CN210489359U - Transformer and box thereof - Google Patents

Abstract

The utility model discloses a transformer and a box body thereof, the box body comprises a bottom wall part and a peripheral wall part fixedly connected with the bottom wall part, the peripheral wall part comprises more than two peripheral wall plates, and the more than two peripheral wall plates are parallel to each other and are arranged at intervals; a cavity formed between two adjacent peripheral wall plates is filled with a noise damping material; or the cavity formed between two adjacent peripheral wall plates is divided into a plurality of cavities by a plurality of partition wall parts, and each cavity is filled with noise damping materials. The structural design of the box body of the transformer can effectively reduce the noise generated by the vibration of the iron core, so that the transformer meets the noise standard formulated by the national power grid.

Description

Transformer and box thereof

Technical Field

The utility model relates to a power equipment technical field especially relates to a transformer and box thereof.

Background

With the rapid development of power systems and the improvement of requirements of people on living environments, the influence of transformer noise on people is increasingly prominent.

The noise sources during the operation of the transformer mainly include: iron core, windings, and electromagnetic noise. The iron core of the transformer can generate tiny change, namely magnetostriction, under the action of an alternating magnetic field, the magnetostriction enables the iron core to periodically vibrate along with the change of excitation frequency to generate noise, once a finished product is manufactured, the noise level is basically fixed, the noise of a noise source is difficult to reduce through other methods, and the noise can be reduced only through carrying out sound insulation treatment on a box body of the transformer.

At present, damping materials such as soundproof cotton are paved in a box body of the transformer to reduce noise, so that the noise of the transformer cannot be effectively reduced.

Therefore, how to improve the box structure of the transformer to effectively reduce the noise generated by the vibration of the transformer core is a technical problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a transformer and box thereof, the structural design of the box of this transformer can effectively reduce because of the noise that the vibration of unshakable in one's determination produced, makes the transformer satisfy the noise standard that the national grid made.

In order to solve the above technical problem, the present invention provides a transformer box, including a bottom wall portion and a peripheral wall portion fixedly connected to the bottom wall portion, wherein the peripheral wall portion includes more than two peripheral wall plates, and the more than two peripheral wall plates are parallel to each other and arranged at intervals; a cavity formed between two adjacent peripheral wall plates is filled with a noise damping material; or the cavity formed between two adjacent peripheral wall plates is divided into a plurality of cavities by a plurality of partition wall parts, and each cavity is filled with noise damping materials.

The box body of the transformer has a sandwich structure of the peripheral wall part of the box body, at least two peripheral wall plates are arranged, and a sandwich space formed by two adjacent peripheral wall plates is filled with a noise damping material, so that the noise generated by the iron core positioned in the peripheral wall part due to vibration can be effectively reduced; a partition wall part can be arranged between two adjacent peripheral wall plates, so that the overall rigidity of the peripheral wall part can be increased.

In the transformer case described above, the sound insulating layer is provided on the wall surface of the outermost peripheral wall plate of the two or more peripheral wall plates, and the sound absorbing layer is provided on the wall surface of the remaining peripheral wall plate.

According to the transformer box, the sound insulation layer comprises the soundproof cotton layer and the soundproof plate layer which are arranged from inside to outside.

According to the transformer box body, the sound absorption layer comprises the sound absorption cotton layer and the perforated sound absorption plate which are arranged from inside to outside.

According to the box body of the transformer, the spacing distance between two adjacent peripheral wall plates is 10-100 mm.

The transformer box body further comprises end wall plates parallel to the bottom wall, wherein the end wall plates are positioned at the top ends of the peripheral wall and fixedly connected with the peripheral wall plates.

In the transformer tank described above, the noise damping material is sand, and the end wall plate has a filling opening filled with sand.

In the transformer tank described above, the heat dissipation member is provided on the outer wall of the peripheral wall portion, and the heat dissipation member includes a plurality of heat dissipation fins.

In the transformer tank described above, the partition wall portion is provided perpendicular to the bottom wall portion.

The utility model also provides a transformer, include the box and be located the iron core in the box, the box be above-mentioned arbitrary the box of transformer.

Since the box body of the transformer has the technical effects, the transformer comprising the box body also has the same technical effects, and the details are not repeated herein.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a transformer tank provided in the present invention;

FIG. 2 is a simplified structural diagram of one tank sidewall of the tank of the transformer shown in FIG. 1;

fig. 3 is a schematic end view of a part of the peripheral wall of the case of the transformer shown in fig. 1.

Wherein, the one-to-one correspondence between component names and reference numbers in fig. 1 to 3 is as follows:

a case 100, a bottom wall 110, a peripheral wall 120, an inner peripheral wall 121, an outer peripheral wall 122, a partition wall 123, a noise damping material 124, a cavity 125, a heat radiating member 130, and a heat radiating fin 131;

sound absorbing cotton layer 210, perforated sound absorbing plate 220, sound insulating cotton layer 230 and sound insulating plate layer 240.

Detailed Description

The core of the utility model is to provide a transformer and box thereof, the structural design of the box of this transformer can effectively reduce because of the noise that the vibration of unshakable in one's determination produced, makes the transformer satisfy the noise standard that the national grid made.

In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a transformer case according to an embodiment of the present invention; FIG. 2 is a simplified structural diagram of one tank sidewall of the tank of the transformer shown in FIG. 1; fig. 3 is a schematic end view of a part of the peripheral wall of the case of the transformer shown in fig. 1.

In this embodiment, the transformer tank 100 includes a bottom wall 110 and a peripheral wall 120 fixed to the bottom wall 110, and the peripheral wall 120 is a closed ring structure and forms a space for accommodating the core of the transformer with the bottom wall 1120.

It is understood that the structural design of the shape of the case 100 is related to the structural design of the core. Fig. 1 shows the case 100 in a substantially triangular structure, but in practical applications, the case 100 may have other shapes as needed.

The peripheral wall part 120 of the box body 100 includes more than two peripheral wall plates, the more than two peripheral wall plates are arranged in parallel and at intervals, so that the peripheral wall part 120 is of a sandwich structure, a partition wall part 123 is further arranged between two adjacent peripheral wall plates to partition a cavity formed between two adjacent peripheral wall plates into a plurality of cavities 125, and each cavity 125 is filled with a noise damping material 124.

In a specific embodiment, the noise damping material 124 may be sand, preferably fine sand, with the size of the fine sand being 0.2mm to 1 mm.

As described above, in the case 100 of the transformer, the peripheral wall 120 of the case has a sandwich structure, at least two peripheral wall plates are provided, and the noise damping material 124 is filled in the sandwich space formed by the two adjacent peripheral wall plates, so that the noise generated by the vibration of the core positioned inside the peripheral wall 120 can be effectively reduced; meanwhile, the partition wall 123 is provided between two adjacent peripheral wall plates, so that the overall rigidity of the peripheral wall can be increased.

In another embodiment, if the rigidity of the box 100 is sufficient, the noise damping material 124 may be directly filled in the cavity formed between two adjacent peripheral walls 120 without providing a partition wall.

In the illustrated embodiment, the structure that the peripheral wall part 120 of the box 100 is provided with two peripheral wall plates is exemplarily shown, and it can be understood that when the peripheral wall part 120 is provided with three or more peripheral wall plates, the corresponding structure is designed similarly, and the structure of the peripheral wall part 120 of the two peripheral wall plates will be described in detail below.

For ease of understanding and description, the peripheral wall plate near the center of the receiving cavity of the box 100 is referred to as an inner peripheral wall plate 121, and the opposite peripheral wall plate away from the center of the receiving cavity of the box 100 is referred to as an outer peripheral wall plate 122.

In a specific scheme, the wall surface of the inner-layer peripheral wall plate 121 is provided with a sound absorption layer, and the wall surface of the outer-layer peripheral wall plate 122 is provided with a sound insulation layer; preferably, the sound absorbing layer is provided on the outer wall surface of the inner-layer peripheral wall panel 121, and the sound insulating layer is provided on the inner wall surface of the outer-layer peripheral wall panel 122.

When three or more peripheral wall panels are provided in the peripheral wall portion 120, the wall surface of the outermost peripheral wall panel is provided with a sound insulation layer, and the wall surfaces of the remaining peripheral wall panels are provided with sound absorption layers.

After the design, in combination with the noise damping material 124 filled between the inner peripheral wall plate 121 and the outer peripheral wall plate 122, the noise generated by the core vibration inside the box body 100 can be subjected to multistage noise reduction treatment from inside to outside, and each stage of noise reduction structure is different, so that an effective noise reduction effect can be achieved on sound sources with different frequencies.

Wherein, sound absorbing layer and puigging all can be established to the structure more than two-layer, and different sound absorbing material or sound-proof material can be chooseed for use on different layers and made to can fall the noise to the sound source of more different frequencies.

In the concrete scheme, locate the sound absorbing layer of inlayer wall surrounding 121 wall and include the cotton layer 210 of inhaling the sound and the perforation abatvoix 220 of the interior sound absorption that outwards sets up of following, the inside of perforation abatvoix 220 has a large amount of intercommunication holes, and the sound wave can go deep into inside the panel along these holes, takes place the friction with panel to turn into heat energy with sound energy, and then reach the purpose of noise reduction.

The specific thickness of the sound absorbing cotton layer 210 and the perforated sound absorbing sheet 220 may be set according to actual needs.

In the concrete scheme, locate the puigging of outer wall board 122 wall including the soundproof cotton layer 230 and the soundproof plate layer 240 that set up from inside to outside, the setting of puigging can effectively prevent the outside transmission of noise.

In a specific embodiment, the distance between two adjacent peripheral wall plates of the peripheral wall 120 is 10 to 100mm, and it can be understood that the distance determines the thickness of the noise damping material 124 filled in the cavity 125, and is specifically set according to the noise reduction requirement.

In a specific embodiment, the partition wall 123 between two adjacent peripheral wall plates is perpendicular to the bottom wall 110, so as to facilitate filling the cavity 125 with the noise damping material 124. Preferably, the plurality of partition wall portions 123 are uniformly arranged along the circumferential direction of the circumferential wall portion 120, or the length of the corresponding circumferential wall surface, to ensure the balance of the rigidity of the case 100.

In a specific embodiment, the box 100 further includes end wall plates, which are located on top of the peripheral wall 120 and are fixedly connected to the peripheral wall plates, so as to further improve the rigidity of the box 100.

In addition, when the noise damping material 124 filled in the cavity 125 of the peripheral wall 120 is sand, a filling opening for filling sand is opened in the end wall plate to facilitate the replacement and filling of the sand.

In this embodiment, the outer wall of the peripheral wall 130 of the casing 100 is further provided with a heat dissipating member 130, the heat dissipating member 130 includes a plurality of heat dissipating fins 131, and the heat dissipating member 130 is provided on each wall surface forming the peripheral wall 120 as necessary to ensure a heat dissipating effect.

In addition to the box 100 of the transformer, the present invention further provides a transformer, which includes a box 100 and an iron core located in the box 100, wherein the box 100 is the box 100.

Since the box body of the transformer has the technical effects, the transformer comprising the box body also has the same technical effects, and the details are not repeated herein.

It is right above the utility model provides a transformer and box thereof have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. The box body of the transformer comprises a bottom wall part and a peripheral wall part fixedly connected with the bottom wall part, and is characterized in that the peripheral wall part comprises more than two peripheral wall plates which are arranged in parallel at intervals; a cavity formed between two adjacent peripheral wall plates is filled with a noise damping material; or the cavity formed between two adjacent peripheral wall plates is divided into a plurality of cavities by a plurality of partition wall parts, and each cavity is filled with noise damping materials.

2. The transformer tank according to claim 1, wherein a sound insulation layer is provided on a wall surface of an outermost peripheral wall plate of the two or more peripheral wall plates, and a sound absorption layer is provided on a wall surface of the remaining peripheral wall plates.

3. The transformer tank as claimed in claim 2, wherein the soundproof layers comprise soundproof cotton layers and soundproof plate layers disposed from inside to outside.

4. The transformer cabinet according to claim 2, wherein the sound absorption layer comprises a sound absorption cotton layer and a perforated sound absorption plate which are arranged from inside to outside.

5. The transformer tank of claim 1, wherein the distance between two adjacent peripheral wall plates is 10-100 mm.

6. The transformer tank of any one of claims 1 to 5, further comprising end wall plates parallel to the bottom wall, the end wall plates being located at top ends of the peripheral wall and fixedly connected to the peripheral wall plates.

7. The transformer tank of claim 6 wherein the noise dampening material is grit and the end wall panel has a grit-filled fill opening.

8. The transformer tank as claimed in any one of claims 1 to 5, wherein the outer side wall of the peripheral wall is provided with a heat dissipating member, and the heat dissipating member comprises a plurality of heat dissipating fins.

9. A transformer tank according to any one of claims 1 to 5 wherein the partition wall is disposed perpendicular to the bottom wall.

10. A transformer comprising a case and a core disposed in the case, wherein the case is the transformer case according to any one of claims 1 to 9.

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