CN214478480U - Cubical switchboard bunching device for photovoltaic power generation - Google Patents

Abstract

The utility model provides a switch cabinet bunching device for photovoltaic power generation, which comprises an upper shell and a lower shell with an open side, wherein the lower shell and the open side of the upper shell are oppositely arranged, one end of a central column is connected with the upper shell, and the other end is connected with the lower shell; the hub comprises a bottom plate, a first limiting plate, a second limiting plate, a third limiting plate and a fourth limiting plate are sequentially arranged on the periphery of the bottom plate, and the hub is arranged in cavities in the upper shell and the lower shell; the coil spring is arranged in a cavity formed among the first limiting plate, the second limiting plate and the fourth limiting plate; one end of the electric wire is arranged in the conductive column and wound outside the hub, and the other end of the electric wire penetrates through the opening and extends out of the wire bunching device; the conductive partition plate is installed between the upper case and the lower case. The utility model aims at providing a can adjust the interior electric wire length of cubical switchboard, make the bunching device that both ends electric wire homoenergetic is freely flexible.

Description

Cubical switchboard bunching device for photovoltaic power generation

Technical Field

The utility model belongs to the bunch field, concretely relates to cubical switchboard bunching device for photovoltaic power generation.

Background

For a photovoltaic grid-connected power generation system on a low-voltage distribution network side, electricity needs to be incorporated into a power grid through a switch cabinet. The switch cabinet is a complete set of power distribution device formed by assembling primary equipment and secondary equipment according to a certain circuit scheme, and is used for controlling and protecting circuits and equipment.

The switch cabinets on the market at present have many problems, such as the circuits are scattered and no wire bunching device is arranged, the wires are inconvenient to observe, and therefore improvement is needed.

The existing wire bunching device is complex in structure and troublesome to operate, and the technical scheme provided by the comparison document 202020232145.5 can only store wires which are not used, so that the problem that the length of the wires can be adjusted and the wires at two ends can freely stretch and retract can not be solved.

SUMMERY OF THE UTILITY MODEL

In view of the limitations of the above methods, the present invention is to provide a wire bunching device capable of adjusting the length of the wires in the switch cabinet and making the wires at both ends capable of freely extending and retracting.

The utility model provides a following technical scheme:

a switch cabinet wire bunching device for photovoltaic power generation comprises a cabinet body, wherein an installation plate is arranged on the inner wall of the cabinet body, and the switch cabinet wire bunching device is characterized in that the installation plate is provided with the wire bunching device, the wire bunching device comprises an upper shell with an opening at one side, a central column is arranged at the center of the upper shell, and the central column is longitudinally opened; the lower shell is provided with an opening at one side, the lower shell and the upper shell are oppositely arranged at the opening side, one end of the central column is connected with the upper shell, and the other end of the central column is connected with the center of the lower shell; the center of the hub is provided with a hole through which a center column can pass, the hub further comprises a bottom plate, a first limiting plate, a second limiting plate and a third limiting plate are sequentially arranged on the periphery of the bottom plate, and gaps are reserved among the limiting plates; a wire groove is formed between the fourth limiting plate and the third limiting plate, and a cavity is formed among the first limiting plate, the second limiting plate and the fourth limiting plate; the conductive column is arranged in a wire slot formed between the fourth limiting plate and the third limiting plate; the wheel hub is arranged in the cavity in the upper shell and the lower shell; the coil spring is arranged in a cavity formed among the first limiting plate, the second limiting plate and the fourth limiting plate, one end of the coil spring is arranged on the central column, after the coil spring is wound around the central column, the other end of the coil spring passes through a gap between the first limiting plate and the second limiting plate and is arranged on the first limiting plate; one end of the electric wire is installed in the longitudinal opening in the conductive column, the electric wire passes through a wire slot between the third limiting plate and the fourth limiting plate, then bypasses the third limiting plate and is wound outside the hub, and the other end of the electric wire passes through the opening and extends out of the wire bunching device; the electric wire is in electric contact with the conductive column; the conductive partition plate is arranged between the upper shell and the lower shell, a hole is formed in the middle of the conductive partition plate for the central column to penetrate through, and the upper ends of the conductive columns on the upper shell and the lower shell are both in contact with the conductive partition plate.

Furthermore, the conductive column and the conductive partition plate are made of conductive materials, and the upper shell, the lower shell and the hub are made of insulating materials.

Further, a plurality of the wire harness devices may be mounted on the mounting plate.

The utility model has the advantages that:

1. simple structure, convenient to use, wire length adjusts as required, and the length of the electric wire of taking out on upper portion and the electric wire of lower part do not influence each other.

Can accomodate the electric wire that does not use, the electric wire at both ends can both be mutual noninterference accomodate.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic structural view of the wheel hub of the present invention;

fig. 4 is a schematic structural view of the conductive partition plate of the present invention.

Labeled as: 1. a cabinet body; 2. mounting a plate; 3. an upper housing; 4. a lower housing; 5. an electric wire; 6. a coil spring; 7. a first limit plate; 8. a second limiting plate; 9. a third limiting plate; 10. a fourth limiting plate; 11. a conductive post; 12. an opening; 13. a central column; 14. a hub; 15. a conductive separator; 16. a base plate.

Detailed Description

As shown in fig. 1 to 4, the utility model provides a cubical switchboard bunching device for photovoltaic power generation, its structure includes and is equipped with mounting panel 2 on the inner wall of the cabinet body 1, install a plurality of bunching devices on the mounting panel 2, the bunching device includes the open last casing 3 in one side, it is equipped with center post 13 to go up 3 center departments of casing, go up and install wheel hub 14 in the 3 cavity of casing, wheel hub 14 center department is equipped with the hole, supply center post 13 to pass, wheel hub 14 includes bottom plate 16, bottom plate 16 periphery includes first limiting plate 7 in proper order, second limiting plate 8 and third limiting plate 9, and there is the breach between each limiting plate, can supply wind spring 6 or electric wire 5 to pass through. A fourth limiting plate 10 is further mounted inside the hub 14, a cavity for accommodating the coil spring 6 is formed among the first limiting plate 7, the second limiting plate 8 and the fourth limiting plate 10, one end of the coil spring 6 penetrates through a longitudinal opening in the middle of the central column 13 and is fixed on the central column 13, the coil spring is wound around the central column 13, the other end of the coil spring passes through a gap between the first limiting plate 7 and the second limiting plate 8, and the coil spring is hooked on the first limiting plate 7; a wire groove used for accommodating the wire 5 is formed between the third limiting plate 9 and the fourth limiting plate 10, a conductive column 11 is arranged in the wire groove, one end of the wire 5 is clamped in a longitudinal opening in the conductive column 11, the wire groove passes through the wire groove between the third limiting plate 9 and the fourth limiting plate 10, the wire is wound outside the hub 14 after passing through the third limiting plate 9, and the wire passes through the opening 12 and extends out of the wire bunching device.

Still include casing 4 down, casing 4 also is one side open, and is the same with last casing 3 inner structure, goes up casing 3 and the relative installation of casing 4 open side down, goes up and installs conducting baffle 15 between casing 3 and the casing 4 down, and it is porose in the middle of conducting baffle 15, can supply center post 13 to pass, goes up casing 3 and leads electrical pillar 11 upper end on casing 4 down and all contacts with conducting baffle 15.

One end of the central column 13 is connected with the upper shell 3, the other end is connected with the center of the lower shell 4, and the central column 13 sequentially passes through a hub 14 on the upper shell 3, a conductive partition plate 15 and the hub 14 on the lower shell 4.

The upper shell 3, the lower shell 4 and the hub 14 are made of insulating materials, and the conductive columns 11 and the interlayer plates 15 are made of conductive materials. The part of the electric wire 5 clamped on the conductive column 11 is not wrapped by the insulating material, and can be electrically contacted with the conductive column 11.

Furthermore, the switch cabinet for photovoltaic power generation is provided with a plurality of wire bunching devices.

The utility model discloses a theory of operation does: when the electric wire 5 extending out of the upper shell 3 is pulled and a longer electric wire 5 is needed, the connecting wire 5 is pulled outwards, the hub 14 rotates, the coil spring 6 is gradually tightened along with the rotation of the hub 14, the electric wire wound outside the hub 14 is gradually extended along with the rotation of the hub 14, and the electric wire 5 is extended; when the electric wire 5 is to be accommodated in the wire harness apparatus again, the electric wire 5 is loosened, the coil spring 6 starts to deform and expand, and is restored to a natural state, and at the same time, the pulley hub 14 is driven to rotate reversely, and the electric wire 5 is wound around the outside of the hub 14 gradually.

The electric wires 5 of the upper case 3 and the electric wires 5 of the lower case 4 are electrically connected through the conductive posts 11 and the conductive partition 15. For example, the current passes from the wires 5 of the lower housing 4 to the conductive posts 11, to the interlayer sheet 15, and to the wires 5 of the upper housing 3.

The utility model discloses a design is key, through the elastic deformation who utilizes the wind spring, drives the rotation of wheel hub, realizes automatic receipts line, makes the circuit in the cubical switchboard when not using, need not the manual work and receives the line, and during electric wire 5 can be automatically received and is drawn into the wire winding box, simultaneously, can stretch electric wire 5 and reach suitable length. This scalable bunching device simple structure, convenient to use realizes that wire length needs adjust in the cubical switchboard for photovoltaic power generation to can accomodate into the bunching device automatically when not using, accomodate electric wire 5.

And the electric wire 5 on the upper part and the electric wire 5 on the lower part of the cabinet body 1 can be stored without mutual interference, and the length of the electric wire 5 drawn out from the upper part and the electric wire 5 on the lower part do not influence each other.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (3)

1. A switch cabinet bunching device for photovoltaic power generation is characterized in that a mounting plate (2) is arranged on the inner wall of a cabinet body (1), the bunching device is mounted on the mounting plate (2) and comprises,

the device comprises an upper shell (3) with an opening at one side, wherein a central column (13) is arranged at the center of the upper shell (3), and the central column (13) is longitudinally opened;

the lower shell (4) with one open side is oppositely arranged with the upper shell (3), one end of the central column (13) is connected with the upper shell (3), and the other end is connected with the center of the lower shell (4);

the center of the hub (14) is provided with a hole through which a center column (13) can pass, the hub (14) further comprises a bottom plate (16), a first limiting plate (7), a second limiting plate (8) and a third limiting plate (9) are sequentially mounted on the periphery of the bottom plate (16), and gaps are formed among the limiting plates; a wire groove is formed between the fourth limiting plate (10) and the third limiting plate (9), and a cavity is formed among the first limiting plate (7), the second limiting plate (8) and the fourth limiting plate (10); the conductive column (11), the conductive column (11) is installed in a wire slot formed between the fourth limiting plate (10) and the third limiting plate (9); the hub (14) is arranged in a cavity in the upper shell (3) and the lower shell (4);

the coil spring (6) is arranged in a cavity formed among the first limiting plate (7), the second limiting plate (8) and the fourth limiting plate (10), one end of the coil spring (6) is arranged on the central column (13), after the coil spring is wound around the central column (13), the other end of the coil spring passes through a gap between the first limiting plate (7) and the second limiting plate (8), and the coil spring is arranged on the first limiting plate (7);

one end of the electric wire (5) is installed in the longitudinal opening in the conductive column (11), the electric wire (5) passes through a wire slot between the third limiting plate (9) and the fourth limiting plate (10), then bypasses the third limiting plate (9) and is wound outside the hub (14), and the other end of the electric wire (5) passes through the opening (12) and extends out of the wire bunching device; the electric wire (5) is in electric contact with the conductive column (11);

the conductive partition plate (15) is installed between the upper shell (3) and the lower shell (4), a hole is formed in the middle of the conductive partition plate (15) for the central column (13) to penetrate through, and the upper ends of the conductive columns (11) on the upper shell (3) and the lower shell (4) are in contact with the conductive partition plate (15).

2. The switchgear wire harness apparatus for photovoltaic power generation according to claim 1, wherein the conductive column (11) and the conductive partition (15) are made of conductive material, and the upper housing (3), the lower housing (4), and the hub (14) are made of insulating material.

3. The switchgear bunch apparatus for photovoltaic power generation as claimed in claim 1, wherein a plurality of the bunch apparatus can be mounted on the mounting plate (2).

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