Photovoltaic direct current junction box module square array power test connecting device

Abstract

The utility model discloses a photovoltaic direct current conflux box module square array power test connecting device, including connecting post and the binding post of connecting post side connection, the connecting post is equal with the fuse size of conflux box, and the one end of connecting post is conductive end, and the other end is insulating end, the end of binding post is equipped with the jack, and the outer surface of binding post is insulating surface, and the jack is electrically connected with the conductive end through the conductive part of binding post inside. The utility model discloses can directly replace the fuse, and the step of repeatedly disassembling conflux box cable is saved, and directly access test cable copper terminal is completed test, and the test time is shortened significantly, and the artificial cost and equipment wear and tear risk are reduced.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic DC combiner box testing technology, and in particular to a photovoltaic DC combiner box module array power testing connection device. Background Technology

[0002] Photovoltaic array power testing is a core component ensuring the efficient operation of power plants. Especially with the widespread adoption of 1500V high-voltage power plants, its accuracy and efficiency directly impact system safety and profitability. Current testing methods require disassembling the DC combiner box cables and connecting the test cable copper terminals, a cumbersome process. Furthermore, after testing, the DC combiner box cables must be reconnected, which involves a large number of cables, increasing the risk of wiring errors or cable damage, thus hindering testing efficiency and maintenance cycles. Utility Model Content

[0003] To address the technical problems of existing technologies that require disassembling the DC section combiner box cable and connecting the copper terminals of the test cable during combiner box power testing, which is cumbersome and prone to wiring errors or cable damage, this utility model provides a photovoltaic DC combiner box module array power testing connection device to solve the above problems.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a photovoltaic DC combiner box module array power test connection device, including a connecting column and a terminal block connected to the side of the connecting column. The connecting column is the same size as the fuse of the combiner box. One end of the connecting column is a conductive end and the other end is an insulating end. The end of the terminal block is provided with a socket. The outer surface of the terminal block is an insulating surface. The socket is electrically connected to the conductive end through the conductive part inside the terminal block.

[0005] In an optional embodiment of this utility model, both the terminal block and the connecting post are cylindrical structures.

[0006] In an optional embodiment of this utility model, an insulating handle is provided at the end of the terminal block away from the connecting post, and the insulating handle has a through hole that communicates with the socket and allows the test cable connector to pass through.

[0007] In an optional embodiment of this utility model, the terminal block includes a conductive part and an insulating layer surrounding the conductive part, the insulating handle is connected to the insulating layer, and the socket is located at the end of the conductive part.

[0008] In an optional embodiment of this utility model, the insulating handle is U-shaped, and the surface of the insulating handle is perpendicular to the central axis of both the connecting post and the terminal post.

[0009] In an optional embodiment of this utility model, the connecting post is made of conductive material, and an insulating cap is installed on the insulating end of the connecting post.

[0010] In an optional embodiment of this utility model, the insulating end of the connecting post and the opposite surface of the insulating cap have a cross groove and a cross protrusion that interlock.

[0011] In an optional embodiment of this utility model, the terminal block and the connecting post are arranged perpendicularly.

[0012] In an optional embodiment of this utility model, the two ends of the insulating handle are bent toward the connecting post.

[0013] The beneficial effects of this utility model are: (1) This utility model can directly replace the fuse, eliminating the need for repeated disassembly and assembly of the combiner box cable. It can directly connect to the copper terminal of the test cable to complete the test, significantly shortening the test time and reducing labor costs and equipment wear risk.

[0014] (2) The present invention connects an insulating handle to the end of the terminal block and also serves as a plug, which is convenient for disassembly and assembly and easy for plugging in copper terminals.

[0015] (3) This utility model has a simple structure and low production cost. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram showing the location of the fuse inside the circuit breaker; Figure 2 This is a perspective view of a specific embodiment of the photovoltaic DC combiner box module array power testing and connection device described in this utility model; Figure 3 This is an exploded view of the photovoltaic DC combiner box module array power testing and connection device described in this utility model; Figure 4 This is a top view (partial cross-section) of the photovoltaic DC combiner box module array power testing and connection device described in this utility model.

[0018] In the diagram, 1 is the connecting post, 101 is the conductive end, 102 is the insulating end, 2 is the terminal post, 201 is the conductive part, 202 is the insulating layer, 3 is the socket, 4 is the fuse, 5 is the circuit breaker, 6 is the insulating handle, 601 is the through hole, 7 is the insulating cap, 8 is the cross groove, and 9 is the cross protrusion. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] Example 1 like Figures 2-4 As shown, a photovoltaic DC combiner box module array power test connection device includes a connecting post 1 and a terminal post 2 connected to the side of the connecting post 1. The connecting post 1 is the same size as the fuse 5 of the combiner box. One end of the connecting post 1 is a conductive end 101 and the other end is an insulating end 102. The end of the terminal post 2 is provided with a socket 3. The outer surface of the terminal post 2 is an insulating surface. The socket 3 is electrically connected to the conductive end 101 through the conductive part 201 inside the terminal post 2.

[0021] like Figure 1 As shown, the fuse 5 in the combiner box is located inside the fuse 4. The upper and lower ends of the fuse 4 each have multiple cables, with the cable connectors corresponding to the fuses 5 inside the fuse 4. In existing technology, the cables at the upper end of the fuse 4 are removed before connecting the copper terminals of the test cables. However, using the connection device described in this invention, only the fuse 5 corresponding to the circuit to be tested needs to be removed, and then the connection device is inserted into the reserved position after the fuse 5 has been removed. The connecting post 1 is inserted into the fuse 4, and both ends of the connecting post 1 contact the cable connectors at both ends of the fuse 4. Since one end of the connecting post 1 is conductive and the other end is insulated, the step of removing the cables at the upper end of the fuse 4 can be eliminated. The copper terminals of the test cables can be directly connected to the cables at the lower end of the fuse 4 through the socket 3, eliminating the need for frequent wire disconnection and reconnection and avoiding wiring errors. This significantly shortens testing time and reduces labor costs and equipment wear risks. For businesses, this innovation not only optimizes production processes and reduces delays and chaos, but also ensures the stability of the testing cycle and improves the efficiency of power plant lifecycle management.

[0022] In a preferred embodiment, both terminal 2 and connecting post 1 are cylindrical structures.

[0023] Terminal 2 can be arranged at an angle to connecting post 1, preferably terminal 2 is perpendicular to connecting post 1.

[0024] Example 2 Based on the above embodiments, such as Figure 2 and Figure 4 The terminal 2 shown is also provided with an insulating handle 6 at the end away from the connecting post 1. The insulating handle 6 has a through hole 601 that communicates with the socket 3 and allows the test cable connector to pass through. The insulating handle 6 facilitates the insertion and removal of the connecting device, while also serving as a plug. It has a simple structure, is easy to operate, and is highly safe.

[0025] In a preferred embodiment, the insulating handle 6 is U-shaped, and the surface of the insulating handle 6 is perpendicular to the central axis of both the connecting post 1 and the terminal post 2. From the perspective of operational force, both ends of the insulating handle 6 are preferably bent towards the connecting post 1.

[0026] Structure of terminal 2: Since terminal 2 is close to the operating end, its exterior needs to be insulated. Specifically, it includes a conductive part 201 and an insulating layer 202 that wraps around the conductive part 201. The insulating handle 6 is connected to the insulating layer 202, and the socket 3 is located at the end of the conductive part 201.

[0027] The connecting post 1 does not require manual handling during installation and can be made of conductive material. A removable insulating cap 7 is installed on the insulating end 102 of the connecting post 1. Figure 3 As shown, the insulating end 102 of the connecting post 1 and the opposite surface of the insulating cap 7 have a cross groove 8 and a cross protrusion 9 that are mutually inserted and matched.

[0028] In this specification, the illustrative expressions of the terms do not necessarily refer to the same embodiments. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments.

[0029] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A photovoltaic DC combiner box module array power testing and connection device, characterized in that: It includes a connecting post and a terminal block connected to the side of the connecting post. The connecting post is the same size as the fuse in the combiner box. One end of the connecting post is a conductive end and the other end is an insulating end. The end of the terminal block is provided with a socket. The outer surface of the terminal block is an insulating surface. The socket is electrically connected to the conductive end through the conductive part inside the terminal block.

2. The photovoltaic DC combiner box module array power testing and connection device according to claim 1, characterized in that: Both the terminal block and the connecting post are cylindrical in shape.

3. The photovoltaic DC combiner box module array power testing and connection device according to claim 1, characterized in that: An insulating handle is provided at the end of the terminal block away from the connecting post. The insulating handle has a through hole that communicates with the socket and allows the test cable connector to pass through.

4. The photovoltaic DC combiner box module array power testing and connection device according to claim 3, characterized in that: The terminal block includes a conductive part and an insulating layer surrounding the conductive part. The insulating handle is connected to the insulating layer, and the socket is located at the end of the conductive part.

5. The photovoltaic DC combiner box module array power testing and connection device according to claim 4, characterized in that: The insulating handle is U-shaped, and the surface of the insulating handle is perpendicular to the central axis of both the connecting post and the terminal post.

6. The photovoltaic DC combiner box module array power testing and connection device according to claim 1, characterized in that: The connecting post is made of conductive material, and an insulating cap is installed on the insulating end of the connecting post.

7. The photovoltaic DC combiner box module array power testing and connection device according to claim 6, characterized in that: The insulating end of the connecting post and the opposite surface of the insulating cap have cross grooves and cross protrusions that interlock.

8. The photovoltaic DC combiner box module array power testing and connection device according to claim 1, characterized in that: The terminals and connecting posts are arranged perpendicularly.

9. The photovoltaic DC combiner box module array power testing and connection device according to claim 5, characterized in that: The two ends of the insulating handle are bent toward the connecting post.

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