Dry-type transformer

Abstract

The utility model relates to the technical field of dry-type transformers, in particular to a dry-type transformer which comprises a transformer body, a plurality of terminals are fixedly connected to the front end of the upper side of the transformer body, a plurality of junction poles are installed at the front end of the transformer body, the terminals are connected with the junction poles, and connecting blocks are fixedly connected to the top ends of the terminals. The front side of the bottom end of the connecting block is fixedly connected with a mounting block, and the front side of the terminal is inserted into the mounting block; the junction box has the beneficial effects that the junction of the junction rod and the terminal is placed in the mounting box, and the box cover is closed, so that the junction rod and the terminal can be protected, dust attachment is greatly reduced, the junction rod and the terminal can be clamped and limited, and the junction rod and the terminal cannot be loosened, and are neat, stable in connection and not prone to poor contact, and the service life of the junction rod and the terminal is prolonged. Therefore, not only is the maintenance frequency of workers reduced, but also the use efficiency is not reduced, so that the use economy is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type transformers, and specifically relates to a dry-type transformer. Background Technique

[0002] Dry-type transformers are widely used in places such as local lighting, high-rise buildings, airports, docks, CNC machinery and equipment, etc. Simply put, a dry-type transformer refers to a transformer in which the iron core and windings are not impregnated in insulating oil.

[0003] When the existing dry-type transformer is in use, the temperature of the windings inside it exceeds the insulation tolerance temperature, causing insulation damage. In order to improve the service life, a cooling fan is generally installed for heat dissipation, so as to ensure the service life of the dry-type transformer.

[0004] However, in actual use, some dry-type transformers are installed outdoors and will vibrate during operation, causing dust to adhere to the connection between the wiring rod and the terminal. If not cleaned for a long time, it will lead to poor contact between the wiring rod and the terminal. And once affected by strong vibrations from the outside, it will cause the connection between the wiring rod and the terminal to be unreliable, resulting in unstable line contact. Moreover, this will not only affect the normal use of the dry-type transformer, but also require workers to carry out maintenance, increasing the labor intensity of the workers. Content of the Utility Model

[0005] The purpose of the utility model is to provide a dry-type transformer to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A dry-type transformer includes a transformer body. A plurality of terminals are fixedly connected to the front end of the upper side of the transformer body. A plurality of wiring rods are installed at the front end of the transformer body. The terminals are connected to the wiring rods. A connection block is fixedly connected to the top end of the terminal. An installation block is fixedly connected to the front side of the bottom end of the connection block. The front side of the terminal is inserted into the interior of the installation block. The wiring rod is slidably connected to the interior of the installation block. A box cover is inserted into the left side of the installation block. A limiting block is fixedly connected to the top end of the box cover. A clamping groove is formed in the front side of the connection block. A clamping block is clamped in the interior of the clamping groove, and the clamping block penetrates through the limiting block.

[0007] Preferably, a connection groove is formed in the interior of the connection block. A rotating rod is rotatably connected to the rear side of the interior of the connection block. A pulling rope is fixedly connected to the exterior of the rotating rod. An elastic member is sleeved on the exterior of the pulling rope. A placing block is fixedly connected to the front end of the pulling rope. The placing block is fixedly connected to the rear end of the clamping block.

[0008] Preferably, a slot is provided on the left side of the mounting block, and a plurality of sealing grooves are provided on the inner wall of the slot. A plug block is fixedly connected to the right end of the box cover, and a plurality of sealing blocks are fixedly connected to the outside of the plug block.

[0009] Preferably, the limiting block is designed in an "L" shape, and the upper side of the limiting block is slidably connected to the inside of the connecting block.

[0010] Preferably, the pulling rope is slidably connected to the inside of the connecting groove, and the placing block is slidably connected to the inside of the connecting groove.

[0011] Preferably, one end of the elastic member is fixedly connected to the inner wall of the connecting groove, and the other end of the connecting groove is fixedly connected to the placing block.

[0012] Preferably, the plug block is inserted into the slot, the sealing block is slidably connected to the inside of the slot, and the sealing block is fitted to the inside of the sealing groove.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] A dry-type transformer proposed by the present utility model places the connection between the wiring rod and the terminal inside the mounting box and closes the box cover, so that not only can it be protected, greatly reducing the adhesion of dust, but also it can be clamped and limited, so that it will not loosen, making it not only clean and tidy, but also stably connected, and thus not easily in poor contact. This not only reduces the maintenance frequency of workers, but also does not reduce the use efficiency, making the use economy relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of the present utility model;

[0016] Figure 2 is a schematic structural view of the connecting block of the present utility model;

[0017] Figure 3 is the present utility model Figure 2 structural sectional view at A-A in;

[0018] Figure 4 is the present utility model Figure 2 structural sectional view at B-B in;

[0019] Figure 5 is the present utility model Figure 4 magnified view of the structure at A in;

[0020] Figure 6 is a schematic structural view of the clamping block of the present utility model.

[0021] In the figure: 1, transformer main body; 2, terminal; 3, connection block; 4, mounting block; 5, box cover; 6, limiting block; 7, card slot; 8, card block; 9, wiring rod; 10, connection groove; 11, rotating rod; 12, pulling rope; 13, elastic member; 14, placing block; 15, slot; 16, sealing groove; 17, inserting block; 18, sealing block. Detailed implementation mode

[0022] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clear, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present utility model.

[0023] Embodiment 1: Please refer to Figures 1 to 6 , the present utility model provides a technical solution: a dry-type transformer, including a transformer main body 1, a plurality of terminals 2 are fixedly connected to the front end of the upper side of the transformer main body 1, a plurality of wiring rods 9 are installed at the front end of the transformer main body 1, the terminals 2 are connected to the wiring rods 9, a connection block 3 is fixedly connected to the top end of the terminal 2, a mounting block 4 is fixedly connected to the front side of the bottom end of the connection block 3, the front side of the terminal 2 is inserted into the inside of the mounting block 4, so that the mounting block 4 can protect the terminal 2, the wiring rod 9 is slidably connected to the inside of the mounting block 4, the mounting block 4 can protect the terminal 2, a box cover 5 is inserted into the left side of the mounting block 4, the box cover 5 is used to limit the terminal 2 and the wiring rod 9, so that the connection between the terminal 2 and the wiring rod 9 is more stable, a limiting block 6 is fixedly connected to the top end of the box cover 5, the limiting block 6 is designed in an "L" shape, the upper side of the limiting block 6 is slidably connected to the inside of the connection block 3, so that the limiting block 6 can conveniently enter the inside of the connection block 3, a card slot 7 is opened on the front side of the connection block 3, a card block 8 is clamped in the inside of the card slot 7, and the card block 8 penetrates through the limiting block 6, so that the limiting block 6 is installed more stably, and further the box cover 5 limits the connection between the wiring rod 9 and the terminal 2 more stably.

[0024] After the connection rod 9 slides into the interior of the mounting block 4 and is connected to the terminal 2, by inserting the box cover 5 on the left side of the mounting block 4, the limiting block 6 can enter the interior of the connection block 3. At this time, the clamping block 8 penetrates through the limiting block 6 and is engaged with the interior of the card slot 7, so that the box cover 5 can limit the connection part of the connection rod 9 and the terminal 2, and then the connection rod 9 and the terminal 2 are connected more stably. Moreover, the mounting block 4 and the box cover 5 form a relatively sealed space, so that the adhesion of external dust to the connection part of the connection rod 9 and the terminal 2 is greatly reduced, and then it will not become loose, so that it is not only tidy but also stably connected, and then it is not easy to have poor contact. This not only reduces the maintenance frequency of workers, but also does not reduce the use efficiency, so that the use economy is relatively high.

[0025] Embodiment 2: On the basis of Embodiment 1, in order to facilitate the pulling of the clamping block 8, a connection groove 10 is opened in the interior of the connection block 3. A rotating rod 11 is rotatably connected to the rear side inside the connection block 3. The connection block 3 plays a limiting role on the rotating rod 11, so that the rotating rod 11 will not shift when rotating. A pulling rope 12 is fixedly connected to the outside of the rotating rod 11. The pulling rope 12 is slidably connected to the interior of the connection groove 10. The connection groove 10 plays a limiting role on the pulling rope 12. An elastic member 13 is sleeved on the outside of the pulling rope 12. The front end of the pulling rope 12 is fixedly connected to a placement block 14. The placement block 14 is slidably connected to the interior of the connection groove 10. The connection groove 10 plays a limiting role on the placement block 14, so that the placement block 14 will not shift when sliding. The placement block 14 is fixedly connected to the rear end of the clamping block 8. One end of the elastic member 13 is fixedly connected to the inner wall of the connection groove 10, and the other end of the connection groove 10 is fixedly connected to the placement block 14.

[0026] When it is necessary to move the clamping block 8, by rotating the rotating rod 11, the rotating rod 11 can wind the pulling rope 12, so that the pulling rope 12 can pull the placement block 14 to squeeze the elastic member 13 to deform, so that the placement block 14 can pull the clamping block 8 out of the interior of the card slot 7. On the contrary, by loosening the rotating rod 11, the elastic member 13 can perform a reset movement, so that the elastic member 13 can push the placement block 14 forward, so that the placement block 14 can push the clamping block 8 to penetrate through the limiting block 6 and be engaged with the interior of the card slot 7.

[0027] Embodiment 3: On the basis of Embodiment 2, in order to achieve better connection tightness between the mounting block 4 and the box cover 5, a slot 15 is provided on the left side of the mounting block 4, and a plurality of sealing grooves 16 are provided on the inner wall of the slot 15. The right end of the box cover 5 is fixedly connected with an insertion block 17, and the insertion block 17 is inserted into the slot 15, so as to seal the joint between the mounting block 4 and the box cover 5. A plurality of sealing blocks 18 are fixedly connected to the outside of the insertion block 17, and the sealing blocks 18 are slidably connected to the inside of the slot 15. The slot 15 plays a limiting role on the sealing blocks 18, so that the sealing blocks 18 can slide smoothly. The sealing blocks 18 are fitted to the inside of the sealing grooves 16, so that the connection between the insertion block 17 and the sealing grooves 16 is more tortuous, and thus the sealing effect is better.

[0028] After the mounting block 4 is fitted with the box cover 5, the insertion block 17 can slide into the slot 15, and then the sealing block 18 can slide into the slot 15. After the insertion block 17 is fitted to the inner wall of the slot 15, the sealing block 18 can perform a reset movement, and then the sealing block 18 can enter the sealing groove 16, so that the sealing block 18 can be fitted to the inside of the sealing groove 16, and then the connection tightness between the insertion block 17 and the slot 15 is better, and further reduce the adhesion of dust to the connection between the wiring rod 9 and the terminal 2.

[0029] In actual use, by rotating the rotating rod 11, the rotating rod 11 can wind the pulling rope 12, so that the pulling rope 12 can pull the placing block 14 to squeeze the elastic member 13 to deform, so that the placing block 14 can pull the clamping block 8 out of the inner part of the clamping groove 7, and then slide the wiring rod 9 into the inner part of the mounting block 4 and connect it with the terminal 2. Then, insert the box cover 5 on the left side of the mounting block 4, so that the limiting block 6 can enter the inner part of the connecting block 3. At this time, by loosening the rotating rod 11, the elastic member 13 can perform a reset movement, so that the elastic member 13 can push the placing block 14 forward, so that the placing block 14 can push the clamping block 8 to penetrate through the limiting block 6 and engage with the inner part of the clamping groove 7, and the inserting block 17 can slide into the inner part of the inserting slot 15, so that the sealing block 18 can slide into the inner part of the inserting slot 15. When the inserting block 17 is in contact with the inner wall of the inserting slot 15, the sealing block 18 can perform a reset movement, so that the sealing block 18 can enter the inner part of the sealing groove 16, so that the sealing block 18 can be in contact with the inner part of the sealing groove 16, so that the connection sealing performance between the inserting block 17 and the inserting slot 15 is better, and further reduce the adhesion of dust to the connection part between the wiring rod 9 and the terminal 2. Thus, the box cover 5 can limit the connection part between the wiring rod 9 and the terminal 2, so that the connection between the wiring rod 9 and the terminal 2 is relatively stable, and the mounting block 4 and the box cover 5 form a relatively sealed space, so that the adhesion of external dust to the connection part between the wiring rod 9 and the terminal 2 is greatly reduced, so that it will not loosen, so that it is not only neat and tidy, but also has a stable connection, so that it is not easy to have poor contact, so that not only the maintenance frequency of workers is reduced, but also the use efficiency will not be reduced, so that the use economy is relatively high.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood 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, comprising a transformer body (1), a plurality of terminals (2) being fixedly connected to the front end of the upper side of the transformer body (1), a plurality of connecting rods (9) being installed at the front end of the transformer body (1), the terminals (2) being connected to the connecting rods (9), characterized in that: The top end of the terminal (2) is fixedly connected to a connection block (3), the bottom front side of the connection block (3) is fixedly connected to a mounting block (4), the front side of the terminal (2) is plugged into the inside of the mounting block (4), the inside of the mounting block (4) is slidably connected to a connection rod (9), the left side of the mounting block (4) is plugged into a box cover (5), the top end of the box cover (5) is fixedly connected to a limit block (6), a slot (7) is provided on the front side of the connection block (3), a block (8) is plugged into the inside of the slot (7), and the block (8) passes through the limit block (6).

2. A dry-type transformer according to claim 1, characterized in that: The connection block (3) is provided with a connection groove (10) inside, the rear side of the connection block (3) is rotatably connected to a rotating rod (11), the outside of the rotating rod (11) is fixedly connected to a pull rope (12), the outside of the pull rope (12) is sleeved with an elastic member (13), the front end of the pull rope (12) is fixedly connected to a placement block (14), and the placement block (14) is fixedly connected to the rear end of the clamping block (8).

3. A dry-type transformer according to claim 2, characterized in that: The left side of the installation block (4) is provided with a slot (15), the inner wall of the slot (15) is provided with a plurality of sealing grooves (16), the right end of the box cover (5) is fixedly connected with an insert block (17), and the outside of the insert block (17) is fixedly connected with a plurality of sealing blocks (18).

4. A dry-type transformer according to claim 1, characterized in that: The limiting block (6) is designed to be "L"-shaped, and the upper side of the limiting block (6) is slidably connected to the inside of the connecting block (3).

5. A dry-type transformer according to claim 2, characterized in that: The pull rope (12) is slidably connected inside the connection groove (10), and the placement block (14) is slidably connected inside the connection groove (10).

6. A dry-type transformer according to claim 2, characterized in that: One end of the elastic member (13) is fixedly connected to the inner wall of the connecting groove (10), and the other end of the connecting groove (10) is fixedly connected to the placement block (14).

7. A dry-type transformer according to claim 3, characterized in that: The insert block (17) is inserted into the interior of the slot (15), the sealing block (18) is slidably connected to the interior of the slot (15), and the sealing block (18) fits the interior of the sealing groove (16).

Images