CN115173151A - Photovoltaic module wiring device for photovoltaic power generation - Google Patents

Abstract

The invention provides a photovoltaic module wiring device for photovoltaic power generation, comprising: a limit slot block, located inside a junction box body, and a wire runs through the inside of the limit slot block; a winding spool, located at the front end of the junction box body, the winding The left and right sides of the spool are fixed with the front end surface of the junction box body by connecting rods, and the surface of the winding spool is wound with electric wires; the arc-shaped support block is located at the upper end of the limit slot block, and the lower end surface of the arc-shaped support block is connected to the buffer spring. The invention solves the problem that the wire at the outer end of the junction box is placed outside all the year round and is pulled by wind force, which makes the connection between the wire and the wire box loose, resulting in unstable power transmission, and the junction box does not have an anti-loosening structure.

Description

A photovoltaic module wiring device for photovoltaic power generation

technical field

The invention relates to the field of photovoltaic component wiring, in particular to a photovoltaic component wiring device for photovoltaic power generation.

Background technique

Photovoltaic power generation is a technology that directly converts light energy into electrical energy by using the photovoltaic effect of the semiconductor interface. It is mainly composed of solar panels, controllers and inverters. Solar panels, controllers and inverters It is necessary to use a junction box for wiring connection, but the wires at the outer end of the junction box are placed outside all year round and are pulled by wind, etc., so that the connection between the wire and the wire box is loose, resulting in unstable power transmission, and the junction box does not have the problem of anti-loosening structure. .

SUMMARY OF THE INVENTION

In order to overcome the defects of the prior art, a photovoltaic module wiring device for photovoltaic power generation is provided, so as to solve the problem that the wires at the outer end of the junction box are placed outside all the year round and are pulled by the wind, etc., so that the connection between the wires and the wire box is loose. , resulting in unstable power transmission, and the junction box does not have the problem of an anti-loosening structure.

In order to achieve the above purpose, a photovoltaic module wiring device for photovoltaic power generation is provided, comprising:

The limit slot block is located inside the junction box body, and a wire runs through the inside of the limit slot block;

The winding spool is located at the front end of the junction box body, the left and right sides of the winding spool are fixed with the front end surface of the junction box body through the connecting rod, and the surface of the winding spool is wound with electric wires;

The arc-shaped support block is located at the upper end of the limit slot block, and the lower end surface of the arc-shaped support block is connected with the buffer spring.

Further, the junction box body is clamped with a box cover through a snap block, the left and right side walls of the junction box body are adhered with fixing blocks, and the surface of the fixing blocks is provided with fixing holes.

Further, the rear end of the wire is connected with a terminal; and the terminal is fixed inside the junction box body, the front end of the junction box body is fixed with two sets of clamping blocks, and the side end of the limit groove block is welded with connecting blocks.

Further, the clamping block is press-fitted with the electric wire through a bolt assembly, the connecting block is fixed with the junction box body through a screw, and the electric wire passes through the limiting groove block in an inverted U shape.

Further, a small damper is fixed inside the limiting groove block, and a connecting plate is connected to the upper end of the small damper; and a buffer spring is connected to the upper surface of the connecting plate.

Further, the anti-loosening structure for the connection between the arc-shaped support block and the limit slot block groove photovoltaic assembly wire, the upper end surface of the limit slot block is provided with a groove opening; and the upper end of the groove opening is provided with an arc-shaped support block .

Further, a threading slot is arranged inside the limiting slot block, the inner wall of the threading slot is fitted with a lower pressing plate, and the upper end of the lower pressing plate is connected to the limiting slot block through an adjusting stud.

beneficial effect

The photovoltaic module wiring device for photovoltaic power generation of the present invention utilizes the lower pressure plate inside the limit slot block, so that the lower pressure plate at the entry and exit threading grooves in the limit slot block tightly presses the wires in the limit slot block, and through small damping The arc support block and the buffer spring push the arc-shaped support block to support the wire, so that the wire is convex in a U shape, so that the PV module wiring device has an anti-loose structure, which is convenient for effectively resisting and buffering the strength of the external force pulling the wire, and it is convenient to reduce the connection point of the PV module. It ensures the stability of the terminal of the photovoltaic module, facilitates the stable power transmission of the wire, and solves the problem that the junction box does not have an anti-loosening structure.

Description of drawings

FIG. 1 is a schematic front view of the structure of a photovoltaic assembly wiring device for photovoltaic power generation according to an embodiment of the present invention.

2 is a schematic cross-sectional structural diagram of a photovoltaic module wiring device for photovoltaic power generation according to an embodiment of the present invention.

3 is a schematic cross-sectional structural schematic diagram of a side view of a limiting groove block and an arc-shaped support block according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of the front end surface structure of a limit groove block and an arc-shaped support block according to an embodiment of the present invention.

1. Junction box body; 11. Buckling block; 12. Box cover; 13. Fixing block; 14. Fixing hole; 2. Electric wire; 21. Terminal; 3. Clamping block; 31. Bolt assembly; 4. Limit Position slot block; 41, connecting block; 42, screw; 43, groove opening; 44, threading slot; 45, small damper; 46, lower pressure plate; 47, adjusting stud; 5, winding spool; 51, connecting rod ; 6. Arc-shaped support block; 61, buffer spring; 62, connecting plate.

Detailed ways

Referring to FIG. 1 to FIG. 4 , the present invention provides a photovoltaic module wiring device for photovoltaic power generation, including: a limiting groove block 4 , a winding spool 5 and an arc-shaped support block 6 .

The limit slot block 4 is located inside the junction box body 1 , and the electric wire 2 runs through the inside of the limit slot block 4 .

The winding spool 5 is located at the front end of the junction box body 1. The left and right sides of the winding spool 5 are fixed to the front end surface of the junction box body 1 through the connecting rod 51. The surface of the winding spool 5 is wound with the wire 2.

The arc-shaped support block 6 is located at the upper end of the limiting groove block 4 , and the lower end surface of the arc-shaped support block 6 is connected to the buffer spring 61 .

The wires at the outer end of the junction box are placed outside all the year round, and are pulled by the wind, etc., which makes the connection between the wires and the wire box loose, resulting in unstable power transmission, and the junction box does not have the problem of anti-loosening structure. Therefore, the photovoltaic module wiring device for photovoltaic power generation of the present invention utilizes the lower pressure plate inside the limit slot block, so that the lower pressure plate at the entry and exit threading grooves in the limit slot block tightly presses the wires in the limit slot block, and through the The small damper and buffer spring push the arc-shaped support block to support the wire, so that the wire is U-shaped convex, so that the PV module wiring device has an anti-loosening structure, which is convenient for effectively resisting and buffering the strength of the external force pulling the wire, which is convenient for reducing the photovoltaic module. The tensile force at the connection place ensures the stability of the photovoltaic module terminals, facilitates the stable power transmission of the wires, and solves the problem that the junction box does not have an anti-loosening structure.

The junction box body 1 is clamped with a box cover 12 through a snap block 11 , a fixing block 13 is adhered to the left and right side walls of the junction box body 1 , and a fixing hole 14 is provided on the surface of the fixing block 13 .

The fixing block 13 can be attached to the photovoltaic module, and the junction box 1 is screwed on the outer casing of the photovoltaic module through the fixing hole 14 by screws, so as to facilitate wiring with the electric wires 2 connected between the photovoltaic modules.

The rear end of the wire 2 is connected with a terminal 21; and the terminal 21 is fixed inside the sub-junction box body 1, the front end of the junction box body 1 is fixed with two sets of clamping blocks 3, and the side end of the limit slot block 4 is welded with a connecting block 41.

The two sets of clamping blocks 3 are used to clamp two sets of wires 2, and the wires 2 passing through the front end of the clamping blocks 3 are wound on the surface of the winding spool 5, which is convenient for storing the longer wires 2 and avoids the wires 2 being too long and easily pulled.

The clamping block 3 is pressed together with the electric wire 2 through the bolt assembly 31 , the connecting block 41 is fixed with the junction box body 1 through the screw 42 , and the electric wire 2 penetrates the limit slot block 4 in an inverted U shape.

The electric wire 2 pierced from the rear end of the clamping block 3 penetrates into the interior of the limit slot block 4, first penetrates into the threading slot 44 at the front end of the limit slot block 4, then passes through the groove opening 43, and finally passes through the limit slot 44. The threading slot 44 at the rear end of the slot block 4 is passed out.

A small damper 45 is fixed inside the limiting groove block 4 , and a connecting plate 62 is connected to the upper end of the small damper 45 ; and a buffer spring 61 is connected to the upper surface of the connecting plate 62 .

The small damper 45 plays the role of buffer support, and together with the buffer spring 61 resists the force of the arc-shaped support block 6 being pressed down by force, so as to effectively resist and buffer the strength of the external force pulling the wire.

The anti-loose structure of the connection between the arc-shaped support block 6 and the limit slot block 4 groove photovoltaic module wire 2, the upper end surface of the limit slot block 4 is provided with a groove opening 43; and the upper end of the groove opening 43 is provided with an arc-shaped support block 6 .

The limit support and buffering of the arc-shaped support block 6 and the limit groove block 4 reduce the pulling force on the connection of the photovoltaic module and ensure the stability of the connection terminal of the photovoltaic module. The upper surface of the arc-shaped support block 6 is attached to the U-shaped protrusion of the electric wire 2 .

The limiting slot block 4 is provided with a threading slot 44 , the inner wall of the threading slot 44 is fitted with a lower pressing plate 46 , and the upper end of the lower pressing plate 46 is connected to the limiting slot block 4 through an adjusting stud 47 .

Rotate the adjustment stud 47 to tightly press the lower pressing plate 46 on the surface of the wire 2 running through the threading groove 44, so as to facilitate the compression of the wire 2 in the threading groove 44 on the front and rear sides of the limit groove block 4, and further resist the pulling force. .

The photovoltaic module wiring device for photovoltaic power generation of the present invention can effectively solve the problem that the junction box does not have an anti-loosening structure, effectively resist and buffer the strength of external force pulling the wire, ensure the stability of the photovoltaic module terminal, and is suitable for photovoltaic power generation. device.

Claims (7)

1. The utility model provides a photovoltaic module termination for photovoltaic power generation which characterized in that includes:

the limiting groove block (4) is positioned inside the junction box body (1), and an electric wire (2) penetrates through the limiting groove block (4);

the wire winding device comprises a winding spool (5) which is positioned at the front end of a junction box body (1), wherein the left side and the right side of the winding spool (5) are fixed with the surface of the front end of the junction box body (1) through connecting rods (51), and an electric wire (2) is wound on the surface of the winding spool (5);

the arc-shaped supporting block (6) is positioned at the upper end of the limiting groove block (4), and the lower end face of the arc-shaped supporting block (6) is connected with the buffer spring (61).

2. The photovoltaic module wiring device for photovoltaic power generation as claimed in claim 1, wherein the junction box body (1) is connected with the box cover (12) in a clamping manner through a clamping block (11), fixing blocks (13) are bonded on the left side wall and the right side wall of the junction box body (1), and fixing holes (14) are formed in the surface of each fixing block (13).

3. The photovoltaic module wiring device for photovoltaic power generation as claimed in claim 1, wherein a terminal (21) is connected to a rear end of the electric wire (2); and wiring end (21) is fixed inside the sub-wiring box body (1), two sets of clamping blocks (3) are fixed at the front end of the wiring box body (1), and the side end of the limiting groove block (4) is welded with a connecting block (41).

4. The photovoltaic module wiring device for photovoltaic power generation as claimed in claim 3, wherein the clamping block (3) is pressed with the electric wire (2) through the bolt assembly (31), the connecting block (41) is fixed with the junction box body (1) through the screw (42), and the electric wire (2) is in an inverted U shape and penetrates through the limiting groove block (4).

5. The photovoltaic module wiring device for photovoltaic power generation as claimed in claim 1, wherein a small damper (45) is fixed inside the limiting groove block (4), and a connecting plate block (62) is connected to the upper end of the small damper (45); and the upper surface of the connecting plate (62) is connected with a buffer spring (61).

6. The photovoltaic module wiring device for photovoltaic power generation as claimed in claim 1, wherein the arc-shaped supporting block (6) and the limiting groove block (4) are of anti-loosening structure connected with the photovoltaic module wires (2), and the upper end surface of the limiting groove block (4) is provided with a notch (43); and the upper end of the groove opening (43) is provided with an arc-shaped supporting block (6).

7. The photovoltaic module wiring device for photovoltaic power generation as claimed in claim 1, wherein a threading groove (44) is formed in the limiting groove block (4), a lower pressing plate (46) is attached to the inner wall of the threading groove (44), and the upper end of the lower pressing plate (46) is connected with the limiting groove block (4) through an adjusting stud (47).

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