Voltage transformer with protection structure
By designing a protective cover and an anti-standing floating plate structure on the voltage transformer, the problem of birds affecting the normal operation of the voltage transformer is solved, preventing birds from landing and building nests, reducing safety hazards, and ensuring the heat dissipation and safety of the voltage transformer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIYUAN SANXIN ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-07
Smart Images
Figure CN224472288U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a voltage transformer, and more particularly to a voltage transformer with a protective structure, belonging to the field of voltage transformer technology. Background Technology
[0002] A voltage transformer is an electrical device that proportionally converts high voltage to low voltage. Its basic working principle is similar to that of a transformer. It consists of a primary winding, a secondary winding, an iron core, leads, insulation, and a casing. The primary and secondary windings are wound on the iron core, separated by an insulation structure. Primary terminals are led out from the primary winding, and secondary terminals are led out from the secondary winding. The casing is the outermost layer, with the primary and secondary terminals extending out from it. However, voltage transformers are primarily used to provide safe and standardized voltage signals to measuring instruments and relay protection devices, while also achieving electrical isolation between high-voltage systems and low-voltage equipment.
[0003] Voltage transformers are typically installed on power lines. To facilitate heat dissipation, they are often exposed to the air during operation. The terminals and casing of voltage transformers are susceptible to corrosion from rain, snow, sand, and bird droppings. Bird droppings, in particular, are problematic; the acidic or alkaline substances in them can easily corrode the transformer. A large accumulation of bird droppings on the transformer's casing can severely impair its heat dissipation, potentially even causing it to burn out. Furthermore, some birds build nests on or using voltage transformers as supports, further affecting heat dissipation and even posing a short-circuit risk. All of these bird droppings and nests can disrupt the normal operation of voltage transformers, creating safety hazards. Utility Model Content
[0004] The purpose of this invention is to provide a voltage transformer with a protective structure to solve the problem in the prior art where birds defecate or build nests on voltage transformers, affecting the normal operation of the voltage transformers and posing safety hazards.
[0005] To solve the above problems, the voltage transformer with protective structure involved in this utility model adopts the following technical solution: A voltage transformer with protective structure includes a voltage transformer body, on which primary terminals and secondary terminals are provided. A protective cover is provided over the voltage transformer body. The protective cover includes a cover body with heat dissipation holes around its perimeter. A top frame is provided at the top of the cover body. Multiple anti-standing floating plates are arranged sequentially along the circumference at the top of the top frame. The anti-standing floating plate is an inclined plate whose upper end is hinged to the top of the top frame and whose lower end gradually slopes downward away from the top frame. An elastic reset member is provided between the anti-standing floating plate and the top frame. The width of each anti-standing floating plate gradually increases from top to bottom, and a top heat dissipation gap with gradually increasing width from top to bottom is formed between adjacent anti-standing floating plates.
[0006] The anti-standing floating plate is equipped with a first bird-repelling bell, which is a hanging bell suspended on the anti-standing floating plate.
[0007] A second bird-repelling bell is installed on the cover, and a striking bar is installed on the anti-standing floating plate. When the anti-standing floating plate rotates relative to the top frame, the striking bar rotates together with the anti-standing floating plate. The second bird-repelling bell is located on the movement path of the striking bar.
[0008] The top frame is frustum-shaped, with horizontal columns on it. A cylindrical tube protrudes from the anti-standing floating plate and is fitted onto the horizontal column. The cylindrical tube and the horizontal column are fitted with a gap. The anti-standing floating plate is set on the top frame through the fit between the cylindrical tube and the horizontal column.
[0009] The elastic reset element is a torsion spring, which is disposed in the cylindrical tube and sleeved on the horizontal column. One torsion arm of the torsion spring is fixed on the horizontal column, and the other torsion arm of the torsion spring is fixed on the cylindrical tube wall.
[0010] The cover has a wiring port, which includes a primary wiring port and a secondary wiring port. The primary wiring port is located at a position corresponding to the primary wiring terminal of the voltage transformer body, and the secondary wiring port is located at a position corresponding to the secondary wiring terminal of the voltage transformer body.
[0011] The voltage transformer body is provided with a fixing hole, and the cover is provided with a threaded hole of the same size as the fixing hole, and the threaded hole is provided corresponding to the fixing hole.
[0012] A drainage groove is provided on the bottom wall of the cover, and the drainage groove runs horizontally through the bottom wall of the cover.
[0013] The second bird-repelling bell is a plectrum bell.
[0014] Both the primary and secondary wiring ports are equipped with sliding doors, which are slidably mounted on the outer wall of the enclosure. The sliding doors are secured to the enclosure by interlocking buckles.
[0015] This utility model discloses a voltage transformer with a protective structure. The transformer body is fitted with a protective cover, which includes a cover body with ventilation holes around its perimeter. A top frame is mounted on the top of the cover body, and multiple anti-standing floating plates are arranged circumferentially on the top of the top frame. Each anti-standing floating plate is a sloping plate with its upper end hinged to the top of the top frame and its lower end gradually tilting downwards away from the top frame. An elastic reset member is provided between the anti-standing floating plate and the top frame. The anti-standing floating plate can rotate relative to the top frame under external force, and the elastic reset member can drive the anti-standing floating plate to reset when it rotates relative to the top frame. When a bird lands on an anti-standing floating plate, due to the bird's gravity, the anti-standing floating plate will experience a downward force and rotate relative to the top frame. As the anti-standing floating plate rotates relative to the top frame, the elastic reset member drives it to reset, causing the anti-standing floating plate to shake up and down under the combined action of the bird and the elastic reset member. The tilted anti-standing floating plate makes it difficult for birds to grip, and the up-and-down shaking of the anti-standing floating plate further increases the difficulty for birds to grasp it. As a result, birds are less likely to perch on the anti-standing floating plate, reducing the probability of birds defecating on the protective cover. When birds build nests on the protective cover or use the protective cover as a support, the anti-standing floating plate will also shake up and down when touched by birds or branches used by birds to build nests, thus effectively protecting the voltage transformer and preventing birds from building nests on the voltage transformer or using the voltage transformer as a support. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below:
[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;
[0018] Figure 2 for Figure 1 A three-dimensional structural diagram of the protective shield;
[0019] Figure 3 for Figure 2 Top view;
[0020] Figure 4 for Figure 3 Schematic diagram of AA section in the middle;
[0021] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;
[0022] Figure 6for Figure 1 A three-dimensional structural diagram of the medium voltage transformer body.
[0023] In the diagram: 1. Voltage transformer body; 2. Primary terminal; 3. Secondary terminal; 4. Protective cover; 5. Cover body; 6. Top frame; 7. Anti-standing floating plate; 8. First bird deterrent bell; 9. Second bird deterrent bell; 10. Striking bar; 11. Horizontal column; 12. Cylindrical tube; 13. Torsion spring; 14. Primary wiring port; 15. Secondary wiring port; 16. Fixing hole; 17. Threaded hole; 18. Drainage groove; 19. Cover body heat dissipation hole; 20. Top heat dissipation gap; 21. Sliding door. Detailed Implementation
[0024] To make the technical objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model; that is, the described embodiments are only a part of the embodiments of this utility model, and not all of them. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0025] The specific embodiments of the voltage transformer with protective structure involved in this utility model are as follows: Figures 1-6The device comprises a voltage transformer body 1, on which primary terminals 2 and secondary terminals 3 are provided. A protective cover 4 is fitted over the voltage transformer body 1 to isolate it from the external environment, providing protection. The protective cover 4 includes a housing 5 with ventilation holes 19 around its perimeter. A top frame 6 is mounted on the upper end of the housing 5, and multiple anti-standing floating plates 7 are arranged circumferentially on the top of the top frame 6. Each anti-standing floating plate 7 is a sloping plate with its upper end hinged to the top of the top frame 6 and its lower end gradually tilting downwards away from the top frame 6. The sloping anti-standing floating plates 7 make it difficult for birds to grip, increasing the difficulty for birds to perch on them. An elastic reset member is provided between the anti-standing floating plates 7 and the top frame 6. The hinged design allows the anti-standing floating plates 7 to rotate relative to the top frame 6 under external force. The elastic reset member can reset the anti-standing floating plates 7 when they rotate relative to the top frame 6. When a bird lands on the anti-standing floating plate 7, the bird's weight and the impact of its descent exert a downward force on the anti-standing floating plate 7, causing it to rotate relative to the top frame 6. Simultaneously, the elastic reset component drives the anti-standing floating plate 7 to reset. The anti-standing floating plate 7 vibrates up and down under the combined action of the bird and the elastic reset component, further increasing the difficulty for the bird to land on it. When a bird builds a nest on the protective cover 4 or uses the protective cover 4 as a support, the anti-standing floating plate 7 will also vibrate up and down when touched by the bird or a branch it carries, effectively protecting the voltage transformer and preventing birds from building nests on or using the voltage transformer as a support without harming the birds. The width of each anti-standing floating plate 7 gradually increases from top to bottom, forming a top heat dissipation gap 20 that gradually increases in width from top to bottom between adjacent anti-standing floating plates 7. This top heat dissipation gap 20 is used for ventilation and heat dissipation. In summary, this invention can effectively protect the voltage transformer body without harming birds, thus reducing safety hazards.
[0026] Specifically, a first bird deterrent bell 8 is installed on the anti-standing floating plate 7. The first bird deterrent bell 8 is a bell suspended on the anti-standing floating plate 7. When the bell is shaken, it will vibrate and make a sound. The up and down shaking of the anti-standing floating plate 7 will cause the bell to vibrate. The sound of the bell can deter birds and prevent them from approaching the protective cover 4, thereby protecting the voltage transformer body 1 installed inside the protective cover 4. When the wind blows the bell, it will also make an irregular sound, thereby preventing birds from approaching the protective cover 4 and protecting the voltage transformer body 1.
[0027] Specifically, a second bird deterrent bell 9 is installed on the cover 5, and a striking bar 10 is installed on the anti-standing floating plate 7. When the anti-standing floating plate 7 rotates relative to the top frame 6, the striking bar 10 rotates with the anti-standing floating plate 7. The second bird deterrent bell 9 is located on the movement path of the striking bar 10. When a large bird lands on the anti-standing floating plate 7, the anti-standing floating plate 7 shakes up and down with a large amplitude. The striking bar 10 shakes up and down with the anti-standing floating plate 7. The striking bar 10 will shake downwards until it hits the second bird deterrent bell 9. The sound emitted by the second bird deterrent bell 9 when hit by the striking bar 10 can further deter birds and prevent birds from approaching the protective cover 4, thereby protecting the voltage transformer body 1 installed inside the protective cover 4.
[0028] Specifically, the top frame 6 is frustum-shaped, with a horizontal column 11 on it. A cylindrical tube 12 protrudes from the anti-standing floating plate 7, and is fitted onto the horizontal column 11 with a clearance fit. The anti-standing floating plate 7 is mounted on the top frame 6 through the fit between the cylindrical tube 12 and the horizontal column 11. Under external force, the anti-standing floating plate 7 can rotate up and down on the top frame 6 around the horizontal column 11 as an axis.
[0029] Specifically, the elastic reset element is a torsion spring 13, which is disposed in the cylindrical tube 12 and sleeved on the horizontal column 11. One torsion arm of the torsion spring 13 is fixed to the horizontal column 11, and the other torsion arm of the torsion spring 13 is fixed to the tube wall of the cylindrical tube 12. When the anti-standing floating plate 7 rotates on the top frame 6 with the horizontal column 11 as the pivot, the torsion spring 13 deforms, thereby giving the anti-standing floating plate 7 a reverse force, driving the anti-standing floating plate 7 to move in the opposite direction.
[0030] Specifically, the enclosure 5 has wiring ports, through which wires from the primary terminal 2 and secondary terminal 3 can extend beyond the protective enclosure 4. The wiring ports include a primary wiring port 14 and a secondary wiring port 15. The primary wiring port 14 is located at a position corresponding to the primary terminal 2 of the voltage transformer body 1, and the secondary wiring port 15 is located at a position corresponding to the secondary terminal 3 of the voltage transformer body 1. Both the primary wiring port 14 and the secondary wiring port 15 are made of insulating material. There are three secondary wiring ports 15, located on three side walls of the enclosure 5, and the primary wiring port 14 is located on another side wall of the enclosure 5. In this way, when the voltage transformer body 1 is subsequently connected to the circuit system, wires can be connected through the nearest wiring port. The wires connecting to the primary terminal 2 and the wires connecting to the secondary terminal 3 are isolated, and the wires connecting each primary terminal 2 are also isolated from each other, effectively dispersing the wires and reducing the risk of short circuits.
[0031] Specifically, the voltage transformer body 1 is provided with a fixing hole 16, which can be used to fix the voltage transformer body 1 to the circuit system with bolts through the fixing hole 16. The cover 5 is provided with a threaded hole 17 of the same size as the fixing hole 16. The threaded hole 17 is set to correspond to the fixing hole 16. The protective cover 4 is put on the voltage transformer body 1, and the bolts are passed through the threaded hole 17, the fixing hole 16 and the screw hole in the circuit system to be connected in sequence and tightened. The protective cover 4 can be fixed on the voltage transformer body 1, and the two are fixed together in the circuit system.
[0032] Specifically, a drainage groove 18 is provided on the bottom wall of the cover 5, and the drainage groove 18 horizontally penetrates the bottom wall of the cover 5. The drainage groove 18, which is located on the bottom wall of the cover 5 and penetrates the bottom wall of the cover 5, can drain rainwater and other accumulated water in a short time. In addition, the drainage groove 18 also has a ventilation function, which can prevent the inside of the cover 5 from becoming damp.
[0033] Specifically, the second bird deterrent bell 9 is a paddle bell. The paddle bell has a ringing part with a paddle made of elastic material. The ringing part is located outside the movement path of the striking rod 10 so as not to affect the movement of the striking rod 10. The paddle is located in the movement path of the striking rod 10. When the striking rod 10 shakes up and down with the anti-standing floating plate 7, the striking rod 10 will hit the paddle when it shakes downward and move away from the paddle when it shakes upward. Then the paddle rebounds and hits the second bird deterrent bell 9. The second bird deterrent bell 9 is hit and emits a sound that deters birds.
[0034] Specifically, both the primary wiring port 14 and the secondary wiring port 15 are equipped with sliding doors 21. The sliding doors 21 are mounted on the outer wall of the cover 5 and slide up and down. When the sliding doors 21 are in the closed state, the wiring port is closed; when the sliding doors 21 slide down to below the wiring port, the wiring port is opened.
[0035] In the above embodiments, a first bird-repelling bell is provided on the anti-standing floating plate, which is a preferred technical solution. In other embodiments, the first bird-repelling bell may not be provided.
[0036] In the above embodiment, a second bird-repelling bell is provided on the cover, which is a preferred technical solution. In other embodiments, the second bird-repelling bell may not be provided.
[0037] In the above embodiment, the top frame is frustum-shaped; in other embodiments, the top frame may also be square.
[0038] In the above embodiments, the elastic reset element is a torsion spring. In other embodiments, the elastic reset element can also be a compression spring. One end of the compression spring is fixed to the anti-standing floating plate, and the other end of the compression spring is fixed to the top frame.
[0039] In the above embodiments, a drainage groove is provided on the bottom wall of the cover, which is a preferred technical solution. In other embodiments, the drainage groove may not be provided.
[0040] In the above embodiments, sliding doors are provided on both the primary and secondary wiring ports. This is a preferred technical solution. In other embodiments, sliding doors may not be provided.
[0041] The bell, paddle bell, torsion spring, and compression spring in the above embodiments are all commercially available parts and belong to the prior art.
Claims
1. A voltage transformer with a protective structure, comprising a voltage transformer body, wherein the voltage transformer body is provided with primary terminals and secondary terminals, characterized in that, The voltage transformer body is covered with a protective cover, which includes a cover body with heat dissipation holes around its perimeter. A top frame is provided at the top of the cover body, and multiple anti-standing floating plates are arranged sequentially along the circumference on the top of the top frame. Each anti-standing floating plate is an inclined plate that is hinged to the top of the top frame at its upper end and gradually slopes downward away from the top frame at its lower end. An elastic reset member is provided between the anti-standing floating plate and the top frame. The width of each anti-standing floating plate gradually increases from top to bottom, and a top heat dissipation gap with a gradually increasing width from top to bottom is formed between adjacent anti-standing floating plates.
2. The voltage transformer with a protective structure according to claim 1, characterized in that, The anti-standing floating plate is equipped with a first bird-repelling bell, which is a hanging bell suspended on the anti-standing floating plate.
3. The voltage transformer with a protective structure according to claim 2, characterized in that, A second bird-repelling bell is installed on the cover, and a striking bar is installed on the anti-standing floating plate. When the anti-standing floating plate rotates relative to the top frame, the striking bar rotates together with the anti-standing floating plate. The second bird-repelling bell is located on the movement path of the striking bar.
4. The voltage transformer with a protective structure according to claim 3, characterized in that, The top frame is frustum-shaped, with horizontal columns on it. A cylindrical tube protrudes from the anti-standing floating plate and is fitted onto the horizontal column. The cylindrical tube and the horizontal column are fitted with a gap. The anti-standing floating plate is set on the top frame through the fit between the cylindrical tube and the horizontal column.
5. The voltage transformer with a protective structure according to claim 4, characterized in that, The elastic reset element is a torsion spring, which is disposed in the cylindrical tube and sleeved on the horizontal column. One torsion arm of the torsion spring is fixed on the horizontal column, and the other torsion arm of the torsion spring is fixed on the cylindrical tube wall.
6. The voltage transformer with a protective structure according to claim 5, characterized in that, The cover has a wiring port, which includes a primary wiring port and a secondary wiring port. The primary wiring port is located at a position corresponding to the primary wiring terminal of the voltage transformer body, and the secondary wiring port is located at a position corresponding to the secondary wiring terminal of the voltage transformer body.
7. The voltage transformer with a protective structure according to any one of claims 1-6, characterized in that, The voltage transformer body is provided with a fixing hole, and the cover is provided with a threaded hole of the same size as the fixing hole, and the threaded hole is provided corresponding to the fixing hole.
8. The voltage transformer with a protective structure according to claim 7, characterized in that, A drainage groove is provided on the bottom wall of the cover, and the drainage groove runs horizontally through the bottom wall of the cover.
9. The voltage transformer with a protective structure according to claim 6, characterized in that, The second bird-repelling bell is a plectrum bell.
10. The voltage transformer with a protective structure according to claim 9, characterized in that, Both the primary and secondary wiring ports are equipped with sliding doors, which are slidably mounted on the outer wall of the enclosure.