Junction box for solar voltage output

Abstract

The utility model relates to the technical field of solar energy, and discloses a junction box used for solar energy voltage output, comprising a box body, the top end of the box body is provided with a cover body, the inner bottom end of the box body is provided with a plurality of first fixing blocks, and the top ends of the first fixing blocks are fixedly connected with wiring terminals through bolts. A wiring terminal is arranged in the box body, one end of the wiring terminal is connected with a wiring block, through grooves are symmetrically formed in the bottom end in the box body, solar cables are arranged in the through grooves, the other ends of the solar cables are fixedly connected to the wiring block, and a fixing mechanism is arranged on the outer side of the wiring block. By arranging the fixing mechanism, the solar cable can be prevented from being separated from the wiring terminal when the junction box is subjected to external force, maintenance personnel are not needed for maintenance, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of solar energy, in particular to a junction box used for solar energy voltage output. Background Art

[0002] The photovoltaic junction box is a connection device between the solar cell array composed of solar cell modules and the solar charging control device. Its main function is to connect and protect solar photovoltaic modules, connect the power generated by solar cells to external lines, and conduct the current generated by photovoltaic modules.

[0003] The existing junction box is connected to the solar cable through the terminal block. When the junction box is subjected to external force, the solar cable is easily separated from the terminal block, causing the device to lose power, requiring maintenance personnel to repair it, which increases maintenance costs. Utility Model Content

[0004] The purpose of the utility model is to provide a junction box for solar voltage output to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a junction box for solar voltage output, comprising a box body, a cover body is arranged at the top of the box body, a plurality of first fixing blocks are arranged at the inner bottom end of the box body, a wiring terminal is fixedly connected to the top end of the first fixing block by bolts, one end of the wiring terminal is connected to the wiring block, through grooves are symmetrically opened at the inner bottom end of the box body, a solar cable is arranged inside the through groove, the other end of the solar cable is fixedly connected to the wiring block, and a fixing mechanism is arranged on the outer side of the wiring block.

[0006] The following improvements are made in the present application scheme: the fixing mechanism includes a second fixing block fixedly arranged at the bottom end of the box body, a groove is opened at the top of the second fixing block, the inside of the groove is rotatably connected with a positive and negative screw rod, the outer surface of the positive and negative screw rod is symmetrically threadedly connected with a movable plate, the first fixing plate and the second fixing plate are arranged on opposite sides of the two movable plates, the wiring block is arranged between the first fixing plate and the second fixing plate, and one end of the positive and negative screw rod passes through the second fixing block and is fixedly connected with a knob.

[0007] The following improvement is made in the present application: a through hole is provided on one side of the box body, a sealing ring is provided inside the through hole, a cable is inserted inside the sealing ring, one end of the cable is fixedly connected to a connector, and the other end is fixedly connected to the wiring block.

[0008] The following improvement is made in the solution of the present application: two solar cables are provided, and the solar cable is provided with two first secondary lines, and the first secondary lines are both connected to the junction block.

[0009] The following improvement is made in the solution of the present application: two cables are provided, two second secondary wires are provided inside the cable, and both of the second secondary wires are connected to the wiring terminal.

[0010] The following improvement is made in the solution of the present application: four connecting terminals are provided.

[0011] The following improvement is made in the solution of the present application: the top of the box body is connected to the cover body via a plurality of fixing bolts, the top of the box body is provided with a plurality of fixing holes, and the fixing bolts are provided inside the fixing holes.

[0012] The following improvement is made in the solution of the present application: a connecting groove is provided at the top of the cover body, and a heat sink is provided inside the connecting groove.

[0013] Compared with the prior art, the utility model provides a junction box for solar voltage output, which has the following beneficial effects:

[0014] The junction box for solar voltage output is provided with a fixing mechanism. After the junction block is fixedly connected to the junction terminal, the knob is turned, and the knob drives the positive and negative screws to rotate. The positive and negative screws drive the two movable plates to approach each other, so that the first fixing plate and the second fixing plate fix the junction block, thereby improving the stability of the connection between the junction block and the junction terminal, and preventing the solar power cable from being separated from the junction terminal when the junction box is subjected to external force, without the need for maintenance personnel to perform maintenance, thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0016] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0017] Figure 2 It is a top view of the internal structure of the box body of the utility model;

[0018] Figure 3 It is a schematic diagram of the fixing mechanism structure of the utility model.

[0019] In the figure, 1 is a box body; 2 is a cover body; 3 is a first fixing block; 4 is a wiring terminal; 5 is a wiring block; 6 is a through slot; 7 is a solar cable; 8 is a second fixing block; 9 is a groove; 10 is a positive and negative screw rod; 11 is a moving plate; 12 is a first fixing plate; 13 is a second fixing plate; 14 is a knob; 15 is a through hole; 16 is a sealing ring; 17 is a cable; 18 is a connector; 19 is a first auxiliary line; 20 is a second auxiliary line; 21 is a fixing bolt; 22 is a fixing hole; 23 is a connecting slot; 24 is a heat sink. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in 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 in 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.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Example

[0023] like Figure 1-3 As shown, a junction box for solar voltage output includes a box body 1, a cover body 2 is arranged on the top of the box body 1, a plurality of first fixing blocks 3 are arranged on the inner bottom of the box body 1, a wiring terminal 4 is fixedly connected to the top of the first fixing block 3 by bolts, four wiring terminals 4 are arranged, one end of the wiring terminal 4 is connected to the wiring block 5, through grooves 6 are symmetrically opened on the inner bottom of the box body 1, a solar cable 7 is arranged inside the through groove 6, the other end of the solar cable 7 is fixedly connected to the wiring block 5, and a fixing mechanism is arranged on the outer side of the wiring block 5.

[0024] The fixing mechanism includes a second fixing block 8 fixedly arranged at the bottom end of the box body 1, and a groove 9 is opened at the top of the second fixing block 8. The inside of the groove 9 is rotatably connected with a positive and negative screw rod 10, and the outer surface of the positive and negative screw rod 10 is symmetrically threadedly connected with a movable plate 11. The opposite sides of the two movable plates 11 are provided with a first fixing plate 12 and a second fixing plate 13, and a wiring block 5 is arranged between the first fixing plate 12 and the second fixing plate 13. One end of the positive and negative screw rod 10 passes through the second fixing block 8 and is fixedly connected with a knob 14. After the wiring block 5 is fixedly connected to the wiring terminal 4, the knob 14 is rotated, and the knob 14 drives the positive and negative screw rod 10 to rotate, and the positive and negative screw rod 10 drives the two movable plates 11 to approach each other, so that the first fixing plate 12 and the second fixing plate 13 fix the wiring block 5, thereby improving the stability of the connection between the wiring block 5 and the wiring terminal 4, and can prevent the solar cable 7 from being separated from the wiring terminal 4 when the wiring box is subjected to external force, without the need for maintenance personnel to perform maintenance, thereby reducing maintenance costs.

[0025] A through hole 15 is provided on one side of the box body 1 , a sealing ring 16 is provided inside the through hole 15 , a cable 17 is inserted inside the sealing ring 16 , one end of the cable 17 is fixedly connected to a connector 18 , and the other end is fixedly connected to the wiring block 5 .

[0026] There are two solar cables 7 , each of which has two first sub-wires 19 , both of which are connected to the junction block 5 ; there are two cables 17 , each of which has two second sub-wires 20 , both of which are connected to the junction terminal 4 .

[0027] The top of the box body 1 is connected to the cover body 2 via a plurality of fixing bolts 21 . The top of the box body 1 is provided with a plurality of fixing holes 22 , and the fixing bolts 21 are provided inside the fixing holes 22 .

[0028] A connection groove 23 is provided at the top of the cover body 2 , and a heat sink 24 is provided inside the connection groove 23 , and the heat inside the box body 1 is dissipated through the heat sink 24 .

Claims

1. A junction box for solar voltage output, comprising a box body (1), characterized in that: The top of the box body (1) is provided with a cover body (2), the bottom of the box body (1) is provided with a plurality of first fixing blocks (3), the top of the first fixing block (3) is fixedly connected to a wiring terminal (4) by means of bolts, one end of the wiring terminal (4) is connected to a wiring block (5), the bottom of the box body (1) is symmetrically provided with through grooves (6), a solar cable (7) is provided inside the through grooves (6), the other end of the solar cable (7) is fixedly connected to the wiring block (5), and a fixing mechanism is provided on the outside of the wiring block (5).

2. A junction box for solar voltage output according to claim 1, characterized in that: The fixing mechanism comprises a second fixing block (8) fixedly arranged at the bottom end of the box body (1), a groove (9) being provided at the top end of the second fixing block (8), a forward and reverse screw rod (10) being rotatably connected inside the groove (9), a movable plate (11) being symmetrically threadedly connected to the outer surface of the forward and reverse screw rod (10), a first fixing plate (12) and a second fixing plate (13) being provided on opposite sides of the two movable plates (11), the wiring block (5) being provided between the first fixing plate (12) and the second fixing plate (13), and one end of the forward and reverse screw rod (10) passing through the second fixing block (8) and being fixedly connected to a knob (14).

3. A junction box for solar voltage output according to claim 1, characterized in that: A through hole (15) is provided on one side of the box body (1), a sealing ring (16) is provided inside the through hole (15), a cable (17) is inserted inside the sealing ring (16), one end of the cable (17) is fixedly connected to a connector (18), and the other end is fixedly connected to the wiring block (5).

4. A junction box for solar voltage output according to claim 1, characterized in that: Two solar cables (7) are provided, and the solar cables (7) are provided with two first secondary lines (19), and the first secondary lines (19) are both connected to the junction block (5).

5. A junction box for solar voltage output according to claim 3, characterized in that: Two cables (17) are provided, and two second secondary wires (20) are provided inside the cables (17), and the second secondary wires (20) are both connected to the connection terminals (4).

6. A junction box for solar voltage output according to claim 1, characterized in that: Four connecting terminals (4) are provided.

7. A junction box for solar voltage output according to claim 1, characterized in that: The top of the box body (1) is connected to the cover body (2) via a plurality of fixing bolts (21); the top of the box body (1) is provided with a plurality of fixing holes (22); the fixing bolts (21) are provided inside the fixing holes (22).

8. A junction box for solar voltage output according to claim 1, characterized in that: A connection groove (23) is provided at the top end of the cover body (2), and a heat sink (24) is provided inside the connection groove (23).

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