Photovoltaic module wiring device for photovoltaic power generation

Abstract

The application relates to the technical field of circuit wiring equipment, and particularly discloses a photovoltaic module wiring device for photovoltaic power generation, which comprises a connecting pipe, and the inner surfaces of the two ends of the connecting pipe are symmetrically fixedly connected with mounting rings. When the line completely passes through the connecting pipe, the rotation of the rotating ring can be loosened, and the line connection can be performed; when the line connection is completed, the rotating ring on the connecting pipe is rotated clockwise again to make the No. 1 plug-in plate and the No. 2 plug-in plate start to expand, and the connection part of the line is pulled to the inside of the connecting pipe; after the movement is completed, the rotating ring is loosened, the No. 1 plug-in plate and the No. 2 plug-in plate start to reset and are extruded and attached to the outer surface of the line, so that the fixing of the device and the line is automatically completed after the line connection is completed, the operation complexity of the device is greatly reduced, the traditional screw fixing mode is removed, and the equipment failure problem caused by screw rusting is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of circuit wiring equipment technology, specifically a photovoltaic module wiring device for photovoltaic power generation. Background Technology

[0002] In the field of photovoltaic power generation, photovoltaic module wiring devices are used to achieve reliable connection and protection of photovoltaic lines. Their core lies in ensuring the stability, sealing, and environmental adaptability of the line connections through mechanical structure design. This device, through the coordinated action of connecting pipes, fixing mechanisms, and sealing mechanisms, can adaptively fix lines of different diameters. Furthermore, through elastic buffering and sealing design, it prevents faults at line connections caused by external bending or water seepage. Suitable for photovoltaic system installation in complex outdoor environments, it is of great significance for improving the electrical connection reliability and service life of photovoltaic modules.

[0003] Traditional photovoltaic (PV) module wiring devices have significant shortcomings. In terms of fixing methods, traditional equipment relies heavily on rigid fixing methods such as screws or clips, which are not only cumbersome and time-consuming, but also prone to screw rust and corrosion, leading to fixing failure or poor contact, increasing equipment maintenance costs. Regarding compatibility, traditional devices struggle to adapt to wires of different diameters, requiring various sizes of clamps and limiting application scenarios. In terms of sealing performance, traditional structures often use simple adhesive sealing or split-shell housings, which are susceptible to gaps due to environmental temperature differences or external forces, allowing rainwater to seep in and cause short circuits. Heat dissipation is insufficient; the lack of effective heat dissipation design at wire connections easily leads to heat accumulation, affecting conductivity and even causing safety hazards. Furthermore, traditional devices have poor buffering capacity against wire bending, making them prone to wire breakage or loosening at connections under external forces, failing to meet the stability requirements of PV modules in complex installation environments. Innovative designs are urgently needed to improve automated fixing, sealing, and heat dissipation performance. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] This invention provides a photovoltaic module wiring device for photovoltaic power generation, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic module wiring device for photovoltaic power generation, comprising a connecting pipe, wherein mounting rings are symmetrically fixedly connected to the inner surfaces of both ends of the connecting pipe, and further comprising: a fixing mechanism fixedly mounted on the connecting pipe; and a sealing mechanism fixedly mounted on the inner surface of the connecting pipe; wherein the fixing mechanism comprises rotating rings symmetrically rotatably connected to the outer surfaces of both ends of the connecting pipe, wherein the two rotating rings are fixedly connected by a connecting rod, and a sliding groove is formed through the outer surfaces of both ends of the connecting pipe, wherein the rotating rings are disposed on the outer side of the sliding groove, and an inner ring is rotatably connected to the inner surfaces of both ends of the connecting pipe, wherein a connecting block is fixedly connected to the outer surface of the inner ring, and the connecting block is slidably disposed within the sliding groove, wherein the inner ring and the rotating ring are fixedly connected by the connecting block.

[0008] According to one embodiment of the present invention, a ventilation groove is formed in the middle wall of the connecting pipe, and a ventilation hole is formed through the middle outer surface of the connecting pipe, the ventilation hole communicating with the ventilation groove.

[0009] According to one embodiment of the present invention, the interior of the mounting ring is hollow, and a first plug plate is slidably fitted onto the inner surface of the mounting ring. A second plug plate is elastically slidably inserted into both ends of the first plug plate. A limiting groove is formed on the outer surface of the second plug plate, wherein the first plug plate and the second plug plate are limited by the limiting groove, and the first plug plate and the second plug plate are combined to form a ring.

[0010] According to one embodiment of the present invention, a connecting rope is fixedly connected to the bottom inner surface of the first plug plate, a first limiting ring is fixedly connected to the inner surface of the mounting ring, four first limiting rings are fixedly spaced along the central axis of the mounting ring, a sliding rod is elastically slidably connected inside the first limiting ring, a limiting buckle is fixedly connected to the inner surface of the mounting ring, and the connecting rope is fixedly connected to the sliding rod through the limiting buckle.

[0011] According to one embodiment of the present invention, a second limiting ring is fixedly connected to the surface of the inner ring near the mounting ring. The second limiting ring is arranged in the same shape as the first limiting ring, and the end of the slide rod away from the first limiting ring is elastically slidably connected inside the second limiting ring.

[0012] According to one embodiment of the present invention, an elastic bladder is fixedly connected to the outer end of the first plug plate, the elastic bladder is fixedly embedded inside the mounting ring, the elastic bladder is configured as an annular shape, and an elastic sheet is fixedly connected to the side surface of the connecting block, the elastic sheet is configured as corrugated, and the elastic sheet is disposed in the sliding groove.

[0013] According to one embodiment of the present invention, the sealing mechanism includes an isolation ring, which is symmetrically and fixedly connected to the inner surfaces of both sides of the connecting pipe. The isolation ring is disposed inside the mounting ring, and a connecting ring is rotatably embedded in the isolation ring. A connecting groove is provided through the isolation ring, and four connecting grooves are provided at fixed intervals along the central axis of the isolation ring.

[0014] According to one embodiment of the present invention, an adapter rod is fixedly connected to the side surface of the connecting ring, the adapter rod is disposed in the connecting groove, and the end of the adapter rod away from the connecting ring is fixedly connected to the surface of the inner ring away from the mounting ring.

[0015] According to one embodiment of the present invention, a collar is fixedly connected to the inner surface of the isolation ring. The collar is hollow inside. A movable plate is elastically slidably connected to the inner surface of the collar. Four movable plates are fixedly spaced around the central axis of the collar. A deflector plate is pressed onto the outer end of the movable plate. The inner surface of the deflector plate is inclined. The end of the deflector plate away from the movable plate is fixedly connected to the inner surface of the connecting ring. A sealing bladder is fixedly connected between the four movable plates. The wires to be connected are completely passed through the connecting tube, and the wires are connected outside the connecting tube. Then, the connected wires are... The entire installation is completed by pulling the connection point into the connecting pipe. Before passing the wire through the connecting pipe, rotate the rotating ring on the connecting pipe clockwise. When the connecting pipe rotates, it drives the inner ring to rotate through the connecting block, which causes the elastic plate in the slide groove to be squeezed. When the inner ring starts to rotate, it will drive the second limiting ring to start rotating relative to the slide rod. When the elastic force between the second limiting ring and the slide rod reaches its maximum, it will drive the slide rod to start sliding along the first limiting ring. Finally, the first plug plate is pulled by the cooperation of the limiting buckle and the connecting rope, which causes the first plug plate and the second plug plate to expand, thereby increasing the size of the through hole on the mounting ring.

[0016] (III) Beneficial Effects

[0017] This invention provides a wiring device for photovoltaic modules used in photovoltaic power generation. It has the following advantages:

[0018] (I) The photovoltaic module wiring device for photovoltaic power generation can be used to connect the circuit by releasing the rotating ring after the circuit has completely passed through the connecting pipe. At this time, the No. 1 and No. 2 plug plates will begin to retract and reset under the action of the elastic force, so that the inner surfaces of the No. 1 and No. 2 plug plates will be pressed and adhered to the outer surface of the circuit. After the circuit is connected, the rotating ring on the connecting pipe will be rotated clockwise again to cause the No. 1 and No. 2 plug plates to expand and pull the connection of the circuit into the inside of the connecting pipe. After the movement is completed, the rotating ring will be released, and the No. 1 and No. 2 plug plates will reset and press and adhere to the outer surface of the circuit. This achieves automatic fixation of the device and the circuit after the circuit is connected, which greatly reduces the complexity of the operation of the device and eliminates the traditional screw fixing method, which greatly reduces the equipment failure problem caused by screw rust.

[0019] (II) The photovoltaic module wiring device for photovoltaic power generation has a variable No. 1 and No. 2 plug plate, which allows the device to be matched with wires of different diameters, greatly improving the applicability of the device. At the same time, the one-piece molded connecting pipe is different from the traditional rotating snap-fit ​​shell, which greatly reduces the problem of water ingress into the device and avoids short circuits at the wire connection. The ventilation slots and ventilation holes can also greatly reduce the wall thickness of the connecting pipe at the wire connection, thereby greatly reducing the internal temperature of the connecting pipe and avoiding the problem of excessive temperature at the wire connection during operation, thus greatly improving the stability of the line operation.

[0020] (III) The photovoltaic module wiring device for this photovoltaic power generation has an elastic bladder fixedly connected to the outer surface of the No. 1 plug plate, and the No. 1 plug plate is movably attached to the inner surface of the mounting ring. This allows the assembly of the No. 1 and No. 2 plug plates to move in multiple directions within the mounting ring. This means that when the lines at both ends of the connecting pipe are bent, the central axis of the assembly formed by the No. 1 and No. 2 plug plates can be misaligned relative to the central axis of the mounting ring, ensuring that the No. 1 and No. 2 plug plates remain attached to the outer surface of the lines. This provides a buffer distance at the bend point when the lines are bent, significantly improving the protection of the lines without losing their fixing function to the circuit. When the inner surface... When the ring rotates, it drives the connecting ring on the isolation ring to rotate via the adapter rod. This causes the actuating plate on the inner surface of the connecting ring to start rotating clockwise, gradually losing its squeezing effect on the moving plate. At this time, the moving plate begins to move inward under the action of elasticity, causing the sealing bladder to expand and ensuring that the connection of the circuit can pass through the bladder normally. When the connection of the circuit moves between the two isolation rings, the rotating ring is released. At this time, the actuating plate begins to reset counterclockwise, squeezing the moving plate to contract. Finally, the sealing bladder is squeezed against the outer surface of the circuit. This achieves simultaneous fixation of the circuit and simultaneous squeezing and sealing of both sides of the circuit connection, further reducing the problem of water seepage at the circuit connection causing short circuits. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the connecting tube of the present invention;

[0023] Figure 3 This is a schematic diagram of the rotating ring and its connection structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the elastic sheet and its connection structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the connecting rope and its connecting structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the elastic capsule and its connection structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the No. 1 plug-in plate and its connection structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the toggle plate and its connection structure of the present invention.

[0029] In the diagram: 1. Connecting pipe; 2. Mounting ring; 3. Fixing mechanism; 31. Rotating ring; 32. Slide groove; 33. Inner ring; 34. Connecting block; 35. Ventilation slot; 36. Ventilation hole; 37. No. 1 plug-in plate; 38. No. 2 plug-in plate; 39. Limiting groove; 310. Connecting rope; 311. No. 1 limiting ring; 312. Slide rod; 313. Limiting buckle; 314. No. 2 limiting ring; 315. Elastic bladder; 316. Elastic sheet; 4. Sealing mechanism; 41. Isolation ring; 42. Connecting ring; 43. Connecting groove; 44. Adapter rod; 45. Collar; 46. Moving plate; 47. Actuating plate; 48. Sealing bladder. Detailed Implementation

[0030] 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 scope of protection of the present invention.

[0031] First embodiment: as follows Figures 1 to 8 As shown, the present invention provides a technical solution: a photovoltaic module wiring device for photovoltaic power generation, including a connecting pipe 1, with mounting rings 2 symmetrically fixedly connected to the inner surfaces of both ends of the connecting pipe 1, and further including:

[0032] Fixing mechanism 3 is fixedly installed on connecting pipe 1;

[0033] Sealing mechanism 4 is fixedly installed on the inner surface of connecting pipe 1;

[0034] The fixing mechanism 3 includes a rotating ring 31, which is symmetrically rotatably connected to the outer surfaces of both ends of the connecting pipe 1. The two rotating rings 31 are fixedly connected by a connecting rod. The outer surfaces of both ends of the connecting pipe 1 are provided with a sliding groove 32. The rotating ring 31 is located on the outside of the sliding groove 32. The inner surfaces of both ends of the connecting pipe 1 are rotatably connected to an inner ring 33. The outer surface of the inner ring 33 is fixedly connected to a connecting block 34. The connecting block 34 is slidably disposed in the sliding groove 32. The inner ring 33 and the rotating ring 31 are fixedly connected by the connecting block 34.

[0035] A ventilation groove 35 is provided in the middle wall of the connecting pipe 1, and a ventilation hole 36 is provided through the middle outer surface of the connecting pipe 1, and the ventilation hole 36 is connected to the ventilation groove 35.

[0036] The interior of the mounting ring 2 is hollow. A first plug plate 37 is slidably fitted onto the inner surface of the mounting ring 2. A second plug plate 38 is elastically slidably inserted into both ends of the first plug plate 37. A limiting groove 39 is formed on the outer surface of the second plug plate 38. The first plug plate 37 and the second plug plate 38 are limited by the limiting groove 39. The first plug plate 37 and the second plug plate 38 are combined to form a ring.

[0037] A connecting rope 310 is fixedly connected to the bottom inner surface of the first plug plate 37. A first limiting ring 311 is fixedly connected to the inner surface of the mounting ring 2. Four first limiting rings 311 are set at fixed intervals along the central axis of the mounting ring 2. A sliding rod 312 is elastically slidably connected inside the first limiting ring 311. A limiting buckle 313 is fixedly connected to the inner surface of the mounting ring 2. The connecting rope 310 is fixedly connected to the sliding rod 312 through the limiting buckle 313.

[0038] A second limiting ring 314 is fixedly connected to the surface of the inner ring 33 near the mounting ring 2. The second limiting ring 314 is set in the same shape as the first limiting ring 311. The end of the slide rod 312 away from the first limiting ring 311 is elastically slidably connected inside the second limiting ring 314.

[0039] An elastic bladder 315 is fixedly connected to the outer end of the first plug plate 37. The elastic bladder 315 is fixedly embedded inside the mounting ring 2. The elastic bladder 315 is ring-shaped. An elastic sheet 316 is fixedly connected to the side surface of the connecting block 34. The elastic sheet 316 is corrugated and is located in the slide groove 32.

[0040] Second embodiment: as follows Figures 1 to 8As shown, the sealing mechanism 4 includes an isolation ring 41, which is symmetrically and fixedly connected to the inner surfaces of both sides of the connecting pipe 1. The isolation ring 41 is located inside the mounting ring 2. A connecting ring 42 is rotatably embedded in the isolation ring 41. A connecting groove 43 is provided through the isolation ring 41. Four connecting grooves 43 are provided at fixed intervals along the central axis of the isolation ring 41.

[0041] An adapter rod 44 is fixedly connected to the side surface of the connecting ring 42. The adapter rod 44 is located in the connecting groove 43. The end of the adapter rod 44 away from the connecting ring 42 is fixedly connected to the surface of the inner ring 33 away from the mounting ring 2.

[0042] A collar 45 is fixedly connected to the inner surface of the isolation ring 41. The inside of the collar 45 is hollow. A movable plate 46 is elastically slidably connected to the inner surface of the collar 45. Four movable plates 46 are fixedly spaced around the central axis of the collar 45. A toggle plate 47 is pressed onto the outer end of the movable plate 46. The inner surface of the toggle plate 47 is inclined. The end of the toggle plate 47 away from the movable plate 46 is fixedly connected to the inner surface of the connecting ring 42. A sealing bladder 48 is fixedly connected between the four movable plates 46.

[0043] During operation, the wires to be connected are completely passed through the connecting pipe 1, and the wires are connected outside the connecting pipe 1. Then, the connected wires are pulled into the connecting pipe 1 to complete the overall installation. Before passing the wires through the connecting pipe 1, the rotating ring 31 on the connecting pipe 1 can be rotated clockwise. When the connecting pipe 1 rotates, it drives the inner ring 33 to rotate through the connecting block 34, which causes the elastic sheet 316 in the slide groove 32 to be compressed. When the inner ring 33 starts to rotate, it will drive the second limiting ring 314 to start rotating relative to the slide rod 312. When the elastic force between the second limiting ring 314 and the slide rod 312 reaches its maximum, it will drive the slide rod 312 to start sliding along the first limiting ring 311. Finally, through the matching of the limiting buckle 313 and the connecting rope 310, the installation is completed. Pulling the first connector plate 37 causes it and the second connector plate 38 to expand, thus increasing the size of the through hole on the mounting ring 2. Once the wire has completely passed through the connecting tube 1, the rotation of the rotating ring 31 can be released, and the wire connection can be made. At this time, under the action of the elastic force, the first connector plate 37 and the second connector plate 38 begin to retract and reset, causing the inner surfaces of the first connector plate 37 and the second connector plate 38 to press against the outer surface of the wire. After the wire connection is completed, rotate the rotating ring 31 on the connecting tube 1 clockwise again to cause the first connector plate 37 and the second connector plate 38 to expand, pulling the connection point of the wire into the connecting tube 1. After the movement is completed, release the rotating ring 31, and the first connector plate 37 and the second connector plate 38... The device begins to reposition and press against the outer surface of the wiring, automatically fixing the device to the wiring after connection. This significantly reduces the complexity of operation and eliminates the need for traditional screw fastening, greatly reducing equipment malfunctions caused by rusted screws. The variable first and second connector plates 37 and 38 allow the device to accommodate wiring of different diameters, greatly improving its versatility. The one-piece molded connecting tube 1, unlike traditional rotary-locking housings, significantly reduces water ingress and prevents short circuits at wiring connections. Furthermore, the ventilation slots 35 and vents 36 further reduce the wall thickness of the connecting tube 1 at wiring connections, thus significantly reducing the cost of the connecting tube 1. Internal temperature is controlled, thus preventing overheating at the wiring connection points during operation and significantly improving the stability of the wiring. Because the outer surface of the first plug-in plate 37 is fixedly connected to an elastic bladder 315, and the first plug-in plate 37 is movably fitted against the inner surface of the mounting ring 2, the assembly of the first plug-in plate 37 and the second plug-in plate 38 can move in multiple directions within the mounting ring 2. This allows the central axis of the assembly formed by the first plug-in plate 37 and the second plug-in plate 38 to be offset relative to the central axis of the mounting ring 2 when the wiring at both ends of the connecting pipe 1 is bent. This ensures that the first plug-in plate 37 and the second plug-in plate 38 remain in contact with the outer surface of the wiring, providing a buffer distance at the bend when the wiring is bent.This design significantly enhances the protection of the circuit without sacrificing its fixation function. When the inner ring 33 rotates, it drives the connecting ring 42 on the isolation ring 41 to rotate via the adapter rod 44. This causes the actuating plate 47 on the inner surface of the connecting ring 42 to rotate clockwise, gradually releasing its pressure on the moving plate 46. At this point, the moving plate 46, under elastic force, begins to move into the collar 45, causing the sealing bladder 48 to expand. This ensures the circuit connection can pass normally through the collar 45. When the circuit connection moves between the two isolation rings 41, the rotating ring 31 is released. The actuating plate 47 then begins to reset counterclockwise, compressing the moving plate 46 and ultimately pressing the sealing bladder 48 against the outer surface of the circuit. This achieves simultaneous fixation of the circuit and simultaneous sealing of both sides of the circuit connection, further reducing the risk of short circuits due to water seepage at the connection.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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.

[0045] 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 alterations 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 photovoltaic module wiring device for photovoltaic power generation, comprising a connecting pipe (1), characterized in that: The inner surfaces of both ends of the connecting pipe (1) are symmetrically fixedly connected with mounting rings (2), and it also includes: Fixing mechanism (3), which is fixedly installed on connecting pipe (1); A sealing mechanism (4) is fixedly installed on the inner surface of the connecting pipe (1); The fixing mechanism (3) includes a rotating ring (31), which is symmetrically rotatably connected to the outer surfaces of both ends of the connecting pipe (1). The two rotating rings (31) are fixedly connected by a connecting rod. The outer surfaces of both ends of the connecting pipe (1) are provided with a sliding groove (32). The rotating ring (31) is located on the outside of the sliding groove (32). The inner surfaces of both ends of the connecting pipe (1) are rotatably connected with an inner ring (33). The outer surface of the inner ring (33) is fixedly connected with a connecting block (34). The connecting block (34) is slidably disposed in the sliding groove (32). The inner ring (33) and the rotating ring (31) are fixedly connected by the connecting block (34). The interior of the mounting ring (2) is hollow. A first plug plate (37) is slidably attached to the inner surface of the mounting ring (2). A second plug plate (38) is elastically slidably inserted into both ends of the first plug plate (37). A limiting groove (39) is opened on the outer surface of the second plug plate (38). The first plug plate (37) and the second plug plate (38) are limited by the limiting groove (39). The first plug plate (37) and the second plug plate (38) are combined to form a ring. A connecting rope (310) is fixedly connected to the bottom inner surface of the first plug plate (37), and a first limiting ring (311) is fixedly connected to the inner surface of the mounting ring (2). Four first limiting rings (311) are fixedly spaced along the central axis of the mounting ring (2). A sliding rod (312) is elastically slidably connected inside the first limiting ring (311). A limiting buckle (313) is fixedly connected to the inner surface of the mounting ring (2). The connecting rope (310) is fixedly connected to the sliding rod (312) through the limiting buckle (313). The inner ring (33) is fixedly connected to a second limiting ring (314) on the side surface near the mounting ring (2). The second limiting ring (314) is set in the same shape as the first limiting ring (311). The end of the slide rod (312) away from the first limiting ring (311) is elastically slidably connected to the second limiting ring (314). The sealing mechanism (4) includes an isolation ring (41), which is symmetrically fixedly connected to the inner surfaces of both sides of the connecting pipe (1). The isolation ring (41) is located inside the mounting ring (2). A connecting ring (42) is rotatably embedded in the isolation ring (41). A connecting groove (43) is provided through the isolation ring (41). Four connecting grooves (43) are provided at fixed intervals along the central axis of the isolation ring (41). The side surface of the connecting ring (42) is fixedly connected to an adapter rod (44), the adapter rod (44) is set in the connecting groove (43), and the end of the adapter rod (44) away from the connecting ring (42) is fixedly connected to the surface of the inner ring (33) away from the mounting ring (2); The inner surface of the isolation ring (41) is fixedly connected to a collar (45). The inside of the collar (45) is hollow. The inner surface of the collar (45) is elastically slidably connected to a movable plate (46). The movable plates (46) are fixedly spaced at four intervals around the central axis of the collar (45). The outer end of the movable plate (46) is pressed with a toggle plate (47). The inner surface of the toggle plate (47) is inclined. The end of the toggle plate (47) away from the movable plate (46) is fixedly connected to the inner surface of the connecting ring (42). A sealing bladder (48) is fixedly connected between the four movable plates (46).

2. The photovoltaic module wiring device for photovoltaic power generation according to claim 1, characterized in that: A ventilation groove (35) is provided in the middle wall of the connecting pipe (1), and a ventilation hole (36) is provided through the middle outer surface of the connecting pipe (1). The ventilation hole (36) is connected to the ventilation groove (35).

3. A photovoltaic module wiring device for photovoltaic power generation according to claim 2, characterized in that: An elastic bladder (315) is fixedly connected to the outer end of the first plug plate (37). The elastic bladder (315) is fixedly embedded inside the mounting ring (2). The elastic bladder (315) is ring-shaped. An elastic sheet (316) is fixedly connected to the side surface of the connecting block (34). The elastic sheet (316) is corrugated and is located in the groove (32).

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