Overvoltage suppression cabinet
By designing an overvoltage suppression cabinet, which utilizes electromagnetic force to quickly suppress overvoltage and is equipped with a real-time monitoring system, the problems of incomplete protection and untimely monitoring of traditional equipment are solved, thus realizing the intelligent and efficient operation of the power system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING BANGXING ELECTRIC CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional overvoltage protection devices have limited functionality, cannot fully cover the protection range, have blind spots, and lack real-time monitoring and remote communication capabilities, thus failing to meet the intelligent and efficient operation requirements of modern power systems.
An overvoltage suppression cabinet was designed, comprising components such as a partition frame, suppression cavity, harmonic elimination cavity, rotating column, lever, electromagnetic plate, and spring column. It achieves rapid overvoltage suppression through electromagnetic force and is equipped with an electromagnetic sensor and a actuator for real-time monitoring and remote communication. The components adopt a disassembly and connection method for easy and quick maintenance.
It achieves comprehensive overvoltage protection, timely fault monitoring and handling, reduces maintenance difficulty and time costs, and ensures the stable operation of power equipment.
Smart Images
Figure CN224204766U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power equipment protection technology, and in particular to an overvoltage suppression cabinet. Background Technology
[0002] During the operation of a power system, abnormal voltages can be generated by lightning, switching overvoltages, resonance, and other events, posing a serious threat to power equipment.
[0003] Traditional overvoltage protection methods, such as using PT cabinets and surge arrester cabinets alone, have the problems of limited functionality and inability to fully cover the protection range, which can easily create protection blind spots. At the same time, the system oscillation problem caused by the saturation of electromagnetic PT cores is also difficult to solve effectively. In addition, traditional equipment lacks real-time monitoring and remote communication functions, and cannot detect and handle faults such as overvoltage, undervoltage, and PT disconnection in a timely manner, thus failing to meet the intelligent and efficient operation requirements of modern power systems.
[0004] Therefore, there is an urgent need for an overvoltage suppression device that integrates functions, provides comprehensive protection, and enables intelligent monitoring. Utility Model Content
[0005] The purpose of this invention is to provide an overvoltage suppression cabinet that solves the problems of incomplete overvoltage protection and untimely fault monitoring in the prior art for power equipment.
[0006] To achieve the above objectives, this utility model employs an overvoltage suppression cabinet, comprising a cabinet body and an overvoltage suppression and harmonic elimination assembly. The overvoltage suppression and harmonic elimination assembly includes a partition frame, a suppression cavity, a harmonic elimination cavity, a rotating column, a lever, an electromagnetic plate, and a spring-loaded column. The partition frame is detachably connected to the cabinet body and located inside the cabinet body. The suppression cavity is located on the lower side of the cabinet body, and also on the lower side of the partition frame. The harmonic elimination cavity is located on the lower side of the cabinet body away from the suppression cavity, and also on the lower side of the partition frame away from the suppression cavity. The rotating column is connected to the cabinet body... The body is detachably connected and located inside the lower part of the cabinet. The rotating column is located inside the suppression cavity. One end of the lever is rotatably connected to the rotating column and located above the rotating column. The electromagnetic plate is detachably connected to the partition frame and located inside the partition frame. The electromagnetic plate is located on one side above the lever. One end of the spring-loaded column is detachably connected to the cabinet and located inside the cabinet. The other end of the spring-loaded column is detachably connected to the other end of the lever and located below the end of the lever away from the rotating column. The spring-loaded column is also located inside the lower part of the suppression cavity.
[0007] The overvoltage suppression and harmonic elimination assembly further includes a actuator and an electromagnetic sensor. The actuator is detachably connected to the cabinet and is located inside the lower part of the cabinet. The actuator is located inside the harmonic elimination cavity on one side. The electromagnetic sensor is located on one side of the actuator and is also located inside the lower part of the harmonic elimination cavity on one side.
[0008] The overvoltage suppression and harmonic elimination assembly further includes a cam push rod and an iron core adjusting rod. The cam push rod is detachably connected to the transmission and is located at the upper center of the transmission. The cam push rod is also located at the inner center of the harmonic elimination cavity. The iron core adjusting rod is rotatably connected to the cam push rod and is located above the cam push rod.
[0009] The overvoltage suppression and harmonic elimination component further includes a monitoring cavity, which is located inside the cabinet and above the partition frame.
[0010] The overvoltage suppression and harmonic elimination assembly also includes a control console and a rotating door. The control console is located above the monitoring cavity. The detection end of the electromagnetic sensor passes through the partition frame and is detachably connected to the control console, and is located below the control console. The rotating door is rotatably connected to the cabinet and is located on one side of the cabinet.
[0011] This utility model discloses an overvoltage suppression cabinet, comprising a cabinet body and an overvoltage suppression and harmonic elimination assembly. The overvoltage suppression and harmonic elimination assembly includes a partition frame, a suppression cavity, a harmonic elimination cavity, a rotating column, a lever, an electromagnetic plate, and a spring-loaded column. The partition frame is detachably connected to the cabinet body and located inside the cabinet body. The suppression cavity is located on the lower side of the cabinet body, and also below the partition frame. The harmonic elimination cavity is located on the lower side of the cabinet body away from the suppression cavity, and also below the partition frame. The rotating column is detachably connected to the cabinet body and located on the lower side of the cabinet body. Inside the suppression cavity, one end of the lever is rotatably connected to the rotating column and located above the rotating column. The electromagnetic plate is detachably connected to the partition frame and located inside the partition frame, above the partition frame. The electromagnetic plate is positioned on one side above the lever. One end of the spring-loaded column is detachably connected to the cabinet and located inside the cabinet. The other end of the spring-loaded column is detachably connected to the other end of the lever and located below the end of the lever furthest from the rotating column. The spring-loaded column is also positioned inside the suppression cavity, below the interior. By adding an overvoltage suppression and harmonic elimination component, the problems of incomplete overvoltage protection and untimely fault monitoring of power equipment in the prior art are effectively solved. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a front view of the entire utility model.
[0015] Figure 3 This is a utility model Figure 2 A cross-sectional view of the AA line structure.
[0016] 101-Cabinet, 102-Divider, 103-Suppression chamber, 104-Harmonic elimination chamber, 105-Detection chamber, 106-Control console, 107-Rotating door, 108-Rotating column, 109-Lever, 110-Electromagnetic plate, 111-Rebound column, 112-Transmission device, 113-Electromagnetic sensor, 114-Cam push rod, 115-Iron core adjusting rod. Detailed Implementation
[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0018] Please see Figures 1-3 , Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a front view of the entire utility model. Figure 3 This is a utility model Figure 2 A cross-sectional view of the AA line structure.
[0019] This utility model provides an overvoltage suppression cabinet, including a cabinet body 101 and an overvoltage suppression and harmonic elimination assembly. The overvoltage suppression and harmonic elimination assembly includes a partition frame 102, a suppression cavity 103, a harmonic elimination cavity 104, a rotating column 108, a lever 109, an electromagnetic plate 110, a spring-loaded column 111, a transmission device 112, an electromagnetic sensor 113, a cam push rod 114, an iron core adjusting rod 115, a monitoring cavity 105, a control console 106, and a rotating door 107. This solution solves the problems of incomplete overvoltage protection and untimely fault monitoring in existing power equipment technologies. It is understood that this solution can address the issues of incomplete overvoltage protection and untimely fault monitoring in the system when abnormal voltages such as lightning strikes or operational overvoltages occur. When an abnormal voltage occurs, the electromagnetic force generated acts on the electromagnetic plate 110. One end of the lever 109 is rotatably connected to the rotating column 108, and the other end is pressed down under the electromagnetic force, compressing the rebound column 111. One end of the rebound column 111 is detached from the cabinet 101, and the other end is detached from the other end of the lever 109 and located inside the suppression cavity 103. The rotation of the lever 109 causes the grounding contact to quickly connect to the grounding system, conducting the overvoltage to the ground and completing the overvoltage suppression action. When the abnormal voltage disappears, the rebound column 111 recovers its deformation due to its own elasticity, driving the lever 109 to reset, waiting for the next overvoltage. If the system experiences power frequency or high frequency resonance, the resulting current change is detected by the electromagnetic sensor 113. This current change signal is transmitted to the actuator 112, which drives the cam push rod 114 to rotate. The cam push rod 114 is detachably connected to the actuator 112 and is located above the actuator 112 and within the center of the harmonic suppression cavity 104. When the cam push rod 114 rotates, it pushes the core adjusting rod 115 to move. The core adjusting rod 115 is rotatably connected to the cam push rod 114 and is located above it. By changing the air gap of the electromagnetic PT core, core saturation is avoided, thereby eliminating resonance and preventing... When the system oscillates, the control console 106 can remotely communicate the monitoring data via the RS485 interface, facilitating maintenance personnel to promptly grasp the equipment's operating status. For equipment maintenance, staff can open the rotating door 107 to inspect and replace the various components inside the cabinet 101. Since components such as the partition frame 102, the rotating column 108, and the electromagnetic plate 110 are all detachable and connectable, they are easy to disassemble and assemble quickly, reducing maintenance difficulty and time costs. This ensures that the overvoltage suppression cabinet continuously and stably provides protection for the power equipment, effectively solving the problems of incomplete overvoltage protection and untimely fault monitoring in existing technologies.
[0020] In this specific embodiment, the partition frame 102 is detachably connected to the cabinet 101 and is located inside the cabinet 101. The suppression cavity 103 is located on the lower side of the interior of the cabinet 101, and is also located below the partition frame 102. The harmonic elimination cavity 104 is located on the lower side of the cabinet 101 away from the suppression cavity 103, and is also located on the lower side of the partition frame 102 away from the suppression cavity 103. The rotating column 108 is detachably connected to the cabinet 101 and is located on the lower interior of the cabinet 101, and is located within the suppression cavity 103. Inside the cabinet, one end of the lever 109 is rotatably connected to the rotating column 108 and located above the rotating column 108. The electromagnetic plate 110 is detachably connected to the partition frame 102 and located inside the partition frame 102. The electromagnetic plate 110 is located on the side above the lever 109. One end of the spring-loaded column 111 is detachably connected to the cabinet 101 and located inside the cabinet 101. The other end of the spring-loaded column 111 is detachably connected to the other end of the lever 109 and located below the end of the lever 109 away from the rotating column 108. The spring-loaded column 111 is also located inside the suppression cavity 103.
[0021] The transmission device 112 is detachably connected to the cabinet 101 and is located inside the lower part of the cabinet 101. The transmission device 112 is located inside the harmonic elimination cavity 104 on one side. The electromagnetic sensor 113 is located on one side of the transmission device 112 and is also located inside the lower part of the harmonic elimination cavity 104.
[0022] Secondly, the cam push rod 114 is detachably connected to the transmission device 112 and is located above the center of the transmission device 112. The cam push rod 114 is located inside the harmonic elimination cavity 104. The iron core adjusting rod 115 is rotatably connected to the cam push rod 114 and is located above the cam push rod 114.
[0023] Meanwhile, the monitoring cavity 105 is located inside the cabinet 101 and above the partition frame 102.
[0024] In addition, the control console 106 is located above the monitoring cavity 105, the detection end of the electromagnetic sensor 113 passes through the partition frame 102 and is detachably connected to the control console 106, and is located below the control console 106, and the rotating door 107 is rotatably connected to the cabinet 101 and is located on one side of the cabinet 101.
[0025] When using this invention, when abnormal voltages such as lightning or operational overvoltages occur in the system, the electromagnetic force generated by the abnormal voltage acts on the electromagnetic plate 110. One end of the lever 109 is rotatably connected to the rotating column 108, and the other end is pressed down under the electromagnetic force, compressing the rebound column 111. One end of the rebound column 111 is detachably connected to the cabinet 101, and the other end is detachably connected to the other end of the lever 109 and is located inside the suppression cavity 103. The rotation of the lever 109 causes the grounding contact to quickly connect to the grounding system, conducting the overvoltage to the ground and completing the overvoltage suppression action. When the abnormal voltage disappears, the rebound column 111 recovers its deformation through its own elasticity, driving the lever 109 to reset and wait for the next overvoltage event. If the system experiences power frequency or high frequency resonance, the current change generated by the resonance is detected by the electromagnetic sensor 113, and the current change signal is transmitted to the actuator 112. The actuator 112 drives the cam push rod 114 to rotate. The cam push rod 114 and the actuator The 112 disassembly connection is located above the center of the transmission 112 and inside the harmonic suppression cavity 104. When the cam push rod 114 rotates, it pushes the iron core adjusting rod 115 to move. The iron core adjusting rod 115 is rotatably connected to the cam push rod 114 and is located above it. By changing the air gap of the electromagnetic PT iron core, the iron core saturation is avoided, thereby eliminating resonance and preventing system oscillation. The control console 106 can realize remote communication of monitoring data through the RS485 interface, which is convenient for maintenance personnel to keep abreast of the equipment operating status. In terms of equipment maintenance, the staff can open the rotating door 107 to inspect and replace the various components inside the cabinet 101. Since the components such as the partition frame 102, the rotating column 108, and the electromagnetic plate 110 are all disassembled and connected, they are convenient for quick disassembly and assembly, reducing the difficulty and time cost of maintenance, and ensuring that the overvoltage suppression cabinet continuously and stably provides protection for the power equipment. This effectively solves the problems of incomplete overvoltage protection and untimely fault monitoring of power equipment in the prior art.
[0026] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. An overvoltage suppression cabinet, comprising a cabinet body, characterized in that, It also includes an overvoltage suppression and harmonic elimination assembly, which comprises a partition frame, a suppression cavity, a harmonic elimination cavity, a rotating column, a lever, an electromagnetic plate, and a rebound column. The partition frame is detachably connected to the cabinet and is located inside the cabinet. The suppression cavity is located on the lower side of the cabinet interior, and also on the lower side of the partition frame. The harmonic elimination cavity is located on the lower side of the cabinet away from the suppression cavity, and also on the lower side of the partition frame away from the suppression cavity. The rotating column is detachably connected to the cabinet and is located inside the cabinet. The lever is located inside the lower part of the cabinet and the rotating column is disposed inside the suppression cavity. One end of the lever is rotatably connected to the rotating column and is located above the rotating column. The electromagnetic plate is detachably connected to the partition frame and is located inside the partition frame. The electromagnetic plate is disposed on one side above the lever. One end of the spring-loaded column is detachably connected to the cabinet and is located inside the cabinet. The other end of the spring-loaded column is detachably connected to the other end of the lever and is located below the end of the lever away from the rotating column. The spring-loaded column is also disposed inside the lower part of the suppression cavity.
2. The overvoltage suppression cabinet as described in claim 1, characterized in that, The overvoltage suppression and harmonic elimination assembly also includes a actuator and an electromagnetic sensor. The actuator is detachably connected to the cabinet and is located inside the lower part of the cabinet. The actuator is disposed on one side inside the harmonic elimination cavity. The electromagnetic sensor is disposed on one side of the actuator and is also disposed on the lower side inside the harmonic elimination cavity.
3. The overvoltage suppression cabinet as described in claim 2, characterized in that, The overvoltage suppression and harmonic elimination assembly also includes a cam push rod and an iron core adjusting rod. The cam push rod is detachably connected to the transmission and is located at the upper center of the transmission. The cam push rod is also located at the inner center of the harmonic elimination cavity. The iron core adjusting rod is rotatably connected to the cam push rod and is located above the cam push rod.
4. The overvoltage suppression cabinet as described in claim 3, characterized in that, The overvoltage suppression and harmonic elimination assembly also includes a monitoring cavity, which is located inside the cabinet and above the partition frame.
5. The overvoltage suppression cabinet as described in claim 4, characterized in that, The overvoltage suppression and harmonic elimination assembly also includes a control console and a rotating door. The control console is located above the monitoring cavity. The detection end of the electromagnetic sensor passes through the partition frame and is detachably connected to the control console, and is located below the control console. The rotating door is rotatably connected to the cabinet and is located on one side of the cabinet.