Anti-arcing photovoltaic cell assembly junction box

Abstract

The utility model relates to an anti-arcing photovoltaic cell assembly junction box, which comprises a box body, the box body is of a long cubic structure, a wiring pipeline is transversely inserted into the head part of the box body, the wiring pipeline extends to the position of a wiring end head along the neck part of the box body, a built-in circuit of the wiring pipeline is communicated to a diode along the wiring end head, and the tail end of the diode is in butt joint with a wiring terminal; an arc chute is laid on the box body along the position of the terminal stud. The utility model provides an arc-proof photovoltaic junction box. The junction box adopts an internal mounting structure, an arc chute structure and a later manual limiting mounting structure, so that the internal mounting structure can be prevented from becoming bloated, the junction box is matched with the light and mounting structure, the mounting space can be planned, and meanwhile, the junction box can be matched with workers to finish the mounting process at regular time in the arc extinguishing process.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic junction boxes, and in particular relates to an arc-proof photovoltaic cell assembly junction box. Background Art

[0002] The protection function of the junction box includes three parts. The first is to prevent the hot spot effect through the bypass diode to protect the battery cells and components. The second is to use special material sealing design to prevent water and fire. The third is to reduce the operating temperature of the junction box through a special heat dissipation design, reduce the temperature of the bypass diode, and thus reduce the loss of component power due to its leakage current.

[0003] As for the photovoltaic junction box, the arc entangled by its own current will cause high heat damage to the internal structure, and under certain conditions, it may cause the photovoltaic junction box to be unable to be used normally. Therefore, the utility model provides an arc-proof photovoltaic junction box. The junction box adopts an internal rack-mounted structure and is equipped with an arc-extinguishing grid structure. Its later manual limit installation structure can prevent the internal installation structure from becoming bloated. With its own lightness and rack-mounted structure, it can save installation space. At the same time, during the arc-extinguishing process, it can cooperate with the staff to complete the installation process on time. Summary of the invention

[0004] In order to solve the above problems, the utility model discloses

[0005] In order to achieve the above object, the technical solution of the utility model is as follows:

[0006] An arc-proof photovoltaic cell assembly junction box, comprising a box body; the box body is a long cubic structure, a wiring pipeline is inserted transversely at the head of the box body, the wiring pipeline extends along the neck of the box body to the position of the wiring terminal, the built-in circuit of the wiring pipeline is connected to the diode along the wiring terminal, and the end of the diode is connected to the wiring terminal;

[0007] The box body is provided with an arc extinguishing grid along the wiring terminal position.

[0008] Furthermore, the box body is provided with a placement groove along the arc extinguishing grid to the wiring terminal.

[0009] Furthermore, a limit frame is installed on the horizontal frame at the top of the placement slot, and the limit frame retains the diode slot along the diode to the installation position of the wiring terminal.

[0010] Furthermore, four groups of limiting grooves are formed on the edge of the limiting frame, and the limiting grooves are in limiting contact with the arc-shaped edges protruding inwardly of the box body placement groove.

[0011] Furthermore, the limiting frame is provided with horizontal bars along the arc extinguishing grid position and the diode slot position, and the horizontal bars are in limiting contact with the arc extinguishing grid and the internal structure of the diode slot.

[0012] Furthermore, the limiting frame is composed of insulating material.

[0013] Furthermore, a shell is installed outside the box body, and a reinforcing rib is integrally connected to the shell along the end of the wiring pipeline.

[0014] The beneficial effects of the utility model are:

[0015] Compared with the prior art, the utility model provides an arc-proof photovoltaic junction box. The junction box adopts an internal frame-mounted structure and is equipped with an arc-extinguishing grid structure. Its later manual limit installation structure can prevent the internal installation structure from becoming bloated. With its own lightness and frame-mounted structure, it can save installation space. At the same time, during the arc-extinguishing process, it can cooperate with the staff to complete the installation process on time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the internal structure of an arc-proof photovoltaic cell assembly junction box.

[0017] Figure 2 This is an appearance diagram of the internal structure of an arc-proof photovoltaic cell assembly junction box of the utility model.

[0018] Figure 3 The utility model is a structural schematic diagram of an arc-extinguishing grid of an arc-proof photovoltaic cell assembly junction box.

[0019] List of Figure Symbols:

[0020] 1 is a wiring pipeline, 2 is a tube ring, 3 is a box body, 4 is a limit frame, 5 is a wiring terminal, 6 is a diode, 7 is an arc extinguishing grid, 8 is a shell, 9 is a reinforcing rib, 10 is a limit groove, 11 is a diode groove, and 12 is a horizontal bar. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations. It should be understood that the following specific implementations are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0022] like Figure 1 , Figure 2 and Figure 3As shown, an arc-proof photovoltaic cell assembly junction box comprises a box body; the box body 3 is a long cubic structure, a wiring pipe 1 is laterally inserted into the head of the box body 3, the wiring pipe 1 extends along the neck of the box body 3 to the wiring terminal position, the wiring pipe 1 has a built-in circuit connected to the diode 6 along the wiring terminal, and the end of the diode 6 is connected to the wiring terminal 5; wherein, the wiring pipe 1 is extended to the inside of the box body 3, the built-in line connector of the wiring pipe 1 cooperates with the necessary power-on equipment such as the power-on base along the wiring terminal position, and then the line connection process is completed by the diode 6 at the final line terminal and the wiring terminal.

[0023] The box body 3 is provided with an arc extinguishing grid 7 along the connection terminal. The arc extinguishing grid 7 eliminates the arc of the photovoltaic junction box after power failure, thereby protecting the junction box.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the box body 3 is provided with a placement groove along the arc extinguishing grid 7 to the wiring terminal 5. A limit frame 4 is installed horizontally on the top of the placement groove, and the limit frame 4 retains a diode groove 11 along the diode 6 to the installation position of the wiring terminal 5. The structure of the placement groove can be adapted to the corresponding model of electrical components.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, the edge of the limiting frame 4 is provided with four groups of limiting grooves 10, and the limiting grooves 10 are in limiting contact with the arc-shaped edges protruding inwardly of the placement groove of the box body 3. The installation structure of the limiting grooves 10 can limit the displacement of the limiting frame 4 in the horizontal direction.

[0026] like Figure 1 , Figure 2 and Figure 3 As shown, the limit frame 4 is provided with horizontal bars 12 along the arc extinguishing grid 7 and the diode slot 11, and the horizontal bars 12 are in limited contact with the arc extinguishing grid 7 and the internal structure of the diode slot 11. The horizontal bars 12 further limit the installation position of the electrical components and the arc extinguishing grid 7.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, the limiting frame 4 is made of insulating material.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, a shell 8 is installed outside the box body 3, and a reinforcing rib 9 is integrally connected to the shell 8 along the end of the wiring pipeline 1.

[0029] It should be noted that the above content only illustrates the technical idea of ​​the utility model and cannot be used to limit the protection scope of the utility model. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model. These improvements and modifications all fall within the protection scope of the claims of the utility model.

Claims

1. An arc-proof photovoltaic cell assembly junction box, comprising a box body; wherein: The box body (3) has a long cubic structure, a wiring pipe (1) is inserted transversely into the head of the box body (3), the wiring pipe (1) extends along the neck of the box body (3) to the position of the wiring terminal, the built-in circuit of the wiring pipe (1) is connected to the diode (6) along the wiring terminal, and the end of the diode (6) is butt-jointed with a wiring terminal (5); The box body (3) is provided with an arc extinguishing grid (7) along the position of the wiring terminal.

2. The arc-proof photovoltaic cell assembly junction box according to claim 1, characterized in that: The box body (3) is provided with a placement groove along the arc extinguishing grid (7) to the wiring terminal (5).

3. The arc-proof photovoltaic cell assembly junction box according to claim 2, characterized in that: A limit frame (4) is installed on the horizontal frame at the top of the placement slot, and the limit frame (4) retains a diode slot (11) along the diode (6) to the installation position of the wiring terminal (5).

4. The arc-proof photovoltaic cell assembly junction box according to claim 3 is characterized in that: Four groups of limiting grooves (10) are provided on the edge of the limiting frame (4), and the limiting grooves (10) are in limiting contact with the arc-shaped edges of the placement groove of the box body (3) that protrude inwardly.

5. The arc-proof photovoltaic cell assembly junction box according to claim 4, characterized in that: The limiting frame (4) is provided with a horizontal bar (12) along the position of the arc extinguishing grid (7) and the position of the diode slot (11), and the horizontal bar (12) is in limiting contact with the built-in structure of the arc extinguishing grid (7) and the diode slot (11).

6. The arc-proof photovoltaic cell assembly junction box according to claim 5, characterized in that: The limiting frame (4) is made of insulating material.

7. The arc-proof photovoltaic cell assembly junction box according to claim 1, characterized in that: An outer shell (8) is installed outside the box body (3), and a reinforcing rib (9) is integrally connected to the outer shell (8) along the end of the wiring pipeline (1).

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