CN216564145U

CN216564145U - Photovoltaic power generation exchanges case safety device that is incorporated into power networks

Info

Publication number: CN216564145U
Application number: CN202122906922.7U
Authority: CN
Inventors: 王利; 陈超; 李贺新; 赵恒�
Original assignee: New Energy Branch Of Huaneng Heilongjiang Power Generation Co ltd
Current assignee: New Energy Branch Of Huaneng Heilongjiang Power Generation Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-05-17
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a photovoltaic power generation alternating current grid-connected box safety device which comprises a box body, wherein a cavity is formed in the inner wall of the box body, a breaker is arranged in the cavity, a sliding groove is formed in the inner wall of the box body, a first wedge block, a second wedge block and a cross rod are connected in the sliding groove in a sliding mode, the first wedge block and the second wedge block are perpendicular to each other, one ends of the first wedge block and the second wedge block are abutted, a first spring is sleeved outside the second wedge block, a first pressing block is fixedly connected onto the second wedge block, two ends of the first spring are fixedly connected with the outer surface of the box body and the first pressing block respectively, and the cross rod is located behind the first wedge block and is not abutted against the first wedge block. According to the utility model, the first pressing block is pressed down and then the second pressing block is pulled, so that the power-off of the power-off device is realized, and the power-off caused by mistaken touch can be prevented; and the door of the box does not need to be opened during power failure, and the breaker does not need to be directly contacted.

Description

Photovoltaic power generation exchanges case safety device that is incorporated into power networks

Technical Field

The utility model relates to the technical field of grid-connected boxes, in particular to a safety device of a photovoltaic power generation alternating current grid-connected box.

Background

Photovoltaic power generation is a technology for directly converting light energy into electric energy by utilizing the photovoltaic effect of a semiconductor interface, and mainly comprises a solar panel, a controller and an inverter; the grid-connected box is a box body convenient for circuit switching.

When the grid-connected box is in an accident situation, the grid-connected box needs to be powered off, and the box door needs to be opened by a key, so that the power can be cut off, which is troublesome, and if the grid-connected box directly contacts a power breaker positioned in the grid-connected box, the danger of electric shock can be caused; and the switch of the breaker is of a push type, so that the whole device is easy to stop running due to accidental collision and accidental touch, and therefore the safety device of the photovoltaic power generation alternating-current grid-connected box is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a safety device of a photovoltaic power generation alternating current grid-connected box.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a photovoltaic power generation alternating current grid-connected box safety device comprises a box body, wherein a cavity is formed in the inner wall of the box body, a breaker is arranged in the cavity, a sliding groove is formed in the inner wall of the box body, a first wedge block, a second wedge block and a transverse rod are connected in the sliding groove in a sliding mode, the first wedge block and the second wedge block are perpendicular to each other, one end of the first wedge block is abutted to the other end of the first wedge block, a first spring is sleeved outside the second wedge block, a first pressing block is fixedly connected to the second wedge block, the two ends of the first spring are fixedly connected with the outer surface of the box body and the first pressing block respectively, the transverse rod is located behind the first wedge block and does not abut to the first wedge block, a stretching mechanism is arranged between the first wedge block and the transverse rod, a second pressing block is fixedly connected to the transverse rod, a second spring is sleeved outside the transverse rod, the two ends of the second spring are fixedly connected with the outer surface of the box body and the second block respectively, and a damping mechanism is arranged below the box body.

Preferably, the stretching mechanism comprises a wedge-shaped groove formed in the first wedge-shaped block, a connecting plate is fixedly connected to the left end of the cross rod, and a third wedge-shaped block corresponding to the wedge-shaped groove is fixedly connected to the connecting plate.

Preferably, damper is including installing four telescopic links at the box lower extreme, four the telescopic link is the rectangle and distributes, the extension end of telescopic link and the lower extreme fixed connection of box, the telescopic link overcoat is equipped with the third spring, the both ends of third spring respectively with the lower extreme and the telescopic link fixed connection of box.

Preferably, the inner wall of the box body is provided with a limit groove, a limit block is connected in the limit groove in a sliding mode, and the limit block is fixedly connected with the first wedge-shaped block.

Preferably, the lower end of the first wedge-shaped block is fixedly connected with a supporting block, the supporting block is made of rubber, and the supporting block is hemispherical.

Preferably, the breaker is provided with a pull rod, and the abutting block does not abut against the pull rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the grid-connected box is required to be powered off, the first pressing block is pressed down firstly, then the second pressing block is pulled, the push rod on the breaker can be pushed through the first wedge-shaped block, the whole device is powered off, the box door does not need to be opened by a key in the whole process, and the breaker is not required to be in direct contact with the box, so that the device is convenient and safe.

2. Because need press the first piece of pressing earlier, pull the second again and press the piece, just can realize the outage, this mistake of just avoiding touches and leads to whole device outage.

In summary, the first pressing block is pressed down and then the second pressing block is pulled to cut off the power supply of the power breaker, so that the power supply can be prevented from being cut off due to mistaken touch; and the door of the box does not need to be opened during power failure, and the breaker does not need to be directly contacted.

Drawings

FIG. 1 is a front sectional view of the present invention.

Fig. 2 is an enlarged view at a.

Fig. 3 is a front view of the present invention.

In the figure: the device comprises a box body 1, a cavity 2, an interrupter 3, a sliding groove 4, a first wedge-shaped block 5, a butting block 6, a second wedge-shaped block 7, a first pressing block 8, a first spring 9, a cross rod 10, a connecting plate 11, a third wedge-shaped block 12, a wedge-shaped groove 13, a second pressing block 14, a second spring 15, a limiting groove 16, a limiting block 17, an expansion rod 18 and a third spring 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a photovoltaic power generation exchanges case safety device that is incorporated into power networks, including box 1, be equipped with the chamber door on box 1, be equipped with cavity 2 on the inner wall of box 1, be equipped with breaker 3 in the cavity 2, be equipped with sliding tray 4 on the inner wall of box 1, sliding tray 4 sliding connection has first wedge 5, second wedge 7, horizontal pole 10, first wedge 5 and second wedge 7 mutually perpendicular and one end offset the setting, when second wedge 7 moves left, can make first wedge 5 move one end distance downwards, make the position of wedge 13 correspond with third wedge 12.

The second wedge block 7 overcoat is equipped with first spring 9, the first pressure piece 8 of fixedly connected with on the second wedge block 7, the both ends of first spring 9 respectively with the surface of box 1 and first pressure piece 8 fixed connection, horizontal pole 10 is located 5 backs of first wedge block and rather than offseting, fixedly connected with second pressure piece 14 on the horizontal pole 10, horizontal pole 10 overcoat has second spring 15, the both ends of second spring 15 respectively with the surface of box 1 and second pressure piece 14 fixed connection.

Be equipped with stretching mechanism between first wedge 5 and the horizontal pole 10, stretching mechanism is including seting up the wedge groove 13 on first wedge 5, and the left end fixedly connected with connecting plate 11 of horizontal pole 10, fixedly connected with third wedge 12 corresponding with wedge groove 13 on the connecting plate 11 moves when third wedge 12 moves right, if wedge groove 13 just rather than corresponding, will drive first wedge 5 downstream with the offset of wedge groove 13.

The box 1 below is equipped with damper, damper including installing four telescopic links 18 at the box 1 lower extreme, four telescopic links 18 are the rectangle and distribute, the extension end of telescopic link 18 and the lower extreme fixed connection of

box

1, 18 overcoat of telescopic link are equipped with third spring 19, the both ends of third spring 19 respectively with the lower extreme of box 1 and telescopic link 18 fixed connection.

Be equipped with spacing groove 16 on the inner wall of box 1, sliding connection has stopper 17 in the spacing groove 16, and stopper 17 and 5 fixed connection of first wedge through setting up stopper 17, can carry on spacingly to first wedge 5, avoid 5 roll-off sliding chutes 4 of first wedge.

The top of box 1 is provided with the antenna, and the inside of box 1 is provided with consumer such as anti-island protector, ammeter, dc-to-ac converter, and these equipment all are connected with 3 electricity of outage wares, through promoting the push rod, can make 3 the outage of entire device of outage ware.

The working principle is as follows: when the grid-connected box needs to be powered off accidentally, a worker firstly presses the first pressing block 8, compresses the first spring 9 to drive the second wedge-shaped block 7 to move leftwards, after the second wedge-shaped block 7 is abutted against the first wedge-shaped block 5, the first wedge block 5 moves downwards for a certain distance under the limit of the limit block 17, so that the wedge groove 13 is just positioned at the position corresponding to the third wedge block 12, then the second pressing block 14 is pulled to stretch the second spring 15, so that the cross rod 10, the connecting plate 11 and the third wedge block 12 move rightwards, after the third wedge block 12 abuts against the wedge-shaped groove 13, drives the first wedge-shaped block 5 and the resisting block 6 to move downwards, the resisting block 6 pushes the push rod on the breaker 3, make the outage ware 3 let whole case that is incorporated into the power networks cut off the power supply, whole in-process staff need not open the door of box 1, convenient and fast also need not directly contact with outage ware 3, avoids electrocuteeing.

And finally, the worker loosens the first pressing block 8 and the second pressing block 14, under the elastic force action of the first spring 9 and the second spring 15, the first wedge-shaped block 5, the second wedge-shaped block 7 and the cross rod 10 all return to the original positions, and then the worker opens the door of the box body 1, so that the interior can be maintained.

Due to the fact that the first pressing block 8 needs to be pressed down in sequence and then the second pressing block 14 needs to be pulled, even if the first pressing block 8 or the second pressing block 14 is touched by mistake due to accidental collision, the grid-connected box cannot be powered off.

When the box body 1 encounters collision, the box body 1 can be buffered under the action of the elastic force of the third spring 19, and the shock absorption is carried out on the box body 1.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a photovoltaic power generation exchanges case safety device that is incorporated into power networks, includes box (1), its characterized in that: the inner wall of the box body (1) is provided with a cavity (2), the cavity (2) is internally provided with an interrupter (3), the inner wall of the box body (1) is provided with a sliding groove (4), the sliding groove (4) is internally connected with a first wedge block (5), a second wedge block (7) and a cross rod (10), the first wedge block (5) and the second wedge block (7) are mutually vertical and one end of the first wedge block (5) is abutted, the second wedge block (7) is externally sleeved with a first spring (9), the second wedge block (7) is fixedly connected with a first pressing block (8), two ends of the first spring (9) are respectively fixedly connected with the outer surface of the box body (1) and the first pressing block (8), the cross rod (10) is positioned at the rear side of the first wedge block (5) and is not abutted against the first wedge block, and a stretching mechanism is arranged between the first wedge block (5) and the cross rod (10), the shock absorption box is characterized in that a second pressing block (14) is fixedly connected to the cross rod (10), a second spring (15) is sleeved outside the cross rod (10), two ends of the second spring (15) are fixedly connected with the outer surface of the box body (1) and the second pressing block (14) respectively, and a shock absorption mechanism is arranged below the box body (1).

2. The photovoltaic power generation alternating current grid-connected box safety device according to claim 1, characterized in that the stretching mechanism comprises a wedge-shaped groove (13) formed in the first wedge-shaped block (5), a connecting plate (11) is fixedly connected to the left end of the cross rod (10), and a third wedge-shaped block (12) corresponding to the wedge-shaped groove (13) is fixedly connected to the connecting plate (11).

3. The photovoltaic power generation alternating current grid-connected box safety device is characterized in that the damping mechanism comprises four telescopic rods (18) installed at the lower end of the box body (1), the four telescopic rods (18) are distributed in a rectangular shape, the extending ends of the telescopic rods (18) are fixedly connected with the lower end of the box body (1), third springs (19) are sleeved outside the telescopic rods (18), and two ends of the third springs (19) are respectively fixedly connected with the lower end of the box body (1) and the telescopic rods (18).

4. The photovoltaic power generation alternating current grid-connected box safety device according to claim 1, characterized in that a limiting groove (16) is formed in the inner wall of the box body (1), a limiting block (17) is connected in the limiting groove (16) in a sliding manner, and the limiting block (17) is fixedly connected with the first wedge-shaped block (5).

5. The safety device of the photovoltaic power generation alternating current grid-connected box according to claim 1, wherein a supporting block (6) is fixedly connected to the lower end of the first wedge-shaped block (5), the supporting block (6) is made of rubber, and the supporting block (6) is hemispherical.

6. The photovoltaic power generation alternating current grid-connected box safety device is characterized in that a pull rod is arranged on the breaker (3), and the abutting block (6) does not abut against the pull rod.