Thyristor fling-cut switch comprehensive test bench

Abstract

The utility model discloses a thyristor fling-cut switch comprehensive test bench, which comprises an operation bench, a PLC control system and a cover body, the PLC control system is fixedly arranged at the upper end of the left side in the operation bench, and the cover body is fixedly arranged at the right side of the top of the operation bench. According to the utility model, through the design of a switching function, a circuit between the detected thyristor fling-cut switch and the PLC control system can be cut off firstly, and then the to-be-detected thyristor fling-cut switch is in circuit connection with the PLC control system, so that the detection efficiency of the thyristor fling-cut switch is improved by using the device provided by the utility model, and the detection efficiency of the thyristor fling-cut switch is improved. And the working difficulty and the working strength of workers are also reduced. According to the utility model, through the design of a monitoring function, when a worker opens the baffle plate by mistake, the mutual monitoring path of the first infrared sensor and the second infrared sensor is cut off, and at the moment, the PLC control system is in a self-power-off state, so that the personal safety of the worker is ensured.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically a thyristor switching integrated test bench. Background Technology

[0002] A thyristor-switched capacitor (TSC) is a power electronic device based on thyristors (such as SCRs, silicon controlled rectifiers), primarily used for dynamic reactive power compensation in power systems. It regulates the reactive power of the power grid or industrial loads by rapidly switching capacitor banks, thereby improving the power factor, stabilizing voltage, and reducing line losses.

[0003] Existing thyristor-controlled capacitor switching products require testing of various parameters, including the thyristor's operating voltage range, phase loss protection function, inrush current limiting, switching response time, switching function, electrical life, and temperature rise. A patent search reveals a document titled "A Multifunctional Thyristor Switching Test Device" (publication number "CN215526408U"). This device requires manual connection of the thyristor switching switch to the testing equipment before testing. After testing, the connection between the tested thyristor switching switch and the testing equipment must be disconnected before connecting a new thyristor switching switch. This manual connection method is time-consuming and labor-intensive, increasing the workload and reducing the efficiency of thyristor switching switch testing. Therefore, this invention designs a comprehensive thyristor switching switch testing platform to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a comprehensive test bench for thyristor switching to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a thyristor switching integrated test bench, comprising an operating table, a PLC control system, and a cover. The PLC control system is fixedly installed on the upper left side inside the operating table, and the cover is fixedly installed on the upper right side of the operating table. Baffles are connected to the left and right sides of the front end inside the cover. A mounting column is fixedly installed on the left side inside the operating table, and a connecting rod is fixedly installed on the outer wall of the mounting column. The connecting rod is connected to the PLC control system via a wire. A mounting base is fixedly installed on the upper right side of the connecting rod. Conductive pins are provided on the left and right sides inside the mounting base. A switching assembly is installed inside the operating table. The switching assembly includes a rotating rod that is connected to the right side inside the operating table. A circular plate is fixedly installed on the top of the rotating rod. A number of placement slots are integrally provided inside the circular plate. A pair of connecting pins are provided inside the placement slots and are fixedly connected to the circular plate. A motor is fixedly installed on the right side inside the operating table, and a driving gear is fixedly sleeved on the outside of the motor output end. A driven gear fixedly sleeved on the outside of the rotating rod meshes with the driving gear.

[0006] Furthermore, the mounting column, rotating rod, circular plate, and mounting base are made of insulating material, while the connecting rod and connecting pin are made of conductive material, and the connecting rod and conductive pin are connected by a wire.

[0007] Furthermore, the motor is a stepper motor, which is connected to the PLC control system via wires, and stops running after rotating 60 degrees.

[0008] Furthermore, the upper left and right sides of the mounting base are integrally provided with guide grooves, which are slidably connected to the conductive pins.

[0009] Furthermore, a limiting plate is fixedly provided in the middle of the guide groove. The limiting plate is made of insulating material. Springs are fixedly provided on the left and right sides of the outside of the limiting plate, and the end of the spring away from the limiting plate is fixedly connected to the conductive pin.

[0010] Furthermore, a limiting groove is integrally provided at the lower end of the connecting pin, and a ball bearing is connected inside the conductive pin; the ball bearing is made of metal.

[0011] Furthermore, the cover and baffle are made of transparent material, and a number of rollers are fixed at the bottom of the operating table, and the rollers have a foot brake function.

[0012] Furthermore, a first infrared sensor is fixedly installed inside the baffle on the left, and a second infrared sensor is fixedly installed inside the baffle on the right. The first infrared sensor and the second infrared sensor correspond to each other one-to-one, and the first infrared sensor and the second infrared sensor are connected to the PLC control system through wires.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By designing a switching function, this utility model can first disconnect the circuit between the detected thyristor switching switch and the PLC control system, and then connect the thyristor switching switch to be tested to the PLC control system. Thus, by using the device in this application, not only is the detection efficiency of the thyristor switching switch improved, but the difficulty and intensity of the work for the staff are also reduced.

[0015] 2. The monitoring function of this utility model is designed so that when the staff accidentally opens the barrier, the mutual monitoring path between the first infrared sensor and the second infrared sensor is interrupted. At this time, the PLC control system is in a state of automatic power-off, thereby ensuring the personal safety of the staff. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0017] Figure 1 This is a front perspective view of the thyristor switching integrated test bench of this utility model;

[0018] Figure 2 This is a three-dimensional view of the internal structure of the thyristor switching integrated test bench of this utility model;

[0019] Figure 3 This is a three-dimensional view of the circular plate and the connecting pin.

[0020] Figure 4 This is a three-dimensional view of the interior of the baffle.

[0021] Figure 5 This is a three-dimensional view of the interior of the mounting base.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Operating console, 2-PLC control system, 3-Cover, 4-Baffle, 5-Mounting column, 6-Connecting rod, 7-Mounting base, 8-Conductive pin, 9-Switching assembly, 901-Rotating rod, 902-Circular plate, 903-Placement slot, 904-Connecting pin, 905-Motor, 906-Driving gear, 907-Driven gear, 10-Guide groove, 11-Limiting plate, 12-Spring, 13-Limiting groove, 14-Roller, 15-First infrared sensor, 16-Second infrared sensor, 17-Ball bearing. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] like Figure 1 , Figure 2 , Figure 5 As shown, the thyristor switching integrated test bench includes an operating platform 1, a PLC control system 2, and a housing 3. The PLC control system 2 is fixed inside the upper left side of the operating platform 1. The housing 3 is fixed to the top right side of the operating platform 1. Baffles 4 are connected to the left and right sides of the front end inside the housing 3. A mounting column 5 is fixed inside the left side of the operating platform 1. A connecting rod 6 is fixed to the outer wall of the mounting column 5 and is connected to the PLC control system 2 by a wire. A mounting base 7 is fixed to the top right side of the connecting rod 6. Conductive pins 8 are provided on the left and right sides inside the mounting base 7. A switching component 9 is installed inside the operating platform 1. The switching component 9 includes a rotating rod 901 that is connected to the right side inside the operating platform 1. A circular plate 902 is fixedly mounted on the top of the rotating rod 901. Several placement slots 903 are integrally set inside the circular plate 902. A pair of connecting pins 904 are set inside the placement slots 903, and the connecting pins 904 are fixedly connected to the circular plate 902. A motor 905 is fixedly mounted on the right side inside the operating table 1, and a drive gear 906 is fixedly mounted on the outside of the output end of the motor 905. The driven gear 907 fixedly mounted on the outside of the rotating rod 901 meshes with the drive gear 906. The mounting column 5, the rotating rod 901, the circular plate 902 and the mounting base 7 are made of insulating material, while the connecting rod 6 and the connecting pins 904 are made of conductive material. The connecting rod 6 and the conductive pins 8 are connected by a wire.

[0027] Motor 905 is a stepper motor. Motor 905 is connected to PLC control system 2 via wires. Motor 905 stops running after rotating 60 degrees. The staff first sorts and places a large number of thyristor switching switches into their corresponding placement slots 903, and inserts the conductive plugs of the thyristor switching switches into the upper part of the connecting pins 904. At this time, the connecting pins 904 on the left side contact the conductive pins 8 on the left and right sides inside the mounting base 7, thus connecting the left thyristor switching switch to the PLC control system 2 circuit. The staff then closes the baffle 4 and uses the PLC control system 2 to test the left thyristor switching switches for rated high current, low current, power supply fluctuation, power grid phase loss, and over-temperature. After the test is completed, the staff starts the motor 905. The motor 905 drives the drive gear 906 to drive the driven gear 907, which in turn drives the rotating rod 901 and the circular plate 902 to rotate 60 degrees before stopping. At this time, the circuit between the tested thyristor switching switch and the PLC control system 2 is disconnected, and the next thyristor switching switch to be tested is connected to the PLC control system 2 circuit. In this way, a large number of thyristor switching switches are tested sequentially.

[0028] Example 2

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the upper left and right sides of the mounting base 7 are integrally provided with guide grooves 10. The guide grooves 10 are slidably connected to the conductive pins 8. The middle of the guide grooves 10 is fixedly provided with a limiting plate 11. The limiting plate 11 is made of insulating material. The left and right sides of the limiting plate 11 are fixedly provided with springs 12. The end of the springs 12 away from the limiting plate 11 is fixedly connected to the conductive pins 8. The lower end of the connecting pin 904 is integrally provided with a limiting groove 13. The conductive pin 8 is connected with a ball bearing 17. The ball bearing 17 is made of metal. The cover 3 and the baffle 4 are both made of transparent material. A number of rollers 14 are fixedly provided at the bottom of the operating table 1. The rollers 14 have a foot brake function. The first infrared sensor 15 is fixedly provided inside the left baffle 4. The second infrared sensor 16 is fixedly provided inside the right baffle 4. The first infrared sensor 15 and the second infrared sensor 16 correspond to each other one by one. The first infrared sensor 15 and the second infrared sensor 16 are connected to the PLC control system 2 through wires.

[0030] According to the operation method in Embodiment 1, when the outer wall of the connecting pin 904 applies pressure to the ball 17, the ball 17 drives the conductive pin 8 to move along the direction of the limiting plate 11, and the spring 12 deforms. When the limiting groove 13 and the ball 17 overlap, the spring 12's rebound force causes the conductive pin 8 to drive the ball 17 into the limiting groove 13. This is to improve the stability of the contact between the connecting pin 904 and the conductive pin 8, prevent poor contact, and ensure the stability of the thyristor switching switch detection. If the baffle 4 is accidentally opened during the thyristor switching switch detection process, the mutual monitoring path of the first infrared sensor 15 and the second infrared sensor 16 is interrupted, and the PLC control system 2 automatically cuts off power, protecting the personal safety of the personnel. The roller 14 can move the position of the operating table 1.

Claims

1. A comprehensive test platform for thyristor switching switches, comprising an operating table (1), a PLC control system (2) and a cover body (3), characterized in that: The PLC control system (2) is fixed inside the upper left side of the operating table (1). The cover (3) is fixed on the top right side of the operating table (1). Baffles (4) are connected to the left and right sides of the front end of the cover (3). A mounting column (5) is fixed inside the left side of the operating table (1). A connecting rod (6) is fixed on the outer wall of the mounting column (5). The connecting rod (6) is connected to the PLC control system (2) through a wire. A mounting seat (7) is fixed on the top right side of the connecting rod (6). Conductive pins (8) are provided on the left and right sides inside the mounting seat (7). A switching component (9) is provided inside the operating table (1). The switching component (9) includes... A rotating rod (901) is connected to the right side inside the operating table (1). A circular plate (902) is fixedly provided on the top of the rotating rod (901). A number of placement slots (903) are integrally provided inside the circular plate (902). A pair of connecting pins (904) are provided inside the placement slots (903), and the connecting pins (904) are fixedly connected to the circular plate (902). A motor (905) is fixedly provided on the right side inside the operating table (1), and a drive gear (906) is fixedly sleeved on the outside of the output end of the motor (905). A driven gear (907) fixedly sleeved on the outside of the rotating rod (901) meshes with the gear teeth of the drive gear (906).

2. The thyristor switch integrated test platform according to claim 1, characterized in that: The mounting post (5), rotating rod (901), circular plate (902) and mounting base (7) are made of insulating material, while the connecting rod (6) and connecting pin (904) are made of conductive material. The connecting rod (6) and the conductive pin (8) are connected by a wire.

3. The test platform of claim 1, wherein: The motor (905) is a stepper motor. The motor (905) is connected to the PLC control system (2) via wires. The motor (905) stops running after rotating 60 degrees.

4. The thyristor switch integrated test platform of claim 1, wherein: The mounting base (7) has guide grooves (10) integrally provided on the upper left and right sides inside, and the guide grooves (10) are slidably connected to the conductive pins (8).

5. The thyristor switch integrated test bench according to claim 4, characterized in that: A limiting plate (11) is fixedly provided in the middle of the guide groove (10). The limiting plate (11) is made of insulating material. Springs (12) are fixedly provided on the left and right sides of the outside of the limiting plate (11), and the end of the spring (12) away from the limiting plate (11) is fixedly connected to the conductive pin (8).

6. The thyristor switching integrated test bench according to claim 1, characterized in that: The lower end of the connecting pin (904) is integrally provided with a limiting groove (13), and the conductive pin (8) is internally connected with a ball (17), which is made of metal.

7. The thyristor switch integrated test bench according to claim 1, characterized in that: The cover (3) and the baffle (4) are both made of transparent material. The bottom of the operating table (1) is fixed with a number of rollers (14), and the rollers (14) have a foot brake function.

8. The thyristor switch integrated test bench according to claim 1, characterized in that: A first infrared sensor (15) is fixed inside the baffle (4) on the left side, and a second infrared sensor (16) is fixed inside the baffle (4) on the right side. The first infrared sensor (15) and the second infrared sensor (16) correspond to each other one by one, and the first infrared sensor (15) and the second infrared sensor (16) are connected to the PLC control system (2) through wires.

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