CN218678405U

CN218678405U - Distributed photovoltaic power station leakage protection device

Info

Publication number: CN218678405U
Application number: CN202222505706.6U
Authority: CN
Inventors: 朱佳晨
Original assignee: Fengdexin Power Development Co ltd
Current assignee: Fengdexin Power Development Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-03-21
Anticipated expiration: 2032-09-21

Abstract

The leakage protection device for the distributed photovoltaic power station comprises a box body arranged outside, a controller arranged in the box body through an installation part, a sealing cover arranged at the top end of the box body through a bolt, a leakage current detector arranged in the sealing cover, an alarm arranged on one side of the box body, a liquid level sensor connected with the alarm through a wire and a lifting mechanism, wherein the lifting mechanism is arranged on one side of the box body; elevating system includes casing, mounting panel and mounting hole, and the casing is fixed on the installation face, and the inside of casing is provided with the inner chamber, and the mid-mounting of inner chamber has the lead screw, and servo motor is installed to the one end of lead screw, and the bilateral symmetry of lead screw is fixed with the guide post, is provided with the elevator on lead screw and the guide post, the utility model discloses novel structure thinks about ingeniously, can rise controller and leakage current detector, avoids controller and leakage current detector by the rainwater submergence, improves controller and leakage current detector's life, simple structure.

Description

Distributed photovoltaic power station leakage protection device

Technical Field

The utility model relates to an earth leakage protection device specifically is distributing type photovoltaic power station earth leakage protection device.

Background

The photovoltaic power generation station is a power generation system which utilizes solar energy and is composed of electronic elements made of special materials such as a crystalline silicon plate, an inverter and the like, and a photovoltaic power generation system which is connected with a power grid and transmits power to the power grid, the existing photovoltaic power generation station is generally installed on the roof of a building or a house, the existing photovoltaic power generation system needs to monitor leakage current in a photovoltaic grid-connected inverter in order to ensure the safety of operators, the existing leakage current detector and a controller used for controlling the inverter to be disconnected realize leakage protection, the existing leakage current detector and the controller are exposed on a support of the existing photovoltaic power generation station, and therefore the existing leakage current detector and the controller are easy to damage when water is accumulated in rainy days, and the detection effect of leakage signals is influenced.

For this purpose, application numbers of: 201820208266.9 distributed photovoltaic power station leakage protection device can solve the above technical problem well, but the rising mode of the existing distributed photovoltaic power station leakage protection device has high requirement for the layout of the circuit, the top of the installation groove is an opening, accumulated water easily enters the installation groove, the service life of the electric push rod cannot be ensured, and the electric push rod has low lifting stability and is not beneficial to use.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a distributed photovoltaic power station earth leakage protection device, the effectual rising mode of having solved current distributed photovoltaic power station earth leakage protection device requires highly to laying of circuit, and the mounting groove top is the opening, easily enters ponding in the mounting groove, can't guarantee electric putter's life, and electric putter lift stability is lower, is unfavorable for the problem of use.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model comprises an externally arranged box body, a controller installed in the box body through an installation part, a sealing cover installed on the top end of the box body through a bolt, a leakage current detector installed in the sealing cover, an alarm installed on one side of the box body and a liquid level sensor connected with the alarm through a wire, and a lifting mechanism, wherein the lifting mechanism is installed on one side of the box body;

elevating system includes casing, inner chamber, lead screw, servo motor, bearing, guide post, elevator, the silk hole, the guiding hole, mounting panel and mounting hole, the casing is fixed on the installation face, the inside of casing is provided with the inner chamber, the mid-mounting of inner chamber has the lead screw, servo motor is installed to the one end of lead screw, the bilateral symmetry of lead screw is fixed with the guide post, be provided with the elevator on lead screw and the guide post, the elevator corresponds lead screw position department and has seted up the silk hole, the one end of elevator is provided with the mounting panel, the mounting hole has been seted up on the mounting panel.

Preferably, the level sensor is mounted on one side of the housing.

Preferably, a protective cover is installed on the outer side of the servo motor.

Preferably, the screw rod is connected with the housing through a bearing.

Preferably, a guide hole is formed in the position, corresponding to the guide post, of the lifting block.

Preferably, the top end of the mounting plate is connected with the box body through a fixing bolt.

Has the advantages that: the utility model discloses during the use, when the siren is reported an emergency and asked for help or increased vigilance, remind staff in time to control servo motor work, servo motor work drives the lead screw and rotates, the lead screw rotates under the cooperation with the silk hole of seting up on the elevator, make the elevator move on the lead screw, the elevator removes and drives the mounting panel and installs the box removal on the mounting panel, thereby make the box rise, the staff eliminates the water level simultaneously, avoid the box by rainwater submergence, can effectively protect controller and leakage current detector, be favorable to using.

The utility model discloses novel structure thinks about ingeniously, can rise controller and leakage current detection ware, avoids controller and leakage current detection ware by rainwater submergence, improves controller and leakage current detection ware's life, simple structure.

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 housing structure of the present invention;

FIG. 3 is a schematic view of the three-dimensional structure of the lifting block of the present invention;

reference numbers in the figures: 1. a box body; 2. an installation part; 3. a controller; 4. a bolt; 5. a sealing cover; 6. a leakage current detector; 7. an alarm; 8. a liquid level sensor; 9. a lifting mechanism; 901. a housing; 902. an inner cavity; 903. a screw rod; 904. a servo motor; 905. a bearing; 906. a guide post; 907. a lifting block; 908. a silk hole; 909. a guide hole; 910. mounting a plate; 911. and (7) mounting holes.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying fig. 1-3.

The first embodiment is given by fig. 1-3, the utility model provides a distributed photovoltaic power station leakage protection device, which comprises a box body 1 arranged outside, a controller 3 arranged in the box body 1 through an installation part 2, a sealing cover 5 arranged on the top end of the box body 1 through a bolt 4, a leakage current detector 6 arranged in the sealing cover 5, an alarm 7 arranged on one side of the box body 1, a liquid level sensor 8 connected with the alarm 7 through a wire, and a lifting mechanism 9, wherein the lifting mechanism 9 is arranged on one side of the box body 1;

the lifting mechanism 9 comprises a shell 901, an inner cavity 902, a screw rod 903, a servo motor 904, a bearing 905, a guide post 906, a lifting block 907, a screw hole 908, a guide hole 909, a mounting plate 910 and a mounting hole 911, wherein the shell 901 is fixed on a mounting surface, the inner cavity 902 is arranged inside the shell 901, the screw rod 903 is arranged in the middle of the inner cavity 902, the servo motor 904 is arranged at one end of the screw rod 903, the guide posts 906 are symmetrically fixed on two sides of the screw rod 903, the lifting block 907 is arranged on the screw rod 903 and the guide post 906, the screw hole 908 is formed in the position, corresponding to the screw rod 903, of the lifting block 907, the mounting plate 910 is arranged at one end of the lifting block 907, the mounting hole 911 is formed in the mounting plate 910, and the servo motor 904 is electrically connected with an external control switch.

When in specific use: the utility model discloses during the use, when siren 7 sends out the police dispatch newspaper, remind the staff in time to control servo motor 904 work, servo motor 904 work drives lead screw 903 and rotates, lead screw 903 rotates and under the cooperation of the silk hole 908 of seting up on the elevator 907, make elevator 907 move on lead screw 903, elevator 907 moves and drives mounting panel 910 and installs the box 1 removal on mounting panel 910, thereby make box 1 rise, the staff eliminates the water level simultaneously, avoid box 1 to be protected by rainwater submergence, can effectively protect controller 3 and leakage current detector 6, and is favorable to the use.

Has the advantages that: the utility model discloses novel structure thinks about ingeniously, can rise controller 3 and leakage current detector 6, avoids controller 3 and leakage current detector 6 by the rainwater submergence, improves controller 3 and leakage current detector 6's life, simple structure.

Example two

In the first embodiment, the liquid level sensor 8 is inconvenient to install and use, and referring to fig. 1, as another preferred embodiment, the difference from the first embodiment is that the liquid level sensor 8 is installed on one side of the casing 901, so that the installation and use of the liquid level sensor 8 are facilitated.

EXAMPLE III

In the first embodiment, the servo motor 904 has insufficient protection, and as another preferred embodiment, the difference from the first embodiment is that a protection cover is installed on the outer side of the servo motor 904, so as to protect the servo motor 904.

Example four

In the first embodiment, the screw rod 903 is inconvenient to install and use, and referring to fig. 2, as another preferred embodiment, the difference from the first embodiment is that the screw rod 903 is connected with the housing 901 through a bearing 905, so that the installation and use of the screw rod 903 are facilitated.

EXAMPLE five

Referring to fig. 1 to 3, as another preferred embodiment, the difference between the first embodiment and the second embodiment is that a guide hole 909 is formed at a position of the lifting block 907 corresponding to the guide post 906, so as to improve the stability of the lifting block 907 during lifting.

EXAMPLE six

Referring to fig. 3, the difference between the first preferred embodiment and the first embodiment is that the top end of the mounting plate 910 is connected to the box 1 by a fixing bolt, which facilitates the mounting of the mounting plate 910 to the box 1.

Finally, it should be noted that: 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

1. Distributed photovoltaic power generation station earth leakage protection device, including outside box (1) that sets up, controller (3) through installation department (2) installation in box (1), sealed cowling (5) of bolt (4) installation are passed through on box (1) top, leak current detector (6) of sealed cowling (5) internally mounted, level sensor (8) that box (1) one side-mounting's siren (7) and siren (7) pass through the wire and connect, its characterized in that: the box body is characterized by also comprising a lifting mechanism (9), wherein the lifting mechanism (9) is arranged on one side of the box body (1);

the lifting mechanism (9) comprises a shell (901), an inner cavity (902), a screw rod (903), a servo motor (904), a bearing (905), a guide post (906), a lifting block (907), a screw hole (908), a guide hole (909), a mounting plate (910) and a mounting hole (911), wherein the shell (901) is fixed on a mounting surface, the inner cavity (902) is arranged inside the shell (901), the screw rod (903) is mounted in the middle of the inner cavity (902), the servo motor (904) is mounted at one end of the screw rod (903), the guide posts (906) are symmetrically fixed on two sides of the screw rod (903), the lifting block (907) is arranged on the screw rod (903) and the guide post (906), the screw hole (908) is formed in the position, corresponding to the screw rod (903), of the lifting block (907), the mounting plate (910) is arranged at one end of the lifting block (907), and the mounting hole (911) is formed in the mounting plate (910).

2. Distributed photovoltaic power plant leakage protection device according to claim 1, characterized in that the level sensor (8) is mounted on one side of the casing (901).

3. Distributed photovoltaic power plant leakage protection device according to claim 1, characterized in that a protective cover is mounted on the outside of the servo motor (904).

4. Distributed photovoltaic power plant leakage protection device according to claim 1, characterized in that the lead screw (903) is connected to the housing (901) by means of a bearing (905).

5. The leakage protection device for the distributed photovoltaic power station as claimed in claim 1, wherein the lifting block (907) is provided with a guide hole (909) at a position corresponding to the guide post (906).

6. The distributed photovoltaic power plant leakage protection device according to claim 1, characterized in that the top end of the mounting plate (910) is connected to the box body (1) through a fixing bolt.