CN210606934U

CN210606934U - Noise reduction structure of dry-type transformer

Info

Publication number: CN210606934U
Application number: CN201921170932.5U
Authority: CN
Inventors: 陈长江; 王东亮; 何亮; 刘智焘
Original assignee: Wuhan Grace Electric Co ltd
Current assignee: Wuhan Grace Electric Co ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-05-22
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a dry-type transformer falls structure of making an uproar relates to dry-type transformer technical field, often can produce the noise when the operation for solving current dry-type transformer, and the noise that the great dry-type transformer of capacity produced is more outstanding moreover, influences holistic performance. The coil is characterized in that supporting blocks are mounted at two ends of the coil, a low-voltage wiring block is mounted on one side of the supporting block above the coil, a high-voltage wiring block is mounted on the other side of the supporting block above the coil, a low-voltage wiring block is arranged at the lower end inside the dry-type transformer shell, heat dissipation fans are mounted on two sides of the upper end of the low-voltage wiring block, noise absorbing plates are mounted on inner walls of two sides of the dry-type transformer shell, and noise reduction structures are mounted on the inner sides of the noise absorbing plates.

Description

Noise reduction structure of dry-type transformer

Technical Field

The utility model relates to a dry-type transformer technical field specifically is a structure of making an uproar falls in dry-type transformer.

Background

Dry-type transformers are widely used in local lighting, high-rise buildings, wharfs and CNC machinery, and simply, dry-type transformers refer to transformers in which the iron core and the winding are not immersed in insulating oil. The cooling method is divided into natural air cooling and forced air cooling. During natural air cooling, the transformer can continuously operate for a long time under the rated capacity. When forced air cooling is carried out, the output capacity of the transformer can be improved by fifty percent. The device is suitable for intermittent overload operation or emergency accident overload operation; because the load loss and the impedance voltage amplification are large during overload and the device is in a non-economic operation state, the device is not required to be in continuous overload operation for a long time. Because the dry-type transformer has very good fire-proof performance, the application of the dry-type transformer is more and more extensive along with the development of social economy, compared with an oil-immersed transformer, the dry-type transformer has a series of advantages of good fire-proof performance, no maintenance, no pollution, strong short-circuit resistance and the like, and noise is often generated, and the noise generated by the vibration of the dry-type transformer with larger capacity is more prominent.

However, the existing dry-type transformer often generates noise during operation, and the noise generated by the dry-type transformer with larger capacity is more prominent, thereby affecting the overall use performance; therefore, the existing requirements are not met, and a noise reduction structure of the dry-type transformer is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a structure of making an uproar falls of dry-type transformer to solve the current dry-type transformer that proposes in the above-mentioned background art often can produce the noise when the operation, the noise that the great dry-type transformer of capacity produced is more outstanding moreover, influences the problem of holistic performance.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a structure of making an uproar falls in dry-type transformer, includes the dry-type transformer casing, the coil is installed to the inside intermediate position department of dry-type transformer casing, the supporting shoe is all installed at the both ends of coil, the low pressure terminal block is installed to one side of coil top supporting shoe, the high pressure terminal block is installed to the opposite side of the supporting shoe of coil top, and low pressure terminal block and high pressure terminal block all pass through screw connection with the supporting shoe, the inside lower extreme of dry-type transformer casing is provided with the low pressure terminal block, radiator fan is all installed to the both sides of low pressure terminal block upper end, and radiator fan is located the both sides of the supporting shoe of coil below, the board of making an uproar is inhaled in the installation all installed to the both sides inner wall of dry-type transformer casing.

Preferably, the noise reduction structure is provided with a noise reduction structure shell outside, and the upper end inside the noise reduction structure shell is a rectangular array and is provided with sound absorption grooves.

Preferably, the both sides of making an uproar structure casing all are provided with the installation fixed block, the inside of installation fixed block is provided with the fixed mounting hole, and the fixed mounting hole is provided with a plurality of, and a plurality of fixed mounting hole distributes in proper order.

Preferably, the lower extreme in sound absorption groove is installed and is inhaled the sound sponge, the lower extreme of inhaling the sound sponge is provided with inhales the sound loudspeaker.

Preferably, the lower end of the sound-absorbing horn is provided with a sound-playing horn, and the lower end of the sound-playing horn is provided with honeycomb sound-absorbing cotton.

Preferably, the honeycomb sound-absorbing cotton is connected with a sound-playing horn in a sticking way.

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

1. the utility model discloses an early dry-type transformer casing is inside both sides install and is fallen the structure of making an uproar, can be when the noise is produced in inside work, through falling the effect that the mechanism rapidly absorbed noise of making an uproar falls, solved current dry-type transformer and often can produce the noise when the operation, the noise that the dry-type transformer that capacity is great produced moreover is more outstanding, influences the problem of holistic performance.

2. The utility model discloses a be provided with a plurality of and inhale the sound groove in the upper end of making an uproar mechanism of falling, the noise can be better more rapid get into the inside that inhales the sound groove, owing to inhale the sound groove and be provided with a plurality ofly, consequently can be in the very short time noise absorption for the noise is absorbed in inside, can improve dry-type transformer's practicality to a certain extent.

Drawings

Fig. 1 is a schematic structural diagram of a noise reduction structure of a dry-type transformer according to the present invention;

fig. 2 is a perspective view of the noise reduction structure of the present invention;

fig. 3 is a schematic structural view of the noise reduction structure of the present invention.

In the figure: 1. a dry-type transformer housing; 2. a coil; 3. a low voltage junction block; 4. a high-voltage junction block; 5. a cable holder; 6. a support block; 7. a heat radiation fan; 8. installing a noise absorption plate; 9. a noise reduction structure; 10. a noise reduction structure housing; 11. mounting a fixed block; 12. fixing the mounting hole; 13. a sound absorbing groove; 14. sound-absorbing sponge; 15. a sound-absorbing horn; 16. a playback loudspeaker; 17. the honeycomb absorbs the sound cotton.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: a noise reduction structure of a dry type transformer comprises a dry type transformer shell 1, a coil 2 is installed in the middle of the inside of the dry type transformer shell 1, supporting blocks 6 are installed at two ends of the coil 2, a low-voltage wiring block 3 is installed at one side of the supporting block 6 above the coil 2, a high-voltage wiring block 4 is installed at the other side of the supporting block 6 above the coil 2, the low-voltage wiring block 3, the high-voltage wiring block 4 and the supporting blocks 6 are connected through screws, the low-voltage wiring block 3 and the high-voltage wiring block 4 can be connected more quickly and conveniently, the stability is higher, the low-voltage wiring block 3 is arranged at the lower end of the inside of the dry type transformer shell 1, heat dissipation fans 7 are installed at two sides of the upper end of the low-voltage wiring block 3, the heat dissipation fans 7 are located at two sides of the supporting block 6 below the coil 2, the structure of making an uproar 9 of making an uproar falls in the inboard of board 8 of making an uproar is installed in the installation, and it is better to fall the performance of making an uproar, and holistic practicality is higher, and cable support 5 is installed to the both sides of low pressure lug 3.

Further, the outside of structure of making an uproar 9 of falling is provided with the structure of making an uproar casing 10 of falling, and the upper end of the structure of making an uproar casing 10 inside of falling is the rectangular array and has seted up sound absorption groove 13, and sound absorbing effect is better, and is quicker, and performance is more perfect.

Further, the both sides of the structure casing 10 of making an uproar all are provided with installation fixed block 11, and the inside of installation fixed block 11 is provided with fixed mounting hole 12, and fixed mounting hole 12 is provided with a plurality of, and a plurality of fixed mounting hole 12 distributes in proper order, can be better to the structure casing 10 of making an uproar install and fix.

Further, inhale the lower extreme of sound groove 13 and install and inhale sound sponge 14, inhale the lower extreme of sound sponge 14 and be provided with and inhale sound loudspeaker 15, inhale the effect of sound better.

Furthermore, a sound reproduction horn 16 is arranged at the lower end of the sound absorption horn 15, honeycomb sound absorption cotton 17 is arranged at the lower end of the sound reproduction horn 16, noise can be well consumed by the honeycomb sound absorption cotton 17, and the practicability of the noise reduction structure 9 is more perfect.

Furthermore, the honeycomb sound-absorbing cotton 17 is connected with the sound-playing loudspeaker 16 in a sticking mode, so that the honeycomb sound-absorbing cotton 17 is quicker to mount and dismount, and the connection stability is higher.

The working principle is as follows: during the use, with high-voltage cable and low-voltage cable respectively with low-voltage terminal block 3 and 4 electric links of high-voltage terminal block, can begin to use after the connection is accomplished, dry-type transformer begins to work, dry-type transformer during operation is inside to produce certain noise, inhale sound groove 13 can be fast with the noise absorption to inhale sound groove 13 inside, the noise gets into through inhaling sound sponge 14 and inhales sound loudspeaker 15 and playback loudspeaker 16, get into the honeycomb at last and inhale the inside of sound cotton 17, the honeycomb inhales the consumption noise that sound cotton 17 can be fine, thereby make the inside noise of dry-type transformer casing 1 inside fine inside by the heat dissipation fan 7 of consuming the installation of low-voltage terminal block 3 upper end both sides fine dispel the heat, reduce inside temperature and also can play the effect of making an.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A noise reduction structure of a dry type transformer comprises a dry type transformer shell (1), and is characterized in that: a coil (2) is installed in the middle of the inside of the dry type transformer shell (1), supporting blocks (6) are installed at two ends of the coil (2), a low-voltage wiring block (3) is installed on one side of the supporting block (6) above the coil (2), a high-voltage wiring block (4) is installed on the other side of the supporting block (6) above the coil (2), the low-voltage wiring block (3), the high-voltage wiring block (4) and the supporting block (6) are connected through screws, the low-voltage wiring block (3) is arranged at the lower end of the inside of the dry type transformer shell (1), heat dissipation fans (7) are installed on two sides of the upper end of the low-voltage wiring block (3), the heat dissipation fans (7) are located on two sides of the supporting block (6) below the coil (2), and noise absorbing plates (8) are installed on inner walls of two sides of, the noise reduction structure (9) is installed to the inboard of installing noise absorption board (8), cable support (5) are installed to the both sides of low pressure lug (3).

2. A noise reduction structure of a dry type transformer according to claim 1, wherein: the noise reduction structure is characterized in that a noise reduction structure shell (10) is arranged outside the noise reduction structure (9), and the upper end inside the noise reduction structure shell (10) is in a rectangular array and is provided with sound absorption grooves (13).

3. A noise reduction structure of a dry type transformer as set forth in claim 2, wherein: the noise reduction structure is characterized in that installation fixing blocks (11) are arranged on two sides of the noise reduction structure shell (10), fixed mounting holes (12) are formed in the installation fixing blocks (11), the fixed mounting holes (12) are provided with a plurality of, and the fixed mounting holes (12) are distributed in sequence.

4. A noise reduction structure of a dry type transformer as set forth in claim 2, wherein: inhale sound sponge (14) are installed to the lower extreme of sound absorption groove (13), the lower extreme of inhaling sound sponge (14) is provided with inhales sound loudspeaker (15).

5. A noise reduction structure of a dry type transformer according to claim 4, wherein: the lower end of the sound-absorbing horn (15) is provided with a sound-playing horn (16), and the lower end of the sound-playing horn (16) is provided with honeycomb sound-absorbing cotton (17).

6. A noise reduction structure of a dry type transformer according to claim 5, wherein: the honeycomb sound-absorbing cotton (17) is connected with the sound-playing loudspeaker (16) in a sticking way.