Noise reduction structure for converter transformer

Abstract

The utility model relates to the technical field of converter transformers, and discloses a noise reduction structure for a converter transformer, which comprises a mounting seat and a converter transformer body, a noise reduction box is fixedly mounted on the mounting seat, a box cover is mounted at the top of the noise reduction box, the converter transformer body is fixedly mounted in the noise reduction box, and the noise reduction box is fixedly mounted in the converter transformer body. A positioning seat is fixedly mounted on the inner bottom wall of the noise reduction box, a mounting box is inserted into the positioning seat, and sound absorption cotton is mounted in the mounting box. According to the noise reduction structure for the converter transformer, the mounting box and the sound-absorbing cotton located in the mounting box can be conveniently disassembled and mounted in a manner that the positioning seat is clamped with the mounting box, and the sound-absorbing cotton can be conveniently replaced in a manner that the sound-absorbing cotton is clamped in the mounting box; therefore, the noise reduction effect of the converter transformer body can be effectively improved, and heat dissipation holes are formed in the outer wall of the noise reduction box, so that the converter transformer body achieves the heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of converter transformers, in particular to a noise reduction structure for a converter transformer. Background Technique

[0002] The DC transmission project is to reduce the line loss of electric energy during the transmission process. At the beginning of the transmission line, the AC power is converted into DC power through a converter station and transmitted. After reaching the destination, the DC power is converted back into AC power through the converter station. Although the DC transmission project realizes the optimal allocation of power resources, its noise pollution has become a thorny problem that interferes with people's normal work and life. The converter transformer is the largest noise source among the single equipment in the converter station.

[0003] When a converter transformer fails and needs to be replaced, the noise reduction structure must be completely disassembled. The disassembly and installation workload is large and the required time is long, which is difficult to meet the needs of quickly troubleshooting and replacing the converter transformer. At the same time, when the noise reduction mechanism is used for a long time, dust and particles will enter the inside of the noise reduction mechanism, which will affect the noise reduction effect of the noise reduction mechanism. Therefore, a noise reduction structure for a converter transformer is proposed. Content of the Utility Model

[0004] Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a noise reduction structure for a converter transformer, which has the advantages of good noise reduction effect, easy disassembly and replacement of the noise reduction structure, etc., and solves the problems of good noise reduction effect and easy disassembly and installation of the noise reduction structure.

[0006] (II) Technical Solution

[0007] To achieve the above purposes of good noise reduction effect and easy disassembly and replacement of the noise reduction structure, the utility model provides the following technical solution:

[0008] A noise reduction structure for a converter transformer includes a mounting base and a converter transformer body. A noise reduction box is fixedly installed on the mounting base, and a box cover is installed on the top of the noise reduction box. The converter transformer body is fixedly installed inside the noise reduction box. A positioning seat is fixedly installed on the inner bottom wall of the noise reduction box, an installation box is inserted on the positioning seat, a sound-absorbing cotton is installed inside the installation box, and no less than three through holes are formed between the side walls of the installation box close to the sound-absorbing cotton.

[0009] As a preferred technical solution of the utility model, a positioning card slot is formed on the top of the positioning seat, and a positioning card strip is installed at the bottom of the installation box, and the positioning card strip is clamped with the positioning card slot.

[0010] As a preferred technical solution of the utility model, a counterweight strip is installed at the bottom of the positioning card strip.

[0011] As a preferred technical solution of the present utility model, a rubber pad is installed on the inner bottom wall of the positioning card slot.

[0012] As a preferred technical solution of the present utility model, a positioning groove is vertically opened on the inner wall of the noise reduction box, and a positioning block is installed on the side wall of the installation box, wherein the positioning block is slidably connected with the positioning groove.

[0013] As a preferred technical solution of the present utility model, a cavity is opened inside the installation box, and the cavity is open between the front wall of the installation box.

[0014] As a preferred technical solution of the present utility model, heat dissipation holes are opened on the outer wall of the noise reduction box.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present utility model provides a noise reduction structure for a converter transformer, which has the following beneficial effects:

[0017] For the noise reduction structure of the converter transformer, by means of the clamping connection between the positioning seat and the installation box, the installation box and the sound-absorbing cotton located inside the installation box can be easily disassembled and installed. By clamping the sound-absorbing cotton inside the installation box, the sound-absorbing cotton can be easily replaced, thereby effectively improving the noise reduction effect of the converter transformer body. By opening heat dissipation holes on the outer wall of the noise reduction box, the converter transformer body can achieve the effect of heat dissipation. Description of the drawings

[0018] Figure 1 It is a front view schematic diagram of the structure of the present utility model;

[0019] Figure 2 It is a front view sectional schematic diagram of the structure of the present utility model;

[0020] Figure 3 It is a top view sectional schematic diagram of the structure of the present utility model;

[0021] Figure 4 It is a side view sectional schematic diagram of the connection structure between the installation box and the sound-absorbing cotton of the structure of the present utility model;

[0022] Figure 5 It is the structure of the present utility model Figure 2 The partial enlarged schematic diagram of the part A shown in the figure.

[0023] In the figure: 1, mounting base; 2, noise reduction box; 3, box cover; 4, heat dissipation holes; 5, mounting box; 6, sound-absorbing cotton; 7, converter transformer body; 8, positioning seat; 9, positioning groove; 10, positioning block; 11, cavity; 12, positioning card strip; 13, counterweight strip; 14, positioning card slot; 15, rubber pad; 16, through hole. Detailed implementation manners

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection, or an indirect connection through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] Please refer to Figures 1 - 5, A noise reduction structure for a converter transformer, comprising a mounting base 1 and a converter transformer body 7. A noise reduction box 2 is fixedly installed on the mounting base 1, and a box cover 3 is installed on the top of the noise reduction box 2. The converter transformer body 7 is fixedly installed inside the noise reduction box 2. Through the noise reduction box 2 and the box cover 3, the noise emitted by the converter transformer body 7 can be blocked, avoiding the spread of noise. A positioning seat 8 is fixedly installed on the inner bottom wall of the noise reduction box 2, and a mounting box 5 is inserted into the positioning seat 8. Sound-absorbing cotton 6 is installed inside the mounting box 5. Among them, a positioning card slot 14 is opened at the top of the positioning seat 8, and a positioning card strip 12 is installed at the bottom of the mounting box 5. The positioning card strip 12 is clamped with the positioning card slot 14, so that the mounting box 5 can be clamped inside the noise reduction box 2 and can also be pulled out upwards for disassembly. By installing the sound-absorbing cotton 6 inside the mounting box 5, the noise emitted by the converter transformer body 7 can be absorbed, thus achieving the effect of noise reduction. There are no less than three through holes 16 opened between the side walls of the mounting box 5 close to the sound-absorbing cotton 6. Through the through holes 16, the noise emitted by the converter transformer body 7 can enter the inside of the mounting box 5 and be absorbed by the sound-absorbing cotton 6.

[0028] In this embodiment, a counterweight bar 13 is installed at the bottom of the positioning card strip 12. Due to the weight of the counterweight bar 13 itself, the positioning card strip 12 and the mounting box 5 can be stably inserted into the positioning seat 8.

[0029] In this embodiment, a rubber pad 15 is installed on the inner bottom wall of the positioning card slot 14. Through the rubber pad 15, the friction between the counterweight bar 13 and the positioning seat 8 can be effectively increased, so that the clamping relationship between the positioning card strip 12 and the positioning seat 8 is more stable.

[0030] In this embodiment, a positioning groove 9 is vertically opened on the inner wall of the noise reduction box 2, and a positioning block 10 is installed on the side wall of the mounting box 5. The positioning block 10 is slidably connected with the positioning groove 9. By the way of the slidable connection between the positioning block 10 and the positioning groove 9, when the mounting box 5 is inserted into the positioning seat 8, it is more stable, playing a further role in limiting the mounting box 5 and the sound-absorbing cotton 6.

[0031] In this embodiment, a cavity 11 is opened inside the mounting box 5, and the cavity 11 is open between the front wall of the mounting box 5. Thus, the sound-absorbing cotton 6 can be installed and disassembled through the open part of the mounting box 5. At the same time, when the mounting box 5 is completely installed inside the noise reduction box 2, the open part of the mounting box 5 can be closed through the front wall of the noise reduction box 2, so as to achieve the effect of limiting the sound-absorbing cotton 6 inside the mounting box 5, and further make the sound-absorbing cotton 6 stably installed inside the mounting box 5. When it is necessary to replace or maintain the sound-absorbing cotton 6, only need to pull out the mounting box 5 from the inside of the noise reduction box 2, and then the sound-absorbing cotton 6 can be pulled out from the open part of the mounting box 5 for replacement and maintenance, and the operation is simple and convenient.

[0032] In this embodiment, heat dissipation holes 4 are provided on the outer wall of the noise reduction box 2. Through the heat dissipation holes 4, the air inside and outside the noise reduction box 2 can circulate. Furthermore, the hot air inside the noise reduction box 2 can exchange with the cold air outside the noise reduction box 2, thereby achieving the effect of heat dissipation.

[0033] Working principle: When it is necessary to disassemble and replace the sound-absorbing cotton 6, open the box cover 3, then pull out the installation box 5 upward along the direction in which the positioning groove 9 is opened, and then pull out the sound-absorbing cotton 6 from the open end of the installation box 5. When it is necessary to install the sound-absorbing cotton 6, install the new or maintained sound-absorbing cotton 6 from the open end of the installation box 5 into the interior of the installation box 5, then align the positioning block 10 with the top of the positioning groove 9, and then move the installation box 5 downward along the direction in which the positioning groove 9 is opened until the positioning card strip 12 and the weight strip 13 at the bottom of the installation box 5 are inserted into the positioning seat 8, so as to achieve the effect of fixing the installation box 5 and the sound-absorbing cotton 6. Thus, while facilitating the disassembly and installation of the sound-absorbing cotton 6, the noise reduction effect of the converter transformer body 7 is also improved.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise reduction structure for a converter transformer, comprising a mounting base (1) and a converter transformer body (7), characterized in that: A noise reduction box (2) is fixedly mounted on the mounting seat (1), a box cover (3) is mounted on the top of the noise reduction box (2), the converter transformer body (7) is fixedly mounted inside the noise reduction box (2), a positioning seat (8) is fixedly mounted on the inner bottom wall of the noise reduction box (2), a mounting box (5) is plugged into the positioning seat (8), sound-absorbing cotton (6) is mounted inside the mounting box (5), and no less than three through holes (16) are provided between the side walls of the mounting box (5) and the sound-absorbing cotton (6) adjacent to each other.

2. The noise reduction structure for a converter transformer according to claim 1, characterized in that: A positioning slot (14) is provided on the top of the positioning seat (8), and a positioning strip (12) is installed on the bottom of the installation box (5), wherein the positioning strip (12) is engaged with the positioning slot (14).

3. The noise reduction structure for a converter transformer according to claim 2, characterized in that: A counterweight bar (13) is installed at the bottom of the positioning clamping bar (12).

4. The noise reduction structure for a converter transformer according to claim 2, characterized in that: A rubber pad (15) is installed on the inner bottom wall of the positioning slot (14).

5. The noise reduction structure for a converter transformer according to claim 1, characterized in that: A positioning groove (9) is vertically provided on the inner wall of the noise reduction box (2), and a positioning block (10) is installed on the side wall of the installation box (5), wherein the positioning block (10) is slidably connected to the positioning groove (9).

6. The noise reduction structure for a converter transformer according to claim 1, characterized in that: A cavity (11) is provided inside the installation box (5), and an opening is formed between the cavity (11) and the front wall of the installation box (5).

7. The noise reduction structure for a converter transformer according to claim 1, characterized in that: Heat dissipation holes (4) are provided on the outer wall of the noise reduction box (2).

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