Photovoltaic connecting device with multiple waterproof structures

Abstract

The utility model relates to the technical field of photovoltaic connection, in particular to a photovoltaic connecting device with multiple waterproof structures, which comprises a male terminal connector, a sliding rod is fixedly connected to the left side of the male terminal connector, a moving ring is slidably connected to the outer side wall of the sliding rod, and a first threaded sleeve is fixedly connected to the left side of the moving ring. A conductive part is arranged in the first threaded sleeve and fixedly connected to the left side of the sliding rod, the outer side wall of the conductive part is sleeved with a plurality of sets of rubber blocks, and female terminal connectors are arranged on the left sides of the rubber blocks. According to the utility model, through the cooperation of the male terminal connector and the moving ring, the interference fit between the rubber block and the butt joint groove is utilized to fill the gap, prevent water from entering and realize primary water prevention; the rubber block is further extruded by the extrusion pad to form axial sealing to form secondary water prevention; the sealing strip is adaptively pressed by the telescopic rod and the spring; loosening caused by abrasion or vibration is compensated, and the waterproof reliability is further improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic connection technology, specifically to a photovoltaic connection device with multiple waterproof structures. Background Technology

[0002] Photovoltaics, or photovoltaic power generation systems, are power generation systems that utilize the photovoltaic effect of semiconductor materials to convert solar radiation energy into electrical energy. The energy for photovoltaic power generation systems comes from inexhaustible solar energy, making it a clean, safe, and renewable energy source. The photovoltaic power generation process does not pollute the environment or damage the ecosystem.

[0003] Photovoltaic power generation systems are divided into stand-alone photovoltaic systems and grid-connected photovoltaic systems. A photovoltaic power generation system consists of solar cell arrays, battery banks, charge / discharge controllers, inverters, AC distribution cabinets, solar tracking control systems, and other equipment. Because photovoltaic power generation systems need to be installed outdoors to receive solar radiation, they are susceptible to damage from rain and snow. The most critical component is the photovoltaic connector; if rainwater enters the connector, it can cause leakage or power outages, leading to damage or malfunction of the photovoltaic system.

[0004] Therefore, it is necessary to invent a photovoltaic connection device with multiple waterproof structures to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a photovoltaic connection device with multiple waterproof structures. By achieving the cooperation between the male terminal connector and the moving ring, it solves the problem in the prior art where rainwater enters the connector, causing the photovoltaic system to be affected by leakage or power failure, resulting in damage or malfunction of the photovoltaic system.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic connection device with multiple waterproof structures, including a male terminal connector, a slide rod fixedly connected to the left side of the male terminal connector, a movable ring slidably connected to the outer wall of the slide rod, a threaded sleeve fixedly connected to the left side of the movable ring, a conductive part provided inside the threaded sleeve and fixedly connected to the left side of the slide rod, several sets of rubber blocks sleeved on the outer wall of the conductive part, a female terminal connector provided on the left side of the rubber blocks, the female terminal connector and the conductive part engaging with each other, several sets of mating grooves opened on the inner side wall of the female terminal connector and the positions of the mating grooves corresponding to the rubber blocks, the initial connection and waterproofing of the male terminal connector and the female terminal connector are achieved through the cooperation of the rubber blocks and the mating grooves.

[0007] Preferably, the inner wall of the female terminal connector has an inner groove, and a compression pad is fixedly connected to the inner wall of the inner groove. The compression pad is located outside the mating groove, and the rubber block is further compressed by the compression pad to make the rubber block fill the gap of the mating groove more evenly.

[0008] Preferably, a limiting block is fixedly connected to the left side of the female terminal connector, and a mounting block is fixedly connected to the left side of the limiting block. The connection between the female terminal connector and external parts is realized through the limiting block and the mounting block.

[0009] Preferably, the outer side wall of the female terminal connector is rotatably connected to a threaded sleeve two. The threaded sleeve two has a sealing groove on the side near the male terminal connector. The threaded sleeve two is threadedly connected to the threaded sleeve one. The female terminal connector and the male terminal connector are further connected through the cooperation of the threaded sleeve two and the threaded sleeve one.

[0010] Preferably, a sealing strip is fixedly connected to the side of the movable ring near the female terminal connector, and a hidden groove is opened on the side of the sealing strip near the male terminal connector. A telescopic rod is fixedly connected to the inner wall of the hidden groove. A spring is sleeved on the outer wall of the telescopic rod. The movable ring is driven to retract through the cooperation between the movable ring and the telescopic rod, and a secondary seal is achieved by the cooperation between the sealing strip and the threaded sleeve to achieve waterproofing.

[0011] Preferably, the conductive part has a conductive groove inside, and two sets of connecting plates are fixedly connected to the top of the conductive part. A fixed rod is rotatably connected to the inner side wall of the connecting plate, and the fixed rod is driven to rotate through the connecting plate.

[0012] Preferably, a pressing block is abutting above the fixing rod. The pressing block is fixedly connected to the inner wall of the threaded sleeve. The pressing block is used to fix the cable wire inside the conductive part to prevent the cable from falling off.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] By using the male terminal connector and the moving ring, the interference fit between the rubber block and the mating groove fills the gap, preventing water from entering and achieving primary waterproofing. The extrusion pad further compresses the rubber block to make it fill the gap in the mating groove more evenly. When the threaded sleeve one and threaded sleeve two are tightened, the sealing strip is compressed to form an axial seal, thus forming secondary waterproofing. The telescopic rod and spring make the sealing strip self-adaptively tighten, compensating for loosening caused by wear or vibration, further improving the reliability of waterproofing. At the same time, the conductive part slides to drive the extrusion block to fix the cable wire, preventing it from falling off and enhancing the reliability when energized. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the male terminal connector structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Male terminal connector; 101. Slide rod; 2. Moving ring; 3. Threaded sleeve one; 4. Conductive part; 5. Threaded sleeve two; 6. Female terminal connector; 7. Limiting block; 8. Mounting block; 9. Rubber block; 10. Sealing strip; 11. Connecting plate; 12. Inner groove; 13. Extrusion pad; 14. Butt groove; 15. Extrusion block; 16. Fixing rod; 17. Telescopic rod; 18. Spring. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] This utility model provides, for example Figure 1-4The photovoltaic connection device shown includes a male terminal connector 1. A slide rod 101 is fixedly connected to the left side of the male terminal connector 1. A movable ring 2 is slidably connected to the outer wall of the slide rod 101. A threaded sleeve 3 is fixedly connected to the left side of the movable ring 2. A conductive part 4 is provided inside the threaded sleeve 3 and is fixedly connected to the left side of the slide rod 101. Several sets of rubber blocks 9 are sleeved on the outer wall of the conductive part 4. A female terminal connector 6 is provided on the left side of the rubber blocks 9. The female terminal connector 6 and the conductive part 4 are interlocked. Several sets of mating grooves 14 are opened on the inner side wall of the female terminal connector 6, and the positions of the mating grooves 14 correspond to the rubber blocks 9. The initial connection between the male terminal connector 1 and the female terminal connector 6 and the waterproofing are achieved through the cooperation of the rubber blocks 9 and the mating grooves 14. The inner wall of the female terminal connector 6 has an inner groove 12, and an extrusion pad 13 is fixedly connected to the inner wall of the inner groove 12. The extrusion pad 13 is located outside the mating groove 14. The extrusion pad 13 further extrudes the rubber block 9 so that the rubber block 9 fills the gap of the mating groove 14 more evenly. The left side of the female terminal connector 6 is fixedly connected to a limiting block 7, and the left side of the limiting block 7 is fixedly connected to an installation block 8. The limiting block 7 and the installation block 8 realize the connection between the female terminal connector 6 and the external parts. The outer wall of the female terminal connector 6 is rotatably connected to a threaded sleeve 2 5. The threaded sleeve 2 5 has a sealing groove on the side near the male terminal connector 1. The threaded sleeve 2 5 is threadedly connected to the threaded sleeve 1 3. The cooperation between the threaded sleeve 2 5 and the threaded sleeve 1 3 further connects the female terminal connector 6 and the male terminal connector 1.

[0024] Refer to the instruction manual appendix Figure 1-4A sealing strip 10 is fixedly connected to the side of the moving ring 2 near the female terminal connector 6. A hidden groove is opened on the side of the sealing strip 10 near the male terminal connector 1, and a telescopic rod 17 is fixedly connected to the inner wall of the hidden groove. The minimum length of the telescopic rod 17 is less than that of the hidden groove. A spring 18 is sleeved on the outer wall of the telescopic rod 17. The moving ring 2 is driven to retract by the cooperation between the moving ring 2 and the telescopic rod 17, and a secondary seal is performed by the cooperation between the sealing strip 10 and the threaded sleeve 5 to waterproof. A conductive groove is opened inside the conductive part 4. Two sets of connecting plates 11 are fixedly connected to the top of the conductive part 4. A fixed rod 16 is rotatably connected to the inner wall of the connecting plate 11. The fixed rod 16 is rotated by the connecting plate 11. A pressing block 15 is abutted above the fixed rod 16. The pressing block 15 is fixedly connected to the threaded sleeve 5. The inner wall of the threaded sleeve 3 is secured by the compression block 15 to prevent the cable from falling off. Through the cooperation of the male terminal connector 1 and the moving ring 2, the rubber block 9 and the mating groove 14 are filled with an interference fit to prevent water from entering and achieve primary waterproofing. The compression pad 13 further compresses the rubber block 9 to make the rubber block 9 fill the gap of the mating groove 14 more evenly. When the threaded sleeve 3 and the threaded sleeve 2 are tightened, the sealing strip 10 is compressed to form an axial seal and achieve secondary waterproofing. The telescopic rod 17 and the spring 18 are used to make the sealing strip 10 self-adaptively tighten to compensate for loosening caused by wear or vibration and further improve the reliability of waterproofing. At the same time, the conductive part 4 slides to drive the compression block 15 to fix the cable wire and prevent it from falling off to enhance the reliability when energized.

[0025] The working principle of this practical application is as follows:

[0026] Refer to the instruction manual appendix Figure 1-4 When connecting the male terminal connector 1 and the female terminal connector 6, first insert the terminal into the interior of the male terminal connector 1, so that the compression block 15 contacts the cable wire. Then, insert the male terminal connector 1 into the interior of the female terminal connector 6, so that the rubber block 9 is embedded in the mating groove 14 to form a preliminary seal. After the rubber block 9 is embedded in the mating groove 14, the compression pad 13 is used to further compress the rubber block 9 to make the rubber block 9 fill the gap of the mating groove 14 more evenly to strengthen the seal. Rotate the threaded sleeve 1 3 and the threaded sleeve 2 5, drive the moving ring 2 to slide along the slide rod 101, push the sealing strip 10 to press the sealing groove of the threaded sleeve 2 5 to achieve secondary waterproofing. When the threaded sleeve 2 5 is tightened, the compression pad 13 will further compress the rubber block 9 to enhance the sealing performance. At the same time, the compression block 15 fixes the cable in the conductive part 4. Finally, the telescopic rod 17 and the spring 18 are used to make the sealing strip 10 self-adaptively tighten, compensate for loosening caused by wear or vibration, and further improve the reliability of waterproofing.

[0027] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A photovoltaic connection device with multiple waterproof structure, comprising a male terminal connector (1), characterized in that: The male terminal connector (1) is fixedly connected with a sliding rod (101) on the left side, the outer side wall of the sliding rod (101) is slidably connected with a moving ring (2), the left side of the moving ring (2) is fixedly connected with a threaded sleeve one (3), the inside of the threaded sleeve one (3) is provided with a conductive part (4) and the conductive part (4) is fixedly connected to the left side of the sliding rod (101), the outer side wall of the conductive part (4) is sleeved with a plurality of groups of rubber blocks (9), the left side of the rubber block (9) is provided with a female terminal connector (6), the female terminal connector (6) and the conductive part (4) are mutually clamped, and the inner side wall of the female terminal connector (6) is provided with a plurality of groups of butt grooves (14) and the positions of the butt grooves (14) correspond to the rubber blocks (9).

2. The photovoltaic connection device with multiple waterproof structure according to claim 1, characterized in that: The inner side wall of the female terminal connector (6) is provided with an inner groove (12), the inner side wall of the inner groove (12) is fixedly connected with a pressing pad (13), and the pressing pad (13) is located outside the butt groove (14).

3. The photovoltaic connection device with multiple waterproof structure according to claim 1, characterized in that: The left side of the female terminal connector (6) is fixedly connected with a limiting block (7), and the left side of the limiting block (7) is fixedly connected with a mounting block (8).

4. The photovoltaic connection device with multiple waterproof structure according to claim 1, characterized in that: The outer side wall of the female terminal connector (6) is rotatably connected with a threaded sleeve two (5), one side of the threaded sleeve two (5) close to the male terminal connector (1) is provided with a sealing groove, and the threaded sleeve two (5) is threadedly connected with the threaded sleeve one (3).

5. The photovoltaic connection device with multiple waterproof structure according to claim 1, characterized in that: The side of the moving ring (2) close to the female terminal connector (6) is fixedly connected with a sealing strip (10), one side of the sealing strip (10) close to the male terminal connector (1) is provided with a hidden groove, and the inner side wall of the hidden groove is fixedly connected with an extension rod (17), and the outer side wall of the extension rod (17) is sleeved with a spring (18).

6. The photovoltaic connection device with multiple waterproof structure according to claim 1, characterized in that: The inside of the conductive part (4) is provided with a conductive groove, the top of the conductive part (4) is fixedly connected with two groups of connecting plates (11), and the inner side wall of the connecting plate (11) is rotatably connected with a fixed rod (16).

7. The photovoltaic connection device with multiple waterproof structure according to claim 6, characterized in that: The upper side of the fixed rod (16) is abutted with a pressing block (15), and the pressing block (15) is fixedly connected to the inner side wall of the threaded sleeve one (3).

Images