A wind turbine junction box fixing mechanism

Abstract

The invention discloses a wind turbine generator junction box fixing mechanism, which is applied in the technical field of wind turbine generator junction boxes. The invention provides a fixing seat and a connecting piece to stably connect the device and the tower. The anti-slip frame is used to stabilize the bolt position of the connecting piece and the tower. After the connecting piece and the tower are fastened and installed, the sliding sleeve pressed by the hard spring will slide backward along the sliding pin, and the pull rod connected thereto rotates to push the limit frame and the anti-slip sleeve connected thereto to clamp the end of the bolt and limit it. An outer box is provided on the outside of the junction box body to protect it, and the cable is protected by the sheath connected to the clamping frame. The front structure is installed by providing a side frame and a sleeve frame. The assembly plate connected to the box body and the opening frame are connected by an air bag to provide buffering when rotation occurs.

Description

Technical Field

[0001] The invention belongs to the technical field of wind turbine generator junction boxes, and in particular relates to a fixing mechanism for a wind turbine generator junction box. Background Art

[0002] The wind turbine junction box is an important component in the wind power generation system. It mainly connects and protects the circuit. The junction box needs to meet relevant safety standards and specifications, such as having sufficient electrical clearance and creepage distance to prevent electrical accidents.

[0003] The existing wind turbine junction box fixing mechanism is mostly installed directly on the tower surface through bolts and fixing bases when installing the junction box. The tower often generates vibrations transmitted by the equipment when the wind turbine is in operation, and the connection between the fixing base and the tower is also affected by the vibration. Bolts may fall off in this environment for a long time. At the same time, due to the integrity and size of the cables, the sealing between the junction box and the cables needs to be improved.

[0004] Based on the above-mentioned problems, we found that it is difficult for the existing wind turbine junction box to avoid the above problems at the same time. Therefore, we proposed a wind turbine junction box fixing mechanism that can stably connect the tower and the fixing seat as well as the fixing seat and the junction box, while having a good shock-absorbing and buffering effect and strong sealing. Summary of the invention

[0005] The purpose of the present invention is to provide an existing wind turbine junction box fixing mechanism, which has the advantages of being able to stably connect the tower and the fixing seat as well as the fixing seat and the junction box, while having a good shock-absorbing and buffering effect and having strong sealing performance.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a wind turbine generator junction box fixing mechanism, comprising a fixing seat, a connecting piece and a box body, wherein the connecting piece is fixedly connected to the front side of the fixing seat, the box body is installed on the front side of the connecting piece, a box cover is installed on the front side of the box body, an anti-drop frame is provided on the front side of the box cover, a connecting piece is fixedly connected to the outer side of the fixing seat, and the inner side of the connecting piece is connected to the tower wall by bolts;

[0007] The connecting member comprises a side frame, a sleeve frame is fixedly connected to the outer side of the side frame, a connecting piece is fixedly connected to the front side of the sleeve frame, an air bag is arranged on the outer side of the connecting piece, an opening frame is arranged on the outer side of the air bag, an assembly plate is bolted to the outer side of the opening frame, and the front side of the assembly plate is fixedly connected to the box body by bolts;

[0008] The box body comprises an outer box, a junction box body is installed on the inner side of the outer box, a card frame is fixedly connected to both sides of the outer box, a card slot is provided at the bottom of the inner side of the card frame, a card frame is provided on the outer side of the outer box, and a sheath is installed on the outer side of the card frame;

[0009] The anti-slip frame includes a frame seat, a sliding pin is fixedly connected to the front side of the frame seat, a hard spring is provided on the outer side of the sliding pin, a sliding sleeve is slidably connected to the outer side of the sliding pin, the front side of the sliding sleeve is fixedly connected to the hard spring, a pull rod is rotatably connected to the outer side of the sliding sleeve, the pull rod is rotatably connected to the limiting frame on the outer side, the limiting frame is rotatably connected to the anti-slip sleeve on the side away from the pull rod, and the outer side of the box cover is rotatably connected to the limiting frame.

[0010] By adopting the above technical scheme, a fixing seat is provided to cooperate with a connecting piece to firmly connect the device and the tower, a connecting piece is used to connect the box body and the fixing seat, a box cover is provided to protect the front side of the box body, and an anti-detachment frame is provided to stabilize the bolt position of the connecting piece and the tower. After the connecting piece and the tower are fastened and installed, the box cover can be installed, and then the sliding sleeve pressed by the hard spring will slide backward along the sliding pin, and the pull rod connected to it rotates to push the limit frame and the anti-detachment sleeve connected to it to clamp the end of the bolt and limit it. Due to the pressure of the hard spring, the bolts that may loosen when the structure vibrates are difficult to limit. The outer box is arranged on the outside of the junction box body to protect it, and the junction box body will not be directly damaged when it is exposed to heavy rain and snow on the outside. At the same time, the cables are protected by the sheath connected to the bracket to avoid large-angle bending or external impact as well as damage caused by rain, snow, hail and wind and sand. The front structure is installed by arranging a side frame in conjunction with the sleeve frame, and the assembly plate and the opening frame connected to the box body are connected by an air bag. When the tower body vibrates, the assembly plate and the opening frame will convert the vibration into smaller shaking through the buffer of the air bag, thereby avoiding loose connection or damage to components due to vibration.

[0011] The present invention is further configured as follows: the card frame includes a frame body, a cavity is opened on the inner side of the frame body, a slider and a synchronization block are slidably connected to the bottom of the frame body, the top of the slider is fixedly connected to the synchronization frame, the bottom of the synchronization frame is fixedly connected to the synchronization block, and the tops of the slider and the synchronization block are fixedly connected to a clamping spring.

[0012] By adopting the above technical solution, by setting a frame to cooperate with a slider and a synchronization block, the card frame can be directly inserted into the interior of the card frame when connecting the card frame and the junction box body. The slider will move along the frame when pressing the card frame. At this time, the card spring is pressed. After moving to the inside of the card slot, the card spring rebounds and is inserted into the card slot to complete the installation of the structure. When disassembling, press the synchronization block, and the slider connected to it through the synchronization frame will also move. At this time, the card frame can be removed from the inner side of the card frame.

[0013] The present invention is further configured as follows: the sheath comprises a ring frame, a hollow frame and a rotating pin; the left side of the left ring frame is fixedly connected to the right side of the frame; and the ring frame and the hollow frame are rotatably connected via the rotating pin.

[0014] By adopting the above technical solution, a ring frame is provided to cooperate with a hollow frame and a rotating pin, and external cables are passed through the ring frame and the hollow frame to protect them. At the same time, only a small angle of bending is allowed under the limitation of the rotating pin.

[0015] The present invention is further configured as follows: a rubber seal is clamped on the inner side of the outer box, the rubber seal is sleeved on the outer side of the external cable, and an elastic ring is provided on the inner side of the rubber seal.

[0016] By adopting the above technical solution, the sealing between the external cable and the outer box can be improved by arranging a rubber seal, and the elastic ring is arranged on the inner side of the rubber seal to improve the elasticity and sealing performance.

[0017] The present invention is further configured as follows: both sides of the rubber seal are configured as trumpet-shaped openings, the inner side of the rubber seal is configured as a hollow ridge, and the number of the elastic rings is four.

[0018] By adopting the above technical solution, the trumpet-shaped opening is provided to facilitate the guidance of the cable installation, so as to facilitate the insertion of the cable. When the cable is inserted, it is stretched for easy use. The hollow ridge provided can facilitate the position fit of the connection between the outer box and the rubber seal, thereby improving the sealing of the structure and avoiding water leakage of the structure.

[0019] The present invention is further configured as follows: a hard rubber pad is fixedly connected to the inner side of the anti-drop sleeve, and a polygonal groove is provided on the inner side of the hard rubber pad.

[0020] By adopting the above technical solution, by providing a hard rubber pad, the contact tightness with the bolt end can be further improved, and the polygonal groove can facilitate the fitting and limiting of the edges and corners of the bolt end.

[0021] The present invention is further configured as follows: a vertical rod is fixedly connected to the inner side of the opening frame, and a through hole for use with the vertical rod is opened on the inner side of the connecting piece.

[0022] By adopting the above technical solution, by providing vertical rods and matching through holes, the displacement between the opening frame and the connecting piece can be limited.

[0023] The present invention is further configured as follows: a stress-bearing sheet is fixedly connected to the outer side of the vertical rod, a buffer spring is fixedly connected to the top of the top stress-bearing sheet and the bottom of the bottom stress-bearing sheet, and the buffer spring is fixedly connected to the opening frame on one side away from the stress-bearing sheet.

[0024] By adopting the above technical solution, by providing a force-bearing sheet in conjunction with a buffer spring, it is possible to assist in resetting the airbag. Even if a single airbag becomes loose, it can still have a buffering and resetting effect on the structure.

[0025] The present invention is further configured as follows: side pieces are rotatably connected to both sides of the junction box body, and cable glands are installed on the outer sides of the side pieces.

[0026] By adopting the above technical solution, by providing the side pieces, the junction box body can be rotated along both sides, and can be rotated to a certain angle when the installation position is narrow, so as to facilitate the installation or disassembly of the structure.

[0027] The present invention is further configured as follows: both sides of the rear side of the junction box body are rotatably connected with a connecting shaft, the outer side of the connecting shaft is rotatably connected to the side piece, the outer side of the connecting shaft is sleeved with a torsion spring, and the two ends of the torsion spring are respectively fixedly connected to the junction box body and the side piece.

[0028] By adopting the above technical solution, by setting a connecting shaft, the junction box body and the side piece can be easily connected, and the structures can rotate smoothly. The torsion spring can store force when the structure rotates, so as to reset it when it rebounds.

[0029] In summary, the present invention has the following beneficial effects:

[0030] A fixing seat is provided in combination with a connecting piece to firmly connect the device and the tower; an anti-slip frame is used to stabilize the bolt position of the connecting piece and the tower; after the connecting piece and the tower are securely installed, the sliding sleeve pressed by the hard spring will slide backward along the sliding pin, and the pull rod connected thereto rotates to push the limit frame and the anti-slip sleeve connected thereto to clamp the end of the bolt and limit it; an outer box is provided on the outside of the junction box body to protect it; the cable is protected by the sheath connected to the card frame; the front structure is installed by providing a side frame in combination with the sleeve frame; the assembly plate connected to the box body and the opening frame are connected by an air bag to provide buffering when rotation occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of the fixing seat of the present invention;

[0033] Figure 3 It is a schematic diagram of the structure of the connector of the present invention;

[0034] Figure 4 It is a schematic diagram of the box structure of the present invention;

[0035] Figure 5 is a schematic diagram of the position of the rubber seal of the present invention;

[0036] Figure 6 It is a schematic diagram of the structure of the rubber seal of the present invention;

[0037] Figure 7 It is a schematic diagram of the sheath structure of the present invention;

[0038] Figure 8 It is a schematic diagram of the card frame structure of the present invention;

[0039] Fig. 9 It is a schematic diagram of the structure of the anti-drop frame of the present invention;

[0040] Fig.10 It is a schematic diagram of the structure of the hard rubber pad of the present invention.

[0041] Reference numerals: 1, fixing seat; 2, connecting member; 201, side frame; 202, sleeve frame; 203, connecting piece; 204, air bag; 205, opening frame; 206, assembly plate; 3, box body; 301, outer box; 302, junction box body; 303, bracket; 303a, bracket body; 303b, slider; 303c, synchronization block; 303d, synchronization frame; 303e, clamping spring; 304, sheath; 304a, ring frame; 304 b. Empty frame; 304c. Rotating pin; 305. Card frame; 4. Box cover; 5. Anti-slip frame; 501. Frame seat; 502. Sliding pin; 503. Hard spring; 504. Sliding sleeve; 505. Pull rod; 506. Limiting frame; 507. Anti-slip sleeve; 6. Connecting piece; 7. Rubber seal; 8. Elastic ring; 9. Hard rubber pad; 10. Vertical rod; 11. Force-bearing piece; 12. Buffer spring; 13. Side piece; 14. Coupling; 15. Torsion spring. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0043] Embodiment 1:

[0044] refer to Figure 1-Figure 10A wind turbine junction box fixing mechanism comprises a fixing seat 1, a connecting piece 2 and a box body 3, wherein the connecting piece 2 is fixedly connected to the front side of the fixing seat 1, the box body 3 is installed on the front side of the connecting piece 2, a box cover 4 is installed on the front side of the box body 3, an anti-dropping frame 5 is provided on the front side of the box cover 4, a connecting piece 6 is fixedly connected to the outer side of the fixing seat 1, and the inner side of the connecting piece 6 is connected to the tower wall by bolts;

[0045] The connecting member 2 includes a side frame 201, a sleeve frame 202 is fixedly connected to the outer side of the side frame 201, a connecting piece 203 is fixedly connected to the front side of the sleeve frame 202, an air bag 204 is arranged on the outer side of the connecting piece 203, an opening frame 205 is arranged on the outer side of the air bag 204, an assembly plate 206 is bolted to the outer side of the opening frame 205, and the front side of the assembly plate 206 is fixedly connected to the box body 3 by bolts;

[0046] The anti-dropout frame 5 includes a frame seat 501, a sliding pin 502 is fixedly connected to the front side of the frame seat 501, a hard spring 503 is arranged on the outer side of the sliding pin 502, a sliding sleeve 504 is slidably connected to the outer side of the sliding pin 502, the front side of the sliding sleeve 504 is fixedly connected to the hard spring 503, a pull rod 505 is rotatably connected to the outer side of the sliding sleeve 504, the outer side of the pull rod 505 is rotatably connected to a limiting frame 506, a side of the limiting frame 506 away from the pull rod 505 is rotatably connected to an anti-dropout sleeve 507, and the outer side of the box cover 4 is rotatably connected to the limiting frame 506;

[0047] By setting a fixing seat 1 and a connecting piece 6, the device and the tower are firmly connected. The connecting piece 2 is used to connect the box body 3 and the fixing seat 1. The box cover 4 is used to protect the front side of the box body 3. The anti-dropping frame 5 is used to stabilize the bolt position of the connecting piece 6 and the tower. After the connecting piece 6 and the tower are firmly installed, the box cover 4 can be installed, and then the sliding sleeve 504 pressed by the hard spring 503 will slide backward along the sliding pin 502, and the pull rod 505 connected thereto rotates to push the limit frame 506 and the anti-dropping sleeve 507 connected thereto to get stuck at the end of the bolt. The part is limited and restricted by the pressure of the hard spring 503. Therefore, when the structure vibrates, the bolts that may become loose are restricted and difficult to rotate, so they will not become loose. The front structure is installed by setting the side frame 201 in conjunction with the sleeve frame 202, and the assembly plate 206 and the opening frame 205 connected to the box body 3 are connected by the air bag 204. When the tower body vibrates, the assembly plate 206 and the opening frame 205 will convert the vibration into smaller shaking through the buffer of the air bag 204, thereby avoiding loose connection or damage to components due to vibration of the structure.

[0048] like Figure 6As shown, both sides of the rubber seal 7 are set as trumpet-shaped openings, the inner side of the rubber seal 7 is set as a hollow ridge, and the number of elastic rings 8 is four. The trumpet-shaped openings can be used to guide the installation of the cables, so as to facilitate the introduction of the cables. When the cables are inserted, they are stretched for easy use. The hollow ridges can facilitate the position fitting of the connection between the outer box 301 and the rubber seal 7, thereby improving the sealing of the structure and avoiding water leakage of the structure.

[0049] like Fig.10 As shown, a hard rubber pad 9 is fixedly connected to the inner side of the anti-drop sleeve 507, and a polygonal groove is provided on the inner side of the hard rubber pad 9. By providing the hard rubber pad 9, the contact tightness with the bolt end can be further improved, and the polygonal groove can facilitate the fitting and limiting of the edges and corners of the bolt end.

[0050] like Figure 3 As shown, the inner side of the opening frame 205 is fixedly connected with a vertical rod 10, and the inner side of the connecting piece 203 is provided with a through hole for use with the vertical rod 10. By setting the vertical rod 10 to cooperate with the through hole, the displacement between the opening frame 205 and the connecting piece 203 can be easily limited.

[0051] like Figure 3 As shown, a force-bearing sheet 11 is fixedly connected to the outer side of the vertical rod 10, and a buffer spring 12 is fixedly connected to the top of the top force-bearing sheet 11 and the bottom of the bottom force-bearing sheet 11. The buffer spring 12 is fixedly connected to the opening frame 205 on the side away from the force-bearing sheet 11. By arranging the force-bearing sheet 11 in conjunction with the buffer spring 12, it is convenient to assist in the resetting of the airbag 204, and even if a single airbag 204 is loose, it can also have a buffering and resetting effect on the structure.

[0052] A brief description of the use process: when in use, the fixing seat 1 cooperates with the connecting piece 6 to firmly connect the device and the tower. When in use, the box cover 4 is used to protect the front side of the box body 3, and the anti-dropout frame 5 is used to stabilize the bolt position connecting the connecting piece 6 and the tower. After the connecting piece 6 and the tower are firmly installed, the box cover 4 is installed on the outside of the box body 3, and then the sliding sleeve 504 pressed by the hard spring 503 will slide backward along the sliding pin 502, and the pull rod 505 connected thereto rotates to push the limit frame 506 and the anti-dropout sleeve 507 connected thereto to get stuck. The end of the bolt is limited and restricted by the pressure of the hard spring 503. Therefore, when the structure vibrates, the bolt that may become loose is restricted and difficult to rotate, so it will not become loose. The front structure is installed by setting a side frame 201 in conjunction with the sleeve frame 202. The assembly plate 206 and the opening frame 205 connected to the box body 3 are connected by an air bag 204. When the tower body vibrates, the assembly plate 206 and the opening frame 205 will convert the vibration into smaller shaking through the buffering of the air bag 204, so as to protect the components.

[0053] Embodiment 2:

[0054] refer to Figure 1-Figure 8 A wind turbine junction box fixing mechanism comprises a fixing seat 1, a connecting piece 2 and a box body 3, wherein the connecting piece 2 is fixedly connected to the front side of the fixing seat 1, the box body 3 is installed on the front side of the connecting piece 2, a box cover 4 is installed on the front side of the box body 3, an anti-dropping frame 5 is provided on the front side of the box cover 4, a connecting piece 6 is fixedly connected to the outer side of the fixing seat 1, and the inner side of the connecting piece 6 is connected to the tower wall by bolts;

[0055] The box body 3 includes an outer box 301, a junction box body 302 is installed inside the outer box 301, a card frame 305 is fixedly connected to both sides of the outer box 301, a card slot is provided at the bottom of the inner side of the card frame 305, a card frame 303 is provided outside the outer box 301, and a sheath 304 is installed outside the card frame 303;

[0056] By setting an outer box 301 on the outside of the junction box body 302 to protect it, the junction box body 302 will not be directly damaged when it is exposed to heavy rain and snow outside. At the same time, the cables are protected by the sheath 304 connected to the bracket 303 to avoid large-angle bending or external impact and damage caused by rain, snow, hail and wind and sand.

[0057] like Figure 8As shown, the card frame 303 includes a frame body 303a, the inner side of the frame body 303a is provided with a cavity, the bottom of the frame body 303a is slidably connected with a slider 303b and a synchronization block 303c, the top of the slider 303b is fixedly connected with a synchronization frame 303d, the bottom of the synchronization frame 303d is fixedly connected with the synchronization block 303c, and the tops of the slider 303b and the synchronization block 303c are fixedly connected with a clamping spring 303e. By setting the frame body 303a to cooperate with the slider 303b and the synchronization block 303c, when the card frame 303 and the card frame 303 are connected, When the wire box body 302 is connected, it can be directly inserted into the inside of the card frame 305. The slider 303b will be displaced along the frame 303a when pressing the card frame 305. At this time, the clamping spring 303e is pressed. After displacing to the inside of the card slot, the clamping spring 303e rebounds and is clamped into the card slot to complete the installation of the structure. When disassembling, press the synchronization block 303c, and the slider 303b connected to it through the synchronization frame 303d will also be displaced. At this time, the card frame 303 can be removed from the inner side of the card frame 305.

[0058] like Figure 7 As shown, the sheath 304 includes a ring frame 304a, a hollow frame 304b and a rotating pin 304c. The left side of the left ring frame 304a is fixedly connected to the right side of the frame 303a. The ring frame 304a and the hollow frame 304b are rotatably connected via the rotating pin 304c. By arranging the ring frame 304a to cooperate with the hollow frame 304b and the rotating pin 304c, the external cables are passed through the ring frame 304a and the hollow frame 304b to protect them. At the same time, only small-angle bending is allowed under the limitation of the rotating pin 304c.

[0059] like Figure 6 As shown, a rubber seal 7 is clamped on the inner side of the outer box 301, and the rubber seal 7 is sleeved on the outer side of the external cable. An elastic ring 8 is provided on the inner side of the rubber seal 7. By providing the rubber seal 7, the sealing between the external cable and the outer box 301 can be improved. The elastic ring 8 is provided to improve the elasticity and sealing performance of the inner side of the rubber seal 7.

[0060] like Figure 4 As shown, both sides of the junction box body 302 are rotatably connected with side pieces 13, and the outer sides of the side pieces 13 are installed with cable glands. By setting the side pieces 13, the junction box body 302 can be rotated along both sides, and can be rotated to a certain angle when the installation position is narrow, so as to facilitate the installation or disassembly of the structure.

[0061] like Figure 4As shown, both sides of the rear side of the junction box body 302 are rotatably connected with a connecting shaft 14, the outer side of the connecting shaft 14 is rotatably connected to the side piece 13, and the outer side of the connecting shaft 14 is sleeved with a torsion spring 15, and the two ends of the torsion spring 15 are respectively fixedly connected to the junction box body 302 and the side piece 13. By setting the connecting shaft 14, the junction box body 302 and the side piece 13 can be easily connected, and the structures can rotate smoothly at the same time. The torsion spring 15 can store force when the structure rotates, so as to reset it when it rebounds.

[0062] Brief description of the use process: When in use, the outer box 301 protects the outer side of the junction box body 302, and will not directly damage the junction box body 302 when it is exposed to heavy rain and snow. At the same time, the cables are protected by the sheath 304 connected to the bracket 303 to avoid large-angle bending or damage caused by external impact, rain, snow, hail and wind and sand. The bracket 303a cooperates with the slider 303b and the synchronization block 303c, and can be directly inserted into the inside of the card frame 305 when connecting the bracket 303 and the junction box body 302. The slider 303b will move along the card frame 305 when pressing against the card frame 305. When the frame body 303a is displaced, the clamping spring 303e is pressed. After being displaced to the inside of the card slot, the clamping spring 303e rebounds and is clamped into the card slot to complete the installation of the structure. The ring frame 304a cooperates with the empty frame 304b and the rotating pin 304c to pass the external cables through the ring frame 304a and the empty frame 304b to protect them. At the same time, only a small angle of bending is allowed under the limitation of the rotating pin 304c. When disassembling, press the synchronization block 303c, and the slider 303b connected to it through the synchronization frame 303d will also be displaced. At this time, the card frame 303 can be removed from the inner side of the card frame 305.

[0063] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A wind turbine generator junction box fixing mechanism, comprising a fixing seat (1), a connecting piece (2) and a box body (3), characterized in that: The connecting member (2) is fixedly connected to the front side of the fixing seat (1), the box body (3) is installed on the front side of the connecting member (2), a box cover (4) is installed on the front side of the box body (3), an anti-drop frame (5) is provided on the front side of the box cover (4), a connecting piece (6) is fixedly connected to the outer side of the fixing seat (1), and the inner side of the connecting piece (6) is connected to the tower wall by bolts; The connecting member (2) comprises a side frame (201), the outer side of the side frame (201) is fixedly connected to a sleeve frame (202), the front side of the sleeve frame (202) is fixedly connected to a connecting piece (203), an air bag (204) is provided on the outer side of the connecting piece (203), an opening frame (205) is provided on the outer side of the air bag (204), an assembly plate (206) is bolted to the outer side of the opening frame (205), and the front side of the assembly plate (206) is fixedly connected to the box body (3) by bolts; The box body (3) comprises an outer box (301), a junction box body (302) is installed on the inner side of the outer box (301), a card frame (305) is fixedly connected to both sides of the outer box (301), a card slot is provided at the bottom of the inner side of the card frame (305), a card frame (303) is provided on the outer side of the outer box (301), and a sheath (304) is installed on the outer side of the card frame (303); The anti-dropout frame (5) comprises a frame seat (501), the front side of the frame seat (501) is fixedly connected to a sliding pin (502), the outer side of the sliding pin (502) is provided with a hard spring (503), the outer side of the sliding pin (502) is slidably connected to a sliding sleeve (504), the front side of the sliding sleeve (504) is fixedly connected to the hard spring (503), the outer side of the sliding sleeve (504) is rotatably connected to a pull rod (505), the outer side of the pull rod (505) is rotatably connected to a limiting frame (506), the side of the limiting frame (506) away from the pull rod (505) is rotatably connected to an anti-dropout sleeve (507), the outer side of the box cover (4) is rotatably connected to the limiting frame (506), and the anti-dropout sleeve (507) is clamped on the end of the bolt.

2. A wind turbine generator junction box fixing mechanism according to claim 1, characterized in that: The card frame (303) comprises a frame body (303a), the inner side of the frame body (303a) is provided with a cavity, the bottom of the frame body (303a) is slidably connected to a slider (303b) and a synchronization block (303c), the top of the slider (303b) is fixedly connected to a synchronization frame (303d), the bottom of the synchronization frame (303d) is fixedly connected to the synchronization block (303c), and the tops of the slider (303b) and the synchronization block (303c) are fixedly connected to a clamping spring (303e).

3. A wind turbine generator junction box fixing mechanism according to claim 2, characterized in that: The protective sleeve (304) comprises a ring frame (304a), a hollow frame (304b) and a rotating pin (304c); the left side of the left ring frame (304a) is fixedly connected to the right side of the frame body (303a); and the ring frame (304a) and the hollow frame (304b) are rotatably connected via the rotating pin (304c).

4. A wind turbine generator junction box fixing mechanism according to claim 1, characterized in that: A rubber seal (7) is clamped on the inner side of the outer box (301), the rubber seal (7) is sleeved on the outer side of the external cable, and an elastic ring (8) is provided on the inner side of the rubber seal (7).

5. A wind turbine generator junction box fixing mechanism according to claim 4, characterized in that: Both sides of the rubber seal (7) are configured as trumpet-shaped openings, the inner side of the rubber seal (7) is configured as a hollow ridge, and the number of the elastic rings (8) is four.

6. A wind turbine generator junction box fixing mechanism according to claim 1, characterized in that: A hard rubber pad (9) is fixedly connected to the inner side of the anti-drop sleeve (507), and a polygonal groove is provided on the inner side of the hard rubber pad (9).

7. A wind turbine generator junction box fixing mechanism according to claim 1, characterized in that: The inner side of the opening frame (205) is fixedly connected to a vertical rod (10), and the inner side of the connecting piece (203) is provided with a through hole for use with the vertical rod (10).

8. A wind turbine generator junction box fixing mechanism according to claim 7, characterized in that: A stress-bearing sheet (11) is fixedly connected to the outside of the vertical rod (10), and a buffer spring (12) is fixedly connected to the top of the top stress-bearing sheet (11) and the bottom of the bottom stress-bearing sheet (11), and the side of the buffer spring (12) away from the stress-bearing sheet (11) is fixedly connected to the opening frame (205).

9. A wind turbine generator junction box fixing mechanism according to claim 1, characterized in that: Side plates (13) are rotatably connected to both sides of the junction box body (302), and cable glands are installed on the outer sides of the side plates (13).

10. A wind turbine generator junction box fixing mechanism according to claim 9, characterized in that: Both sides of the rear side of the junction box body (302) are rotatably connected to a connecting shaft (14), the outer side of the connecting shaft (14) is rotatably connected to the side plate (13), the outer side of the connecting shaft (14) is sleeved with a torsion spring (15), and the two ends of the torsion spring (15) are respectively fixedly connected to the junction box body (302) and the side plate (13).

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