Photovoltaic junction box transmission device

Abstract

The utility model discloses a photovoltaic junction box transmission device, which relates to the field of photovoltaic junction box transmission devices and comprises a junction box body and a cable connecting and mounting module, and mounting blocks are symmetrically mounted on the left side and the right side of the junction box body. According to the photovoltaic junction box transmission device, through arrangement of a heat conduction rod and a heat conduction block, when a cable connection installation module carries out auxiliary conductive operation, heat generated during operation of a conductive part can be timely dissipated to the outside of a junction box body, and then heat dissipation fins are used for carrying out rapid heat dissipation treatment on the dissipated heat; in this way, the heat dissipation efficiency of the transmission device is improved, and the situation that the service life of the transmission device and follow-up conductive operation are interfered due to the fact that the internal temperature of the transmission device rapidly rises along with the increase of the operation time when the transmission device conducts conductive transmission is avoided. And through the arrangement of the insulating bearing frame, the insulating heat dissipation protection net and the annular insulating protection sleeve, the heat dissipation assembly can also provide good leakage protection during heat dissipation.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic junction box transmission devices, in particular to a photovoltaic junction box transmission device. Background Art

[0002] The photovoltaic junction box transmission device is an important component in the photovoltaic power generation system. It is mainly used to connect the cables between photovoltaic modules and inverters, and at the same time protect the cables and electrical connections. The device is usually installed on the back or side of the photovoltaic module to ensure that the current is safely and effectively transmitted from the photovoltaic module to the inverter, thereby converting solar energy into electrical energy.

[0003] However, the current photovoltaic junction box transmission device still has some shortcomings. For example, in order to improve its moisture-proof and dust-proof effect, the existing photovoltaic junction box transmission device makes its interior in a relatively sealed state, resulting in low internal heat dissipation efficiency. As a result, when the transmission device is performing conductive transmission, its internal temperature will rise rapidly with the increase of operating time, which brings certain interference to the service life of the transmission device and subsequent conductive operation, and thus there are certain usage defects.

[0004] Therefore, it is urgent to improve this shortcoming. The utility model studies and improves the existing structural deficiencies and provides a photovoltaic junction box transmission device. Utility Model Content

[0005] The purpose of the utility model is to provide a photovoltaic junction box transmission device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic junction box transmission device, comprising a junction box body and a cable connection and installation module, wherein mounting blocks are symmetrically installed on the left and right sides of the junction box body, and cable seats are symmetrically embedded and installed on the left and right sides of the front side of the junction box body, the cable connection and installation module is fixedly installed on the bottom inner surface of the junction box body, and heat dissipation components are symmetrically installed on the left and right sides of the junction box body, and an annular insulating protective sleeve is embedded and fixedly installed inside the side of the junction box body, and a sealing cover is snap-fitted on the top of the junction box body, and a drying component is fixedly installed on the bottom of the sealing cover.

[0007] Furthermore, the heat dissipation assembly includes an insulating carrier, heat dissipation fins, a heat-conducting rod, a heat-conducting block and an insulating heat dissipation protective net, and the heat dissipation fins are fixedly installed on the inner surface of the insulating carrier, and the heat-conducting rod is installed through the inside of the heat dissipation fins, and the end of the heat-conducting rod is fixedly connected to the heat-conducting block, and the inner side of the heat-conducting block is bonded to the outer surface of the conductive part of the cable connection and installation module, and the insulating heat dissipation protective net is snap-fitted on the outer surface of the insulating carrier.

[0008] Furthermore, the heat dissipation fins are fixedly installed on the inner surface of the insulating support frame at equal distances, and the inner side of the insulating support frame is fixedly connected to the outer surface of the junction box body, and the heat dissipation fins form a fixed structure with the junction box body through the insulating support frame.

[0009] Furthermore, the bottom of the sealing cover is closely connected to the top of the junction box body, and the sealing cover and the junction box body form a clamping structure through a clamping plate.

[0010] Furthermore, the drying component includes a desiccant carrier box, a dustproof net, a limiting groove, a sealing plate and a connecting block, and the dustproof nets are symmetrically embedded and installed on the front and rear sides of the desiccant carrier box, and a limiting groove is provided at the bottom of the desiccant carrier box, and a sealing plate is clamped and installed at the bottom of the desiccant carrier box, and connecting blocks are symmetrically installed on the left and right sides of the sealing plate, and the connecting block is connected to the desiccant carrier box by bolts.

[0011] Furthermore, the top of the desiccant carrying box is fixedly connected to the bottom of the sealing cover, and the desiccant carrying box and the sealing cover form a fixed structure, and the desiccant carrying box is arranged in parallel and directly above the cable connection and installation module.

[0012] Furthermore, the outer dimensions of the connection block are completely consistent with the inner dimensions of the limiting groove, and the connection block forms a snap-fit ​​structure with the desiccant carrying box through the limiting groove.

[0013] The utility model provides a photovoltaic junction box transmission device, which has the following beneficial effects:

[0014] 1. The utility model provides a heat-conducting rod and a heat-conducting block, so that the cable connection installation module can promptly lead the heat generated during the operation of the conductive part to the outside of the junction box body when performing auxiliary conductive operations, and then quickly dissipate the heat through the heat dissipation fins, so as to speed up the heat dissipation efficiency of the transmission device, thereby avoiding the situation in which the internal temperature of the transmission device rises rapidly with the increase of the operating time during conductive transmission, causing interference to the service life of the transmission device and subsequent conductive operation, and through the provision of an insulating support frame, an insulating heat dissipation protection net and an annular insulating protective sleeve, the heat dissipation component can also provide good leakage protection when dissipating heat.

[0015] 2. The utility model provides a dustproof net so that the gas in the junction box can enter the interior of the desiccant carrier box for circulation, so that the desiccant in the desiccant carrier box automatically dehumidifies the air entering the desiccant carrier box, thereby ensuring that the junction box body can always be in a dry state, and through the provided sealing plate and connecting block, the desiccant in the desiccant carrier box is convenient for the staff to regularly and quickly replace, thereby ensuring that the interior of the transmission device can always be in a dry state during subsequent operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a photovoltaic junction box transmission device of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall split three-dimensional structure of a photovoltaic junction box transmission device of the utility model;

[0018] Figure 3 The utility model is a photovoltaic junction box transmission device Figure 2 A schematic diagram of the enlarged structure in the middle.

[0019] In the figure: 1. Junction box body; 2. Mounting block; 3. Cable seat; 4. Cable connection and mounting module; 5. Heat dissipation assembly; 51. Insulation carrier frame; 52. Heat dissipation fins; 53. Heat conduction rod; 54. Heat conduction block; 55. Insulation heat dissipation protection net; 6. Annular insulation protection sleeve; 7. Sealing cover; 8. Drying assembly; 81. Desiccant carrier box; 82. Dustproof net; 83. Limiting groove; 84. Sealing plate; 85. Connection block. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] like Figure 1-Figure 3As shown, a photovoltaic junction box transmission device includes a junction box body 1 and a cable connection and installation module 4, the left and right sides of the junction box body 1 are symmetrically installed with installation blocks 2, and the left and right sides of the front side of the junction box body 1 are symmetrically embedded with cable seats 3, the cable connection and installation module 4 is fixedly installed on the bottom inner surface of the junction box body 1, and the left and right sides of the junction box body 1 are symmetrically installed with heat dissipation components 5, the heat dissipation components 5 include an insulating carrier frame 51, heat dissipation fins 52, a heat conducting rod 53, a heat conducting block 54 and an insulating heat dissipation protection net 55, and the inner surface of the insulating carrier frame 51 is fixedly installed with heat dissipation fins 52, the heat dissipation fins 52 are fixedly installed on the inner surface of the insulating carrier frame 51 at an equal distance, and the inner side of the insulating carrier frame 51 is fixedly connected to the outer surface of the junction box body 1, and the heat dissipation fins 52 form a fixed structure with the junction box body 1 through the insulating carrier frame 51, and the heat dissipation fins 52 and The junction box body 1 ensures that the heat dissipation fins 52 will not become loose during automatic heat dissipation, and a heat-conducting rod 53 is installed inside the heat dissipation fin 52, and a heat-conducting block 54 is fixedly connected to the end of the heat-conducting rod 53, and the inner side of the heat-conducting block 54 is fitted and connected to the outer surface of the conductive part of the cable connection and installation module 4, and an insulating heat dissipation protection net 55 is installed on the outer surface of the insulating carrier frame 51, and an annular insulating protective sleeve 6 is embedded and fixedly installed inside the side of the junction box body 1, and a sealing cover 7 is installed on the top of the junction box body 1, and the bottom of the sealing cover 7 is fitted and connected to the top of the junction box body 1, and the sealing cover 7 and the junction box body 1 form a clamping structure through a clamping plate. By setting the sealing cover 7 and the junction box body 1 in a clamping structure, it is convenient for the staff to quickly disassemble and assemble the sealing cover 7 and the junction box body 1, thereby providing convenience for the staff to replace the desiccant and install the cable.

[0022] like Figure 1 and Figure 2As shown, the left and right sides of the junction box body 1 are symmetrically installed with mounting blocks 2, and the left and right sides of the front side of the junction box body 1 are symmetrically embedded with cable seats 3, the cable connection and installation module 4 is fixedly installed on the bottom inner surface of the junction box body 1, and the top of the junction box body 1 is clamped with a sealing cover 7, and the bottom of the sealing cover 7 is fixedly installed with a drying component 8, the drying component 8 includes a desiccant carrier box 81, a dustproof net 82, a limiting groove 83, a sealing plate 84 and a connecting block 85, and the front and rear sides of the desiccant carrier box 81 are symmetrically embedded with a dustproof net 82, the top of the desiccant carrier box 81 is fixedly connected to the bottom of the sealing cover 7, and the desiccant carrier box 81 and the sealing cover 7 form a fixed The desiccant carrying box 81 has a fixed structure, and the desiccant carrying box 81 is arranged in parallel just above the cable connection installation module 4, and a limiting groove 83 is provided at the bottom of the desiccant carrying box 81, and a sealing plate 84 is installed at the bottom of the desiccant carrying box 81 in a snap-fit ​​manner, and connecting blocks 85 are symmetrically installed on the left and right sides of the sealing plate 84, and the external dimensions of the connecting block 85 are completely consistent with the internal dimensions of the limiting groove 83, and the connecting block 85 forms a snap-fit ​​structure with the desiccant carrying box 81 through the limiting groove 83. By setting the connecting block 85 and the desiccant carrying box 81 in a snap-fit ​​structure, the sealing plate 84 is convenient for the staff to quickly disassemble and assemble, and the connecting block 85 and the desiccant carrying box 81 are connected by bolts.

[0023] In summary, the photovoltaic junction box transmission device is firstly based on Figures 1 to 3 As shown in the structure, the staff pours the desiccant into the interior of the desiccant carrier box 81, and then installs the connecting block 85 into the interior of the desiccant carrier box 81 through the cooperation of the limiting groove 83, so as to achieve the purpose of preliminary installation of the sealing plate 84, and then the staff rotates the bolts so that the connecting block 85 and the desiccant carrier box 81 are fixedly connected, and then the staff inserts the cable into the interior of the junction box body 1 through the cable seat 3, and then completes the cable installation work through the cable connection installation module 4, and then the staff snaps the sealing cover 7 and installs it on the top of the junction box body 1 and rotates the bolts to complete the sealing work of the junction box. When the transmission device is running, the conductive part of the cable connection installation module 4 automatically generates heat. At this time, the heat of the conductive part is transported out of the interior of the junction box body 1 through the cooperation of the heat conducting rod 53 and the heat conducting block 54, and then the heat dissipation is quickly carried out through the heat dissipation fins 52, so as to ensure that the internal temperature of the transmission device will not rise rapidly when transmitting current.

[0024] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A photovoltaic junction box transmission device, comprising a junction box body (1) and a cable connection and installation module (4), characterized in that: The junction box body (1) is symmetrically provided with mounting blocks (2), and the front side of the junction box body (1) is symmetrically provided with cable seats (3), the cable connection mounting module (4) is fixedly provided on the inner surface of the bottom of the junction box body (1), and the left and right sides of the junction box body (1) are symmetrically provided with heat dissipation components (5), and the side of the junction box body (1) is fixedly provided with an annular insulating protective sleeve (6), and the top of the junction box body (1) is clamped with a sealing cover (7), and the bottom of the sealing cover (7) is fixedly provided with a drying component (8).

2. A photovoltaic junction box transmission device according to claim 1, characterized in that: The heat dissipation assembly (5) comprises an insulating support frame (51), heat dissipation fins (52), a heat-conducting rod (53), a heat-conducting block (54) and an insulating heat dissipation protection net (55), and the heat dissipation fins (52) are fixedly installed on the inner surface of the insulating support frame (51), and the heat-conducting rod (53) is installed through the inside of the heat dissipation fins (52), and the end of the heat-conducting rod (53) is fixedly connected to the heat-conducting block (54), and the inner side of the heat-conducting block (54) is bonded to the outer surface of the conductive part of the cable connection installation module (4), and the insulating heat dissipation protection net (55) is snap-fitted to the outer surface of the insulating support frame (51).

3. A photovoltaic junction box transmission device according to claim 2, characterized in that: The heat dissipation fins (52) are fixedly mounted at equal distances on the inner surface of the insulating support frame (51), and the inner side of the insulating support frame (51) is fixedly connected to the outer surface of the junction box body (1), and the heat dissipation fins (52) form a fixed structure with the junction box body (1) through the insulating support frame (51).

4. A photovoltaic junction box transmission device according to claim 1, characterized in that: The bottom of the sealing cover (7) is closely connected to the top of the junction box body (1), and the sealing cover (7) and the junction box body (1) form a snap-fit ​​structure via a snap-fit ​​plate.

5. A photovoltaic junction box transmission device according to claim 1, characterized in that: The drying assembly (8) comprises a desiccant carrying box (81), a dustproof net (82), a limiting groove (83), a sealing plate (84) and a connecting block (85), and the dustproof net (82) is symmetrically embedded and installed on the front and rear sides of the desiccant carrying box (81), and the limiting groove (83) is provided at the bottom of the desiccant carrying box (81), and the sealing plate (84) is clamped and installed at the bottom of the desiccant carrying box (81), and the connecting blocks (85) are symmetrically installed on the left and right sides of the sealing plate (84), and the connecting blocks (85) are connected to the desiccant carrying box (81) by bolts.

6. A photovoltaic junction box transmission device according to claim 5, characterized in that: The top of the desiccant carrying box (81) is fixedly connected to the bottom of the sealing cover (7), and the desiccant carrying box (81) and the sealing cover (7) form a fixed structure, and the desiccant carrying box (81) is arranged in parallel just above the cable connection installation module (4).

7. A photovoltaic junction box transmission device according to claim 5, characterized in that: The external dimensions of the connection block (85) are completely consistent with the internal dimensions of the limiting groove (83), and the connection block (85) forms a snap-fit ​​structure with the desiccant carrying box (81) via the limiting groove (83).

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