Connecting device of wind power tubular bus and junction box

Abstract

The utility model relates to a connecting device for a wind power tubular bus and a junction box. The connecting device comprises the junction box, a fixed clamping mechanism arranged in the junction box and used for connecting the tubular bus, and a damping mounting mechanism arranged outside the junction box and used for fixing the tubular bus. The damping mounting mechanism comprises a lower mounting assembly and an upper mounting assembly, the lower mounting assembly comprises a mounting shell, a fixing lug plate used for being connected with the upper mounting assembly is fixedly arranged on the outer side of the mounting shell, a mounting groove is formed in the mounting shell, a mounting block is slidably connected in the mounting groove, a damping spring is arranged in the mounting groove, and one end of the damping spring is fixedly connected with the mounting block. One end of the mounting block is fixedly connected with the mounting shell, the other end of the mounting block is fixedly connected with the mounting shell, the mounting block is provided with a placing groove for placing the tubular bus, the mounting block is provided with a connecting plate for connecting the upper mounting assembly, and the upper mounting assembly and the lower mounting assembly have the same structure. According to the invention, the connection stability of the tubular bus and the junction box is improved, and burnout accidents of a power transmission line are reduced.

Description

Technical Field

[0001] The present application relates to the field of power transmission and distribution equipment technology, and in particular to a connection device between a wind power tubular busbar and a junction box. Background Art

[0002] Wind turbine tubular busbars are power transmission lines used in wind power generation systems, featuring excellent insulation and high mechanical strength. They are typically constructed by encasing the conductor in a special insulating material, forming a tubular structure to prevent current leakage and protect against external interference. Their internal structure generally consists of a conductor and an insulating layer. The conductor, typically made of highly conductive materials such as copper or aluminum, transmits electrical energy. The insulating layer, made of high-performance insulating materials such as polyethylene or cross-linked polyethylene, isolates the conductor from the external environment, preventing current leakage and potential electric shock hazards.

[0003] The wind turbine tubular busbar is installed on the inner wall of the tower. One end of the tubular busbar is connected to the generator twist cable, and the other end is connected to the converter's moving cable. A junction box is located at the top of the tower where the tubular busbar and the generator twist cable meet. The shaking of the tubular busbar can cause the bolts inside the junction box to loosen, compromising the stability of the tubular busbar connection and potentially causing burnout of the power transmission line.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the shaking of the tubular busbar reduces the connection stability between the junction box and the tubular busbar, which can easily lead to burning accidents of the power transmission line. Utility Model Content

[0005] In order to solve the problem that the shaking of the tubular busbar reduces the connection stability between the junction box and the tubular busbar, which easily leads to burning accidents in the power transmission line, the present application provides a connection device between the wind power tubular busbar and the junction box.

[0006] This application provides a connection device between a wind power tubular busbar and a junction box, which adopts the following technical solution:

[0007] A connecting device for a wind power tubular busbar and a junction box, comprising a junction box, a fixing clamping mechanism arranged in the junction box for connecting the tubular busbar, and a shock-absorbing mounting mechanism arranged outside the junction box for fixing the tubular busbar; the shock-absorbing mounting mechanism comprises a lower mounting assembly and an upper mounting assembly, the lower mounting assembly comprises a mounting shell, a fixing ear plate for connecting the upper mounting assembly is fixedly arranged on the outer side of the mounting shell, a mounting groove is provided in the mounting shell, a mounting block is slidably connected in the mounting groove and a shock-absorbing spring is provided, one end of the shock-absorbing spring is fixedly connected to the mounting block, and the other end is fixedly connected to the mounting shell, a placement groove for placing the tubular busbar is provided on the mounting block, and a connecting plate for connecting the upper mounting assembly is provided on the mounting block, and the upper mounting assembly has the same structure as the lower mounting assembly.

[0008] By adopting the above technical solution, when the tubular busbar shakes, the tubular busbar drives the mounting block to slide in the mounting groove, the shock-absorbing spring in the mounting groove reduces the shock of the mounting block and the tubular busbar, the shock-absorbing mounting mechanism reduces the shaking of the tubular busbar, and the fixed clamping mechanism clamps and fixes the tubular busbar. The shock-absorbing mounting mechanism reduces the impact of the shaking of the tubular busbar on the connection stability of the junction box and the tubular busbar, thereby reducing burning accidents caused by power transmission lines.

[0009] Optionally, a limiting block is provided on the side wall of the mounting block, a first limiting sliding groove is provided on the inner wall of the mounting shell, and the limiting block is slidably connected to the first limiting sliding groove.

[0010] By adopting the above technical solution, the limiting block and the first limiting sliding groove limit the sliding direction of the mounting block, thereby increasing the connection stability between the mounting block and the mounting shell.

[0011] Optionally, a limited telescopic rod is provided in the shock-absorbing spring, one end of the limited telescopic rod is connected to the mounting shell, and the other end is connected to the mounting block.

[0012] By adopting the above technical solution, the limiting telescopic rod limits the telescopic direction of the shock-absorbing spring, reducing the phenomenon of entanglement and knotting of the shock-absorbing spring during the telescopic process, and improving the shock-absorbing effect of the shock-absorbing spring.

[0013] Optionally, the limiting telescopic rod includes a fixed sleeve connected to the mounting shell, a second limiting slide groove is opened in the fixed sleeve, a movable rod is slidably connected in the fixed sleeve, and the movable rod is connected to a limiting plate at one end close to the fixed sleeve, and the limiting plate is slidably connected to the second limiting slide groove.

[0014] By adopting the above technical solution, the mounting block drives the movable rod to slide in the fixed sleeve during movement, and the limiting plate limits the sliding process of the movable rod, thereby reducing the possibility of the movable rod slipping from the fixed sleeve.

[0015] Optionally, the fixed clamping mechanism includes a lower fixed block fixedly arranged in the junction box and an upper fixed block detachably connected to the lower fixed block, the lower fixed block is provided with a lower fixed groove for placing the tubular busbar, and the upper fixed block is provided with an upper fixed groove for placing the tubular busbar.

[0016] By adopting the above technical solution, the tubular busbar extends into the junction box and is placed in the lower fixing groove. Then the upper fixing groove is aligned with the tubular busbar and the upper fixing block is connected to the lower fixing block, thereby connecting the tubular busbar to the junction box.

[0017] Optionally, a sliding rod is connected to the lower fixed block, and a connecting hole is opened on the upper fixed block. The sliding rod passes through the connecting hole and is slidably connected to the upper fixed block.

[0018] By adopting this technical solution, the upper fixing block is slidably connected to the slide bar, making it easier to position the upper fixing block. When installing the tubular busbar, the upper fixing block is pushed along the slide bar away from the lower fixing block to reserve space for the tubular busbar. When the tubular busbar is placed in the lower fixing groove, the upper fixing block is pushed along the slide bar toward the lower fixing block, connecting the upper and lower fixing blocks, thereby clamping and securing the tubular busbar.

[0019] Optionally, anti-slip pads are provided in both the lower fixing groove and the upper fixing groove.

[0020] By adopting the above technical solution, the provision of the anti-slip pad increases the connection stability between the tubular busbar and the fixed clamping mechanism.

[0021] Optionally, heat dissipation plates are provided on the side walls of the upper fixing block and the lower fixing block.

[0022] By adopting the above technical solution, the heat generated by the tubular busbar during power transmission is transferred to the upper fixing block and the lower fixing block. The provision of the heat sink improves the heat dissipation efficiency of the upper fixing block and the lower fixing block, thereby further reducing the possibility of burning accidents in the power transmission line.

[0023] Optionally, a heat dissipation port is provided on the junction box, and a dustproof net is provided inside the heat dissipation port.

[0024] By adopting the above technical solution, the provision of the heat dissipation port further improves the heat dissipation effect of the junction box, and the provision of the dustproof net reduces the possibility of dust entering the junction box.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The damping spring and limit telescopic rod in the damping installation mechanism reduce the shaking of the tubular busbar. The fixed clamping mechanism increases the connection stability between the tubular busbar and the junction box, thereby reducing the impact of the shaking of the tubular busbar on the connection stability of the tubular busbar and the junction box, thereby reducing the occurrence of burning accidents in the transmission line.

[0027] 2. The upper fixing block is slidably connected to the slide rod, which increases the convenience of the fixed clamping mechanism for clamping the tubular busbar. The provision of the anti-slip pad further increases the clamping stability of the fixed clamping mechanism for the tubular busbar.

[0028] 3. The setting of the heat dissipation plate and heat dissipation port improves the heat dissipation effect of the junction box, thereby further reducing the burning accidents caused by the transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a structural diagram of a connection device between a wind power tubular busbar and a junction box;

[0030] Figure 2 It is a schematic diagram of the cross-sectional structure of the junction box;

[0031] Figure 3 It is a schematic diagram of the cross-sectional structure of the junction box and the fixed clamping mechanism;

[0032] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a shock-absorbing mounting mechanism;

[0033] Figure 5 It is a partial structural diagram of the shock-absorbing mounting mechanism.

[0034] Explanation of the accompanying drawings: 1. Junction box; 11. Box door; 12. Mounting plate; 13. Mounting bolt; 14. Heat dissipation vent; 15. Dust screen; 2. Fixing and clamping mechanism; 21. Lower fixing block; 211. Lower fixing groove; 22. Upper fixing block; 221. Upper fixing groove; 222. Connecting hole; 23. Slide rod; 24. Heat dissipation plate; 25. Anti-slip pad; 3. Shock-absorbing mounting mechanism; 31. Lower mounting assembly; 311. Mounting shell; 3111. Mounting groove; 3112. First limiting slide groove; 312. Fixed ear plate; 313. Mounting block; 3131. Placement groove; 3132. Connecting plate; 314. Limiting block; 315. Shock-absorbing spring; 316. Limiting telescopic rod; 3161. Fixing sleeve; 3162. Second limiting slide groove; 3163. Movable rod; 3164. Limiting plate; 32. Upper mounting assembly. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] An embodiment of the present application discloses a connection device between a wind power tubular busbar and a junction box.

[0037] Reference Figure 1 、 Figure 2 and Figure 3 A device for connecting a wind turbine tubular busbar to a junction box includes a junction box 1, a fixing clamping mechanism 2 disposed within the junction box 1 for connecting the tubular busbar, and a shock-absorbing mounting mechanism 3 disposed outside the junction box 1 for securing the tubular busbar. The shock-absorbing mounting mechanism 3 includes a lower mounting assembly 31 and an upper mounting assembly 32. The junction box 1 is provided with a door 11, which is detachably connected to the junction box 1 via bolts. A mounting plate 12 is fixedly connected to the side wall of the junction box 1, and mounting bolts 13 are threadedly connected to the mounting plate 12.

[0038] The fixing and clamping mechanism 2 includes a lower fixing block 21 fixedly mounted within the junction box 1 and an upper fixing block 22 detachably connected to the lower fixing block 21 via bolts. The lower fixing block 21 has a lower fixing slot 211 for receiving the tubular busbar, while the upper fixing block 22 has an upper fixing slot 221 for receiving the tubular busbar. A sliding rod 23 is fixedly connected to the lower fixing block 21. The upper fixing block 22 has a connecting hole 222 through which the sliding rod 23 passes and slides into contact with the upper fixing block 22. Heat sinks 24 are fixedly mounted on the sidewalls of both the upper and lower fixing blocks 22 and 21. Anti-slip pads 25 are fixedly mounted within the lower and upper fixing slots 211 and 221. The junction box 1 has a heat dissipation vent 14, within which a dust screen 15 is fixedly mounted.

[0039] Reference Figure 4 and Figure 5 The lower mounting assembly 31 includes a mounting shell 311. A fixing lug 312 for connecting to the upper mounting assembly 32 is fixedly disposed on the outer side of the mounting shell 311. The fixing lug 312 is detachably connected to the upper mounting assembly 32 via bolts. A mounting slot 3111 is defined within the mounting shell 311. A mounting block 313 is slidably connected within the mounting slot 3111. Limiting blocks 314 are fixedly disposed on opposing side walls of the mounting block 313. First limiting grooves 3112 are defined on the inner walls of both sides of the mounting shell 311. The limiting blocks 314 are slidably connected to the first limiting grooves 3112. The provision of two sets of limiting blocks 314 and the first limiting grooves 3112 enhances the stability of the sliding connection between the mounting block 313 and the mounting shell 311. The mounting block 313 is provided with a placement groove 3131 for placing the tubular busbar. A connecting plate 3132 for connecting to the upper mounting assembly 32 is fixedly provided on the mounting block 313. The connecting plate 3132 is detachably connected to the upper mounting assembly 32 by bolts.

[0040] A shock-absorbing spring 315 is disposed within the mounting slot 3111. One end of the shock-absorbing spring 315 is fixedly connected to the mounting block 313, and the other end is fixedly connected to the mounting housing 311. A limited telescopic rod 316 is disposed within the shock-absorbing spring 315. The limited telescopic rod 316 comprises a fixed sleeve 3161 fixedly connected to the mounting housing 311. A second limited slot 3162 is defined within the fixed sleeve 3161. A movable rod 3163 is slidably connected within the fixed sleeve 3161. The end of the movable rod 3163 closest to the fixed sleeve 3161 is fixedly connected to a limited plate 3164, which is slidably connected to the second limited slot 3162. The upper mounting assembly 32 has the same structure as the lower mounting assembly 31.

[0041] The implementation principle of the device for connecting a wind power tubular busbar to a junction box 1 according to an embodiment of the present application is as follows: the tubular busbar is placed in the placement groove 3131 of the lower mounting assembly 31, the upper mounting assembly 32 is aligned with the tubular busbar and connected to the lower mounting assembly 31, the mounting block 313 is fixed by bolts on the connecting plate 3132, and the mounting shell 311 is fixed by bolts on the fixing lug plate 312. The tubular busbar is then inserted into the junction box 1, the upper fixing block 22 is pushed along the slide bar 23 away from the lower fixing block 21, and space is reserved for the tubular busbar. The tubular busbar is then placed in the lower fixing groove 211, the upper fixing block 22 is pushed along the slide bar 23 toward the lower fixing block 21, and the lower fixing block 21 and the upper fixing block 22 are connected and fixed by bolts, thereby connecting and fixing the tubular busbar to the junction box 1. When the tubular busbar shakes, the tubular busbar drives the mounting block 313 to slide in the mounting shell 311, the shock-absorbing spring 315 and the limiting telescopic rod 316 reduce the shaking, and the upper fixing block 22 and the lower fixing block 21 clamp and fix the tubular busbar, thereby increasing the connection stability between the tubular busbar and the junction box 1 and reducing the impact of shaking.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A connection device between a wind power tubular busbar and a junction box, characterized by: The utility model comprises a junction box (1), a fixing clamping mechanism (2) arranged in the junction box (1) for connecting a tubular busbar, and a shock-absorbing mounting mechanism (3) arranged outside the junction box (1) for fixing the tubular busbar; the shock-absorbing mounting mechanism (3) comprises a lower mounting assembly (31) and an upper mounting assembly (32); the lower mounting assembly (31) comprises a mounting shell (311); a fixing ear plate (312) for connecting the upper mounting assembly (32) is fixedly arranged on the outer side of the mounting shell (311); a mounting groove (311) is provided in the mounting shell (311); 1), a mounting block (313) is slidably connected in the mounting groove (3111) and is provided with a shock-absorbing spring (315), one end of the shock-absorbing spring (315) is fixedly connected to the mounting block (313), and the other end is fixedly connected to the mounting shell (311), a placement groove (3131) for placing a tubular busbar is provided on the mounting block (313), and a connecting plate (3132) for connecting the upper mounting assembly (32) is provided on the mounting block (313), and the upper mounting assembly (32) has the same structure as the lower mounting assembly (31).

2. The device for connecting a wind power tubular busbar and a junction box according to claim 1, characterized in that: A limiting block (314) is provided on the side wall of the mounting block (313), a first limiting sliding groove (3112) is provided on the inner wall of the mounting shell (311), and the limiting block (314) is slidably connected to the first limiting sliding groove (3112).

3. The device for connecting a wind power tubular busbar to a junction box according to claim 1, characterized in that: A limited telescopic rod (316) is provided in the shock-absorbing spring (315), one end of the limited telescopic rod (316) is connected to the mounting shell (311), and the other end is connected to the mounting block (313).

4. The device for connecting a wind power tubular busbar to a junction box according to claim 3, characterized in that: The limiting telescopic rod (316) includes a fixed sleeve (3161) connected to the mounting shell (311), a second limiting sliding groove (3162) is provided in the fixed sleeve (3161), a movable rod (3163) is slidably connected in the fixed sleeve (3161), and one end of the movable rod (3163) close to the fixed sleeve (3161) is connected to a limiting plate (3164), and the limiting plate (3164) is slidably connected to the second limiting sliding groove (3162).

5. The device for connecting a wind power tubular busbar and a junction box according to claim 1, characterized in that: The fixing clamping mechanism (2) comprises a lower fixing block (21) fixedly arranged in the junction box (1) and an upper fixing block (22) detachably connected to the lower fixing block (21); the lower fixing block (21) is provided with a lower fixing groove (211) for accommodating a tubular busbar; and the upper fixing block (22) is provided with an upper fixing groove (221) for accommodating a tubular busbar.

6. The device for connecting a wind power tubular busbar and a junction box according to claim 5, characterized in that: The lower fixed block (21) is connected to a slide rod (23), the upper fixed block (22) is provided with a connection hole (222), and the slide rod (23) passes through the connection hole (222) and is slidably connected to the upper fixed block (22).

7. The device for connecting a wind power tubular busbar to a junction box according to claim 5, characterized in that: Anti-slip pads (25) are provided in both the lower fixing groove (211) and the upper fixing groove (221).

8. The device for connecting a wind power tubular busbar to a junction box according to claim 5, characterized in that: Heat dissipation plates (24) are provided on the side walls of the upper fixing block (22) and the lower fixing block (21).

9. The device for connecting a wind power tubular busbar and a junction box according to claim 8, characterized in that: A heat dissipation opening (14) is provided on the junction box (1), and a dustproof net (15) is provided in the heat dissipation opening (14).

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