Dry-type transformer low-voltage rectangular coil

Abstract

The utility model belongs to dry -type transformer technical field, concretely is a kind of dry -type transformer low -voltage rectangular coil, including shell;The inner wall of shell is provided with rectangular coil main body, the outer wall of rectangular coil main body is fixedly connected with rectangular block one, the outer wall of rectangular block one is equipped with limit slot, the outer wall of rectangular block one is equipped with round groove, the inside fixed connection of rectangular block one has one end of spring one, the other end of spring one is fixedly connected with sliding block, the outer wall of sliding block is slidably connected in the inner wall of round groove, the outer end of sliding block is fixedly connected with clamping column. The spring one rebound reset is set back through sliding block to push clamping column completely slide into the inner wall of clamping groove, two shells are fixed, to reach the effect that rectangular coil main body is stacked conveniently, it is favorable to reduce idle space occupancy, reduce storage and transportation cost, improve space utilization.

Description

Technical Field

[0001] This utility model belongs to the field of dry-type transformer technology, specifically a low-voltage rectangular coil for a dry-type transformer. Background Technology

[0002] Dry-type transformers are widely used in high-rise buildings, commercial centers, hospitals, subways, power plants, data centers, and other locations with high safety and stability requirements due to their advantages such as not requiring insulating oil, good fire resistance, and convenient maintenance. As a key piece of equipment in power distribution systems, they are responsible for converting high-voltage electrical energy into low-voltage electrical energy. The low-voltage rectangular coil, as the core winding on the low-voltage side of the dry-type transformer, directly participates in the transmission and transformation of low-voltage electrical energy, and its structural design directly affects the operating efficiency, stability, and safety of the dry-type transformer.

[0003] In the existing technology, when stacking low-voltage rectangular coils of dry-type transformers, there is a lack of convenient fixing structure. Additional tools or complex connectors such as bolts are required to fix multiple low-voltage rectangular coils stacked together. The operation is cumbersome and time-consuming, resulting in a large space occupation. More redundant space needs to be reserved during storage and transportation, which increases storage and transportation costs.

[0004] Therefore, a low-voltage rectangular coil for a dry-type transformer is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a low-voltage rectangular coil for a dry-type transformer.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A dry-type transformer low-voltage rectangular coil of this utility model includes a shell; a rectangular coil body is provided on the inner wall of the shell; a rectangular block is fixedly connected to the outer wall of the rectangular coil body; a limiting groove is opened on the outer wall of the rectangular block; a circular groove is opened on the outer wall of the rectangular block; one end of a spring is fixedly connected to the inside of the rectangular block; a sliding block is fixedly connected to the other end of the spring; the outer wall of the sliding block is slidably connected to the inner wall of the circular groove; a locking post is fixedly connected to the outer end of the sliding block; a vertical plate is fixedly connected to the outer wall of the shell; a rectangular block is fixedly connected to the lower surface of the vertical plate; a locking groove is opened on the outer wall of the rectangular block; the outer wall of the locking post is slidably connected to the inner wall of the locking groove; a pull post is fixedly connected to the outer wall of the sliding block; the outer wall of the pull post is slidably connected to the inner wall of the limiting groove.

[0007] Preferably, a fixed base is fixedly connected to the outer wall of the outer shell, and a rotating column is rotatably connected inside the fixed base.

[0008] Preferably, a rotating wheel is fixedly connected to the outer wall of the rotating column, and the outer wall of the rotating wheel is provided with an inclined groove.

[0009] Preferably, a fixing block is fixedly connected to the outer wall of the outer shell, and a rectangular groove is formed on the outer wall of the fixing block.

[0010] Preferably, one end of the second spring is fixedly connected inside the fixing block, and the other end of the second spring is fixedly connected to the inclined plate block. The outer wall of the inclined plate block is slidably connected to the inner wall of the rectangular groove.

[0011] Preferably, a vertical block is fixedly connected to the outer wall of the rotating column, and a cover plate is fixedly connected to the outer wall of the vertical block, with the outer wall of the cover plate fitting against the outer wall of the outer shell.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model provides a low-voltage rectangular coil for a dry-type transformer. By using a spring to return and reset, the sliding block pushes the locking post to slide completely into the inner wall of the slot, thus fixing the two outer shells. This achieves the effect of conveniently stacking the main body of the rectangular coil, which helps to reduce the occupation of idle space, reduce storage and transportation costs, and improve space utilization.

[0014] 2. This utility model provides a low-voltage rectangular coil for a dry-type transformer. When the cover plate is unfolded to the desired position and external force is stopped, the elastic force of the second spring will push the inclined plate block to reset, so that it is locked into the inclined groove of the rotating wheel. At this time, the straight surface of the inclined plate block is tightly attached to the inner wall of the inclined groove, thereby locking the rotating column in the current position, causing the cover plate to stay stably, so that the rotating column is stably maintained in any unfolded position, improving the convenience of maintenance. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0016] In the attached diagram:

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a perspective view of the rectangular coil body in this utility model;

[0019] Figure 3 This is a perspective view of the sliding block in this utility model;

[0020] Figure 4 This is a cross-sectional view of the internal structure of the fixing block in this utility model.

[0021] Legend:

[0022] 1. Outer shell; 2. Rectangular coil body; 3. Rectangular block one; 4. Limiting groove; 5. Circular groove; 6. Spring one; 7. Sliding block; 8. Locking post; 9. Vertical plate; 10. Rectangular block two; 11. Locking groove; 12. Fixing block; 13. Rectangular groove; 14. Spring two; 15. Angled locking block; 16. Fixed base; 17. Rotating column; 18. Angled groove; 19. Rotating wheel; 20. Vertical block; 21. Cover plate; 22. Pulling post. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] Please see Figure 1 - Figure 4 This utility model provides a low-voltage rectangular coil for a dry-type transformer, including a housing 1; a rectangular coil body 2 is provided on the inner wall of the housing 1, a rectangular block 3 is fixedly connected to the outer wall of the rectangular coil body 2, a limiting groove 4 is provided on the outer wall of the rectangular block 3, a circular groove 5 is provided on the outer wall of the rectangular block 3, one end of a spring 6 is fixedly connected to the inside of the rectangular block 3, a sliding block 7 is fixedly connected to the other end of the spring 6, the outer wall of the sliding block 7 is slidably connected to the inner wall of the circular groove 5, a locking post 8 is fixedly connected to the outer end of the sliding block 7, a vertical plate 9 is fixedly connected to the outer wall of the housing 1, a rectangular block 10 is fixedly connected to the lower surface of the vertical plate 9, a locking groove 11 is provided on the outer wall of the rectangular block 10, and the outer wall of the locking post 8 is slidably connected to the locking groove 11. The inner wall of the sliding block 7 is fixedly connected to the outer wall of the sliding block 7, and the outer wall of the sliding block 22 is slidably connected to the inner wall of the limiting groove 4. The limiting groove 4 opened on the outer wall of the rectangular block 1 3 restricts the sliding trajectory of the sliding block 22. The circular groove 5 provides sliding space for the sliding block 7. The sliding block 7 is connected to the spring 1 6 and the locking post 8. Under the elastic force of the spring 1 6, the locking post 8 is reset. The upright plate 9 fixes the rectangular block 2 10. When the two outer shells 1 are stacked, the rectangular block 2 10 squeezes the locking post 8, causing the sliding block 7 to compress the spring 1 6. After they are in contact, the spring 1 6 pushes the locking post 8 into the locking groove 11 of the rectangular block 2 10 for limiting. The pulling post 22 makes it easy to manually pull the sliding block 7 to make the locking post 8 disengage from the locking groove 11, thereby realizing the convenient stacking and disassembly of the outer shells 1 and improving the operation efficiency.

[0026] Furthermore, such as Figure 1 and Figure 2 As shown, a fixed base 16 is fixedly connected to the outer wall of the outer shell 1, and a rotating column 17 is rotatably connected inside the fixed base 16; the fixed base 16 fixed to the outer wall of the outer shell 1 provides a stable rotation support point for the rotating column 17.

[0027] Furthermore, such as Figure 1 , Figure 2 and Figure 4 As shown, a rotating wheel 19 is fixedly connected to the outer wall of the rotating column 17, and the outer wall of the rotating wheel 19 has an inclined groove 18; a fixing block 12 is fixedly connected to the outer wall of the outer shell 1, and the outer wall of the fixing block 12 has a rectangular groove 13; one end of a spring 14 is fixedly connected to the inside of the fixing block 12, and the other end of the spring 14 is fixedly connected to an inclined plate block 15, the outer wall of the inclined plate block 15 is slidably connected to the inner wall of the rectangular groove 13, and the outer wall of the inclined plate block 15 is slidably connected to the inner wall of the inclined groove 18; a vertical block 20 is fixedly connected to the outer wall of the rotating column 17, and the outer wall of the vertical block 20 is fixedly connected to the outer wall of the rotating column 17. A cover plate 21 is fixedly connected, and the outer wall of the cover plate 21 fits against the outer wall of the outer shell 1. The rotating wheel 19 rotates synchronously with the rotating column 17. The inclined groove 18 on the outer wall cooperates with the inclined plate 15 in the rectangular groove 13 of the fixed block 12. Under the elastic force of the spring 14, the inclined plate 15 always fits against the inclined groove 18. Through the inclined and straight characteristics of the inclined plate 15, the smooth rotation of the rotating wheel 19 is ensured when the cover plate 21 is opened or closed. At the same time, the position of the rotating wheel 19 can be fixed by the straight locking structure when the cover plate 21 stops moving, providing convenient operating space for its maintenance.

[0028] Working principle: When it is necessary to stack the rectangular coil bodies 2, the two outer shells 1 are aligned horizontally. The upper outer shell 1 drives the rectangular block 2 10 to move downward. During the downward movement of the rectangular block 2 10, the outer wall of the rectangular block 2 10 slides on the outer wall of the locking post 8, causing the locking post 8 to move inward under force. During the inward movement of the locking post 8, the sliding block 7 moves inward and slides on the inner wall of the circular groove 5, causing the spring 6 to contract under force. As the two outer shells 1 are completely attached, the outer wall of the locking post 8 slides into the inner wall of the locking groove 11 opened on the outer wall of the rectangular block 2 10. When the locking post 8 slides into the inner wall of the locking groove 11, the spring 6 rebounds and resets, pushing the locking post 8 completely into the inner wall of the locking groove 11 through the sliding block 7, thus fixing the two outer shells 1. This achieves the effect of conveniently stacking the rectangular coil bodies 2, which helps to reduce the occupation of idle space, reduce storage and transportation costs, and improve space utilization.

[0029] When the rectangular coil body 2 needs maintenance, unfolding the cover plate 21 causes it to detach from the outer shell 1. Simultaneously, the upright block 20 drives the rotating column 17 to rotate inside the upright block 20. During the rotation of the rotating column 17, the rotating wheel 19 rotates. The rotation of the rotating wheel 19 causes the inclined plate block 15 to slide within the inner wall of the rectangular groove 13 on the outer wall of the fixed block 12, and causes the second spring 14 to contract. When unfolded, the inclined plate block 15 continues to move under the force of the rotating wheel 19. When the rotating wheel 19 stops rotating, the second spring 14 continues to generate a pushing force, causing the inclined plate block 15 to move towards the inner wall of the inclined groove 18. The inclined plate 15 has one inclined surface and one straight surface. When the cover plate 21 is unfolded to the required position and the external force is stopped, the elastic force of the second spring 14 will push the inclined plate 15 to reset, so that it is locked into the inclined groove 18 of the rotating wheel 19. At this time, the straight surface of the inclined plate 15 is tightly fitted with the inner wall of the inclined groove 18. Since the straight surface cannot be compressed like the inclined surface, if the rotating column 17 has a tendency to rotate in the opposite direction, the pushing force of the inner wall of the inclined groove 18 on the straight surface will be offset by the elastic force of the second spring 14, so that the rotating wheel 19 cannot rotate in the opposite direction, thereby locking the rotating column 17 in the current position, causing the cover plate 21 to remain stably in place, thus keeping the rotating column 17 stably in any unfolded position and improving maintenance convenience.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A low-voltage rectangular coil of a dry-type transformer, comprising a housing (1); characterized in that: The inner wall of the outer shell (1) is provided with a rectangular coil body (2). A rectangular block (3) is fixedly connected to the outer wall of the rectangular coil body (2). A limiting groove (4) is opened on the outer wall of the rectangular block (3). A circular groove (5) is opened on the outer wall of the rectangular block (3). One end of a spring (6) is fixedly connected to the inside of the rectangular block (3). A sliding block (7) is fixedly connected to the other end of the spring (6). The outer wall of the sliding block (7) is slidably connected to the inner wall of the circular groove (5). The outer wall of the outer shell (1) is fixedly connected to a locking post (8), and a vertical plate (9) is fixedly connected to the outer wall of the outer shell (1). A rectangular block (10) is fixedly connected to the lower surface of the vertical plate (9). A slot (11) is opened on the outer wall of the rectangular block (10). The outer wall of the locking post (8) is slidably connected to the inner wall of the slot (11). A pull post (22) is fixedly connected to the outer wall of the outer wall of the sliding block (7). The outer wall of the pull post (22) is slidably connected to the inner wall of the limiting groove (4).

2. The low-voltage rectangular coil of a dry-type transformer as described in claim 1, characterized in that: The outer wall of the outer shell (1) is fixedly connected to a fixed seat (16), and a rotating column (17) is rotatably connected inside the fixed seat (16).

3. The low-voltage rectangular coil of a dry-type transformer as described in claim 2, characterized in that: A rotating wheel (19) is fixedly connected to the outer wall of the rotating column (17), and the outer wall of the rotating wheel (19) is provided with an inclined groove (18).

4. The low-voltage rectangular coil of a dry-type transformer as described in claim 1, characterized in that: A fixing block (12) is fixedly connected to the outer wall of the outer shell (1), and a rectangular groove (13) is provided on the outer wall of the fixing block (12).

5. A low-voltage rectangular coil for a dry-type transformer as described in claim 4, characterized in that: One end of a second spring (14) is fixedly connected inside the fixed block (12), and the other end of the second spring (14) is fixedly connected to a sloped block (15). The outer wall of the sloped block (15) is slidably connected to the inner wall of the rectangular groove (13), and the outer wall of the sloped block (15) is slidably connected to the inner wall of the inclined groove (18).

6. The low-voltage rectangular coil of a dry-type transformer as described in claim 2, characterized in that: The outer wall of the rotating column (17) is fixedly connected to a block (20), and the outer wall of the block (20) is fixedly connected to a cover plate (21). The outer wall of the cover plate (21) is in contact with the outer wall of the outer shell (1).

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