CN216849562U

CN216849562U - Dry-type transformer

Info

Publication number: CN216849562U
Application number: CN202220358822.7U
Authority: CN
Inventors: 贾丙华
Original assignee: Hubei Xinyaoda Electric Co ltd
Current assignee: Hubei Xinyaoda Electric Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-06-28
Anticipated expiration: 2032-02-22

Abstract

The utility model provides a dry-type transformer, includes the transformer body, the transformer body includes high-voltage winding and low-voltage winding, the outside of high-voltage winding bottom is equipped with first annular air duct, is equipped with a plurality of vertical ascending air nozzles on first annular air duct, and first annular air duct is connected with the fan. The utility model provides a dry-type transformer sets up the round air outlet in the bottom outside of coil winding to set up the air outlet between the high-voltage winding of transformer and low voltage winding, the accurate heat dissipation of drying takes away the heat, compares with traditional bottom fan, and the useless work of reduction has practiced thrift the energy consumption, and sets up the exhaust fan at the top of transformer case, and the hot-air of quick discharge has further improved the radiating efficiency.

Description

Dry-type transformer

Technical Field

The utility model relates to a transformer technical field, especially a dry-type transformer.

Background

The dry type transformer does not have transformer heat dissipation oil and cooling fins, and most of the dry type transformers adopt the fan 50 adopted in the dry type transformer disclosed by the authorized publication number of CN202736656U to blow air upwards at the bottom of one side of the dry type transformer coil, but the heat dissipation mode has low heat dissipation efficiency and high energy consumption and cannot perform accurate cooling.

Disclosure of Invention

The utility model aims to solve the technical problem that a dry-type transformer is provided, accurate improvement dry-type transformer's radiating efficiency.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a dry-type transformer, includes the transformer body, the transformer body includes high-voltage winding and low-voltage winding, the outside of high-voltage winding bottom is equipped with first annular air duct, is equipped with a plurality of vertical ascending air nozzles on first annular air duct, and first annular air duct is connected with the fan.

Preferably, the bottom in the clearance that high voltage winding and low voltage winding formed is equipped with second annular air duct, and second annular air duct passes through communicating pipe and first annular air duct intercommunication, evenly is equipped with a plurality of vertical ascending air nozzles on second annular air duct.

Preferably, the number of the communicating pipes is two, and the two communicating pipes are arranged oppositely.

Preferably, the fans are arranged on two sides of the transformer body, air is supplied into the first annular air guide pipe from two opposite directions, and the fans are connected with the first annular air guide pipe through the air guide pipes.

Preferably, still include the transformer case, the transformer body is located in the transformer case, is equipped with the exhaust fan at the top of transformer case, and the exhaust fan corresponds with the winding of transformer, locates directly over the winding.

Preferably, the side wall of the transformer box is provided with an air inlet.

Preferably, a filter screen is arranged in the air inlet.

The utility model provides a dry-type transformer sets up the round air outlet in the bottom outside of coil winding to set up the air outlet between the high-voltage winding of transformer and low voltage winding, the accurate heat dissipation of drying takes away the heat, compares with traditional bottom fan, and the useless work of reduction has practiced thrift the energy consumption, and sets up the exhaust fan at the top of transformer case, and the hot-air of quick discharge has further improved the radiating efficiency.

Drawings

The invention will be further described with reference to the following drawings and examples:

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

fig. 2 is a schematic structural diagram of the bottom of the transformer winding of the present invention;

fig. 3 is a bottom view of the transformer winding bottom of the present invention;

FIG. 4 is a schematic structural view of the first and second annular gas-guide tubes of the present invention;

fig. 5 is a schematic structural view of the transformer body of the present invention installed in the transformer box;

fig. 6 is the external structure schematic diagram of the transformer box of the present invention.

Detailed Description

As shown in fig. 1-2, a dry-type transformer comprises a transformer body, the transformer body comprises a high-voltage winding 1 and a low-voltage winding 2, a first annular air duct 3 is arranged on the outer side of the bottom of the high-voltage winding 1, a plurality of vertically upward air nozzles 4 are arranged on the first annular air duct 3, and the first annular air duct 3 is connected with a fan 5. The bottom outside the high-voltage winding 1 is provided with a plurality of air nozzles, so that the surface of the high-voltage winding 1 is rapidly cooled, the air speed is improved, and heat is rapidly taken away.

Preferably, as shown in fig. 2-4, a second annular gas-guide tube 6 is arranged at the bottom of a gap formed by the high-voltage winding 1 and the low-voltage winding 2, the second annular gas-guide tube 6 is communicated with the first annular gas-guide tube 3 through a communicating tube 7, and a plurality of vertically upward air nozzles 4 are uniformly arranged on the second annular gas-guide tube 6. Airflow is formed at the gap between the first annular air duct 3 and the second annular air duct 6, and heat is rapidly taken away.

Preferably, two communicating pipes 7 are provided, and the two communicating pipes 7 are arranged oppositely.

Preferably, the fans 5 are arranged on two sides of the transformer body and supply air to the first annular air duct 3 from two opposite directions, and the fans 5 are connected with the first annular air duct 3 through air ducts 8.

Preferably, as shown in fig. 5 and 6, the transformer further includes a transformer box 9, the transformer body is disposed in the transformer box 9, an exhaust fan 10 is disposed on the top of the transformer box 9, and the exhaust fan 10 corresponds to the winding of the transformer and is disposed right above the winding.

Preferably, the side wall of the transformer tank 9 is provided with an air inlet 11.

Preferably, a filter screen is arranged in the air inlet 11. Dust and impurities entering the transformer tank are filtered.

The utility model discloses when using, reduced the area of upwards blowing, reduced idle work to form by supreme quick convection current down in the transformer box, can take away the heat rapidly.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. The utility model provides a dry-type transformer, includes the transformer body, the transformer body includes high voltage winding (1) and low voltage winding (2), its characterized in that: the outer side of the bottom of the high-voltage winding (1) is provided with a first annular air duct (3), a plurality of vertically upward air nozzles (4) are arranged on the first annular air duct (3), and the first annular air duct (3) is connected with a fan (5).

2. A dry-type transformer as claimed in claim 1, wherein: the bottom in the clearance that high voltage winding (1) and low voltage winding (2) formed is equipped with second annular air duct (6), and second annular air duct (6) are through communicating pipe (7) and first annular air duct (3) intercommunication, evenly are equipped with a plurality of vertical ascending air nozzles (4) on second annular air duct (6).

3. A dry-type transformer as claimed in claim 2, wherein: the two communicating pipes (7) are arranged, and the two communicating pipes (7) are arranged oppositely.

4. A dry-type transformer as claimed in claim 1, wherein: the two sides of the transformer body are arranged with the fans (5), the fans supply air to the first annular air duct (3) from two opposite directions, and the fans (5) are connected with the first annular air duct (3) through air ducts (8).

5. A dry-type transformer as claimed in claim 1 or 2, wherein: still include transformer case (9), in transformer case (9) was located to the transformer body, be equipped with exhaust fan (10) at the top of transformer case (9), exhaust fan (10) are corresponding with the winding of transformer, locate the winding directly over.

6. Dry-type transformer according to claim 5, characterized in that: and an air inlet (11) is formed in the side wall of the transformer box (9).

7. A dry-type transformer as claimed in claim 6, wherein: a filter screen is arranged in the air inlet (11).