Junction box suitable for double-glass assembly

Abstract

The utility model discloses a junction box suitable for a double-glass assembly, which comprises a box body, two adjacent side ends on the box body are fixedly connected with adjusting pieces, one ends of the two adjusting pieces far away from the box body are fixedly connected with L-shaped seats, side ends of the L-shaped seats are provided with convex grooves, convex seats are arranged in the convex grooves in a sliding manner, and the convex seats are fixedly connected with the box body. A first screw rod is in threaded connection with the interior of the convex seat, a rotating shaft is rotationally connected to the L-shaped seat, the top end of the rotating shaft is fixedly connected with the bottom end of the first screw rod, a clamping plate is fixedly connected to the side end of the convex seat, non-slip mats are fixedly connected to the L-shaped seat and the clamping plate, a baffle is installed at the top end of the L-shaped seat, and the baffle is rotationally connected with the first screw rod. The junction box can be conveniently installed on double-glass assembly solar panels with different thicknesses, the installation stability of the junction box is improved, and the use practicability of the junction box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar photovoltaic power generation, and more particularly to a junction box suitable for double-glass components. Background Art

[0002] Currently, photovoltaic modules, composed of multiple solar cells, are widely used as the basic photovoltaic power generation unit in various building photovoltaic power generation systems. Transparent thin-film modules are also used as curtain wall materials to create energy-saving and environmentally friendly buildings. To improve power generation efficiency per unit area, various new and efficient photovoltaic module structures are being developed and applied. For example, double-glass modules, bifacial modules, and shingled modules have been developed and are now in commercial use. Double-glass modules require the use of corresponding photovoltaic module junction boxes.

[0003] A photovoltaic module junction box is a connector between a solar photovoltaic module and a solar charging control device, used to output the electricity generated by the solar cells to external power circuits. The junction box typically consists of a box body, wiring terminals located within the box body, and output cables extending into the box body and electrically connected to the wiring terminals. The wiring terminals connect to the solar photovoltaic module's welding ribbons, and the output cables provide external power supply.

[0004] After searching, the utility model patent with Chinese application number CN201720211787.5 discloses a photovoltaic junction box for double-glass modules, including a box body, a box cover, a wiring mechanism arranged in the box cavity, and an output cable led out from the inside of the box cavity. The box body is provided with a card slot at one end in the length direction and corresponding to the bottom of the box body. The box body is provided with through holes on the bottom wall and close to the card slot, the number of which is equivalent to and the position of which is corresponding to the terminal base. The through holes are connected to the card slot. The welding ribbon in the back panel of the photovoltaic module enters the box cavity through the card slot and the through hole and is electrically connected to the conductive connecting piece.

[0005] The box body is installed on the back of the double-glass solar panel by inserting the double-glass solar panel into the inside of the card slot. There are certain differences in the thickness of the double-glass solar panel during the production process. Since the thickness of the card slot is fixed, when the thickness of the produced double-glass solar panel is thicker, it is not convenient to insert the double-glass solar panel into the inside of the card slot. If the thickness of the produced double-glass solar panel is thinner, it is not convenient to clamp the double-glass solar panel inside the card slot, resulting in poor stability of the junction box installed on the double-glass solar panel. Therefore, it is not convenient to install the junction box on double-glass solar panels of different thicknesses, reducing the practicality of its use. Utility Model Content

[0006] (1) Technical problems solved

[0007] In response to the problems existing in the prior art, the present invention provides a junction box suitable for use with double-glass modules to solve the technical problem mentioned in the background art that the junction box is inconvenient to install on double-glass module solar panels of different thicknesses, thereby reducing its practicality.

[0008] (2) Technical solution

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a junction box suitable for use with double-glass components, comprising a box body, wherein two adjacent side ends of the box body are fixedly connected to adjusting pieces, and the ends of the two adjusting pieces away from the box body are fixedly connected to L-shaped seats, the side ends of the L-shaped seats are provided with convex grooves, the inner sliding end of the convex grooves is provided with a convex seat, the internal thread of the convex seat is connected to a first screw, the L-shaped seat is rotatably connected to a rotating shaft, the top of the rotating shaft is fixedly connected to the bottom end of the first screw, the side ends of the convex seat are fixedly connected to a splint, the L-shaped seat and the splint are fixedly connected to anti-slip pads, and a baffle is installed on the top of the L-shaped seat, which is rotatably connected to the first screw, so as to facilitate the installation of the junction box on double-glass component solar panels of different thicknesses, improve the stability of the installation of the junction box, and improve the practicality of its use.

[0010] The utility model is further configured as follows: the adjusting member includes a fixed frame and an adjusting plate, the adjusting plate is fixedly connected to the box body, the fixed frame is fixedly connected to the L-shaped seat, the adjusting plate is located inside the fixed frame, the adjusting plate and the fixed frame are slidably matched, a plurality of first fixing grooves are evenly arranged on the bottom end of the adjusting plate, a second screw is threadedly connected to the fixing frame, and a first fixing column adapted to the first fixing groove is fixedly connected to the top end of the second screw, so as to facilitate adjustment of the position of the box body.

[0011] The present invention is further configured such that the bottom end of the second screw is fixedly connected to a first handle to facilitate rotation of the second screw.

[0012] The utility model is further configured as follows: four fixing seats are evenly fixedly connected to the box body, square grooves are provided on the top ends of the four fixing seats, top columns are slidingly provided inside the square grooves, the top ends of the top columns are fixedly connected to rubber pads, a third screw is threadedly connected to the fixing seat, the top end of the third screw is rotatably connected to the bottom end of the top column, and the bottom end of the third screw is fixedly connected to a second handle, thereby improving the stability of the box body.

[0013] The present invention is further configured such that a third handle is fixedly connected to the bottom end of the rotating shaft to facilitate the rotation of the rotating shaft and the first screw.

[0014] The utility model is further configured such that a plurality of second fixing grooves are provided in a circular array at the top end of the third turning handle, a fixing block is fixedly connected to the side end of the L-shaped seat, a fixing screw is threadedly connected to the fixing block, and a second fixing column adapted for the second fixing groove is fixedly connected to the bottom end of the fixing screw to prevent the third turning handle, the rotating shaft and the first screw from rotating.

[0015] The present invention is further configured such that the bottom end of the box body is connected to a box cover by a plurality of screws, and a sealing gasket is provided between the box cover and the box body to facilitate sealing the box body.

[0016] The utility model is further configured such that a ring groove is provided at the bottom end of the box body, a sealing ring is fixedly connected to the top end of the sealing gasket, and the sealing ring is inserted into the inside of the ring groove to improve the sealing performance of the connection between the box cover and the box body.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a junction box suitable for double-glass modules, which has the following beneficial effects:

[0019] 1. When installing the junction box, place the two L-shaped seats in contact with the two adjacent sides of the double-glass solar panel, then rotate the shaft and the first screw clockwise. The first screw rotates clockwise to move the convex seat and the clamping plate downward, so that the L-shaped seat and the clamping plate clamp the double-glass solar panel, thereby facilitating the installation of the junction box on double-glass solar panels of different thicknesses, improving the stability of the junction box installation, and improving its practicality.

[0020] 2. The length of the adjusting plate and the fixing frame can be adjusted by sliding the adjusting plate inside the fixing frame. By adjusting the length of the two adjusting parts, the box body can be adjusted to the corresponding position under the double-glass solar panel to avoid installing the box body at the edge of the double-glass solar panel to prevent rain from falling on the box body.

[0021] 3. By rotating the third screw counterclockwise, the third screw rotates to slide the top column toward the outside of the square groove, so that the side end of the top column and the bottom end of the double-glass solar panel are in a tight state, which is convenient for stably supporting and fixing the junction box and improving the stability of the junction box installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front structure of a junction box suitable for double-glass modules in the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the connection between the adjustment member and the L-shaped seat and other structures in the utility model;

[0024] Figure 3This is a schematic diagram of the structure of the connection between the second screw rod, the first fixing column and the first turning handle in the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the third handle, the rotating shaft, the second fixing column, the fixing block and the fixing screws in the present invention;

[0026] Figure 5 This is a schematic diagram of the box structure in the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the box cover, sealing gasket and sealing ring in the utility model.

[0028] In the figure: 1. Box body; 2. L-shaped seat; 3. Convex groove; 4. Convex seat; 5. First screw; 6. Rotating shaft; 7. Clamp; 8. Anti-slip pad; 9. Baffle; 10. Fixed frame; 11. Adjustment plate; 12. First fixing groove; 13. Second screw; 14. First fixing column; 15. First turning handle; 16. Fixed seat; 17. Square groove; 18. Top column; 19. Rubber pad; 20. Third screw; 21. Second turning handle; 22. Third turning handle; 23. Second fixing groove; 24. Fixed block; 25. Fixing screw; 26. Second fixing column; 27. Box cover; 28. Sealing gasket; 29. Ring groove; 30. Sealing ring. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0031] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0032] See also Figure 1-6A junction box suitable for double-glass components includes a box body 1, the bottom end of the box body 1 is connected to a box cover 27 by multiple screws, a sealing gasket 28 is provided between the box cover 27 and the box body 1 to facilitate sealing the box body 1, a ring groove 29 is provided at the bottom end of the box body 1, and a sealing ring 30 is fixedly connected to the top of the sealing gasket 28. The sealing ring 30 is inserted into the inside of the ring groove 29 to improve the sealing performance of the connection between the box cover 27 and the box body 1. The two adjacent side ends of the box body 1 are fixedly connected with adjustment pieces, and the two adjustment pieces are far One end away from the box body 1 is fixedly connected to an L-shaped seat 2, and a convex groove 3 is provided on the side end of the L-shaped seat 2, and a convex seat 4 is slidingly provided inside the convex groove 3, and the internal thread of the convex seat 4 is connected to the first screw 5, and a rotating shaft 6 is rotatably connected to the L-shaped seat 2. The top of the rotating shaft 6 is fixedly connected to the bottom end of the first screw 5, and a splint 7 is fixedly connected to the side end of the convex seat 4. Anti-slip pads 8 are fixedly connected to the L-shaped seat 2 and the splint 7. A baffle 9 is installed on the top of the L-shaped seat 2, and the baffle 9 is rotatably connected to the first screw 5.

[0033] Specifically, when installing the junction box, the two L-shaped seats 2 are respectively contacted with the two adjacent sides of the double-glass component solar panel, and then the rotating shaft 6 and the first screw 5 are rotated clockwise. The first screw 5 is rotated clockwise to move the convex seat 4 and the clamping plate 7 downward, so that the L-shaped seat 2 and the clamping plate 7 clamp the double-glass component solar panel, thereby facilitating the installation of the junction box on double-glass component solar panels of different thicknesses, improving the stability of the installation of the junction box, and improving its practicality. By adjusting the length of the two adjusting parts, it is convenient to adjust the box body 1 to the corresponding position under the double-glass component solar panel, avoiding the box body 1 from being installed at the edge of the double-glass component solar panel, and preventing rain from splashing on the box body 1.

[0034] See also Figure 2 and Figure 3 The adjusting member includes a fixed frame 10 and an adjusting plate 11. The adjusting plate 11 is fixedly connected to the box body 1, and the fixed frame 10 is fixedly connected to the L-shaped seat 2. The adjusting plate 11 is located inside the fixed frame 10. The adjusting plate 11 slides with the fixed frame 10. A plurality of first fixing grooves 12 are evenly arranged at the bottom end of the adjusting plate 11. A second screw 13 is threadedly connected to the fixed frame 10. The top end of the second screw 13 is fixedly connected to a first fixing column 14 that is adapted to the first fixing groove 12. The bottom end of the second screw 13 is fixedly connected to a first turning handle 15 for facilitating the rotation of the second screw 13.

[0035] Specifically, by sliding the adjustment plate 11 inside the fixed frame 10, it is convenient to adjust the length of the adjustment plate 11 and the fixed frame 10. By adjusting the length of the two adjustment members, it is convenient to adjust the box body 1 to the corresponding position under the double-glass component solar panel, avoiding the box body 1 from being installed at the edge of the double-glass component solar panel, and avoiding rainwater from falling on the box body 1. By rotating the second screw 13 clockwise, the second screw 13 moves relative to the fixed frame 10 to the side close to the adjustment plate 11, and the first fixing column 14 is inserted into the corresponding first fixing groove 12, so that the adjustment plate 11 is fixed inside the fixed frame 10.

[0036] See also Figure 1 Four fixing seats 16 are evenly fixedly connected to the box body 1, and square grooves 17 are provided at the top ends of the four fixing seats 16. A top column 18 is slidingly provided inside the square grooves 17, and a rubber pad 19 is fixedly connected to the top end of the top column 18. The rubber pad 19 protects the double-glass component solar panel to prevent the double-glass component solar panel from being squeezed and damaged by the top column 18. A third screw 20 is threadedly connected to the fixing seat 16, and the top end of the third screw 20 is rotatably connected to the bottom end of the top column 18, and the bottom end of the third screw 20 is fixedly connected to a second handle 21.

[0037] Specifically, by rotating the third screw 20 counterclockwise, the third screw 20 rotates to cause the top column 18 to slide toward the outside of the square groove 17, so that the side end of the top column 18 and the bottom end of the double-glass component solar panel are in a tight state, which is convenient for stably supporting and fixing the junction box, thereby improving the stability of the junction box installation.

[0038] See also Figure 4 The bottom end of the rotating shaft 6 is fixedly connected to a third handle 22, which is convenient for rotating the rotating shaft 6 and the first screw 5. The top of the third handle 22 is provided with a plurality of second fixing grooves 23 in a circular array. The side end of the L-shaped seat 2 is fixedly connected to a fixing block 24, and a fixing screw 25 is threadedly connected to the fixing block 24. The bottom end of the fixing screw 25 is fixedly connected to a second fixing column 26 adapted to the second fixing groove 23 to prevent the third handle 22, the rotating shaft 6 and the first screw 5 from rotating.

[0039] Specifically, the third handle 22 is used to facilitate the rotation of the first screw 5. After the third handle 22 stops rotating, the fixing screw 25 is rotated clockwise. The fixing screw 25 drives the second fixing column 26 to move downward, so that the second fixing column 26 is inserted into the corresponding second fixing groove 23, thereby preventing the third handle 22, the rotating shaft 6 and the first screw 5 from rotating, thereby ensuring the stability of the clamping plate 7 and the L-shaped seat 2 clamped on the double-glass component solar panel.

[0040] In summary, when the overall equipment is in use:

[0041] First, the two L-shaped seats 2 are respectively in contact with the two adjacent sides of the double-glass component solar panel, and at the same time, the adjustment plate 11 is slid inside the fixing frame 10 to facilitate the adjustment of the length of the adjustment plate 11 and the fixing frame 10. By adjusting the length of the two adjustment members, the box body 1 is adjusted to the corresponding position below the double-glass component solar panel. Then, by rotating the second screw 13 clockwise, the second screw 13 moves relative to the fixing frame 10 to the side close to the adjustment plate 11, and the first fixing column 14 is inserted into the corresponding first fixing groove 12, so that the adjustment plate 11 is fixed inside the fixing frame 10, and then the second screw 13 is rotated clockwise. Rotate the rotating shaft 6 and the first screw 5 clockwise, and the first screw 5 rotates clockwise to move the convex seat 4 and the clamping plate 7 downward, so that the L-shaped seat 2 and the clamping plate 7 clamp the double-glass component solar panel. After clamping, rotate the fixing screw 25 clockwise, and the fixing screw 25 drives the second fixing column 26 to move downward, so that the second fixing column 26 is inserted into the corresponding second fixing groove 23, and the third handle 22 is fixed, thereby completing the installation of the junction box. The connection between the conductive connecting piece and the cable inside the junction box is the technology disclosed in the prior art, and its specific structure and connection method are not described in detail here.

[0042] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A junction box suitable for use with double-glass modules, comprising a box body (1), characterized by: The two adjacent side ends of the box body (1) are fixedly connected with adjustment members, and the ends of the two adjustment members away from the box body (1) are fixedly connected with L-shaped seats (2), the side ends of the L-shaped seats (2) are provided with convex grooves (3), the interior of the convex grooves (3) is provided with convex seats (4) for sliding, the interior of the convex seats (4) is threadedly connected with a first screw (5), the L-shaped seats (2) are rotatably connected with a rotating shaft (6), the top end of the rotating shaft (6) is fixedly connected with the bottom end of the first screw (5), the side ends of the convex seats (4) are fixedly connected with a splint (7), the L-shaped seats (2) and the splint (7) are fixedly connected with anti-slip pads (8), the top end of the L-shaped seats (2) is provided with a baffle (9), and the baffle (9) is rotatably connected with the first screw (5).

2. A junction box suitable for use with double-glass modules according to claim 1, characterized in that: The adjusting member comprises a fixing frame (10) and an adjusting plate (11), wherein the adjusting plate (11) is fixedly connected to the box body (1), and the fixing frame (10) is fixedly connected to the L-shaped seat (2). The adjusting plate (11) is located inside the fixing frame (10), and the adjusting plate (11) and the fixing frame (10) are slidably matched. A plurality of first fixing grooves (12) are evenly arranged at the bottom end of the adjusting plate (11), a second screw (13) is threadedly connected to the fixing frame (10), and a first fixing column (14) adapted to the first fixing groove (12) is fixedly connected to the top end of the second screw (13).

3. The junction box suitable for double-glass modules according to claim 2, characterized in that: The bottom end of the second screw rod (13) is fixedly connected to a first turning handle (15).

4. The junction box suitable for double-glass modules according to claim 1, characterized in that: Four fixing seats (16) are evenly fixedly connected to the box body (1), and the top ends of the four fixing seats (16) are provided with square grooves (17). A top column (18) is slidably provided inside the square groove (17), and the top end of the top column (18) is fixedly connected to a rubber pad (19). A third screw rod (20) is threadedly connected to the fixing seat (16), and the top end of the third screw rod (20) is rotatably connected to the bottom end of the top column (18), and the bottom end of the third screw rod (20) is fixedly connected to a second turning handle (21).

5. The junction box suitable for double-glass modules according to claim 1, characterized in that: The bottom end of the rotating shaft (6) is fixedly connected to a third turning handle (22).

6. The junction box suitable for double-glass modules according to claim 5, characterized in that: The top end of the third turning handle (22) is provided with a plurality of second fixing grooves (23) in a circular array, the side end of the L-shaped seat (2) is fixedly connected to a fixing block (24), a fixing screw (25) is threadedly connected to the fixing block (24), and the bottom end of the fixing screw (25) is fixedly connected to a second fixing column (26) adapted to the second fixing groove (23).

7. The junction box suitable for double-glass modules according to claim 1, characterized in that: The bottom end of the box body (1) is connected to a box cover (27) via a plurality of screws, and a sealing gasket (28) is provided between the box cover (27) and the box body (1).

8. The junction box suitable for double-glass modules according to claim 7, characterized in that: The bottom end of the box body (1) is provided with an annular groove (29), the top end of the sealing gasket (28) is fixedly connected with a sealing ring (30), and the sealing ring (30) is inserted into the interior of the annular groove (29).

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