Passive indicating device for monitoring direct-current high voltage

Abstract

The utility model relates to a passive indicating device for monitoring direct-current high voltage, which comprises a direct-current high-voltage passive indicating module, a light guide structure, a light guide fiber and an area to be monitored, and is characterized in that the direct-current high-voltage passive indicating module is provided with a direct-current high-voltage passive indicating module high-voltage input positive electrode and a direct-current high-voltage passive indicating module input negative electrode; a primary voltage-regulator tube, a constant-current diode, a secondary voltage-regulator tube and an ultra-bright light-emitting diode are arranged in the direct-current high-voltage passive indication module, and the primary voltage-regulator tube, the constant-current diode and the ultra-bright light-emitting diode are connected in series to a high-voltage input positive electrode of the direct-current high-voltage passive indication module; the secondary voltage-regulator tube is connected in parallel between the high-voltage input positive electrode of the direct-current high-voltage passive indication module and the input negative electrode of the direct-current high-voltage passive indication module; one end of the light guide structure is connected with the ultra-bright light emitting diode, and the other end of the light guide structure is connected with the to-be-monitored area through the light guide fiber. According to the utility model, whether the high-voltage equipment is electrified or not can be effectively monitored without an external power supply, and real-time monitoring can be carried out in a power equipment state.

Description

TECHNICAL FIELD

[0001] The utility model relates to high pressure monitoring technical field especially relates to a passive indicating device of monitoring direct current high pressure. BACKGROUND

[0002] In the power system, monitoring direct current high pressure has the vital role to guarantee the stable operation of power equipment, eliminates potential security hidden danger. High voltage live working has very high danger all the time, in the past high voltage live working, accurately judges whether power equipment is live, and it is crucial to guarantee the safety of operating personnel. At present, direct current high pressure monitoring mainly uses active indicating monitoring, and the operation is complicated, and the anti-interference is poor, does not meet the requirement of energy saving and emission reduction. UTILITY MODEL CONTENT

[0003] The utility model solves the technical problem in the background art, and provides a passive indicating device of monitoring direct current high pressure.

[0004] The utility model solves the technical problem by adopting the following technical scheme:

[0005] A passive indicating device of monitoring direct current high pressure, including direct current high pressure passive indicating module, light guide structure, optical fiber and the area to be monitored, wherein, direct current high pressure passive indicating module is provided with direct current high pressure passive indicating module high voltage input positive pole and direct current high pressure passive indicating module input negative pole, is provided with primary voltage stabilizing tube, constant current diode, secondary voltage stabilizing tube and ultrahigh bright emitting diode in direct current high pressure passive indicating module, and primary voltage stabilizing tube, constant current diode and ultrahigh bright emitting diode are connected in series on direct current high pressure passive indicating module high voltage input positive pole, and secondary voltage stabilizing tube is connected in parallel between direct current high pressure passive indicating module high voltage input positive pole and direct current high pressure passive indicating module input negative pole;One end of light guide structure is connected with ultrahigh bright emitting diode, and the other end of light guide structure is connected with the area to be monitored through optical fiber.

[0006] In the utility model, the reverse parallel protection diode is connected to the ultrahigh bright emitting diode, and the protection diode is used for protecting the ultrahigh bright emitting diode.

[0007] In the utility model, the current-limiting resistor is also connected in series on the direct current high pressure passive indicating module high voltage input positive pole.

[0008] In the utility model, the specific operation steps are as follows:

[0009] 1) the direct current high pressure positive pole to be monitored is connected to the direct current high pressure passive indicating module high voltage input positive pole, the direct current high pressure negative pole to be monitored is connected to the direct current high pressure passive indicating module input negative pole, then one end of the optical fiber is connected to the light guide structure, and the other end of the optical fiber is connected to the area to be monitored;

[0010] 2) When the required monitoring DC high voltage reaches a certain value, the first voltage stabilizing tube in the DC high voltage passive indication module is broken down, the super high bright light emitting diode emits light, and the area to be monitored can know that the monitoring DC high voltage is charged;

[0011] 3) When the required monitoring DC high voltage continues to increase, the current in the DC high voltage passive indication module reaches the rated current of the constant current diode, the constant current diode stabilizes the current output, and protects the super high bright light emitting diode in the subsequent circuit;

[0012] 4) When the required monitoring DC high voltage continues to increase, the second voltage stabilizing tube in the DC high voltage passive indication module is broken down to protect the constant current diode and the super high bright light emitting diode in the subsequent circuit.

[0013] Beneficial effects: the utility model discloses under the condition of no external power supply, can effectively monitor whether high voltage equipment is electrified, especially under the condition of power failure, the existing non-contact sensor cannot judge whether high voltage equipment is electrified, has the following advantages:

[0014] 1, small, light, convenient to carry;

[0015] 2, economic and practical, simple structure;

[0016] 3, strong anti-interference, applicable to various environments;

[0017] 4, almost no energy consumption, meet the requirements of energy saving and emission reduction;

[0018] 5, safety is enhanced, effectively guarantees the safety of operating personnel;

[0019] 6, solid and durable, long service life;

[0020] The utility model can satisfy the demand of real-time monitoring of the state of power equipment under complex or severe environment. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the connection schematic drawing of preferable embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative characteristics, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0023] Referring to Figure 1The passive indicator device for monitoring DC high voltage, as shown, includes a DC high voltage passive indicator module with a high voltage input positive terminal 1, a DC high voltage passive indicator module with a low input negative terminal 2, a DC high voltage passive indicator module 3, a light guide structure 4, an optical fiber 5, and a monitoring area 6. The DC high voltage passive indicator module 3 contains a current-limiting resistor R1, a first-stage Zener diode D1, a constant-current diode D2, a protection diode D3, a second-stage Zener diode D4, and an ultra-high brightness LED1. The current-limiting resistor R1, the first-stage Zener diode D1, the constant-current diode D2, and the ultra-high brightness LED1 are connected in series with the DC high voltage passive indicator module with a high voltage input positive terminal 1. The second-stage Zener diode D4 is connected in parallel between the DC high voltage passive indicator module with a high voltage input positive terminal 1 and the DC high voltage passive indicator module with a low input negative terminal 2. The protection diode D3 is connected in reverse parallel with the ultra-high brightness LED1 to protect the ultra-high brightness LED1. One end of the light guide structure 4 is connected to the ultra-high brightness LED1, and the other end of the light guide structure 4 is connected to the monitoring area 6 via the optical fiber 5.

[0024] In this embodiment, the specific operation steps are as follows:

[0025] 1) such as Figure 1 As shown, the positive terminal of the DC high voltage to be monitored is connected to the positive terminal 1 of the DC high voltage passive indicator module, and the negative terminal of the DC high voltage to be monitored is connected to the negative terminal 2 of the DC high voltage passive indicator module. Then, one end of the optical fiber 5 is connected to the light guide structure 4, and the other end of the optical fiber 5 is connected to the area to be monitored 6.

[0026] 2) When the required DC high voltage reaches a certain value, the first-stage Zener diode D1 in the DC high voltage passive indicator module 3 is broken down, and the ultra-bright LED1 lights up, indicating that the monitored DC high voltage is energized in the monitoring area 6.

[0027] 3) When the required DC high voltage continues to increase, and the current in the DC high voltage passive indicator module 3 reaches the rated current of the constant current diode D2, the constant current diode D2 outputs a stable current to protect the ultra-bright LED1 in the subsequent circuit.

[0028] 4) When the required DC high voltage continues to increase, the secondary Zener diode D4 in the DC high voltage passive indicator module 3 is broken down to protect the constant current diode D2 and the ultra-bright light-emitting diode LED1 in the subsequent circuit.

[0029] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A passive indicator device for monitoring DC high voltage, comprising a DC high voltage passive indicator module, a light guiding structure, an optical fiber, and a monitoring area, characterized in that, The DC high-voltage passive indicator module is equipped with a high-voltage input positive terminal and a DC high-voltage passive indicator module input negative terminal. Inside the DC high-voltage passive indicator module are a first-stage Zener diode, a constant-current diode, a second-stage Zener diode, and an ultra-high-brightness LED. The first-stage Zener diode, constant-current diode, and ultra-high-brightness LED are connected in series with the high-voltage input positive terminal of the DC high-voltage passive indicator module, while the second-stage Zener diode is connected in parallel between the high-voltage input positive terminal and the DC high-voltage passive indicator module input negative terminal. One end of the light guide structure is connected to the ultra-high-brightness LED, and the other end of the light guide structure is connected to the area to be monitored via an optical fiber.

2. The passive indicating device for monitoring DC high voltage according to claim 1, characterized in that, A protection diode is connected in reverse parallel to the ultra-high brightness light-emitting diode.

3. The passive indicating device for monitoring DC high voltage according to claim 1, characterized in that, A current-limiting resistor is also connected in series on the positive terminal of the high voltage input of the DC high voltage passive indicator module.

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