Circuit breaker pressure spring monitoring device

Abstract

The utility model provides a circuit breaker pressure spring monitoring device, comprising a pressure spring assembly, the pressure spring assembly comprises two spring end seats and a pressure spring body, and the spring end seats are arranged at two ends. Compared with the prior art, the pressure spring assembly and the monitoring assembly are additionally arranged, the monitoring assembly is connected with the spring end seat, the deformation condition of the spring body is judged through the laser displacement sensor, and the laser displacement sensor is clamped and installed in the monitoring box body through the fixing seat. The pressure spring assembly and the monitoring assembly are additionally arranged, a limiting block and a limiting groove are embedded, a mounting plate is embedded into a mounting groove, then bolts are used for connection and fixation, and the relative position between the monitoring assembly and the pressure spring assembly can be kept.

Description

A circuit breaker pressure spring monitoring device Technical Field

[0001] This utility model belongs to the field of circuit breaker technology, and specifically relates to a circuit breaker pressure spring monitoring device. Background Technology

[0002] In GIS (Gas Insulated Switchgear), various electrical components are used, including circuit breakers, which are switching devices capable of closing, carrying, and interrupting current under normal circuit conditions and closing, carrying, and interrupting current under abnormal circuit conditions within a specified time. As a key device in the control and protection circuits of a power system, the pressure spring of the circuit breaker plays a crucial role in providing power for opening and closing operations. The stability of the spring performance directly affects whether the circuit breaker can quickly and accurately interrupt fault currents, ensuring the safe operation of the power system. However, traditional pressure spring monitoring methods have many shortcomings and cannot meet the high reliability requirements of modern power systems. For example, there is the problem of limited monitoring methods. Traditional monitoring mainly relies on regular manual inspections, judging by observing the appearance of the spring (such as whether there are cracks or deformation) or measuring the spring length with simple tools. This method is highly subjective, inefficient, and cannot obtain the dynamic parameters of the spring during operation in real time. For example, it cannot accurately know the stress changes of the spring after frequent opening and closing operations. Due to the lack of real-time monitoring of spring performance, faults are only discovered when the spring shows obvious damage (such as breakage) or causes abnormal opening and closing of the circuit breaker. At this point, the fault has often already had a certain impact on the power system, and may even cause serious accidents such as large-scale power outages, making early warning and preventive maintenance impossible.

[0003] In summary, we hope to propose a new structure to solve the aforementioned technical problems. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a circuit breaker pressure spring monitoring device to solve the problems mentioned in the background technology.

[0005] This utility model is achieved through the following technical solution: a circuit breaker pressure spring monitoring device, comprising: a pressure spring assembly, wherein the pressure spring assembly includes a spring end seat and a pressure spring body, the spring end seat is provided in two sets and located at both ends, the pressure spring body is fixedly connected between the two sets of spring end seats, and a monitoring component for monitoring the performance of the pressure spring body during use is fixedly connected to the right side of the spring end seat, the monitoring component includes a monitoring box, a damping shock absorber fixing seat and a laser displacement sensor;

[0006] The upper inner side of the monitoring box has an installation cavity for installing a laser displacement sensor. A set of damping shock absorbers for vibration mitigation is fixedly connected to both the front and rear ends of the installation cavity. A fixed base is fixedly connected to the end of the damping shock absorber near the center of the monitoring box. A laser displacement sensor for monitoring deformation is fixedly connected between the two sets of fixed bases.

[0007] In a preferred embodiment, a maintenance plate is fixedly connected to the right end of the mounting cavity, and a damping liquid cavity is provided at the lower inner side of the monitoring box.

[0008] In a preferred embodiment, a partition is fixedly connected between the mounting cavity and the damping fluid cavity. The upper surface of the partition has a collection groove with a trapezoidal cross-section that is wider at the top and narrower at the bottom. The damping fluid cavity is filled with damping fluid.

[0009] In a preferred embodiment, a damping rope is fixedly connected to the lower surface of the fixed base at the lower end, and a damping ball for assisting in shock absorption and mitigation is fixedly connected below the damping rope. The damping ball is suspended in the damping fluid and is placed in the damping fluid and connected to the fixed base via the damping rope, so that the laser displacement sensor held by the fixed base can reduce sway through the damping ball and the damping fluid.

[0010] In a preferred embodiment, a set of clamping plates is fixedly connected to both the upper and lower ends of the fixed base. The two sets of fixed bases clamp the laser displacement sensor and the clamping plates distributed in the front and rear are fixedly connected by bolts.

[0011] As a preferred embodiment, a temperature and humidity monitoring seat is also provided on the lower right side of the monitoring box for monitoring the temperature and humidity inside the circuit breaker. A temperature sensor is fixedly connected to the upper inner side of the temperature and humidity monitoring seat, and a humidity sensor is fixedly connected to the lower part of the temperature sensor. The temperature and humidity monitoring seat is fixed to the cavity where the pressure spring assembly is located inside the circuit breaker, and the temperature and humidity inside this cavity are monitored to determine the temperature and humidity of the area where the pressure spring assembly is located.

[0012] In a preferred embodiment, the spring end seat has a mounting groove on the side away from the center of the pressure spring assembly, a limit groove is provided on the right side of the spring end seat, and a mounting plate is fixedly connected to the upper left side of the monitoring box.

[0013] In a preferred embodiment, a limiting block is fixedly connected to the lower surface of the mounting plate, and mounting threaded holes are provided on the upper surfaces of the mounting plate and the mounting groove. The limiting block and the limiting groove are movably interlocked, and the mounting plate and the mounting groove are then connected and fixed with bolts. The mounting plate is embedded in the mounting groove by the limiting block and the limiting groove, and then fixed with bolts, which can maintain the relative position between the monitoring component and the pressure spring component.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are:

[0015] 1. By adding a pressure spring assembly and a monitoring assembly, the monitoring assembly is connected to the spring end seat. The deformation of the spring body is determined by a laser displacement sensor. The laser displacement sensor is clamped and installed inside the monitoring box by a fixing seat. During use, the vibration is mitigated by a damping shock absorber, thereby enabling continuous monitoring.

[0016] 2. By adding a pressure spring assembly and a monitoring assembly, the limiting block and the limiting groove are fitted together, and the mounting plate is embedded in the mounting groove. Then, bolts are used to connect and fix the mounting plate, which can maintain the relative position between the monitoring assembly and the pressure spring assembly. Attached Figure Description

[0017] 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.

[0018] Figure 1 is a schematic diagram of the overall structure of a circuit breaker pressure spring monitoring device according to this utility model.

[0019] Figure 2 is a schematic diagram of the pressure spring assembly in a circuit breaker pressure spring monitoring device of this utility model.

[0020] Figure 3 is a schematic diagram of the right side structure of the monitoring component in the circuit breaker pressure spring monitoring device of this utility model.

[0021] Figure 4 is a schematic diagram of the structure of the monitoring component in the circuit breaker pressure spring monitoring device of this utility model after removing the inspection plate.

[0022] Figure 5 is a schematic diagram of the left side structure of the monitoring component in the circuit breaker pressure spring monitoring device of this utility model.

[0023] In the figure, 100-compression spring assembly, 101-spring end seat, 102-mounting groove, 103-limiting groove, 104-mounting threaded hole, 105-compression spring body;

[0024] 200-Monitoring component, 201-Mounting plate, 202-Monitoring housing, 203-Mounting cavity, 204-Inspection plate, 205-Damping fluid cavity, 206-Damping shock absorber, 207-Fixing seat, 208-Clamping fixing plate, 209-Laser displacement sensor, 210-Damping pull rope, 211-Baffle, 212-Temperature and humidity monitoring seat, 213-Temperature sensor, 214-Humidity sensor, 215-Limit block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please refer to Figures 1-5, as the first embodiment of this utility model:

[0027] A circuit breaker pressure spring monitoring device includes: a pressure spring assembly 100, the pressure spring assembly 100 including a spring end seat 101 and a pressure spring body 105, the spring end seat 101 is provided in two sets and is located at both ends.

[0028] A pressure spring body 105 is fixedly connected between two sets of spring end seats 101. A monitoring component 200 for monitoring the performance of the pressure spring body 105 during use is fixedly connected to the right side of the spring end seat 101. The monitoring component 200 includes a monitoring box 202, a damping shock absorber 206, a fixed seat 207, and a laser displacement sensor 209.

[0029] The upper inner side of the monitoring box 202 has a mounting cavity 203 for installing the laser displacement sensor 209. A set of damping shock absorbers 206 for vibration mitigation is fixedly connected to both the front and rear ends of the mounting cavity 203. A fixing seat 207 is fixedly connected to one end of the damping shock absorber 206 near the center of the monitoring box 202. A laser displacement sensor 209 for monitoring deformation is fixedly connected between the two sets of fixing seats 207.

[0030] A maintenance plate 204 is fixedly connected to the right end of the mounting cavity 203, and a damping liquid cavity 205 is opened at the lower end of the inner side of the monitoring box 202.

[0031] A partition 211 is fixedly connected between the mounting cavity 203 and the damping fluid cavity 205. The upper surface of the partition 211 has a collection groove with a cross-section that is wider at the top and narrower at the bottom trapezoidal structure. The damping fluid cavity 205 is filled with damping fluid.

[0032] A damping rope 210 is fixedly connected to the lower surface of the lower fixed base 207. A damping ball for auxiliary shock absorption and release is fixedly connected below the damping rope 210. The damping ball is suspended in the damping fluid. The damping ball is placed in the damping fluid and connected to the fixed base 207 through the damping rope 210, so that the laser displacement sensor 209 held by the fixed base 207 can reduce shaking with the help of the damping ball and the damping fluid.

[0033] A set of clamping plates 208 are fixedly connected to both the upper and lower ends of the fixed base 207. The two sets of fixed bases 207 clamp the laser displacement sensor 209 and use bolts to fix the clamping plates 208 distributed in the front and rear.

[0034] A temperature and humidity monitoring base 212 for monitoring the temperature and humidity inside the circuit breaker is also provided on the lower right side of the monitoring box 202. A temperature sensor 213 is fixedly connected to the upper inner side of the temperature and humidity monitoring base 212, and a humidity sensor 214 is fixedly connected to the lower part of the temperature sensor 213. The temperature and humidity monitoring base 212 is fixed to the cavity where the pressure spring assembly 100 is located inside the circuit breaker, and the temperature and humidity inside this cavity are monitored to determine the temperature and humidity of the area where the pressure spring assembly 100 is located.

[0035] Specifically, the monitoring component 200 is connected to the spring end seat 101. The mounting cavity 203 inside the monitoring housing 202 holds and fixes the laser displacement sensor 209 through two sets of symmetrically arranged fixing seats 207, and fixes it through bolts via the fixing plate 208. This allows the laser displacement sensor 209 to monitor the deformation of the pressure spring body 105 during use and detect any abnormal deformation. Damping shock absorbers 206 are fixedly connected to both the front and rear sides of the fixing seat 207 to mitigate the vibration transmitted by the pressure spring assembly 100. The damping ball is placed in the damping fluid and connected to the fixing seat 207 via the damping rope 210, so that the laser displacement sensor 209 held by the fixing seat 207 can reduce shaking through the damping ball and damping fluid.

[0036] Secondly, the temperature and humidity monitoring base 212 is fixed to the cavity where the pressure spring assembly 100 is located inside the circuit breaker. The temperature and humidity of this cavity are monitored and judged to determine the temperature and humidity of the area where the pressure spring assembly 100 is located, so that the temperature and humidity of the environment where the pressure spring assembly 100 is located are monitored and used, thereby realizing continuous monitoring (the laser displacement sensor, temperature sensor and humidity sensor are selected as high-precision sensors, and the specific models can be selected from existing mature equipment on the market, as long as they meet the use of this utility model. The related connection circuits and control methods all use existing technology, which will not be described in detail here).

[0037] Please refer to Figures 1-5, as a second embodiment of this utility model:

[0038] A mounting groove 102 is provided on the side of the spring end seat 101 away from the center of the pressure spring assembly 100. A limit groove 103 is provided on the right side of the spring end seat 101. A mounting plate 201 is fixedly connected to the upper left side of the monitoring box 202.

[0039] A limiting block 215 is fixedly connected to the lower surface of the mounting plate 201. The upper surfaces of the mounting plate 201 and the mounting groove 102 are both provided with mounting thread holes 104. The limiting block 215 and the limiting groove 103 are mutually movable and interlocked, so that the mounting plate 201 and the mounting groove 102 are fitted together and then fixed with bolts. The limiting block 215 and the limiting groove 103 are interlocked, so that the mounting plate 201 is embedded in the mounting groove 102 and then fixed with bolts.

[0040] Based on the first embodiment described above, the limiting block 215 is further fitted into the limiting groove 103 and the mounting plate 201 is embedded into the mounting groove 102. Then, bolts are screwed into the mounting threaded hole 104 for connection and fixation, thereby maintaining the relative position between the monitoring component 200 and the pressure spring component 100.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circuit breaker pressure spring monitoring device, comprising: A pressure spring assembly (100) is characterized in that: the pressure spring assembly (100) includes a spring end seat (101) and a pressure spring body (105), the spring end seat (101) is provided in two sets and located at both ends; a pressure spring body (105) is fixedly connected between the two sets of spring end seats (101), and a monitoring component (200) for monitoring the performance of the pressure spring body (105) during use is fixedly connected to the right side of the spring end seat (101), the monitoring component (200) includes a monitoring housing (202) and a damping shock absorber (20... 6) Fixing base (207) and laser displacement sensor (209); The upper inner side of the monitoring box (202) is provided with a mounting cavity (203) for installing the laser displacement sensor (209). Both the front and rear ends of the mounting cavity (203) are fixedly connected to a set of damping shock absorbers (206) for vibration mitigation. The damping shock absorber (206) is fixedly connected to a fixing base (207) at the end near the center of the monitoring box (202). The laser displacement sensor (209) for monitoring deformation is fixedly connected between the two sets of fixing bases (207).

2. The circuit breaker pressure spring monitoring device as described in claim 1, characterized in that: A maintenance plate (204) is fixedly connected to the right end of the mounting cavity (203), and a damping liquid cavity (205) is opened at the lower end of the inner side of the monitoring box (202).

3. The circuit breaker pressure spring monitoring device as described in claim 2, characterized in that: A partition (211) is fixedly connected between the mounting cavity (203) and the damping fluid cavity (205). The upper surface of the partition (211) is provided with a collection groove with a cross-section that is wider at the top and narrower at the bottom trapezoidal structure. The damping fluid cavity (205) is filled with damping fluid.

4. The circuit breaker pressure spring monitoring device as described in claim 3, characterized in that: A damping rope (210) is fixedly connected to the lower surface of the fixed base (207) at the lower end. A damping ball for assisting in shock absorption and release is fixedly connected below the damping rope (210). The damping ball is suspended in the damping fluid.

5. The circuit breaker pressure spring monitoring device as described in claim 4, characterized in that: The fixed base (207) has a set of clamping plates (208) fixedly connected to both the upper and lower ends. The two sets of fixed bases (207) clamp the laser displacement sensor (209) and use bolts to fix the clamping plates (208) distributed in the front and rear.

6. The circuit breaker pressure spring monitoring device as described in claim 5, characterized in that: The monitoring box (202) is also provided with a temperature and humidity monitoring seat (212) for monitoring the temperature and humidity inside the circuit breaker. A temperature sensor (213) is fixedly connected to the upper inner side of the temperature and humidity monitoring seat (212), and a humidity sensor (214) is fixedly connected to the lower part of the temperature sensor (213).

7. The circuit breaker pressure spring monitoring device as described in claim 1, characterized in that: The spring end seat (101) has an installation groove (102) on one side away from the center of the pressure spring assembly (100), and a limit groove (103) is provided on the right side of the spring end seat (101). The monitoring box (202) is fixedly connected to the upper left side of the monitoring box (202).

8. The circuit breaker pressure spring monitoring device as described in claim 7, characterized in that: The mounting plate (201) is fixedly connected to the lower surface of the mounting plate (201). The mounting plate (201) and the mounting groove (102) are both provided with mounting thread holes (104). The limiting block (215) and the limiting groove (103) are mutually movable and interlocked, so that the mounting plate (201) and the mounting groove (102) are interlocked and then fixed by bolt connection.

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