Low-noise dry-type transformer structure

Abstract

The low-noise dry-type transformer structure comprises a transformer noise reduction shell and a dry-type transformer body, the side wall of the transformer noise reduction shell is connected with a sliding door plate in a sliding mode, and the side wall and the upper surface of the sliding door plate are connected with ventilation grid meshes in an embedded mode. The inner side wall of the transformer noise reduction shell is fixedly connected with an exhaust fan used for ventilation, the bottom wall of an inner cavity of the transformer noise reduction shell is fixedly connected with a channel steel base, the upper surface of the channel steel base is fixedly connected with a damping spring, the movable end of the damping spring is fixedly connected with a transformer base, and the upper surface of the transformer base is fixedly connected with a dry-type transformer body. According to the utility model, noise with different frequencies can be effectively absorbed and blocked, the noise generated during the operation of the dry-type transformer is obviously reduced, the influence on the surrounding environment is reduced, the vibration generated during the operation of the dry-type transformer can be effectively absorbed and buffered, the vibration transmission is reduced, and the noise is further reduced. And the stability and the service life of the transformer can be improved.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically a low-noise dry-type transformer structure. Background Technology

[0002] Dry-type transformers are commonly used electrical devices in power systems, widely applied in industrial, commercial, and residential sectors. However, traditional dry-type transformers generate significant noise during operation, which not only pollutes the surrounding environment but also affects people's quality of life and work. Noise reduction measures for traditional transformers are often simplistic and have limited effectiveness. For example, some transformers are only wrapped with simple sound insulation materials, which are insufficient to achieve ideal noise reduction for different frequencies; moreover, they lack effective vibration damping design, causing vibrations generated during transformer operation to further exacerbate noise generation. Therefore, those skilled in the art have provided a low-noise dry-type transformer structure to address the problems mentioned in the background section. Utility Model Content

[0003] The purpose of this invention is to provide a low-noise dry-type transformer structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A low-noise dry-type transformer structure includes a transformer noise-reducing shell and a dry-type transformer body. A sliding door panel is slidably connected to the side wall of the transformer noise-reducing shell. Ventilation grilles are embedded in both the side wall and the upper surface of the sliding door panel. An exhaust fan for ventilation is fixedly connected to the inner side wall of the transformer noise-reducing shell. A channel steel base is fixedly connected to the bottom wall of the inner cavity of the transformer noise-reducing shell. A damping spring is fixedly connected to the upper surface of the channel steel base. The movable end of the damping spring is fixedly connected to the transformer base. The dry-type transformer body is fixedly connected to the upper surface of the transformer base.

[0006] Furthermore, a slotted plate is fixedly connected to the lower surface of the transformer base, and two sets of sliders are slidably connected to the inner side wall of the slotted plate, with a return spring fixedly connected between the sliders.

[0007] Furthermore, a connecting rod is rotatably connected to the side wall of the slider, and one end of the connecting rod is rotatably connected to the outer side wall of the damping spring.

[0008] Furthermore, the transformer noise reduction housing consists of a sound insulation layer, a damping layer, and an outer surface layer, from the inside out. The sound insulation layer is made of gradient density polyurethane foam material with a density gradient distribution of 80 kg / m³. 3 →40kg / m 3 .

[0009] Furthermore, the damping layer is made of butyl rubber modified asphalt material and is bonded to the sound insulation layer and the outer surface layer by pressure-sensitive adhesive.

[0010] Furthermore, the outermost layer is a perforated metal plate with a perforation rate of 20%.

[0011] By adopting the above technical solution

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The combined damping structure of damping springs, slot plates, sliders, and return springs can effectively absorb and buffer the vibrations generated during the operation of dry-type transformers, reduce vibration transmission, further reduce noise generation, and also help improve the stability and service life of the transformer.

[0014] 2. The design of the ventilation grille and exhaust fan ensures good air circulation inside the transformer's noise-reducing casing, which can promptly remove the heat generated during the operation of the dry-type transformer, ensuring that the transformer operates at a suitable temperature and improving the transformer's working efficiency and reliability.

[0015] 3. By adopting a multi-layer composite structure transformer noise reduction shell, combined with a gradient density polyurethane foam sound insulation layer, a butyl rubber modified asphalt damping layer, and a perforated metal plate outer surface layer, it can effectively absorb and block noise of different frequencies, significantly reducing the noise generated by the dry-type transformer during operation and reducing the impact on the surrounding environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a low-noise dry-type transformer.

[0017] Figure 2 This is a schematic diagram of the internal structure of the noise reduction casing of a low-noise dry-type transformer.

[0018] Figure 3 A low-noise dry-type transformer structure Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a cross-sectional view of the noise reduction casing of a low-noise dry-type transformer structure.

[0020] In the diagram: 1. Transformer noise reduction casing; 101. Sound insulation layer; 102. Damping layer; 103. Outer surface layer; 2. Sliding door panel; 3. Ventilation grille; 4. Exhaust fan; 5. Channel steel base; 6. Damping spring; 7. Transformer base; 8. Dry-type transformer body; 9. Channel plate; 10. Slider; 11. Return spring; 12. Connecting rod. Detailed Implementation

[0021] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] Please see Figures 1-4 This utility model provides an embodiment of a low-noise dry-type transformer structure, including a transformer noise-reducing shell 1 and a dry-type transformer body 8. A sliding door plate 2 is slidably connected to the side wall of the transformer noise-reducing shell 1. Ventilation grilles 3 are embedded in the side wall and upper surface of the sliding door plate 2. An exhaust fan 4 for ventilation is fixedly connected to the inner side wall of the transformer noise-reducing shell 1. A channel steel base 5 is fixedly connected to the bottom wall of the inner cavity of the transformer noise-reducing shell 1. A damping spring 6 is fixedly connected to the upper surface of the channel steel base 5. A transformer base 7 is fixedly connected to the movable end of the damping spring 6. The dry-type transformer body 8 is fixedly connected to the upper surface of the transformer base 7. A slotted plate 9 is fixedly connected to the lower surface of the transformer base 7. Two sets of sliders 10 are slidably connected to the inner side wall of the slotted plate 9. A return spring 11 is fixedly connected between the sliders 10. A connecting rod 12 is rotatably connected to the side wall of the slider 10, and one end of the connecting rod 12 is rotatably connected to the outer side wall of the damping spring 6. When the dry-type transformer body 8 vibrates during operation, the damping spring 6 can absorb and buffer the vibration. Energy is reduced, and vibration is transmitted to the transformer noise reduction housing 1. At the same time, when the damping spring 6 extends or retracts, it drives the connecting rod 12 to make the slider 10 slide within the slot plate 9. The return spring 11 further plays a buffering and adjusting role, enhancing the shock absorption effect. The combined shock absorption structure of the damping spring 6, slot plate 9, slider 10, and return spring 11 can effectively absorb and buffer the vibration generated during the operation of the dry-type transformer, reduce vibration transmission, further reduce noise generation, and also help improve the stability and service life of the transformer. When the exhaust fan 4 is working, the air is convected inside and outside the transformer noise reduction housing 1 through the ventilation grid 3, thereby removing the heat generated by the dry-type transformer body 8 during operation and ensuring the normal operating temperature of the transformer. The design of the ventilation grid 3 and the exhaust fan 4 ensures good air circulation inside the transformer noise reduction housing 1, which can remove the heat generated by the dry-type transformer during operation in a timely manner, ensuring that the transformer operates at a suitable temperature and improving the working efficiency and reliability of the transformer.

[0023] In this embodiment, the transformer noise reduction housing 1 is composed of a sound insulation layer 101, a damping layer 102, and an outer surface layer 103 from the inside out. The sound insulation layer 101 is made of gradient density polyurethane foam material with a density gradient distribution of 80 kg / m³. 3 →40kg / m 3 The damping layer 102 is made of butyl rubber modified asphalt material and is bonded to the sound insulation layer 101 and the outer surface layer 103 by pressure-sensitive adhesive. The outer surface layer 103 is a perforated metal plate with a perforation rate of 20%. The sound insulation layer 101 is made of gradient density polyurethane foam material, whose density gradient distribution can effectively absorb sound waves of different frequencies and reduce noise propagation. The damping layer 102 is made of butyl rubber modified asphalt material, which can consume sound wave energy and reduce noise reflection and propagation. The outer surface layer 103 is a perforated metal plate with a perforation rate of 20%. The perforated metal plate can form a resonant sound-absorbing structure with the air to further absorb noise of specific frequencies. By adopting a multi-layer composite structure transformer noise reduction shell 1, combined with the gradient density polyurethane foam sound insulation layer 101, the butyl rubber modified asphalt damping layer 102 and the perforated metal plate outer surface layer 103, noise of different frequencies can be effectively absorbed and blocked, significantly reducing the noise generated by the dry-type transformer during operation and reducing the impact on the surrounding environment.

[0024] When the dry-type transformer body 8 vibrates during operation, the damping spring 6 can absorb and buffer the vibration energy, reducing the vibration transmission to the transformer noise reduction shell 1. At the same time, when the damping spring 6 extends or retracts, it will drive the connecting rod 12 to make the slider 10 slide in the slot plate 9. The return spring 11 further plays a buffering and adjusting role, enhancing the vibration reduction effect. The combined vibration reduction structure of the damping spring 6, slot plate 9, slider 10, and return spring 11 can effectively absorb and buffer the vibration generated during the operation of the dry-type transformer, reduce vibration transmission, and further reduce noise generation. At the same time, when the exhaust fan 4 is working, the ventilation grille 3 makes the air form convection inside and outside the transformer noise reduction shell 1, thereby removing the heat generated by the dry-type transformer body 8 during operation and ensuring the normal operating temperature of the transformer. The design of the ventilation grille 3 and the exhaust fan 4 ensures good air circulation inside the transformer noise reduction shell 1.

[0025] The combined damping structure of damping spring 6, slot plate 9, slider 10, and return spring 11 effectively absorbs and buffers the vibrations generated during the operation of the dry-type transformer, reduces vibration transmission, further reduces noise generation, and also helps improve the stability and service life of the transformer. The design of ventilation grid 3 and exhaust fan 4 ensures good air circulation inside the transformer noise reduction shell 1, which can promptly remove the heat generated during the operation of the dry-type transformer, ensuring that the transformer operates at a suitable temperature and improving the transformer's working efficiency and reliability. By adopting a multi-layer composite structure for the transformer noise reduction shell 1, combined with a gradient density polyurethane foam sound insulation layer 101, a butyl rubber modified asphalt damping layer 102, and a perforated metal plate outer surface layer 103, it can effectively absorb and block noise of different frequencies, significantly reducing the noise generated during the operation of the dry-type transformer and reducing the impact on the surrounding environment.

[0026] This specification describes the embodiments, but not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A low-noise dry-type transformer structure, characterized in that, The transformer includes a noise-reducing housing (1) and a dry-type transformer body (8). The noise-reducing housing (1) is slidably connected to a sliding door panel (2). Ventilation grids (3) are embedded in both the side wall and the upper surface of the sliding door panel (2). An exhaust fan (4) for ventilation is fixedly connected to the inner side wall of the noise-reducing housing (1). A channel steel base (5) is fixedly connected to the bottom wall of the inner cavity of the noise-reducing housing (1). A damping spring (6) is fixedly connected to the upper surface of the channel steel base (5). A transformer base (7) is fixedly connected to the movable end of the damping spring (6). The dry-type transformer body (8) is fixedly connected to the upper surface of the transformer base (7).

2. The low-noise dry-type transformer structure according to claim 1, characterized in that, The transformer base (7) is fixedly connected to a slot plate (9) on its lower surface. Two sets of sliders (10) are slidably connected to the inner side wall of the slot plate (9). A return spring (11) is fixedly connected between the sliders (10).

3. The low-noise dry-type transformer structure according to claim 2, characterized in that, The slider (10) is rotatably connected to a connecting rod (12) on its side wall, and one end of the connecting rod (12) is rotatably connected to the outer side wall of the damping spring (6).

4. The low-noise dry-type transformer structure according to claim 1, characterized in that, The transformer noise reduction shell (1) consists of a sound insulation layer (101), a damping layer (102), and an outer surface layer (103) from the inside out. The sound insulation layer (101) is made of gradient density polyurethane foam material with a density gradient distribution of 80 kg / m³. 3 →40kg / m 3 .

5. The low-noise dry-type transformer structure according to claim 4, characterized in that, The damping layer (102) is made of butyl rubber modified asphalt material and is bonded to the sound insulation layer (101) and the outer surface layer (103) by pressure-sensitive adhesive.

6. The low-noise dry-type transformer structure according to claim 4, characterized in that, The outer layer (103) is a perforated metal plate with a perforation rate of 20%.

Images