A transformer core noise reduction structure based on a damping interlayer technology

Abstract

The utility model relates to transformer technical field discloses a transformer core noise reduction structure based on damping interlayer technology, solved the problem that the current transformer core loud noise, it includes transformer core body and core clamp piece, the transformer core body is installed in the inside of core clamp piece, is provided with the damping shock attenuation layer at the junction of transformer core body and core clamp piece, the bottom of core clamp piece is fixedly provided with the damping shock attenuation base, the damping shock attenuation layer is by stressed metal plate no.

Description

Technical Field

[0001] This utility model belongs to the field of transformer technology, specifically a transformer core noise reduction structure based on damping sandwich technology. Background Technology

[0002] Transformer cores generate vibrations during operation, which in turn produce noise. These vibrations and noises not only affect the service life of the transformer but also impact surrounding residents. Therefore, reducing the noise of transformer cores is of paramount importance. This application proposes a transformer core noise reduction structure based on damping sandwich technology. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a transformer core noise reduction structure based on damping sandwich technology, which effectively solves the problem of high noise in existing transformer cores.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a transformer core noise reduction structure based on damping sandwich technology, comprising a transformer core body and a core clamp, wherein the transformer core body is installed inside the core clamp, a damping and shock-absorbing layer is provided at the connection between the transformer core body and the core clamp, and a damping and shock-absorbing base is fixedly provided at the bottom end of the core clamp.

[0005] The damping and shock absorption layer consists of a first load-bearing metal plate, a second load-bearing metal plate, and a nitrile rubber damping sheet. The nitrile rubber damping sheet is located between the first load-bearing metal plate and the second load-bearing metal plate and is connected by an adhesive. The other side of the first load-bearing metal plate is attached to the core clamp, and the other side of the second load-bearing metal plate is attached to the transformer core body.

[0006] The damping shock absorber base consists of a stainless steel base plate, an asphalt damping layer, a stainless steel intermediate layer, a nitrile rubber damping plate, and a stainless steel top plate. The asphalt damping layer is located at the top of the stainless steel base plate, the stainless steel intermediate layer is located at the top of the asphalt damping layer, the nitrile rubber damping plate is located at the top of the stainless steel intermediate layer, and the stainless steel top plate is located at the top of the nitrile rubber damping plate. The connecting surfaces of the stainless steel base plate, the asphalt damping layer, the stainless steel intermediate layer, the nitrile rubber damping plate, and the stainless steel top plate are all connected by adhesive.

[0007] Preferably, the outer surface of the transformer core body is provided with an epoxy resin paint layer.

[0008] Preferably, both the first and second stressed metal plates are provided with a polyurethane coating layer one on the side near the nitrile rubber damping sheet, and both the stainless steel intermediate layer and the stainless steel top plate are provided with a polyurethane coating layer two on the side near the nitrile rubber damping sheet.

[0009] Preferably, two bolt mounting seats are fixedly provided at both ends of the stainless steel substrate, and several bolt mounting angle seats matching the iron core clamp are fixedly provided on the side of the top of the stainless steel top plate. Several positioning posts are welded to the top of the stainless steel substrate. Several positioning holes matching the positioning posts are opened on the asphalt damping layer, the stainless steel intermediate layer, the nitrile rubber damping plate and the stainless steel top plate. The inner diameter of the positioning holes is larger than the diameter of the positioning posts.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] (1) In operation, by setting up a damping and vibration reduction layer composed of a first load-bearing metal plate, a second load-bearing metal plate and a nitrile rubber damping sheet, the vibration at the connection between the transformer core body and the core clamp can be reduced, thereby achieving a noise reduction effect. By setting up a damping and vibration reduction base composed of a stainless steel base plate, an asphalt damping layer, a stainless steel intermediate layer, a nitrile rubber damping plate and a stainless steel top plate, the vibration reduction and noise reduction performance of the transformer core mounting base can be improved.

[0012] (2) By setting an epoxy resin paint layer, the outer surface of the transformer core body can be sealed. By setting a bolt mounting bracket, the core clamps can be installed and fixed. By setting a positioning post and positioning hole, the auxiliary positioning function can be realized, avoiding horizontal displacement caused by loosening at the connection of the stainless steel base plate, asphalt damping layer, stainless steel intermediate layer, nitrile rubber damping plate and stainless steel top plate. By setting polyurethane paint layer one and polyurethane paint layer two, the vibration reduction and noise reduction effect can be further achieved. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Fig. 1 This is a schematic diagram of the transformer core noise reduction structure based on damping sandwich technology of this utility model;

[0016] Fig. 2 This is a schematic diagram of the damping and shock absorption base structure of this utility model;

[0017] Fig. 3 This is an exploded view of the damping and shock-absorbing base of this utility model;

[0018] Fig. 4 This is a schematic diagram of the damping and shock absorption layer structure of this utility model;

[0019] In the diagram: 1. Transformer core body; 2. Core clamp; 3. Damping and vibration damping layer; 4. Damping and vibration damping base; 5. Load-bearing metal plate one; 6. Load-bearing metal plate two; 7. Nitrile rubber damping sheet; 8. Stainless steel base plate; 9. Asphalt damping layer; 10. Stainless steel intermediate layer; 11. Nitrile rubber damping plate; 12. Stainless steel top plate; 13. Epoxy resin paint layer; 14. Polyurethane paint layer one; 15. Polyurethane paint layer two; 16. Bolt mounting seat; 17. Bolt mounting angle seat; 18. Positioning post; 19. Positioning hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Depend on Figs. 1 to 4 This invention discloses a transformer core noise reduction structure based on damping sandwich technology, comprising a transformer core body 1 and a core clamp 2. The transformer core body 1 is installed inside the core clamp 2. A damping and vibration damping layer 3 is provided at the connection between the transformer core body 1 and the core clamp 2. A damping and vibration damping base 4 is fixedly provided at the bottom end of the core clamp 2. The damping and vibration damping layer 3 is composed of a first load-bearing metal plate 5, a second load-bearing metal plate 6, and a nitrile rubber damping sheet 7. The nitrile rubber damping sheet 7 is located between the first load-bearing metal plate 5 and the second load-bearing metal plate 6 and is connected by an adhesive. The other side of the first load-bearing metal plate 5 is attached to the core clamp 2. The other side of the plate 6 is attached to the transformer core body 1. The damping and shock absorption base 4 is composed of a stainless steel base plate 8, an asphalt damping layer 9, a stainless steel intermediate layer 10, a nitrile rubber damping plate 11, and a stainless steel top plate 12. The asphalt damping layer 9 is located at the top of the stainless steel base plate 8, the stainless steel intermediate layer 10 is located at the top of the asphalt damping layer 9, the nitrile rubber damping plate 11 is located at the top of the stainless steel intermediate layer 10, and the stainless steel top plate 12 is located at the top of the nitrile rubber damping plate 11. The connecting surfaces of the stainless steel base plate 8, the asphalt damping layer 9, the stainless steel intermediate layer 10, the nitrile rubber damping plate 11, and the stainless steel top plate 12 are all connected by adhesive.

[0022] The first load-bearing metal plate 5 and the second load-bearing metal plate 6 can increase the contact area with the transformer core body 1 and the core clamp 2. The nitrile rubber damping sheet 7 plays a role in shock absorption and noise reduction, which can reduce the vibration transmission between the transformer core body 1 and the core clamp 2. The asphalt damping layer 9 and the nitrile rubber damping plate 11 can play a role in shock absorption and noise reduction. The stainless steel base plate 8, the stainless steel intermediate layer 10 and the stainless steel top plate 12 can play a role in stable support.

[0023] An epoxy resin paint layer 13 is provided on the outer surface of the transformer core body 1, which can seal the outer surface of the transformer core body 1.

[0024] Polyurethane coating layer 14 is provided on the side of the load-bearing metal plate 15 and the load-bearing metal plate 26 near the nitrile rubber damping sheet 7, and polyurethane coating layer 25 is provided on the side of the stainless steel intermediate layer 10 and the stainless steel top plate 12 near the nitrile rubber damping plate 11, which can further play a damping and shock absorption effect and reduce vibration transmission.

[0025] Two bolt mounting seats 16 are fixedly installed at both ends of the stainless steel substrate 8, which can be installed with anchor bolts. Several bolt mounting angle seats 17 that match the iron core clamp 2 are fixedly installed on the side of the top of the stainless steel top plate 12, which can facilitate the installation and fixation of the iron core clamp 2 and improve the installation stability of the iron core clamp 2. Several positioning posts 18 are welded to the top of the stainless steel substrate 8. Several positioning holes 19 that match the positioning posts 18 are opened on the asphalt damping layer 9, the stainless steel intermediate layer 10, the nitrile rubber damping plate 11 and the stainless steel top plate 12. The inner diameter of the positioning holes 19 is larger than the diameter of the positioning posts 18. The positioning posts 18 and the positioning holes 19 can achieve the function of auxiliary positioning, avoid horizontal displacement when the adhesive connection fails, and improve the overall stability.

[0026] In operation, by setting up a damping and vibration reduction layer composed of a first load-bearing metal plate, a second load-bearing metal plate, and nitrile rubber damping sheets, the vibration at the connection between the transformer core and the core clamp can be reduced, thereby achieving a noise reduction effect. By setting up a damping and vibration reduction base composed of a stainless steel base plate, an asphalt damping layer, a stainless steel intermediate layer, a nitrile rubber damping plate, and a stainless steel top plate, the vibration reduction and noise reduction performance of the transformer core mounting base can be improved. By setting up an epoxy resin paint layer, the outer surface of the transformer core can be sealed. By setting up bolt mounting brackets, the installation and fixing of the core clamp can be facilitated. By setting up positioning posts and positioning holes, an auxiliary positioning function can be achieved, preventing horizontal displacement caused by loosening at the connection between the stainless steel base plate, the asphalt damping layer, the stainless steel intermediate layer, the nitrile rubber damping plate, and the stainless steel top plate. By setting up polyurethane paint layer one and polyurethane paint layer two, the vibration reduction and noise reduction effect can be further improved.

Claims

1. A transformer core noise reduction structure based on damping sandwich technology, comprising a transformer core body (1) and a core clamp (2), characterized in that: The transformer core body (1) is installed inside the core clamp (2). A damping and shock-absorbing layer (3) is provided at the connection between the transformer core body (1) and the core clamp (2). A damping and shock-absorbing base (4) is fixedly provided at the bottom end of the core clamp (2). The damping and shock absorption layer (3) is composed of a first load-bearing metal plate (5), a second load-bearing metal plate (6) and a nitrile rubber damping sheet (7). The nitrile rubber damping sheet (7) is located between the first load-bearing metal plate (5) and the second load-bearing metal plate (6) and is connected by an adhesive. The other side of the first load-bearing metal plate (5) is attached to the core clamp (2), and the other side of the second load-bearing metal plate (6) is attached to the transformer core body (1). The damping and shock absorption base (4) is composed of a stainless steel base plate (8), an asphalt damping layer (9), a stainless steel intermediate layer (10), a nitrile rubber damping plate (11), and a stainless steel top plate (12). The asphalt damping layer (9) is located at the top of the stainless steel base plate (8), the stainless steel intermediate layer (10) is located at the top of the asphalt damping layer (9), the nitrile rubber damping plate (11) is located at the top of the stainless steel intermediate layer (10), and the stainless steel top plate (12) is located at the top of the nitrile rubber damping plate (11). The connecting surfaces of the stainless steel base plate (8), the asphalt damping layer (9), the stainless steel intermediate layer (10), the nitrile rubber damping plate (11), and the stainless steel top plate (12) are all connected by adhesive.

2. The transformer core noise reduction structure based on damping sandwich technology according to claim 1, characterized in that: The outer surface of the transformer core body (1) is provided with an epoxy resin paint layer (13).

3. The transformer core noise reduction structure based on damping sandwich technology according to claim 1, characterized in that: Both the first (5) and the second (6) of the load-bearing metal plate are provided with a polyurethane coating layer (14) on the side near the nitrile rubber damping sheet (7).

4. The transformer core noise reduction structure based on damping sandwich technology according to claim 1, characterized in that: The stainless steel intermediate layer (10) and the stainless steel top plate (12) are both provided with a polyurethane coating layer (15) on the side near the nitrile rubber damping plate (11).

5. A transformer core noise reduction structure based on damping sandwich technology according to claim 1, characterized in that: Two bolt mounting seats (16) are fixedly provided at both ends of the stainless steel substrate (8), and several bolt mounting corner seats (17) that match the iron core clamp (2) are fixedly provided on the side of the top of the stainless steel top plate (12).

6. The transformer core noise reduction structure based on damping sandwich technology according to claim 1, characterized in that: The top of the stainless steel substrate (8) is welded with several positioning posts (18). Several positioning holes (19) matching the positioning posts (18) are opened on the asphalt damping layer (9), the stainless steel intermediate layer (10), the nitrile rubber damping plate (11) and the stainless steel top plate (12). The inner diameter of the positioning hole (19) is larger than the diameter of the positioning post (18).

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