An electric leakage-proof photovoltaic connector

Abstract

The utility model discloses a photovoltaic connector of anti -electric leakage relates to photovoltaic connector technical field, in the existing technology under the humid environment, moisture is easy along the connector's connecting gap into the connector inside, and the problem of easy to cause the occurrence of electric leakage phenomenon, present and propose the following scheme, including first connector, one end of first connector is inserted with second connector, and one end of first connector is connected with protection assembly with sliding, protection assembly includes first protection shell. The utility model will first connector and second connector carry out the insertion after, will protection assembly to the second connector direction sliding, make two arc -shaped sheets insert into the positioning ring, the insertion of first connector and second connector is sealed and is shielded, then by two clamps arc -shaped sheet extrusion in the sealing groove on the sealing ring, through two arc -shaped sheets of mutual close -up clamps into the sealing groove of sealing ring, form further sealing structure.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic connector technology, and in particular to a photovoltaic connector that prevents leakage. Background Technology

[0002] Photovoltaic modules are equipped with photovoltaic connectors, which are installed at the ends of the positive and negative leads of the photovoltaic modules. These connectors are used for series connection between adjacent photovoltaic modules, thereby enabling power transmission. Because photovoltaic connectors are used in harsh outdoor environments for extended periods, the reliability and safety requirements for these connectors are very high. Existing photovoltaic connectors often experience problems during photovoltaic power plant operation, such as high connection resistance and severe overheating due to loose crimping between the cable and the internal metal pins. Furthermore, photovoltaic connectors frequently experience leakage between the positive and negative terminals and the metal roof due to failure of the outer casing protection level, especially under the influence of rainwater, potentially leading to serious consequences such as fires.

[0003] A search revealed a patent (application number: 202021830260.9) disclosing "a photovoltaic connector with leakage protection." This device employs a closed-loop design at the connection point between the positive and negative pins and the cable. During installation, a crimping tool is used to ensure sufficient contact area between the metal pins and the cable, preventing overheating caused by unreliable open-loop crimping during photovoltaic system operation. The metal pins also feature a drum-shaped design, facilitating reliable connection between the positive and negative pins.

[0004] However, the device has poor sealing performance. In humid environments, moisture can easily enter the connector through the gaps at the connection points, which can easily lead to leakage and result in poor safety of wires or cables, making it impossible to guarantee the normal operation of electronic, electrical and mechanical equipment. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a photovoltaic connector that prevents leakage, which overcomes the shortcomings of the prior art and effectively solves the problem that in the prior art, moisture can easily enter the inside of the connector along the gap at the connection point in a humid environment, which can easily lead to leakage.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A photovoltaic connector with leakage protection includes a first connector, one end of which is inserted into a second connector, and a protective component is slidably connected to one end of the first connector. The protective component includes a first protective shell, a second protective shell disposed below the first protective shell, and arc-shaped pieces welded and fixed to one end of the first and second protective shells respectively. A positioning ring is sleeved and fixed to the outer wall of the second connector, and a sealing component is sleeved and fixed to the outer wall of the second connector on one side of the positioning ring. The sealing component includes a sealing ring and clamping plates inserted into both sides of the outer wall of the sealing ring respectively.

[0008] The first and second protective shells are spliced ​​onto the outer wall of the first connector. After the first and second connectors are inserted, the protective assembly is slid towards the second connector, bringing it closer to the positioning ring. This allows the two arc-shaped pieces to be inserted into the positioning grooves, sealing the joint between the first and second connectors. Then, the two clamping plates are brought closer together on the sealing ring, pressing the arc-shaped pieces into the sealing grooves on the sealing ring. By tightening the bolts and nuts, the two adjacent connecting blocks are brought closer together, which in turn brings the two clamping plates closer together. The two clamping plates, by bringing the two pieces closer together, secure the two arc-shaped pieces into the sealing grooves of the sealing ring, forming a further sealing structure.

[0009] Preferably, the bottom ends of the first protective shell are welded and fixed with inserts, and the top ends of the second protective shell are respectively provided with slots, which are inserted into the inserts.

[0010] By interlocking the plugs and inserts, the first protective shell and the second protective shell are spliced ​​together to form a whole, thereby protecting the first connector.

[0011] Preferably, the arc-shaped sheet is made of rubber and has toughness.

[0012] The protective components are connected to the positioning ring using a flexible, curved plate.

[0013] Preferably, a positioning groove is provided on one side of the outer wall of the positioning ring, and the two arc-shaped pieces are inserted into the positioning groove.

[0014] Slide the protective component to bring it closer to the positioning ring, so that the two arc-shaped pieces can be inserted into the positioning groove to cover the joint between the first connector and the second connector.

[0015] Preferably, the annular outer wall of the sealing ring is provided with a sealing groove, and the sealing groove is inserted into the two clamping plates.

[0016] The two plates form a sealed fit with the sealing ring through the sealing groove.

[0017] Preferably, connecting blocks are welded and fixed at both ends of the arc-shaped outer wall of the card plate, and two adjacent connecting blocks are fastened together by fastening bolts and fastening nuts.

[0018] By tightening the fastening bolts and nuts, the two adjacent connecting blocks are brought closer together, which in turn brings the two clamping plates closer together.

[0019] Preferably, the annular outer wall of the sealing ring abuts against the arcuate inner walls of the two arcuate pieces, and the sealing ring and the arcuate pieces are fastened together by a retaining plate.

[0020] Two curved pieces are inserted into the sealing groove of the sealing ring by two adjacent clamping plates, forming a further sealing structure.

[0021] The beneficial effects of this utility model are as follows:

[0022] After inserting the first and second connectors, the protective component is slid towards the second connector, allowing the two arc-shaped pieces to insert into the positioning ring, thus sealing the joint between the first and second connectors. Then, two clamping plates press the arc-shaped pieces into the sealing grooves on the sealing ring. The two clamping plates, which are close to each other, hold the two arc-shaped pieces into the sealing grooves of the sealing ring, forming a further sealing structure. This effectively solves the problem in the prior art where, in a humid environment, moisture can easily enter the connector through the gaps at the connection point, leading to leakage. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a leakage-proof photovoltaic connector proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the protective component structure of a photovoltaic connector that prevents leakage current, as proposed in this utility model.

[0025] Figure 3 This is a schematic diagram of the second connector structure of a photovoltaic connector for preventing leakage current proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the sealing assembly structure of a photovoltaic connector for preventing leakage current proposed in this utility model.

[0027] In the diagram: 1. First connector; 2. Second connector; 3. Protective assembly; 4. First protective shell; 5. Second protective shell; 6. Insert; 7. Slot; 8. Arc-shaped piece; 9. Positioning ring; 10. Positioning groove; 11. Sealing assembly; 12. Sealing ring; 13. Sealing groove; 14. Clamping plate; 15. Connecting block; 16. Fastening bolt; 17. Fastening nut. Detailed Implementation

[0028] 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.

[0029] Example: Refer to Figure 1-4 A photovoltaic connector with leakage protection includes a first connector 1, a second connector 2 inserted into one end of the first connector 1, a protective component 3 slidably connected to one end of the first connector 1, the protective component 3 including a first protective shell 4, a second protective shell 5 disposed below the first protective shell 4, and arc-shaped pieces 8 respectively welded and fixed to one end of the first protective shell 4 and the second protective shell 5, a positioning ring 9 is sleeved and fixed to the outer wall of the second connector 2, and a sealing component 11 sleeved and fixed to the outer wall of the second connector 2 is provided on one side of the positioning ring 9, the sealing component 11 including a sealing ring 12 and a retaining plate 14 respectively inserted into both sides of the outer wall of the sealing ring 12;

[0030] The bottom ends of the first protective shell 4 are welded and fixed with inserts 6 respectively, and the top ends of the second protective shell 5 are respectively provided with slots 7. The slots 7 and the inserts 6 form a plug-in fit. Through the plug-in 7 and the inserts 6 plugging into each other, the first protective shell 4 and the second protective shell 5 are spliced ​​together to form a whole, thereby protecting the first connector 1. The arc-shaped piece 8 is made of rubber material and has toughness. Through the tough arc-shaped piece 8, the protective component 3 is connected to the positioning ring 9. A positioning groove 10 is provided on one side of the outer wall of the positioning ring 9. The two arc-shaped pieces 8 form a plug-in fit with the positioning groove 10. The protective component 3 is slidable, so that the protective component 3 moves closer to the positioning ring 9, and the two arc-shaped pieces 8 are inserted into the positioning groove 10 to cover the plug-in gap between the first connector 1 and the second connector 2.

[0031] The sealing ring 12 has a sealing groove 13 on its annular outer wall. The sealing groove 13 is inserted into two clamping plates 14. The two clamping plates 14 form a sealing fit with the sealing ring 12 through the sealing groove 13. Connecting blocks 15 are welded and fixed to both ends of the arc-shaped outer wall of the clamping plates 14. Two adjacent connecting blocks 15 are fastened together by fastening bolts 16 and fastening nuts 17. By tightening the fastening bolts 16 and fastening nuts 17, the two adjacent connecting blocks 15 are brought closer together, which in turn brings the two clamping plates 14 closer together. The annular outer wall of the sealing ring 12 abuts against the arc-shaped inner wall of the two arc-shaped pieces 8. The sealing ring 12 and the arc-shaped pieces 8 are fastened together through the clamping plates 14. The two arc-shaped pieces 8 are inserted into the sealing groove 13 of the sealing ring 12 by the two clamping plates 14 that are brought closer together, forming a further sealing structure.

[0032] Working principle:

[0033] In use, the first protective shell 4 and the second protective shell 5 are spliced ​​onto the outer wall of the first connector 1. After the first connector 1 and the second connector 2 are inserted, the protective component 3 is slid toward the second connector 2, so that the protective component 3 moves closer to the positioning ring 9, and the two arc-shaped pieces 8 are inserted into the positioning groove 10 to cover the joint gap between the first connector 1 and the second connector 2. Then, the two clamping plates 14 are brought closer to each other on the sealing ring 12, and the two clamping plates 14 press the arc-shaped pieces 8 into the sealing groove 13 on the sealing ring 12. By tightening the fastening bolts 16 and the fastening nuts 17, the two adjacent connecting blocks 15 are brought closer to each other, and then the two clamping plates 14 are brought closer to each other. The two arc-shaped pieces 8 are inserted into the sealing groove 13 of the sealing ring 12 by the two clamping plates 14 that are brought closer to each other, forming a further sealing structure.

[0034] 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 photovoltaic connector with leakage protection, comprising a first connector (1), characterized in that, One end of the first connector (1) is connected to the second connector (2), and one end of the first connector (1) is slidably connected to the protective component (3). The protective component (3) includes a first protective shell (4), a second protective shell (5) disposed below the first protective shell (4), and an arc-shaped piece (8) welded and fixed to one end of the first protective shell (4) and the second protective shell (5). The outer wall of the second connector (2) is fitted with a positioning ring (9), and one side of the positioning ring (9) is fitted with a sealing component (11) fitted and fixed to the outer wall of the second connector (2). The sealing component (11) includes a sealing ring (12) and a clamping plate (14) inserted into both sides of the outer wall of the sealing ring (12).

2. The photovoltaic connector with leakage protection according to claim 1, characterized in that, The bottom ends of the first protective shell (4) are respectively welded and fixed with inserts (6), and the top ends of the second protective shell (5) are respectively provided with slots (7), and the slots (7) and inserts (6) form a plug-in fit.

3. The photovoltaic connector with leakage protection according to claim 1, characterized in that, The arc-shaped sheet (8) is made of rubber and has toughness.

4. A photovoltaic connector for preventing leakage current according to claim 1, characterized in that, The positioning ring (9) has a positioning groove (10) on one side of its outer wall, and the two arc-shaped pieces (8) are inserted into the positioning groove (10).

5. A photovoltaic connector for preventing leakage current according to claim 1, characterized in that, The sealing ring (12) has a sealing groove (13) on its annular outer wall, and the sealing groove (13) and the two clamping plates (14) are interlocked.

6. A photovoltaic connector for preventing leakage current according to claim 1, characterized in that, The two ends of the arc-shaped outer wall of the card plate (14) are respectively welded and fixed with connecting blocks (15), and two adjacent connecting blocks (15) are fastened together by fastening bolts (16) and fastening nuts (17) connected to each other.

7. A photovoltaic connector for preventing leakage current according to claim 1, characterized in that, The outer annular wall of the sealing ring (12) abuts against the inner arc of the two arc-shaped pieces (8), and the sealing ring (12) and the arc-shaped pieces (8) are fastened together by the clamping plate (14).

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