Photovoltaic module wiring device for photovoltaic power generation

Abstract

The utility model discloses a photovoltaic module wiring device for photovoltaic power generation, which comprises a junction box and threading boxes arranged on two sides of the junction box and formed by assembling a box body and a top cover, the threading boxes are communicated with the junction box, an elastic sheet is fixedly mounted on the inner wall of the box body, and arc-shaped structures for accommodating electric wires are integrally formed at two ends of the elastic sheet respectively. A pair of pressing plates is slidably installed in the box body, so that the pressing plates move downwards and press the elastic sheets to deform to press and clamp the wires. According to the utility model, the elastic sheet, the screw and the pressing plate are cooperated at two sides of the junction box to clamp a wire, the screw is rotated to accurately control the pressing degree of the pressing plate, the deformation of the elastic sheet is flexibly adjusted, the applicability of the device is improved, the arc-shaped structures at two ends of the elastic sheet can uniformly disperse the clamping force, the structure is simple, the operation is convenient, and the cost is low. The installation and maintenance time is greatly shortened, and the wiring efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic electrical connection technical field, concretely is photovoltaic module wiring device for photovoltaic power generation. BACKGROUND

[0002] In photovoltaic power generation system, the performance of photovoltaic module wiring device is crucial to power generation efficiency and system stability.

[0003] In actual outdoor application scene, photovoltaic equipment faces complex and changeable environmental factors for a long time, such as cable swing caused by strong wind, pulling force produced by rainstorm impact and vibration produced when equipment runs itself. Since there is lack of constraint to electric wire outside the box body, these external forces are extremely easy to directly act on the connecting part of photovoltaic junction box, leading to loose wiring terminal, electric wire falling off from the junction box, further intensifying the risk of loose line. UTILITARIAN CONTENT

[0004] The utility model aims at providing photovoltaic module wiring device for photovoltaic power generation to solve the problem of lack of external constraint of conventional photovoltaic junction box in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a photovoltaic module wiring device for photovoltaic power generation, comprising a junction box and a threading box composed of a box body and a top cover assembled on both sides of the junction box, the threading box is communicated with the junction box, the inner wall of the box body is fixedly installed with an elastic sheet, the both ends of the elastic sheet are integrally formed with arc structures for accommodating electric wires, a pair of pressing plates are slidably installed in the box body, so that the pressing plates move downward and press the elastic sheet to generate deformation to press and hold the electric wires.

[0006] Preferably, a pair of screw rods are rotatably installed in the box body, the top of the screw rod penetrates the top cover and is fixedly installed with a rotating disc, a sleeve is threadedly connected to the screw rod, and the pressing plate is fixedly connected with the sleeve.

[0007] Preferably, the bottom of the pressing plate is smoothly transitioned through rounded corners.

[0008] Preferably, the inner cavity side wall of the box body is fixedly installed with a positioning lug for accommodating the pressing plate.

[0009] Preferably, the end of the arc structure is integrally formed with an inclined section, and the inclined section is provided with a U-shaped groove for accommodating the screw rod.

[0010] Preferably, the elastic sheet is fixedly installed on the inner wall of the box body through a screw, and the central position of the elastic sheet is provided with a jack for accommodating the screw.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses a elastic sheet, screw rod and pressing plate are matched and clamp the electric wire on the both sides of junction box, and the degree of pressing of pressing plate can be controlled accurately by rotating screw rod, and then the deformation of elastic sheet is adjusted flexibly, thereby improve the applicability of device, and the design of arc structure of both ends of elastic sheet can evenly distribute the clamping force, to ensure the efficient transmission of electric energy and the safe and stable operation of system, simple structure, convenient operation, greatly shorten the installation and maintenance time, improve the wiring efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model;

[0014] Figure 2 It is the first cross-section of the utility model's threading box three-dimensional structure schematic diagram;

[0015] Figure 3 It is the second cross-section of the utility model's threading box three-dimensional structure schematic diagram;

[0016] Figure 4 It is the screw rod, screw sleeve and elastic sheet split three-dimensional structure schematic diagram of the utility model.

[0017] In the drawing: 1, junction box;2, box body;3, top cover;4, rotating disc;5, elastic sheet;6, screw rod;7, pressing plate;8, positioning lug;9, screw sleeve;10, arc structure;11, inclined section. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0019] Please refer to Figures 1-4The utility model provides a technical scheme: a photovoltaic module wiring device for photovoltaic power generation, including junction box 1 and the threaded box of the threaded box 2, top cover 3 assembly is equipped with in the both sides of junction box 1, threaded box 2 with junction box 1 intercommunication, the side wall of junction box 1 is equipped with the round hole (not shown in the drawing) for threading, the inner wall of threaded box 2 is fixedly installed with elastic sheet 5, elastic sheet 5 is fixedly installed on the inner wall of threaded box 2 by screw, the central position of elastic sheet 5 is equipped with the jack for accommodating screw, the inner wall of threaded box 2 is equipped with the mounting hole for screwing screw, the both ends of elastic sheet 5 are integrally formed with arc structure 10 for accommodating electric wire respectively, arc structure 10 can better fit electric wire, increase the contact area with electric wire, avoid the situation that local pressure is too large or too small, prevent the insulating layer or internal conductor of electric wire from being damaged due to local pressure being too large, prolong the service life of electric wire, a pair of pressing plate 7 is slidably installed in threaded box 2, the bottom of pressing plate 7 is smoothly transitioned through rounded corner, the purpose of thus setting is to reduce the friction of the contact with elastic sheet 5, so that pressing plate 7 moves downward and presses elastic sheet 5 to generate deformation and presses and holds electric wire, make electric wire be locked in threaded box 2 quickly and firmly, effectively prevent electric wire from loosening and shifting due to vibration, pulling and other external forces.

[0020] Please refer to Figure 3 And Figure 4 A pair of screw rod 6 is rotatably installed in threaded box 2, the top of screw rod 6 penetrates top cover 3 and is fixedly installed with rotating disc 4, the top of rotating disc 4 is equipped with a plurality of protrusions, the advantage of thus designing is to increase the friction between skin, screw rod 6 is threadedly connected with screw sleeve 9, pressing plate 7 is fixedly connected with screw sleeve 9, the inner cavity side wall of threaded box 2 is fixedly installed with positioning ridge 8 for accommodating pressing plate 7, the end of arc structure 10 is integrally formed with inclined section 11, inclined section 11 is equipped with U-shaped groove for accommodating screw rod 6,

[0021] By rotating rotating disc 4 on top cover 3, and cooperating screw rod 6 and screw sleeve 9 to drive pressing plate 7 to do vertical motion in positioning ridge 8, when pressing plate 7 moves downward and presses elastic sheet 5 and drives inclined section 11 to rotate downward, clamps the electric wire in it, when the electric wire needs to be taken out, rotating disc 4 is reversely rotated, makes pressing plate 7 away from elastic sheet 5, elastic sheet 5 restores deformation rapidly by relying on the elastic potential energy thereof, releases the clamping force on electric wire.

[0022] The utility model cooperates and clamps electric wire through elastic sheet 5, screw rod 6 and pressing plate 7 on the both sides of junction box 1, rotating screw rod 6 can accurately control the degree of pressing of pressing plate 7, and then flexibly adjusts the deformation of elastic sheet 5, thereby improving the applicability of the device, the design of arc structure 10 at the both ends of elastic sheet 5 can evenly disperse clamping force, simple structure, convenient operation, greatly shorten the installation and maintenance time, improve the wiring efficiency.

[0023] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0024] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic module wiring device for photovoltaic power generation, characterized in that: The device includes a junction box (1) and a cable tray assembled from a box body (2) and a top cover (3) on both sides of the junction box (1). The cable tray is connected to the junction box (1). An elastic sheet (5) is fixedly installed on the inner wall of the box body (2). The two ends of the elastic sheet (5) are integrally formed with an arc-shaped structure (10) for accommodating wires. A pair of pressure plates (7) are slidably installed in the box body (2) so that the pressure plates (7) move downward and compress the elastic sheet (5) to deform and clamp the wires.

2. The photovoltaic module wiring device for photovoltaic power generation according to claim 1, characterized in that: A pair of screws (6) are rotatably installed in the box (2). The top of the screws (6) passes through the top cover (3) and is fixedly installed with a turntable (4). A screw sleeve (9) is threaded onto the screws (6). The pressure plate (7) is fixedly connected to the screw sleeve (9).

3. The photovoltaic module wiring device for photovoltaic power generation according to claim 1, characterized in that: The bottom of the pressure plate (7) is smoothly transitioned by rounding the corners.

4. A photovoltaic module wiring device for photovoltaic power generation according to claim 1, characterized in that: The inner cavity sidewall of the box (2) is fixedly installed with positioning ribs (8) for accommodating the pressure plate (7).

5. A photovoltaic module wiring device for photovoltaic power generation according to claim 2, characterized in that: The end of the arc-shaped structure (10) is integrally formed with an inclined section (11), and the inclined section (11) is provided with a U-shaped groove for accommodating the screw (6).

6. A photovoltaic module wiring device for photovoltaic power generation according to claim 1, characterized in that: The elastic sheet (5) is fixedly installed on the inner wall of the box (2) by screws, and the elastic sheet (5) has a hole for receiving the screw at the center.

Images