CN211980339U

CN211980339U - Noise reduction structure for dry-type transformer

Info

Publication number: CN211980339U
Application number: CN202020820855.XU
Authority: CN
Inventors: 张远平; 唐飞鹏
Original assignee: Shenzhen Shente Power Transformer Equipment Co ltd
Current assignee: Shenzhen Shente Power Transformer Equipment Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-11-20
Anticipated expiration: 2030-05-15

Abstract

The utility model relates to a structure of making an uproar falls for dry-type transformer, which comprises an outer shell, the mounting groove has been seted up to the inside of shell, the internally mounted of mounting groove has the mounting bracket, the shell is close to four sides of bottom of mounting bracket and has seted up the constant head tank, wherein, one side that the mounting bracket is close to the constant head tank is fixed with the locating lever, first bolt groove has been seted up to the both sides of mounting bracket, one side that the shell is close to first bolt groove is run through and is had first connecting groove, first T shape bolt has been run through to the inside of first connecting groove, the inner wall of mounting groove is fixed with inhales the sound cotton, the iron. Above-mentioned a structure of making an uproar falls for dry-type transformer has through setting up inhale the sound cotton, and during the transformer used, the iron core vibrations lead to and the mounting bracket between produce the noise, and the noise that produces is propagated in the air, inhales the sound cotton when the sound is cotton at the sound wave process, absorbs the sound wave through inhaling the sound cotton, is convenient for fall the noise advantage of making an uproar to the noise that the transformer produced.

Description

Noise reduction structure for dry-type transformer

Technical Field

The utility model relates to a dry-type transformer, especially a structure of making an uproar falls for dry-type transformer.

Background

The dry-type transformer is widely used in places such as local lighting, high-rise buildings, airports, wharf CNC mechanical equipment and the like, and simply, the dry-type transformer refers to a transformer with an iron core and a winding which are not immersed in insulating oil.

Although the types and the number of the noise reduction structures of the existing dry-type transformer are very large, the noise reduction structures of the existing dry-type transformer still have certain problems, and certain inconvenience is brought to the use of the noise reduction structures of the dry-type transformer.

When the noise reduction structure of the existing dry-type transformer is used, the connection between the iron core and the connecting piece is generally damped, noise is reduced from the source, but the noise is sound wave, and resonance can be formed if the natural frequencies of the two substances are the same, so if the natural frequencies of the transformer body, accessories and parts of the transformer body are close to or consistent with those of the surrounding environment, buildings and the like, the noise of the transformer can be amplified, and the noise reduction effect is poor, and the noise reduction structure is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a noise reduction structure for a dry type transformer.

A noise reduction structure for a dry type transformer comprises a shell, wherein a mounting groove is formed in the shell, a mounting rack is arranged in the mounting groove, positioning grooves are formed in four sides of the bottom of the shell close to the mounting rack, wherein,

a positioning rod is fixed on one side, close to the positioning groove, of the mounting frame, first bolt grooves are formed in two sides of the mounting frame, a first connecting groove penetrates through one side, close to the first bolt grooves, of the shell, a first T-shaped bolt penetrates through the inside of the first connecting groove, sound-absorbing cotton is fixed on the inner wall of the mounting groove, an iron core is mounted on the inner side of the mounting frame, mounting seats are fixed to two ends of the iron core, a shock pad is arranged between the mounting seats and the mounting frame, and second connecting grooves penetrate through two sides of the mounting seats;

one side of the mounting bracket, which is close to the second communicating groove, is penetrated with a second bolt groove, the second communicating groove is penetrated with the inside of the second bolt groove to form a second T-shaped bolt, one side of the second T-shaped bolt, which is close to the mounting seat, is sleeved with a spring pad, one side of the mounting bracket, which is close to the second bolt groove, is provided with a first clamping groove, one side of the second T-shaped bolt, which is close to the first clamping groove, is provided with a second clamping groove, and the first clamping groove and the inside of the second clamping groove are fixed with wedge blocks.

Preferably, the positioning rod is a cylinder, and the positioning rod and the positioning groove form a positioning structure.

Preferably, the sound-absorbing cotton is fixed on the inner wall of the mounting groove by gluing.

Preferably, the shock pad is made of rubber materials.

Preferably, the second T-shaped bolt is elastically connected with the mounting seat through a spring pad.

Preferably, a wedge groove is formed when the first clamping groove and the second clamping groove are aligned, and the wedge groove formed by the first clamping groove and the second clamping groove is in interference fit with the wedge block.

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

1. the utility model discloses a what set up inhales the sound cotton, when the transformer used, the iron core vibrations lead to and the mounting bracket between produce the noise, the noise of production is propagated in the air, when the sound cotton is inhaled in the sound wave, absorbs the sound wave through inhaling the sound cotton, is convenient for fall the noise that the transformer produced.

2. The utility model discloses a voussoir that sets up, when carrying out fixed connection through second T shape bolt to mount pad and mounting bracket, make first draw-in groove align with the second draw-in groove, form the wedge groove, later make the voussoir fix in the inside of wedge groove through interference fit, avoid second T shape bolt to continue to rotate through the voussoir, avoid second T shape bolt to take place to reverse the installation that leads to the iron core and take place not hard up.

3. The utility model discloses a spring pad that sets up, when carrying out fixed connection to mount pad and mounting bracket through second T shape bolt, make the spring pad cover on second T shape bolt, make second T shape bolt get into the inside in second intercommunication groove and second bolt groove, after second T shape bolt supports the mount pad through the spring pad, and when first draw-in groove and second draw-in groove dislocation, make second T shape bolt continue to rotate through the spring pad, just align with the second draw-in groove until first draw-in groove, through the spring pad, be convenient for make first draw-in groove align with the second draw-in groove.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1 according to the present invention;

fig. 3 is a schematic view of a part of the enlarged structure at B in fig. 1 according to the present invention.

In the figure: 1. a housing; 2. mounting grooves; 3. a mounting frame; 4. positioning a groove; 5. positioning a rod; 6. a first bolt slot; 7. a first connecting groove; 8. a first T-bolt; 9. sound-absorbing cotton; 10. an iron core; 11. a mounting seat; 12. a shock pad; 13. a second communicating groove; 14. a second bolt slot; 15. a second T-bolt; 16. a spring pad; 17. a first card slot; 18. a second card slot; 19. and (4) wedge blocks.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description, with reference to the accompanying drawings and embodiments, will explain in further detail a noise reduction structure for a dry-type transformer. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Please refer to fig. 1 to 3, the embodiment of the present invention: a noise reduction structure for a dry-type transformer comprises a shell 1, a mounting groove 2, a mounting frame 3, positioning grooves 4, positioning rods 5, a first bolt groove 6, a first connecting groove 7, a first T-shaped bolt 8, sound absorption cotton 9, an iron core 10, a mounting seat 11, a shock pad 12, a second connecting groove 13, a second bolt groove 14, a second T-shaped bolt 15, a spring pad 16, a first clamping groove 17, a second clamping groove 18 and wedge blocks 19, wherein the mounting groove 2 is formed in the shell 1, the mounting frame 3 is mounted in the mounting groove 2, the positioning grooves 4 are formed in four sides of the bottom of the shell 1, which are close to the mounting frame 3,

a positioning rod 5 is fixed on one side of the mounting frame 3 close to the positioning groove 4, the positioning rod 5 is a cylinder, the positioning rod 5 and the positioning groove 4 form a positioning structure, when the mounting frame 3 is mounted, the mounting frame 3 drives the positioning rod 5 to enter the inside of the positioning groove 4, the mounting frame 3 is positioned by the positioning rod 5, the first bolt groove 6 is exactly aligned with the first communicating groove 7, a first T-shaped bolt 8 conveniently penetrates through the first communicating groove 7 to enter the inside of the first bolt groove 6 to fix the mounting frame 3, first bolt grooves 6 are arranged on two sides of the mounting frame 3, a first communicating groove 7 penetrates through one side of the shell 1 close to the first bolt groove 6, a first T-shaped bolt 8 penetrates through the inside of the first communicating groove 7, sound-absorbing cotton 9 is fixed on the inner wall of the mounting groove 2, the sound-absorbing cotton 9 is fixed on the inner wall of the mounting groove 2 by gluing, when the connection between the iron core 10 and the mounting frame 3 generates vibration, the generated noise is transmitted in the air, when the sound wave passes through the sound absorption cotton 9, the sound wave is absorbed through the sound absorption cotton 9, noise reduction of the noise generated by the transformer is facilitated, the iron core 10 is mounted on the inner side of the mounting frame 3, mounting seats 11 are fixed at two ends of the iron core 10, a shock absorption pad 12 is arranged between the mounting seats 11 and the mounting frame 3, the shock absorption pad 12 is made of rubber materials, and second communication grooves 13 penetrate through two sides of the mounting seats 11;

a second bolt groove 14 penetrates through one side of the mounting frame 3 close to the second communicating groove 13, a second T-shaped bolt 15 penetrates through the second communicating groove 13 and the inside of the second bolt groove 14, the second T-shaped bolt 15 is elastically connected with the mounting frame 11 through a spring pad 16, when the mounting frame 11 and the mounting frame 3 are fixedly connected through the second T-shaped bolt 15, the spring pad 16 is sleeved on the second T-shaped bolt 15, the second T-shaped bolt 15 enters the second communicating groove 13 and the inside of the second bolt groove 14, when the second T-shaped bolt 15 is abutted against the mounting frame 11 through the spring pad 16 and the first clamping groove 17 and the second clamping groove 18 are staggered, the second T-shaped bolt 15 continues to rotate through the spring pad 16 until the first clamping groove 17 is exactly aligned with the second clamping groove 18, the spring pad 16 is convenient for aligning the first clamping groove 17 with the second clamping groove 18, and the spring pad 16 is sleeved on one side of the second T-shaped bolt 15 close to the mounting frame 11, first draw-in groove 17 has been seted up to one side that the mounting bracket 3 is close to second bolt groove 14, form the wedge groove when first draw-in groove 17 aligns with second draw-in groove 18, and be interference fit between wedge groove and the voussoir 19 that first draw-in groove 17, second draw-in groove 18 formed, when carrying out fixed connection through second T shape bolt 15 to mount pad 11 with mounting bracket 3, make first draw-in groove 17 align with second draw-in groove 18, form the wedge groove, later make voussoir 19 fix in the inside of wedge groove through interference fit, avoid second T shape bolt 15 to continue to rotate through voussoir 19, avoid second T shape bolt 15 to take place to reverse and lead to the installation of iron core 10 to take place to become flexible, second draw-in groove 18 has been seted up to one side that second T shape bolt 15 is close to first draw-in groove 17, first draw-in groove 17 is fixed with voussoir 19 with the inside of second.

The working principle is as follows: when the noise reduction structure for the dry-type transformer is used, firstly, the iron core 10 is fixedly connected with the mounting frame 3 through the mounting seat 11, the spring pad 16 is sleeved on the second T-shaped bolt 15, the second T-shaped bolt 15 enters the second communicating groove 13 and the second bolt groove 14, when the second T-shaped bolt 15 is abutted to the mounting seat 11 through the spring pad 16 and the first clamping groove 17 and the second clamping groove 18 are staggered, the second T-shaped bolt 15 is continuously rotated through the spring pad 16 until the first clamping groove 17 and the second clamping groove 18 are just aligned to form a wedge groove, then the wedge block 19 is fixed in the wedge groove through interference fit, the second T-shaped bolt 15 is prevented from continuously rotating through the wedge block 19, the situation that the second T-shaped bolt 15 rotates reversely to cause the installation of the iron core 10 to be loosened is avoided, when the transformer is used in a vibration mode, noise is generated between the iron core 10 and the mounting frame 3, the noise that produces propagates in the air, inhales the sound wave when cotton 9 is inhaled to the sound wave process, absorbs the sound wave through inhaling sound cotton 9, is convenient for fall the noise that the transformer produced and makes an uproar.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention.

Claims

1. A noise reducing structure for a dry transformer, comprising a housing (1), characterized in that: the inner part of the shell (1) is provided with a mounting groove (2), the inner part of the mounting groove (2) is provided with a mounting rack (3), four sides of the bottom of the shell (1) close to the mounting rack (3) are provided with positioning grooves (4), wherein,

a positioning rod (5) is fixed on one side, close to the positioning groove (4), of the mounting frame (3), first bolt grooves (6) are formed in two sides of the mounting frame (3), a first connecting groove (7) penetrates through one side, close to the first bolt grooves (6), of the shell (1), a first T-shaped bolt (8) penetrates through the inside of the first connecting groove (7), sound-absorbing cotton (9) is fixed on the inner wall of the mounting groove (2), an iron core (10) is installed on the inner side of the mounting frame (3), mounting seats (11) are fixed at two ends of the iron core (10), a shock-absorbing pad (12) is arranged between the mounting seats (11) and the mounting frame (3), and second connecting grooves (13) penetrate through two sides of the mounting seats (11);

the utility model discloses a bolt, including mounting bracket (3), second intercommunication groove (13), second T shape bolt (15), spring pad (16) are worn to one side that mounting bracket (3) are close to second intercommunication groove (13) one side run-through has second bolt groove (14), second intercommunication groove (13) and the inside of second bolt groove (14) run-through have second T shape bolt (15), one side cover that second T shape bolt (15) are close to mount pad (11) has, first draw-in groove (17) have been seted up to one side that mounting bracket (3) are close to second bolt groove (14), second draw-in groove (18) have been seted up to one side that second T shape bolt (15) are close to first draw-in groove (17), first draw-in groove (17) and the inside of second draw-in groove (18) are fixed.

2. Noise reduction structure for dry-type transformers according to claim 1, characterized in that: the positioning rod (5) is a cylinder, and the positioning rod (5) and the positioning groove (4) form a positioning structure.

3. Noise reduction structure for dry-type transformers according to claim 1, characterized in that: the sound absorption cotton (9) is fixed on the inner wall of the mounting groove (2) through gluing.

4. Noise reduction structure for dry-type transformers according to claim 1, characterized in that: the shock pad (12) is made of rubber materials.

5. Noise reduction structure for dry-type transformers according to claim 1, characterized in that: the second T-shaped bolt (15) is elastically connected with the mounting seat (11) through a spring pad (16).

6. Noise reduction structure for dry-type transformers according to claim 1, characterized in that: a wedge groove is formed when the first clamping groove (17) is aligned with the second clamping groove (18), and the wedge groove formed by the first clamping groove (17) and the second clamping groove (18) is in interference fit with the wedge block (19).