Voltage transformer facilitating later maintenance

Abstract

The utility model discloses a voltage transformer convenient to post maintenance, including voltage transformer body, the outside department symmetry of voltage transformer body is installed left connecting casing and right connecting casing, and the front end outer wall and rear end outer wall of left connecting casing and right connecting casing all symmetry are installed with the joint cavity, one end of joint cavity all is penetrated and is offered with the through cavity, and the both sides of through cavity all symmetry are offered with the limiting slot, the utility model discloses in the installation process to voltage transformer body, according to hoisting demand or ordinary placing demand, flexible installation series connection board and mounting plate to the top or bottom of voltage transformer body, can satisfy different installation demand, adopt this kind of mode, make the device in the use process, there is no limitation, and all adopt the mode of joint or plug -in installation, discard the traditional bolt fixed mode, improve the convenience of voltage transformer body post maintenance or overhaul, improve the practicality of device.

Description

Technical Field

[0001] This utility model relates to the field of voltage transformer technology, specifically a voltage transformer that is easy to maintain later. Background Technology

[0002] Voltage transformers play a crucial role in power systems, primarily used by secondary equipment such as measuring instruments and relay protection devices to obtain voltage information from the primary electrical circuits. They are devices that proportionally convert high voltage into low voltage, enabling the voltage signal to be recognized and processed by measuring instruments and protection devices.

[0003] In the existing technology, voltage transformers are often installed using hanging brackets or fixed brackets. This requires the use of bolts and other fasteners during installation, causing inconvenience during installation and difficulty in disassembly during subsequent maintenance.

[0004] A search revealed a Chinese patent document (publication number: CN212161491U) disclosing a quick-assembly and disassembly voltage transformer bracket. This utility model discloses a similar bracket, comprising a mounting column, a support plate, and a second mounting plate. The top of the outer side of the mounting column has a mounting structure, and the bottom of the outer side of the mounting column has a second mounting ring. A second support rod is mounted on one side of the second mounting ring. The top of the support plate has the second support rod, and a support structure is provided on the outer side of the second support rod. The support structure includes a button, a first support rod, a pre-drilled hole, and a first spring. The first support rod is mounted on the outer side of the second support rod, and its top is connected to the bottom of the second mounting plate. This utility model uses threaded posts installed at both ends of the first mounting ring, which penetrate the interior of the mounting block. Tightening the nuts with a tool locks the mounting block in place, thus securing the first mounting ring to the outer side of the mounting column. The bolt connection is simple and stable, and installation and disassembly are convenient. However, it still has the following drawbacks:

[0005] While the aforementioned quick-release voltage transformer bracket achieves a simple and secure bolt connection by installing threaded posts at both ends of the first mounting ring, inserting the threaded posts into the interior of the mounting block, and tightening the nuts with a tool to lock the mounting block in place, thus securing the first mounting ring to the outside of the mounting posts, it still has limitations in the use of mounting components. Furthermore, the voltage transformer requires the use of bolts and other fasteners during installation, causing inconvenience during installation and difficulties in disassembly during subsequent maintenance. Summary of the Invention

[0006] The purpose of this utility model is to provide a voltage transformer that is easy to maintain in the later stage, so as to solve the problem mentioned in the background art that the voltage transformer needs to be installed with bolts and other fasteners during the installation process, which causes inconvenience in installation and difficulty in disassembly during subsequent maintenance.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a voltage transformer that facilitates later maintenance, comprising a voltage transformer body, a left connecting shell and a right connecting shell symmetrically installed on the outer side of the voltage transformer body, and a snap-fit ​​cavity symmetrically installed on the front and rear outer walls of the left and right connecting shells, each snap-fit ​​cavity having a through cavity at one end, and limit grooves symmetrically formed on both sides of the through cavity, with a snap-fit ​​post inserted into the top of the snap-fit ​​cavity, and snap-fit ​​posts symmetrically arranged front and rear. A series plate is installed between the top ends. One end of each snap-fit ​​post is rotatably connected to a through block, and limit blocks are installed on both outer walls of the through block. One end of the through block passes through one end of the through cavity. The outer wall of the limit block abuts against the bottom outer wall of the top snap-fit ​​cavity. A snap-fit ​​groove is symmetrically installed on the top end of one of the series plates. A connecting block is snapped into the top end of the snap-fit ​​groove, and the top end of the connecting block is connected to the bottom end of the mounting plate. A connecting cavity is symmetrically installed on the top end of the mounting plate, and a lifting ring is hinged inside each connecting cavity.

[0008] Preferably, the inner walls of both the left and right connecting shells are equipped with a heat-conducting layer, and the heat-conducting layer is made of copper. Heat dissipation fins are installed at equal intervals on one side of the outer wall of the heat-conducting layer, and the heat dissipation fins penetrate the corresponding side walls of the left and right connecting shells respectively.

[0009] Preferably, the right connecting shell has symmetrically opened insertion cavities at one end near the left connecting shell, and each insertion cavity has an insertion block inserted inside. The insertion blocks are made of magnetic material and are symmetrically installed at one end of the left connecting shell near the right connecting shell. One end of the insertion block is magnetically attracted to the outer wall of the magnetic attracting piece, and the magnetic attracting piece is embedded inside the insertion cavity.

[0010] Preferably, a rotating cavity is provided inside the bottom end of the snap-fit ​​post, and a rotating block is rotatably connected inside the rotating cavity, with the bottom end of the rotating block connected to the top end of the through block.

[0011] Preferably, the outer sidewall of the rotating block is provided with second limiting protrusions at equal intervals, and the outer sidewall of the second limiting protrusion is connected to the outer sidewall of the first limiting protrusion. The first limiting protrusion is provided with the inner sidewall of the flexible ring at equal intervals.

[0012] Preferably, the connecting block has an inner cavity on both sides, and a return spring is symmetrically installed at one end of the inner cavity. A snap-fit ​​block is installed at one end of the return spring. The snap-fit ​​block passes through the inside of the snap-fit ​​groove, and the snap-fit ​​groove is symmetrically opened on both sides of the connecting cavity.

[0013] Preferably, each of the mounting plates has a symmetrically mounted stabilizing block at its bottom end, the bottom end of the stabilizing block abutting against the top end of the voltage transformer body, and a top cover can be snapped onto the top end of the connecting cavity.

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

[0015] 1. In the installation process of the voltage transformer body, this utility model adopts a flexible installation method, which allows the series plate and mounting plate to be installed above or below the voltage transformer body according to hoisting or ordinary placement requirements. This method can meet different installation needs and makes the device unrestricted in use. All installations are done by snap-fit ​​or plug-in, eliminating the need for traditional bolts and other fixing methods. This improves the convenience of later maintenance or repair of the voltage transformer body and enhances the practicality of the device.

[0016] This invention features a left and right connecting shell correspondingly mounted on the outside of the voltage transformer body. After the left and right connecting shells are assembled, the heat-conducting layer adheres to the outer wall of the voltage transformer body. When the voltage transformer body is in use, the heat generated will be absorbed by the heat-conducting layer, and the heat generated by the heat-conducting layer will be eliminated by the heat dissipation fins, thereby effectively reducing the operating temperature of the voltage transformer body. In subsequent maintenance, the left and right connecting shells can be separated by their opposite movements, allowing for maintenance or repair of the voltage transformer body, thus improving the convenience and stability of the voltage transformer body during operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled parts structure of the left connecting shell and the right connecting shell in this utility model;

[0019] Figure 3 This is a schematic diagram of the combined component structure of the card-connecting cavity, the through cavity, and the limiting groove in this utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled parts structure of the connecting cavity, the snap-fit ​​groove, the connecting block, and the snap-fit ​​block in this utility model;

[0021] Figure 5 This is a cross-sectional structural diagram of the snap-fit ​​component in this utility model;

[0022] Figure 6 This is a schematic diagram of the combined component structure of the connecting cavity, lifting ring, and top cover in this utility model;

[0023] Figure 7 This is a bottom view of the structure of this utility model;

[0024] Figure 8 In this utility model Figure 7 Enlarged structural diagram of part A.

[0025] In the diagram: 1. Voltage transformer body; 2. Left connecting shell; 3. Right connecting shell; 4. Heat-conducting layer; 5. Insertion cavity; 6. Insertion block; 7. Magnetic suction plate; 8. Heat dissipation fins; 9. Snap-fit ​​cavity; 10. Through cavity; 11. Limiting groove; 12. Snap-fit ​​post; 13. Series plate; 14. Rotating cavity; 15. Flexible ring; 16. First limiting protrusion; 17. Second limiting protrusion; 18. Rotating block; 19. Through block; 20. Limiting block; 21. Connecting cavity; 22. Snap-fit ​​groove; 23. Connecting block; 24. Inner cavity; 25. Return spring; 26. Snap-fit ​​block; 27. Mounting plate; 28. Connecting cavity; 29. ​​Lifting ring; 30. Top cover; 31. Stabilizing block. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] Example 1

[0028] Please see Figure 1-8 This utility model provides a voltage transformer that is easy to maintain, including a voltage transformer body 1. Both outer walls of the voltage transformer body 1 are provided with a left connecting shell 2 and a right connecting shell 3, each with a concave structure. Both the left and right connecting shells 2 and 3 are made of heat-insulating material. The inner walls of both the left and right connecting shells 2 and 3 are fixedly connected with a concave heat-conducting layer 4. The outer wall of the heat-conducting layer 4, away from the left and right connecting shells 2 and 3, is in contact with the outer wall of the voltage transformer body 1. The heat-conducting layer 4 is made of copper. The heat-conducting layer 4 is fixedly connected with heat dissipation fins 8 at equal intervals on its sidewalls. The heat dissipation fins 8 all penetrate the sidewalls of the corresponding left connecting shell 2 or right connecting shell 3. The right connecting shell 3 is symmetrically provided with insertion cavities 5 at one end near the left connecting shell 2. Magnetic absorbing pieces 7 are embedded inside the insertion cavities 5. The outer wall of one end of the magnetic absorbing piece 7 is magnetically attracted to one end of the insertion block 6 provided with a magnetic material structure. One end of the insertion block 6 is inserted into the inside of the insertion cavity 5, and the other end of the insertion block 6 is fixedly connected to the outer wall of the left connecting shell 2 at the end near the right connecting shell 3.

[0029] When the voltage transformer body 1 is in use, the left connecting housing 2 and the right connecting housing 3 are correspondingly covered on the outside of the voltage transformer body 1 and combined with each other, so that the plug-in block 6 is inserted into the inside of the plug-in cavity 5. The left connecting housing 2 and the right connecting housing 3 are combined by magnetic attraction between one end of the plug-in block 6 and the outer wall of one end of the magnetic absorbing plate 7. After the left connecting housing 2 and the right connecting housing 3 are combined, the heat-conducting layer 4 will be attached to the outer wall of the voltage transformer body 1. When the voltage transformer body 1 is in use, the heat generated will be absorbed by the heat-conducting layer 4, and the heat generated by the heat-conducting layer 4 will be eliminated by the heat dissipation fins 8, thereby effectively reducing the operating temperature of the voltage transformer body 1. In subsequent maintenance, the left connecting housing 2 and the right connecting housing 3 can be separated by moving in opposite directions, so that the voltage transformer body 1 can be maintained or repaired, improving the convenience and stability of the voltage transformer body 1 during operation.

[0030] The front and rear outer walls of the left connecting shell 2 and the right connecting shell 3 are symmetrically fixedly connected with snap-fit ​​cavities 9. The insertion ends of the upper and lower snap-fit ​​cavities 9 are respectively structurally configured. The end of each snap-fit ​​cavity 9 away from the insertion end is provided with a through cavity 10 corresponding to the size of the outer wall of the through block 19. Both sides of the through cavity 10 are provided with limiting grooves 11. The inner wall size of the limiting groove 11 is adapted to the outer wall size of the limiting block 20. The top of each snap-fit ​​cavity 9 is provided with a snap-fit ​​post 12. The snap-fit ​​posts 12 are symmetrically fixedly connected to one end of the series plate 13. A rotating cavity 14 is provided inside each end of the series plate 13. A flexible ring 15 with a circular structure is fixedly connected inside each rotating cavity 14. A first limiting protrusion 16 is fixedly connected at equal intervals to the inner side wall of the flexible ring 15. The outer side wall of the first limiting protrusion 16 abuts against the outer side wall of the second limiting protrusion 17. The second limiting protrusion 17 is fixedly connected at equal intervals to the outer side wall of the rotating block 18. The rotating block 18 is rotatably connected inside the rotating cavity 14. A through block 19 is fixedly connected to one end of the rotating block 18. A limiting block 20 is symmetrically fixedly connected to the outer side wall of the through block 19.

[0031] According to the installation requirements of the voltage transformer body 1, the snap-fit ​​post 12, which is fixedly connected to one end of the series plate 13, is inserted into the corresponding snap-fit ​​cavity 9. The through block 19 and the limiting block 20 are aligned with the through cavity 10 and the limiting groove 11. When the bottom end of the snap-fit ​​post 12 abuts against one end of the inside of the snap-fit ​​cavity 9, the through block 19 and the limiting block 20 will pass through one end of the through cavity 10 and the limiting groove 11. Then, the through block 19 and the limiting block 20 are rotated so that the limiting block 20 no longer corresponds to the limiting groove 11 and abuts against the outer wall of one end of the snap-fit ​​cavity 9. This completes the process. The series plate 13 can be installed quickly, and during the rotation of the through block 19 and the limiting block 20, the rotating block 18 rotates synchronously inside the rotating cavity 14. After rotation, the outer wall of the first limiting protrusion 16 abuts against the outer wall of the second limiting protrusion 17, thereby making the rotating block 18, the through block 19 and the limiting block 20 self-limited. This method facilitates the quick separation of the relevant components used for positioning the voltage transformer body 1 during subsequent maintenance, eliminating the need for traditional limiting structures such as bolts.

[0032] One of the series plates 13 has a connecting cavity 21 fixedly connected to its top end. Both sides of the connecting cavity 21 have through-holes 22. Each through-hole 22 has a through-hole 26. One end of each through-hole 26 has a return spring 25 fixedly connected symmetrically. The other end of each return spring 25 is fixedly connected to the inner wall of the inner cavity 24. The inner cavity 24 is symmetrically opened on both sides of the connecting block 23. The connecting block 23 is inserted into the top end of the connecting cavity 21. The top end of the connecting block 23 is fixedly connected to a mounting plate 27. Both sides of the top end of the mounting plate 27 have symmetrically fixedly connected connecting cavities 28. The front and rear inner walls of the connecting cavity 28 are hinged together. The top end of the connecting cavity 28 can be fixedly connected to a top cover 30. The bottom end of the mounting plate 27 has symmetrically fixedly connected to a stabilizing block 31. The bottom end of the stabilizing block 31 abuts against the top end of the voltage transformer body 1.

[0033] According to the installation requirements of the voltage transformer body 1, the connecting block 23, which is fixedly connected to the mounting plate 27, is inserted into the inside of the connecting cavity 21. When the connecting block 23 is inserted into the connecting cavity 21 until it reaches the limit, the inner cavity 24 corresponds to the snap-fit ​​groove 22. In this way, the snap-fit ​​block 26 will not come into contact with the inner wall of the connecting cavity 21. As a result, the reset spring 25 releases potential energy and drives the snap-fit ​​block 26 to move, so that the snap-fit ​​block 26 is inserted into the inside of the snap-fit ​​groove 22. Thus, the mounting plate 27 and the series plate 13 are fixed through the connecting cavity 21 and the connecting block 23.

[0034] When the voltage transformer body 1 needs to be hoisted and installed, the top cover 30 is separated from the connecting cavity 28, and connected to the lifting ring 29 by steel cable and hooks and other connecting parts. Depending on the operation requirements, the lifting ring 29 can be connected at an angle to allow the lifting ring 29 to be hoisted by steel cable and other parts, or the four lifting rings 29 can be concentrated on one steel cable and other parts for hoisting. When the voltage transformer body 1 is normally fixed to the ground or other areas, it is not necessary to separate the top cover 30. The device can be placed and used directly to complete the installation and positioning of the voltage transformer body 1. During placement and use, the stabilizing blocks 31 are set to increase the support points, making the voltage transformer body 1 more stable and evenly stressed.

[0035] When the voltage transformer body 1 needs to be separated, the mounting plate 27 is disassembled by pressing the snap-fit ​​block 26 to retract the reset spring 25, which separates the connecting cavity 21 and the connecting block 23. This quick-release design can meet the needs of later maintenance or repair.

[0036] The specific usage process in this embodiment is as follows:

[0037] First, according to the installation requirements of the voltage transformer body 1, the snap-fit ​​post 12 fixedly connected to one end of the series plate 13 is inserted into the corresponding snap-fit ​​cavity 9, and the through block 19 and the limiting block 20 are aligned with the through cavity 10 and the limiting groove 11. When the bottom end of the snap-fit ​​post 12 abuts against one end of the inside of the snap-fit ​​cavity 9, the through block 19 and the limiting block 20 will pass through one end of the through cavity 10 and the limiting groove 11. Then, rotate the through block 19 and the limiting block 20 so that the limiting block 20 does not correspond to the limiting groove 11 and abuts against the outer wall of one end of the snap-fit ​​cavity 9. In this way, the series plate 13 can be installed quickly.

[0038] Secondly, according to the installation requirements of the voltage transformer body 1, the connecting block 23 with the mounting plate 27 is inserted into the inside of the connecting cavity 21, and the snap-fit ​​block 26 is inserted into the inside of the snap-fit ​​groove 22, so that the mounting plate 27 and the series plate 13 are fixed through the connecting cavity 21 and the connecting block 23.

[0039] Then, when the voltage transformer body 1 needs to be hoisted and installed, the top cover 30 is separated from the connecting cavity 28, and connected to the lifting ring 29 by steel cable and hooks and other connecting parts. Depending on the operation requirements, the lifting ring 29 can be connected at an angle to allow the lifting ring 29 to be hoisted by steel cable and other parts, or the four lifting rings 29 can be concentrated on one steel cable and other parts to complete the hoisting. When the voltage transformer body 1 is normally fixed to the ground or other areas, it is not necessary to separate the top cover 30. The device can be placed and used directly to complete the installation and limiting of the voltage transformer body 1.

[0040] Furthermore, when the voltage transformer body 1 needs to be separated, the mounting plate 27 is disassembled by pressing the snap-fit ​​block 26 to retract the reset spring 25, thereby separating the connecting cavity 21 and the connecting block 23.

[0041] Finally, the left connecting housing 2 and the right connecting housing 3 are correspondingly covered on the outside of the voltage transformer body 1 and combined with each other to complete the assembly. After the assembly between the left connecting housing 2 and the right connecting housing 3 is completed, the heat-conducting layer 4 will be attached to the outer side wall of the voltage transformer body 1. When the voltage transformer body 1 is in use, the heat generated will be absorbed by the heat-conducting layer 4, and the heat generated by the heat-conducting layer 4 will be eliminated by the heat dissipation fins 8, thereby effectively reducing the operating temperature of the voltage transformer body 1. In this way, a voltage transformer that is easy to maintain in the later stage is completed.

[0042] It should be noted that this utility model is a voltage transformer that is easy to maintain in the later stage. All components are general standard parts or components known to those skilled in the art. Its structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components, which refer to power components, electrical components and the matching monitoring computer and power supply, are connected by wires. The specific connection method should refer to the working principle above and complete the electrical connection in the order of operation between each electrical component. The detailed connection method is a well-known technology in the field.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A voltage transformer that is easy to maintain in later stages, comprising a voltage transformer body (1), characterized in that: The voltage transformer body (1) is symmetrically equipped with a left connecting housing (2) and a right connecting housing (3) on its outer side. The front and rear outer walls of the left connecting housing (2) and the right connecting housing (3) are symmetrically equipped with snap-fit ​​cavities (9). One end of each snap-fit ​​cavity (9) is provided with a through cavity (10), and the two sides of the through cavity (10) are symmetrically provided with limit grooves (11). A snap-fit ​​post (12) is inserted into the top of the snap-fit ​​cavity (9). A series plate (13) is installed between the tops of the snap-fit ​​posts (12) which are symmetrically arranged at the front and rear. One end of each snap-fit ​​post (12) is rotatably connected with a through block (19). ), and limit blocks (20) are installed on both outer walls of the through block (19). One end of the through block (19) passes through one end of the through cavity (10). The outer wall of the limit block (20) abuts against the bottom outer wall of the top snap-fit ​​cavity (9). A snap-fit ​​groove (22) is symmetrically installed on the top of one of the series plates (13). A connecting block (23) is snapped on the top of the snap-fit ​​groove (22). The top of the connecting block (23) is connected to the bottom of the mounting plate (27). A connecting cavity (28) is symmetrically installed on the top of the mounting plate (27). A lifting ring (29) is hinged inside the connecting cavity (28).

2. The voltage transformer for easy maintenance according to claim 1, characterized in that: The inner walls of the left connecting shell (2) and the right connecting shell (3) are both equipped with a heat-conducting layer (4), and the heat-conducting layer (4) is made of copper. Heat dissipation fins (8) are installed at equal intervals on one side of the outer wall of the heat-conducting layer (4), and the heat dissipation fins (8) penetrate the corresponding side walls of the left connecting shell (2) and the right connecting shell (3).

3. A voltage transformer for easy later maintenance according to claim 1, characterized in that: The right connecting shell (3) has symmetrically opened insertion cavities (5) at one end near the left connecting shell (2), and each insertion cavity (5) has an insertion block (6) inserted inside. The insertion block (6) is made of magnetic material and is symmetrically installed at one end of the left connecting shell (2) near the right connecting shell (3). One end of the insertion block (6) is magnetically attracted to the outer wall of the magnetic attracting piece (7), and the magnetic attracting piece (7) is embedded inside the insertion cavity (5).

4. A voltage transformer for easy later maintenance according to claim 1, characterized in that: The bottom end of the snap-fit ​​post (12) is provided with a rotating cavity (14), and a rotating block (18) is rotatably connected inside the rotating cavity (14), and the bottom end of the rotating block (18) is connected to the top end of the through block (19).

5. A voltage transformer for easy later maintenance according to claim 4, characterized in that: The outer side wall of the rotating block (18) is provided with second limiting protrusions (17) at equal intervals, and the outer side wall of the second limiting protrusions (17) is connected to the outer side wall of the first limiting protrusions (16). The first limiting protrusions (16) are provided with the inner side wall of the flexible ring (15) at equal intervals.

6. A voltage transformer for easy later maintenance according to claim 1, characterized in that: Both sides of the connecting block (23) are provided with inner cavities (24), and a return spring (25) is symmetrically installed at one end of the inner cavity (24). A snap-fit ​​block (26) is installed at one end of the return spring (25). The snap-fit ​​block (26) passes through the inside of the snap-fit ​​groove (22), and the snap-fit ​​groove (22) is symmetrically opened on both sides of the connecting cavity (21).

7. A voltage transformer for easy later maintenance according to claim 1, characterized in that: The bottom of each mounting plate (27) is symmetrically equipped with a stabilizing block (31), the bottom of which abuts against the top of the voltage transformer body (1), and the top of the connecting cavity (28) can be snapped with a top cover (30).

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