High-voltage dry-type transformer with good heat dissipation performance

Abstract

The utility model discloses a high-voltage dry-type transformer with good heat dissipation performance, which comprises an outer box, two top grooves are arranged at the top of the outer box and are symmetrically distributed at the top of the outer box, and a plurality of filter grooves are arranged on the front side wall and the rear side wall in the outer box. By arranging the outer box, the top groove, the filtering groove, the refrigerating machine, the top plate, the first filtering net, the second filtering net and the handle, the outer box is additionally arranged on the high-voltage dry-type transformer, the safety of the high-voltage dry-type transformer is improved, the refrigerating machine is arranged on the outer box, powerful refrigeration is formed in the high-voltage dry-type transformer, and the heat dissipation efficiency of the high-voltage dry-type transformer is improved. Meanwhile, two layers of filter screens are arranged between the high-voltage dry-type transformer and the refrigerating machine, cold air entering the high-voltage dry-type transformer is filtered in a multi-layer mode, impurities in the air are prevented from blocking a heat dissipation channel, the filter device is detachable, and the filter screens are convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type transformers, in particular to a high-voltage dry-type transformer with good heat dissipation performance. Background Art

[0002] High voltage dry-type transformer is a special type of transformer that uses solid insulation material instead of traditional liquid insulation, so there is no need to worry about liquid leakage or fire risk. The main features of this transformer include small size, light weight, simple and compact structure, and easy maintenance and use.

[0003] In existing high-voltage dry-type transformers, the cooling method is generally to dissipate heat from the transformer through a fan thereon, but this method has poor heat dissipation efficiency and is easily reduced or even fails to dissipate heat due to blockage of the internal air duct. Utility Model Content

[0004] The utility model aims to provide a high-voltage dry-type transformer with good heat dissipation performance. An outer box is added to the high-voltage dry-type transformer to increase the safety of the high-voltage dry-type transformer, and a refrigerator is arranged on the outer box to form strong cooling for the interior, thereby improving the heat dissipation efficiency of the high-voltage dry-type transformer. At the same time, two layers of filter screens are arranged between the high-voltage dry-type transformer and the refrigerator to perform multi-layer filtering on the cold air entering the high-voltage dry-type transformer to avoid impurities in the air from clogging the heat dissipation channel. Moreover, the filter device is detachable to facilitate cleaning of the filter screen. The insulating layer of the high-voltage dry-type transformer is a mica board, which has good high-temperature resistance, thermal conductivity and insulation performance, and can quickly transfer the temperature on the winding to the outside to improve the heat dissipation efficiency.

[0005] To achieve the above-mentioned purpose, a high-voltage dry-type transformer with good heat dissipation performance is provided, comprising: an outer box, a top groove is arranged on the top of the outer box, the number of the top grooves is arranged in two, and they are symmetrically distributed on the top of the outer box, filter grooves are arranged on the front and rear side walls inside the outer box, the number of the filter grooves is arranged in multiple, and they are symmetrically distributed on the front and rear inner walls of the outer box, a base is fixedly connected to the inner bottom surface of the outer box, a refrigerator is fixedly connected to the right side wall of the outer box, the number of the refrigerators is arranged in two, and they are symmetrically distributed on the left and right side walls of the outer box, a high-voltage dry-type transformer body is fixedly connected to the top of the base, the high-voltage dry-type transformer body comprises an iron core, a low-voltage winding, an insulating layer, a high-voltage winding and a shell, a low-voltage winding is arranged on the circumferential surface of the iron core, and an insulating layer is arranged on the circumferential surface of the low-voltage winding, The insulating layer is a mica board, a high-voltage winding is arranged on the outer side of the insulating layer, an air duct is arranged between the insulating layer and the high-voltage winding, a shell is arranged on the circumferential surface of the high-voltage winding, a fan is fixedly connected to the rear side wall of the base, an air outlet of the fan is fixedly connected to an air inlet pipe, a plurality of fans and air inlet pipes are arranged and are symmetrically distributed on the front and rear sides of the shell, a thermometer and an air outlet pipe are fixedly connected to the top of the shell, a filter device is arranged inside the top groove, the filter device comprises a top plate, a first filter screen, a second filter screen and a handle, a first filter screen and a second filter screen are fixedly connected to the bottom of the top plate, the first filter screen is close to the refrigerator, the mesh number of the second filter screen is twice that of the first filter screen, a handle is fixedly connected to the top of the top plate, and two filter devices are arranged.

[0006] According to the high-voltage dry-type transformer with good heat dissipation performance, the first filter screen and the second filter screen are both clamped inside the filter tank.

[0007] According to the high-voltage dry-type transformer with good heat dissipation performance, the number of the high-voltage dry-type transformer bodies is two and they are symmetrically distributed on the base.

[0008] According to the high-voltage dry-type transformer with good heat dissipation performance, the thermometer and the bottom of the air outlet pipe are both located inside the air duct.

[0009] According to the high-voltage dry-type transformer with good heat dissipation performance, the air inlet pipe is connected with the air duct.

[0010] According to the high-voltage dry-type transformer with good heat dissipation performance, the refrigerator is connected to the outer box through-connection.

[0011] The above scheme has the following beneficial effects:

[0012] 1. By setting an outer box, a top tank, a filter tank, a refrigerator, a top plate, a first filter, a second filter and a handle, an outer box is added to the high-voltage dry-type transformer to increase the safety of the high-voltage dry-type transformer, and a refrigerator is set on the outer box to form a strong cooling inside to improve the heat dissipation efficiency of the high-voltage dry-type transformer. At the same time, two layers of filters are set between the high-voltage dry-type transformer and the refrigerator to perform multi-layer filtration on the cold air entering the high-voltage dry-type transformer to prevent impurities in the air from clogging the heat dissipation channel, and the filter device is detachable, which is convenient for cleaning the filter;

[0013] 2. By setting the insulating layer, the insulating layer mica board, the mica board has good high temperature resistance, thermal conductivity and insulation performance, which can quickly transfer the temperature on the winding to the outside and improve the heat dissipation efficiency.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a front view of a high-voltage dry-type transformer with good heat dissipation performance according to the utility model;

[0017] Figure 2 This is a cross-sectional view of the outer box of a high-voltage dry-type transformer with good heat dissipation performance according to the utility model;

[0018] Figure 3 This is a structural diagram of a high-voltage dry-type transformer body of a high-voltage dry-type transformer with good heat dissipation performance according to the utility model;

[0019] Figure 4 A cross-sectional view of a high-voltage dry-type transformer of the utility model having good heat dissipation performance;

[0020] Figure 5 The utility model is a structural diagram of a filter device of a high-voltage dry-type transformer with good heat dissipation performance.

[0021] Legend:

[0022] 1. Outer box; 2. Top slot; 3. Filter slot; 5. Base; 6. Refrigerator; 7. High-voltage dry-type transformer body; 8. Iron core; 9. Low-voltage winding; 10. Insulation layer; 11. High-voltage winding; 12. Outer shell; 13. Fan; 14. Inlet pipe; 15. Thermometer; 16. Outlet pipe; 17. Top plate; 18. First filter; 19. Second filter; 20. Handle. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-5 The utility model embodiment is a high-voltage dry-type transformer with good heat dissipation performance, which includes: an outer box 1, a top groove 2 is arranged on the top of the outer box 1, the number of the top grooves 2 is arranged to be two, and they are symmetrically distributed on the top of the outer box 1, a filter groove 3 is arranged on the front and rear side walls of the inner part of the outer box 1, the number of the filter grooves 3 is arranged to be multiple, and they are symmetrically distributed on the front and rear inner walls of the outer box 1, a base 5 is fixedly connected to the inner bottom surface of the outer box 1, a refrigerator 6 is fixedly connected to the right side wall of the outer box 1, the number of the refrigerator 6 is arranged to be two, and they are symmetrically distributed on the left and right side walls of the outer box 1, the refrigerator 6 is connected to the outer box 1 through, and the base 5 A high-voltage dry-type transformer body 7 is fixedly connected to the top of the base 5. The number of high-voltage dry-type transformer bodies 7 is set to two and symmetrically distributed on the base 5. The high-voltage dry-type transformer body 7 includes an iron core 8, a low-voltage winding 9, an insulating layer 10, a high-voltage winding 11 and a shell 12. A low-voltage winding 9 is arranged on the circumferential surface of the iron core 8, and an insulating layer 10 is arranged on the circumferential surface of the low-voltage winding 9. The insulating layer 10 is a mica board. A high-voltage winding 11 is arranged on the outside of the insulating layer 10. An air duct is arranged between the insulating layer 10 and the high-voltage winding 11. The circumferential surface of the high-voltage winding 11 is provided with a shell 12. The rear side wall of the base 5 is fixedly connected to the high-voltage dry-type transformer body 7. A fan 13 is connected, and an air inlet pipe 14 is fixedly connected to the air outlet of the fan 13. The number of fans 13 and air inlet pipes 14 is set in multiple and symmetrically distributed on the front and rear sides of the shell 12. The air inlet pipe 14 is connected to the air duct. A thermometer 15 and an air outlet pipe 16 are fixedly connected to the top of the shell 12. The bottoms of the thermometer 15 and the air outlet pipe 16 are both located inside the air duct. The thermometer 15 is used to monitor the internal working temperature, and the air outlet pipe 16 is used to discharge the high-temperature gas of the wind part. A filter device is arranged inside the top groove 2, and the filter device includes a top plate 17, a first filter screen 18, a second filter screen 19 and a handle 20. The top plate 17 is fixedly connected to the top of the shell 12. A first filter 18 and a second filter 19 are fixedly connected to the bottom. The first filter 18 is close to the refrigerator 6. The mesh number of the second filter 19 is twice that of the first filter 18. They filter the incoming air respectively to filter out impurities in the air to avoid clogging the internal heat dissipation channel. The first filter 18 and the second filter 19 are both snap-fitted into the interior of the filter tank 3 to fix the filtering device. A handle 20 is fixedly connected to the top of the top plate 17. By pulling up the handle 20, the first filter 18 and the second filter 19 can be taken out and cleaned to ensure a good filtering function. There are two filter devices.

[0025] Working principle: When the high-voltage dry-type transformer 7 is working, the low-voltage winding 9 and the high-voltage winding 11 generate high temperature, the insulating layer 11 transfers the heat generated by the low-voltage winding 9 to the outside, the refrigerator 6 and the fan 13 work, the refrigerator 6 cools the outside air and discharges it into the outer box 1, after being filtered by the first filter 18 and the second filter 19, the fan 13 injects it into the internal air duct of the high-voltage dry-type transformer 7 through the air inlet pipe 14, and after cooling the inside, it is discharged from the outer box 1 through the air outlet pipe 16.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A high-voltage dry-type transformer with good heat dissipation performance, characterized in that: include: An outer box (1), wherein a top groove (2) is provided on the top of the outer box (1), the number of the top grooves (2) is two and symmetrically distributed on the top of the outer box (1), the front and rear side walls of the inner part of the outer box (1) are provided with filter grooves (3), the number of the filter grooves (3) is multiple and symmetrically distributed on the front and rear inner walls of the outer box (1), the inner bottom surface of the outer box (1) is fixedly connected to a base (5), the right side wall of the outer box (1) is fixedly connected to a refrigerator (6), the number of the refrigerator (6) is two, The base (5) is symmetrically distributed on the left and right side walls of the outer box (1); the top of the base (5) is fixedly connected to a high-voltage dry-type transformer body (7); the high-voltage dry-type transformer body (7) comprises an iron core (8), a low-voltage winding (9), an insulating layer (10), a high-voltage winding (11) and a shell (12); the low-voltage winding (9) is arranged on the circumferential surface of the iron core (8); the insulating layer (10) is arranged on the circumferential surface of the low-voltage winding (9); the insulating layer (10) is a mica board; the high-voltage winding is arranged on the outer side of the insulating layer (10); (11), an air duct is provided between the insulating layer (10) and the high-voltage winding (11), a shell (12) is provided on the circumferential surface of the high-voltage winding (11), a fan (13) is fixedly connected to the rear side wall of the base (5), an air outlet of the fan (13) is fixedly connected to an air inlet pipe (14), a plurality of fans (13) and air inlet pipes (14) are provided and symmetrically distributed on the front and rear sides of the shell (12), a thermometer (15) and an air outlet pipe (16) are fixedly connected to the top of the shell (12), and the top A filter screen device is arranged inside the tank (2), and the filter screen device comprises a top plate (17), a first filter screen (18), a second filter screen (19) and a handle (20). The bottom of the top plate (17) is fixedly connected with the first filter screen (18) and the second filter screen (19). The first filter screen (18) is close to the refrigerator (6). The mesh number of the second filter screen (19) is twice that of the first filter screen (18). The top of the top plate (17) is fixedly connected with the handle (20). There are two filter screen devices.

2. A high-voltage dry-type transformer with good heat dissipation performance according to claim 1, characterized in that: The first filter screen (18) and the second filter screen (19) are both clamped inside the filter tank (3).

3. A high-voltage dry-type transformer with good heat dissipation performance according to claim 1, characterized in that: The number of the high-voltage dry-type transformer bodies (7) is two and they are symmetrically distributed on the base (5).

4. A high-voltage dry-type transformer with good heat dissipation performance according to claim 1, characterized in that: The bottoms of the thermometer (15) and the air outlet pipe (16) are both located inside the air duct.

5. A high-voltage dry-type transformer with good heat dissipation performance according to claim 1, characterized in that: The air inlet pipe (14) is connected to the air duct.

6. A high-voltage dry-type transformer with good heat dissipation performance according to claim 1, characterized in that: The refrigerator (6) is connected to the outer box (1).

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