CN113223833A

CN113223833A - Fast-assembling fusion tube type voltage transformer that uses under harsh environment

Info

Publication number: CN113223833A
Application number: CN202110672665.7A
Authority: CN
Inventors: 叶飞; 淘红华; 李勋; 钟声; 周键科; 孙杰; 许催; 祝祺
Original assignee: Zhejiang Horizon Transformer Co ltd; Zhoushan Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Current assignee: Zhejiang Horizon Transformer Co ltd; Zhoushan Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-08-06

Abstract

The invention is suitable for the technical field of transformers, and provides a fast-assembling fusion tube type voltage transformer used in a harsh environment, which comprises a three-phase voltage transformer; a fusion tube is arranged at the top of the three-phase voltage transformer; a silica gel cap is arranged on one side of the fusion tube, and the fusion tube is detachably connected with the silica gel cap; and a shielding net is arranged in the fusion tube and is connected with the fusion tube. By arranging the fusion tube and the silica gel cap, a user can disassemble the silica gel cap to disassemble and assemble the fuse in the fusion tube; through the insulation and the sealing of silicone grease and the sealing of a silicone cap, the leakage of ionization is effectively blocked, and the generation of creepage is prevented, so that the device can be used in high-pollution-level and severe salt fog areas, the difference of different use environments in domestic areas is solved, and the device can be used as a general product.

Description

Fast-assembling fusion tube type voltage transformer that uses under harsh environment

Technical Field

The invention belongs to the technical field of transformers, and particularly relates to a fast-assembling fusion tube type voltage transformer used in a harsh environment.

Background

The basic structure of a voltage transformer is similar to that of a transformer, and the voltage transformer also has two windings, one is called a primary winding and the other is called a secondary winding. Both windings are mounted or wound on the core. Insulation is arranged between the two windings and between the windings and the iron core, so that the two windings and between the windings and the iron core are electrically isolated.

The current voltage transformer is designed according to the pollution grade, and the creepage requirement of a serious pollution place is not considered on the structure. After the transformer runs for a long time in coastal areas or other harsh environments, conductive substances are accumulated on the surface of the transformer, so that creepage discharge of products is caused due to insufficient insulation distance, and the transformer is damaged.

Disclosure of Invention

The invention provides a fast-assembly fused tube type voltage transformer used in a harsh environment, and aims to solve the problem that the conventional voltage transformer is designed according to pollution grades, and the creepage requirement of a severe pollution place is not considered on the structure. After the transformer runs for a long time in coastal areas or other harsh environments, conductive substances are accumulated on the surface of the transformer, so that creepage discharge is caused to the product due to insufficient insulation distance, and the transformer is damaged.

The invention is realized in this way, a fast-assembling fusion tube type voltage transformer used in harsh environment, including three-phase voltage transformer; a fusion tube is arranged at the top of the three-phase voltage transformer; a silica gel cap is arranged on one side of the fusion tube, and the fusion tube is detachably connected with the silica gel cap; and a shielding net is arranged in the fusion tube and is connected with the fusion tube.

Preferably, the outer wall of the silica gel cap is provided with a bandage.

Preferably, one end of the melting tube is provided with a melting tube opening; the top of the molten pipe orifice is provided with a vertical blocking orifice, and the bottom of the molten pipe orifice is provided with a taper inclined plane; the fusion tube is matched with the silica gel cap.

Preferably, the outer wall of the fusion tube is coated with silicone grease.

Preferably, a cable socket is arranged on the side wall of the three-phase voltage transformer and connected with the three-phase voltage transformer.

Preferably, the three-phase voltage transformer comprises a cast body; an iron core is arranged in the pouring main body; a primary coil is vertically arranged on the iron core, and a secondary coil is arranged on the outer wall of the iron core.

Compared with the prior art, the invention has the beneficial effects that: by arranging the fusion tube and the silica gel cap, a user can disassemble the silica gel cap to disassemble and assemble the fuse in the fusion tube;

through insulation and sealing of silicone grease and sealing of a silicone cap, ionization leakage is effectively prevented, and creepage is prevented, so that the device can be used in high-pollution-level and severe-salt-fog areas, the difference of different using environments in domestic areas is solved, and the device can be used as a general product;

through setting up the shielding net, the design of this shielding net can even electric field, reduces the office and puts.

Drawings

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

FIG. 2 is a schematic view of the structure of the silica gel cap of the present invention mounted on a fusion tube;

FIG. 3 is an enlarged view of a portion A of the fusion tube of FIG. 2;

in the figure: 1. a three-phase voltage transformer; 11. pouring the main body; 12. an iron core; 13. a primary coil; 14. a secondary coil; 2. a shielding mesh; 3. a silica gel cap; 4. binding a belt; 5. a fusion tube; 6. a vertical resistance port; 7. a tapered bevel; 8. a cable receptacle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 2 and 3, a fast-assembling fuse tube type voltage transformer used in a harsh environment includes a three-phase voltage transformer 1; the top of the three-phase voltage transformer 1 is provided with a fusion tube 5; a silica gel cap 3 is arranged on one side of the fusion tube 5, and the fusion tube 5 is detachably connected with the silica gel cap 3; the interior of the fusion tube 5 is provided with a shielding net 2, and the shielding net 2 is connected with the fusion tube 5. The outer wall of the silica gel cap 3 is provided with a bandage 4.

In this embodiment, through setting up fusion tube 5, mountable fuse in this fusion tube 5, and fuse and fusion tube 5 can dismantle the connection, and the silica gel cap 3 is dismantled to the user's accessible, and further carries out the dismouting to the fuse. Through setting up silica gel cap 3, make silica gel cap 3 can seal fusion tube 5, effectively hinder revealing of ionization. Through setting up shielding net 2, this shielding net 2's design can the even electric field, reduces the office and puts. Through setting up ribbon 4, make ribbon 4 to 3 secondary fixed sealings of silica gel cap, improve the leakproofness of silica gel cap 3 on fusion tube 5.

Referring to fig. 1, one end of the melting tube 5 has a melting tube opening; the top of the melting tube opening is provided with a vertical choke 6, and the bottom of the melting tube opening is provided with a taper inclined plane 7; the fusion tube 5 is matched with the silica gel cap 3. The outer wall of the fusion tube 5 is coated with silicone grease. And a cable socket 8 is arranged on the side wall of the three-phase voltage transformer 1, and the cable socket 8 is connected with the three-phase voltage transformer 1. The three-phase voltage transformer 1 comprises a casting main body 11; an iron core 12 is installed inside the casting body 11; a primary coil 13 is vertically arranged on the iron core 12, and a secondary coil 14 is arranged on the outer wall of the iron core 12.

In the embodiment, the fusion tube opening adopts a taper inclined plane 7 and a vertical blocking opening 6 structure, and is provided with the insulating silica gel cap 3 with the same structure as the fusion tube 5, and the fusion tube 5 and the silica gel cap 3 are sealed through the blocking opening.

By providing a cable socket 8, an iron core 12 and a primary coil 13, wherein the high voltage cable is connected to the cable socket 8 via a plug, the cable then passes through the fusion tube 5 and is connected to the primary coil 13 again.

In conclusion, the fusion tube opening adopts a taper inclined plane 7 and a vertical blocking opening 6 structure, and is provided with the insulating silica gel cap 3 with the same structure as the fusion tube 5, the fusion tube 5 and the silica gel cap 3 are sealed through the buckle of the blocking opening, the tail end of the silica gel cap 3 is secondarily fixed and sealed by the ribbon 4, the ionization leakage is effectively blocked, and the generation of creepage is prevented, so that the device can be used in high-pollution-level and severe salt fog areas, the difference of different use environments in domestic areas is solved, and the device can be used as a general product. The electric shielding net 2 is additionally arranged on the fusion tube 5, so that the electric field in the fusion tube 5 is uniformly distributed, and the partial discharge is reduced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a fast-assembling fusion tube type voltage transformer that uses under harsh environment which characterized in that: comprises a three-phase voltage transformer (1);

a fusion tube (5) is arranged at the top of the three-phase voltage transformer (1);

a silica gel cap (3) is arranged on one side of the fusion tube (5), and the fusion tube (5) is detachably connected with the silica gel cap (3);

the inner part of the fusion tube (5) is provided with a shielding net (2), and the shielding net (2) is connected with the fusion tube (5).

2. The fast-assembling fuse tube type voltage transformer as claimed in claim 1, wherein: and a binding tape (4) is arranged on the outer wall of the silica gel cap (3).

3. The fast-assembling fuse tube type voltage transformer as claimed in claim 1, wherein: one end of the fusion tube (5) is provided with a fusion tube opening;

the top of the fused pipe orifice is provided with a vertical blocking orifice (6), and the bottom of the fused pipe orifice is provided with a tapered inclined plane (7);

the fusion tube (5) is matched with the silica gel cap (3).

4. The fast-assembling fuse tube type voltage transformer as claimed in claim 1, wherein: and silicone grease is coated on the outer wall of the fusion tube (5).

5. The fast-assembling fuse tube type voltage transformer as claimed in claim 1, wherein: the cable socket (8) is arranged on the side wall of the three-phase voltage transformer (1), and the cable socket (8) is connected with the three-phase voltage transformer (1).

6. The fast-assembling fuse tube type voltage transformer as claimed in claim 1, wherein: the three-phase voltage transformer (1) comprises a casting main body (11);

an iron core (12) is arranged in the casting main body (11);

a primary coil (13) is vertically arranged on the iron core (12), and a secondary coil (14) is arranged on the outer wall of the iron core (12).