A connector for solar photovoltaic cables

Abstract

A solar photovoltaic cable connector belongs to the technical field of photovoltaic cable connection. It aims to solve the problem that the existing photovoltaic cable connector is prone to moisture failure due to the penetration of rainwater and dew. The connector includes a male head and a female head for fixing two wires, and the ends of the male head and the female head away from each other are provided with a flow guide mechanism for guiding the dew or rainwater. The flow guide mechanism includes a rubber sleeve and two symmetrically arranged flow guide components. The flow guide component includes two fixed columns, which are fixed on both sides of the male head or the female head. The circumferences of the two fixed columns are rotatably connected with mounting rods, and the mounting rods are fixedly connected with flow guide covers. The rubber sleeve is sleeved on the circumference of the wire and the inner wall is in contact with the wire. The two flow guide covers merge with the rubber sleeve to form a complete cover body for guiding the dew or rainwater. It is used for photovoltaic cable connection and can guide moisture and prevent penetration to ensure stable operation of the system.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic cable connection technology, and in particular to a connector for solar photovoltaic cables. Background Technology

[0002] During operation, solar photovoltaic systems rely on connectors to connect the wires of the two photovoltaic panel cables to ensure stable current transmission. These connectors are key components in photovoltaic systems to maintain circuit connectivity and are commonly used in outdoor photovoltaic power stations, distributed photovoltaic devices, and other scenarios. They are exposed to the open environment for extended periods and are constantly exposed to natural factors such as dew and rain.

[0003] When existing photovoltaic cable connectors are used to connect photovoltaic panels outdoors, the short conductors are often suspended, causing the connector to be tilted. Rainwater or dew easily flows along the conductor surface and gradually accumulates at the connector end. Even with simple sealing structures, it is difficult to completely prevent moisture from slowly seeping into the male or female connector, causing internal conductive components to become damp. This can lead to short circuits, shorten the connector's lifespan, and adversely affect the stable operation of the entire photovoltaic system. Therefore, a new connector for solar photovoltaic cables is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where the conductors are typically suspended, causing the connector to be generally tilted. This allows rainwater or dew to easily flow along the conductor surface and seep into the connector. Therefore, this invention provides a connector for solar photovoltaic cables.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A connector for solar photovoltaic cables includes a male and a female connector for fixing two sections of wires. The ends of the male and female connectors that are far apart from each other are provided with a flow guiding mechanism to guide dew or rainwater. The flow guiding mechanism includes a rubber sleeve and multiple symmetrically arranged flow guiding components. Each flow guiding component includes multiple fixed posts, which are respectively fixed on both sides of the male or female connector. Each fixed post is rotatably connected to a mounting rod, and flow guiding covers are fixedly connected between the mounting rods. The rubber sleeve is fitted around the circumference of the wire and its inner wall is in contact with the wire. The multiple flow guiding covers are combined and abut against the rubber sleeve to form a complete cover for guiding dew or rainwater.

[0006] As a further improvement of this utility model, the air guide is flared and the larger opening faces the male end.

[0007] As a further embodiment of this utility model, the rubber sleeve is provided with an annular groove around its circumference, and when the flow guide is closed, one end is located in the groove and abuts against the groove.

[0008] As a further embodiment of this utility model, one end of the rubber sleeve is tapered and the end with a smaller diameter faces away from the guide shield.

[0009] As a further embodiment of this utility model, protruding fixing blocks are fixedly connected to both sides of the two opposing air guides, and the two adjacent fixing blocks are fixed together by bolts.

[0010] As a further embodiment of this utility model, one end of the male connector has two integrally formed retaining plates, each retaining plate having a stepped protrusion on one side. One end of the female connector has two integrally formed through-holes, and the retaining plates are respectively inserted into the through-holes.

[0011] As a further improvement of this utility model, a sealing ring is provided around the circumference of the male connector, and the sealing ring serves to waterproof the male connector when it is inserted into the female connector.

[0012] As a further embodiment of this utility model, the ends of the male and female heads that are far apart from each other are integrally formed with multiple spaced sealing pieces, and a pressure sleeve is fitted between the sealing pieces on the same side. The ends of the male and female heads that are far apart from each other are threaded with a locking nut for pushing the pressure sleeve to squeeze the sealing pieces.

[0013] In this application, during use, the two wires are connected and fixed to the male and female connectors respectively. Then, the male and female connectors are inserted into each other. During insertion, the retaining plate is inserted into the socket, thereby completing the connection between the male and female connectors and the circuit connection. At the same time, the sealing ring keeps the joint sealed. Then, the locking nut is tightened. The locking nut pushes the pressure sleeve to squeeze the sealing plate, causing the sealing plate to close and thus sealing the end. Finally, the guide cover is combined and fixed with bolts. After the guide cover comes into contact with the rubber sleeve, it can guide rainwater or dew, thereby preventing rainwater or dew from flowing along the wire to one end of the locking nut when the wire is placed at an angle, effectively preventing accumulated water from slowly seeping into the male or female connector.

[0014] Beneficial effects: In this utility model, the connector for solar photovoltaic cables, through the sealing ring at the male and female insertion points and the sealing sheet at the end pushed and squeezed by the locking nut, can double block water intrusion from the joint and the end; in addition, with the guide cover in the guide mechanism that is tightly in contact with the rubber sleeve after being combined, it can effectively guide rainwater and dew away from the connector, prevent water from penetrating into the male or female head along the wire, prevent conductive parts from getting damp and short-circuiting, and ensure the long-term stable operation of the connector; In this utility model, the connector for solar photovoltaic cables has a plug-in structure for the male connector plate and the female connector hole, which can quickly achieve mechanical connection and circuit connection. The guide shield can be flexibly adjusted in position by rotating around the fixed column through the mounting rod. After being combined, it is firmly fixed with the help of the fixing block and bolts, and is suitable for different inclined installation scenarios of the wires. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a connector for solar photovoltaic cables proposed in this utility model; Figure 2 This is a schematic diagram of the unfolded structure of the flow guide cover of a connector for solar photovoltaic cables proposed in this utility model; Figure 3 This is an exploded structural diagram of a connector for solar photovoltaic cables proposed in this utility model.

[0016] In the diagram: 1. Wire; 2. Male connector; 3. Female connector; 4. Flow guiding mechanism; 5. Fixing post; 6. Mounting rod; 7. Flow guide cover; 8. Rubber sleeve; 9. Groove; 10. Fixing block; 11. Sealing plate; 12. Pressure sleeve; 13. Locking nut; 14. Clamping plate; 15. Insertion hole; 16. Sealing ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] In one embodiment: Refer to Figures 1-3 A connector includes a male connector 2 and a female connector 3 for fixing two wire segments 1. Each end of the male connector 2 and the female connector 3, located away from each other, is provided with a current-guiding mechanism 4. The function of the current-guiding mechanism 4 is to guide dew or rainwater that may come into contact with the connector during use, preventing moisture from affecting the internal structure of the connector. During assembly, the two wire segments 1 must be stably connected and fixed to the male connector 2 and the female connector 3 respectively. A crimping method is used to ensure that the metal core of the wire segment 1 is in close contact with the conductive terminals inside the male connector 2 and the female connector 3, ensuring stable current transmission and laying the foundation for the normal operation of the subsequent photovoltaic system.

[0019] The flow guiding mechanism 4 includes a rubber sleeve 8 and two symmetrically arranged flow guiding components. Each flow guiding component includes two fixing posts 5, which are fixed to both sides of the male connector 2 or the female connector 3. The fixing method can be welding or integral molding to ensure the stability of the connection between the fixing posts 5 and the male connector 2 or female connector 3 and to prevent loosening during use. Mounting rods 6 are rotatably connected to the circumference of each of the two fixing posts 5. The mounting rods 6 can rotate freely around the axis of the fixing posts 5. A flow guiding cover 7 is fixedly connected between the mounting rods 6. Therefore, rotating the mounting rods 6 will drive the flow guiding cover 7 to rotate synchronously, facilitating subsequent adjustment of the position of the flow guiding cover 7. The rubber sleeve 8 is fitted around the circumference of the wire 1, and the inner wall of the rubber sleeve 8 is tightly fitted to the outer wall of the wire 1 without gaps. This prevents moisture from flowing through the gaps between the rubber sleeve 8 and the wire 1, ensuring the guiding effect.

[0020] This application can be used in the field of solar photovoltaic cable connection, or in other fields applicable to this application.

[0021] In another embodiment: Reference Figures 1-3 A connector for solar photovoltaic cables is disclosed, applicable to the field of solar photovoltaic cable connections. The male connector 2 has two integrally formed retaining plates 14 at one end, each with a stepped protrusion on one side. The corresponding female connector 3 has two integrally formed through-holes 15 at one end. When connecting two wire segments 1, the male connector 2 and female connector 3 are aligned and inserted. The two retaining plates 14 on the male connector 2 are inserted into the two through-holes 15 on the female connector 3. The stepped protrusions on the retaining plates 14 engage with the inner walls of the through-holes 15, thus completing both the mechanical connection between the male connector 2 and female connector 3 and the electrical connection between the two wire segments 1. Simultaneously, a sealing ring 16 is fitted around the circumference of the male connector 2. The sealing ring 16 is made of elastic rubber. After the male connector 2 and female connector 3 are inserted, the sealing ring 16 is pressed against the joint between the two connectors, filling the gap and providing good waterproofing to prevent external moisture from seeping into the interior through the joint.

[0022] Both the male connector 2 and the female connector 3 have multiple spaced sealing plates 11 integrally formed at their far ends. A pressure sleeve 12 is fitted between the sealing plates 11 on the same side. The pressure sleeve 12 has an annular structure, and its inner wall can fit against the outer wall of the sealing plate 11. Both the male connector 2 and the female connector 3 also have a threaded locking nut 13 at their far ends. After the male connector 2 and the female connector 3 are inserted, the locking nut 13 is tightened. Driven by the threads, the locking nut 13 moves towards the sealing plates 11, pushing the pressure sleeve 12. The pressure sleeve 12, under this thrust, compresses the sealing plates 11, causing the originally spaced sealing plates 11 to gradually converge towards the center, ultimately tightly wrapping around the outside of the wire 1, thus forming a seal at the end of the connector and further preventing moisture or dust from entering the male connector 2 and the female connector 3.

[0023] The deflector 7 is flared, with its larger opening facing the male connector 2. This design expands the water-receiving area and facilitates the guidance of water away from the male connector 2 and the female connector 3. When the two deflectors 7 are joined together by rotating the mounting rod 6, they form a complete cover for guiding dew or rainwater, with one end of this complete cover contacting the rubber sleeve 8. To improve the tightness of the fit between the deflector 7 and the rubber sleeve 8, an annular groove 9 is provided on the circumference of the rubber sleeve 8. When the deflector 7 is joined, its end closest to the rubber sleeve 8 is located within the groove 9 and abuts against the inner wall of the groove 9. This fit effectively prevents water from leaking through the contact point between the deflector 7 and the rubber sleeve 8, further enhancing the waterproof guiding effect. In addition, one end of the rubber sleeve 8 is tapered, with the smaller diameter end facing away from the deflector 7. The tapered structure further assists in guiding water away from the connector, reducing water retention on the surface of the rubber sleeve 8.

[0024] Both sides of the two opposing flow guides 7 are fixedly connected with protruding fixing blocks 10. When the two flow guides 7 are put into place, the two adjacent fixing blocks 10 will be aligned with each other. At this time, the bolts are passed through the aligned fixing blocks 10 and the nuts are tightened at the other end of the bolts to firmly fix the two flow guides 7, preventing them from separating due to external forces such as wind and vibration during use, and ensuring that the flow guide mechanism 4 plays a stable role in the long term.

[0025] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A connector for solar photovoltaic cables, comprising a male connector (2) and a female connector (3) for fixing two sections of conductors (1), characterized in that, Both the male head (2) and the female head (3) are provided with a flow guiding mechanism (4) at their far ends to guide dew or rainwater; The flow guiding mechanism (4) includes a rubber sleeve (8) and symmetrically arranged flow guiding components. The flow guiding components include multiple fixed posts (5), which are respectively fixed on both sides of the male head (2) or the female head (3). The circumference of each of the multiple fixed posts (5) is rotatably connected to an installation rod (6). A flow guiding cover (7) is fixedly connected between the installation rods (6). The rubber sleeve (8) is fitted around the circumference of the wire (1), and its inner wall is in contact with the wire (1). The multiple flow guiding covers (7) are combined and abut against the rubber sleeve (8) to form a complete cover for guiding dew or rainwater.

2. The connector for a solar photovoltaic cable according to claim 1, characterized in that, The fairing (7) is horn-shaped with a larger opening facing the male head (2).

3. A connector for solar photovoltaic cables according to claim 2, characterized in that, The rubber sleeve (8) has an annular groove (9) around its circumference. When the flow guide (7) is closed, one end is located in the groove (9) and abuts against the groove (9).

4. A connector for solar photovoltaic cables according to claim 3, characterized in that, One end of the rubber sleeve (8) is tapered and the smaller diameter end faces away from the end of the guide shield (7).

5. A connector for solar photovoltaic cables according to any one of claims 1-4, characterized in that, Both sides of the two opposing fairings (7) are fixedly connected with protruding fixing blocks (10), and the two adjacent fixing blocks (10) are fixed together by bolts.

6. A connector for solar photovoltaic cables according to claim 1, characterized in that, The male head (2) has two integrally formed retaining plates (14) at one end, and each retaining plate (14) has a stepped protrusion on one side. The female head (3) has two integrally formed through holes (15) at one end, and the retaining plates (14) are respectively inserted into the holes (15).

7. A connector for solar photovoltaic cables according to claim 6, characterized in that, The male connector (2) is circumferentially fitted with a sealing ring (16), which serves to waterproof the male connector (2) and the female connector (3) when they are inserted together.

8. A connector for solar photovoltaic cables according to claim 6, characterized in that, The male head (2) and the female head (3) are each integrally formed with multiple spaced sealing pieces (11) at their far ends. A pressure sleeve (12) is fitted between the sealing pieces (11) on the same side. The male head (2) and the female head (3) are each threaded with a locking nut (13) to push the pressure sleeve (12) to squeeze the sealing pieces (11).

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