Photovoltaic wire harness assembly

Abstract

The utility model belongs to the technical field of photovoltaic wire harnesses, and particularly relates to a photovoltaic wire harness assembly which comprises a wire harness body and a main plug arranged at one end of the wire harness body, a connector is arranged at the other end of the wire harness body, a first connecting shell is installed on the connector, one end of the first connecting shell is connected with a connecting block, and the other end of the first connecting shell is connected with a second connecting shell. A limiting groove is formed in the connecting block, a second connecting shell is arranged on the connecting block, a hole is formed in the second connecting shell, a limiting rod is installed in the hole, and a spring is arranged on the limiting rod. According to the utility model, the connection stability of the photovoltaic wire harness and the photovoltaic panel is improved by installing the connection shell, the connection block penetrates into the connection groove, so that the connection head is connected with the photovoltaic panel, and after the connection is completed, the spring releases the elastic force to reset and pushes the limiting rod to enter the limiting groove at the same time; the connection part of the photovoltaic wire harness and the photovoltaic panel is fixed, connection loosening is avoided, and the connection stability of the photovoltaic wire harness and the photovoltaic panel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic wiring harnesses, in particular to a photovoltaic wiring harness assembly. Background Art

[0002] Photovoltaic wiring harness components are electrical connection components designed specifically for solar photovoltaic systems. Photovoltaic wiring harness components are responsible for connecting multiple solar cells in photovoltaic modules in series and transmitting electrical energy to the inverter or grid.

[0003] Patent document CN208571125U discloses a photovoltaic wiring harness assembly, "One end of photovoltaic cable I is connected to the solar negative connector I, and the other end is connected to one end of the injection-molded connector I containing a fuse; one end of photovoltaic cable II is connected to the solar negative connector II, and the other end is connected to one end of the injection-molded connector II containing a fuse; one end of photovoltaic cable III is connected to the other end of the injection-molded connector I containing a fuse, one end of photovoltaic cable IV is connected to the other end of the injection-molded connector II containing a fuse, the other ends of photovoltaic cables III and IV are connected to one end of photovoltaic cable V through a wiring harness busbar, and the other end of photovoltaic cable V is connected to the solar positive connector. A fuse is installed on the photovoltaic cable. It replaces the built-in fuse in the junction box, greatly saving costs and meeting user requirements. The wiring harness junction connector adopts an injection-molded insulation layer made of a material with high water immersion insulation resistance. It is inexpensive, simple to process, and meets electrical performance requirements. However, the photovoltaic wiring harness assembly in the above-mentioned public document mainly considers installing a fuse on the photovoltaic cable to replace the built-in fuse in the junction box, saving costs, but does not consider that the connection between the photovoltaic wiring harness and the photovoltaic panel is exposed to the outdoors for a long time. During long-term work, the connection between the photovoltaic wiring harness and the photovoltaic panel will inevitably be affected by bad weather, resulting in unstable connection and connection failure between the photovoltaic wiring harness and the photovoltaic panel. Therefore, it is necessary to develop a photovoltaic wiring harness assembly to improve the connection stability between the photovoltaic wiring harness and the photovoltaic panel. Utility Model Content

[0004] The purpose of the present utility model is to provide a photovoltaic wiring harness assembly to solve the technical problem raised in the above background technology that the harsh natural environment may cause unstable connection between the photovoltaic wiring harness and the photovoltaic panel.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a photovoltaic wiring harness assembly, comprising a wiring harness body and a main plug arranged at one end of the wiring harness body, the other end of the wiring harness body being provided with a connector, a No. 1 connecting shell being fixedly installed on the connector, and one end of the connector being passed through the interior of the No. 1 connecting shell, one end of the No. 1 connecting shell being fixedly connected to a connecting block, a limiting groove being symmetrically provided on the connecting block, a No. 2 connecting shell being provided on the connecting block, a connecting groove being provided on the No. 2 connecting shell, and the connecting block being passed through the connecting groove and connected with the No. 2 connecting shell, a hole being symmetrically provided on the No. 2 connecting shell, and one end of the hole extending into the interior of the connecting groove, a limiting rod being movably installed in the hole, and one end of the limiting rod passing through the interior of the hole and passing through the limiting groove, a spring being arranged around the limiting rod, and the spring being located at one end inside the No. 2 connecting shell and fixedly connected to the inner wall of the No. 2 connecting shell, a sealing assembly being provided on one end of the No. 1 connecting shell.

[0006] Preferably, a baffle is fixedly mounted on the limiting rod, and the other end of the spring is fixedly connected to the baffle.

[0007] Preferably, the sealing assembly includes a sealing ring and a groove, the sealing ring is fixed around one end of the No. 1 connecting shell, the groove is arranged around one end of the No. 2 connecting shell, and the sealing ring is engaged with the groove.

[0008] Preferably, an anti-aging layer is provided on the wiring harness body, and the anti-aging layer is made of methyl vinyl silicone rubber.

[0009] Preferably, a reinforcement tube is provided on the wiring harness body, and the reinforcement tube is made of polypropylene and nylon materials. The reinforcement tube is arranged inside the anti-aging layer and connected to the wiring harness body.

[0010] Preferably, a waterproof layer is provided on the reinforcement tube, and the waterproof layer is made of polyurethane. The waterproof layer is provided inside the anti-aging layer and is connected to the reinforcement tube.

[0011] Preferably, a mounting plate is provided around the other end of the second connecting shell, and the mounting plate is used to fix the second connecting shell on the photovoltaic panel.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model is convenient for improving the connection stability of the photovoltaic harness and the photovoltaic panel by installing a No. 1 connecting shell and a No. 2 connecting shell. First, the No. 2 connecting shell is fixed to the outside of the socket of the photovoltaic panel through the mounting plate, and then the connecting block is inserted into the connecting groove to connect the connector with the socket on the photovoltaic panel. At the same time, when the two are connected, the connecting block will push the limit rod to move outward through the spring. When the two are connected, the limit groove will move to the limit rod. The spring releases the elastic force and resets while pushing the limit rod into the limit groove to fix the connection between the photovoltaic harness and the photovoltaic panel to avoid loosening of the connection. At the same time, when the No. 1 connecting shell and the No. 2 connecting shell are in contact, the space inside the No. 1 connecting shell and the No. 2 connecting shell is formed into a closed space through the sealing component, which effectively reduces the impact of rainwater on the connection and improves the connection stability and sustainability of the photovoltaic harness and the photovoltaic panel.

[0014] 2. The utility model effectively improves the service life of the photovoltaic harness by providing an anti-aging layer. The methyl vinyl silicone rubber material is copolymerized by dimethylsiloxane and a small amount of methylvinylsiloxane. It has excellent high and low temperature resistance and resistance to ozone aging, light aging and weather aging. It effectively blocks the aging of the photovoltaic harness caused by environmental factors, protects the photovoltaic harness exposed to the outdoors for a long time from the influence of environmental factors, and improves the service life of the photovoltaic harness. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the connection structure between the No. 1 connecting shell and the No. 2 connecting shell of the present invention;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the No. 2 connecting shell of the present utility model;

[0018] Figure 4 for Figure 3 A magnified schematic diagram of the structure A in the middle;

[0019] Figure 5 This is a schematic diagram of the internal structure of the wiring harness body of the present utility model.

[0020] In the figure: 1. Wire harness body; 2. Main plug; 3. Connector; 4. No. 1 connecting shell; 5. Connecting block; 6. No. 2 connecting shell; 7. Connecting groove; 8. Limit rod; 9. Hole; 10. Spring; 11. Baffle; 12. Limit groove; 13. Groove; 14. Sealing ring; 15. Reinforcement tube; 16. Waterproof layer; 17. Anti-aging layer; 18. Mounting plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1 - Figure 4A photovoltaic wiring harness assembly includes a wiring harness body 1 and a main plug 2 provided at one end of the wiring harness body 1. A connector 3 is provided at the other end of the wiring harness body 1. A No. 1 connection shell 4 is fixedly installed on the connector 3, and one end of the connector 3 is passed through the interior of the No. 1 connection shell 4. One end of the No. 1 connection shell 4 is fixedly connected to a connection block 5. A limiting groove 12 is symmetrically provided on the connection block 5. A No. 2 connection shell 6 is provided on the connection block 5. A connection groove 7 is provided on the No. 2 connection shell 6. The connection block 5 is passed through the connection groove 7 and connected to the No. 2 connection shell 6. A hole 9 is symmetrically provided on the No. 2 connection shell 6, and one end of the hole 9 extends to the interior of the connection groove 7. A limit rod 8 is movably installed in the hole 9, and one end of the limit rod 8 passes through the interior of the hole 9 and is arranged in the limit groove 12. A spring 10 is arranged around the limit rod 8, and the spring 10 is located inside the No. 2 connecting shell 6 and is fixedly connected to the inner wall of the No. 2 connecting shell 6 at one end. A mounting plate 18 is arranged around the other end of the No. 2 connecting shell 6, and the mounting plate 18 is used to fix the No. 2 connecting shell 6 on the photovoltaic panel. A sealing component is provided on one end of the No. 1 connecting shell 4. The photovoltaic wiring harness is an electrical connection component designed for the photovoltaic system. First, connect the connector 3 to the socket of the photovoltaic panel, and then connect the main plug 2 to the inverter or the power grid. , the electricity generated by the photovoltaic panel is transmitted to the inverter or the power grid through the photovoltaic harness, but the connection between the photovoltaic harness and the photovoltaic panel is exposed to the outdoors for a long time. During long-term work, the connection between the photovoltaic harness and the photovoltaic panel is inevitably affected by bad weather, resulting in unstable connection and connection failure between the photovoltaic harness and the photovoltaic panel. When it is necessary to improve the connection stability between the photovoltaic harness and the photovoltaic panel, the connection stability between the photovoltaic harness and the photovoltaic panel is improved by installing a No. 1 connection shell 4 and a No. 2 connection shell 6. First, fix the No. 2 connection shell 6 to the outside of the socket of the photovoltaic panel through the mounting plate 18, and then insert the connecting block 5 into the connecting groove 7, so that the connector 3 is connected The sockets on the photovoltaic panel are connected, and when the two are connected, the connecting block 5 will push the limit rod 8 outward through the spring 10. When the two are connected, the limit groove 12 will move to the limit rod 8. The spring 10 releases the elastic force to reset and pushes the limit rod 8 into the limit groove 12 to fix the connection between the photovoltaic harness and the photovoltaic panel to avoid loosening of the connection. At the same time, when the No. 1 connecting shell 4 and the No. 2 connecting shell 6 are in contact, the space inside the No. 1 connecting shell 4 and the No. 2 connecting shell 6 is formed into a closed space through the sealing component, which effectively reduces the impact of rainwater on the connection and improves the stability and continuity of the connection between the photovoltaic harness and the photovoltaic panel.

[0023] See also Figure 4 A baffle 11 is fixedly mounted on the limit rod 8, and the other end of the spring 10 is fixedly connected to the baffle 11. The diameter of the baffle 11 is larger than the diameter of the hole 9. The baffle 11 is used to limit the limit rod 8 while also providing support for the spring 10.

[0024] See also Figure 2 The sealing assembly includes a sealing ring 14 and a groove 13. The sealing ring 14 is fixed around one end of the No. 1 connecting shell 4, and the groove 13 is arranged around one end of the No. 2 connecting shell 6, and the sealing ring 14 is engaged with the groove 13. When the No. 1 connecting shell 4 and the No. 2 connecting shell 6 are in contact, the sealing ring 14 will be snapped into the groove 13, so that the space inside the No. 1 connecting shell 4 and the No. 2 connecting shell 6 forms a closed space, effectively blocking the influence of rainwater on the connection, and ensuring the stable connection between the photovoltaic harness and the photovoltaic panel.

[0025] See also Figure 4 An anti-aging layer 17 is provided on the harness body 1, and the anti-aging layer 17 is made of methyl vinyl silicone rubber. When it is necessary to improve the service life of the photovoltaic harness, the service life of the photovoltaic harness can be effectively improved by installing the anti-aging layer 17. The methyl vinyl silicone rubber material is copolymerized by dimethylsiloxane and a small amount of methylvinylsiloxane, and has excellent high and low temperature resistance and resistance to ozone aging, light aging and weather aging. It effectively blocks the aging of the photovoltaic harness caused by environmental factors, protects the photovoltaic harness exposed to the outdoors for a long time from the influence of environmental factors, and improves the service life of the photovoltaic harness.

[0026] See also Figure 4 A reinforcing tube 15 is provided on the wiring harness body 1, and the reinforcing tube 15 is made of polypropylene and nylon materials. The reinforcing tube 15 is arranged inside the anti-aging layer 17 and is connected to the wiring harness body 1. A waterproof layer 16 is provided on the reinforcing tube 15, and the waterproof layer 16 is made of polyurethane. The waterproof layer 16 is arranged inside the anti-aging layer 17 and is connected to the reinforcing tube 15. The reinforcing tube 15 made of polypropylene and nylon materials has good flexibility and durability, and can further effectively protect the photovoltaic wiring harness from force and electrical influences. The waterproof layer 16 formed by the polyurethane material can form a protective film on the photovoltaic wiring harness, effectively blocking moisture from invading the interior of the photovoltaic wiring harness, and effectively providing protection for the photovoltaic wiring harness.

[0027] Working principle: when it is necessary to improve the connection stability between the photovoltaic harness and the photovoltaic panel, the connection stability between the photovoltaic harness and the photovoltaic panel can be improved by installing the No. 1 connection shell 4 and the No. 2 connection shell 6. First, fix the No. 2 connection shell 6 to the outside of the socket of the photovoltaic panel through the mounting plate 18, and then insert the connecting block 5 into the connecting groove 7 to connect the connector 3 with the socket on the photovoltaic panel. At the same time, when the two are connected, the connecting block 5 will push the limit rod 8 to move outward through the spring 10. When the two are connected, the limit groove 12 will move to the limit rod 8. The spring 10 releases the elastic force to reset and pushes the limit rod 8 into the limit groove 12 to fix the connection between the photovoltaic harness and the photovoltaic panel to avoid loosening of the connection. At the same time, the No. 1 connection shell 4 and the No. 2 connection shell 6 are fixed to the outside of the socket of the photovoltaic panel through the mounting plate 18. Then, the connecting block 5 is inserted into the connecting groove 7 to connect the connector 3 with the socket on the photovoltaic panel. At the same time, when the two are connected, the connecting block 5 will push the limit rod 8 to move outward through the spring 10. When the two are connected, the limit groove 12 will move to the limit rod 8. The spring 10 releases the elastic force to reset and pushes the limit rod 8 into the limit groove 12 to fix the connection between the photovoltaic harness and the photovoltaic panel to avoid loosening of the connection. When the No. 1 connecting shells 6 are in contact, the space inside the No. 1 connecting shell 4 and the No. 2 connecting shell 6 forms a closed space through the sealing component, which effectively reduces the impact of rainwater on the connection and improves the connection stability and continuity between the photovoltaic harness and the photovoltaic panel. When it is necessary to increase the service life of the photovoltaic harness, the service life of the photovoltaic harness is effectively improved by installing an anti-aging layer 17. The methyl vinyl silicone rubber material is copolymerized by dimethylsiloxane and a small amount of methylvinylsiloxane, and has excellent high and low temperature resistance and resistance to ozone aging, light aging and weather aging. It effectively blocks the aging of the photovoltaic harness caused by environmental factors, protects the photovoltaic harness exposed to the outdoors for a long time from the influence of environmental factors, and increases the service life of the photovoltaic harness.

[0028] It will be apparent 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 characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A photovoltaic wiring harness assembly, comprising a wiring harness body (1) and a main plug (2) arranged at one end of the wiring harness body (1), and a connector (3) arranged at the other end of the wiring harness body (1), characterized in that: A No. 1 connection shell (4) is fixedly mounted on the connection head (3), and one end of the connection head (3) is inserted into the interior of the No. 1 connection shell (4). One end of the No. 1 connection shell (4) is fixedly connected to a connection block (5). A limiting groove (12) is symmetrically provided on the connection block (5). A No. 2 connection shell (6) is provided on the connection block (5). A connection groove (7) is provided on the No. 2 connection shell (6). The connection block (5) is inserted into the connection groove (7) and is connected to the No. 2 connection shell (6). The connecting shell (6) is symmetrically provided with holes (9), and one end of the hole (9) extends to the interior of the connecting groove (7). A limiting rod (8) is movably installed in the hole (9), and one end of the limiting rod (8) passes through the interior of the hole (9) and is arranged in the limiting groove (12). A spring (10) is arranged around the limiting rod (8), and one end of the spring (10) is located inside the second connecting shell (6) and is fixedly connected to the inner wall of the second connecting shell (6). A sealing component is provided on the first connecting shell (4).

2. A photovoltaic wiring harness assembly according to claim 1, characterized in that: A baffle (11) is fixedly mounted on the limiting rod (8), and the other end of the spring (10) is fixedly connected to the baffle (11).

3. The photovoltaic wiring harness assembly according to claim 1, characterized in that: The sealing assembly comprises a sealing ring (14) and a groove (13), wherein the sealing ring (14) is fixed around one end of the No. 1 connecting shell (4), and the groove (13) is arranged around one end of the No. 2 connecting shell (6), and the sealing ring (14) is engaged with the groove (13).

4. The photovoltaic wiring harness assembly according to claim 1, characterized in that: An anti-aging layer (17) is provided on the wiring harness body (1), and the anti-aging layer (17) is made of methyl vinyl silicone rubber.

5. The photovoltaic wiring harness assembly according to claim 1, characterized in that: The wiring harness body (1) is provided with a reinforcing tube (15), and the reinforcing tube (15) is made of polypropylene and nylon materials. The reinforcing tube (15) is arranged inside the anti-aging layer (17) and connected to the wiring harness body (1).

6. A photovoltaic wiring harness assembly according to claim 5, characterized in that: The reinforcement tube (15) is provided with a waterproof layer (16), and the waterproof layer (16) is made of polyurethane. The waterproof layer (16) is provided inside the anti-aging layer (17) and is connected to the reinforcement tube (15).

7. The photovoltaic wiring harness assembly according to claim 1, characterized in that: A mounting plate (18) is provided around the other end of the second connecting shell (6), and the mounting plate (18) is used to fix the second connecting shell (6) on the photovoltaic panel.

Images