A high-voltage high-power rectifier cabinet live monitoring device
Patent Information
- Application Number
- CN202522266599.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-10-27
AI Technical Summary
一直以来高压带电作业具有较高的危险性，在过往的高压带电作业中，准确判断高压设备是否带电对保障人员安全至关重要
[0010]1）本实用新型可直接观察高压大功率整流柜柜壳表面，警示效果显著；
Smart Images
Figure CN224921936U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rectifier cabinet live monitoring technology, and in particular to a high-voltage, high-power rectifier cabinet live monitoring device. Background Technology
[0002] In high-voltage, high-power rectifier systems, monitoring the DC-side high voltage plays a crucial role in ensuring the stable operation of power equipment and preventing potential safety hazards. High-voltage live-line work has always been highly dangerous; in past high-voltage live-line work experiences, accurately determining whether high-voltage equipment is energized has been paramount to ensuring personnel safety.
[0003] Therefore, how to effectively and intuitively warn whether the DC high voltage in the high-voltage, high-power rectifier cabinet is disconnected, and more reliably ensure the safety of personnel during on-site maintenance and their lives, has become an important issue that urgently needs to be addressed. Utility Model Content
[0004] The technical problem solved by this utility model is to provide a live monitoring device for a high-voltage, high-power rectifier cabinet, so as to solve the problems in the background art mentioned above.
[0005] The technical problem solved by this utility model is achieved by the following technical solution: A high-voltage, high-power rectifier cabinet live-line monitoring device includes a rectifier cabinet body and an indicator light module. The indicator light module is connected in parallel to a rectifier cabinet busbar disposed inside the rectifier cabinet body. The indicator light module includes a series voltage divider resistor, a parallel voltage divider resistor, a Zener diode, an energy storage capacitor, and an indicator light source. The positive input terminal of the rectifier cabinet busbar is connected to the positive terminal of the indicator light module. A series voltage divider resistor is disposed on the positive terminal of the indicator light module. The negative input terminal of the rectifier cabinet busbar is connected to the negative terminal of the indicator light module. A parallel voltage divider resistor, an energy storage capacitor, a Zener diode, and an indicator light source are connected in parallel between the series voltage divider resistor and the negative terminal of the indicator light module.
[0006] In this invention, the indicator light source includes an ultra-bright red indicator light and a reverse parallel diode. The ultra-bright red indicator light and the reverse parallel diode are connected in parallel between the positive terminal and the negative terminal of the indicator light module located at the rear end of the Zener diode.
[0007] In this invention, the ultra-bright red indicator light is an ultra-bright red laser indicator light, and the reverse parallel diode is used to protect the ultra-bright red indicator light.
[0008] In this invention, the series voltage divider resistor and the parallel voltage divider resistor are high-power voltage divider resistors, with the series voltage divider resistor being 100kΩ / 100W and the parallel voltage divider resistor being 2.4kΩ / 10W.
[0009] In this invention, when the busbar of the high-voltage, high-power rectifier cabinet is energized, voltage is divided by the series and parallel voltage divider resistors set in the indicator light module. The ultra-bright red indicator light is connected in parallel between the positive and negative terminals of the indicator light module located at the rear end of the Zener diode. Energy is stored by the energy storage capacitor. After the Zener diode stabilizes the voltage, the ultra-bright red indicator light will continuously and stably emit red light, illuminating the entire surface of the rectifier cabinet, warning that this high-voltage, high-power rectifier cabinet is energized. Beneficial effects
[0010] 1) This utility model allows direct observation of the surface of the high-voltage, high-power rectifier cabinet shell, providing a significant warning effect; 2) This utility model is economical and practical, and has a simple structure; 3) This utility model has strong anti-interference capabilities and wide applicability; 4) This utility model has strong safety features and effectively ensures the safety of operators; 5) This utility model has low energy consumption and meets the requirements of energy conservation and emission reduction. Attached Figure Description
[0011] Figure 1 This is a block diagram of a preferred embodiment of the present invention.
[0012] Figure 2 This is a schematic diagram of the indicator light module structure in a preferred embodiment of the present invention. Detailed Implementation
[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.
[0014] See Figures 1-2 A high-voltage, high-power rectifier cabinet live monitoring device includes a rectifier cabinet body 1 and an indicator light module 2. The indicator light module 2 is connected in parallel to the rectifier cabinet busbar inside the rectifier cabinet body 1. The indicator light module 2 includes a series voltage divider resistor R1, a parallel voltage divider resistor R2, a Zener diode D1, an energy storage capacitor C1, and an indicator light source 5. The positive input terminal 3 of the rectifier cabinet busbar is connected to the positive terminal of the indicator light module 2. The positive terminal of the indicator light module 2 is provided with a series voltage divider resistor R1. The negative input terminal 4 of the rectifier cabinet busbar is connected to the negative terminal of the indicator light module 2. A parallel voltage divider resistor R2, an energy storage capacitor C1, a Zener diode D1, and an indicator light source 5 are connected in parallel between the series voltage divider resistor R1 and the negative terminal of the indicator light module 2.
[0015] In this embodiment, the indicator light source 5 includes an ultra-bright red indicator light H1 and a reverse parallel diode D2. The ultra-bright red indicator light H1 and the reverse parallel diode D2 are connected in parallel between the positive terminal and the negative terminal of the indicator light module 2 located at the rear end of the Zener diode D1.
[0016] In this embodiment, the ultra-bright red indicator light H1 is an ultra-bright red laser indicator light, and the reverse parallel diode D2 is used to protect the ultra-bright red indicator light H1.
[0017] In this embodiment, the series voltage divider resistor R1 and the parallel voltage divider resistor R2 are high-power voltage divider resistors, and the series voltage divider resistor R1 is 100kΩ / 100W, and the parallel voltage divider resistor R2 is 2.4kΩ / 10W.
[0018] In this embodiment, the Zener diode D1 is model IN5361B.
[0019] In this embodiment, the energy storage capacitor C1 is a 4700uF / 100V capacitor.
[0020] In this embodiment, when the busbar of the high-voltage, high-power rectifier cabinet is energized, the voltage is divided by the series voltage divider resistor R1 and the parallel voltage divider resistor R2 set in the indicator module 2. The ultra-bright red indicator light H1 is connected in parallel between the positive and negative terminals of the indicator module 2 located at the rear end of the Zener diode D1. Energy is stored by the energy storage capacitor C1. After the Zener diode D1 stabilizes the voltage, the ultra-bright red indicator light H1 will continuously and stably emit red light, illuminating the entire surface of the rectifier cabinet 1, warning that this high-voltage, high-power rectifier cabinet is energized.
[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A live-line monitoring device for a high-voltage, high-power rectifier cabinet, comprising a rectifier cabinet body and an indicator light module, characterized in that, The indicator light module is connected in parallel to the rectifier cabinet busbar inside the rectifier cabinet. The indicator light module includes a series voltage divider resistor, a parallel voltage divider resistor, a Zener diode, an energy storage capacitor, and an indicator light source. The positive input terminal of the rectifier cabinet busbar is connected to the positive terminal of the indicator light module. A series voltage divider resistor is installed on the positive terminal of the indicator light module. The negative input terminal of the rectifier cabinet busbar is connected to the negative terminal of the indicator light module. A parallel voltage divider resistor, an energy storage capacitor, a Zener diode, and an indicator light source are connected in parallel between the series voltage divider resistor and the negative terminal of the indicator light module.
2. The live-line monitoring device for a high-voltage, high-power rectifier cabinet according to claim 1, characterized in that, The indicator light source includes an ultra-bright red indicator light and a reverse parallel diode. The ultra-bright red indicator light and the reverse parallel diode are connected in parallel between the positive terminal and the negative terminal of the indicator light module located at the rear end of the Zener diode.
3. The live-line monitoring device for a high-voltage, high-power rectifier cabinet according to claim 2, characterized in that, The ultra-bright red indicator light is an ultra-bright red laser indicator light.
4. The live-line monitoring device for a high-voltage, high-power rectifier cabinet according to claim 1, characterized in that, The series voltage divider resistors and the parallel voltage divider resistors are high-power voltage divider resistors.