Photovoltaic module wiring device

Abstract

The utility model relates to the technical fields of junction box disclose a kind of photovoltaic module wiring device, including terminal post, wire pressing plate, driving mechanism and shell;Cavity is provided in shell, at least two cables are sleeved on terminal post, cable is worn on shell, the output end of driving mechanism is connected with wire pressing plate, driving mechanism drives wire pressing plate to move close to or away from terminal post, so that wire pressing plate can compress cable on terminal post.Two cables are connected by terminal post cooperation wire pressing plate, the connection of cable is more firm, and wire pressing plate is driven by driving mechanism to compress cable, avoid cable connection place to loosen, solve the technical problem of the frequency of personnel maintenance operation in the prior art is increased, while the use of circuit safety causes adverse effect, reach the technical effect that cable connection is more safe and reliable, without frequent maintenance.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology, and in particular to a photovoltaic module wiring device. Background Technology

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect at the semiconductor interface to directly convert light energy into electrical energy. It mainly consists of three parts: solar panels, controllers, and inverters. The main components are made of electronic components. Solar cells are connected in series and then encapsulated for protection to form large-area solar cell modules. Combined with power controllers and other components, a photovoltaic power generation device is formed. Then, the photovoltaic electrical modules are wired to provide power.

[0003] Currently, in photovoltaic power generation, insulating tape is commonly used to wrap the wires between photovoltaic modules. This method results in poor overall connection stability and makes the wires susceptible to environmental factors during long-term outdoor use. This can lead to the insulating tape coming off, causing the wires to loosen and malfunction, increasing the frequency of maintenance and repair work, and negatively impacting the safety of the circuit. Utility Model Content

[0004] The purpose of this invention is to provide a photovoltaic module wiring device that solves the technical problem in the prior art that increases the frequency of personnel inspection and maintenance work, while also adversely affecting the safety of circuit use.

[0005] To solve the above-mentioned technical problems, this utility model provides a photovoltaic module wiring device, including a terminal block, a pressure plate, a drive mechanism, and a housing;

[0006] The housing has a receiving cavity, and the terminal block, the wire plate and the driving mechanism are all disposed in the receiving cavity. The terminal block and the driving mechanism are fixedly connected to the housing.

[0007] At least two cables are sleeved on the terminal block, and the cables pass through the housing. The output end of the drive mechanism is connected to the pressure plate. The drive mechanism drives the pressure plate to move closer to or away from the terminal block, so that the pressure plate can press the cables tightly onto the terminal block.

[0008] In an optional embodiment, the end of the cable is provided with a connector, the connector is connected to the cable, and the connector is sleeved on the terminal block;

[0009] The pressure plate is provided with a through hole, and the pressure plate can be sleeved on the terminal block through the through hole so that the pressure plate presses the multiple connectors.

[0010] In an optional embodiment, a cable tray is provided between the cable and the housing, the cable tray is sleeved on the cable, and the cable tray is connected to the housing.

[0011] In an optional embodiment, the drive mechanism includes a screw and a cylinder. The screw is threadedly connected to the cylinder, the cylinder is fixed to the bottom of the accommodating cavity, and the pressure plate is sleeved on the screw. The screw and the pressure plate are rotatably connected, and the screw can bring the pressure plate closer to or away from the terminal.

[0012] In an optional embodiment, a limit rod is provided on the end face of the cylinder, the limit rod is arranged parallel to the screw, the limit rod passes through the pressure plate, and the pressure plate is slidably connected to the limit rod.

[0013] In an optional embodiment, a piston is rotatably connected to one end of the screw that extends into the cylinder, and the piston is slidably connected to the inner wall of the cylinder. The screw drives the piston to reciprocate along the axis of the cylinder.

[0014] The piston is provided with a first elastic element at the end opposite to the screw. The two ends of the first elastic element abut against the inner wall of the piston and the cylinder, respectively. The first elastic element has a tendency to press the piston against the screw.

[0015] In an optional implementation, a connecting tube and a rubber gasket are also included;

[0016] The rubber pad is fitted onto the cable, and the rubber pad is connected to one end of the connecting tube. The other end of the connecting tube is connected to the cylinder. The piston supplies air to the connecting tube by squeezing the first elastic element, causing the rubber pad to expand and seal the gap between the cable and the housing.

[0017] In an optional embodiment, a knob is provided at the end of the screw away from the piston, and the knob is provided with a plurality of snap-fit ​​holes;

[0018] A locking assembly is provided on the inner wall of the accommodating cavity. The locking assembly is connected to the housing and is disposed opposite to the knob. The locking assembly can extend into the snap-fit ​​hole and fix the screw by means of the knob.

[0019] In an optional embodiment, the locking assembly includes a bracket, a second elastic element, a guide post, a fixing plate, and a pin.

[0020] The bracket is fixed on the inner wall of the accommodating cavity and is fixedly connected to the housing. The bracket is provided with a guide post perpendicular to the inner wall of the accommodating cavity. The guide post is slidably connected to the bracket. The end of the guide post near the knob is connected to the fixing plate, and the end of the fixing plate away from the bracket is provided with the pin.

[0021] A second elastic element is provided between the fixed plate and the bracket. The second elastic element has a tendency to cause the fixed plate to drive the pin to press against the knob, so that the pin extends into the snap hole on the knob.

[0022] In an optional embodiment, the housing includes a top cover, a junction box, a buckle, and a hook;

[0023] The upper cover and the wire box are arranged opposite to each other, the upper cover is placed on the wire box, and the upper cover and the wire box form the receiving cavity;

[0024] Multiple hooks and buckles are provided in the same quantity. The hooks are evenly arranged along the circumference of the top cover, and the buckles are evenly arranged along the circumference of the wire box. The hooks and buckles are arranged in a one-to-one correspondence, and the buckles are connected to the hooks.

[0025] This utility model provides a photovoltaic module wiring device, including terminals, a pressure plate, a drive mechanism, and a housing. The housing has a receiving cavity, within which the terminals, pressure plate, and drive mechanism are all housed. The terminals and drive mechanism are fixedly connected to the housing. At least two cables are sleeved on the terminals and pass through the housing. The output end of the drive mechanism is connected to the pressure plate, which moves the pressure plate closer to or away from the terminals, pressing the cables firmly against them. The receiving cavity within the housing seals the cable connection, preventing leakage and potential hazards. The connection between the two cables via the terminals and pressure plate is more secure, and the drive mechanism presses the pressure plate to prevent loosening at the connection. This solves the technical problems of existing technologies that increase the frequency of maintenance and inspection, while negatively impacting circuit safety. It achieves a safer and more reliable cable connection, eliminating the need for frequent maintenance. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the photovoltaic module wiring device mentioned in the embodiments of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the upper cover of the photovoltaic module wiring device mentioned in the embodiments of this utility model;

[0028] Figure 3This is a schematic diagram of the wiring box, pressure plate, drive mechanism and terminal block of the photovoltaic module wiring device mentioned in the embodiments of this utility model;

[0029] Figure 4 This is a cross-sectional view of the drive mechanism and the limiting rod of the photovoltaic module wiring device mentioned in the embodiments of this utility model;

[0030] Figure 5 This is a cross-sectional view of the cable, terminal block, rubber pad, cable tray, and support plate of the photovoltaic module wiring device mentioned in the embodiments of this utility model.

[0031] In the diagram, 1-Junction box; 2-Cable reel; 3-Cable; 4-Mounting block; 5-Snap fastener; 6-Hook; 7-Top cover; 8-Bracket; 9-Second elastic element; 10-Sealing gasket; 11-Pin; 12-Fixing plate; 13-Guide post; 14-Support plate; 15-Wire clamping plate; 16-Cylinder; 17-Snap-fit ​​hole; 18-Knob; 19-Screw; 20-Limit rod; 21-Piston; 22-Sealing ring; 23-First elastic element; 24-Connecting pipe; 25-Rubber pad; 26-Terminal. Detailed Implementation

[0032] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In related technologies, the method of wrapping the wires between photovoltaic modules with insulating tape in photovoltaic power generation results in poor overall connection stability. During long-term outdoor use, the insulation tape is easily affected by environmental factors, which can cause the tape to fall off, resulting in loosening and faults between the wires. This increases the frequency of maintenance and repair work and also has an adverse impact on the safety of the circuit.

[0035] In view of this, such as Figures 1-5As shown, some embodiments of this utility model provide a photovoltaic module wiring device, including a terminal block 26, a pressure plate 15, a drive mechanism, and a housing; the housing has a receiving cavity, and the terminal block 26, the pressure plate 15, and the drive mechanism are all disposed in the receiving cavity, and the terminal block 26 and the drive mechanism are fixedly connected to the housing; at least two cables 3 are sleeved on the terminal block 26, and the cables 3 pass through the housing; the output end of the drive mechanism is connected to the pressure plate 15, and the drive mechanism drives the pressure plate 15 to move closer to or away from the terminal block 26, so that the pressure plate 15 can press the cables 3 tightly onto the terminal block 26.

[0036] In the above embodiment, the terminal 26 can be cylindrical and made of conductive material. The bottom of the terminal 26 has a diameter reduction section, with the diameter at the bottom being larger than that at the top. This allows the terminal 26 to be abutted by the diameter reduction section when the pressure plate 15 presses against it, thus enabling the pressure plate 15 to better fix the end face of the cable 3. The terminal 26 can be fixed to the bottom of the receiving cavity, and the terminal 26 and the receiving cavity can be insulated. That is, the housing can be made of insulating material or metal material. An insulating layer, such as rubber or ceramic, can be provided between the terminal 26 and the housing. Furthermore, the pressure plate 15 can be made of insulating material and can be rectangular. The pressure plate 15 is connected to the output end of the drive mechanism, and the drive mechanism can be fixed at the bottom of the receiving cavity. The output end of the drive mechanism is set away from the bottom of the receiving cavity. The drive mechanism can drive the pressure plate 15 to move parallel to or away from the bottom of the receiving cavity, so that the pressure plate 15 can press the two cables 3 sleeved on the terminal 26, so that the two cables 3 are firmly connected.

[0037] This utility model provides a photovoltaic module wiring device, including a terminal block 26, a pressure plate 15, a drive mechanism, and a housing. The housing has a receiving cavity, within which the terminal block 26, pressure plate 15, and drive mechanism are all housed. The terminal block 26 and drive mechanism are fixedly connected to the housing. At least two cables 3 are sleeved on the terminal block 26 and pass through the housing. The output end of the drive mechanism is connected to the pressure plate 15. The drive mechanism moves the pressure plate 15 closer to or further away from the terminal block 26, pressing the cables 3 firmly onto the terminal block 26. The receiving cavity within the housing seals the connection point of the cables 3, preventing leakage and potential hazards. The connection between the two cables 3 via the terminal block 26 and the pressure plate 15 makes the connection more secure. Furthermore, the drive mechanism drives the pressure plate 15 to press the cables 3 firmly, preventing loosening at the connection point. This solves the technical problem in the prior art of increasing the frequency of personnel maintenance and adversely affecting circuit safety, achieving a safer and more reliable cable connection that eliminates the need for frequent maintenance.

[0038] In an optional embodiment, the end of the cable 3 is provided with a connector, which is connected to the cable 3 and is sleeved on the terminal block 26; the pressure plate 15 is provided with a through hole, which allows the pressure plate 15 to be sleeved on the terminal block 26, thereby pressing the multiple connectors together.

[0039] In the above embodiment, each cable 3 has a connector at its end. The connector can be connected to the wire core inside the cable 3. The connector sleeved on one side of the terminal 26 can be set as a ring. The diameter of the round hole on the connector is larger than the diameter of one end of the terminal 26 and smaller than the diameter of the terminal 26 at the diameter change. The connector is made of conductive material, such as brass. On the housing, two cables 3 can be arranged on the same straight line. Each end of the two cables 3 is provided with a connector and located in the accommodating cavity. The two connectors are sleeved on the terminal 26 and stacked. The driving mechanism can drive the pressure plate 15 to press the two connectors, so that the two cables 3 are firmly connected. The pressure plate 15 can also be provided with a round hole at the center position. The diameter of the round hole is larger than the diameter of one end of the terminal 26 and smaller than the diameter of the terminal 26 at the diameter change. The round hole can be sleeved on the terminal 26 and the pressure plate 15 can be pressed on the stacked connectors, so that the cable 3 are more firmly connected.

[0040] In an optional embodiment, a cable tray 2 is provided between the cable 3 and the housing, the cable tray 2 is sleeved on the cable 3, and the cable tray 2 is connected to the housing.

[0041] In the above embodiments, the cable tray 2 can be cylindrical and made of rubber. The cable tray 2 is hollow inside, and each cable 3 can be provided with a cable tray 2. Corresponding through holes are provided on the side wall of the housing. The outer wall of the cable tray 2 can be fixed in the through holes on the side wall of the housing. It can be fixed by adhesive or snap-fit, thereby avoiding direct hard contact between the cable 3 and the housing, and avoiding damage to the cable 3 that could lead to breakage and cause danger.

[0042] In an optional embodiment, the drive mechanism includes a screw 19 and a cylinder 16. The screw 19 is threadedly connected to the cylinder 16, and the cylinder 16 is fixed at the bottom of the accommodating cavity. A pressure plate 15 is sleeved on the screw 19, and the screw 19 is rotatably connected to the pressure plate 15. The screw 19 can bring the pressure plate 15 closer to or away from the terminal 26.

[0043] In the above embodiments, both the screw 19 and the cylinder 16 can be made of metal. The cylinder 16 can be cylindrical and is vertically disposed at the bottom of the accommodating cavity. The cylinder 16 has internal holes. The screw 19 is disposed with its axis coinciding with that of the cylinder 16. One end of the screw 19 passes through the surface of the cylinder 16 and extends into the cylinder 16. The screw 19 is threadedly connected to the cylinder 16, so that the rotating screw 19 can reciprocate along the axis of the cylinder 16. Furthermore, a bearing can be installed on the side of the screw 19 away from the bottom of the accommodating cavity. The pressure plate 15 is sleeved on the bearing, so that the pressure plate 15 can be rotatably connected to the screw 19 through the bearing. During the reciprocating movement of the screw 19, the screw 19 can reciprocate with the pressure plate 15 through the bearing, so that the pressure plate 15 can be pressed tightly onto the connector on the terminal 26, or the pressure plate 15 can move away from the terminal 26 to loosen the connector on the terminal 26.

[0044] In an optional embodiment, a limit rod 20 is provided on the end face of the cylinder 16. The limit rod 20 is arranged parallel to the screw 19. The limit rod 20 passes through the pressure plate 15, and the pressure plate 15 is slidably connected to the limit rod 20.

[0045] In the above embodiment, the limiting rod 20 can be cylindrical, and two limiting rods 20 can be provided. The two limiting rods 20 are respectively provided on both sides of the screw 19. The two limiting rods 20 and the screw 19 are provided in the same plane. The two limiting rods 20 are respectively passed through the pressure plate 15 and slide with the pressure plate 15, so that the pressure plate 15 can be limited by the limiting rods 20 on both sides during the up and down sliding process, so as to prevent the pressure plate 15 from rotating with the rotation of the screw 19.

[0046] Optionally, a through hole can be provided on each side of the pressure plate 15, and a terminal 26 can be provided on each side of the cylinder 16. The two terminals 26 are respectively provided with two through holes on the pressure plate 15. Each terminal 26 can be fitted with two connectors, so that the two terminals 26 on both sides can be pressed by a pressure plate 15.

[0047] In an optional embodiment, a piston 21 is rotatably connected to one end of the screw 19 that extends into the cylinder 16. The piston 21 is slidably connected to the inner wall of the cylinder 16. The screw 19 drives the piston 21 to reciprocate along the axis of the cylinder 16. A first elastic element 23 is provided at the end of the piston 21 away from the screw 19. The two ends of the first elastic element 23 abut against the piston 21 and the inner wall of the cylinder 16, respectively. The first elastic element 23 has a tendency to press the piston 21 against the screw 19.

[0048] In the above embodiment, the piston 21 can be made of metal and can be arranged perpendicular to the axis of the screw 19. The piston 21 can be connected to the end face of the screw 19 through a bearing, so that the piston 21 can be driven to move relative to the cylinder 16 through the axial movement of the screw 19. A first elastic element 23 is provided on the side of the piston 21 away from the screw 19. The first elastic element 23 can be set as a spring. The first elastic element 23 has a tendency to move the piston 21 away from the bottom of the accommodating cavity. The first elastic element 23 can be used to support the piston 21 and prevent the piston 21 from falling freely.

[0049] In an optional embodiment, a connecting tube 24 and a rubber pad 25 are also included; the rubber pad 25 is sleeved on the cable 3, and one end of the rubber pad 25 is connected to the connecting tube 24. The other end of the connecting tube 24 is connected to the cylinder 16. The piston 21 supplies air to the connecting tube 24 by squeezing the first elastic element 23, so that the rubber pad 25 expands and seals the gap between the cable 3 and the housing.

[0050] In the above embodiments, the connecting tube 24 can be made of metal or rubber, and multiple rubber pads 25 can be provided, with the number of rubber pads 25 matching the number of cables 3. The rubber pads 25 can be snapped into each cable tray 2, and each rubber pad 25 can communicate with the connecting tube 24, so that each rubber pad 25 can be expanded by air supplied by the connecting tube 24, making the area around the cable 3 more sealed and preventing liquid or other impurities from entering the accommodating cavity. Furthermore, one end of the connecting tube 24 is connected to the cylinder 16, and the connection point of the connecting tube 24 is located on the side of the piston 21 near the ground. Thus, when the screw 19 presses the pressure plate 15 against the terminal 26, the piston 21 compresses the gas in the cylinder 16 and discharges it into the connecting tube 24, causing the connecting tube 24 to be inflated and blowing up multiple rubber pads 25, thereby satisfying the requirement that while the pressure plate 15 presses against multiple connecting posts, each rubber pad 25 seals the area around the cable 3.

[0051] Optionally, a sealing ring 22 is provided around the piston 21. The sealing ring 22 can be made of rubber. The sealing ring 22 is tightly connected to the inner wall of the piston 21 and the cylinder 16 respectively, so that the pressure in the connecting pipe 24 can be maintained and the expansion of each rubber pad 25 can be maintained continuously.

[0052] In an optional embodiment, a knob 18 is provided at the end of the screw 19 away from the piston 21, and the knob 18 is provided with a plurality of snap-fit ​​holes 17; a locking assembly is provided on the inner wall of the accommodating cavity, the locking assembly is connected to the housing, the locking assembly is disposed opposite to the knob 18, and the locking assembly can extend into the snap-fit ​​holes 17, so that the screw 19 is fixed by the knob 18.

[0053] In the above embodiment, a locking assembly is provided at the top of the accommodating cavity. The locking assembly is fixed to the housing. The knob 18 on the screw 19 can be circular. The screw 19 is fixedly connected to the knob 18. The knob 18 is provided with multiple snap-fit ​​holes 17. Multiple through holes are evenly arranged circumferentially along the axis of the knob 18. The snap-fit ​​holes 17 can be through holes or blind holes. Each snap-fit ​​hole 17 is at the same distance from the axis of the screw 19, so that the locking assembly can smoothly enter the snap-fit ​​holes 17 on the knob 18 in the rotating screw 19, so that the knob 18 is fixed by the locking assembly. This prevents the screw 19 from rotating on its own, which would cause the wire clamping plate 15 and the terminal 26 to loosen and affect the connection effect of the cable 3. At the same time, it also prevents the gas filling in each rubber pad 25 from being insufficient, which would prevent the accommodating cavity from being effectively sealed.

[0054] In an optional embodiment, the locking assembly includes a bracket 8, a second elastic element 9, a guide post 13, a fixed plate 12, and a pin 11. The bracket 8 is fixed to the inner wall of the accommodating cavity and is fixedly connected to the housing. The bracket 8 is provided with a guide post 13 perpendicular to the inner wall of the accommodating cavity. The guide post 13 is slidably connected to the bracket 8. The end of the guide post 13 near the knob 18 is connected to the fixed plate 12, and the end of the fixed plate 12 away from the bracket 8 is provided with the pin 11. The second elastic element 9 is provided between the fixed plate 12 and the bracket 8. The second elastic element 9 has a tendency to cause the fixed plate 12 to drive the pin 11 to press the knob 18, so that the pin 11 extends into the snap-fit ​​hole 17 on the knob 18.

[0055] In the above embodiment, the bracket 8 can be made of metal and can be T-shaped. The bracket 8 is vertically connected to the top of the receiving cavity. The side of the bracket 8 away from the top of the receiving cavity is set as a plane. The guide post 13 is vertically slidably connected to the plane of the bracket 8. There can be two guide posts 13. The second elastic element 9 can be set as a spring. One end of the second elastic element 9 abuts against the plane of the guide post 13 away from the top of the receiving cavity. The other end of the second elastic element 9 is connected to the fixed plate 12. The side of the fixed plate 12 away from the bracket 8 can be provided with multiple pins 11. The pins 11 are cylindrical and the axis of the pins 11 is parallel to the axis of the screw 19. There can be one or four pins 11. The number of locking holes 17 can be a multiple of four, so that when the screw 19 rotates the knob 18 to any angle, the locking holes 17 on the knob 18 can always be locked by the pins 11.

[0056] After the bracket 8 is fixed to the inner wall of the accommodating cavity, the movement range of the fixed plate 12 and the pin 11 is restricted by the two guide posts 13. The fixed plate 12, carrying the pin 11, can move back and forth along the axis of the screw 19. However, the fixed plate 12 cannot rotate relative to the screw 19 under the action of the guide posts 13, so that the second elastic element 9 presses the fixed plate 12 and the pin 11 onto the knob 18. After the pin 11 is engaged in the locking hole 17, the knob 18 cannot rotate, thereby preventing the screw 19 from rotating automatically.

[0057] In an optional embodiment, the housing includes a top cover 7, a junction box 1, a latch 5, and a hook 6; the top cover 7 and the junction box 1 are arranged opposite to each other, with the top cover 7 covering the junction box 1, and the top cover 7 and the junction box 1 forming an accommodating cavity; multiple hooks 6 and latches 5 are provided in the same quantity, with the hooks 6 evenly arranged along the circumference of the top cover 7 and the latches 5 evenly arranged along the circumference of the junction box 1, and the hooks 6 and latches 5 are arranged in a one-to-one correspondence, with the latches 5 connected to the hooks 6.

[0058] In the above embodiment, the housing may include a top cover 7 and a junction box 1. The top cover 7 and the junction box 1 have the same projected size. The top cover 7 is placed on the junction box 1 to form an accommodating cavity inside. The top cover 7 is provided with four hooks 6, which are symmetrically arranged on both sides of the top cover 7. Four buckles 5, which correspond one-to-one with the four hooks 6, are also symmetrically arranged on both sides of the junction box 1. Thus, after the top cover 7 is placed on the junction box 1, the four buckles 5 can be connected to the four hooks 6, so that the top cover 7 and the junction box 1 are firmly connected.

[0059] Optionally, a sealing gasket 10 can be provided between the top cover 7 and the junction box 1. The size of the top cover 7 can be larger than the size of the junction box 1. The top of the inner wall of the top cover 7 can be provided with a sealing gasket 10 that fits the opening of the junction box 1. The sealing gasket 10 can be rectangular. So when the top cover 7 is placed on the junction box 1, the sealing gasket 10 can seal the opening of the junction box 1, effectively sealing the gap between the top cover 7 and the junction box 1, and preventing moisture and other impurities from entering the receiving cavity.

[0060] Optionally, a support plate 14 is provided between the terminal 26 and the junction box 1. The support plate 14 can be made of insulating material and can be located on one side of the cylinder 16. The support plate 14 is used to support the terminal 26.

[0061] Optionally, multiple mounting blocks 4 are provided on the side of the line box 1 away from the top cover 7. The mounting blocks 4 are evenly arranged around the line box 1 and are fixed to the mounting frame of the photovoltaic module by bolts.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A photovoltaic module wiring device, characterized in that, Includes terminals, pressure plate, drive mechanism, and housing; The housing has a receiving cavity, and the terminal block, the wire plate and the driving mechanism are all disposed in the receiving cavity. The terminal block and the driving mechanism are fixedly connected to the housing. At least two cables are sleeved on the terminal block, and the cables pass through the housing. The output end of the drive mechanism is connected to the pressure plate. The drive mechanism drives the pressure plate to move closer to or away from the terminal block, so that the pressure plate can press the cables tightly onto the terminal block.

2. The photovoltaic module wiring device according to claim 1, characterized in that, The cable is provided with a connector at its end, the connector is connected to the cable, and the connector is sleeved on the terminal block; The pressure plate is provided with a through hole, and the pressure plate can be sleeved on the terminal block through the through hole so that the pressure plate presses the multiple connectors.

3. The photovoltaic module wiring device according to claim 1, characterized in that, A cable tray is provided between the cable and the housing, the cable tray is sleeved on the cable, and the cable tray is connected to the housing.

4. The photovoltaic module wiring device according to claim 1, characterized in that, The driving mechanism includes a screw and a cylinder. The screw is threadedly connected to the cylinder, and the cylinder is fixed to the bottom of the accommodating cavity. The pressure plate is sleeved on the screw, and the screw is rotatably connected to the pressure plate. The screw can bring the pressure plate closer to or away from the terminal.

5. The photovoltaic module wiring device according to claim 4, characterized in that, A limit rod is provided on the end face of the cylinder. The limit rod is arranged parallel to the screw and passes through the pressure plate. The pressure plate is slidably connected to the limit rod.

6. The photovoltaic module wiring device according to claim 4, characterized in that, The screw extends into the cylinder and is rotatably connected to a piston. The piston is slidably connected to the inner wall of the cylinder. The screw drives the piston to reciprocate along the axis of the cylinder. A first elastic element is provided at the end of the piston away from the screw. The two ends of the first elastic element abut against the piston and the inner wall of the cylinder, respectively. The first elastic element has a tendency to press the piston against the screw.

7. The photovoltaic module wiring device according to claim 6, characterized in that, It also includes connecting pipes and rubber gaskets; The rubber pad is fitted onto the cable, and the rubber pad is connected to one end of the connecting tube. The other end of the connecting tube is connected to the cylinder. The piston supplies air to the connecting tube by squeezing the first elastic element, causing the rubber pad to expand and seal the gap between the cable and the housing.

8. The photovoltaic module wiring device according to claim 6, characterized in that, A knob is provided at the end of the screw opposite to the piston, and the knob is provided with multiple snap-fit ​​holes; A locking assembly is provided on the inner wall of the accommodating cavity. The locking assembly is connected to the housing and is disposed opposite to the knob. The locking assembly can extend into the snap-fit ​​hole and fix the screw by means of the knob.

9. The photovoltaic module wiring device according to claim 8, characterized in that, The locking assembly includes a bracket, a second elastic element, a guide post, a fixing plate, and a pin. The bracket is fixed on the inner wall of the accommodating cavity and is fixedly connected to the housing. The bracket is provided with a guide post perpendicular to the inner wall of the accommodating cavity. The guide post is slidably connected to the bracket. The end of the guide post near the knob is connected to the fixing plate, and the end of the fixing plate away from the bracket is provided with the pin. A second elastic element is provided between the fixed plate and the bracket. The second elastic element has a tendency to cause the fixed plate to drive the pin to press against the knob, so that the pin extends into the snap hole on the knob.

10. The photovoltaic module wiring device according to any one of claims 1-9, characterized in that, The housing includes a top cover, a junction box, a buckle, and a hook; The upper cover and the wire box are arranged opposite to each other, the upper cover is placed on the wire box, and the upper cover and the wire box form the receiving cavity; Multiple hooks and buckles are provided in the same quantity. The hooks are evenly arranged along the circumference of the top cover, and the buckles are evenly arranged along the circumference of the wire box. The hooks and buckles are arranged in a one-to-one correspondence, and the buckles are connected to the hooks.

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