Photovoltaic branch cable

Abstract

The utility model discloses a photovoltaic branch cable which comprises an upper branch box, a lower branch box is movably installed at the bottom end of the upper branch box, large connectors are fixedly installed at one end of the upper branch box and one end of the lower branch box, and small connectors are fixedly installed at the other end of the upper branch box and the other end of the lower branch box. The inner side of the upper branch box and the inner side of the lower branch box are each provided with a cable storage groove, a circular tube crimping end is movably installed in each cable storage groove, a C-shaped crimping end is fixedly installed at one end of each circular tube crimping end, and a C-shaped opening is formed in one side of each C-shaped crimping end. According to the utility model, the branch cable conductor is inserted into the circular tube crimping end, and the C-shaped crimping end is in lap joint with the outer surface of the main cable conductor, so that conductor connection of the main cable conductor and the branch cable conductor is completed, a branch main cable does not need to be disconnected, and the reliable requirement of connection of the branch main cable and a branch branch cable is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cables, in particular to a photovoltaic branch cable. Background Art

[0002] In the existing technology, if domestic photovoltaic cables need to be branched, they are generally installed in a branch box. The main line enters the branch box, and the branch line core is led out from the branch box. This method requires on-site operation, and the installation is cumbersome and unreliable. The branch box itself is not waterproof or moisture-proof, and there is a risk of short circuit when exposed to water.

[0003] When connecting the existing photovoltaic branch cable to the photovoltaic main cable, it is usually necessary to disconnect the main cable conductor and then connect the main line conductor to the branch line conductor, which can easily lead to unstable connection and complicated operation. Therefore, it does not meet the existing needs. We have proposed a photovoltaic branch cable. Utility Model Content

[0004] The purpose of the utility model is to provide a photovoltaic branch cable to solve the problems proposed in the above-mentioned background technology that when the photovoltaic branch cable is connected to the photovoltaic main cable, it is usually necessary to disconnect the main cable conductor and then connect the main line conductor with the branch line conductor, which easily leads to unstable connection and complicated operation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic branch cable, comprising an upper branch box, a lower branch box is movably installed at the bottom end of the upper branch box, a large connector is fixedly installed at one end of the upper branch box and the lower branch box, a small connector is fixedly installed at the other end of the upper branch box and the lower branch box, a cable receiving groove is provided on the inner side of the upper branch box and the lower branch box, a round tube crimping end is movably installed inside the cable receiving groove, a C-type crimping end is fixedly installed at one end of the round tube crimping end, a C-type opening is provided on one side of the C-type crimping end, a T-bar is fixedly installed on one side of the outer surface of the round tube crimping end, a T-type outer groove is provided inside the cable receiving groove, a T-type inner groove is provided on one side of the T-type outer groove, the T-bar is slid into the inside of the T-type inner groove through the T-type outer groove, and a branch main cable and a branch branch cable are provided inside the cable receiving groove.

[0006] Preferably, the large connector is provided with two sealing sleeve cavities, the small connector is provided with a sealing sleeve cavity, one end of the branch main cable is movably inserted into the sealing sleeve cavity inside the small connector, the other end of the branch main cable is movably inserted into one of the sealing sleeve cavities inside the large connector, and one end of the branch branch cable is movably inserted into the other sealing sleeve cavity inside the large connector.

[0007] Preferably, the outer surfaces of the branch main cable and the branch branch cable are both provided with cable sheaths, the interior of the branch main cable is provided with a main cable conductor, the interior of the branch branch cable is provided with a branch cable conductor, the outer surfaces of the main cable conductor and the branch cable conductor are both provided with photovoltaic cable insulation, the branch cable conductor is movably inserted into the interior of the round tube crimping end, and the main cable conductor is movably inserted into the interior of the C-shaped crimping end opening.

[0008] Preferably, a sealing sleeve is movably installed inside the sealing sleeve cavity, and the branch main cable and the branch branch cable are movably inserted into the interior of the sealing sleeve.

[0009] Preferably, sealing ribs are provided inside the upper branch box and the lower branch box, and a plurality of threaded holes are provided on the surfaces of the large connector and the small connector.

[0010] Preferably, the photovoltaic cable insulation is made of cross-linked polyolefin, and the cable sheath is made of halogen-free flame-retardant polyolefin.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model cooperates with the round tube crimping end and the C-type crimping end, so that when the device connects the main cable conductor and the branch cable conductor, the branch cable conductor can be inserted into the inside of the round tube crimping end, and the C-type crimping end is overlapped on the outer surface of the main cable conductor, thereby completing the conductor connection between the main cable conductor and the branch cable conductor, so that the branch main cable does not need to be disconnected, ensuring the reliable connection requirements of the branch main cable and the branch branch cable;

[0013] 2. The utility model cooperates with the sealing sleeve and the sealing ribs, so that when the device is in use, the sealing sleeve and the sealing ribs can seal the inside of the cable storage groove, so that the device has excellent waterproof and moisture-proof performance;

[0014] 3. The utility model cooperates with the T-shaped rod, the T-shaped outer groove and the T-shaped inner groove so that when installing the round tube crimping end, the T-shaped rod can be placed inside the T-shaped outer groove, and then the round tube crimping end can be slid toward the direction of the T-shaped inner groove, so as to fix the angle of the round tube crimping end, thereby avoiding the situation where the main cable conductor and the branch cable conductor are disconnected due to the shaking of the round tube crimping end in the cable storage groove, and the position of the round tube crimping end can be adjusted by sliding inside the T-shaped inner groove, so as to facilitate the connection operation of the main cable conductor and the branch cable conductor of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the explosion structure of the utility model as a whole;

[0016] Figure 2 It is a cross-sectional top view of the utility model as a whole;

[0017] Figure 3 It is a cross-sectional top view explosion schematic diagram of the utility model as a whole;

[0018] Figure 4 It is a sectional side view of the utility model as a whole.

[0019] In the figure: 1. Upper branch box; 2. Lower branch box; 3. Large connector; 4. Threaded hole; 5. Sealing sleeve cavity; 6. Sealing sleeve; 7. T-bar; 8. Cable storage groove; 9. T-shaped outer groove; 10. T-shaped inner groove; 11. Branch main cable; 12. Branch branch cable; 13. Main cable conductor; 14. Branch cable conductor; 15. Round tube crimping end; 16. C-type crimping end; 17. Cable sheath; 18. Photovoltaic cable insulation; 19. Sealing rib; 20. Small connector. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figures 1 to 4 The utility model provides an embodiment: a photovoltaic branch cable, comprising an upper branch box 1, a lower branch box 2 is movably installed at the bottom end of the upper branch box 1, a large connector 3 is fixedly installed at one end of the upper branch box 1 and the lower branch box 2, and a small connector 20 is fixedly installed at the other end of the upper branch box 1 and the lower branch box 2. A cable storage groove 8 is provided on the inner side of the upper branch box 1 and the lower branch box 2. A round tube crimping end 15 is movably installed inside the cable storage groove 8, a C-type crimping end 16 is fixedly installed at one end of the round tube crimping end 15, a C-type opening is provided on one side of the C-type crimping end 16, a T-shaped rod 7 is fixedly installed on one side of the outer surface of the round tube crimping end 15, a T-shaped outer groove 9 is provided inside the cable storage groove 8, a T-shaped inner groove 10 is provided on one side of the T-shaped outer groove 9, and the T-shaped rod 7 is slidably inserted into the inside of the T-shaped inner groove 10 through the T-shaped outer groove 9, and a branch main cable 11 and a branch branch cable 12 are provided inside the cable storage groove 8. Through the cooperation of the T-shaped rod 7, the T-shaped outer groove 9 and the T-shaped inner groove 10, when installing the round tube crimping end 15, the T-shaped rod 7 can be placed inside the T-shaped outer groove 9, and then the round tube crimping end 15 can be slid toward the direction of the T-shaped inner groove 10, so as to fix the angle of the round tube crimping end 15, so as to avoid the situation where the main cable conductor 13 and the branch cable conductor 14 are disconnected due to the shaking of the round tube crimping end 15 in the cable storage groove 8, and the position of the round tube crimping end 15 can be adjusted by sliding inside the T-shaped inner groove 10, so as to facilitate the connection operation of the main cable conductor 13 and the branch cable conductor 14 of different lengths.

[0022] Two sealing sleeve cavities 5 are provided inside the large connector 3, and one sealing sleeve cavity 5 is provided inside the small connector 20. One end of the branch main cable 11 is movably inserted into the sealing sleeve cavity 5 inside the small connector 20, and the other end of the branch main cable 11 is movably inserted into one of the sealing sleeve cavities 5 inside the large connector 3. One end of the branch branch cable 12 is movably inserted into another sealing sleeve cavity 5 inside the large connector 3. Through the cooperation of the sealing sleeve 6 and the sealing rib 19, when the device is in use, the sealing sleeve 6 and the sealing rib 19 can be used to seal the interior of the cable storage groove 8, so that the device has excellent waterproof and moisture-proof properties.

[0023] The outer surfaces of the branch main cable 11 and the branch branch cable 12 are both provided with a cable sheath 17, the interior of the branch main cable 11 is provided with a main cable conductor 13, the interior of the branch branch cable 12 is provided with a branch cable conductor 14, the outer surfaces of the main cable conductor 13 and the branch cable conductor 14 are both provided with photovoltaic cable insulation 18, the branch cable conductor 14 is movably inserted into the interior of the round tube crimping end 15, and the main cable conductor 13 is movably inserted into the interior of the opening of the C-type crimping end 16.

[0024] Through the cooperation of the round tube crimping end 15 and the C-type crimping end 16, when the device connects the main cable conductor 13 and the branch cable conductor 14, the branch cable conductor 14 can be inserted into the inside of the round tube crimping end 15, and the C-type crimping end 16 can be overlapped on the outer surface of the main cable conductor 13, thereby completing the conductor connection between the main cable conductor 13 and the branch cable conductor 14, so that the branch main cable 11 does not need to be disconnected, thereby ensuring the reliable connection requirements of the branch main cable 11 and the branch branch cable 12.

[0025] A sealing sleeve 6 is movably installed inside the sealing sleeve cavity 5 , and the branch main cable 11 and the branch branch cable 12 movably penetrate the inside of the sealing sleeve 6 .

[0026] Sealing ribs 19 are provided inside the upper branch box 1 and the lower branch box 2 , and a plurality of threaded holes 4 are provided on the surfaces of the large connector 3 and the small connector 20 .

[0027] The photovoltaic cable insulation 18 is made of cross-linked polyolefin, and the cable sheath 17 is made of halogen-free flame-retardant polyolefin.

[0028] When the photovoltaic branch cable is in use, the upper branch box 1 and the lower branch box 2 are first separated, and the sealing sleeves 6 are installed inside the sealing sleeve cavity 5. Then, the two ends of the branch main cable 11 are respectively placed in the large connector 3 and the small connector 20, so that the two ends of the branch main cable 11 are inserted into the sealing sleeve 6, and then the branch branch cable 12 is placed in another sealing sleeve 6 inside the large connector 3. At this time, the round tube crimping end 15 is sleeved on the surface of the branch cable conductor 14, and the T-shaped rod 7 is inserted into the inside of the T-shaped outer groove 9, and then the round tube crimping end 15 is slid toward the direction of the T-shaped inner groove 10, so that the C-shaped crimping end 16 moves to a position close to the main cable conductor 13, and then the main cable conductor 13 is placed in the C-shaped opening of the C-shaped crimping end 16, thereby completing the conductor connection between the main cable conductor 13 and the branch cable conductor 14, and then the upper branch box 1 and the lower branch box 2 are closed, and the upper branch box 1 and the lower branch box 2 are reinforced by screwing into the threaded hole 4, thereby completing the conductor connection.

[0029] At this time, the interior of the cable receiving groove 8 can be sealed by the sealing sleeve 6 and the sealing rib 19, so that the device has excellent waterproof and moisture-proof properties.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A photovoltaic branch cable, comprising an upper branch box (1), characterized in that: The lower branch box (2) is movably mounted on the bottom end of the upper branch box (1), one end of each of the upper branch box (1) and the lower branch box (2) is fixedly mounted with a large connector (3), and the other end of each of the upper branch box (1) and the lower branch box (2) is fixedly mounted with a small connector (20), the inner sides of each of the upper branch box (1) and the lower branch box (2) are provided with a cable storage groove (8), a round tube crimping end (15) is movably mounted inside the cable storage groove (8), and one end of each of the round tube crimping end (15) is fixedly mounted with a C-shaped A crimping end (16), one side of the C-shaped crimping end (16) is provided with a C-shaped opening, one side of the outer surface of the round tube crimping end (15) is fixedly installed with a T-shaped rod (7), the interior of the cable storage groove (8) is provided with a T-shaped outer groove (9), one side of the T-shaped outer groove (9) is provided with a T-shaped inner groove (10), the T-shaped rod (7) is slidably inserted into the interior of the T-shaped inner groove (10) through the T-shaped outer groove (9), and the interior of the cable storage groove (8) is provided with a branch main cable (11) and a branch branch cable (12).

2. The photovoltaic branch cable according to claim 1, characterized in that: The large connector (3) is provided with two sealing sleeve cavities (5) inside, the small connector (20) is provided with a sealing sleeve cavity (5) inside, one end of the branch main cable (11) is movably inserted into the sealing sleeve cavity (5) inside the small connector (20), the other end of the branch main cable (11) is movably inserted into one of the sealing sleeve cavities (5) inside the large connector (3), and one end of the branch branch cable (12) is movably inserted into the other sealing sleeve cavity (5) inside the large connector (3).

3. The photovoltaic branch cable according to claim 1, characterized in that: The outer surfaces of the branch main cable (11) and the branch branch cable (12) are both provided with a cable sheath (17); the interior of the branch main cable (11) is provided with a main cable conductor (13); the interior of the branch branch cable (12) is provided with a branch cable conductor (14); the outer surfaces of the main cable conductor (13) and the branch cable conductor (14) are both provided with photovoltaic cable insulation (18); the branch cable conductor (14) is movably inserted into the interior of the round tube crimping end (15); and the main cable conductor (13) is movably inserted into the interior of the opening of the C-type crimping end (16).

4. The photovoltaic branch cable according to claim 2, characterized in that: A sealing sleeve (6) is movably installed inside the sealing sleeve cavity (5), and the branch main cable (11) and the branch branch cable (12) are movably inserted into the interior of the sealing sleeve (6).

5. The photovoltaic branch cable according to claim 2, characterized in that: The upper branch box (1) and the lower branch box (2) are provided with sealing ribs (19) inside, and the surfaces of the large connector (3) and the small connector (20) are provided with a plurality of threaded holes (4).

6. The photovoltaic branch cable according to claim 3, characterized in that: The photovoltaic cable insulation (18) is made of cross-linked polyolefin, and the cable sheath (17) is made of halogen-free flame-retardant polyolefin.

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