Ultrahigh-voltage solid-state transformation equipment based on electric power transmission

Abstract

The invention relates to the technical field of power transmission, and discloses an ultrahigh-voltage solid-state transformation device based on power transmission, which comprises a bracket, a transformer cabinet and a support assembly, the bracket is erected on a telegraph pole, the transformer cabinet is mounted on the bracket, and the support assembly is arranged in the transformer cabinet. The supporting assembly comprises a first toothed bar fixedly connected to the bottom of an inner cavity of the transformer cabinet, the outer wall of the first toothed bar is rotationally connected with a cabinet plate, and the interior of the cabinet plate is rotationally connected with a first gear engaged with the first toothed bar. When the cabinet plate is turned over, the annular toothed plate drives the rotating shaft to rotate, so that the carrier plate drives the winding iron core to slide in the transformer cabinet on the second screw rod, after the cabinet plate is turned over and opened, the center of gravity in the transformer cabinet can be actively adjusted by adjusting the position of the winding iron core, and after a worker stands on the cabinet plate, the worker can conveniently adjust the position of the winding iron core. And the gravity of the transformer cabinet on the bracket is uniformly distributed, so that the stability of the transformer cabinet when a person stands on the cabinet plate is improved.

Description

Technical Field

[0001] This invention relates to the field of power transmission technology, specifically to an ultra-high voltage solid-state transformer for power transmission. Background Technology

[0002] In the field of power transmission, ultra-high voltage solid-state transformers are key nodes in power transmission networks, and their safety, reliability, and ease of maintenance have always been a focus of industry attention. Existing ultra-high voltage transformers installed on utility poles and other high-altitude locations face the following technical bottlenecks in actual operation and maintenance:

[0003] Traditional transformer cabinets are typically designed with enclosed cabinets, requiring the cabinet doors or side panels to be opened for maintenance. However, the interior space is small, making it difficult for workers to stand stably or store tools in a high-altitude environment.

[0004] The existing equipment lacks an effective protective structure. When maintenance personnel work at heights, they are at risk of falling because the edges of the cabinets are not protected and they are only secured by ropes. This safety hazard is even more prominent in complex outdoor environments.

[0005] When maintenance personnel stand on the extended structure of the transformer cabinet, the existing equipment lacks an active center of gravity adjustment mechanism. Changes in the load distribution of the cabinet can easily lead to an overall center of gravity shift, which in turn can cause equipment shaking or uneven stress on the installation structure. This not only affects the stability of maintenance operations but may also reduce the structural reliability of the equipment in the long term.

[0006] Therefore, an ultra-high voltage solid-state transformer for power transmission is proposed. Summary of the Invention

[0007] The purpose of this invention is to provide an ultra-high voltage solid-state transformer for power transmission to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an ultra-high voltage solid-state transformer for power transmission, comprising a bracket, a transformer cabinet, and a support assembly. The bracket is erected on a utility pole, the transformer cabinet is mounted on the bracket, and the support assembly is disposed inside the transformer cabinet. The support assembly includes a first toothed rod fixedly connected to the bottom of the inner cavity of the transformer cabinet. A cabinet plate is rotatably connected to the outer wall of the first toothed rod. A first gear meshing with the first toothed rod is rotatably connected inside the cabinet plate. A first lead screw is rotatably connected to the surface of the cabinet plate. A first transmission belt is drivingly connected between the first lead screw and the first gear. A base plate is symmetrically threaded to the outer wall of the first lead screw, and the base plates are all slidably connected to the surface of the cabinet plate.

[0009] Preferably, the transformer cabinet is equipped with a protective component, which includes a second toothed rod rotatably connected to the outer wall of the cabinet panel. The end of the second toothed rod near the first lead screw meshes with the first lead screw, and the end of the second toothed rod away from the first lead screw meshes with a second gear. The second gear is rotatably connected to the surface of the cabinet panel, and a support rod is fixedly connected to the side of the second gear away from the cabinet panel. The second gear and the support rod are linearly arrayed on the outer wall of the cabinet panel and are interconnected by a second transmission belt. A railing is rotatably connected between the support rods.

[0010] Preferably, the bracket is internally equipped with a center of gravity adjustment component, which includes an annular toothed plate fixedly connected to the outer wall of the cabinet panel. An annular sleeve is fixedly connected to the lower surface of the transformer cabinet. The annular toothed plate is slidably connected to the inside of the annular sleeve. A retaining plate is fixedly connected to the upper surface of the annular sleeve on the outer side of the transformer cabinet. A slide is slidably connected to the inside of the cabinet panel. A first spring is fixedly connected between the top of the slide and the inner wall of the cabinet panel. A rotating shaft is rotatably connected to the bottom of the inner cavity of the transformer cabinet. A third gear is symmetrically fixedly connected to the outer wall of the rotating shaft. The third gear meshes with the annular toothed plate. A bevel gear is fixedly connected to the middle of the outer wall of the rotating shaft. A second lead screw is rotatably connected to the bottom of the inner cavity of the transformer cabinet. The bevel gear meshes with the second lead screw. A carrier plate is threadedly connected to the outer wall of the second lead screw. The carrier plate is slidably connected to the bottom of the inner cavity of the transformer cabinet. A winding core is installed on the top of the carrier plate.

[0011] Preferably, the transformer cabinet is provided with a locking assembly, which includes a pin that is slidably connected to the inside of the cabinet panel. A second spring is fixedly connected between the pin and the inner wall of the cabinet panel. The pin has an angled opening on the side near the transformer cabinet. A button is slidably connected inside the transformer cabinet. A third spring is fixedly connected between the button and the inner wall of the transformer cabinet. The button and the side of the pin that are close to each other are abutted.

[0012] Preferably, the inner wall of the transformer cabinet is provided with sealing strips that are adapted to the cabinet plate. The outer walls of the first gear mesh with the first gear rack on both sides, and the outer wall of the first gear meshes with the first transmission belt in the middle. When the cabinet plate is flipped to a horizontal state, the rotation of the first lead screw causes the two bottom plates to slide away from each other.

[0013] Preferably, when the cabinet panel is in a vertical state, the support rod is in a coiled state inside the cabinet panel; when the cabinet panel is in a horizontal state, the support rod is perpendicular to the cabinet panel.

[0014] Preferably, the outer wall of the annular toothed plate is smooth on one side inside the transformer cabinet. When the cabinet is flipped, the annular toothed plate and the bevel gear will engage with a delayed manner. The bottom of the slide near the card plate has an inclined surface, and the surface of the card plate has a card hole that matches the slide.

[0015] Preferably, in the uncontracted state of the second and third springs, the pin is engaged between the transformer cabinet and the cabinet plate, and the bevel angle of the pin is adapted to the side wall thickness of the transformer cabinet.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. When the cabinet panel is flipped, the annular toothed plate drives the rotation of the shaft, causing the carrier plate to slide along the second lead screw inside the transformer cabinet, thereby allowing the transformer cabinet to actively adjust the center of gravity by adjusting the position of the winding core after the cabinet panel is flipped open. This ensures that the weight distribution of the transformer cabinet on the support is even when the staff stands on the cabinet panel, thus improving the stability of the transformer cabinet when the staff stands on the cabinet panel.

[0018] 2. By using the locking holes of the sliding bracket and the card plate after the cabinet panel rotates horizontally, the cabinet panel can be positioned after flipping, thus ensuring that the cabinet panel will not vibrate or flip backward due to outdoor wind force when it is in a horizontal state. This provides a stable maintenance environment for maintenance personnel on the cabinet panel. At the same time, the cabinet panel cannot actively flip backward, so that the staff will not be in danger of safety hazards due to the shaking of the cabinet panel, thus improving the safety of equipment use.

[0019] 3. By extending the base plate onto the cabinet panel, workers can stand on the cabinet panel during maintenance. The extension of the base plate onto the cabinet panel increases the standing area, facilitating workers' movement on the cabinet panel and storing tools, thus increasing the operating space for workers when maintaining the transformer cabinet. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is an exploded view of the overall structure of the present invention;

[0022] Figure 3 This is a cross-sectional view of the overall structure of the present invention;

[0023] Figure 4 This is an exploded view of a partial structure of the support component of the present invention;

[0024] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0025] Figure 6 This is an exploded view of the supporting component structure of the present invention;

[0026] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point B;

[0027] Figure 8 This is a partial schematic diagram of the structure of the center of gravity adjustment component of the present invention;

[0028] Figure 9 This is a schematic diagram of the internal structure of the transformer cabinet of the present invention;

[0029] Figure 10 This is a partial cross-sectional view of the structure of the center of gravity adjustment component of the present invention;

[0030] Figure 11 For the present invention Figure 10 Enlarged schematic diagram of the structure at point C;

[0031] Figure 12 This is a cross-sectional view of the locking assembly structure of the present invention.

[0032] In the picture:

[0033] 1. Support frame; 2. Transformer cabinet; 3. Winding core;

[0034] 4. Supporting components; 41. Cabinet panel; 42. First rack; 43. First gear; 44. First lead screw; 45. First transmission belt; 46. Base plate;

[0035] 5. Protective components; 51. Second rack; 52. Second gear; 53. Support rod; 54. Guardrail; 55. Second transmission belt;

[0036] 6. Center of gravity adjustment assembly; 61. Annular gear plate; 62. Annular sleeve; 63. Clamping plate; 64. Slide carriage; 65. First spring; 66. Rotating shaft; 67. Third gear; 68. Bevel gear; 69. Second lead screw; 610. Carrier plate;

[0037] 7. Locking assembly; 71. Bolt; 72. Second spring; 73. Button; 74. Third spring. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0039] Embodiments of the present invention

[0040] Please see Figures 1-6 , Figure 12An ultra-high voltage solid-state transformer for power transmission includes a support frame 1, a transformer cabinet 2, and a support assembly 4. The support frame 1 is mounted on a utility pole, the transformer cabinet 2 is mounted on the support frame 1, and the support assembly 4 is located inside the transformer cabinet 2. The support assembly 4 includes a first toothed rod 42 fixedly connected to the bottom of the inner cavity of the transformer cabinet 2. A cabinet plate 41 is rotatably connected to the outer wall of the first toothed rod 42. A first gear 43 that meshes with the first toothed rod 42 is rotatably connected inside the cabinet plate 41. A first lead screw 44 is rotatably connected to the surface of the cabinet plate 41. A first transmission belt 45 is drivingly connected between the first lead screw 44 and the first gear 43. A base plate 46 is symmetrically threaded to the outer wall of the first lead screw 44. The base plates 46 are all slidably connected to the surface of the cabinet plate 41.

[0041] The inner wall of the transformer cabinet 2 is provided with sealing strips that are compatible with the cabinet plate 41. The outer sides of the first gear 43 mesh with the first gear 42, and the middle of the outer wall of the first gear 43 meshes with the first transmission belt 45. When the cabinet plate 41 is flipped to a horizontal state, the rotation of the first lead screw 44 causes the two base plates 46 to slide away from each other.

[0042] The transformer cabinet 2 is equipped with a locking assembly 7. The locking assembly 7 includes a pin 71 that is slidably connected to the inside of the cabinet plate 41. A second spring 72 is fixedly connected between the pin 71 and the inner wall of the cabinet plate 41. The side of the pin 71 closest to the transformer cabinet 2 has an angle. A button 73 is slidably connected inside the transformer cabinet 2. A third spring 74 is fixedly connected between the button 73 and the inner wall of the transformer cabinet 2. The side of the button 73 closest to the pin 71 is in contact with the button.

[0043] When the second spring 72 and the third spring 74 are not retracted, the pin 71 is engaged between the transformer cabinet 2 and the cabinet plate 41, and the angle of the bevel of the pin 71 is adapted to the thickness of the side wall of the transformer cabinet 2.

[0044] In practical application, when maintenance personnel press button 73 inside transformer cabinet 2, the third spring 74 is compressed and elastically contracts, and button 73 slides into transformer cabinet 2. The sliding of button 73 pushes pin 71 into cabinet plate 41. At this time, the second spring 72 is compressed and elastically contracts. After pin 71 is pushed into cabinet plate 41, pin 71 will disengage from inside transformer cabinet 2, thereby releasing the limiting state of cabinet plate 41 and allowing cabinet plate 41 to be flipped inside transformer cabinet 2.

[0045] Subsequently, the staff flipped the cabinet panel 41 to open the interior of the transformer cabinet 2 to the outside. During the flipping process, the first gear 43 will mesh with the first rack 42 and rotate. When the first gear 43 rotates, it will drive the first lead screw 44 to rotate together through the first transmission belt 45. During the rotation, the first lead screw 44 will drive the base plate 46 to slide relatively far away on the surface of the cabinet panel 41. When the cabinet panel 41 rotates to a horizontal state on the surface of the transformer cabinet 2, the two base plates 46 slide on the cabinet panel 41 to the maximum distance.

[0046] By extending the base plate 46 onto the cabinet plate 41, workers can stand on the cabinet plate 41 during maintenance. The extension of the base plate 46 onto the cabinet plate 41 increases the standing area, facilitating workers' movement and tool storage on the cabinet plate 41, and increasing the operating space for workers when maintaining the transformer cabinet 2.

[0047] Please see Figure 6 and Figure 7 The transformer cabinet 2 is equipped with a protective component 5. The protective component 5 includes a second toothed rod 51 rotatably connected to the outer wall of the cabinet plate 41. The end of the second toothed rod 51 near the first lead screw 44 meshes with the first lead screw 44. The end of the second toothed rod 51 away from the first lead screw 44 meshes with a second gear 52. The second gear 52 is rotatably connected to the surface of the cabinet plate 41. A support rod 53 is fixedly connected to the side of the second gear 52 away from the cabinet plate 41. The second gear 52 and the support rod 53 are linearly arrayed on the outer wall of the cabinet plate 41 and are connected to each other by a second transmission belt 55. A railing 54 is rotatably connected between the support rods 53.

[0048] When the cabinet panel 41 is in a vertical state, the support rod 53 is in a rolled-up state inside the cabinet panel 41. When the cabinet panel 41 is in a horizontal state, the support rod 53 is perpendicular to the cabinet panel 41.

[0049] In practical application, when the cabinet panel 41 is flipped open, the rotation of the first lead screw 44 will mesh with and drive the second gear 51 to rotate together. When the second gear 51 rotates, it will mesh with and drive the second gear 52 to rotate together. When the second gear 52 rotates, it will drive multiple second gears 52 to rotate together through the transmission of the second transmission belt 55. The support rod 53 on the second gear 52 will rotate together with the second gear 52. Under the action of the rotation of the support rod 53, the railing 54 will move away from the cabinet panel 41. The support rod 53 and the railing 54 will block the cabinet panel 41, thereby providing a barrier and protection for the staff to perform maintenance on the transformer cabinet 2 on the cabinet panel 41, and improving the safety of the equipment during use.

[0050] Please see Figures 8 to 12The support frame 1 is equipped with a center of gravity adjustment component 6. The center of gravity adjustment component 6 includes an annular toothed plate 61 fixedly connected to the outer wall of the cabinet plate 41. An annular sleeve 62 is fixedly connected to the lower surface of the transformer cabinet 2. The annular toothed plate 61 is slidably connected to the inside of the annular sleeve 62. A retaining plate 63 is fixedly connected to the upper surface of the annular sleeve 62 on the outer side of the transformer cabinet 2. A slide 64 is slidably connected inside the cabinet plate 41. A first spring 65 is fixedly connected between the top of the slide 64 and the inner wall of the cabinet plate 41. A rotating shaft 66 is rotatably connected to the bottom of the inner cavity of cabinet 2. A third gear 67 is symmetrically fixedly connected to the outer wall of the rotating shaft 66. The third gear 67 meshes with the ring tooth plate 61. A bevel gear 68 is fixedly connected to the middle of the outer wall of the rotating shaft 66. A second lead screw 69 is rotatably connected to the bottom of the inner cavity of transformer cabinet 2. The bevel gear 68 meshes with the second lead screw 69. A carrier plate 610 is threadedly connected to the outer wall of the second lead screw 69. The carrier plate 610 is slidably connected to the bottom of the inner cavity of transformer cabinet 2. A winding core 3 is installed on the top of the carrier plate 610.

[0051] The outer wall of the annular toothed plate 61 is smooth on one side inside the transformer cabinet 2. When the cabinet plate 41 is flipped, the annular toothed plate 61 and the bevel gear 68 will be delayed in meshing. The bottom of the slide 64 near the card plate 63 is provided with an inclined surface. The surface of the card plate 63 is provided with a card hole that matches the slide 64.

[0052] In practical application, the flipping of the cabinet plate 41 will cause the annular toothed plate 61 to rotate inside the annular sleeve 62. When the annular toothed plate 61 rotates, its smooth surface will not mesh with the third gear 67 at first. When the cabinet plate 41 rotates to the point where its top is outside the transformer cabinet 2, the cabinet plate 41 will continue to flip, causing the annular toothed plate 61 to mesh and drive the third gear 67, the rotating shaft 66, and the bevel gear 68 to rotate together. After the bevel gear 68 rotates, it will drive the second lead screw 69, which meshes with it, to rotate together. When the second lead screw 69 rotates, it will cause the carrier plate 610 to drive the winding core 3 to slide away from the cabinet plate 41 in the inner cavity of the transformer cabinet 2.

[0053] When the cabinet panel 41 is flipped, the annular toothed plate 61 drives the rotating shaft 66 to rotate, causing the carrier plate 610 to slide the winding core 3 inside the transformer cabinet 2 via the second lead screw 69. This allows the transformer cabinet 2 to actively adjust its center of gravity by adjusting the position of the winding core 3 after the cabinet panel 41 is flipped open. This ensures that the weight distribution of the transformer cabinet 2 on the support 1 is uniform when a worker stands on the cabinet panel 41, thereby improving the stability of the transformer cabinet 2 when a worker stands on the cabinet panel 41.

[0054] When the cabinet panel 41 is flipped to a horizontal position, the clamping plate 63 will abut against the slide 64. Under the pressure of the clamping plate 63, the inclined surface of the slide 64 will slide into the interior of the cabinet panel 41. The first spring 65 will be compressed and elastically contracted. After the cabinet panel 41 is flipped to a horizontal position, the locking holes on the slide 64 and the clamping plate 63 will be aligned. The first spring 65 will no longer be compressed and will elastically extend, so that the slide 64 will be locked into the locking hole of the clamping plate 63. Thus, through the locking of the slide 64 and the clamping plate 63, the cabinet panel 41 is fixed to a horizontal position on the surface of the transformer cabinet 2.

[0055] After the cabinet panel 41 is rotated horizontally, the sliding bracket 64 and the locking plate 63 engage with each other, allowing the cabinet panel 41 to be positioned after being flipped. This ensures that the cabinet panel 41 will not vibrate or flip in reverse due to outdoor wind force when it is in a horizontal state, providing a stable maintenance environment for maintenance personnel on the cabinet panel 41. At the same time, the cabinet panel 41 cannot actively flip in reverse, so that the staff will not be at risk of safety hazards due to the shaking of the cabinet panel 41, thus improving the safety of equipment use.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-voltage solid-state transformer for power transmission, comprising a support frame (1), a transformer cabinet (2), and a support assembly (4), characterized in that: The bracket (1) is erected on a utility pole, the transformer cabinet (2) is installed on the bracket (1), and the support assembly (4) is located inside the transformer cabinet (2). The support assembly (4) includes a first toothed rod (42) fixedly connected to the bottom of the inner cavity of the transformer cabinet (2). The outer wall of the first toothed rod (42) is rotatably connected to a cabinet plate (41). The cabinet plate (41) is rotatably connected to a first gear (43) meshing with the first toothed rod (42). The surface of the cabinet plate (41) is rotatably connected to a first lead screw (44). A first transmission belt (45) is connected between the first lead screw (44) and the first gear (43). The outer wall of the first lead screw (44) is symmetrically threaded with a base plate (46). The base plates (46) are all slidably connected to the surface of the cabinet plate (41).

2. The ultra-high voltage solid-state transformer for power transmission according to claim 1, characterized in that: The transformer cabinet (2) is equipped with a protective component (5). The protective component (5) includes a second toothed rod (51) rotatably connected to the outer wall of the cabinet plate (41). The end of the second toothed rod (51) close to the first lead screw (44) meshes with the first lead screw (44). The end of the second toothed rod (51) away from the first lead screw (44) meshes with a second gear (52). The second gear (52) is rotatably connected to the surface of the cabinet plate (41). The side of the second gear (52) away from the cabinet plate (41) is fixedly connected to a support rod (53). The second gear (52) and the support rod (53) are linearly arrayed on the outer wall of the cabinet plate (41) and are connected to each other by a second transmission belt (55). The support rods (53) are rotatably connected to each other by railings (54).

3. The ultra-high voltage solid-state transformer for power transmission according to claim 1, characterized in that: The bracket (1) is equipped with a center of gravity adjustment component (6), which includes an annular toothed plate (61) fixedly connected to the outer wall of the cabinet (41). An annular sleeve (62) is fixedly connected to the lower surface of the transformer cabinet (2). The annular toothed plate (61) is slidably connected to the inside of the annular sleeve (62). A clamping plate (63) is fixedly connected to the upper surface of the annular sleeve (62) on the outer side of the transformer cabinet (2). A slide (64) is slidably connected to the inside of the cabinet (41). A first spring (65) is fixedly connected between the top of the slide (64) and the inner wall of the cabinet (41). 2) A rotating shaft (66) is rotatably connected to the bottom of the inner cavity. A third gear (67) is symmetrically fixedly connected to the outer wall of the rotating shaft (66). The third gear (67) meshes with the ring tooth plate (61). A bevel gear (68) is fixedly connected to the middle of the outer wall of the rotating shaft (66). A second lead screw (69) is rotatably connected to the bottom of the inner cavity of the transformer cabinet (2). The bevel gear (68) meshes with the second lead screw (69). A carrier plate (610) is threadedly connected to the outer wall of the second lead screw (69). The carrier plate (610) is slidably connected to the bottom of the inner cavity of the transformer cabinet (2). A winding core (3) is installed on the top of the carrier plate (610).

4. The ultra-high voltage solid-state transformer for power transmission according to claim 1, characterized in that: The transformer cabinet (2) is equipped with a locking assembly (7). The locking assembly (7) includes a pin (71) that is slidably connected to the inside of the cabinet panel (41). A second spring (72) is fixedly connected between the pin (71) and the inner wall of the cabinet panel (41). The pin (71) has an angled opening on the side near the transformer cabinet (2). A button (73) is slidably connected inside the transformer cabinet (2). A third spring (74) is fixedly connected between the button (73) and the inner wall of the transformer cabinet (2). The button (73) and the side of the pin (71) that are close to each other are attached.

5. The ultra-high voltage solid-state transformer for power transmission according to claim 1, characterized in that: The transformer cabinet (2) is provided with sealing strips around its inner wall that are compatible with the cabinet plate (41). The outer sides of the first gear (43) mesh with the first gear rod (42), and the middle of the outer wall of the first gear (43) meshes with the first transmission belt (45). When the cabinet plate (41) is flipped to a horizontal state, the rotation of the first lead screw (44) causes the two bottom plates (46) to slide away from each other.

6. The ultra-high voltage solid-state transformer for power transmission according to claim 2, characterized in that: When the cabinet panel (41) is in a vertical state, the support rod (53) is in a rolled-up state inside the cabinet panel (41). When the cabinet panel (41) is in a horizontal state, the support rod (53) is perpendicular to the cabinet panel (41).

7. The ultra-high voltage solid-state transformer for power transmission according to claim 3, characterized in that: The outer wall of the annular toothed plate (61) is smooth on one side inside the transformer cabinet (2). When the cabinet plate (41) is flipped, the annular toothed plate (61) and the bevel gear (68) will be delayed in meshing. The bottom of the slide (64) near the card plate (63) is provided with an inclined surface. The surface of the card plate (63) is provided with a card hole that matches the slide (64).

8. The ultra-high voltage solid-state transformer for power transmission according to claim 4, characterized in that: When the second spring (72) and the third spring (74) are not retracted, the pin (71) is engaged between the transformer cabinet (2) and the cabinet plate (41), and the angle of the bevel of the pin (71) is adapted to the thickness of the side wall of the transformer cabinet (2).

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