CN211701506U

CN211701506U - Photovoltaic power generation grid-connected access device

Info

Publication number: CN211701506U
Application number: CN202020606343.3U
Authority: CN
Inventors: 高志强; 张静; 高志安
Original assignee: Yunnan Shuoming Power Engineering Co ltd
Current assignee: Yunnan Shuoming Power Engineering Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-10-16
Anticipated expiration: 2030-04-21

Abstract

The utility model discloses a photovoltaic power generation is incorporated into power networks and is inserted device, including photovoltaic module, photovoltaic module passes through connecting wire and grid-connected inverter electric connection, and connecting wire has and is provided with 2 to 2 connecting wire's electrode sets up respectively to positive negative pole, connecting wire is provided with the segmentation, and its segmentation alternates the interlude mouth that the terminal box side set up and is connected, and its interlude mouth has and is provided with 4 departments to single interlude mouth department is equipped with 4 fixed blocks. This photovoltaic power generation access device that is incorporated into power networks is equipped with the terminal box, connecting wire's segmentation department can connect in the terminal box, has increased its connection effect's reliability, and the device is equipped with the movable rod, the movable rod passes through the spring action terminal box and fixes a position the connecting wire of the transverse gap between 4 fixed blocks and constitutes elastic construction, this structural connection state is stable, and easy dismounting, let connecting wire's the connection effect better, avoided connecting wire segmentation junction atress separation.

Description

Photovoltaic power generation grid-connected access device

Technical Field

The utility model relates to a solar energy power generation technical field specifically is a photovoltaic power generation access device that is incorporated into power networks.

Background

Photovoltaic power generation grid connection is that direct current generated by a solar component is converted into alternating current meeting the requirements of a commercial power grid through a grid connection inverter and then is directly connected to a public power grid. And can be divided into grid-connected power generation systems with and without a storage battery. The grid-connected power generation system with the storage battery has schedulability, can be incorporated into or quit a power grid as required, also has the function of a standby power supply, can supply power emergently when the power grid has power failure due to reasons, and is often installed in residential buildings. Grid-connected power generation systems without storage batteries do not have the functions of schedulability and standby power supply, and are generally installed on larger systems.

Two core components of a photovoltaic power generation grid-connected system are a grid-connected inverter and a photovoltaic assembly which are connected through a wire, a safe and reliable integrated 10kV grid-connected access device is invented in a 10kV distributed photovoltaic power generation grid-connected access device with the patent number of CN201620465626.4, however, the connection mode of the wire is not explained, the wire used for connecting the grid-connected inverter and the photovoltaic assembly needs to be connected due to the length problem, the existing wiring work is not stable enough, and the safety of the connecting wire cannot be guaranteed, so that the defects exist in the prior art and the improvement of the prior art are needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a photovoltaic power generation is incorporated into power networks and is inserted device to solve the not good problem of wiring mode of the inverter that is incorporated into power networks who proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a photovoltaic power generation is incorporated into power networks and is inserted device, includes photovoltaic module, photovoltaic module passes through connecting wire and grid-connected inverter electric connection, and connecting wire has and is provided with 2 to 2 connecting wire's electrode sets up to positive negative pole respectively, connecting wire is provided with the segmentation, and its segmentation alternates the interlude mouth that the terminal box side set up and is connected, and its interlude mouth has and is provided with 4 departments to single interlude mouth department is equipped with 4 fixed blocks, the fixed block is fixed in terminal box inner wall bottom, and is equipped with the clearance between 4 fixed blocks to be equipped with the movable rod in its vertical clearance, the movable rod is connected with terminal box inner wall bottom through the spring, connecting wire's one end is arranged in the transverse gap between 4 fixed blocks, it has the gland to be equipped with on the.

Preferably, a fixed plate is arranged in the junction box, limiting rods are arranged at the parallel positions of the two sides of the fixed plate, and the joints of the connecting lead segments are arranged in gaps between the fixed plate and the limiting rods.

Preferably, the height of the limiting rod and the height of the fixing plate are smaller than the diameter of the cross section of the connecting lead.

Preferably, the fixing plate is provided with a threaded through hole, a threaded part of the half-thread threaded rod is inserted into the threaded through hole, and a fixing disc is embedded in the outer wall of a cylindrical part of the half-thread threaded rod.

Preferably, the top end of the half-tooth threaded rod is provided with a connected handle, and the handle is of an oval structure.

Preferably, half tooth threaded rod and fixed disk all set up to the plastics material, and the fixed disk lower extreme gomphosis has the insulating cushion.

Compared with the prior art, the beneficial effects of the utility model are that: this photovoltaic power generation access device that is incorporated into power networks is equipped with the terminal box, connecting wire's segmentation department can connect in the terminal box, has increased its connection effect's reliability, and the device is equipped with the movable rod, the movable rod passes through the spring action terminal box and fixes a position the connecting wire of the transverse gap between 4 fixed blocks and constitutes elastic construction, this structural connection state is stable, and easy dismounting, let connecting wire's the connection effect better, avoided connecting wire segmentation junction atress separation.

Drawings

Fig. 1 is a structural diagram of a photovoltaic power generation grid-connected access device of the utility model;

fig. 2 is an enlarged view of a position a in fig. 1 of the photovoltaic power generation grid-connected access device of the present invention;

fig. 3 is a schematic view of a movable rod connection junction box of a photovoltaic power generation grid-connected access device of the present invention;

fig. 4 is the utility model relates to a photovoltaic power generation is incorporated into power networks and is inserted device's half tooth threaded rod connection fixed plate schematic diagram.

In the figure: 1. photovoltaic module, 2, grid-connected inverter, 3, terminal box, 4, gag lever post, 5, fixed block, 6, handle, 7, connecting wire, 8, fixed disk, 9, fixed plate, 10, movable rod, 11, spring, 12, half tooth threaded rod, 13, insulating cushion.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a photovoltaic power generation grid-connected access device comprises a photovoltaic component 1, a grid-connected inverter 2, a junction box 3, a limiting rod 4, a fixed block 5, a handle 6, a connecting wire 7, a fixed disc 8, a fixed plate 9, a movable rod 10, a spring 11, a half-threaded rod 12 and an insulating rubber mat 13, wherein the photovoltaic component 1 is electrically connected with the grid-connected inverter 2 through the connecting

wire

7, 2 connecting wires 7 are arranged, electrodes of the 2 connecting wires 7 are respectively set to be positive and negative electrodes, the connecting wire 7 is provided with segments, the segments are inserted into insertion ports arranged at the side end of the junction box 3 and are connected with insertion ports arranged at 4 positions, 4 fixed blocks 5 are arranged at a single insertion port, the fixed blocks 5 are fixed at the bottom end of the inner wall of the junction box 3, gaps are arranged among the 4 fixed blocks 5, the movable rod 10 is arranged in the vertical gaps, and the movable rod 10 is connected with the, one end of a connecting lead 7 is arranged in a transverse gap between 4 fixing blocks 5, a gland is arranged on the junction box 3, a fixing plate 9 is arranged in the junction box 3, limiting rods 4 are arranged at the parallel positions of two sides of the fixing plate 9, the segmented joint of the connecting lead 7 is arranged in a gap between the fixing plate 9 and the limiting rods 4, a limiting effect is provided for the segmented joint of the connecting lead 7 in the gap between the fixing plate 9 and the limiting rods 4, a good preparation condition is provided for the fixing operation of the joint position, the height of the limiting rods 4 and the fixing plate 9 is smaller than the section diameter of the connecting lead 7, the stress effect of the connecting lead 7 is better, the situation that the segmented section of the connecting lead 7 is not stressed is avoided, a threaded through hole is arranged on the fixing plate 9, a threaded part of a half-tooth threaded rod 12 is inserted in the threaded through hole, and a fixing plate 8 is embedded on the outer wall of the cylindrical part, half threaded rod 12 acts on fixed disk 8 through the screw through-hole of fixed plate 9 rather than constituting spiral movable structure, this structure can let movable fixed disk 8 extrude fixedly to the junction of connecting wire 7 segmentation, let the junction of connecting wire 7 further be consolidated, let its stability better, half threaded rod 12 top is equipped with the handle 6 that is connected, and handle 6 sets up to oval structure, handle 6 is conveniently put forth effort, let the convenient laborsaving of activity simple operation of half threaded rod 12, half threaded rod 12 and fixed disk 8 all set up to the plastics material, and the gomphosis of fixed disk 8 lower extreme has insulating cushion 13, insulating cushion 13 contacts with the exposed junction of connecting wire 7 segmentation, the insulating effect has been played, the emergence of potential safety hazard has been stopped.

The working principle is as follows: when the photovoltaic power generation grid-connected access device is used, firstly, connecting leads 7 are respectively connected with a photovoltaic component 1 and a grid-connected inverter 2, then, a movable rod 10 is pulled to stretch a spring 11, meanwhile, one segmented end of the connecting leads 7 at different positions sequentially penetrates through a penetrating opening of a junction box 3 and a transverse gap between 4 fixing blocks 5 to be arranged in a gap between a limiting rod and a fixing plate, then, the movable rod 10 is loosened to extrude and fix the position of the connecting leads 7 under the elastic reaction of the spring 11, rubber at the segmented joint of the connecting leads 7 is pulled out to be correspondingly connected, finally, a half-tooth threaded rod 12 is operated by a handle 6 to rotate, the half-tooth threaded rod 12 rotates to interact with a threaded through hole of the fixing plate 9 to drive the fixing plate 8 to descend, the fixing plate 8 descends to drive an insulating rubber pad 13 to be contacted with the segmented joint of the connecting leads 7, the subsection connection part of the connecting lead 7 is extruded and fixed, and a gland is covered on the junction box, so that the photovoltaic power generation grid-connected access device is used.

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 or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a photovoltaic power generation is incorporated into power networks and is inserted device, includes photovoltaic module (1), photovoltaic module (1) is through connecting wire (7) and grid-connected inverter (2) electric connection, and connecting wire (7) have and be provided with 2 to the electrode of 2 connecting wire (7) sets up respectively to positive negative pole, its characterized in that: connecting wire (7) are provided with the segmentation, and the interlude mouth that its segmentation interlude terminal box (3) side set up is connected, and its interlude mouth has and is provided with 4 departments to single interlude mouth department is equipped with 4 fixed block (5), fixed block (5) are fixed in terminal box (3) inner wall bottom, and are equipped with the clearance between 4 fixed block (5), and are equipped with movable rod (10) in its vertical clearance, movable rod (10) are connected with terminal box (3) inner wall bottom through spring (11), the one end of connecting wire (7) is arranged in the horizontal clearance between 4 fixed block (5), be equipped with on terminal box (3) and cover the gland.

2. The photovoltaic power generation grid-connected access device according to claim 1, characterized in that: the connecting wire is characterized in that a fixing plate (9) is arranged in the junction box (3), limiting rods (4) are arranged at the parallel positions of the two sides of the fixing plate (9), and the segmented joints of the connecting wires (7) are arranged in gaps between the fixing plate (9) and the limiting rods (4).

3. The photovoltaic power generation grid-connected access device according to claim 2, characterized in that: the height of the limiting rod (4) and the height of the fixing plate (9) are smaller than the section diameter of the connecting lead (7).

4. The photovoltaic power generation grid-connected access device according to claim 2, characterized in that: the fixing plate (9) is provided with a thread through hole, a thread part of the half-thread threaded rod (12) is inserted into the thread through hole, and the outer wall of a cylindrical part of the half-thread threaded rod (12) is embedded with a fixing plate (8).

5. The photovoltaic power generation grid-connected access device according to claim 4, characterized in that: half tooth threaded rod (12) top is equipped with handle (6) that are connected, and handle (6) set up to oval structure.

6. The photovoltaic power generation grid-connected access device according to claim 4, characterized in that: half tooth threaded rod (12) and fixed disk (8) all set up to the plastics material, and fixed disk (8) lower extreme gomphosis has insulating cushion (13).