Low-noise dry-type power transformer

Abstract

The utility model relates to the technical field of power transformers, and discloses a low-noise dry-type power transformer which comprises a dry-type power transformer body and a noise reduction outer box, the dry-type power transformer body is fixedly installed on the inner side of the noise reduction outer box, and annular sound absorption ends are arranged on the two sides of the noise reduction outer box. According to the sound-absorbing and noise-reducing box, noise can be conducted into the sound-absorbing and noise-reducing pipe from the annular sound-absorbing end head for sound absorption and noise reduction, the cross-shaped sound-absorbing plate and the rectangular sound-absorbing plate are arranged in the sound-absorbing and noise-reducing pipe, the sound-absorbing and noise-reducing capacity is enhanced, the sound-absorbing and noise-reducing outer cylinder is used for noise reduction and sound absorption, and the noise-reducing type base plate assists in noise reduction and sound absorption in the box body. And the sound-absorbing and noise-reducing pipe is mounted on the annular sound-absorbing end in a sleeving manner, and the sound-absorbing and noise-reducing outer cylinder is mounted at the other end of the sound-absorbing and noise-reducing pipe, so that the overall disassembly and assembly are convenient, the sound-absorbing and noise-reducing capability and the sound-absorbing and noise-reducing effect of the device are excellent, the overall disassembly and assembly are simple and convenient, and the sound-absorbing and noise-reducing device is suitable for popularization and use.

Description

Technical Field

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

[0002] Dry-type transformers are transformers that are completely dry and rely on air for heat dissipation. Dry-type power transformers are high-strength, high-mechanical-strength, and high-heat-resistant transformers, making them excellent products for urban power grid upgrades. They are particularly suitable for important locations requiring fire prevention, explosion prevention, and moisture prevention, such as high-rise buildings, airports, power plants, and commercial centers. They are commonly seen in daily life, with transformers found in residential areas and factories. However, because dry-type transformers often generate significant noise during operation, noise reduction and environmental protection measures are necessary.

[0003] During operation, the current in a dry-type power transformer causes the transformer itself to vibrate. This vibration causes resonance in its components and surrounding fixed objects, resulting in relative noise during operation. Traditional noise reduction and sound insulation typically use an enclosure to isolate and reduce the noise generated by vibration, achieving a low-noise effect. However, in actual operation, a simple soundproof enclosure is usually installed, resulting in relatively ordinary overall noise reduction and sound insulation capabilities. It is difficult to absorb and reduce the noise emitted, and the low-noise and environmental protection capabilities are relatively insufficient. Furthermore, the installation and disassembly of the noise reduction and protection structure are relatively inconvenient and difficult. Therefore, we propose a low-noise dry-type power transformer to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a low-noise dry-type power transformer with sound absorption and noise reduction capabilities, excellent sound absorption and noise reduction effects, and simple and convenient overall assembly and disassembly, making it suitable for widespread use.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a low-noise dry-type power transformer, comprising a dry-type power transformer body and a noise-reducing outer casing, wherein the dry-type power transformer body is fixedly installed inside the noise-reducing outer casing;

[0008] The noise reduction outer casing is provided with annular sound-absorbing ends on both sides. A sound-absorbing and noise-reducing tube is fixedly fitted on the opposite side of the two annular sound-absorbing ends. Multiple cross-shaped sound-absorbing plates are arranged at equal intervals inside the two sound-absorbing and noise-reducing tubes. A sound-absorbing and noise-reducing outer cylinder is fitted on the opposite side of the two sound-absorbing and noise-reducing tubes.

[0009] The inner wall of the noise-reducing outer casing is provided with a noise-reducing pad, and the top end of the dry-type power transformer body extends out of the noise-reducing outer casing.

[0010] Preferably, the front of the noise reduction outer casing is provided with a disassembly control door, which is sealed and closed on the front of the noise reduction outer casing.

[0011] Preferably, the sound-absorbing and noise-reducing tube includes a noise-reducing tube body and a noise-reducing cavity. The two noise-reducing tube bodies are respectively sleeved and fixed on opposite sides of two annular sound-absorbing ends. The noise-reducing tube body is connected to the interior of the noise-reducing outer box through the annular sound-absorbing ends. The noise-reducing cavity is evenly opened on the inner wall of the noise-reducing tube body.

[0012] Preferably, the cross-shaped sound-absorbing plate is arranged in a cross shape, and the side of the cross-shaped sound-absorbing plate is provided with a rectangular sound-absorbing plate.

[0013] Preferably, the rectangular sound-absorbing panel includes a rectangular panel body, a sound-absorbing cavity, and sound-absorbing holes. The rectangular panel body is installed and fixed on the side of the cross-shaped sound-absorbing panel. The sound-absorbing cavity is located inside the rectangular panel body, and the sound-absorbing holes are located on the surface of the rectangular panel body. The sound-absorbing cavity and the sound-absorbing holes are connected.

[0014] Preferably, the two sound-absorbing and noise-reducing outer cylinders are threadedly connected to opposite sides of the two sound-absorbing and noise-reducing tubes, and the interior of the sound-absorbing and noise-reducing outer cylinders is filled with noise-reducing sponge pads.

[0015] Preferably, the inner bottom wall of the noise reduction outer casing is provided with a support platform, and the main body of the dry-type power transformer is placed on top of the support platform.

[0016] Preferably, the noise-reducing pad is bonded and installed inside the noise-reducing outer casing, and each of the two annular sound-absorbing ends has a sound-absorbing flare on its opposite side, with both sound-absorbing flares located inside the noise-reducing outer casing.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a low-noise dry-type power transformer, which has the following beneficial effects:

[0019] 1. This low-noise dry-type power transformer features annular sound-absorbing ends on both sides of the noise-reducing outer casing, allowing for the installation of corresponding sound-absorbing and noise-reducing tubes. Noise is conducted through the annular sound-absorbing ends to the sound-absorbing and noise-reducing tubes for absorption and reduction. The tubes are equipped with cross-shaped and rectangular sound-absorbing plates, enhancing their sound absorption and noise reduction capabilities. The outer casing absorbs and reduces noise within the tubes, while the inner casing contains noise-reducing pads for further sound absorption and reduction. This combination of features results in excellent sound absorption and noise reduction performance.

[0020] 2. This low-noise dry-type power transformer, by installing the sound-absorbing and noise-reducing tube on the annular sound-absorbing end and the sound-absorbing and noise-reducing outer cylinder on the other end of the sound-absorbing and noise-reducing tube, is easy to disassemble and assemble, making the overall device simple and convenient to disassemble and assemble, and suitable for widespread use. Attached Figure Description

[0021] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a three-dimensional sectional view of the structure of this utility model.

[0023] Figure 3 This is a top-view perspective view of the structure of this utility model;

[0024] Figure 4 This is a top view sectional perspective of the structure of this utility model;

[0025] Figure 5 This is a side perspective three-dimensional schematic diagram of the connection structure between the rectangular plate body and the sound-absorbing hole of this utility model.

[0026] In the diagram: 1. Main body of dry-type power transformer; 2. Noise-reducing outer casing; 3. Annular sound-absorbing end; 4. Sound-absorbing and noise-reducing tube; 41. Main body of noise-reducing tube; 42. Noise-reducing cavity opening; 5. Cross-shaped sound-absorbing panel; 6. Sound-absorbing and noise-reducing outer cylinder; 7. Noise-reducing pad; 8. Disassembly and assembly control door; 9. Rectangular sound-absorbing panel; 91. Main body of rectangular panel; 92. Sound-absorbing inner cavity; 93. Sound-absorbing hole; 10. Noise-reducing sponge pad; 11. Support platform; 12. Sound-absorbing flare. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 A low-noise dry-type power transformer includes a dry-type power transformer body 1 and a noise-reducing outer casing 2, wherein the dry-type power transformer body 1 is fixedly installed inside the noise-reducing outer casing 2.

[0029] The noise reduction outer box 2 has annular sound-absorbing end 3 on both sides. The two annular sound-absorbing end 3 are fixedly fitted with sound-absorbing and noise-reducing tubes 4 on opposite sides. The two sound-absorbing and noise-reducing tubes 4 are equipped with multiple cross-shaped sound-absorbing plates 5 arranged at equal intervals inside. The two sound-absorbing and noise-reducing tubes 4 are fitted with sound-absorbing and noise-reducing outer cylinders 6 on opposite ends.

[0030] A noise-reducing pad 7 is installed on the inner wall of the noise-reducing outer casing 2, and the top end of the dry-type power transformer body 1 extends out of the noise-reducing outer casing 2.

[0031] The beneficial effects of this solution are as follows: By installing the dry-type power transformer body 1 inside the noise-reducing outer casing 2, sound insulation and noise reduction are achieved. Both sides of the noise-reducing outer casing 2 are equipped with annular sound-absorbing ends 3, which can be used to install corresponding sound-absorbing and noise-reducing tubes 4. Noise can be conducted through the annular sound-absorbing ends 3 to the sound-absorbing and noise-reducing tubes 4 for absorption and noise reduction. The sound-absorbing and noise-reducing tubes 4 are equipped with cross-shaped sound-absorbing plates 5 and rectangular sound-absorbing plates 9, enhancing their sound absorption and noise reduction capabilities. The sound-absorbing and noise-reducing outer cylinder 6 absorbs and reduces noise within the sound-absorbing and noise-reducing tubes 4. Noise-reducing pads 7 are installed inside the noise-reducing outer casing 2 to further reduce noise and absorb sound within the casing. The sound-absorbing and noise-reducing tubes 4 are fitted onto the annular sound-absorbing ends 3, and the sound-absorbing and noise-reducing outer cylinder 6 is mounted on the other end of the sound-absorbing and noise-reducing tubes 4. The entire system is easy to assemble and disassemble, facilitating disassembly and assembly. This results in excellent sound absorption and noise reduction capabilities and is simple and convenient to install and disassemble, making it suitable for widespread use.

[0032] Furthermore, the front of the noise reduction outer casing 2 is provided with a disassembly control door 8, which is sealed and closed on the front of the noise reduction outer casing 2.

[0033] By setting up the disassembly control door 8, the internal disassembly and assembly operations of the box can be carried out by opening and closing the disassembly control door 8. The overall disassembly and maintenance capabilities are good, and the disassembly control door 8 is sealed and closed, with good sound insulation, making it suitable for use.

[0034] Furthermore, the sound-absorbing and noise-reducing tube 4 includes a noise-reducing tube body 41 and a noise-reducing cavity 42. The two noise-reducing tube bodies 41 are respectively fitted and fixed on opposite sides of the two annular sound-absorbing ends 3. The noise-reducing tube body 41 is connected to the interior of the noise-reducing outer box 2 through the annular sound-absorbing ends 3. The noise-reducing cavity 42 is evenly opened on the inner wall of the noise-reducing tube body 41.

[0035] By setting the sound-absorbing and noise-reducing tube 4, which includes a noise-reducing tube body 41 and a noise-reducing cavity 42, the noise-reducing tube body 41 can support and carry the cross-shaped sound-absorbing plate 5 and the rectangular sound-absorbing plate 9, and the noise-reducing cavity 42 plays a role in sound absorption and noise reduction, so that the sound-absorbing and noise-reducing tube 4 has a good sound absorption and noise reduction capability while supporting the structure.

[0036] Furthermore, the cross-shaped sound-absorbing panel 5 is arranged in a cross shape, and a rectangular sound-absorbing panel 9 is provided on the side of the cross-shaped sound-absorbing panel 5.

[0037] By setting the cross-shaped sound-absorbing panel 5, it can stably support the rectangular sound-absorbing panel 9 and has a good sound absorption and noise reduction effect. The rectangular sound-absorbing panel 9 can assist in noise reduction and protection operations. The overall sound absorption and noise reduction effect is good, and the installation is stable and easy to use.

[0038] Furthermore, the rectangular sound-absorbing panel 9 includes a rectangular panel body 91, a sound-absorbing cavity 92, and a sound-absorbing hole 93. The rectangular panel body 91 is installed and fixed on the side of the cross-shaped sound-absorbing panel 5. The sound-absorbing cavity 92 is disposed inside the rectangular panel body 91, and the sound-absorbing hole 93 is disposed on the surface of the rectangular panel body 91. The sound-absorbing cavity 92 and the sound-absorbing hole 93 are connected.

[0039] By setting up a rectangular sound-absorbing panel 9, which includes a rectangular panel body 91, a sound-absorbing cavity 92, and sound-absorbing holes 93, the rectangular panel body 91 plays a supporting role. Noise can be absorbed and guided through the sound-absorbing holes 93 to the sound-absorbing cavity 92, where it is absorbed and reduced. This makes the rectangular sound-absorbing panel 9 have excellent overall sound absorption capacity and strong noise reduction capability.

[0040] Furthermore, the two sound-absorbing and noise-reducing outer cylinders 6 are respectively threaded to the opposite sides of the two sound-absorbing and noise-reducing tubes 4, and the interior of the sound-absorbing and noise-reducing outer cylinders 6 is filled with noise-reducing sponge pads 10.

[0041] By setting the sound-absorbing and noise-reducing outer cylinder 6 to be threadedly connected to the sound-absorbing and noise-reducing tube 4, the overall assembly and disassembly of the sound-absorbing and noise-reducing outer cylinder 6 is relatively simple and convenient, making it suitable for use. In addition, the setting of the noise-reducing sponge pad 10 improves the sound absorption capacity, isolates the transmission of noise, and has a good overall noise reduction effect.

[0042] Furthermore, the inner bottom wall of the noise reduction outer casing 2 is provided with a support platform 11, on which the dry-type power transformer body 1 is supported and placed on top of the support platform 11.

[0043] By setting up the support platform 11, the main body 1 of the dry-type power transformer can be supported and isolated, so that the noise generated by the operation of the main body 1 of the dry-type power transformer can be supported and isolated by the support platform 11, further reducing the propagation of noise and providing good low noise capability.

[0044] Furthermore, the noise-reducing pad 7 is glued and installed inside the noise-reducing outer box 2, and the two annular sound-absorbing ends 3 are provided with sound-absorbing flares 12 on opposite sides, and the two sound-absorbing flares 12 are both located inside the noise-reducing outer box 2.

[0045] The noise-reducing pad 7 is glued and installed inside the noise-reducing outer box 2, which is convenient for installation. The sound-absorbing vent 12 allows the noise of the noise-reducing outer box 2 to be guided to the inside of the sound-absorbing and noise-reducing tube 4, resulting in good sound absorption and noise reduction effect.

[0046] It should be noted that all the devices in this application are common devices on the market, and can be selected according to the needs of specific use. The circuit connection relationship of each device is a simple series and parallel connection circuit. There is no innovation in the circuit connection. Those skilled in the art can easily implement it. It belongs to the prior art and will not be described in detail.

[0047] Working principle: By installing the dry-type power transformer body 1 inside the noise reduction outer box 2, it plays a role in sound insulation and noise reduction. The top of the dry-type power transformer body 1 extends out of the noise reduction outer box 2, which can be used stably.

[0048] Both sides of the noise reduction outer box 2 are provided with annular sound-absorbing end heads 3, which can be correspondingly installed with sound-absorbing and noise-reducing tubes 4. The noise generated by the main body 1 of the dry-type power transformer during operation can be conducted through the annular sound-absorbing end heads 3 to the sound-absorbing and noise-reducing tubes 4 for sound absorption and noise reduction. Cross sound-absorbing plates 5 are arranged at equal intervals inside the sound-absorbing and noise-reducing tubes 4. The cross sound-absorbing plates 5 perform auxiliary sound absorption. The rectangular sound-absorbing plates 9 on the cross sound-absorbing plates 5 further enhance the sound absorption and noise reduction capability. Finally, the sound-absorbing and noise-reducing outer cylinder 6 reduces and absorbs the noise inside the sound-absorbing and noise-reducing tubes 4, further enhancing the noise reduction effect. The noise reduction outer box 2 is provided with noise-reducing pads 7 inside the box for noise reduction and sound absorption inside the box.

[0049] The sound-absorbing and noise-reducing tube 4 is sleeved and installed on the annular sound-absorbing end 3, and the sound-absorbing and noise-reducing outer cylinder 6 is mounted on the other end of the sound-absorbing and noise-reducing tube 4. The whole assembly and disassembly are convenient and easy to carry out, which makes the sound-absorbing and noise-reducing capacity of the device excellent. The overall assembly and disassembly are simple and convenient, making it suitable for widespread use. It solves the problems that the existing power transformers have general noise reduction capacity, relatively insufficient environmental protection capacity, and relatively inconvenient installation and disassembly of noise reduction protection structures.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-noise dry-type power transformer, comprising a dry-type power transformer body (1) and a noise-reducing outer casing (2), characterized in that: The main body (1) of the dry-type power transformer is fixedly installed inside the noise reduction outer casing (2); The noise reduction outer box (2) is provided with annular sound-absorbing end heads (3) on both sides. The two annular sound-absorbing end heads (3) are each fitted with a sound-absorbing and noise-reducing tube (4) on the opposite side. The two sound-absorbing and noise-reducing tubes (4) are each provided with multiple cross-shaped sound-absorbing plates (5) arranged at equal distances inside. The two sound-absorbing and noise-reducing tubes (4) are each fitted with a sound-absorbing and noise-reducing outer cylinder (6) on the opposite side. The inner wall of the noise-reducing outer casing (2) is provided with a noise-reducing pad (7), and the top end of the dry-type power transformer body (1) extends out of the noise-reducing outer casing (2).

2. A low-noise dry-type power transformer according to claim 1, characterized in that: The front of the noise reduction outer casing (2) is provided with a disassembly control door (8), which is sealed and closed on the front of the noise reduction outer casing (2).

3. A low-noise dry-type power transformer according to claim 1, characterized in that: The sound-absorbing and noise-reducing tube (4) includes a noise-reducing tube body (41) and a noise-reducing cavity (42). The two noise-reducing tube bodies (41) are respectively fitted and fixed on opposite sides of the two annular sound-absorbing ends (3). The noise-reducing tube body (41) is connected to the interior of the noise-reducing outer box (2) through the annular sound-absorbing ends (3). The noise-reducing cavity (42) is evenly opened on the inner wall of the noise-reducing tube body (41).

4. A low-noise dry-type power transformer according to claim 1, characterized in that: The cross-shaped sound-absorbing plate (5) is arranged in a cross shape, and a rectangular sound-absorbing plate (9) is provided on the side of the cross-shaped sound-absorbing plate (5).

5. A low-noise dry-type power transformer according to claim 4, characterized in that: The rectangular sound-absorbing panel (9) includes a rectangular panel body (91), a sound-absorbing cavity (92), and a sound-absorbing hole (93). The rectangular panel body (91) is installed and fixed on the side of the cross-shaped sound-absorbing panel (5). The sound-absorbing cavity (92) is located inside the rectangular panel body (91). The sound-absorbing hole (93) is located on the surface of the rectangular panel body (91). The sound-absorbing cavity (92) and the sound-absorbing hole (93) are connected.

6. A low-noise dry-type power transformer according to claim 1, characterized in that: The two sound-absorbing and noise-reducing outer cylinders (6) are respectively threaded to the opposite side of the two sound-absorbing and noise-reducing tubes (4), and the interior of the sound-absorbing and noise-reducing outer cylinders (6) is filled with noise-reducing sponge pads (10).

7. A low-noise dry-type power transformer according to claim 1, characterized in that: The inner bottom wall of the noise reduction outer casing (2) is provided with a support platform (11), and the dry-type power transformer body (1) is placed on the top of the support platform (11).

8. A low-noise dry-type power transformer according to claim 1, characterized in that: The noise-reducing pad (7) is bonded and installed inside the noise-reducing outer box (2). The two annular sound-absorbing ends (3) are provided with sound-absorbing flares (12) on opposite sides. The two sound-absorbing flares (12) are located inside the noise-reducing outer box (2).

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