated during operation of the transformer 100 will be absorbed by the sound absorbing cotton plate 32, and the attenuated noise will be blocked by the sound insulating plate 31, so that the noise is reduced from the propagation path, and the noise reduction effect on the transformer 100 is improved.

Specifically, when the transformer 100 vibrates during operation, the vibration generated by the transformer 100 is transmitted to the bearing plate 21, the bearing plate 21 slightly shakes in the box 1, the damping springs 23 absorb part of the vibration, and meanwhile, when the bearing plate 21 and the damping springs 23 transmit the vibration, since the first elastic pad 24 and the second elastic pad 25 are made of elastic materials, the damping springs 23 and the bearing plate 21 are not easy to generate impact sound with the first elastic pad 24 and the second elastic pad 25 when moving due to the transmission of the vibration, and the first elastic pad 24 and the second elastic pad 25 absorb part of the vibration, namely, the noise generated in the box 1 can be reduced. After the vibration of the transformer 100 is absorbed by the vibration damping mechanism 2, the vibration amplitude of the case 1 can be reduced, and noise generated by the vibration of the case 1 can be reduced. Meanwhile, part of noise generated during the operation of the transformer 100 is absorbed by the sound absorbing cotton plate 32, the attenuated noise is blocked by the sound insulating plate 31, the noise is attenuated from the propagation path, and the noise reduction effect on the transformer 100 is improved.

In summary, the transformer noise reduction device provided by the embodiment of the utility model can absorb part of vibration generated in the working process of the transformer, and improves the noise reduction effect on the transformer.

In the description of this specification, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. A noise reduction device for a transformer is characterized by comprising a box body, a vibration reduction mechanism and a sound insulation mechanism, wherein,

the vibration reduction mechanism and the sound insulation mechanism are respectively arranged in the box body;

the vibration damping mechanism comprises a bearing plate, a positioning plate, a vibration damping spring, a first elastic pad and a second elastic pad, wherein,

the bearing plate can be arranged in the box body in a lifting manner, and the transformer is arranged on the bearing plate;

the positioning plate is arranged in the box body and is positioned above the bearing plate;

the damping springs are arranged in the box body, a plurality of damping springs are arranged, and two ends of each damping spring respectively act on the bottom surface of the bearing plate and the bottom of the box body;

the first elastic pads are arranged in the box body and are abutted to the bottom ends of the damping springs, a plurality of first elastic pads are arranged, and the first elastic pads correspond to the damping springs one by one;

the second elastic pad is arranged at the bottom of the positioning plate and is abutted to the top surface of the bearing plate.

2. The transformer noise reduction device according to claim 1, wherein the sound insulation mechanism comprises a sound insulation plate and a sound absorbing cotton plate, wherein,

the sound insulation plate is arranged on the inner wall of the box body;

the sound absorbing cotton plate is arranged on one side, away from the inner wall of the box body, of the sound insulating plate.

3. The transformer noise reducer of claim 2, wherein the interior of the baffle forms a vacuum baffle cavity.

4. The transformer noise reduction device according to claim 1, wherein a plurality of guide posts are arranged on the bottom surface of the bearing plate, a plurality of guide holes are formed in the bottom of the box body, the guide posts penetrate through the guide holes, the damping springs are sleeved on the guide posts, and the guide posts are respectively in one-to-one correspondence with the damping springs and the guide holes.

5. The transformer noise reduction device according to claim 1, wherein the vibration reduction mechanism further comprises an elastic support pad, the elastic support pad is disposed in the box body, and the elastic support pad abuts against the bottom surface of the bearing plate.

6. The transformer noise reduction device according to claim 5, wherein the elastic support pad comprises an elastic plate and a plurality of elastic protruding blocks, the elastic plate is arranged in the box body, the elastic protruding blocks are respectively arranged on the top surface of the elastic plate, the elastic protruding blocks are arranged at intervals, and the elastic protruding blocks are respectively abutted to the bottom surface of the bearing plate.

7. The transformer noise reducer of claim 6, wherein the top surface of the resilient protrusion is arcuate.

8. The transformer noise reduction device according to claim 1, wherein a guide groove with the same contour as the bearing plate is formed on the bottom wall inside the box body, the bearing plate is located in the guide groove, and a plurality of vertical side walls of the bearing plate are respectively abutted against a plurality of vertical groove walls of the guide groove.