A high voltage distribution cabinet for offshore wind turbines

Abstract

A high-voltage distribution cabinet for an offshore wind turbine generator system relates to the technical field of new energy power control equipment, and comprises a base and a distribution cabinet body. The distribution cabinet body is rotatably arranged on the upper side of the base, a wind deflector is vertically and longitudinally arranged on the upper side of the distribution cabinet body, a vent is arranged on the front side of the distribution cabinet body, ventilation fan blades are arranged on the vent, a slide is vertically slidably arranged on the rear side of the distribution cabinet body, the inner end side of the slide extends to the interior of the distribution cabinet body, the outer end of the slide is located outside the distribution cabinet body and a long groove is arranged on it, a sliding shaft is slidably arranged in the long groove, a lift plate is fixedly arranged on the sliding shaft, fixed vertical plates are fixedly arranged on both sides of the distribution cabinet body through brackets, a slide groove is arranged on the inner side of the fixed vertical plate, a slide bar assembly is arranged at the end of the lift plate, the slide bar assembly is slidably arranged in the slide groove, and a dewatering and dehumidifying mechanism is arranged at the inner end of the slide. The present invention improves the ventilation effect of the power distribution cabinet, is beneficial to heat dissipation and corrosion prevention, and automatically performs regular dehumidification and dust removal inside the power distribution cabinet, effectively reducing moisture corrosion and safety hazards to the electrical cabinet. In addition, the present invention has high structural stability.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy power control equipment, in particular to a high-voltage power distribution cabinet for an offshore wind turbine. Background Art

[0002] As the global demand for clean energy continues to grow, offshore wind power has become a highly-regarded renewable energy generation method. However, offshore wind turbines operate in extreme marine environments, which places strict requirements on the reliability and stability of their components. Among them, the high-voltage distribution cabinet of offshore wind turbines, as one of the core components, undertakes the task of centralized distribution and conversion of electric energy. Its performance and stability are crucial to the operation of the entire wind power system.

[0003] However, there are some problems in the existing technology of high-voltage distribution cabinets for offshore wind turbines. In particular, in the harsh environment at sea, the distribution cabinet is in a high humidity and high salinity environment for a long time, resulting in a large temperature difference between the inside and outside of the electrical cabinet. When the humid high-salt water vapor contacts the relatively cold cabinet surface, the moisture condenses into water droplets. Normally, the cabinet surface is colder than the indoor temperature, which further promotes the condensation of moisture. If these condensed water cannot be removed in time, it will cause corrosion to the electrical cabinet, or even water accumulation, causing safety hazards.

[0004] In order to solve this problem, the prior art usually places the distribution cabinet in a relatively dry area of ​​the offshore wind power control platform, and uses physical isolation to reduce the impact of moisture and salt on the distribution cabinet. However, this method will cause the distribution cabinet itself to have poor heat dissipation, and an additional fan is required for cooling. At the same time, the offshore high-voltage distribution cabinet in the prior art is equipped with fewer vents to prevent seawater from entering the interior of the distribution cabinet, which limits the ventilation effect. In addition, the upper front side of the distribution cabinet is usually used to set the control panel, so ventilation holes cannot be set, and vents are not set on the top to prevent rain, which will lead to poor heat dissipation in the upper part. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a high-voltage distribution cabinet for an offshore wind turbine set, which solves the problems of corrosion and safety hazards of the distribution cabinet caused by the high humidity and high salinity environment in the prior art, as well as the problem of poor ventilation and heat dissipation.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A high-voltage distribution cabinet for an offshore wind turbine, characterized in that it comprises a base and a distribution cabinet body, the distribution cabinet body being rotatably arranged on the upper side of the base, a wind deflector being vertically and longitudinally arranged on the upper side of the distribution cabinet body, a vent being arranged on the front side of the distribution cabinet body, a ventilation fan blade being arranged on the vent, a slide being vertically slidably arranged on the rear side of the distribution cabinet body, the inner end side of the slide extending into the interior of the distribution cabinet body, the outer end of the slide being located outside the distribution cabinet body and being provided with a long groove, a sliding shaft being slidably arranged in the long groove, a lift plate being fixedly arranged on the slide shaft, fixed vertical plates being fixedly arranged on both sides of the distribution cabinet body through brackets, a slide groove being arranged on the inner side of the fixed vertical plates, a slide bar assembly being arranged at the end of the lift plate, the slide bar assembly being slidably arranged in the slide groove, and a dewatering and dehumidifying mechanism being arranged at the inner end of the slide.

[0008] A preferred technical solution is that the power distribution cabinet body is rotatably set on the base through a rotating seat, circular grooves are set at corresponding positions on the lower side of the rotating seat and the upper side of the base, and balls are evenly arranged inside the grooves, a convex plate is set at the middle position of the lower side of the rotating seat, and a circular groove is set at the middle position of the upper side of the base, the convex plate is rotatably set inside the circular groove, a pressure plate is fixedly set on the upper side of the base and above the convex plate, and fixing holes are evenly arranged around the base.

[0009] A preferred technical solution is that the wind direction plate is shuttle-shaped and the width of the front end is greater than the width of the rear end, the front end of the wind direction plate is provided with an air collecting port, the inner side of the air collecting port is provided with an air collecting channel, the inner end of the air collecting channel extends from the top of the distribution cabinet body to the interior of the distribution cabinet body, the outer end bottom side of the air collecting channel is inclined upward from the outside to the inside, and the outer end top side of the air collecting channel is inclined downward from the outside to the inside.

[0010] According to a preferred technical solution, the dehumidification mechanism comprises a frame fixedly arranged on the inner end side of the slide, the frame is arranged close to the inner wall of the power distribution cabinet body and is in a quadrilateral shape, and a water-absorbing sponge roller is rotatably arranged on the frame.

[0011] According to a preferred technical solution, several layers of mounting plates are fixedly arranged horizontally inside the power distribution cabinet body, a group of dehumidification mechanisms corresponds to the top of each layer of mounting plates, and mounting holes are evenly arranged on the mounting plates.

[0012] According to a preferred technical solution, the lift plates are symmetrically fixed at both ends of the sliding shaft, the lift plates are wing-shaped, and the sliding rod assembly is arranged on the outer end side of the lift plates.

[0013] A preferred technical solution is that the slide rod assembly includes a fixed sleeve fixedly arranged on the outer end side of the lift plate, a slide rod is slidably arranged on the inner side of the fixed sleeve, a compression spring is arranged inside the fixed sleeve, one end of the compression spring presses against the inner bottom of the fixed sleeve, and the other end of the compression spring presses against the inner end side of the slide rod, a rolling groove is arranged on the outer end side of the slide rod, and a rolling ball is rotatably embedded in the rolling groove.

[0014] According to a preferred technical solution, the movement trajectory of the slide bar assembly in the slide groove is a quadrilateral, and the slide groove includes a transverse slide groove and a vertical slide groove. Along the movement trajectory, a step is provided at the junction of the end of the vertical slide groove and the front end of the transverse slide groove, and the depth of the front end of the transverse slide groove is greater than the depth of the end of the vertical slide groove, and the depth of the front end of the transverse slide groove is less than the depth of the end of the transverse slide groove.

[0015] A preferred technical solution is that a vertical groove is provided on the fixed vertical plate on one side of the slide groove, a sliding block is slidably provided in the vertical groove, a sliding pin is fixedly provided on the sliding block, an adjustment long groove is provided on the outer end side of the lift plate and close to the middle of the lift plate, and the sliding pin is slidably provided inside the adjustment long groove.

[0016] According to a preferred technical solution, the length of the vertical slide groove is less than or equal to the spacing between the mounting plates.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention improves the ventilation effect of the distribution cabinet by arranging wind deflectors, vents and ventilation blades, and utilizing wind collecting channels, which is beneficial to heat dissipation and corrosion prevention. A dehumidification mechanism is introduced, which is driven by a lift plate to automatically and regularly dehumidify, dehumidify and remove dust from the inside of the distribution cabinet, effectively reducing moisture corrosion to the electrical cabinet and potential safety hazards. In addition, the present invention has high structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a partial cross-sectional structural schematic diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the matching structure of the slide, the power distribution cabinet body and the mounting plate of the present invention;

[0022] Figure 4 It is a schematic diagram of the rotational cooperation structure between the power distribution cabinet body and the base of the present invention;

[0023] Figure 5 It is a schematic diagram of the cooperation structure of the slide and the dehumidification mechanism of the present invention;

[0024] Figure 6 It is a schematic diagram of the assembly structure of the sliding shaft and the lifting plate of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the slide bar assembly of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the chute and the vertical slot of the present invention;

[0027] Fig. 9 It is a schematic diagram of the structure of the lift plate of the present invention when it is raised;

[0028] Fig.10 It is a structural schematic diagram of the lift plate of the present invention when it is descending;

[0029] In the figure: 1, base; 2, distribution cabinet body; 3, wind direction plate; 4, vent; 5, ventilation blade; 6, slide; 7, long slot; 8, slide shaft; 9, lift plate; 10, bracket; 11, fixed vertical plate; 12, slide slot; 13, slide bar assembly; 14, dehumidification and dewatering mechanism; 15, rotating seat; 16, groove; 17, ball bearing; 18, convex plate; 19, round groove; 20, pressure plate; 21, fixing hole; 22, mounting plate; 23. Mounting hole; 24. Vertical slot; 25. Sliding block; 26. Sliding pin; 27. Adjusting slot; 28. Ventilation slot; 29. ​​Filter; 301. Air collecting port; 302. Air collecting channel; 1201. Horizontal slide slot; 1202. Vertical slide slot; 1203. Step; 1301. Fixed sleeve; 1302. Sliding rod; 1303. Compression spring; 1304. Rolling ball; 1401. Frame; 1402. Absorbent sponge roller. DETAILED DESCRIPTION

[0030] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] like Figure 1 , 2As shown in Figure 3, a high-voltage distribution cabinet for an offshore wind turbine comprises a base 1 and a distribution cabinet body 2. The distribution cabinet body 2 is rotatably arranged on the upper side of the base 1. A wind deflector 3 is vertically and longitudinally arranged on the upper side of the distribution cabinet body 2. A vent 4 is arranged on the front side of the distribution cabinet body 2. Ventilation fan blades 5 are arranged on the vent 4. A slide 6 is vertically slidably arranged on the rear side of the distribution cabinet body 2. The inner end side of the slide 6 extends to the interior of the distribution cabinet body 2. The outer end of the slide 6 is located outside the distribution cabinet body 2 and a long groove 7 is arranged on it. A sliding shaft 8 is slidably arranged in the long groove 7. A lift plate 9 is fixedly arranged on the slide shaft 8. Fixed vertical plates 11 are fixedly arranged on both sides of the distribution cabinet body 2 through brackets 10. A slide groove 12 is arranged on the inner side of the fixed vertical plate 11. A slide rod assembly 13 is arranged at the end of the lift plate 9. The slide rod assembly 13 is arranged in the slide groove 12 to slide up and down. A dewatering and dehumidifying mechanism 14 is arranged at the inner end of the slide 6. The wind deflector 3 is shuttle-shaped and the front width is greater than the rear width. The front end of the wind deflector 3 is provided with an air collecting port 301, and the inner side of the air collecting port 301 is provided with an air collecting channel 302. The inner end of the air collecting channel 302 extends from the top of the power distribution cabinet body 2 to the inside of the power distribution cabinet body 2. The outer end bottom side of the air collecting channel 302 is inclined upward from the outside to the inside, and the outer end top side of the air collecting channel 302 is inclined downward from the outside to the inside. Several layers of mounting plates 22 are horizontally fixedly arranged inside the power distribution cabinet body 2. A group of dehumidification and dehumidification mechanisms 14 are respectively corresponding to the top of each layer of mounting plates 22, and mounting holes 23 are evenly arranged on the mounting plates 22. A ventilation slot 28 is arranged on the rear side of the power distribution cabinet body 2, and a filter screen 29 is arranged on the front side of the vent 4.

[0033] like Figure 1 and 4 As shown, the distribution cabinet body 2 is rotatably set on the base 1 through a rotating seat 15, and circular grooves 16 are set at corresponding positions on the lower side of the rotating seat 15 and the upper side of the base 1, and balls 17 are evenly arranged inside the grooves 16. A convex plate 18 is set at the middle position of the lower side of the rotating seat 15, and a circular groove 19 is set at the middle position of the upper side of the base 1. The convex plate 18 is rotatably set inside the circular groove 19, and a pressure plate 20 is fixedly set on the upper side of the base 1 and above the convex plate 18, and fixing holes 21 are evenly arranged around the base 1.

[0034] like Figure 2 and 5 As shown, the dehydration and dehumidification mechanism 14 includes a frame 1401 fixedly arranged on the inner end side of the slide 6. The frame 1401 is arranged close to the inner wall of the distribution cabinet body 2 and is in a quadrilateral shape. A water-absorbing sponge roller 1402 is rotatably arranged on the frame 1401.

[0035] like Figure 6 and 7As shown, the lift plate 9 is symmetrically fixed at both ends of the slide shaft 8, the lift plate 9 is wing-shaped, and the slide bar assembly 13 is arranged on the outer end side of the lift plate 9. The slide bar assembly 13 includes a fixed sleeve 1301 fixedly arranged on the outer end side of the lift plate 9, a slide bar 1302 is slidably arranged on the inner side of the fixed sleeve 1301, a compression spring 1303 is arranged inside the fixed sleeve 1301, one end of the compression spring 1303 presses against the inner bottom of the fixed sleeve 1301, and the other end of the compression spring 1303 presses against the inner end side of the slide bar 1302, a rolling groove is arranged on the outer end side of the slide bar 1302, and a rolling ball 1304 is rotatably arranged in the rolling groove.

[0036] like Figure 8 As shown, the motion track of the slide bar assembly 13 in the slide slot 12 is a quadrilateral, and the slide slot 12 includes a horizontal slide slot 1201 and a vertical slide slot 1202. Along the motion track, a step 1203 is provided at the junction of the end of the vertical slide slot 1202 and the front end of the horizontal slide slot 1201, and the depth of the front end of the horizontal slide slot 1201 is greater than the depth of the end of the vertical slide slot 1202, and the depth of the front end of the horizontal slide slot 1201 is less than the depth of the end of the horizontal slide slot 1201. The length of the vertical slide slot 1202 is less than or equal to the spacing between the mounting plates 22.

[0037] like Fig. 9 and 10 As shown, a vertical groove 24 is provided on the fixed vertical plate 11 on one side of the slide groove 12, a slider 25 is slidably provided in the vertical groove 24, a slide pin 26 is fixedly provided on the slider 25, an adjustment long groove 27 is provided on the outer end side of the lift plate 9 and close to the middle of the lift plate 9, and the slide pin 26 is slidably provided inside the adjustment long groove 27.

[0038] like Figure 1-10 As shown, the working principle of the present invention is as follows:

[0039] The wind deflector 3 of the present invention is shuttle-shaped and the width of the front end is greater than the width of the rear end, which conforms to aerodynamics. At the same time, this determines that the center of the wind deflector 3 is located at the front end, and the center of gravity is just located in the middle of the top of the distribution cabinet body 2, so that the force on the bottom is uniform when the distribution cabinet body 2 rotates, and it is not easy to damage the rotating pair at the bottom. In addition, the wider front end can also better set the wind collecting port 301 and the wind collecting channel 302. In addition, the structure of the wind collecting channel 302 is not only conducive to wind collection, but also blows the collected wind from the top of the distribution cabinet body 2 into the interior of the distribution cabinet body 2, thereby playing the role of ventilation and heat dissipation from the top, reducing the problem of poor heat dissipation on the top of the distribution cabinet, and the wind collecting channel 302 The structure does not easily bring rainwater into the interior of the distribution cabinet body 2. The rainwater will flow out along the bottom of the wind collecting channel 302 that is inclined upward. Since the present application provides a lifting plate 9 and a rotating structure at the bottom of the distribution cabinet body 2, this may cause the distribution cabinet body 2 to shake greatly. Especially when the wind force is relatively strong, the lifting plate 9 will give the distribution cabinet body 2 an upward force, and when the wind direction is unstable, higher requirements will be placed on the rotating structure of the distribution cabinet body 2. Moreover, the structure of the wind collecting channel 302 of the present application will give the wind collecting channel 302 a downward force when collecting wind. This part of the force is beneficial to increase the stability of the distribution cabinet body 2 during strong winds. The wind deflector 3 of the present invention has a longer tail. Under the action of wind force, the front end of the wind deflector 3 can always be directed toward the windward direction through the rotating structure at the bottom of the distribution cabinet body 2, which is not only beneficial for collecting wind but also can control the front of the distribution cabinet body 2 to face the wind direction. The front side of the distribution cabinet body 2 is controlled to be provided with fan blades 5, so as to always play a role in increasing air convection. In addition, the air inlet 4 of the invention is not only provided with a filter 29 and a fan blade 5, but also a water leakage hole can be provided at the bottom of the air inlet 4 to prevent rainwater from being brought into the interior of the distribution cabinet body 2.

[0040] The lift plate 9 provided in the present invention is also always facing the wind under the action of the wind deflector 3. The shape of the lift plate 9 is similar to that of an airfoil and its function is similar to that of an airfoil. Fig. 9 As shown, the tail of the lift plate 9 is lifted. According to the lift principle of the wing, the wind will give the lift plate 9 an upward force. The lift plate 9 of the present invention can be made of a very light foam board. The slide 6 and the slide shaft 8 are made of light materials. When the wind reaches a certain intensity, the lift plate 9 will be lifted by the wind, thereby driving the slide 6 to move upward, and then driving the water-absorbing sponge roller 1402 of the dehumidification mechanism 14 to move upward. The water-absorbing sponge roller 1402 can wipe the inside of the distribution cabinet body 2 to remove water droplets or dust on the inner wall, thereby reducing safety risks and corrosion. Fig. 9As shown in the figure, when the lift plate 9 is raised to the highest position, due to the structural characteristics of the slide groove 12 and the slide rod assembly 13, specifically, when the balls 1304 of the slide rod assemblies 13 at both ends of the lift plate 9 enter the upper horizontal slide groove 1201, and under the action of the elastic force of the compression spring 1303, in conjunction with the structure of the upper horizontal slide groove 1201, the balls 1304 will be squeezed into another vertical slide groove 1202, and due to the action of the slider 25, the slide pin 26 and the adjustment slot 27, the lift plate 9 enters the position as shown in the figure. Fig.10 , at which time the tail height of the lift plate 9 is reduced, and the lift force of the wind on the lift plate 9 becomes smaller or disappears. Under the action of the self-weight of the lift plate 9 and the connecting structure, it will descend along the vertical slide groove 1202. When the lift plate 9 drops to the lowest position, the compression spring 1303 of the slide bar assembly 13 will squeeze the ball 1304 into the starting vertical slide groove 1202, thereby causing the tail of the lift plate 9 to rise again. The lift plate 9 forms a lift again under the action of the wind, and the lift plate 9 drives the dehydration and dehumidification mechanism 14 to work again, forming a cycle. The lift plate 9 of the present invention can automatically drive the dehydration and dehumidification mechanism 14 to dehydrate, dehumidify and remove dust from the inside of the distribution cabinet body 2 under the action of wind. The present invention needs to regularly replace the water-absorbing sponge roller 1402 to maintain the water absorption and cleanliness of the water-absorbing sponge roller 1402.

[0041] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A high voltage distribution cabinet for an offshore wind turbine, characterized in that: The invention comprises a base (1) and a power distribution cabinet body (2), wherein the power distribution cabinet body (2) is rotatably arranged on the upper side of the base (1), a wind deflector (3) is vertically and longitudinally arranged on the upper side of the power distribution cabinet body (2), a ventilating opening (4) is arranged on the front side of the power distribution cabinet body (2), a ventilating fan blade (5) is arranged on the ventilating opening (4), a slide frame (6) is vertically and slidably arranged on the rear side of the power distribution cabinet body (2), the inner end side of the slide frame (6) extends into the interior of the power distribution cabinet body (2), and the outer end of the slide frame (6) is located outside the power distribution cabinet body (2) A long groove (7) is arranged on the top, a sliding shaft (8) is slidably arranged in the long groove (7), a lifting plate (9) is fixedly arranged on the sliding shaft (8), fixed vertical plates (11) are fixedly arranged on both sides of the power distribution cabinet body (2) through brackets (10), a sliding groove (12) is arranged on the inner side of the fixed vertical plate (11), a sliding rod assembly (13) is arranged at the end of the lifting plate (9), and the sliding rod assembly (13) is slidably arranged in the sliding groove (12) up and down, and a dehumidification mechanism (14) is arranged at the inner end of the slide frame (6); The wind direction plate (3) is shuttle-shaped and has a front width greater than a rear width. The front end of the wind direction plate (3) is provided with an air collecting port (301). The inner side of the air collecting port (301) is provided with an air collecting channel (302). The inner end of the air collecting channel (302) extends from the top of the power distribution cabinet body (2) to the inside of the power distribution cabinet body (2). The bottom side of the outer end of the air collecting channel (302) is arranged to be inclined upward from the outside to the inside, and the top side of the outer end of the air collecting channel (302) is arranged to be inclined downward from the outside to the inside. The dehumidification mechanism (14) comprises a frame (1401) fixedly arranged on the inner end side of the slide (6); the frame (1401) is arranged close to the inner wall of the power distribution cabinet body (2) and is in a quadrilateral shape; a water-absorbing sponge roller (1402) is rotatably arranged on the frame (1401); The slide bar assembly (13) comprises a fixed sleeve (1301) fixedly arranged on the outer end side of the lift plate (9), a slide bar (1302) being slidably arranged on the inner side of the fixed sleeve (1301), a compression spring (1303) being arranged inside the fixed sleeve (1301), one end of the compression spring (1303) being pressed against the inner bottom of the fixed sleeve (1301), and the other end of the compression spring (1303) being pressed against the inner end side of the slide bar (1302), a rolling groove being arranged on the outer end side of the slide bar (1302), and a rolling ball (1304) being rotatably embedded in the rolling groove.

2. A high-voltage power distribution cabinet for an offshore wind turbine according to claim 1, characterized in that: The power distribution cabinet body (2) is rotatably arranged on the base (1) via a rotating seat (15); circular grooves (16) are arranged at positions corresponding to each other on the lower side of the rotating seat (15) and the upper side of the base (1); balls (17) are evenly arranged inside the grooves (16); a convex plate (18) is arranged at the middle position of the lower side of the rotating seat (15); a circular groove (19) is arranged at the middle position of the upper side of the base (1); the convex plate (18) is rotatably arranged inside the circular groove (19); a pressure plate (20) is fixedly arranged on the upper side of the base (1) and above the convex plate (18); and fixing holes (21) are evenly arranged around the base (1).

3. The high-voltage power distribution cabinet for an offshore wind turbine according to claim 1, characterized in that: A plurality of layers of mounting plates (22) are horizontally fixedly arranged inside the power distribution cabinet body (2), and a group of dehumidification mechanisms (14) corresponds to the top of each layer of mounting plates (22). Mounting holes (23) are evenly arranged on the mounting plates (22).

4. The high-voltage power distribution cabinet for an offshore wind turbine according to claim 1, characterized in that: The lift plate (9) is symmetrically fixedly arranged at the two ends of the sliding shaft (8), the lift plate (9) is wing-shaped, and the sliding rod assembly (13) is arranged on the outer end side of the lift plate (9).

5. The high-voltage power distribution cabinet for an offshore wind turbine according to claim 1, characterized in that: The movement trajectory of the slide bar assembly (13) in the slide groove (12) is a quadrilateral, and the slide groove (12) includes a transverse slide groove (1201) and a vertical slide groove (1202). Along the movement trajectory, a step (1203) is provided at the junction of the end of the vertical slide groove (1202) and the front end of the transverse slide groove (1201), and the depth of the front end of the transverse slide groove (1201) is greater than the depth of the end of the vertical slide groove (1202), and the depth of the front end of the transverse slide groove (1201) is less than the depth of the end of the transverse slide groove (1201).

6. A high-voltage power distribution cabinet for an offshore wind turbine according to claim 5, characterized in that: A vertical groove (24) is arranged on one side of the slide groove (12) on the fixed vertical plate (11), a sliding block (25) is slidably arranged in the vertical groove (24), a sliding pin (26) is fixedly arranged in the sliding block (25), an adjustment long groove (27) is arranged on the outer end side of the lift plate (9) and close to the middle part of the lift plate (9), and the sliding pin (26) is slidably arranged inside the adjustment long groove (27).

7. A high-voltage power distribution cabinet for an offshore wind turbine according to claim 5, characterized in that: The length of the vertical slide groove (1202) is less than or equal to the distance between the mounting plates (22).

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