Test board for high-power silicon controlled rectifier

Abstract

The invention discloses a test board for a high-power silicon controlled rectifier, and relates to the technical field of high-power silicon controlled rectifiers. The test board for the high-power silicon controlled rectifier comprises a base, a fixing assembly, a test mechanism and an auxiliary assembly, a test box is fixedly installed at the top of the base, the test mechanism is arranged on the test box, the test mechanism comprises a cooling assembly and a heating assembly, the cooling assembly comprises a cooling box and a fan, the fan is arranged in the cooling box, and the heating assembly is arranged in the cooling box. The heating assembly comprises two groups of mounting plates and heating pipes, the two groups of mounting plates are symmetrically distributed, and the heating pipes are fixedly mounted on the adjacent side walls of the two groups of mounting plates. Through the arrangement of the cooling assembly and the heating assembly, the thermal environment of the equipment under normal or extreme working conditions can be simulated through high-temperature testing, the performance and reliability of the equipment under long-time high temperature can be verified, and fan cooling is beneficial to simulation of heat dissipation conditions. And the silicon controlled rectifier is ensured not to be damaged or reduced in performance due to overheating under normal heat dissipation.

Description

Technical Field

[0001] The invention relates to the technical field of high-power thyristor, in particular to a test bench for high-power thyristor. Background Art

[0002] Chinese patent document CN215415144U discloses an automatic test device for bidirectional thyristor, which belongs to the technical field of test equipment, and comprises a test box, wherein the inner cavity of the test box is provided with a bidirectional thyristor body, a light bulb is fixedly installed on the top of the test box, and a power supply is fixedly installed on the top of the test box and on one side of the light bulb; the present application connects the power supply, the bidirectional thyristor body and the light bulb in series, and when the bidirectional thyristor body works normally, the light bulb lights up, and when the bidirectional thyristor body is burned due to high temperature, it stops working and disconnects the circuit, and the light bulb goes out at this time, and the user only needs to observe whether the light bulb lights up or goes out to know whether the bidirectional thyristor body is working, and then cooperates with the thermometer to obtain the high temperature resistance limit value of the bidirectional thyristor body, and the test result can be intuitively transmitted to the operator through the light bulb and the thermometer, and the operation is very convenient.

[0003] After exploration and analysis, the patent has the following shortcomings when actually used: When conducting high temperature tests on thyristors, there is no cooling operation on the thyristors after the high temperature test, so it cannot be ensured that the thyristors will not be damaged or have performance degradation due to overheating under normal heat dissipation.

[0004] In summary, the present application now proposes a high-power thyristor test bench to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a test bench for a high-power thyristor, which can solve the problem that when a high-temperature test is performed on the thyristor, the thyristor is not cooled after the high-temperature test, thereby failing to ensure that the thyristor will not be damaged or have performance degradation due to overheating under normal heat dissipation.

[0006] To achieve the above object, the present invention provides the following technical solution: a high-power thyristor test bench, comprising: A base, with a test box fixedly mounted on the top of the base; A fixing component, which is arranged on the test box; The test mechanism is arranged on the test box, and the test mechanism includes a cooling component and a heating component. The cooling component includes a cooling box and a fan. The cooling box is provided with a fan inside. The heating component includes a mounting plate and a heating pipe. The mounting plates are provided in two groups and are symmetrically distributed. The adjacent side walls of the two groups of mounting plates are fixedly provided with heating pipes. The auxiliary component is arranged on the test box.

[0007] Preferably, a fixing plate is fixedly mounted on the rear inner wall of the test box, and a vertical plate is fixedly mounted on one side of the fixing plate.

[0008] Preferably, the fixing assembly includes a movable plate, a sliding rod and a first spring, the movable plate is arranged on the top of the fixed plate, two groups of sliding rods are fixedly installed on one side of the movable plate and are distributed front and back, the other end of the sliding rod extends to one side of the vertical plate, the outer wall of the sliding rod is sleeved with the first spring, one end of the first spring is fixedly installed on one side of the movable plate, and the other end of the first spring is fixedly installed on one side of the vertical plate. High-power thyristors may be subjected to higher voltages and currents during testing, so clamping and fixing the thyristors can ensure that they do not move or shake during the test, reduce test errors or damage caused by position changes, prevent operators from contacting high-voltage components, reduce the risk of electric shock, and at the same time ensure that the contact points and connections are stable during the test, thereby improving measurement accuracy and consistency of results, and improving test efficiency.

[0009] Preferably, a connector is fixedly installed on the other side of the vertical plate, which is configured for connection.

[0010] Preferably, a mounting seat is fixedly mounted on one outer wall of the test box, a light bulb is threadedly mounted on one end of the mounting seat, and the arrangement facilitates replacement of the light bulb. A temperature sensor is fixedly mounted on the inner top of the test box for real-time detection of the temperature inside the test box.

[0011] Preferably, the cooling component also includes an air outlet, the cooling box is fixedly installed on the inner bottom of the test box, the top of the cooling box is provided with an air outlet, and the heating tube is located above the cooling box. Through high temperature testing, the thermal environment of the equipment under normal or extreme working conditions can be simulated to help verify its performance and reliability under long-term high temperature. Fan cooling helps to simulate heat dissipation conditions to ensure that the thyristor will not be damaged or performance degraded due to overheating under normal heat dissipation. Heat dissipation through fans can accelerate the cooling process, allowing testers to complete multiple high-temperature tests in a shorter period of time, which not only improves test efficiency, but also reduces the time cost and workload of personnel required for testing. The combination of high temperature testing and fan cooling helps to improve the reliability and stability of the entire test process. At the same time, by controlling the temperature range, testers can ensure that each test step is performed in a relatively constant temperature environment to avoid inconsistent test results due to temperature fluctuations, thereby improving the credibility of the test data.

[0012] Preferably, a through hole is opened on one side of the test box, and a ventilation filter plate is provided on one outer wall of the test box to facilitate filtering of incoming wind.

[0013] Preferably, the auxiliary component includes a fixed block, a sliding block, a fixed frame, a pull rod and a second spring. A fixed block and a fixed frame are fixedly installed on one side of the test box, a sliding block is slidably installed inside the fixed frame, the ventilation filter plate is located between the fixed block and the sliding block, an opening is opened on the fixed frame, a pull rod is arranged in the opening, the other two ends of the pull rod are fixedly installed on the front side of the sliding block, a second spring is sleeved and installed on the pull rod, one end of the second spring is fixedly installed on the front side of the sliding block, and the other end of the second spring is fixedly installed on the front inner wall of the fixed frame, so that the ventilation filter plate can be elastically installed, thereby helping to maintain the stability of the ventilation filter plate, avoiding vibration or deviation caused by air flow, ensuring the stability of the filtering effect and air flow, and at the same time effectively reducing installation errors and deviations caused by vibrations, so that the ventilation filter plate can be more stably maintained in the optimal working position, thereby improving the air filtration efficiency.

[0014] Preferably, a hinged door is hingedly installed on the front side of the test box, a transparent window is inlaid on the hinged door, and a handle is fixedly installed on the front side of the hinged door to facilitate real-time detection of the test conditions inside.

[0015] Preferably, a controller and a power box are fixedly installed on the top of the base, and the connector, light bulb, fan and heating tube are all electrically connected to the controller, and the connector, light bulb, fan, heating tube and controller are all electrically connected to the power box.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The test bench for high-power thyristor uses a movable plate, a sliding rod and a first spring in combination. The high-power thyristor may be subjected to higher voltage and current during testing. Therefore, clamping and fixing the thyristor can ensure that it does not move or shake during the test, reduce test errors or damage caused by position changes, prevent operators from contacting high-voltage components, reduce the risk of electric shock, and ensure that the contact points and connections are stable during the test, thereby improving measurement accuracy and consistency of results and improving test efficiency.

[0017] (2) The test bench for the high-power thyristor, through the combined use of a cooling box, a fan, an air outlet, a mounting plate, and a heating tube, can simulate the thermal environment of the device under normal or extreme working conditions through high-temperature testing, helping to verify its performance and reliability under long-term high temperatures. The fan cooling helps to simulate the heat dissipation conditions, ensuring that the thyristor will not be damaged or its performance degraded due to overheating under normal heat dissipation. The fan cooling can accelerate the cooling process, enabling the tester to complete multiple high-temperature tests in a shorter time. This not only improves the test efficiency but also reduces the time cost required for testing and the workload of the personnel. The combined use of high-temperature testing and fan cooling helps to improve the reliability and stability of the entire test process. At the same time, by controlling the temperature range, the tester can ensure that each test step is carried out in a relatively constant temperature environment, avoiding inconsistent test results caused by temperature fluctuations, thereby improving the credibility of the test data.

[0018] (3) The test bench for the high-power thyristor, through the combined use of fixed blocks, sliding blocks, fixed frames, pull rods, and second springs, can elastically install the ventilation filter plate, thereby helping to maintain the stability of the ventilation filter plate, avoiding vibrations or displacements caused by air flow, ensuring the stability of the filtering effect and air flow, and at the same time can effectively reduce the installation error and displacement caused by vibrations. The ventilation filter plate can be more stably maintained in the optimal working position, thereby improving the air filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the drawings and embodiments: Figure 1 is a three-dimensional view of the present invention; Figure 2 is a schematic three-dimensional structure of the present invention Figure 1 ; Figure 3 is a top view of the present invention; Figure 4 is Figure 3 the A-A three-dimensional cross-sectional view of Figure 5 is a three-dimensional view of the fixing component of the present invention; Figure 6 is a schematic three-dimensional structure diagram of the fixing component of the present invention; Figure 7 is a schematic three-dimensional structure of the present invention Figure 2 .

[0020] Figure numerals: 1. base; 2. test box; 3. fixed plate; 4. vertical plate; 5. movable plate; 6. sliding rod; 7. first spring; 8. connector; 9. mounting seat; 10. bulb; 11. temperature sensor; 12. cooling box; 13. fan; 14. air outlet; 15. mounting plate; 16. heating pipe; 17. through hole; 18. ventilation filter plate; 19. fixed block; 20. sliding block; 21. fixed frame; 22. pull rod; 23. second spring; 24. hinged door; 25. controller; 26. power box; 27. transparent window; 28. handle. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0022] See also Figure 1-7 The present invention provides a technical solution: a test bench for a high-power thyristor, comprising a base 1, a fixing component, a testing mechanism and an auxiliary component. A testing box 2 is fixedly installed on the top of the base 1, the fixing component is arranged on the testing box 2, the testing mechanism is arranged on the testing box 2, the testing mechanism comprises a cooling component and a heating component, the cooling component comprises a cooling box 12 and a fan 13, the cooling box 12 is provided with a fan 13 inside, the heating component comprises a mounting plate 15 and a heating tube 16, the mounting plates 15 have two groups and are symmetrically distributed, the adjacent side walls of the two groups of mounting plates 15 are fixedly installed with the heating tube 16, and the auxiliary component is arranged on the testing box 2.

[0023] Furthermore, a fixing plate 3 is fixedly mounted on the rear inner wall of the test box 2 , and a vertical plate 4 is fixedly mounted on one side of the fixing plate 3 .

[0024] Furthermore, the fixing assembly includes a movable plate 5, a sliding rod 6 and a first spring 7. The movable plate 5 is arranged on the top of the fixed plate 3. Two groups of sliding rods 6 are fixedly installed on one side of the movable plate 5 and are distributed front and back. The other end of the sliding rod 6 extends to one side of the vertical plate 4. The outer wall of the sliding rod 6 is sleeved with a first spring 7. One end of the first spring 7 is fixedly installed on one side of the movable plate 5, and the other end of the first spring 7 is fixedly installed on one side of the vertical plate 4. The movable plate 5 is pulled to move outward and the thyristor is inserted between the vertical plate 4 and the movable plate 5. The reaction force of the first spring 7 drives the movable plate 5 to move toward the thyristor, so that it can be clamped and fixed. High-power thyristors may be subjected to higher voltages and currents during testing. Therefore, clamping and fixing the thyristors can ensure that they do not move or shake during the test process, reduce test errors or damage caused by position changes, prevent operators from contacting high-voltage components, reduce the risk of electric shock, and ensure that the contact points and connections are stable during the test, thereby improving measurement accuracy and consistency of results, and improving test efficiency.

[0025] Furthermore, a connector 8 is fixedly installed on the other side of the vertical plate 4, which is configured for connection. A mounting seat 9 is fixedly installed on the outer wall of one side of the test box 2, and a light bulb 10 is threadedly installed on one end of the mounting seat 9, which is configured to facilitate replacement of the light bulb 10. A temperature sensor 11 is fixedly installed on the inner top of the test box 2 for real-time detection of the temperature conditions inside the test box 2.

[0026] Furthermore, the cooling component also includes an air outlet 14, the cooling box 12 is fixedly installed at the inner bottom of the test box 2, the top of the cooling box 12 is provided with an air outlet 14, the heating tube 16 is located above the cooling box 12, the interior of the test box 2 is heated and heated by the heating tube 16, the temperature inside the test box 2 is detected in real time by the temperature sensor 11, when the thyristor works normally, the light bulb 10 lights up, the heating tube 16 is turned off, the fan 13 is controlled to start, and the thyristor is cooled by the fan 13, when the thyristor is damaged due to high temperature, it stops working, the connector 8 is disconnected, and the light bulb is extinguished, and the high temperature test can simulate the thermal environment of the equipment under normal or extreme working conditions, which helps Verify its performance and reliability under long-term high temperature, and fan cooling helps simulate heat dissipation conditions to ensure that the thyristor will not be damaged or its performance will not degrade due to overheating under normal heat dissipation. Fan heat dissipation can accelerate the cooling process, allowing testers to complete multiple high-temperature tests in a shorter time. This not only improves test efficiency, but also reduces the time cost and workload of testers. The combination of high-temperature testing and fan cooling helps to improve the reliability and stability of the entire test process. At the same time, by controlling the temperature range, testers can ensure that each test step is carried out in a relatively constant temperature environment to avoid inconsistent test results due to temperature fluctuations, thereby improving the credibility of the test data.

[0027] Secondly, a through hole 17 is provided on one side of the test box 2, and a ventilation filter plate 18 is provided on the outer wall of one side of the test box 2 to facilitate filtering the incoming wind. The auxiliary components include a fixed card block 19, a sliding card block 20, a fixed frame 21, a pull rod 22 and a second spring 23. A fixed card block 19 and a fixed frame 21 are fixedly installed on one side of the test box 2, and a sliding card block 20 is slidably installed inside the fixed frame 21. The ventilation filter plate 18 is located between the fixed card block 19 and the sliding card block 20. An opening is provided on the fixed frame 21, and a pull rod 22 is provided in the opening. The other two ends of the pull rod 22 are fixedly installed with the front side of the sliding card block 20. A second spring 23 is sleeved on the pull rod 22, and one end of the second spring 23 is fixedly installed with the front side of the sliding card block 20. The other end of the second spring 23 is fixedly installed on the front inner wall of the fixed frame 21. When the ventilation filter plate 18 needs to be disassembled and cleaned, the pull rod 22 is pulled to move to the front side, so that the pull rod 22 drives the sliding block 20 to move, and the grip on the ventilation filter plate 18 is held to move the ventilation filter plate 18 to the front side and pull it upward, so that the ventilation filter plate 18 can be taken out. The ventilation filter plate 18 can be elastically installed, which helps to maintain the stability of the ventilation filter plate 18 and avoid vibration or deviation caused by air flow, ensuring the filtering effect and the stability of air flow, and at the same time can effectively reduce installation errors and deviations caused by vibrations. The ventilation filter plate 18 can be more stably maintained in the optimal working position, thereby improving air filtration efficiency.

[0028] Secondly, a hinged door 24 is hingedly installed on the front side of the test box 2, and a transparent window 27 is embedded in the hinged door 24. A handle 28 is fixedly installed on the front side of the hinged door 24 to facilitate real-time detection of the internal test conditions. A controller 25 and a power box 26 are fixedly installed on the top of the base 1, and the connector 8, the light bulb 10, the fan 13 and the heating tube 16 are all electrically connected to the controller 25, and the connector 8, the light bulb 10, the fan 13, the heating tube 16 and the controller 25 are all electrically connected to the power box 26.

[0029] Working principle: When in use, pull the movable plate 5 to move outward, insert the thyristor between the vertical plate 4 and the movable plate 5, and drive the movable plate 5 to move toward the thyristor through the reaction force of the first spring 7, so that it can be clamped and fixed, so that the thyristor is connected to the light bulb 10 through the connector 8, close the hinged door 24, and control the temperature sensor 11, the fan 13 and the heating tube 16 to start through the controller 25, and heat the inside of the test box 2 through the heating tube 16. The temperature inside the test box 2 is detected in real time through the temperature sensor 11. When the thyristor works normally, the light bulb 10 lights up, then the heating tube 16 is turned off, the fan 13 is controlled to start, and the thyristor is cooled by the fan 13. When the thyristor is damaged due to high temperature, it will stop working, and the connector 8 is disconnected , so that the light bulb goes out, and the temperature sensor 11 transmits the temperature inside the test box 2 to the controller 25 for recording. When the ventilation filter plate 18 needs to be disassembled and cleaned, the pull rod 22 is pulled to move forward, so that the pull rod 22 drives the sliding block 20 to move, and the ventilation filter plate 18 can be held by holding the grip on the ventilation filter plate 18 to move the ventilation filter plate 18 to the front side and pull it upward, so that the ventilation filter plate 18 can be taken out. When installing it, the pull rod 22 is pulled to drive the sliding block 20 to move, and the ventilation filter plate 18 is placed between the fixed block 19 and the sliding block 20, and the ventilation filter plate 18 is pushed toward the inside of the fixed block 19, and then the sliding block 20 is driven by the reaction force of the second spring 23 to clamp and fix the ventilation filter plate 18.

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A test bench for high-power thyristor, characterized in that: include: A base (1), a test box (2) being fixedly mounted on the top of the base (1); A fixing component, which is arranged on the test box (2); A test mechanism, which is arranged on the test box (2), the test mechanism comprising a cooling component and a heating component, the cooling component comprising a cooling box (12) and a fan (13), the cooling box (12) being provided with a fan (13), the heating component comprising a mounting plate (15) and a heating tube (16), the mounting plates (15) being provided in two groups and being symmetrically distributed, the heating tubes (16) being fixedly mounted on adjacent side walls of the two groups of mounting plates (15); An auxiliary component is arranged on the test box (2).

2. A high-power thyristor test bench according to claim 1, characterized in that: A fixing plate (3) is fixedly mounted on the rear inner wall of the test box (2), and a vertical plate (4) is fixedly mounted on one side of the fixing plate (3).

3. A high-power thyristor test bench according to claim 2, characterized in that: The fixing assembly comprises a movable plate (5), a sliding rod (6) and a first spring (7); the movable plate (5) is arranged on the top of the fixed plate (3); two groups of sliding rods (6) are fixedly mounted on one side of the movable plate (5) and are distributed front and back; the other end of the sliding rod (6) extends to one side of the vertical plate (4); the outer wall of the sliding rod (6) is sleeved with the first spring (7); one end of the first spring (7) is fixedly mounted on one side of the movable plate (5); and the other end of the first spring (7) is fixedly mounted on one side of the vertical plate (4).

4. A high-power thyristor test bench according to claim 3, characterized in that: A connector (8) is fixedly mounted on the other side of the vertical plate (4).

5. A high-power thyristor test bench according to claim 4, characterized in that: A mounting seat (9) is fixedly mounted on one outer wall of the test box (2), a light bulb (10) is threadedly mounted on one end of the mounting seat (9), and a temperature sensor (11) is fixedly mounted on the inner top of the test box (2).

6. A high-power thyristor test bench according to claim 5, characterized in that: The cooling component further comprises an air outlet (14); the cooling box (12) is fixedly mounted on the inner bottom of the test box (2); the top of the cooling box (12) is provided with an air outlet (14); and the heating pipe (16) is located above the cooling box (12).

7. A high-power thyristor test bench according to claim 6, characterized in that: A through hole (17) is provided on one side of the test box (2), and a ventilation filter plate (18) is provided on an outer wall of one side of the test box (2).

8. A high-power thyristor test bench according to claim 7, characterized in that: The auxiliary component comprises a fixed card block (19), a sliding card block (20), a fixed frame (21), a pull rod (22) and a second spring (23). The fixed card block (19) and the fixed frame (21) are fixedly installed on one side of the test box (2). The sliding card block (20) is slidably installed inside the fixed frame (21). The ventilation filter plate (18) is located between the fixed card block (19) and the sliding card block (20). The fixed frame (21) is provided with an opening, and the pull rod (22) is arranged in the opening. The other two ends of the pull rod (22) are fixedly installed on the front side of the sliding card block (20). The second spring (23) is sleeved and installed on the pull rod (22), one end of the second spring (23) is fixedly installed on the front side of the sliding card block (20), and the other end of the second spring (23) is fixedly installed on the front inner wall of the fixed frame (21).

9. A high-power thyristor test bench according to claim 8, characterized in that: The front side of the test box (2) is hingedly mounted with a hinged door (24), a transparent window (27) is inlaid on the hinged door (24), and a handle (28) is fixedly mounted on the front side of the hinged door (24).

10. A high power thyristor test bench according to claim 9, characterized in that: A controller (25) and a power supply box (26) are fixedly mounted on the top of the base (1); the connector (8), the light bulb (10), the fan (13) and the heating tube (16) are all electrically connected to the controller (25); and the connector (8), the light bulb (10), the fan (13), the heating tube (16) and the controller (25) are all electrically connected to the power supply box (26).

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