Photovoltaic junction box easy to disassemble and assemble

Abstract

The utility model provides a photovoltaic junction box easy to disassemble and assemble, which relates to the technical field of photovoltaic junction boxes and comprises a positive junction box, a middle junction box and a negative junction box which are all provided with positioning installation assemblies. The surface of the positive electrode junction box, the surface of the middle junction box and the surface of the negative electrode junction box are each provided with a box cover through a positioning installation assembly, and the front end of the positive electrode junction box and the front end of the negative electrode junction box are each provided with a wire inlet. The fixing columns are separated from the interiors of the limiting grooves, meanwhile, the fixing columns can be separated from the interiors of the fixing holes, the limiting blocks are taken out from the interiors of the limiting grooves, and meanwhile, the box covers can be detached from the surfaces of the positive electrode junction box, the middle junction box and the negative electrode junction box; and devices in the anode junction box, the intermediate junction box and the cathode junction box are checked, maintained or replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic junction boxes, and in particular to an easily disassembled photovoltaic junction box. Background Art

[0002] The photovoltaic junction box is an important component in the solar cell module. It is a connecting device connected between the solar cell array constituted by the solar cell module and the solar cell control device, such as patent application number CN202021026913.8, a three-part photovoltaic junction box, including a left junction box, a middle junction box and a right junction box. The left junction box, the middle junction box and the right junction box each include a box body, a box cover and modular photovoltaic elements installed in the corresponding box body; each modular photovoltaic element includes a first conductive terminal, a diode packaging module and a second conductive terminal, and the end of the first conductive terminal or the second conductive terminal is provided with a cable riveting portion. The three-part photovoltaic junction box of the utility model reduces the volume of the junction box, can reduce its shielding of the photovoltaic module area, and improve the power generation performance of the photovoltaic module; the left, middle and right junction boxes are provided with modular photovoltaic elements of a unified structure, and the modular photovoltaic elements adopt an integrated packaging technology of conductive terminals and diodes to avoid secondary switching and enhance the conductivity of the diode; at the same time, it avoids the configuration of stamping dies with various structures during production, saving manufacturing costs. In the above technical scheme, the three-part photovoltaic junction box is usually an integrated structure that cannot be disassembled, so that when the photovoltaic junction box fails, it can only be replaced, and it is difficult to repair, resulting in a waste of resources. Utility Model Content

[0003] The main purpose of the utility model is to provide an easily disassembled photovoltaic junction box, which can effectively solve the problem in the background technology that the three-part photovoltaic junction box is usually an integrated structure that cannot be disassembled, so that when the photovoltaic junction box fails, it can only be replaced and is difficult to repair, resulting in a waste of resources.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an easily disassembled photovoltaic junction box, including a positive junction box, an intermediate junction box, and a negative junction box, wherein the positive junction box, the intermediate junction box, and the negative junction box are all provided with positioning and installation components, and the surfaces of the positive junction box, the intermediate junction box, and the negative junction box are all provided with box covers through the positioning and installation components, and the front ends of the positive junction box and the negative junction box are provided with wire inlets.

[0005] Preferably, a wire port pressure plate is installed on one end surface of the box cover of the positive terminal box and the negative terminal box, and the wire port pressure plate is located at the upper end of the wire inlet.

[0006] Preferably, the positioning and mounting assembly comprises a plurality of mounting plates, limit blocks, and a plurality of screws; the plurality of mounting plates are fixedly mounted on the inner walls of the positive terminal box, the intermediate terminal box, and the negative terminal box; the limit blocks are fixedly mounted on the lower surface of the box cover; and the plurality of screws are fixedly mounted on the surface of the positive terminal box, the intermediate terminal box, and the negative terminal box.

[0007] Preferably, a plurality of the mounting plate surfaces are provided with limit grooves, and the limit blocks are arranged inside the limit grooves.

[0008] Preferably, a plurality of fixing holes are equidistantly formed through the surface of the limit block.

[0009] Preferably, a guide plate is slidably installed in the middle of the screw, and a screw sleeve is sleeved and installed in the middle of the screw, and the screw sleeve is above the guide plate.

[0010] Preferably, a plurality of fixing columns are equidistantly fixedly mounted on the front surface of the guide plate, and a top plate is fixedly mounted on the top end of the screw rod.

[0011] Preferably, the fixing column moves through the limiting groove, and the top end of the fixing column is arranged inside the fixing hole.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] (1) The staff rotates the screw sleeve so that the screw sleeve moves upward in the middle of the screw rod and disengages from the upper surface of the guide plate. At this time, the staff pulls the guide plate upward to move the guide plate upward in the middle of the screw rod, and at the same time, it can drive the fixing column to move upward, so that the fixing column disengages from the inside of the limit groove, and at the same time, the fixing column can be disengaged from the inside of the fixing hole. At this time, the limit block is not constrained in the limit groove. At this time, the limit block can be taken out from the inside of the limit groove, and at the same time, the box cover can be removed from the surface of the positive terminal box, the middle terminal box, and the negative terminal box, and the components inside the positive terminal box, the middle terminal box, and the negative terminal box can be inspected, repaired, or replaced. Otherwise, the box cover can be installed on the positive terminal box, the middle terminal box, and the negative terminal box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of an easily disassembled photovoltaic junction box of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of an intermediate junction box of an easily disassembled photovoltaic junction box of the utility model;

[0016] Figure 3 This is a schematic diagram of the box cover structure of an easily disassembled photovoltaic junction box of the utility model;

[0017] Figure 4This is a schematic diagram of the enlarged structure of point A of an easily disassembled photovoltaic junction box of the utility model.

[0018] In the figure: 1. Positive terminal box; 2. Intermediate terminal box; 3. Negative terminal box; 4. Positioning and mounting assembly; 401. Guide plate; 402. Mounting plate; 403. Limiting groove; 404. Limiting block; 405. Fixing hole; 406. Screw; 407. Top plate; 408. Screw sleeve; 409. Fixing column; 5. Box cover; 6. Wire inlet; 7. Wire inlet pressure plate. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1 As shown, a photovoltaic junction box that is easy to disassemble and assemble includes a positive junction box 1, an intermediate junction box 2, and a negative junction box 3. The positive junction box 1, the intermediate junction box 2, and the negative junction box 3 are all provided with a positioning installation component 4. The surfaces of the positive junction box 1, the intermediate junction box 2, and the negative junction box 3 are all installed with a box cover 5 through the positioning installation component 4. The front ends of the positive junction box 1 and the negative junction box 3 are both provided with a wire inlet 6.

[0021] like Figure 1 As shown, a wire port pressing plate 7 is installed on one end surface of the box cover 5 installed on the positive terminal box 1 and the negative terminal box 3. The wire port pressing plate 7 is located at the upper end of the wire inlet 6. By setting the wire inlet 6, it is convenient for the staff to install wires on the positive terminal box 1 and the negative terminal box 3. The wire port pressing plate 7 is set on the box cover 5. When the box cover 5 is taken out, the wire port pressing plate 7 can be taken out, which is convenient for the staff to install and disassemble the wires.

[0022] like Figure 2 , 34, the positioning and installation assembly 4 includes a plurality of mounting plates 402, a limiting block 404, and a plurality of screws 406. The plurality of mounting plates 402 are fixedly mounted on the inner walls of the positive terminal box 1, the intermediate terminal box 2, and the negative terminal box 3. The limiting block 404 is fixedly mounted on the lower surface of the box cover 5. The plurality of screws 406 are fixedly mounted on the surfaces of the positive terminal box 1, the intermediate terminal box 2, and the negative terminal box 3. The surfaces of the plurality of mounting plates 402 are provided with limiting grooves 403. The limiting block 404 is fixedly mounted on the inner walls of the positive terminal box 1, the intermediate terminal box 2, and the negative terminal box 3. 4 is arranged inside the limiting groove 403, and a plurality of fixing holes 405 are equidistantly penetrated on the surface of the limiting block 404, a guide plate 401 is slidably installed in the middle of the screw 406, a screw sleeve 408 is sleeved and installed in the middle of the screw 406, and the screw sleeve 408 is above the guide plate 401, and a plurality of fixing columns 409 are equidistantly fixedly installed on the front surface of the guide plate 401, a top plate 407 is fixedly installed on the top of the screw 406, and the fixing columns 409 movably pass through the limiting groove 403, and the fixing The top of the fixed column 409 is set inside the fixing hole 405. The staff rotates the screw sleeve 408 to make the screw sleeve 408 move upward in the middle of the screw rod 406, so that the screw sleeve 408 is separated from the upper surface of the guide plate 401. At this time, the staff pulls the guide plate 401 upward to move the guide plate 401 upward in the middle of the screw rod 406, and at the same time, the fixed column 409 can be driven to move upward, so that the fixed column 409 is separated from the inside of the limiting groove 403, and at the same time, the fixed column 409 can be removed from the fixing hole 405. 05 is detached from the inside, and the limit block 404 is not constrained in the limit groove 403. At this time, the limit block 404 can be taken out from the limit groove 403, and the box cover 5 can be disassembled from the surface of the positive terminal box 1, the intermediate terminal box 2, and the negative terminal box 3, and the components inside the positive terminal box 1, the intermediate terminal box 2, and the negative terminal box 3 can be inspected, repaired or replaced. Otherwise, the box cover 5 can be installed on the positive terminal box 1, the intermediate terminal box 2, and the negative terminal box 3.

[0023] The working principle of this easily disassembled photovoltaic junction box:

[0024] When in use, when it is necessary to remove the box cover 5 from the positive terminal box 1, the intermediate terminal box 2, and the negative terminal box 3, the staff first rotates the screw sleeve 408 to make the screw sleeve 408 move upward in the middle of the screw rod 406, so that the screw sleeve 408 is separated from the upper surface of the guide plate 401. At this time, the staff pulls the guide plate 401 upward to move the guide plate 401 upward in the middle of the screw 406, and at the same time can drive the fixing column 409 to move upward, so that the fixing column 409 is separated from the inside of the limiting groove 403, and at the same time can The fixing column 409 is disengaged from the fixing hole 405. At this time, the limit block 404 is not constrained in the limit groove 403. At this time, the limit block 404 can be taken out from the limit groove 403, and the box cover 5 can be disassembled from the surface of the positive terminal box 1, the intermediate terminal box 2, and the negative terminal box 3. The components inside the positive terminal box 1, the intermediate terminal box 2, and the negative terminal box 3 can be inspected, repaired or replaced. Otherwise, the box cover 5 can be installed on the positive terminal box 1, the intermediate terminal box 2, and the negative terminal box 3.

[0025] The above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A photovoltaic junction box that is easily disassembled and assembled, comprising a positive junction box (1), an intermediate junction box (2), and a negative junction box (3), characterized in that: The positive electrode junction box (1), the intermediate junction box (2), and the negative electrode junction box (3) are all provided with a positioning and mounting assembly (4); the surfaces of the positive electrode junction box (1), the intermediate junction box (2), and the negative electrode junction box (3) are all provided with a box cover (5) via the positioning and mounting assembly (4); and the front ends of the positive electrode junction box (1) and the negative electrode junction box (3) are both provided with a wire inlet (6).

2. The easily detachable photovoltaic junction box according to claim 1, characterized in that: A wire port pressure plate (7) is installed on one end surface of the box cover (5) installed on the positive terminal box (1) and the negative terminal box (3), and the wire port pressure plate (7) is located at the upper end of the wire inlet (6).

3. The easily detachable photovoltaic junction box according to claim 1, characterized in that: The positioning and mounting assembly (4) comprises a plurality of mounting plates (402), a stop block (404), and a plurality of screw rods (406); the plurality of mounting plates (402) are fixedly mounted on the inner walls of the positive terminal box (1), the intermediate terminal box (2), and the negative terminal box (3); the stop block (404) is fixedly mounted on the lower surface of the box cover (5); and the plurality of screw rods (406) are fixedly mounted on the surfaces of the positive terminal box (1), the intermediate terminal box (2), and the negative terminal box (3).

4. The easily detachable photovoltaic junction box according to claim 3, characterized in that: A plurality of the mounting plates (402) are provided with limiting grooves (403) on their surfaces, and the limiting blocks (404) are arranged inside the limiting grooves (403).

5. The easily detachable photovoltaic junction box according to claim 4, characterized in that: A plurality of fixing holes (405) are equidistantly formed through the surface of the limit block (404).

6. The easily detachable photovoltaic junction box according to claim 5, characterized in that: A guide plate (401) is slidably mounted in the middle of the screw rod (406), and a screw sleeve (408) is sleeved and mounted in the middle of the screw rod (406), wherein the screw sleeve (408) is located above the guide plate (401).

7. The easily detachable photovoltaic junction box according to claim 6, characterized in that: A plurality of fixing columns (409) are fixedly installed at equal intervals on the front surface of the guide plate (401), and a top plate (407) is fixedly installed on the top end of the screw rod (406).

8. The easily detachable photovoltaic junction box according to claim 7, characterized in that: The fixing column (409) movably passes through the limiting groove (403), and the top end of the fixing column (409) is arranged inside the fixing hole (405).

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