Dry-type transformer with insulation structure

Abstract

The utility model discloses a dry-type transformer with an insulating structure, which comprises a dry-type transformer body, an insulating seat is mounted at the bottom of the dry-type transformer body in an inserting manner, and a protective cover head is mounted at the top end of the dry-type transformer body; a bottom plate is arranged at the bottom of the insulating seat, a protective cover plate covers the top end of the protective cover head, two sides of the bottom plate and the protective cover plate are respectively provided with a group of side plates in a clamping manner, and the outer side of each group of side plates is provided with a group of air bellows in a bolting manner. The dry-type transformer body is limited through an insulating base installed on the lower portion of the dry-type transformer body and a protective cover head arranged at the top end of the dry-type transformer body, and limiting rubber plates on the outer sides of the insulating base and the protective cover head are connected with a second connecting plate, so that the situation of electric leakage can be better avoided; meanwhile, the access doors on the two sides are used for conducting sealing protection on the dry-type transformer body, and the situation that the dry-type transformer body leaks electric arcs to damage the surrounding environment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type transformers, in particular to a dry-type transformer with an insulating structure. Background Technique

[0002] A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. In electrical equipment and radio circuits, it is commonly used for functions such as stepping up or down the voltage, impedance matching, and safety isolation. Currently, the core of the existing dry-type transformer is made by shearing and stacking grain-oriented cold-rolled silicon steel sheets. The safe operation and service life of the dry-type transformer largely depend on the safety and reliability of the insulation of the transformer winding. The destruction of the insulation caused by the winding temperature exceeding the insulation tolerance temperature is one of the main reasons for the abnormal operation of the transformer.

[0003] According to the authorized announcement number CN 205789397 U, a dry-type transformer is disclosed. The purpose of the utility model is to design a dry-type transformer with a reasonable structure, high usage efficiency, and low noise. A dry-type transformer includes a transformer body, and a nitrile rubber plate is provided between the transformer body and the bracket; grid plates are arranged between the inner and outer layers and between the layers of the windings in the transformer; the alloy core in the transformer body is a seven-layer connection structure. The dry-type transformer produced by the structure of the utility model has more stable performance and can greatly reduce the dry-type transformer.

[0004] In the prior art, no additional insulating equipment is provided during use, and no treatment device for the relatively high temperature during the operation of the dry-type transformer is provided. Therefore, a dry-type transformer with an insulating structure is now needed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a dry-type transformer with an insulating structure, which limits the dry-type transformer body by setting an insulating seat and a protective cover head, and ensures the insulating effect of the device through the insertion of a limiting rubber plate and a second connecting plate, and the protection of the bottom plate and the protective cover plate, so as to solve the technical problems mentioned in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A dry-type transformer with an insulating structure includes a dry-type transformer body, an insulating seat is inserted and installed at the bottom of the dry-type transformer body, and a protective cover head is installed at the top of the dry-type transformer body;

[0007] A bottom plate is arranged at the bottom of the insulating seat, a protective cover plate is covered on the top of the protective cover head, a group of side plates are respectively clamped and installed on both sides of the bottom plate and the protective cover plate, and a group of air boxes are bolted and installed on the outside of each group of side plates;

[0008] A group of third connecting plates are respectively arranged on the other two sides of the bottom plate and the protective cover plate.

[0009] Preferably, a limiting groove is formed at the bottom of the dry-type transformer body, the insulating seat is inserted into the limiting groove, and two groups of limiting rubber plates are respectively installed on the outer arc surfaces of the insulating seat and the protective cover head.

[0010] Preferably, a placing plate is fixedly installed at the top end of the bottom plate, each insulating seat is installed in contact with the surface of the placing plate, an air exchange window is installed through the placing plate corresponding to the inside of the protective cover head, and the air exchange window extends into the protective cover head for plug-in installation.

[0011] Preferably, two groups of first connecting plates are respectively installed on the corresponding sides of the two side plates, and the first connecting plate and the third connecting plate are bolted and installed.

[0012] Preferably, a group of second connecting plates are respectively installed on the upper and lower sides of each third connecting plate, insulating bumps are adhered to the inner walls of the second connecting plates, and the corresponding limiting rubber plates are inserted into the second connecting plates.

[0013] Preferably, a maintenance door is opened in the middle of the third connecting plate, and two groups of mounting brackets are bolted and installed on one side of the third connecting plate of the dry-type transformer body.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The dry-type transformer body is limited by the insulating seat installed at the lower part of the dry-type transformer body and the protective cover head arranged at the top of the dry-type transformer body. The limiting rubber plates on the outer sides of the insulating seat and the protective cover head are connected to the second connecting plate, which can better avoid the occurrence of electric leakage. At the same time, the maintenance doors on both sides are used to seal and protect the dry-type transformer body, preventing the arc leaked from the dry-type transformer body from causing harm to the surrounding environment.

[0016] 2. The limiting rubber plate contacts the inner wall of the insulating bump, further avoiding the occurrence of electric leakage of the dry-type transformer body. Moreover, the first connecting plate, the third connecting plate and the mounting bracket are connected, and the arc leaked can be led out through the connection of the mounting bracket with the external structure, further ensuring the safety of the dry-type transformer body during use.

[0017] 3. The dry-type transformer body is cooled by the provided air box. At the same time, the air exchange window installed at the center of the placing plate is inserted into the insulating seat, which can better quickly reduce the temperature inside the dry-type transformer body, ensure the service life of each insulating component, and improve the overall insulation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a schematic diagram of the overall structure of the present utility model disassembled;

[0020] Figure 3 Schematic exploded view of the installation structure of the second connecting plate of the present utility model;

[0021] Figure 4 Schematic view of the installation structure of the side plate of the present utility model;

[0022] Figure 5 Schematic exploded view of the installation structure of the dry-type transformer body of the present utility model;

[0023] Figure 6 Schematic view of the bottom structure of the insulating seat of the present utility model.

[0024] In the figure: 1, dry-type transformer body; 2, limit groove; 3, insulating seat; 4, protective cover head; 5, limit rubber plate; 6, bottom plate; 7, placement plate; 8, air exchange window; 9, protective cover plate; 10, side plate; 11, first connecting plate; 12, air box; 13, second connecting plate; 14, insulating bump; 15, third connecting plate; 16, inspection door; 17, mounting bracket. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] The present utility model provides: a dry-type transformer with an insulating structure, as Figures 1-6 shown, including a dry-type transformer body 1, an insulating seat 3 is inserted and installed at the bottom of the dry-type transformer body 1, and a protective cover head 4 is installed at the top of the dry-type transformer body 1; a bottom plate 6 is arranged at the bottom of the insulating seat 3, a protective cover plate 9 is covered on the top of the protective cover head 4, a group of side plates 10 are respectively clamped and installed on both sides of the bottom plate 6 and the protective cover plate 9, and a group of air boxes 12 are bolted and installed on the outside of each group of side plates 10; a group of third connecting plates 15 are respectively arranged on the other two sides of the bottom plate 6 and the protective cover plate 9.

[0027] Preferably, a limiting groove 2 is formed at the bottom of the dry-type transformer body 1. The insulating seat 3 is inserted into the limiting groove 2. Two groups of limiting rubber plates 5 are respectively installed on the outer arc surfaces of the insulating seat 3 and the protective cover head 4. The limiting groove 2 formed at the bottom of the dry-type transformer body 1 enables the insulating seat 3 to be stably inserted to limit the dry-type transformer body 1, ensuring the use stability of the dry-type transformer body 1. At the same time, the insulating seat 3 is also provided with air holes, which can cooperate with the air box 12 to dissipate heat from the dry-type transformer body 1, ensuring that the temperature during the use of the dry-type transformer body 1 can be controlled. The protective cover head 4 fitted to the top of the limiting groove 2 cooperates with the insulating seat 3 at the bottom of the dry-type transformer body 1 to limit the dry-type transformer body 1, so that the limiting rubber plates 5 can cooperate with the second connecting plate 13 to further limit the dry-type transformer body 1, thereby improving the insulation effect of the dry-type transformer body 1.

[0028] Furthermore, a placement plate 7 is fixedly installed at the top of the bottom plate 6. Each group of insulating seats 3 is installed in contact with the surface of the placement plate 7. A ventilation window 8 is installed through the placement plate 7 corresponding to the inside of the protective cover head 4. The ventilation window 8 extends into the protective cover head 4 for plug-in installation. The placement plate 7 installed at the top of the bottom plate 6 cooperates with the insulating seat 3 to ensure the stable installation and use of the dry-type transformer body 1. The ventilation window 8 installed at the top of the dry-type transformer body 1 can send out the hot air generated by the dry-type transformer body 1, and ensure that the hot air inside the dry-type transformer body 1 completes the air exchange process through the insulating seat 3 and the ventilation window 8.

[0029] Moreover, two groups of first connecting plates 11 are respectively installed on the corresponding sides of the two side plates 10. The first connecting plates 11 and the third connecting plates 15 are bolted. The bottom plate 6 and the protective cover plate 9 limit the side plates 10. The first connecting plates 11 installed on one side of the side plates 10 cooperate with the third connecting plates 15 to complete the limitation of the side plates 10. The air box 12 installed on the outside of the side plates 10 can dissipate heat from the dry-type transformer body 1 efficiently, reduce the protection of the insulating rubber structure during the use of the dry-type transformer body 1, and extend the insulation life of the dry-type transformer body 1.

[0030] It should be noted that a group of second connecting plates 13 are respectively installed on the upper and lower sides of each group of third connecting plates 15. Insulating bumps 14 are adhered to the inner walls of the second connecting plates 13. Each group of limiting rubber plates 5 is correspondingly inserted into the second connecting plates 13. The second connecting plates 13 installed on the upper and lower sides of the third connecting plates 15 cooperate with the limiting rubber plates 5, and the firmness and insulation of the insertion of the limiting rubber plates 5 are improved through the insulating bumps 14 arranged inside the second connecting plates 13. The second connecting plate 13 on the upper side of the third connecting plate 15 is in contact with the protective cover plate 9, and the second connecting plate 13 on the lower side of the third connecting plate 15 is in contact with the bottom plate 6, which can better limit the use position of the third connecting plate 15.

[0031] Specifically, a maintenance door 16 is provided in the middle of the third connecting plate 15. Two mounting brackets 17 are bolted and installed on one side of the dry-type transformer body 1 to the third connecting plate 15. The maintenance door 16 provided inside the third connecting plate 15 ensures the convenience for the staff to maintain the dry-type transformer body 1. At the same time, maintenance doors 16 are provided on both sides of the third connecting plate 15, so that the installation of the mounting brackets 17 can be selected without restriction. The extra arcs generated by the dry-type transformer body 1 can also be led out through the connection with the outside by the mounting brackets 17, further improving the insulation of the device.

[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dry-type transformer with an insulating structure, characterized in that: It includes a dry-type transformer body (1), an insulating seat (3) is inserted and installed at the bottom of the dry-type transformer body (1), and a protective cover head (4) is installed at the top of the dry-type transformer body (1); A bottom plate (6) is arranged at the bottom of the insulating seat (3), a protective cover plate (9) is covered on the top of the protective cover head (4), and a group of side plates (10) are respectively clamped and installed on both sides of the bottom plate (6) and the protective cover plate (9), and a group of air boxes (12) are bolted and installed on the outer side of each group of side plates (10); A group of third connecting plates (15) are respectively arranged on the other two sides of the bottom plate (6) and the protective cover plate (9).

2. The dry-type transformer with an insulation structure according to claim 1, wherein: A limiting groove (2) is opened at the bottom of the dry-type transformer body (1), the insulating seat (3) is inserted into the limiting groove (2), and two groups of limiting rubber plates (5) are respectively installed on the outer arc surfaces of the insulating seat (3) and the protective cover head (4).

3. A dry-type transformer with an insulating structure according to claim 2, characterized in that: A placing plate (7) is fixedly installed at the top of the bottom plate (6), each insulating seat (3) is installed in contact with the surface of the placing plate (7), and an air exchange window (8) is installed through the placing plate (7) corresponding to the inside of the protective cover head (4), and the air exchange window (8) extends into the protective cover head (4) and is inserted and installed.

4. A dry-type transformer with an insulating structure according to claim 3, characterized in that: Two groups of first connecting plates (11) are respectively installed on the corresponding sides of the two groups of side plates (10), and the first connecting plates (11) and the third connecting plates (15) are bolted and installed.

5. A dry-type transformer with an insulating structure according to claim 4, characterized in that: A group of second connecting plates (13) are respectively installed on the upper and lower sides of each group of third connecting plates (15), insulating bumps (14) are adhered to the inner walls of the second connecting plates (13), and each group of limiting rubber plates (5) are correspondingly inserted into the second connecting plates (13).

6. A dry-type transformer with an insulating structure according to claim 5, characterized in that: An inspection door (16) is opened in the middle of the third connecting plate (15), and two groups of mounting brackets (17) are bolted and installed on the third connecting plate (15) on one side of the dry-type transformer body (1).

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