Electromagnetic voltage transformer

Abstract

The utility model relates to the technical field of voltage transformers, in particular to an electromagnetic voltage transformer which comprises a working table, a lifting groove is formed in the surface of the working table, an anti-vibration pad is installed at the top end of the lifting groove, heat dissipation assemblies are arranged on the two sides of a voltage transformer body, limiting blocks are fixedly installed on the periphery of the anti-vibration pad, and the limiting blocks are fixedly connected with the lifting groove. Limiting grooves are formed in the lower portions of the limiting blocks, limiting rods are fixedly installed at the bottom ends of the four limiting grooves, and a plurality of buffer springs are installed in the lifting groove at equal intervals. Micro deformation, caused by vibration or impact, of the internal structure of the mutual inductor can be remarkably reduced mainly through the buffering effect of an anti-vibration pad; when the voltage transformer body is subjected to stress or vibration in the vertical direction, the buffer springs can absorb and disperse the stress, and the direct influence of the stress on the voltage transformer body is reduced.

Description

Technical Field

[0001] This utility model relates to the field of voltage transformer technology, specifically to electromagnetic voltage transformers. Background Technology

[0002] In power systems, voltage transformers are used to convert high voltage to low voltage for accurate measurement, monitoring, and protection. Electromagnetic voltage transformers, as an important type, have wide applications. With the development of power systems, the performance requirements for voltage transformers are becoming increasingly stringent, including measurement accuracy, stability, and safety. As technology continues to advance, the technology of electromagnetic voltage transformers is also constantly innovating and developing. For example, many new types of electromagnetic voltage transformers, such as SF6 gas-insulated voltage transformers and composite single-stage voltage transformers, have emerged, offering better performance in ultra-high voltage and extra-high voltage power systems.

[0003] A search revealed Chinese patent application number 202221108183.5, which discloses an electromagnetic voltage transformer. The transformer includes a main body connected to a fan, and further includes a fixing structure installed within the main body. This fixing structure includes symmetrically arranged clamping components. Each clamping component includes a base fixedly connected to the main body, a rotating support fixedly mounted on one side of the base, and a knob rotatably connected to the rotating support. A threaded shaft is fixedly mounted on one end of the knob, with symmetrically arranged and oppositely reversed threads. The threaded shaft is connected to a first support plate, which is fixedly connected to a frame. A heat-conducting block is fixedly mounted within the frame, with a heat-conducting column fixedly mounted on one side of the heat-conducting block and multiple sets of heat dissipation plates fixedly mounted on the other side. A winding structure is also movably connected to the fixing structure. This invention increases the heat dissipation area of ​​the iron core after clamping, allowing heat from the clamped surface to dissipate easily from the heat dissipation plates, preventing irregular deformation of the iron core due to uneven heat dissipation.

[0004] However, the aforementioned electromagnetic voltage transformer still has the following drawbacks:

[0005] Under prolonged stress, the voltage transformer may undergo slight deformation or displacement, which may affect its measurement accuracy and performance. Displacement or deformation may be caused by mechanical stress or vibration. Therefore, we need electromagnetic voltage transformers to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an electromagnetic voltage transformer. It mainly uses the buffering effect of the anti-vibration pad to significantly reduce the small deformation of the transformer's internal structure caused by vibration or impact, thereby maintaining its measurement accuracy and stability. When the voltage transformer body is subjected to external force, the interaction between the limiting block and the limiting groove can prevent the transformer from undergoing excessive displacement and protect its internal structure from damage. Furthermore, when the voltage transformer body is subjected to stress or vibration in the vertical direction, the buffer spring can absorb and disperse these stresses, reducing their direct impact on the transformer body.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an electromagnetic voltage transformer, including a workbench, a lifting groove on the surface of the workbench, an anti-vibration pad installed at the top of the lifting groove, a voltage transformer body placed on the upper end of the anti-vibration pad, heat dissipation components on both sides of the voltage transformer body, limit blocks fixedly installed around the perimeter of the anti-vibration pad, limit grooves provided below the limit blocks, four limit grooves opened on the four side walls of the lifting groove, limit rods fixedly installed at the bottom of the four limit grooves, the top of the limit rods passing through the center of the surface of the limit blocks and slidingly connected to the limit blocks, and multiple buffer springs equidistantly installed inside the lifting groove.

[0008] Preferably, a fixed plate is installed on one side of the workbench, and a pushing assembly is installed on one side of the surface of the fixed plate. The pushing assembly includes a rotating disk, a threaded rod, a telescopic rod, and a movable frame. One end of the threaded rod passes through one side of the surface of the fixed plate and is connected to the rotating shaft of the rotating disk. The other end of the threaded rod is connected to one side of the surface of the movable frame. The base of the telescopic rod is installed on the other side of the surface of the fixed plate, and the piston rod end of the telescopic rod is connected to the other side of the surface of the movable frame.

[0009] Preferably, the heat dissipation assembly includes a first heat-conducting block, a plurality of first heat-conducting pillars, and a first heat dissipation plate. The first heat-conducting block is installed inside the movable frame, the plurality of first heat-conducting pillars are installed on one side of the first heat-conducting block, and the plurality of first heat dissipation plates are installed on the other side of the first heat-conducting block.

[0010] Preferably, the heat dissipation assembly further includes a second heat-conducting block, a plurality of second heat-conducting pillars, and a second heat dissipation plate. A fixed frame is installed on the other side of the surface of the workbench. The second heat-conducting block is installed inside the fixed frame. A plurality of second heat-conducting pillars are installed on one side of the second heat-conducting block, and a plurality of second heat dissipation plates are installed on the other side of the second heat-conducting block. The first heat-conducting pillar and the second heat-conducting pillar are arranged on both sides of the voltage transformer body.

[0011] Preferably, an iron core is installed inside the voltage transformer body, a first winding is provided on the surface of the iron core, and a second winding is provided on the surface of the first winding.

[0012] Preferably, a ventilated mesh plate is installed at the top of the voltage transformer body, and ventilation plates are installed on both sides of the voltage transformer body, with multiple ventilation holes on the surface of the ventilation plates.

[0013] Preferably, the ventilation plate has protrusions installed at both ends, and the side wall of the voltage transformer body has grooves corresponding to the protrusions, with the protrusions installed inside the grooves.

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

[0015] 1. This utility model mainly uses the buffering effect of the anti-vibration pad to significantly reduce the small deformation of the internal structure of the transformer caused by vibration or impact, thereby maintaining its measurement accuracy and stability. When the voltage transformer body is subjected to external force, the interaction between the limiting block and the limiting groove can prevent the transformer from undergoing excessive displacement and protect its internal structure from damage. Furthermore, when the voltage transformer body is subjected to stress or vibration in the vertical direction, the buffer spring can absorb and disperse these stresses, reducing their direct impact on the transformer body. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the limiting component of this utility model;

[0018] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0019] Figure 4 This is a schematic diagram of the structure of the driving component of this utility model.

[0020] In the diagram: 1. Workbench; 2. Fixed plate; 201. Rotating disk; 202. Threaded rod; 203. Telescopic rod; 3. Moving frame; 301. First heat-conducting column; 302. First heat dissipation plate; 303. First heat-conducting block; 4. Fixed frame; 401. Second heat-conducting column; 402. Second heat dissipation plate; 403. Second heat-conducting block; 5. Anti-vibration pad; 501. Limiting block; 502. Limiting groove; 503. Limiting rod; 6. Buffer spring; 601. Lifting groove; 7. Voltage transformer body; 701. Ventilation mesh plate; 702. Ventilation plate; 703. Protrusion; 704. Groove; 8. Iron core; 801. First winding; 802. Second winding. Detailed Implementation

[0021] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 This utility model provides a technical solution: an electromagnetic voltage transformer, including a workbench 1, a lifting groove 601 on the surface of the workbench 1, an anti-vibration pad 5 installed at the top of the lifting groove 601, a voltage transformer body 7 placed on the upper end of the anti-vibration pad 5, heat dissipation components on both sides of the voltage transformer body 7, limit blocks 501 fixedly installed around the anti-vibration pad 5, limit grooves 502 provided below the limit blocks 501, four limit grooves 502 are opened on the four side walls of the lifting groove 601, limit rods 503 fixedly installed at the bottom of the four limit grooves 502, the top of the limit rods 503 passes through the center of the surface of the limit blocks 501 and slides in connection with the limit blocks 501, and multiple buffer springs 6 are equidistantly installed inside the lifting groove 601;

[0023] In use, the shock-absorbing pad 5 can significantly reduce the small deformation of the internal structure of the transformer caused by vibration or impact, thereby maintaining its measurement accuracy and stability. When the voltage transformer body 7 is subjected to external force, the interaction between the limiting block 501 and the limiting groove 502 can prevent the transformer from undergoing excessive displacement and protect its internal structure from damage. When the voltage transformer body 7 is subjected to stress or vibration in the vertical direction, the buffer spring 6 can absorb and disperse these stresses, reducing their direct impact on the transformer body.

[0024] A fixed plate 2 is installed on one side of the workbench 1. A pushing assembly is installed on one side of the surface of the fixed plate 2. The pushing assembly includes a rotating disk 201, a threaded rod 202, a telescopic rod 203, and a movable frame 3. One end of the threaded rod 202 passes through one side of the surface of the fixed plate 2 and is connected to the rotating shaft of the rotating disk 201. The other end of the threaded rod 202 is connected to one side of the surface of the movable frame 3. The base of the telescopic rod 203 is installed on the other side of the surface of the fixed plate 2. The piston rod end of the telescopic rod 203 is connected to the other side of the surface of the movable frame 3. By rotating the rotating disk 201, the threaded rod 202 can be driven to rotate. Since the threaded rod 202 is connected to the movable frame 3, the rotation of the threaded rod 202 is converted into the linear motion of the movable frame 3, so that the user can easily adjust the position of the movable frame 3 by rotating the rotating disk 201, thereby realizing the rapid positioning or fine adjustment of the voltage transformer body 7.

[0025] The heat dissipation assembly includes a first heat-conducting block 303, multiple first heat-conducting pillars 301, and a first heat dissipation plate 302. The first heat-conducting block 303 is installed inside the movable frame 3, the multiple first heat-conducting pillars 301 are installed on one side of the first heat-conducting block 303, and the multiple first heat dissipation plates 302 are installed on the other side of the first heat-conducting block 303. Since the heat dissipation assembly is installed as a whole inside the movable frame 3, it can be easily removed as a whole when maintenance or replacement is required.

[0026] The heat dissipation assembly also includes a second heat-conducting block 403, multiple second heat-conducting pillars 401, and a second heat dissipation plate 402. A fixed frame 4 is installed on the other side of the surface of the workbench 1. The second heat-conducting block 403 is installed inside the fixed frame 4. Multiple second heat-conducting pillars 401 are installed on one side of the second heat-conducting block 403, and multiple second heat dissipation plates 402 are installed on the other side of the second heat-conducting block 403. The first heat-conducting pillar 301 and the second heat-conducting pillar 401 are arranged on both sides of the voltage transformer body 7. The double-sided heat dissipation design helps more heat to be effectively dissipated, thereby further improving the heat dissipation efficiency.

[0027] The voltage transformer body 7 has an iron core 8 installed inside. The surface of the iron core 8 is provided with a first winding 801, and the surface of the first winding 801 is provided with a second winding 802. By adjusting the turns ratio of the windings, the output voltage can be flexibly controlled to meet the needs of different power systems.

[0028] A ventilated mesh plate 701 is installed on the top of the voltage transformer body 7, and ventilation plates 702 are installed on both sides of the voltage transformer body 7. The surface of the ventilation plates 702 has multiple ventilation holes. The design of the ventilated mesh plate 701 and the ventilation plates 702 helps to reduce the risk of overheating, thereby reducing equipment failure caused by overheating.

[0029] The ventilation plate 702 has protrusions 703 installed at both ends. The side wall of the voltage transformer body 7 has a groove 704 corresponding to the protrusions 703. The protrusions 703 are installed inside the grooves 704. The design of the protrusions 703 and the grooves 704 makes the installation process of the ventilation plate 702 simpler and faster. The operator only needs to align the protrusions 703 with the grooves 704 and push them in gently without the need for additional fixing tools or materials.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic voltage transformer, comprising a workbench (1), characterized in that: The surface of the workbench (1) is provided with a lifting groove (601). A shock-absorbing pad (5) is installed at the top of the lifting groove (601). A voltage transformer body (7) is placed on the upper end of the shock-absorbing pad (5). Heat dissipation components are provided on both sides of the voltage transformer body (7). Limiting blocks (501) are fixedly installed around the shock-absorbing pad (5). Limiting grooves (502) are provided below the limiting blocks (501). Four limiting grooves (502) are opened on the four side walls of the lifting groove (601). Limiting rods (503) are fixedly installed at the bottom of the four limiting grooves (502). The top of the limiting rods (503) passes through the center of the surface of the limiting block (501) and slides in connection with the limiting block (501). Multiple buffer springs (6) are installed at equal intervals inside the lifting groove (601).

2. The electromagnetic voltage transformer according to claim 1, characterized in that: A fixed plate (2) is installed on one side of the workbench (1). A pushing assembly is installed on one side of the surface of the fixed plate (2). The pushing assembly includes a rotating disk (201), a threaded rod (202), a telescopic rod (203), and a movable frame (3). One end of the threaded rod (202) passes through one side of the surface of the fixed plate (2) and is connected to the rotating shaft of the rotating disk (201). The other end of the threaded rod (202) is connected to one side of the surface of the movable frame (3). The base of the telescopic rod (203) is installed on the other side of the surface of the fixed plate (2). The piston rod end of the telescopic rod (203) is connected to the other side of the surface of the movable frame (3).

3. The electromagnetic voltage transformer according to claim 2, characterized in that: The heat dissipation assembly includes a first heat-conducting block (303), a plurality of first heat-conducting pillars (301) and a first heat dissipation plate (302). The first heat-conducting block (303) is installed inside the movable frame (3), the plurality of first heat-conducting pillars (301) are installed on one side of the first heat-conducting block (303), and the plurality of first heat dissipation plates (302) are installed on the other side of the first heat-conducting block (303).

4. The electromagnetic voltage transformer according to claim 3, characterized in that: The heat dissipation assembly also includes a second heat-conducting block (403), a plurality of second heat-conducting pillars (401), and a second heat dissipation plate (402). A fixed frame (4) is installed on the other side of the surface of the workbench (1). The second heat-conducting block (403) is installed inside the fixed frame (4). A plurality of second heat-conducting pillars (401) are installed on one side of the second heat-conducting block (403), and a plurality of second heat dissipation plates (402) are installed on the other side of the second heat-conducting block (403). The first heat-conducting pillar (301) and the second heat-conducting pillar (401) are arranged on both sides of the voltage transformer body (7).

5. The electromagnetic voltage transformer according to claim 4, characterized in that: The voltage transformer body (7) has an iron core (8) installed inside. The surface of the iron core (8) is provided with a first winding (801) and the surface of the first winding (801) is provided with a second winding (802).

6. The electromagnetic voltage transformer according to claim 5, characterized in that: A breathable mesh plate (701) is installed on the top of the voltage transformer body (7), and ventilation plates (702) are installed on both sides of the voltage transformer body (7). Multiple ventilation holes are opened on the surface of the ventilation plates (702).

7. The electromagnetic voltage transformer according to claim 6, characterized in that: The ventilation plate (702) has protrusions (703) installed at both ends, and the side wall of the voltage transformer body (7) has a groove (704) corresponding to the protrusions (703), and the protrusions (703) are installed inside the grooves (704).

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