CN209786784U

CN209786784U - Photovoltaic grid-connected island protection device

Info

Publication number: CN209786784U
Application number: CN201920507468.8U
Authority: CN
Inventors: 周喜章
Original assignee: Nanjing Kangni Ring Network Switch Equipment Co Ltd
Current assignee: Nanjing Kangni Ring Network Switch Equipment Co Ltd
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2019-12-13
Anticipated expiration: 2029-04-15

Abstract

The utility model discloses a photovoltaic grid-connected island protection device relates to island field, and its technical characteristic is: including control room and island protection device, the control room includes the cavity, island protection device installs on the control room diapire, its characterized in that: be equipped with the ascending frame of placing of opening on the diapire of cavity, the lateral wall of placing the frame has all been seted up and has been link up the groove, the diapire of control room is equipped with a plurality of articulated shafts, each near a week of placing the frame the articulated shaft is connected with the backup pad of contradicting at link up the inslot, be equipped with the torsional spring that makes backup pad and island protection device outer wall conflict on the articulated shaft, make island protection device more stable at the control room mounting means, guarantee island protection device's operation.

Description

Photovoltaic grid-connected island protection device

Technical Field

The utility model relates to an island field specifically is a photovoltaic grid-connected island protection device.

Background

The island protection device is a power facility and personnel protection device arranged between a power grid and a small-sized power generation facility, and has the main functions of cutting off the electrical connection between the power grid and the small-sized power generation facility under the condition of power failure of the power grid, preventing the power generation facility from continuously transmitting power to the power grid under the condition of power failure of the power grid, and avoiding overload output of the power generation facility or accidental electric shock of personnel when the power grid fails.

The photovoltaic grid-connected island protection device in the prior art is technically characterized by comprising a control room and an island protection device arranged in the control room, wherein the island protection device is fixed on the control room through a plurality of bolts.

However, when the island protection device is put into or taken out of the control room, a plurality of bolts are required to be installed or disassembled to fix or take out the island protection device, and the process is inconvenient and time is not saved.

SUMMERY OF THE UTILITY MODEL

To prior art's not enough, utility model provides a photovoltaic is incorporated into power networks island protection device, its advantage lies in, makes island protection device install or dismantle fast in the control room, uses manpower sparingly, for realizing above-mentioned purpose, utility model provides a following technical scheme:

the utility model provides a photovoltaic grid-connected island protection device, includes control room and island protection device, be equipped with the cavity in the control room and should be able to set up the mouth of placing that supplies island protection device to put into the cavity, island protection device installs on the control room diapire, be equipped with the ascending frame of placing that is used for placing island protection device of opening on the diapire of cavity, each lateral wall of placing the frame all sets up the groove that link up of placing the frame lateral wall, the diapire of control room is equipped with a plurality of articulated shafts, each near the periphery of placing the frame the articulated shaft rotates and is connected with the backup pad that passes through the groove and contradict with the island protection device outer wall, be equipped with the torsional spring that makes backup pad and island protection device outer wall.

Through adopting above-mentioned technical scheme, firstly, when island protection device places in placing the frame, can stabilize island protection device, the backup pad is stirred manually to the second, the backup pad is contradicted on island protection device, can make island protection device be difficult for removing.

Preferably, a plurality of square through-holes have been seted up to the diapire of control room, the control room is equipped with wherein one side and the L template parallel with ground in the through-hole, L template is equipped with first compression spring with one side parallel with ground, the one end that L template was kept away from to first compression spring is equipped with the locating piece of contradicting on the control room diapire outside, one side fixedly connected with that ground was kept away from to the L template places the board on the control room diapire, place frame, articulated shaft setting on placing the board.

Through adopting above-mentioned technical scheme, second compression spring's setting is convenient for fix the L template on the pore wall of through-hole, is convenient for remove the position of L template this moment, adjusts island protection device's position in order to satisfy the operation requirement.

preferably, the placing plate is provided with a non-slip mat on one side facing the placing frame.

Through adopting above-mentioned technical scheme, place the frame and place on placing the board, the increase is placed the board and is placed the frictional force between the frame, has stabilized more and has placed the frame.

Preferably, when the backup pad contradicts with island protection device, each all be equipped with vertical screw rod in the backup pad, each screw rod one end all with backup pad threaded connection, the other end extend into place the board diapire and with place board threaded connection.

By adopting the technical scheme, the screw rod is rotated, so that the supporting plate can be fixed and is not easy to rotate under the action of the torsion spring; second, can adjust the conflict power of backup pad and island protection device outer wall, frictional force between increase backup pad and island protection device fixes firmly placing the frame with island protection device.

Preferably, each the backup pad is contradicted and is connected with second compression spring in island protection device's one side, the one end that second compression spring kept away from the backup pad is connected with the conflict piece of contradicting with island protection device.

Through adopting above-mentioned technical scheme, put into island protection device and place the frame in, the extrusion piece is contradicted at island protection device's outer wall under the effect of second compression spring's extrusion power this moment, and then fixes island protection device in placing the frame, and the fixed not unidimensional island protection device of extrusion piece of being convenient for this moment satisfies the operation requirement.

Preferably, the upper surface of one side of the island protection device, which is opposite to the placing plate, is provided with a cold water tank.

through adopting above-mentioned technical scheme, island protection device is at the operation in-process, and the phenomenon that appears local generating heat easily makes factors such as island protection device's life, performance receive the influence, and the setting of cold water storage cistern can guarantee that island protection device is difficult for being heated, keeps island protection device normal operating.

Preferably, the upper surface of the placing frame is in threaded connection with a positioning piece which enables the cold water tank to be fixed on the island protection device.

Through adopting above-mentioned technical scheme, fix the cold water tank on island protection device through the mounting, and then reduce the condition emergence that the cold water tank rocked on island protection device, avoid appearing the incident.

Preferably, the cold water tank is set to be circular, and the setting element includes the connecting rod, the connecting rod with place frame upper end wall threaded connection, the one end that the frame was kept away from to the connecting rod is connected with first arc locating lever and the second arc locating lever with the laminating of cold water tank outer wall, the one end that the connecting rod was kept away from to first arc locating lever is equipped with first magnet, second arc locating lever is equipped with the second magnet opposite with the magnetism of first magnet.

Through adopting above-mentioned technical scheme, island protection device receives the extrusion of first arc locating lever and second arc locating lever this moment, and then is fixed, can make first arc locating lever and second arc locating lever actuation through setting up of first magnet and second magnet, and is firmly fixed with island protection device.

through utility model, when island protection device placed in placing the frame, can stabilize island protection device, the backup pad is stirred to the manual, the backup pad is contradicted on island protection device, can make island protection device be difficult for removing, guarantees device normal operating.

Drawings

Fig. 1 is a schematic view of an overall structure of a photovoltaic grid-connected island protection device according to an embodiment;

FIG. 2 is a schematic view of a torsion spring structure for use in the embodiment;

FIG. 3 is a schematic view of an L-shaped plate structure for use in the embodiment;

FIG. 4 is a schematic view of a screw structure used in the embodiment;

FIG. 5 is a schematic view of a moving block structure for embodying an embodiment;

FIG. 6 is a schematic view showing a structure of a cold water tank used in the embodiment;

FIG. 7 is a schematic view of a positioning member used in the embodiment.

In the figure: 1. a control room; 2. an island protection device; 3. placing the frame; 4. a through groove; 5. A support plate; 6. hinging a shaft; 7. a torsion spring; 8. an L-shaped plate; 9. positioning blocks; 10. a first compression spring; 11. placing the plate; 12. a non-slip mat; 13. a contact block; 14. a second compression spring; 15. a cold water tank; 16. a connecting rod; 17. a first magnet; 18. a second magnet; 19. a first arc-shaped positioning rod; 20. a second arc-shaped positioning rod; 21. a through hole; 22. a cavity; 23. a screw; 24. and (4) bolts.

Detailed Description

The following provides a more detailed description of the present invention with reference to the accompanying drawings.

The utility model provides a grid-connected PV island protection device, as figure 1, as figure 2, including control room 1 and island protection device 2, be equipped with cavity 22 in the control room 1 and should be able to set up the mouth of placing that supplies island protection device 2 to put into cavity 22, island protection device 2 installs on 1 diapire of control room, its characterized in that: be equipped with the ascending frame 3 that is used for placing island protection device 2 of opening on cavity 22's the diapire, each lateral wall of placing frame 3 all sets up the groove 4 that link up of lining up of placing frame 3 lateral wall, the diapire of control room 1 is equipped with a plurality of articulated shafts 6 near the periphery of placing frame 3, each articulated shaft 6 rotates and is connected with the backup pad 5 that passes through groove 4 and contradict with island protection device 2 outer wall, be equipped with the torsional spring 7 that makes backup pad 5 and island protection device 2 outer wall conflict on articulated shaft 6, when island protection device 2 placed placing in the frame 3, manual backup pad 5 of stirring, backup pad 5 contradicts on island protection device 2, can make island protection device 2 be difficult for removing.

Referring to fig. 1 and 3, the bottom wall of the control room 1 is provided with a plurality of square through holes 21, the control room 1 is provided with an L-shaped plate 8, one side of which is parallel to the ground, in the through holes 21, one side of the L-shaped plate 8 which is parallel to the ground is provided with a first compression spring 10, one end of the first compression spring 10, which is far away from the L-shaped plate 8L, is provided with a positioning block 9 which is abutted against the outer side of the bottom wall of the control room 1, one side of the L-shaped plate 8L, which is far away from the ground, is fixedly connected with a placing plate 11 which is arranged on the bottom wall of the control room 1, the placing frame 3 and a hinge shaft 6 are arranged on the placing plate 11, the positioning block 9 is shifted to clamp the L-shaped plate 8 on the hole wall of the through holes 21 at different positions, so as to adjust the position of the island protection device 2 to meet, the placing frame 3 is more stabilized.

As fig. 4, when backup pad 5 contradicts with island protection device 2, all be equipped with vertical screw rod 23 in each backup pad 5, each screw rod 23 one end all with backup pad 5 threaded connection, the other end extends to get into place board 11 diapire and with place board 11 threaded connection, through rotating screw rod 23, can the fixed support board 5 be difficult to rotate under the effect of torsional spring 7, the bolt 24 of screwing simultaneously increases the conflict power of backup pad 5 with island protection device 2 outer wall, with the firm fixing of island protection device 2 in placing frame 3.

as fig. 5, each backup pad 5 is contradicted and is connected with second compression spring 14 in one side of island protection device 2, the one end that backup pad 5 was kept away from to second compression spring 14 is connected with the conflict piece 13 of contradicting with island protection device 2, when island protection device 2 put into and arrange the frame in, the extrusion piece contradicts under the effect of the extrusion force of first compression spring 10 at island protection device 2's outer wall this moment, and then fixes island protection device 2 in placing frame 3, the fixed not unidimensional island protection device 2 of extrusion piece of being convenient for this moment, satisfy the operation requirement.

Like fig. 6, one side upper surface that board 11 was placed to island protection device 2 dorsad is equipped with cold water storage cistern 15, and island protection device 2 is in the operation process, and the phenomenon that local heating appears easily makes factors such as island protection device 2's life, performance receive the influence, and island protection device 2 is difficult for being heated can be guaranteed in the setting of cold water storage cistern 15, keeps island protection device 2 normal operating.

Referring to fig. 6 and 7, the upper surface of the placing frame 3 is in threaded connection with a positioning member for fixing the cold water tank 15 on the island protection device 2, the cold water tank 15 is circular, the positioning member comprises a connecting rod 16, the connecting rod 16 is in threaded connection with the upper end wall of the placing frame 3, one end of the connecting rod 16, which is far away from the placing frame 3, is connected with a first arc-shaped positioning rod 19 and a second arc-shaped positioning rod 20, which are attached to the outer wall of the cold water tank 15, one end of the first arc-shaped positioning rod 19, which is far away from the connecting rod 16, is provided with a first magnet 17, the second arc-shaped positioning rod 20 is provided with a second magnet 18 with a magnetic property opposite to that of the first magnet 17, the cold water tank 15 is fixed on the island protection device 2 through a fixing member, so that the condition that the cold water tank 15 shakes on the island protection device 2 is reduced, safety, and then fixed, the first magnet 17 and the second magnet 18 can attract the first arc-shaped positioning rod 19 and the second arc-shaped positioning rod 20, so that the island protection device 2 is firmly fixed.

The above is only the preferred embodiment of utility model, and utility model's scope of protection not only limits in above-mentioned embodiment, and the technical scheme that all belongs to under the utility model thinking all belongs to utility model's scope of protection. It should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the invention, and these modifications and decorations should also be regarded as the protection scope of the invention.

Claims

1. The utility model provides a photovoltaic grid-connected island protection device, includes control room (1) and island protection device (2), be equipped with cavity (22) in control room (1) and should be able to set up the mouth of placing that supplies island protection device to put into cavity (22), install on control room (1) diapire island protection device (2), its characterized in that: be equipped with the ascending frame (3) of placing that is used for placing island protection device of opening on the diapire of cavity (22), each lateral wall of placing frame (3) all sets up link up and places groove (4) that link up of frame (3) lateral wall, the diapire of control room (1) is close to the periphery of placing frame (3) and is equipped with a plurality of articulated shafts (6), each articulated shaft (6) rotate be connected with pass link up groove (4) and with backup pad (5) of contradicting of island protection device (2) outer wall, be equipped with on articulated shaft (6) and make backup pad (5) and torsional spring (7) of contradicting of island protection device (2) outer wall.

2. The photovoltaic grid-connected island protection device according to claim 1, wherein a plurality of square through holes (21) are formed in the bottom wall of the control room (1), an L-shaped plate (8) with one side parallel to the ground is arranged in the through hole (21) of the control room (1), a first compression spring (10) is arranged on one side of the L-shaped plate (8) parallel to the ground, a positioning block (9) abutting against the outer side of the bottom wall of the control room (1) is arranged at one end, far away from the L-shaped plate (8), of the first compression spring (10), a placing plate (11) placed on the bottom wall of the control room (1) is fixedly connected to one side, far away from the ground, of the L-shaped plate (8), and the placing frame (3) and the hinge shaft (6) are arranged on the placing plate (11.

3. a grid-connected PV island protection device according to claim 2, characterized in that the placing plate (11) is provided with a non-slip mat (12) on the side facing the placing frame (3).

4. A photovoltaic grid-connected island protection device according to claim 1, wherein when the support plate (5) is abutted against the island protection device (2), each support plate (5) is provided with a vertical screw rod (23), one end of each screw rod (23) is in threaded connection with the support plate (5), and the other end of each screw rod (23) extends into the bottom wall of the placing plate (11) and is in threaded connection with the placing plate (11).

5. A photovoltaic grid-connected island protection device according to claim 1, wherein each support plate (5) is connected with a second compression spring (14) at one side of the support plate (2) against the island protection device, and one end of the second compression spring (14) far away from the support plate (5) is connected with a contact block (13) against the island protection device (2).

6. A grid-connected PV island protection device according to claim 1 or 2, characterized in that a cold water tank (15) is placed on the upper surface of the side of the island protection device (2) facing away from the placed plate (11).

7. The photovoltaic grid-connected island protection device according to claim 6, wherein the upper surface of the placing frame (3) is in threaded connection with a positioning piece for fixing the cold water tank (15) on the island protection device (2).

8. The photovoltaic grid-connected island protection device according to claim 7, wherein the cold water tank (15) is set to be circular, the positioning piece comprises a connecting rod (16), the connecting rod (16) is in threaded connection with the upper end wall of the placing frame (3), one end, away from the placing frame (3), of the connecting rod (16) is connected with a first arc-shaped positioning rod (19) and a second arc-shaped positioning rod (20) which are attached to the outer wall of the cold water tank (15), one end, away from the connecting rod (16), of the first arc-shaped positioning rod (19) is provided with a first magnet (17), and the second arc-shaped positioning rod (20) is provided with a second magnet (18) which is opposite to the first magnet (17) in magnetism.