A new type of dry-type transformer with noise reduction

Abstract

The utility model discloses a novel dry-type transformer with noise reduction, including a noise reduction box, the shell of the noise reduction box is provided with a cavity, the interior of the cavity is fixedly connected with a soundproof liner, the outer side of the soundproof liner is fixedly connected with a reinforcement strip, and the other side of the reinforcement strip is fixedly connected with a sound-absorbing liner. The utility model can perform sound insulation and then sound absorption on the noise generated by the transformer body through the cooperation of the noise reduction box, the cavity, the soundproof liner, the reinforcement strip, the sound-absorbing liner and the sealing door, thereby greatly improving the noise reduction effect, and then utilize the cooperation of the connecting groove, the shock-absorbing spring, the connecting strip, the damping telescopic rod and the mounting seat to perform shock-absorbing treatment on the vibration generated during the operation of the transformer body, thereby further weakening the noise generated by the transformer body and further improving the silencing and noise reduction performance of the transformer body.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type transformers, in particular to a novel noise-reducing dry-type transformer. Background Art

[0002] A transformer is an electrical device that uses electromagnetic induction to change AC voltage. Its main functions include voltage and current conversion, impedance change, etc. Transformers can be divided into several types according to their different uses. Dry-type transformers are one of them. They are a transformer with good insulation, good heat resistance, high mechanical strength and high efficiency. Dry-type transformers not only have low production costs but also long service life.

[0003] After searching, a new type of dry-type transformer with noise reduction is disclosed in Chinese patent application No. 202322030056.9. The patent discloses a new type of dry-type transformer with noise reduction, including a base transformer body, a nameplate is installed on the top of the transformer body, and a sound insulation cavity is provided inside the sound insulation cotton. The dry-type transformer includes a nameplate shell and corresponding components inside the nameplate through the nameplate components. The components inside the nameplate will generate certain noise during operation. By arranging sound insulation cotton inside the nameplate shell, and filling the sound insulation cavity inside the sound insulation cotton, the sound insulation and noise reduction effect of the nameplate is improved, so that the sound insulation and noise reduction effect of the transformer is greatly improved, thereby improving the environmental protection of the dry-type transformer. By arranging components such as dustproof nets and mounting seats, the heat dissipation fans at both ends of the bottom of the dry-type transformer during use will perform corresponding heat dissipation, so that when the heat dissipation fan is not in use, the external dust not only enters the interior of the dry-type transformer through the heat dissipation fan to cause damage, but also improves the protection of the dry-type transformer.

[0004] Although the above-mentioned patent improves the sound insulation and noise reduction effect of the nameplate by arranging sound insulation cotton inside the nameplate shell and filling the interior of the sound insulation cotton with a sound insulation cavity, which greatly improves the sound insulation and noise reduction effect of the transformer, thereby improving the environmental protection of the dry-type transformer. However, during the actual operation of the dry-type transformer, its alternating magnetic field produces a periodic alternating force on the iron core and the coil, causing it to vibrate the installed base plate. In addition, the vibrating iron core coil radiates noise outward. Under the action of the vortex flow inside the wires and the iron core of the energized dry-type transformer, the radiated noise is far more complex and more disturbing than the noise generated by a single frequency vibration. However, this patent only reduces the noise of the components inside the nameplate through the sound insulation cavity and sound insulation cotton. This noise reduction method has a very limited effect on this complex noise. At the same time, the heat dissipation fan will also produce certain noise pollution during operation, resulting in the transformer body The noise reduction effect is not obvious, and the noise still affects the life and work of people around.

[0005] Therefore, it is necessary to transform the noise-reducing new dry-type transformer in the above-mentioned patent to effectively prevent the noise reduction of the components inside the nameplate only through the sound insulation cavity and sound insulation cotton. This noise reduction method has a very limited effect on such complex noise. At the same time, the cooling fan will also generate certain noise pollution during operation, which will lead to the problem that the noise reduction effect of the transformer body is not obvious. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a new type of dry-type transformer with noise reduction, which solves the problem that the noise reduction structure of the dry-type transformer in the prior art only reduces the noise of the components inside the nameplate through the sound insulation cavity and sound insulation cotton. This noise reduction method has a very limited effect on such complex noise. At the same time, the heat dissipation fan will also generate certain noise pollution during operation, which leads to the problem that the noise reduction effect of the transformer main body is not obvious.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel dry-type transformer with noise reduction, comprising a noise reduction box, an outer shell of the noise reduction box is provided with a cavity, a sound insulation liner is fixedly connected to the inside of the cavity, a reinforcement strip is fixedly connected to the outside of the sound insulation liner, a sound absorbing liner is fixedly connected to the other side of the reinforcement strip, and the sound absorbing liner is fixedly connected to the cavity, a connecting groove is symmetrically provided at the bottom of the inner wall of the noise reduction box, a plurality of shock absorbing springs are fixedly connected to the top of the connecting groove, and the plurality of shock absorbing springs are evenly arranged, a connecting strip is fixedly connected to the top of the shock absorbing spring, and the connecting strip is slidably connected to the connecting groove, a damping telescopic rod is fixedly connected to the inside of the shock absorbing spring, and two ends of the damping telescopic rod are respectively fixedly connected to the connecting groove and the connecting strip, a mounting seat is fixedly connected to the top of the connecting strip, a transformer body is fixedly connected to the top of the mounting seat, and the transformer body is located inside the noise reduction box, and a sealing door is symmetrically hinged on the surface of the noise reduction box through hinges.

[0008] As a preferred embodiment of the utility model, a noise reduction chamber is provided inside the sealed door, and a sound insulation board and a sound absorbing board are fixedly connected to the inside of the noise reduction chamber in sequence from the inside to the outside.

[0009] As a preferred embodiment of the utility model, a heat dissipation fan is symmetrically fixedly connected to the top of the mounting seat, and the heat dissipation fan is used in conjunction with the transformer body, and a dustproof net is fixedly connected to the surface of the heat dissipation fan.

[0010] As a preferred embodiment of the utility model, a plurality of V-shaped heat dissipation holes are provided on the rear side of the noise reduction box and the surface of the sealing door, and the plurality of V-shaped heat dissipation holes are evenly arranged and are all located on the outside of the heat dissipation fan.

[0011] As a preferred embodiment of the present invention, the number of the reinforcement strips is several, and the several reinforcement strips are arranged in a staggered, inclined and uniform manner.

[0012] As a preferred embodiment of the present invention, a support column is fixedly connected to the top of the noise reduction box, and a sunshade is fixedly connected to the top of the support column.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model can soundproof and then absorb the noise generated by the transformer body through the cooperation of the noise reduction box, cavity, sound insulation liner, reinforcement strip, sound absorbing liner and sealing door, thereby greatly improving the noise reduction effect. Then, by using the cooperation of the connecting groove, shock absorbing spring, connecting strip, damping telescopic rod and mounting seat, the vibration generated during the operation of the transformer body can be damped, thereby further weakening the noise generated by the transformer body and further improving the silencing and noise reduction performance of the transformer body.

[0015] 2. The utility model can make the sealed door have the function of first sound insulation and then sound absorption through the arrangement of the noise reduction chamber, the sound insulation board and the sound absorption board, thereby greatly reducing the penetration of noise and improving the noise isolation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a rear perspective schematic diagram of the noise reduction box of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of the transformer body of the utility model;

[0019] Figure 4 It is a partial cross-sectional right view schematic diagram of the sealing door of the utility model;

[0020] Figure 5 For this utility model Figure 1 The enlarged schematic diagram at A in the middle;

[0021] Figure 6 For this utility model Figure 1 Enlarged schematic diagram of point B in the middle.

[0022] In the figure: 1. Noise reduction box; 2. Cavity; 3. Sound insulation liner; 4. Reinforcement strip; 5. Sound absorbing liner; 6. Connection groove; 7. Shock-absorbing spring; 8. Connection strip; 9. Damping telescopic rod; 10. Mounting seat; 11. Transformer body; 12. Sealed door; 13. Noise reduction cavity; 14. Sound insulation board; 15. Sound absorbing board; 16. Cooling fan; 17. Dustproof net; 18. V-shaped heat dissipation hole; 19. Support column; 20. Awning. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figures 1 to 6 As shown, the utility model provides a novel dry-type transformer with noise reduction, including a noise reduction box 1, the shell of the noise reduction box 1 is provided with a cavity 2, the interior of the cavity 2 is fixedly connected with a sound insulation liner 3, the outer side of the sound insulation liner 3 is fixedly connected with a reinforcement strip 4, the other side of the reinforcement strip 4 is fixedly connected with a sound absorption liner 5, and the sound absorption liner 5 is fixedly connected to the cavity 2, the bottom of the inner wall of the noise reduction box 1 is symmetrically provided with connecting grooves 6, the top of the connecting grooves 6 is fixedly connected with a plurality of shock absorbing springs 7, and the plurality of shock absorbing springs 7 are fixedly connected to the plurality of shock absorbing springs 7. They are evenly arranged, the top of the shock-absorbing spring 7 is fixedly connected with a connecting strip 8, and the connecting strip 8 is slidably connected to the connecting groove 6, the inside of the shock-absorbing spring 7 is fixedly connected with a damping telescopic rod 9, and the two ends of the damping telescopic rod 9 are respectively fixedly connected to the connecting groove 6 and the connecting strip 8, the top of the connecting strip 8 is fixedly connected with a mounting seat 10, the top of the mounting seat 10 is fixedly connected with a transformer body 11, and the transformer body 11 is located inside the noise reduction box 1, and the surface of the noise reduction box 1 is symmetrically hinged with a sealing door 12 through a hinge.

[0025] refer to Figure 4 A noise reduction chamber 13 is provided inside the sealed door 12, and a sound insulation board 14 and a sound absorbing board 15 are fixedly connected to the inside of the noise reduction chamber 13 in sequence from the inside to the outside.

[0026] As a technical optimization scheme of the utility model, by setting the noise reduction chamber 13, the sound insulation board 14 and the sound absorbing board 15, the sealed door 12 can have the function of first sound insulation and then sound absorption, thereby greatly reducing the penetration of noise and improving the noise isolation effect.

[0027] refer to Figure 1 and Figure 3 A heat dissipation fan 16 is symmetrically fixedly connected to the top of the mounting base 10 , and the heat dissipation fan 16 is used in conjunction with the transformer body 11 , and a dustproof net 17 is fixedly connected to the surface of the heat dissipation fan 16 .

[0028] As a technical optimization solution of the utility model, the heat dissipation fan 16 and the dustproof net 17 are provided to dissipate heat for the transformer body 11 accordingly, thereby preventing the transformer body 11 from being overheated. The dustproof net 17 is provided to achieve a dustproof effect, thereby preventing dust from entering the interior of the transformer body 11.

[0029] refer to Figure 1, Figure 2 and Figure 4 A plurality of V-shaped heat dissipation holes 18 are provided on the rear side of the noise reduction box 1 and the surface of the sealing door 12 , and the plurality of V-shaped heat dissipation holes 18 are evenly arranged and are all located on the outside of the heat dissipation fan 16 .

[0030] As a technical optimization scheme of the utility model, the V-shaped heat dissipation hole 18 is provided to facilitate the circulation between the noise reduction box 1 and the outside air, thereby improving the heat dissipation effect of the transformer body 11, and utilizing the shape of the V-shaped heat dissipation hole 18, a small amount of noise propagating through the V-shaped heat dissipation hole 18 can be refracted, thereby extending the propagation path of the noise, thereby achieving the effect of noise reduction.

[0031] refer to Figure 1 and Figure 5 The number of reinforcing strips 4 is several, and the several reinforcing strips 4 are arranged evenly and tilted in a staggered manner.

[0032] As a technical optimization solution of the present invention, the arrangement of a plurality of reinforcing strips 4 in a staggered, inclined and uniform manner can not only assist in the refraction of noise waves to extend the propagation path of the noise, but also enhance the reinforcement effect of the reinforcing strips 4.

[0033] refer to Figure 1 and Figure 2 A support column 19 is fixedly connected to the top of the noise reduction box 1, and a sunshade 20 is fixedly connected to the top of the support column 19.

[0034] As a technical optimization solution of the utility model, by setting the support column 19 and the awning 20, direct sunlight can be reduced in summer, the temperature in the noise reduction box 1 can be lowered, and the erosion of rainwater can also be reduced.

[0035] The working principle and use process of the utility model: when the noise reduction type new dry-type transformer is used, the transformer body 11 can generate vibration when it is running. At this time, the transformer body 11 presses down the connecting strip 8, thereby squeezing the shock-absorbing spring 7, and the shock-absorbing spring 7 uses the elastic deformation of the spring to absorb the impact force and vibration force in the mechanical movement, and uses the damping telescopic rod 9 to convert the elastic deformation of the shock-absorbing spring 7 into mechanical energy, so as to achieve the vibration buffering and shock absorption when the transformer body 11 is running, so as to achieve a certain noise reduction effect, and then the noise generated by the transformer body 11 itself during operation can be initially reduced by the outer shell of the noise reduction box 1 and the sealing door 12, and then the sound insulation liner 3 and the sound insulation board 14 can be used to block and soundproof the noise. At this time, a number of staggered and inclined reinforcing strips 4 can be used to refract the noise penetrating the sound insulation liner 3, so as to achieve the effect of extending the noise propagation path, thereby improving the sound insulation effect of the noise, and then through the setting of the sound absorbing liner 5 and the sound absorbing board 15, the noise after sound insulation can be sound-absorbed, thereby further improving the noise reduction effect.

[0036] 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.

[0037] Although 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 novel noise reduction dry-type transformer, comprising a noise reduction box (1), characterized in that: The outer shell of the noise reduction box (1) is provided with a cavity (2), the interior of the cavity (2) is fixedly connected with a soundproof liner (3), the outer side of the soundproof liner (3) is fixedly connected with a reinforcement strip (4), the other side of the reinforcement strip (4) is fixedly connected with a sound-absorbing liner (5), and the sound-absorbing liner (5) is fixedly connected to the cavity (2), the bottom of the inner wall of the noise reduction box (1) is symmetrically provided with connection grooves (6), the top of the connection grooves (6) is fixedly connected with a plurality of shock-absorbing springs (7), and the plurality of shock-absorbing springs (7) are evenly arranged, and the top of the shock-absorbing springs (7) is fixedly connected with the sound-absorbing springs (5). The connecting strip (8) is fixedly connected to the connecting groove (6), and the connecting strip (8) is slidably connected to the connecting groove (6); the damping spring (7) is fixedly connected to a damping telescopic rod (9) inside, and the two ends of the damping telescopic rod (9) are respectively fixedly connected to the connecting groove (6) and the connecting strip (8); the top of the connecting strip (8) is fixedly connected to a mounting seat (10); the top of the mounting seat (10) is fixedly connected to a transformer body (11), and the transformer body (11) is located inside the noise reduction box (1); and a sealing door (12) is symmetrically hinged on the surface of the noise reduction box (1) through hinges.

2. A novel noise reduction dry-type transformer according to claim 1, characterized in that: A noise reduction chamber (13) is provided inside the sealed door (12), and a sound insulation board (14) and a sound absorption board (15) are fixedly connected in sequence inside the noise reduction chamber (13) from inside to outside.

3. A noise reduction novel dry-type transformer according to claim 1, characterized in that: A heat dissipation fan (16) is symmetrically fixedly connected to the top of the mounting seat (10), and the heat dissipation fan (16) is used in conjunction with the transformer body (11), and a dustproof net (17) is fixedly connected to the surface of the heat dissipation fan (16).

4. A noise reduction novel dry-type transformer according to claim 3, characterized in that: A plurality of V-shaped heat dissipation holes (18) are provided on the rear side of the noise reduction box (1) and the surface of the sealing door (12), and the plurality of V-shaped heat dissipation holes (18) are evenly arranged and are all located outside the heat dissipation fan (16).

5. The novel noise reduction dry-type transformer according to claim 1 is characterized in that: The number of the reinforcing strips (4) is several, and the several reinforcing strips (4) are arranged evenly and tilted in a staggered manner.

6. The novel noise reduction dry-type transformer according to claim 1 is characterized in that: The top of the noise reduction box (1) is fixedly connected to a support column (19), and the top of the support column (19) is fixedly connected to a sunshade (20).

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