Rectifier transformer low-voltage copper bar fixing structure

Abstract

The utility model relates to rectifier transformer technical field, concretely is a kind of rectifier transformer low voltage copper bar fixed structure, including fixed plate, low voltage copper bar fixed mechanism and protection mechanism, the low voltage copper bar fixed mechanism is fixedly connected in the top of fixed plate, the low voltage copper bar fixed mechanism includes the insulator fixedly connected in the top of fixed plate both sides. In the utility model, by the setting of limiting connection threaded rod, shock absorber and positioning column, copper bar can be limited and fixed in multidirection, when copper bar is vibrated during the operation of transformer, shock absorber can absorb vibration energy, slow down the transmission of vibration, while shock-absorbing expansion spring further enhances the damping effect, limiting connection threaded rod not only plays the role of connection positioning, but also can limit the displacement of copper bar to some extent, ensure that copper bar can still maintain stable connection under vibrating environment, greatly improve the stability and reliability of copper bar fixed structure, prolong its service life.

Description

Technical Field

[0001] This utility model relates to the field of rectifier transformer technology, and in particular to a fixing structure for the low-voltage copper busbar of a rectifier transformer. Background Technology

[0002] A rectifier transformer is a power transformer used in rectifier equipment. It is widely used in industrial production to convert AC power into DC power for subsequent equipment. Copper busbars are high-current conductive products commonly used in the low-voltage lead connection structure of rectifier transformers. Bolts are typically used to secure the insulators to the copper busbars.

[0003] The existing technical solution uses insulating plates and bolts to fix the copper busbars, which results in clamping force in only one direction and lacks effective fixation in other directions. When the transformer is running, the copper busbars are prone to vibration due to the large low-voltage current, which can lead to displacement and loosening, potentially causing safety hazards.

[0004] To address the aforementioned problems, this utility model provides a fixing structure for the low-voltage copper busbar of a rectifier transformer. Utility Model Content

[0005] The purpose of this utility model is to solve the problems of unstable copper busbar fixing, easy vibration and displacement, and easy safety hazards in the existing technology, and to propose a fixing structure for low-voltage copper busbar of rectifier transformer.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fixing structure for a low-voltage copper busbar of a rectifier transformer, comprising a fixing plate, a low-voltage copper busbar fixing mechanism, and a protective mechanism, wherein the low-voltage copper busbar fixing mechanism is fixedly connected to the top of the fixing plate, and the low-voltage copper busbar fixing mechanism includes insulators fixedly connected to both sides of the top of the fixing plate.

[0007] The low-voltage copper busbar fixing mechanism includes a limiting connecting threaded rod and a shock-absorbing component, wherein the shock-absorbing component includes a shock-absorbing damper.

[0008] A bearing plate is fixedly connected to the outer surface of the insulator. The damping assembly is fixedly connected to both sides of the top of the bearing plate. A damping telescopic spring is sleeved on the outer surface of the damping damper. A positioning post is threadedly connected to the top of the damping damper and the damping telescopic spring. Connecting bolts are threadedly connected to both sides of the positioning post. The positioning post is threadedly connected to the top of the damping damper through the connecting bolts. Threaded holes are opened on both sides of the positioning post. The limiting connecting threaded rod is threadedly connected to the inside of the positioning post through the threaded holes.

[0009] Furthermore, the two ends of the limiting connecting threaded rod are threaded with end limiting nuts, and the limiting connecting threaded rod is threaded to the inside of the positioning post through the end limiting nuts.

[0010] Furthermore, terminal blocks are fixedly connected to both ends of the insulator, and a plug slot is provided inside the top terminal block. A copper busbar is inserted into the plug slot, and connectors are threaded to both sides of the bottom of the copper busbar. The copper busbar is threaded to the top of the insulator through the connectors.

[0011] Furthermore, the limiting connecting threaded rod is threaded to both sides of the top of the copper busbar, and a middle limiting nut is threaded to the outer surface of the limiting connecting threaded rod. The copper busbar is threaded to the outer surface of the connecting threaded rod through the middle limiting nut, and a wiring hole is opened at the top of the copper busbar.

[0012] Furthermore, the protective mechanism includes rotating columns rotatably connected to both sides of the fixed plate, and a protective shell is rotatably connected to the outer surface of the rotating columns. The protective shell and the rotating columns are symmetrically arranged on both sides of the fixed plate, and a connecting through hole is provided at the connection between the protective shell and the limiting connecting threaded rod and the copper busbar.

[0013] Furthermore, a sealing gasket is snapped into the inside of the connecting through hole, and a limit pin is fixedly connected to the top of the protective housing on one side.

[0014] Furthermore, a limiting block is fixedly connected to the top of the other protective shell, and a limiting buckle is rotatably connected to the outer surface of the limiting block. The two protective shells are interlocked by limiting pins and limiting buckles.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, the copper busbar can be limited and fixed in multiple directions by setting up a limiting connecting threaded rod, a shock damper, and a positioning column. When the copper busbar is vibrated during the operation of the transformer, the shock damper can absorb the vibration energy and slow down the transmission of vibration. At the same time, the shock-absorbing telescopic spring further enhances the shock absorption effect. The limiting connecting threaded rod not only plays the role of connection and positioning, but also restricts the displacement of the copper busbar to a certain extent, ensuring that the copper busbar can maintain a stable connection in the vibration environment. This greatly improves the stability and reliability of the copper busbar fixing structure and extends its service life.

[0017] 2. In this utility model, the protective shell, sealing gasket, and limiting buckle are used to completely enclose the low-voltage copper busbar fixing mechanism, effectively blocking external pollutants such as rainwater and dust. The sealing gasket enhances the sealing performance at the connection between the protective shell and the copper busbar and the limiting connecting threaded rod, further preventing the intrusion of moisture and dust. The cooperation of the limiting buckle and the limiting pin makes the opening and closing of the protective shell convenient and secure. While protecting the internal structure, it also facilitates maintenance personnel to carry out inspections, reducing the probability of bolt corrosion and other problems caused by external environmental factors, and reducing maintenance difficulty and cost. Attached Figure Description

[0018] Figure 1 This utility model provides a three-dimensional structural diagram of a fixing structure for the low-voltage copper busbar of a rectifier transformer;

[0019] Figure 2 This utility model provides a structural diagram of a shock-absorbing telescopic spring in the fixing structure of the low-voltage copper busbar of a rectifier transformer;

[0020] Figure 3 This utility model proposes a fixing structure for the low-voltage copper busbar of a rectifier transformer. Figure 2 Enlarged view of point A;

[0021] Figure 4 This utility model provides a structural diagram of a limiting connection threaded rod in a fixing structure for a low-voltage copper busbar of a rectifier transformer;

[0022] Figure 5 This utility model provides a schematic diagram of the copper busbar structure in the low-voltage copper busbar fixing structure of a rectifier transformer;

[0023] Figure 6 This utility model proposes a fixing structure for the low-voltage copper busbar of a rectifier transformer. Figure 5 Enlarged diagram of point B.

[0024] Legend:

[0025] 1. Fixing plate; 2. Low-voltage copper busbar fixing mechanism; 21. Insulator; 22. Limiting connecting threaded rod; 23. Vibration damping assembly; 231. Vibration damper; 232. Vibration damping telescopic spring; 233. Positioning post; 234. Connecting bolt; 235. Threaded hole; 24. Bearing plate; 25. End limiting nut; 26. Terminal block; 27. Plug slot; 28. Copper busbar; 29. ​​Connector; 210. Middle limiting nut; 211. Wiring hole; 3. Protective mechanism; 31. Rotating post; 32. Protective housing; 33. Connecting through hole; 34. Sealing gasket; 35. Limiting pin; 36. Limiting block; 37. Limiting buckle. Detailed Implementation

[0026] Please see Figure 1-6 This utility model provides a technical solution: a fixing structure for low-voltage copper busbars of a rectifier transformer, including a fixing plate 1, a low-voltage copper busbar fixing mechanism 2 and a protective mechanism 3. The low-voltage copper busbar fixing mechanism 2 is fixedly connected to the top of the fixing plate 1, and the low-voltage copper busbar fixing mechanism 2 includes insulators 21 fixedly connected to both sides of the top of the fixing plate 1.

[0027] The following section will explain the specific setup and function of its low-voltage copper busbar fixing mechanism 2 and protective mechanism 3.

[0028] In this implementation scheme: the low-voltage copper busbar fixing mechanism 2 includes a limiting connecting threaded rod 22 and a shock absorption component 23, and the shock absorption component 23 includes a shock absorption damper 231.

[0029] A bearing plate 24 is fixedly connected to the outer surface of the insulator 21. The damping assembly 23 is fixedly connected to both sides of the top of the bearing plate 24. A damping extension spring 232 is sleeved on the outer surface of the damping damper 231. A positioning post 233 is threadedly connected to the top of the damping damper 231 and the damping extension spring 232. A connecting bolt 234 is threadedly connected to both sides of the positioning post 233. The positioning post 233 is threadedly connected to the top of the damping damper 231 through the connecting bolt 234. Threaded holes 235 are opened on both sides of the positioning post 233. The limiting connecting threaded rod 22 is threadedly connected to the inside of the positioning post 233 through the threaded holes 235.

[0030] The effects achieved by the above components are as follows: the bearing plate 24 provides a stable installation base for the damping assembly 23, ensuring that the damping assembly 23 can act stably on the subsequent structure; the damping damper 231 and the damping extension spring 232 work together to effectively absorb and buffer the vibration generated by the copper busbar 28 during operation, reducing the impact of vibration on the overall structure; the positioning column 233 is connected to the damping damper 231 through the connecting bolt 234, which not only ensures the stability of the connection, but also facilitates disassembly and maintenance; the limiting connecting threaded rod 22 is connected to the positioning column 233 through the threaded hole 235, realizing the initial limiting and fixing of the copper busbar 28, laying the foundation for further fixing of the copper busbar 28.

[0031] Specifically, the two ends of the limiting connecting threaded rod 22 are threadedly connected to end limiting nuts 25, and the limiting connecting threaded rod 22 is threadedly connected to the inside of the positioning post 233 through the end limiting nuts 25.

[0032] The effect achieved by the above components is that the end limiting nut 25 can firmly lock the limiting connecting threaded rod 22 in the positioning post 233, preventing the limiting connecting threaded rod 22 from loosening or coming out of the positioning post 233 due to vibration or other factors during equipment operation, further enhancing the stability of the connection between the limiting connecting threaded rod 22 and the positioning post 233, and ensuring the reliability of the entire fixed structure.

[0033] Specifically, the insulator 21 is fixedly connected to the two ends of the terminal block 26. The top terminal block 26 has a plug slot 27 inside. A copper busbar 28 is plugged into the plug slot 27. The bottom sides of the copper busbar 28 are threaded with connectors 29. The copper busbar 28 is threaded to the top of the insulator 21 through the connectors 29.

[0034] The effects achieved by the above components are as follows: the terminal block 26 provides a connection point for the installation of the copper busbar 28; the plug slot 27 facilitates the quick positioning and initial installation of the copper busbar 28, improving installation efficiency; the connector 29 firmly connects the copper busbar 28 to the top of the insulator 21, enabling the copper busbar 28 to be stably fixed on the insulator 21; at the same time, the threaded connection method facilitates the disassembly and replacement of the copper busbar 28, making it convenient for later maintenance and adjustment.

[0035] Specifically, the limiting connecting threaded rod 22 is threaded to both sides of the top of the copper busbar 28, and the outer surface of the limiting connecting threaded rod 22 is threaded with a middle limiting nut 210. The copper busbar 28 is threaded to the outer surface of the connecting threaded rod through the middle limiting nut 210, and a wiring hole 211 is opened on the top of the copper busbar 28.

[0036] The effects achieved by the above components are as follows: the limiting connecting threaded rod 22 further limits the copper busbar 28 from both sides of the top of the copper busbar 28, and the middle limiting nut 210 can firmly fix the copper busbar 28 on the limiting connecting threaded rod 22 to prevent the copper busbar 28 from shifting in the vertical direction. It cooperates with the bottom connecting piece 29 to form a three-dimensional fixation of the copper busbar 28, which greatly enhances the stability of the installation of the copper busbar 28. The wiring hole 211 provides an interface for the connection of external lines to the copper busbar 28, which facilitates the connection and layout of the lines.

[0037] Specifically, the protective mechanism 3 includes a rotating column 31 rotatably connected to both sides of the fixed plate 1. A protective shell 32 is rotatably connected to the outer surface of the rotating column 31. The protective shell 32 and the rotating column 31 are symmetrically arranged on both sides of the fixed plate 1. A connecting through hole 33 is provided at the connection between the protective shell 32 and the limiting connecting threaded rod 22 and the copper busbar 28.

[0038] The effects achieved by the above components are as follows: the rotating column 31 provides a fulcrum for the protective housing 32, allowing the protective housing 32 to rotate around the rotating column 31, which facilitates opening and closing of the protective housing 32 and makes it convenient to inspect and maintain the internal structure. The symmetrically arranged protective housing 32 can fully enclose the low-voltage copper busbar fixing mechanism 2 from both sides. The setting of the connecting through hole 33 ensures that when the protective housing 32 is closed, the limiting connecting threaded rod 22 and the copper busbar 28 can pass through smoothly, which does not affect the normal operation of the structure and can effectively protect the internal components, blocking external debris and other interference to the internal structure.

[0039] Specifically, a sealing gasket 34 is snapped into the inside of the connecting through hole 33, and a limit pin 35 is fixedly connected to the top of the protective housing 32 on one side.

[0040] The effects achieved by the above components are as follows: the sealing gasket 34 can fill the gap between the connecting through hole 33 and the limiting connecting threaded rod 22 and copper busbar 28, which enhances the sealing performance of the protective housing 32, effectively prevents rainwater, dust and other impurities from entering the interior of the protective housing 32 through the connecting through hole 33, avoids internal components from getting damp, rusted or contaminated, and extends the service life of the components. The limiting locking post 35 provides a connection point for the connection of the two protective housings 32, which facilitates the locking of the protective housing 32.

[0041] Specifically, a limiting block 36 is fixedly connected to the top of the other protective shell 32, and a limiting buckle 37 is rotatably connected to the outer surface of the limiting block 36. The two protective shells 32 are interlocked by the limiting pins 35 and the limiting buckles 37.

[0042] The effects achieved by the above components are as follows: the limiting block 36 provides a basis for the installation and rotation of the limiting buckle 37. The limiting buckle 37 cooperates with the limiting pin 35 to firmly lock the two protective shells 32 together, ensuring the stability of the protective shell 32 in the closed state and preventing the protective shell 32 from opening accidentally when the equipment is running or subjected to external force, thus ensuring the effective performance of the protective function. At the same time, this locking method is simple to operate and facilitates quick opening and closing of the protective shell 32.

[0043] Working principle: When installing the fixing structure of the low-voltage copper busbar 28 of the rectifier transformer, first fix the fixing plate 1 in a suitable position, fix the insulator 21 on both sides of the top of the fixing plate 1 to provide insulation support for the entire structure. Then, fix the bearing plate 24 on the outer surface of the insulator 21, install the damping component 23 on both sides of the top of the bearing plate 24, connect the positioning column 233 to the top of the damping device 231 by connecting bolts 234, then pass the limiting connecting threaded rod 22 through the threaded hole 235 of the positioning column 233, and tighten the end limiting nut 25 to complete the assembly of the basic part of the low-voltage copper busbar fixing mechanism 2.

[0044] Subsequently, the copper busbar 28 is inserted into the socket 27 of the top terminal block 26 for initial positioning. The bottom sides of the copper busbar 28 are threadedly connected to the top of the insulator 21 using the connector 29 to achieve initial fixation of the copper busbar 28. Then, the limiting connecting threaded rod 22 passes through the top sides of the copper busbar 28, and the middle limiting nut 210 is screwed on to further fix the copper busbar 28 from the top, forming a three-dimensional fixed structure. External lines can be connected to the copper busbar 28 through the wiring hole 211 on the top of the copper busbar 28.

[0045] Finally, rotate the protective housings 32 on both sides so that they rotate around the rotating column 31 and align. The limiting connecting threaded rod 22 and copper busbar 28 pass through the connecting through hole 33. The sealing gasket 34 fills the gap to enhance the sealing performance. Rotate the limiting buckle 37 to engage with the limiting buckle 35, thus completing the closure and fixation of the protective housing 32.

[0046] During transformer operation, the vibration generated by the copper busbar 28 is absorbed and buffered by the damper 231 and the damping extension spring 232. The limit connecting threaded rod 22 and each limit nut ensure the stability of the copper busbar 28. The protective mechanism 3 prevents external pollutants from entering and protects the internal components. When maintenance is required, the internal structure can be operated by opening the limit buckle 37 and rotating the protective shell 32.

Claims

1. A rectifier transformer low-voltage copper bar fixing structure, comprising a fixing plate (1), a low-voltage copper bar fixing mechanism (2) and a protection mechanism (3), characterized in that: The low-voltage copper busbar fixing mechanism (2) is fixedly connected to the top of the fixing plate (1), and the low-voltage copper busbar fixing mechanism (2) includes insulators (21) fixedly connected to both sides of the top of the fixing plate (1). The low-voltage copper busbar fixing mechanism (2) includes a limiting connecting threaded rod (22) and a shock absorption assembly (23), wherein the shock absorption assembly (23) includes a shock absorption damper (231). The outer surface of the insulator (21) is fixedly connected to a bearing plate (24). The damping assembly (23) is fixedly connected to both sides of the top of the bearing plate (24). The outer surface of the damping damper (231) is fitted with a damping telescopic spring (232). The top of the damping damper (231) and the damping telescopic spring (232) are threadedly connected to a positioning post (233). The two sides of the positioning post (233) are threadedly connected to connecting bolts (234). The positioning post (233) is threadedly connected to the top of the damping damper (231) through the connecting bolts (234). Threaded holes (235) are opened on both sides of the positioning post (233). The limiting connecting threaded rod (22) is threadedly connected to the inside of the positioning post (233) through the threaded holes (235).

2. The low-voltage copper bar fixing structure of a rectifier transformer according to claim 1, characterized in that: The two ends of the limiting connecting threaded rod (22) are threadedly connected to end limiting nuts (25), and the limiting connecting threaded rod (22) is threadedly connected to the inside of the positioning post (233) through the end limiting nuts (25).

3. The low-voltage copper bar fixing structure of a rectifier transformer according to claim 1, characterized in that: The insulator (21) is fixedly connected to two ends of a terminal block (26). The top terminal block (26) has a plug slot (27) inside. A copper busbar (28) is inserted into the plug slot (27). Connectors (29) are threaded to both sides of the bottom of the copper busbar (28). The copper busbar (28) is threaded to the top of the insulator (21) through the connectors (29).

4. The fixing structure for the low-voltage copper busbar of a rectifier transformer according to claim 1, characterized in that: The limiting connecting threaded rod (22) is threaded to both sides of the top of the copper busbar (28). The outer surface of the limiting connecting threaded rod (22) is threaded with a middle limiting nut (210). The copper busbar (28) is threaded to the outer surface of the connecting threaded rod (22) through the middle limiting nut (210). A wiring hole (211) is opened at the top of the copper busbar (28).

5. The low-voltage copper bar fixing structure of a rectifier transformer according to claim 1, characterized in that: The protective mechanism (3) includes a rotating column (31) rotatably connected to both sides of the fixed plate (1). A protective shell (32) is rotatably connected to the outer surface of the rotating column (31). The protective shell (32) and the rotating column (31) are symmetrically arranged on both sides of the fixed plate (1). A connecting through hole (33) is provided at the connection between the protective shell (32) and the limiting connecting threaded rod (22) and the copper busbar (28).

6. The low-voltage copper bar fixing structure of a rectifier transformer according to claim 5, characterized in that: A sealing gasket (34) is snapped into the inside of the connecting through hole (33), and a limit pin (35) is fixedly connected to the top of the protective shell (32) on one side.

7. The low-voltage copper bar fixing structure of a rectifier transformer according to claim 6, characterized in that: The other side protection shell (32) is fixedly connected with a limiting block (36) at the top, the outer surface of the limiting block (36) is rotationally connected with a limiting buckle (37), and the two side protection shells (32) are clamped with each other through the limiting clamping column (35) and the limiting buckle (37).

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