CN222580943U - A low noise dry type transformer - Google Patents

Abstract

The utility model relates to the technical field of transformers, and discloses a low-noise dry-type transformer, including a transformer shell, a dry-type transformer body is fixedly arranged at the center of the inner bottom surface of the transformer shell, an extension plate is fixedly arranged at the air inlet on one side of the transformer shell, a No. 1 dust screen is fixedly arranged at the end of the extension plate away from the transformer shell, and a breathable and silent cotton plate is fixedly arranged inside the extension plate close to the transformer shell; internal threaded pipes are arranged on both sides of the center of the upper end of the transformer shell, and silencer columns are threadedly sleeved at the opposite ends of the two internal threaded pipes, and No. 2 dust screens are fixedly arranged at the inner ends of the two internal threaded pipes, and heat dissipation fans are fixedly arranged at the centers of the two internal threaded pipes through multiple connecting rods. In the utility model, the device has multiple silent functions, and will not produce loud noise while dissipating heat, making it more green and environmentally friendly to use.

Description

Low-noise dry-type transformer

Technical Field

The utility model relates to the technical field of transformers, in particular to a low-noise dry-type transformer.

Background

A dry-type transformer is a transformer that does not use a liquid insulating agent, but rather uses a solid insulating material to isolate and cool electrical components. Dry transformers use air or solid insulating materials to achieve the same function as compared to conventional liquid insulating agents such as oil for insulation and heat dissipation. The insulation and heat dissipation mechanism of dry transformers uses solid materials instead of conventional liquid insulation. The insulating material is usually a material having good insulating properties such as dry cardboard, epoxy resin, or mylar. Meanwhile, the dry type transformer radiates heat using natural cooling or a fan cooling system, not by an oil circulation or a cooler. Dry transformers have some advantages over oil immersed transformers. Firstly, the dry-type transformer is safer because no liquid insulating agent is used, and potential safety hazards cannot be caused by problems such as liquid leakage or fire explosion. Secondly, the dry type transformer is more environment-friendly, does not pollute the environment, and is easier to recycle and process. In addition, the dry-type transformer is simpler in operation and maintenance.

However, the existing dry-type transformer often has some sound when in operation, and in addition, if the heat dissipation is realized through a fan, the sound is larger, so that the noise when the dry-type transformer is in operation affects the outside. Accordingly, a low noise dry-type transformer is provided by those skilled in the art to solve the above-mentioned problems.

Disclosure of utility model

The utility model aims to solve the defects in the prior art, and provides a low-noise dry-type transformer which has multiple mute effects, does not have larger noise when radiating heat, and is more environment-friendly to use.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the low-noise dry-type transformer comprises a transformer shell, wherein a dry-type transformer body is fixedly arranged in the center of the inner bottom surface of the transformer shell, an extension plate is fixedly arranged at an air inlet hole at one side of the transformer shell, a first dust screen is fixedly arranged at one end, far away from the transformer shell, of the extension plate, and an air-permeable mute cotton plate is fixedly arranged inside the extension plate, close to one side of the transformer shell;

The transformer is characterized in that two sides of the center of the upper end inside the transformer shell are respectively provided with an internal thread pipe, one end, opposite to the internal thread pipes, of each internal thread pipe is respectively provided with a silencing post in a threaded sleeve manner, one end, close to the inner side, of each internal thread pipe is respectively fixedly provided with a second dust screen, and the center inside each internal thread pipe is respectively fixedly provided with a heat dissipation fan through a plurality of connecting rods;

The transformer shell comprises a sound insulation layer, aluminum alloy layers are arranged on the two outer sides of the sound insulation layer, sound absorption layers are arranged on the outer sides of the two aluminum alloy layers, and fireproof flame-retardant layers are arranged on the outer sides of the two sound absorption layers;

Through above-mentioned technical scheme, this device has multiple silence's effect, and does not also have great noise when carrying out the heat dissipation, uses more green.

Further, a plurality of silencing holes are formed in the surface of the silencing post, the silencing post is in a cylindrical shape, one end of the silencing post is smaller in diameter, and the other end of the silencing post is larger in diameter;

Through above-mentioned technical scheme, the inside a plurality of baffles and the inside lining of being provided with of amortization post, and baffle and inside lining are all made by inhaling the sound cotton material.

Further, the dry-type transformer body is formed by combining an iron core, a winding, an insulating material and a wiring terminal;

Through the technical scheme, the device is a main working original.

Further, the sound insulation layer is made of a sound insulation foam material;

Through the technical scheme, the material is used for sound absorption and sound insulation, and is usually made of polyurethane or polyester foaming materials. Its surface typically has a porous structure that absorbs and dissipates acoustic energy, thereby reducing the transmission and reflection of noise.

Further, the sound absorbing layer is made of an areal density plate material;

Through the technical scheme, the surface density board can provide a sound absorption effect to a certain extent, and the sound absorption effect of the surface density board is mainly based on the shape and texture of the surface density board and the density of the board. The areal density board generally has a smooth and uniform density surface which makes it more effective for absorbing high frequency sound waves.

Further, the fireproof flame-retardant layer is made of silicate paint;

Through the technical scheme, the environment-friendly healthy coating is mainly composed of silicate, potassium silicate inorganic substances and water. The silicate paint has good air permeability, durability and fireproof performance, can effectively prevent the wall surface from mildewing, cracking and falling off, and achieves the double effects of beautiful decoration and environmental protection.

The utility model has the following beneficial effects:

According to the low-noise dry type transformer provided by the utility model, the transformer shell of the dry type transformer has certain sound insulation and sound absorption functions, in the process, the air inlet end is mute by the air-permeable mute cotton plate, the air outlet end can realize heat dissipation and air exhaust through the internal thread pipe, the dry type transformer body and the heat dissipation fan are both positioned in the transformer shell, the sound of the air outlet end of the internal thread pipe can realize air exhaust and noise reduction through the noise reduction column, the whole device is free from loud sound when being used, and the use is quieter and environment-friendly.

Drawings

Fig. 1 is an axial schematic view of a low noise dry-type transformer according to the present utility model;

FIG. 2 is a schematic side cross-sectional view of a transformer housing of the present utility model;

FIG. 3 is a schematic front cross-sectional view of the present utility model;

Fig. 4 is a schematic view of a transformer housing according to the present utility model.

Legend description:

1. the transformer comprises a transformer shell, a silencing post, a No. 3 extending plate, a No. 4 dustproof net, a No. 5 dry type transformer body, a No. 6 breathable silencing cotton plate, a No. 7 internal thread pipe, a No. 8 dustproof net, a No. 9 connecting rod, a No. 10 radiating fan, a No. 101 sound insulation layer, a No. 102 aluminum alloy layer, a No. 103 sound absorption layer, a No. 104 fireproof flame-retardant layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-4, the low-noise dry-type transformer comprises a transformer shell 1, wherein a dry-type transformer body 5 is fixedly arranged at the center of the inner bottom surface of the transformer shell 1, an extension plate 3 is fixedly arranged at an air inlet hole at one side of the transformer shell 1, a first dust screen 4 is fixedly arranged at one end of the extension plate 3, which is far away from the transformer shell 1, a ventilation and mute cotton plate 6 is fixedly arranged inside one side, which is close to the transformer shell 1, of the extension plate 3, the ventilation and mute cotton plate 6 is made of a high ventilation polyester fiber cotton plate material, and air intake is not influenced while sound absorption is performed;

The two sides of the center of the upper end inside the transformer shell 1 are respectively provided with an internal thread pipe 7, the opposite ends of the two internal thread pipes 7 are respectively provided with a silencing post 2 in a threaded sleeve mode, the silencing posts 2 are very convenient to mount in a threaded mode, the inner ends of the two internal thread pipes 7 close to the inner sides are respectively fixedly provided with a second dust screen 8, and the inner centers of the two internal thread pipes 7 are respectively fixedly provided with a heat dissipation fan 10 through a plurality of connecting rods 9;

The transformer housing 1 includes puigging 101, and puigging 101 both sides all are provided with aluminum alloy layer 102, and two aluminum alloy layer 102 outsides all are provided with sound absorbing layer 103, and two sound absorbing layer 103 outsides all are provided with fire prevention flame retardant layer 104, and this device has the effect of multiple silence, and also does not have great noise when carrying out the heat dissipation, uses more green.

The surface of the silencing post 2 is provided with a plurality of silencing holes, the silencing post 2 is in a cylindrical shape, one end of the silencing post is smaller in diameter, the other end of the silencing post is larger in diameter, a plurality of partition boards and inner liners are arranged inside the silencing post 2, the partition boards and the inner liners are made of sound-absorbing cotton materials, the dry-type transformer body 5 is formed by combining an iron core, windings, insulating materials and connecting terminals, the main working element is the sound-insulating layer 101 is made of sound-insulating foam materials, and the sound-insulating layer is a material for absorbing sound and insulating sound and is usually made of polyurethane or polyester foam materials. The surface of the panel is generally porous and is capable of absorbing and dissipating acoustic energy, thereby reducing noise transmission and reflection, and the sound absorbing layer 103 is made of a panel having a surface density which provides a sound absorbing effect to a certain extent, the sound absorbing effect of the panel being mainly based on the shape and texture of the surface and the density of the panel itself. The surface density board generally has a smooth and uniform surface, which makes it better for absorbing high-frequency sound waves, and the fireproof flame-retardant layer 104 is made of silicate paint, is a healthy and environment-friendly paint, and mainly consists of silicate, potassium silicate inorganic substances and water. The silicate paint has good air permeability, durability and fireproof performance, can effectively prevent the wall surface from mildewing, cracking and falling off, and achieves the double effects of beautiful decoration and environmental protection.

When the dry type transformer works, the dry type transformer body 5 can emit certain sound, the heat dissipation fan 10 can also generate certain sound, the sound can be isolated through the transformer shell 1, external air can enter through the ventilation and silencing cotton plate 6, the silencing post 2 flows out, the sound can realize silencing treatment through the silencing post 2, and under the condition of various silencing, the sound of equipment work is shielded, the sound pollution to the outside is not caused, and the use is more green and environment-friendly.

It should be noted that the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present utility model.

Claims (6)

1. The low-noise dry-type transformer comprises a transformer shell (1) and is characterized in that a dry-type transformer body (5) is fixedly arranged in the center of the inner bottom surface of the transformer shell (1), an extension plate (3) is fixedly arranged at an air inlet hole on one side of the transformer shell (1), a first dust screen (4) is fixedly arranged at one end, far away from the transformer shell (1), of the extension plate (3), and an air-permeable mute cotton plate (6) is fixedly arranged in the interior, close to one side of the transformer shell (1), of the extension plate (3);

The transformer is characterized in that two sides of the center of the upper end inside the transformer shell (1) are respectively provided with an internal thread pipe (7), one end, opposite to the internal thread pipes (7), of each internal thread pipe is respectively provided with a silencing post (2) in a threaded sleeve mode, one end, close to the inner side, of each internal thread pipe (7) is respectively fixedly provided with a second dust screen (8), and the center inside each internal thread pipe (7) is respectively fixedly provided with a heat dissipation fan (10) through a plurality of connecting rods (9);

The transformer shell (1) comprises a sound insulation layer (101), aluminum alloy layers (102) are arranged on two outer sides of the sound insulation layer (101), sound absorption layers (103) are arranged on two outer sides of the aluminum alloy layers (102), and fireproof flame-retardant layers (104) are arranged on two outer sides of the sound absorption layers (103).

2. The low-noise dry-type transformer according to claim 1, wherein the surface of the silencing post (2) is provided with a plurality of silencing holes, the silencing post (2) is in a cylindrical shape, and one end of the silencing post is smaller in diameter and the other end of the silencing post is larger in diameter.

3. A low noise dry type transformer according to claim 1, wherein the dry type transformer body (5) is composed of a core, a winding, an insulating material and a connection terminal.

4. A low noise dry transformer according to claim 1, wherein the sound insulation layer (101) is made of a sound insulation foam material.

5. A low noise dry transformer according to claim 1, wherein the sound absorbing layer (103) is made of an areal density board material.

6. A low noise dry transformer according to claim 1, wherein the fire-retardant layer (104) is made of silicate paint.