Thyristor replacement device

Abstract

The present application discloses a thyristor replacement device, which includes a support plate, a return frame is fixed on the end of the support plate, L-shaped plates are inserted and connected on both sides of the return frame, first sliders are fixed to the vertical ends of the two L-shaped plates, a first sliding groove for the first sliding slider to slide is provided at the bottom end of the inner wall of the return frame, an opening component for driving the L-shaped plate to move is provided at the top of the support plate, a protective plate is provided at the end of the L-shaped plate located outside the return frame, and the protective plate is connected to the L-shaped plate through an elastic component; in this scheme, the return frame is first placed between the radiators at both ends of the thyristor, and then the movement of the opening component drives the movement of the L-shaped plate, the radiator can be pushed open during the movement of the L-shaped plate, and the thyristor can be replaced, and at the same time, with the cooperation of the protective plate and the elastic component, the radiator is elastically protected to avoid extrusion, deformation and damage to the radiator, thereby facilitating the replacement of the thyristor and improving the replacement efficiency of the thyristor.

Description

Technical Field

[0001] The present application relates to the technical field of thyristors, and in particular to a thyristor replacement device. Background Art

[0002] Thyristor is a switching element that can operate under high voltage and high current conditions, and its working process can be controlled. It is widely used in electronic circuits such as controlled rectification, AC voltage regulation, contactless electronic switching, inverter and frequency conversion. It is a typical device that controls large current with small current.

[0003] The existing thyristor replacement method is mainly to completely depressurize the thyristor silicon stack assembly of the converter valve, place a threaded push rod between the two heat sinks, rotate the threaded push rod to push open the heat sinks at both ends of the thyristor to be replaced, and then take out the thyristor. However, in the process of pushing open the heat sink, since there is no protective structure between the threaded push rod and the heat sink, if the force of the threaded push rod is large, it is easy to cause deformation and damage to the heat sink, which makes it inconvenient to replace the thyristor and reduces the replacement efficiency of the thyristor. Therefore, those skilled in the art provide a thyristor replacement device to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the present application provides a thyristor replacement device.

[0005] The present application provides a thyristor replacement device that adopts the following technical solution:

[0006] A thyristor replacement device comprises a support plate, a circular frame is fixed at the end of the support plate, L-shaped plates are inserted and connected on both sides of the circular frame, first sliders are fixed to the vertical ends of the two L-shaped plates, a first slide groove for sliding the first slider is provided at the bottom end of the inner wall of the circular frame, an opening component for driving the L-shaped plate to move is provided at the top of the support plate, a protective plate is provided at the end of the L-shaped plate located outside the circular frame, and the protective plate is connected to the L-shaped plate through an elastic component.

[0007] By adopting the above technical solution, the radiator can be opened by driving the movement of the L-shaped plate through the opening component. At the same time, with the cooperation of the protection plate and the elastic component, the radiator can be conveniently protected to avoid extrusion, deformation and damage to the radiator, facilitate the replacement of the thyristor, and improve the replacement efficiency of the thyristor.

[0008] Preferably, the opening assembly includes push rods hingedly arranged on one side of the two L-shaped plates, the top end of the support plate is slidably provided with a second slider hinged to the push rod, the top end of the support plate is provided with a second sliding groove for the second slider to slide, a screw rod threadably connected to the second slider is rotatably connected in the second sliding groove, and a turning handle is fixed to one end of the screw rod located outside the support plate.

[0009] By adopting the above technical solution, the movement of the opening assembly can conveniently drive the L-shaped plate to push open the heat sink, thereby facilitating the replacement of the thyristor.

[0010] Preferably, the elastic component includes a transverse plate fixedly arranged on one side of the protection plate and interlaced with the L-shaped plate, and a transverse groove for the transverse plate to be inserted is formed at the end of the L-shaped plate, and the transverse groove is fixedly connected to the transverse plate through a first spring.

[0011] By adopting the above technical solution and through the cooperation of the elastic component, it is convenient to provide elastic force to the radiator, thereby avoiding extrusion, deformation and damage to the radiator.

[0012] Preferably, a receiving box is fixed to the top of the return frame, a buffer plate is slidably provided in the receiving box, the buffer plate is connected to the receiving box through a sliding component, and a buffer component for buffering the buffer plate is provided in the receiving box.

[0013] By adopting the above technical solution, through the cooperation of the receiving box, the buffer plate and the buffer assembly, it is convenient to provide buffer protection for the thyristor when it accidentally falls, avoiding the thyristor from being damaged by falling, and prolonging the service life of the thyristor.

[0014] Preferably, the sliding assembly includes third sliding blocks fixedly arranged on both sides of the buffer plate, and both sides of the inner wall of the receiving box are provided with third sliding grooves for the third sliding blocks to slide.

[0015] By adopting the above technical solution and through the cooperation of the sliding component, it is convenient to provide auxiliary support for the buffer plate.

[0016] Preferably, the buffer assembly comprises a damper fixedly arranged between the receiving box and the buffer plate, and the outer wall of the damper is sleeved with a second spring.

[0017] By adopting the above technical solution and cooperating with the buffer assembly, it is convenient to provide buffer protection for the buffer plate.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] 1. The thyristor replacement device first places the return frame between the radiators at both ends of the thyristor, and then drives the movement of the L-shaped plate under the movement of the opening component. The radiator can be pushed open during the movement of the L-shaped plate to replace the thyristor. At the same time, with the cooperation of the protection plate and the elastic component, the radiator is elastically protected to avoid extrusion, deformation and damage of the radiator, thereby facilitating the replacement of the thyristor and improving the replacement efficiency of the thyristor.

[0020] 2. If the thyristor is accidentally dropped during the replacement process, the thyristor will fall onto the buffer plate in the receiving box. Then, with the cooperation of the buffer assembly, the thyristor can be buffered and protected, reducing the impact damage of the thyristor, facilitating the replacement and use of the thyristor, and increasing the service life of the thyristor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a structural schematic diagram of a thyristor replacement device in an embodiment of the present application;

[0022] Figure 2 It is a schematic diagram of a cross-sectional structure of a thyristor replacement device in an embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the planar structure of an elastic component of a thyristor replacement device in an embodiment of the present application;

[0024] Figure 4 It is a schematic diagram of the plan structure of a receiving box of a thyristor replacement device in an embodiment of the present application.

[0025] Explanation of the accompanying drawings: 1. Support plate; 2. Return frame; 3. L-shaped plate; 4. First slider; 5. First slide groove; 6. Opening assembly; 61. Push rod; 62. Second slider; 63. Second slide groove; 64. Screw rod; 65. Turning handle; 7. Protection plate; 8. Elastic assembly; 81. Cross plate; 82. Cross groove; 83. First spring; 9. Receiving box; 10. Buffer plate; 11. Sliding assembly; 111. Third slider; 112. Third slide groove; 12. Buffer assembly; 121. Damper; 122. Second spring. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-4 This application is described in further detail.

[0027] The present application embodiment discloses a thyristor replacement device. Figure 1-4A thyristor replacement device includes a support plate 1, a return frame 2 is fixed at the end of the support plate 1, L-shaped plates 3 are inserted and connected on both sides of the return frame 2, first sliders 4 are fixed to the vertical ends of the two L-shaped plates 3, a first slide groove 5 for the first slider 4 to slide is opened at the bottom end of the inner wall of the return frame 2, an opening component 6 for driving the L-shaped plate 3 to move is provided at the top of the support plate 1, and a protective plate 7 is provided at the end of the L-shaped plate 3 located outside the return frame 2, and the protective plate 7 is connected to the L-shaped plate 3 through an elastic component 8.

[0028] In this embodiment, when replacing the thyristor, the return frame 2 is placed between the heat sinks at both ends of the thyristor, and then the two L-shaped plates 3 are driven to move in the opposite direction under the movement of the opening component 6. The two L-shaped plates 3 can push the heat sink open during the movement to replace the thyristor. At the same time, when the L-shaped plate 3 pushes the heat sink open, the L-shaped plate 3 drives the protection plate 7 to contact the heat sink first, and then with the cooperation of the elastic component 8, the heat sink can be elastically protected to avoid extrusion, deformation and damage to the heat sink, thereby facilitating the replacement of the thyristor and improving the replacement efficiency of the thyristor.

[0029] In a further embodiment, Figure 2-3 As shown, the opening component 6 includes a push rod 61 hingedly arranged on one side of the two L-shaped plates 3, a second slider 62 hinged to the push rod 61 is slidably provided at the top of the support plate 1, a second slide groove 63 for the second slider 62 to slide is provided at the top of the support plate 1, a screw rod 64 threadedly connected to the second slider 62 is rotatably connected in the second slide groove 63, a turn handle 65 is fixed at one end of the screw rod 64 located outside the support plate 1, the elastic component 8 includes a transverse plate 81 fixedly arranged on one side of the protective plate 7 and interlaced with the L-shaped plate 3, a transverse groove 82 for the transverse plate 81 to be inserted is provided at the end of the L-shaped plate 3, and the transverse groove 82 is fixedly connected to the transverse plate 81 through a first spring 83.

[0030] When replacing the thyristor, move the return frame 2 and place it between the two heat sinks, then manually turn the handle 65, the handle 65 drives the screw rod 64 to rotate, the screw rod 64 drives the second slider 62 to move, the second slider 62 drives the push rod 61 to move, the push rod 61 pushes the L-shaped plate 3 to move, and at the same time, with the cooperation of the first slider 4 and the first slide groove 5, the L-shaped plate 3 moves stably, the radiator can be pushed open during the movement of the L-shaped plate 3, and the thyristor can be replaced, and when the L-shaped plate 3 pushes the radiator open, the protection plate 7 first contacts the radiator, and then, with the cooperation of the first spring 83 and the cross plate 81, provides elastic protection for the radiator to avoid extrusion, deformation and damage to the radiator, facilitates the replacement of the thyristor, and improves the replacement efficiency of the thyristor.

[0031] In a further preferred embodiment of the present invention, Figure 1As shown, a receiving box 9 is fixed to the top of the return frame 2, a buffer plate 10 is slidably provided in the receiving box 9, the buffer plate 10 is connected to the receiving box 9 through a sliding component 11, and a buffer component 12 for buffering the buffer plate 10 is provided in the receiving box 9.

[0032] If the thyristor accidentally falls during the replacement process, the thyristor falls directly onto the buffer plate 10 in the receiving box 9. Then, with the cooperation of the buffer assembly 12, the thyristor can be buffered and protected when it falls, reducing the damage caused by the thyristor falling and increasing the service life of the thyristor.

[0033] In a further embodiment, Figure 4 As shown, the sliding assembly 11 includes a third slider 111 fixedly arranged on both sides of the buffer plate 10, and third sliding grooves 112 for the third slider 111 to slide are opened on both sides of the inner wall of the receiving box 9. The buffer assembly 12 includes a damper 121 fixedly arranged between the receiving box 9 and the buffer plate 10, and the outer wall of the damper 121 is provided with a second spring 122.

[0034] If the thyristor falls accidentally, the buffer plate 10 is driven to move under the impact of the thyristor's fall. At the same time, with the cooperation of the third slider 111 and the third slide groove 112, the movement of the buffer plate 10 is kept stable. The buffer plate 10 squeezes the damper 121 and the second spring 122 during the movement. The thyristor can be buffered and protected with the cooperation of the damper 121 and the second spring 122, thereby reducing the damage of the thyristor caused by the fall impact and increasing the service life of the thyristor.

[0035] The implementation principle of a thyristor replacement device in the embodiment of the present application is as follows: when replacing the thyristor, the personnel can hold the support plate 1 as needed, place the return frame 2 between the heat sinks at both ends of the thyristor, and then manually rotate the handle 65, the handle 65 drives the screw rod 64 to rotate, the screw rod 64 drives the second slider 62 to move, the second slider 62 drives the push rod 61 to move, the push rod 61 pushes the L-shaped plate 3 to move, the L-shaped plate 3 can push the heat sink open during the movement, and the thyristor can be replaced, and when the L-shaped plate 3 pushes the heat sink open, the protection plate 7 first contacts with the heat sink, and then Later, with the cooperation of the first spring 83 and the cross plate 81, elastic protection is provided for the radiator to avoid extrusion, deformation and damage to the radiator, which facilitates the replacement of the thyristor and improves the replacement efficiency of the thyristor. If the thyristor is accidentally dropped during the replacement process, the buffer plate 10 is driven to move under the impact of the thyristor's drop. The buffer plate 10 squeezes the damper 121 and the second spring 122 during the movement. The thyristor can be buffered and protected with the cooperation of the damper 121 and the second spring 122, thereby reducing the damage of the thyristor caused by the drop impact and increasing the service life of the thyristor.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A thyristor replacement device, comprising a support plate (1), characterized in that: A return frame (2) is fixed at the end of the support plate (1), and L-shaped plates (3) are inserted and connected on both sides of the return frame (2). First sliding blocks (4) are fixed to the vertical ends of the two L-shaped plates (3). A first sliding groove (5) for sliding the first sliding block (4) is provided at the bottom end of the inner wall of the return frame (2). An opening component (6) for driving the L-shaped plate (3) to move is provided at the top end of the support plate (1). A protective plate (7) is provided at the end of the L-shaped plate (3) located outside the return frame (2), and the protective plate (7) is connected to the L-shaped plate (3) through an elastic component (8).

2. A thyristor replacement device according to claim 1, characterized in that: The opening assembly (6) comprises a push rod (61) hingedly arranged on one side of the two L-shaped plates (3), the top end of the support plate (1) is slidably provided with a second slider (62) hingedly connected to the push rod (61), the top end of the support plate (1) is provided with a second slide groove (63) for the second slider (62) to slide, the second slide groove (63) is rotatably connected with a screw rod (64) threadedly connected to the second slider (62), and a turning handle (65) is fixed to one end of the screw rod (64) located outside the support plate (1).

3. A thyristor replacement device according to claim 2, characterized in that: The elastic component (8) comprises a transverse plate (81) fixedly arranged on one side of the protection plate (7) and interlaced with the L-shaped plate (3); a transverse groove (82) for the transverse plate (81) to interlace is formed at the end of the L-shaped plate (3); and the transverse groove (82) is fixedly connected to the transverse plate (81) via a first spring (83).

4. A thyristor replacement device according to claim 3, characterized in that: A receiving box (9) is fixed at the top of the return frame (2), a buffer plate (10) is slidably arranged in the receiving box (9), the buffer plate (10) is connected to the receiving box (9) via a sliding component (11), and a buffer component (12) is arranged in the receiving box (9) for buffering the buffer plate (10).

5. A thyristor replacement device according to claim 4, characterized in that: The sliding assembly (11) comprises a third sliding block (111) fixedly arranged on both sides of the buffer plate (10), and both sides of the inner wall of the receiving box (9) are provided with a third sliding groove (112) for the third sliding block (111) to slide.

6. A thyristor replacement device according to claim 5, characterized in that: The buffer assembly (12) comprises a damper (121) fixedly arranged between the receiving box (9) and the buffer plate (10), and the outer wall of the damper (121) is sleeved with a second spring (122).

Images