A photovoltaic combiner box convenient to install

Abstract

This utility model relates to the field of photovoltaic combiner box technology, specifically a photovoltaic combiner box that is easy to install. It includes a photovoltaic combiner box body, with two mounting seats symmetrically fixed to the outer wall of the body. A T-shaped groove is formed on one side of each mounting seat. A first support plate is fixedly connected to the upper end of the outer wall of each mounting seat. A snap-on plate is fixed to the bottom surface of one end of the first support plate. A second support plate is provided on one side of each mounting seat, located below the first support plate and slidably connected to the mounting seat. Compared to existing technologies, this patent first fastens and fixes the first support plate and snap-on plate to the upper crossbar. Then, based on the position of the lower crossbar, the position of the second support plate is adjusted by sliding to fasten and fix the second support plate and snap-on plate to the lower crossbar. Precise measurement of the spacing between the mounting ears of the combiner box body is not required before installing the body.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic combiner box technology, specifically a photovoltaic combiner box that is easy to install. Background Technology

[0002] A photovoltaic (PV) combiner box is a key piece of equipment in a photovoltaic (PV) system, used to collect the direct current (DC) generated by multiple PV modules and transmit it to the inverter. It integrates lightning protection and overcurrent protection devices, reduces the number of connecting cables between the PV modules and the inverter, improves system reliability, and facilitates monitoring of the operating status of each module. It is an indispensable intermediate link in both distributed and centralized PV power plants. However, existing PV combiner boxes generally suffer from some inconveniences and defects during installation.

[0003] The current patent publication number CN222721457U proposes a photovoltaic combiner box that is easy to install, including a combiner box body and a box door. The box door is hinged to the opening on the front side of the combiner box body. It also includes a fixing component. The back of the combiner box body is provided with a connecting buckle. The connecting buckle includes a connecting plate and a fastening plate. The two ends of the connecting plate are respectively connected to the combiner box body and the fastening plate. The connecting plate is located above the fastening plate. The distance between the fastening plate and the combiner box body is adapted to the crossbar. The fixing component fixes the position of the connecting buckle on the crossbar.

[0004] With the above setup, during installation, simply attach the connecting buckle on the back of the combiner box to the crossbar on the photovoltaic bracket. The combiner box will then be hung on the crossbar by the connecting buckle. After hanging, use the fastener to fix the position of the connecting buckle on the crossbar to complete the connection. When using the fastener, the combiner box is already secured to the crossbar by the connecting buckle, eliminating the need for manual support and alignment, making installation more convenient. After connection, the weight of the combiner box is supported by the connecting buckle. The large contact area between the connecting buckle and the crossbar ensures even pressure distribution and greater stability. The connecting buckle can be integrated or welded to the combiner box body using various methods.

[0005] However, the existing technical solutions still have the following drawbacks in operation:

[0006] In existing technical solutions, before installing the main body of the combiner box, it is necessary to accurately measure the distance between the upper and lower mounting ears of the combiner box in order to determine the installation distance between the two crossbars. The measurement is prone to errors. If the error is too large, it will cause the combiner box and the crossbars to be mismatched, and the position of the crossbars needs to be readjusted. Repeated operation wastes manpower and resources, increases the preliminary measurement process, prolongs the installation preparation time, and reduces construction efficiency. Utility Model Content

[0007] This utility model aims to provide a photovoltaic combiner box that is easy to install. It mainly solves the technical problem that in the prior art, before installing the main body of the combiner box, it is necessary to accurately measure the distance between the upper and lower mounting ears of the combiner box in order to determine the installation distance between the two crossbars. The measurement is prone to error. If the error is too large, it will cause the combiner box and the crossbars to not match. The crossbars need to be readjusted, which wastes manpower and resources, increases the preliminary measurement process, prolongs the installation preparation time, and reduces the construction efficiency.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0009] A photovoltaic combiner box with easy installation includes a photovoltaic combiner box body. Two mounting seats are symmetrically fixed to the outer wall of the photovoltaic combiner box body. A T-shaped groove is opened on one side of the mounting seat. A first support plate is fixed to the upper end of the outer wall of the mounting seat. A buckle plate is fixed to the bottom surface of one end of the first support plate. A second support plate is provided on one side of the mounting seat. The second support plate is located below the first support plate and is slidably connected to the mounting seat. A buckle plate is fixed to the bottom surface of one end of the second support plate. A connecting hole is symmetrically opened on one side of the buckle plate. A support seat is fixed to the upper end of the second support plate, which is opposite to the opening of the T-shaped groove. A clearance hole is opened through one side of the support seat. A stop block is rotatably connected in the T-shaped groove. The outer walls of both ends of the stop block abut against the inner wall of the T-shaped groove. A support rod is fixed to one side of the stop block. One end of the support rod extends out of the T-shaped groove and passes through the clearance hole.

[0010] The working principle and beneficial effects of this utility model:

[0011] 1. Working Principle: When the photovoltaic combiner box body needs to be installed on the crossbar, the first support plate and buckle plate located at the upper end of the mounting base are fastened to the crossbar (the crossbar is existing technology and is not described in detail in this application). Then, the support rod is moved, and the support rod drives the stop block to rotate. After the outer wall of the stop block moves away from the inner wall of the T-shaped groove, the second support plate is moved. The second support plate drives the buckle plate and support base to move synchronously. The movement of the support base drives the support rod to move, and the movement of the support rod drives the stop block to move along the T-shaped groove until the second support plate and buckle plate are fastened to the crossbar. The support rod is released, and the stop block rotates under the elastic restoring force of the spring shaft and abuts against the inner wall of the T-shaped groove. The stop block cannot move, and therefore the support rod cannot move, and therefore the support base cannot move. Consequently, the second support plate and buckle plate cannot be fixed in position. By passing bolts through the connecting holes of the buckle plate and the connecting holes on the crossbar, and then tightening the nuts with the bolts, the buckle plate and the crossbar are fixed together, and the combiner box body is fixed to the crossbar.

[0012] 2. Beneficial effects:

[0013] Existing technology simplifies installation by attaching the connectors on the back of the combiner box to the crossbars of the photovoltaic support. The combiner box then hangs on the crossbars using the connectors. After hanging, fasteners are used to secure the connectors to the crossbars, completing the connection. Since the combiner box is already secured to the crossbars with the fasteners in place, manual alignment is unnecessary, making installation more convenient. However, this existing technology requires precise measurement of the distance between the upper and lower mounting ears of the combiner box before installation to determine the installation distance between the two crossbars. Measurement errors are prone to occur, and excessive errors can lead to mismatch between the combiner box and the crossbars. Previously, the crossbar position needed to be readjusted, resulting in repeated operations that wasted manpower and resources, increased preliminary measurement procedures, extended installation preparation time, and reduced construction efficiency. This solution first fastens and fixes the first support plate and buckle plate to the upper crossbar. Then, based on the position of the lower crossbar, the position of the second support plate is adjusted by sliding, and the second support plate and buckle plate are fastened and fixed to the lower crossbar. This solves the technical problem that before installing the main body of the combiner box, it is necessary to accurately measure the distance between its upper and lower mounting ears to determine the installation distance of the crossbar. If the measurement error is too large, it will cause the combiner box and the crossbar to be mismatched, requiring repeated adjustments of the crossbar position, which wastes manpower and resources, increases measurement procedures, extends preparation time, and reduces construction efficiency.

[0014] Preferably, the inner wall of the T-shaped groove is provided with a sliding groove, and a slider is slidably connected in the sliding groove. The side of the stop block near the sliding groove is rotatably connected to the slider through a spring shaft.

[0015] Preferably, the stop block has an elliptical cross-section, and one end of the support rod is located on the side of the stop block facing downwards.

[0016] Preferably, the inner wall of the T-groove is symmetrically fixed with rubber pads, and the outer wall of the stop block is fixed with rubber rings.

[0017] Preferably, a rotating block is fixedly connected to one end of the support rod.

[0018] Preferably, a limiting groove communicating with the clearance hole is provided on the side of the support base away from the T-shaped groove, and a limiting rod is slidably connected in the limiting groove.

[0019] Preferably, guide blocks are fixed to both sides of the limiting rod, and the inner wall of the limiting groove is provided with a guide groove that matches the guide blocks. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a photovoltaic combiner box that is easy to install, which is the subject of this utility model patent.

[0021] Figure 2 This is a three-dimensional structural diagram of a photovoltaic combiner box that is easy to install, which is the subject of this utility model patent.

[0022] Figure 3 This is a three-dimensional structural diagram of a photovoltaic combiner box that is easy to install, which is the subject of this utility model patent.

[0023] Figure 4 This is a top view of the interior of the mounting base of a photovoltaic combiner box that is easy to install, according to this utility model patent.

[0024] Figure 5 This is a cross-sectional view of a support base for a photovoltaic combiner box that is easy to install, which is the subject of this utility model patent.

[0025] Figure 6 This is a three-dimensional structural diagram of a photovoltaic combiner box that is easy to install, which is the subject of this utility model patent.

[0026] Figure 7 This utility model patent provides a structural diagram showing the stop block abutting against the inner wall of a T-shaped groove in a photovoltaic combiner box that is easy to install.

[0027] Figure 8 This utility model patent provides a structural diagram showing the separation of the stop block from the inner wall of the T-shaped groove in a photovoltaic combiner box that is easy to install.

[0028] Figure 9 This is a cross-sectional view of a support base for a photovoltaic combiner box that is easy to install, which is part of this utility model patent.

[0029] The reference numerals in the accompanying drawings of the instruction manual include: 1. Main body of the combiner box; 2. Mounting base; 3. First support plate; 4. Buckle plate; 5. Second support plate; 6. Connecting hole; 7. T-slot; 8. Support base; 9. Alternating hole; 10. Stop block; 11. Support rod; 12. Slide groove; 13. Slider; 14. Rubber pad; 15. Rubber ring; 16. Limiting groove; 17. Limiting rod; 18. Guide block; 19. Guide groove; 20. Rotating block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figures 1-9The diagram illustrates a conveniently installed photovoltaic combiner box, comprising a photovoltaic combiner box body 1. Two mounting bases 2 are symmetrically fixed to the outer wall of the photovoltaic combiner box body 1. A T-shaped groove 7 is formed on one side of each mounting base 2. A first support plate 3 is fixedly connected to the upper end of one side of each mounting base 2. A snap-on plate 4 is fixedly connected to the bottom surface of one end of the first support plate 3. A second support plate 5 is provided on one side of each mounting base 2. The second support plate 5 is located below the first support plate 3 and slidably connected to the mounting base 2. A snap-on plate 4 is fixedly connected to the bottom surface of one end of the second support plate 5. Connecting holes 6 are symmetrically formed on one side of the snap-on plate 4. The first support plate 3 is fixedly connected to the mounting base 2, enabling the combiner box to... The main body 1 of the junction box can be pre-installed by fastening the upper crossbar. Then, the position of the second support plate 5 and the corresponding fastening plate 4 can be flexibly adjusted according to the position of the lower crossbar to make them fit and fasten with the lower crossbar. This structural design effectively eliminates the need to accurately measure the distance between the upper and lower mounting ears of the junction box main body 1 to determine the installation distance of the two crossbars in the traditional installation process. It fundamentally avoids the problem of the junction box main body 1 and the crossbar not matching due to excessive measurement error. In addition, it eliminates the need to repeatedly adjust the position of the crossbar, reduces the waste of manpower and material resources, simplifies the early installation preparation process, shortens the installation preparation time, and significantly improves construction efficiency.

[0032] A support base 8, opposite to the opening of the T-slot 7, is fixedly connected to the upper end face of the second support plate 5. A clearance hole 9 is provided through one side of the support base 8. A stop block 10 is rotatably connected inside the T-slot 7. A sliding groove 12 is provided on the inner wall of the T-slot 7, and a slider 13 is slidably connected inside the sliding groove 12. A support rod 11 is fixedly connected to one side of the stop block 10. One end of the support rod 11 extends from the T-slot 7 and passes through the clearance hole 9. The stop block 10 has an elliptical cross-section. One end of the support rod 11 is located on the side of the stop block 10 facing downwards. The side of the stop block 10 closest to the sliding groove 12 is rotatably connected to the slider 13 via a spring shaft. The outer walls of both ends of the stop block 10 abut against the inner wall of the T-shaped groove 7. The cross-section of the stop block 10 is elliptical, which not only limits the upper and lower positions but also prevents it from falling off through its cooperation with the T-shaped groove 7. Through the cooperation between the slider 13 and the stop block 10, the stop block 10 can move up and down in the T-shaped groove 7 when the position of the second support plate 5 needs to be adjusted. Under the elastic restoring force of the spring shaft, both ends can always abut against the inner wall of the T-shaped groove, thereby stably limiting the position of the support rod 11. In turn, the position of the second support plate 5 is reliably fixed indirectly through the support seat 8, ensuring the stability of the structure after adjustment.

[0033] Rubber pads 14 are symmetrically fixed to the inner wall of the T-slot 7, and rubber rings 15 are fixed to the outer wall of the stop block 10. A rotating block 20 is fixed to one end of the support rod 11. The rubber pads 14 fixed to the inner wall of the T-slot 7 and the rubber rings 15 fixed to the outer wall of the stop block 10 can increase the friction between the stop block 10 and the inner wall of the T-slot 7. Combined with the elastic restoring force of the spring shaft, it can ensure that both ends of the stop block 10 are always in close contact with the inner wall of the T-slot 7, preventing it from slipping down unexpectedly. This further improves the stability and reliability of the stop block 10 in limiting the position of the second support plate 5. In addition, the rotating block 20 at the end of the support rod 11 makes it easy for the operator to rotate and adjust the stop block 10, improving the ease of operation.

[0034] A limiting groove 16 communicating with the clearance hole 9 is provided on the side of the support base 8 away from the T-shaped groove 7. A limiting rod 17 is slidably connected in the limiting groove 16. Guide blocks 18 are fixed to both sides of the limiting rod 17. A guide groove 19 matching the guide block 18 is provided on the inner wall of the limiting groove 16. The cooperation between the limiting groove 16 and the limiting rod 17 allows the support rod 11 to be moved up and down when the position of the stop block 10 needs to be moved. The support rod 11 drives the stop block 10 to rotate. After the two ends of the stop block 10 disengage from the inner wall of the T-shaped groove 7, the limiting rod 17 slides down and abuts against the support rod 11, restricting the support rod 11 from moving back. This keeps the stop block 10 in a state where the two ends are separated from the inner wall of the T-shaped groove 7. The operator does not need to continuously manually fix the support rod 11, which significantly improves the ease of operation of adjusting the up and down movement of the stop block 10 and further optimizes the efficiency of the position adjustment of the second support plate 5.

[0035] As can be seen from the above, the specific embodiments of this utility model are as follows:

[0036] When the main body 1 of the junction box needs to be installed on the crossbar, the limiting rod 17 located in the limiting groove 16 on one side of the support base 8 is moved upward. As the limiting rod 17 moves along the limiting groove 16, it drives the guide blocks 18 fixed on both sides to move synchronously along the guide groove 19. The rotating block 20 moves, and the rotating block 20 drives the support rod 11 to move along the clearance hole 9 through one side of the support base 8. The movement of the support rod 11 drives the stop block 10 to rotate counterclockwise. In turn, the stop block 10 drives the rubber ring 15 fixed to the outer wall to rotate synchronously, so that the two ends of the stop block 10 are disengaged from the T-shape. The rubber pad 14 fixed to the inner wall of the groove 7 moves downward and the limiting rod 17 moves downward. The limiting rod 17 abuts against the support rod 11 to prevent the support rod 11 from moving back. The two ends of the stop block 10 remain separated from the rubber pad 14 fixed to the inner wall of the T-groove 7. The first support plate 3 fixed to the upper end of one side of the mounting base 2 drives the buckle plate 4 to fasten with the upper crossbar. Then, according to the position of the lower crossbar, the position of the second support plate 5 is moved. The up and down movement of the second support plate 5 will synchronously drive the buckle plate 4 fixed to the lower end face and the support base 8 on the upper end face to move synchronously. The movement of the support base 8 drives the support rod 11 in the clearance hole 9. Synchronous movement: The support rod 11 moves, causing the stop block 10 to move along the T-groove 7. The stop block 10 moves, causing the slider 13, which is connected by a spring shaft, to move synchronously along the slide groove 12. The second support plate 5 moves the buckle plate 4 to engage with the lower crossbar, and then the upper limit rod 17 moves upward. After the support rod 11 is no longer restricted, the stop block 10 rotates under the elastic restoring force of the spring shaft. The rubber ring 15 fixed to the outer wall of the stop block 10 abuts tightly against the rubber pad 14. Because the second support plate 5 is subjected to the upward force of the crossbar, the support seat 8 always provides support to the support rod 11. The upward force causes the stop block 10 to be subjected to an upward force, ensuring that the stop block 10 remains against the rubber pad 14 fixed to the inner wall of the T-groove 7. After the position of the stop block 10 is limited, the position of the support rod 11 is fixed. When the position of the support rod 11 is fixed, the position of the support seat 8 is fixed, and then the positions of the second support plate 5 and the buckle plate 4 fixed to the lower end face are fixed. Then, the bolts are passed through the connecting holes (6) on the buckle plate (4) and the connecting holes on the crossbar, and the bolts are tightened with nuts to realize the connection between the buckle plate (4) and the crossbar, and to further fix the main body 1 of the junction box and the crossbar.

[0037] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A photovoltaic combiner box which is easy to install, comprising a photovoltaic combiner box main body (1), characterized in that, The outer wall of the photovoltaic combiner box body (1) is symmetrically fixed with two mounting seats (2). A T-shaped groove (7) is provided on one side of each mounting seat (2). A first support plate (3) is fixedly connected to the upper end of the outer wall of each mounting seat (2). A buckle plate (4) is fixedly connected to the bottom surface of one end of the first support plate (3). A second support plate (5) is provided on one side of each mounting seat (2). The second support plate (5) is located below the first support plate (3) and is slidably connected to the mounting seat (2). A buckle plate (4) is fixedly connected to the bottom surface of one end of the second support plate (5). A connecting hole (6) is symmetrically opened on one side of the plate (4). A support seat (8) is fixedly connected to the upper end face of the second support plate (5) and is opposite to the opening position of the T-shaped groove (7). A clearance hole (9) is opened through one side of the support seat (8). A stop block (10) is rotatably connected in the T-shaped groove (7). The outer walls of both ends of the stop block (10) abut against the inner wall of the T-shaped groove (7). A support rod (11) is fixedly connected to one side of the stop block (10). One end of the support rod (11) extends out from the T-shaped groove (7) and passes through the clearance hole (9).

2. The easily-installed photovoltaic combiner box according to claim 1, wherein The inner wall of the T-shaped groove (7) is provided with a sliding groove (12), and a slider (13) is slidably connected in the sliding groove (12). The side of the stop block (10) near the sliding groove (12) is rotatably connected to the slider (13) through a spring shaft.

3. The easily installed photovoltaic combiner box according to claim 1, characterized in that, The stop block (10) has an elliptical cross-section, and one end of the support rod (11) is located on the side of the stop block (10) facing downwards.

4. The easily installed photovoltaic combiner box according to claim 1, characterized in that, The inner wall of the T-groove (7) is symmetrically fixed with rubber pads (14), and the outer wall of the stop block (10) is fixed with rubber rings (15).

5. The photovoltaic combiner box with easy installation according to claim 1, characterized in that, A rotating block (20) is fixedly connected to one end of the support rod (11).

6. The easily installed photovoltaic combiner box according to claim 1, characterized in that, The support base (8) has a limiting groove (16) on the side away from the T-shaped groove (7) that communicates with the clearance hole (9), and a limiting rod (17) is slidably connected in the limiting groove (16).

7. The easily installed photovoltaic combiner box according to claim 6, characterized in that, Guide blocks (18) are fixedly connected to both sides of the limiting rod (17), and a guide groove (19) matching the guide block (18) is opened on the inner wall of the limiting groove (16).

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