CN210865863U

CN210865863U - Dry-type transformer

Info

Publication number: CN210865863U
Application number: CN201922166508.XU
Authority: CN
Inventors: 陈虹烨
Original assignee: Chengdu Eckd Electrical Co ltd
Current assignee: Chengdu Eckd Electrical Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-06-26
Anticipated expiration: 2029-12-05

Abstract

The utility model discloses a dry-type transformer mainly solves current dry-type transformer and can produce great noise when the moving, can't adsorb the noise that produces, can cause the problem of harm to outside personnel's ear. This dry-type transformer, including last rail with go up the iron core of rail below fixed mounting's equipartition and iron core below welded lower rail, the outside of iron core is provided with the protective layer, the protective layer include epoxy with the phenolic resin that the epoxy below set up and the melamine that the phenolic resin below set up, through above-mentioned scheme, the utility model discloses a casting epoxy in iron core department can increase the corrosion resistance of iron core itself, can reduce because of the harm of external factor to the iron core surface, increase the life of iron core, can absorb the sound that the iron core produced when work and vibration through the poly cyanamide, can effectually reduce the decibel of output volume.

Description

Dry-type transformer

Technical Field

The utility model relates to a dry-type transformer, specifically speaking relates to a dry-type transformer.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and main components are a primary coil, a secondary coil and an iron core (magnetic core), and the transformer has the main functions of: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like.

The existing dry-type transformer can generate large noise during operation, cannot absorb the generated noise, and can damage ears of external personnel.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dry-type transformer to solve current dry-type transformer and can produce great noise when the moving, can't adsorb the noise that produces, can cause the problem of harm to outside personnel's ear.

In order to solve the above problem, the utility model provides a following technical scheme:

the dry-type transformer comprises an upper rail, an iron core and a lower rail, wherein the iron core is fixedly installed below the upper rail in an evenly distributed mode, the lower rail is welded below the iron core, a protective layer is arranged outside the iron core, and the protective layer comprises epoxy resin, phenolic resin and melamine.

Through above-mentioned technical scheme, can increase the corrosion resistance of iron core itself through casting epoxy in iron core department, can reduce because of the harm of external factor to the iron core surface, increase the life of iron core, can absorb the sound that the iron core produced when work and vibration through the cyanamide, can the effectual decibel that reduces the output volume.

Preferably, the number of the iron cores is three, the high-voltage coil is sleeved outside the two iron cores, and the low-voltage coil is sleeved outside the iron cores.

Through above-mentioned technical scheme, can contact with the power through low voltage coil to carry electric current, can trade alternating voltage, electric current and impedance through high voltage coil and low voltage coil.

Preferably, the high-voltage coil and the low-voltage coil ensure that a high-quality copper foil and an insulating layer sleeved outside the high-quality copper foil are arranged outside the lead, and plant fibers are sleeved outside the insulating layer.

Through above-mentioned technical scheme, can carry out the secondary through the noise that plant fiber can carry out the iron core inside transport once more and absorb, can effectually reduce the volume and export outside volume, can play the effect to outside personnel's protection.

Preferably, the front end of the upper rail is fixedly provided with three uniformly distributed high-voltage terminals, the lower part of each high-voltage terminal is connected with a high-voltage connecting wire, and the high-voltage connecting wires are connected with the high-voltage coils and the low-voltage coils.

Through above-mentioned technical scheme, can carry by the electric current through the high-voltage connection line, guarantee going on of alternating voltage, electric current and impedance work.

Preferably, a placing plate is welded outside the lower rail, a plurality of fans are uniformly distributed on the top of the placing plate, and the fans are connected in parallel.

Through above-mentioned technical scheme, can place the fan and fix through placing the board, can extract and discharge the outside to the heat through the rotation of fan, reduce the inside temperature of transformer.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, can absorb the sound that the iron core produced when work and vibration through the cyanamide, can effectual reduction output volume decibel, can carry out the secondary absorption to the noise of iron core inside transport once more through plant fiber, can effectually reduce the volume and export outside volume, can play the effect to outside personnel's protection, adopt the absorbent effect of dual sound can effectively increase the noise absorbing decibel, reduce the outflow of sound.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the iron core of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the protective layer of the present invention;

fig. 4 is a schematic diagram of the cross-sectional structure of the middle coil of the present invention.

In the drawings, the names of the parts corresponding to the reference numerals are as follows:

1. an upper rail; 12. an iron core; 121. a protective layer; 1211. an epoxy resin; 1212. a phenolic resin; 1213. melamine; 13. a high-voltage coil; 131. a wire; 132. a high-quality copper foil; 133. an insulating layer; 134. plant fibers; 14. a high voltage terminal; 15. a high voltage connection line; 16. a low-voltage coil; 2. lowering the rail; 21. placing the plate; 22. a fan.

Detailed Description

The present invention will be further described with reference to the following drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples.

Example 1

As shown in fig. 1, the dry-type transformer includes an upper rail 1, three uniformly distributed iron cores 12 fixedly mounted below the upper rail 1, and a lower rail 2 welded below the iron cores 12, wherein the number of the iron cores 12 is three, two high-voltage coils 13 are sleeved outside the iron cores 12, low-voltage coils 16 are sleeved outside the iron cores 12, three uniformly distributed high-voltage terminals 14 are fixedly mounted at the front end of the upper rail 1, a high-voltage connection line 15 is connected below the high-voltage terminals 14, the high-voltage connection line 15 is connected with the high-voltage coils 13 and the low-voltage coils 16, a placing plate 21 is welded outside the lower rail 2, a plurality of fans 22 are uniformly distributed at the top of the placing plate 21, and the plurality of fans 22 are connected in parallel.

The device is taken out and can be installed, then the transformer is enabled to work, when working, current can flow to the inside of the low-voltage coil 16, then the current can enter the inside of the high-voltage terminal 14 through the high-voltage connecting wire 15 and flow to the inside of the high-voltage coil 13, the high-voltage coil 13 and the low-voltage coil 16 can adjust alternating voltage, current and impedance in the flowing process, meanwhile, the iron core 12 can vibrate and drive the high-voltage coil 13 and the low-voltage coil 16 to vibrate in the flowing process of the current, noise is generated, when the temperature in the transformer is too high, the fan 22 is started, the fan 22 can rotate, heat in the transformer is extracted and discharged to the outside of the transformer, the temperature in the transformer is guaranteed not to be too high, and the coil protection effect is achieved.

In this embodiment, the iron core 12 can effectively enhance the magnetic coupling between the two coils, and ensure the conversion operation.

Example 2

Referring to fig. 2 to 4, a protective layer 121 is disposed outside the iron core 12, the protective layer 121 includes an epoxy resin 1211, a phenolic resin 1212 disposed below the epoxy resin 1211, and melamine 1213 disposed below the phenolic resin 1212, the high-voltage coil 13 and the low-voltage coil 16 ensure that a high-quality copper foil 132 and an insulating layer 133 sleeved outside the high-quality copper foil 132 are disposed outside the lead 131, and a plant fiber 134 is sleeved outside the insulating layer 133.

In the process of vibration of the iron core 12, the high-voltage coil 13 and the low-voltage coil 16, sound generated by the iron core 12 during working and vibration can be absorbed through the cyanamide, the decibel of the output volume can be effectively reduced, noise conveyed inside the iron core 12 can be secondarily absorbed through the plant fibers 134, the volume output to the outside can be effectively reduced, the effect of protecting external personnel can be achieved, the corrosion resistance of the iron core 12 can be improved through casting the epoxy resin 1211 at the iron core 12, damage to the surface of the iron core 12 due to external factors can be reduced, the service life of the iron core 12 is prolonged, the decibel of the noise absorption can be effectively increased through the double sound absorption effect, and the outflow of sound is reduced.

In the concrete implementation process, the equipment is taken out and can be installed, then the transformer is enabled to work, when in work, current flows to the inside of the low-voltage coil 16, then the current enters the inside of the high-voltage terminal 14 through the high-voltage connecting wire 15 and flows to the inside of the high-voltage coil 13, the alternating voltage, the current and the impedance are adjusted by the high-voltage coil 13 and the low-voltage coil 16 in the flowing process, meanwhile, the iron core 12 vibrates and drives the high-voltage coil 13 and the low-voltage coil 16 to vibrate in the flowing process of the current and generate noise, when the temperature in the transformer is overhigh, the fan 22 is started, the fan 22 rotates and extracts heat in the transformer and discharges the heat to the outside of the transformer, the temperature in the transformer is ensured not overhigh, the coil protection effect is achieved, and in the vibrating process of the iron core 12, the high-voltage coil 13 and the low-voltage coil 16, can absorb the sound that iron core 12 produced when work and vibration through the cyanamide, the decibel of output volume can be effectual reduced, noise that can carry out the secondary absorption to the inside transport of iron core 12 once more through vegetable fibre 134, can effectually reduce the volume and export outside volume, can play the effect to outside personnel's protection, can increase the corrosion resistance of iron core 12 itself through casting epoxy 1211 in iron core 12 department, can reduce because of the harm of external factor to iron core 12 surface, increase the life of iron core 12, adopt the effect of dual sound absorption can effectively increase the decibel to the noise absorption, reduce the outflow of sound.

According to the above embodiment, alright realize the utility model discloses well. It is worth to say that, on the premise of the above structural design, in order to solve the same technical problem, even if some insubstantial changes or retouching are made in the utility model, the essence of the adopted technical scheme is still the same as the utility model, so it should be in the protection scope of the utility model.

Claims

1. A dry-type transformer comprises an upper rail (1), an iron core (12) fixedly arranged below the upper rail (1) and uniformly distributed, and a lower rail (2) welded below the iron core (12), and is characterized in that: a protective layer (121) is arranged outside the iron core (12), and the protective layer (121) comprises epoxy resin (1211), phenolic resin (1212) arranged below the epoxy resin (1211) and melamine (1213) arranged below the phenolic resin (1212).

2. A dry-type transformer as claimed in claim 1, wherein: the iron core (12) is provided with three, two the outside of iron core (12) has cup jointed high voltage coil (13), iron core (12) outside has cup jointed low voltage coil (16).

3. A dry-type transformer as claimed in claim 2, wherein: the high-voltage coil (13) and the low-voltage coil (16) ensure that a high-quality copper foil (132) and an insulating layer (133) sleeved outside the high-quality copper foil (132) are arranged outside the lead (131), and plant fibers (134) are sleeved outside the insulating layer (133).

4. A dry-type transformer as claimed in claim 2, wherein: go up the front end fixed mounting of rail (1) has high-voltage terminal (14) of three equipartition, the below of high-voltage terminal (14) is connected with high-voltage connection line (15), high-voltage connection line (15) with high-voltage coil (13) and low-voltage coil (16) are connected.

5. A dry-type transformer as claimed in claim 1, wherein: a placing plate (21) is welded outside the lower rail (2), a plurality of fans (22) are uniformly distributed at the top of the placing plate (21), and the fans (22) are connected in parallel.