CN211295840U

CN211295840U - Based on distributed photovoltaic protection equipment that is incorporated into power networks

Info

Publication number: CN211295840U
Application number: CN201922481581.6U
Authority: CN
Inventors: 陈义林
Original assignee: Yibin Xinhua Solar Energy Technology Co ltd
Current assignee: Yibin Xinhua Solar Energy Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-18
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a based on distributed photovoltaic protection equipment that is incorporated into power networks, the power distribution box comprises a device box body, the bottom fixed mounting of device box inner chamber has the controller, the top fixed mounting that the front of device box inner chamber is located the controller has the fixed plate, the positive fixed mounting of fixed plate has the separation seat, the front of fixed plate is located the left side fixed mounting that separates the seat and has automatic combined floodgate device. Through setting up the cooperation of opening into and opening out device and circuit breaker for the in-process that the device was using can be when the photovoltaic can't supply power, break off the tie point between photovoltaic and the electric wire netting, and then guarantee that photovoltaic and electric wire netting keep apart, prevent to cause the damage to the photovoltaic, make the device can be in the in-process of carrying out work through the cooperation that sets up controller, temperature sensor, smoke transducer and cooling device, guarantee the normal use of device, improve the life-span of the inside device of device.

Description

Based on distributed photovoltaic protection equipment that is incorporated into power networks

Technical Field

The utility model relates to a photovoltaic is incorporated into the power networks the device specifically is a based on distributed photovoltaic protection equipment that is incorporated into the power networks.

Background

Solar power generation is a beneficial supplement of traditional power generation, and due to the importance of the solar power generation on environmental protection and economic development, developed countries have no force to push solar power generation to work, medium and small scale solar power generation has already formed industry, and the solar power generation has 2 modes of photovoltaic power generation and solar thermal power generation, wherein the photovoltaic power generation has the outstanding advantages of simple maintenance, large or small power and the like, and is widely applied as a medium and small grid-connected power supply.

When the photovoltaic is connected to the grid, a special device is required to be connected with the power grid, so that the safety of grid connection is guaranteed, the currently used grid connection device is always in a connection state with the power grid no matter whether the photovoltaic supplies power to the power grid or not in the use process, therefore, the electricity on the power grid is easily reacted into the grid connection device to damage the grid connection device, and the performance of the grid connection device is easily influenced by environmental factors of the grid connection device in the use process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a based on distributed photovoltaic protection equipment that is incorporated into power networks to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a distributed photovoltaic grid-connected protection device comprises a device box body, wherein a controller is fixedly installed at the bottom of an inner cavity of the device box body, a fixed plate is fixedly installed on the front of the inner cavity of the device box body and positioned above the controller, a separation seat is fixedly installed on the front of the fixed plate, an automatic closing device is fixedly installed on the front of the fixed plate and positioned on the left side of the separation seat, a lightning protection device is fixedly installed on the front of the fixed plate and positioned on the left side of the automatic closing device, a wire inlet air outlet device is fixedly installed on the front of the fixed plate and positioned on the left side of the lightning protection device, an inlet outlet device is fixedly installed on the left side of the inner cavity of the device box body, a wire inlet device is fixedly installed on the left side of the device box body and positioned on the same horizontal plane of the inlet outlet device, a wire outlet device is fixedly installed on the, the bottom fixed mounting of baffle has the battery, the top fixed mounting of device box inner chamber has temperature sensor, the right side fixed mounting that the top of device box inner chamber is located temperature sensor has smoke transducer, the top fixed mounting that the front of device box inner chamber is located the baffle has the insulation board, the positive fixed mounting of insulation board has two-way measurement electric energy meter, the right side fixed mounting that the front of insulation board is located two-way measurement electric energy meter has the breaker device.

As a further aspect of the present invention: the front movable mounting of device box has the chamber door, the front fixed mounting of chamber door has cooling device, the front of chamber door is located the below fixed mounting of cooling device and has the man-machine operation display screen, the front of chamber door is located the below fixed mounting of man-machine operation display screen and has the pilot lamp.

As a further aspect of the present invention: the circuit breaker includes the device shell, the right flank fixed mounting of device shell has electric connecting rod, the side fixed mounting of electric connecting rod has insulating contact plate, the left surface fixed mounting of device shell has the movable chamber, the left surface fixed mounting in movable chamber inner chamber has micro motor, micro motor's output fixed mounting has the lead screw, the surface screw thread of lead screw installs the fly leaf, the other end of fly leaf extends to the inside and the fixedly connected with electricity connection seat of device shell.

As a further aspect of the present invention: the controller is electrically connected with the micro motor, the smoke sensor and the temperature sensor.

As a further aspect of the present invention: one end of the electric connecting rod is respectively connected with the wire outlet device and the isolation seat.

As a further aspect of the present invention: the number of the indicating lamps is three, and the three indicating lamps are respectively a temperature smoke indicating lamp, a circuit breaking indicating lamp and an operation indicating lamp.

Compared with the prior art, the utility model discloses a set up the cooperation of opening out device and circuit breaker for the device is at the in-process that uses, can be when the photovoltaic can't supply power, break off the tie point between photovoltaic and the electric wire netting, and then guarantee that photovoltaic and electric wire netting keep apart, prevent to cause the damage to the photovoltaic, make the device can be carrying out the in-process of work through setting up the controller, temperature sensor, smoke transducer and cooling device's cooperation, guarantee the normal use of device, improve the life-span of the inside device of device.

Drawings

Fig. 1 is a structural sectional view of a distributed photovoltaic grid-connected protection device.

Fig. 2 is a structural front view of a distributed photovoltaic grid-connected protection device.

Fig. 3 is an enlarged view of a point a in fig. 1 in a distributed photovoltaic grid-connected protection device.

In the figure: 1. a device case; 2. an automatic closing device; 3. a fixing plate; 4. an isolation seat; 5. a wire outlet device; 6. a circuit breaking device; 601. a device housing; 602. an electrical connection rod; 603. an electrical connection socket; 604. an insulating contact plate; 605. a screw rod; 606. a micro motor; 607. an activity room; 608. a movable plate; 7. a cooling device; 8. a smoke sensor; 9. a temperature sensor; 10. bidirectional metering electric energy meter; 11. an insulating plate; 12. a partition plate; 13. a storage battery; 14. opening the inlet and outlet device; 15. a wire inlet device; 16. opening the incoming line in the air; 17. a lightning protection device; 18. a controller; 19. an indicator light; 20. a box door; 21. and a man-machine operation display screen.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-3, a distributed photovoltaic grid-connected protection device comprises a device box body 1, a controller 18 is fixedly installed at the bottom of an inner cavity of the device box body 1, a fixed plate 3 is fixedly installed on the front surface of the inner cavity of the device box body 1 above the controller 18, an isolation seat 4 is fixedly installed on the front surface of the fixed plate 3, an automatic closing device 2 is fixedly installed on the front surface of the fixed plate 3 on the left side of the isolation seat 4, a lightning protection device 17 is fixedly installed on the front surface of the fixed plate 3 on the left side of the automatic closing device 2, a wire inlet opening 16 is fixedly installed on the front surface of the fixed plate 3 on the left side of the lightning protection device 17, an opening and closing device 14 is fixedly installed on the left side surface of the inner cavity of the device box body 1, a wire inlet device 15 is fixedly installed on the same horizontal plane of the opening and closing device, a partition plate 12 is fixedly arranged on the front surface of the inner cavity of the device box body 1 above the fixed plate 3, a storage battery 13 is fixedly arranged at the bottom of the partition plate 12, a temperature sensor 9 is fixedly arranged at the top of the inner cavity of the device box body 1, a smoke sensor 8 is fixedly arranged on the top of the inner cavity of the device box body 1 on the right side of the temperature sensor 9, an insulating plate 11 is fixedly arranged on the front surface of the inner cavity of the device box body 1 above the partition plate 12, a bidirectional metering electric energy meter 10 is fixedly arranged on the front surface of the insulating plate 11, a circuit breaking device 6 is fixedly arranged on the front surface of the insulating plate 11 on the right side of the bidirectional metering electric energy meter 10, the circuit breaking device 6 comprises a device shell 601, an electric connecting rod 602 is fixedly arranged on the right side surface of the device shell 601, an insulating contact plate 604 is fixedly, the output end of the micro motor 606 is fixedly provided with a screw rod 605, the outer surface of the screw rod 605 is provided with a movable plate 608 in a threaded manner, the other end of the movable plate 608 extends into the device shell 601 and is fixedly connected with an electric connecting seat 603, the controller 18 is electrically connected with the micro motor 606, the smoke sensor 8 and the temperature sensor 9, and the cooperation of the opening and closing device 14 and the circuit breaking device 6 is arranged, so that the connection point between the photovoltaic and the power grid can be disconnected when the photovoltaic cannot supply power in the using process of the device, the photovoltaic and the power grid are further ensured to be isolated, the photovoltaic is prevented from being damaged, the front surface of the device box body 1 is movably provided with a box door 20, the front surface of the box door 20 is fixedly provided with a cooling device 7, the front surface of the box door 20 is fixedly provided with a man-machine operation display screen 21 below the cooling device 7, and the front surface of the, the quantity of pilot lamp 19 is three, and three pilot lamp 19 is temperature smoke indicator, the pilot lamp that opens circuit and operation pilot lamp respectively, and pilot lamp 19 makes people can understand the operating condition of device constantly, makes the device can be in the in-process of carrying out the work through the cooperation that sets up controller 18, temperature sensor 9, smoke transducer 8 and cooling device 7, guarantees the normal use of device, improves the life-span of the inside device of device.

The utility model discloses a theory of operation is: photovoltaic electricity passes through the wire inlet device 15, the electric power flows into the opening device 14 from the wire inlet device 15, then the micro motor 606 is controlled to work through the controller 18, the micro motor 606 drives the screw rod 605 to rotate, the screw rod 605 rotates to drive the movable plate 608 to move, then the electric connection seat 603 is driven to be attached to the insulating contact plate 604, the isolation seat 4 is connected with the wire outlet device 5, the electric current flows to the wire inlet air opening 16, the lightning protection device 17 and the automatic closing device 2 in sequence through the opening device 14, then the isolation seat 4 is driven to enter, the electric current is further driven to the power grid, at the moment, the bidirectional metering electric energy meter 10 meters the electric quantity, when the temperature sensor 9 detects that the temperature is high, the cooling device 7 is controlled to work, and then the device box 1 is cooled.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A protection device based on distributed photovoltaic grid connection comprises a device box body (1) and is characterized in that a controller (18) is fixedly installed at the bottom of an inner cavity of the device box body (1), a fixing plate (3) is fixedly installed above the controller (18) on the front side of the inner cavity of the device box body (1), a separation seat (4) is fixedly installed on the front side of the fixing plate (3), an automatic closing device (2) is fixedly installed on the left side of the separation seat (4) on the front side of the fixing plate (3), a lightning protection device (17) is fixedly installed on the left side of the automatic closing device (2) on the front side of the fixing plate (3), a lead-in air switch (16) is fixedly installed on the left side of the lightning protection device (17) on the front side of the fixing plate (3), an in-out switch device (14) is fixedly installed on the left side, the device comprises a device box body (1), wherein the left side face of the device box body (1) is fixedly provided with a wire inlet device (15) on the same horizontal plane which is opened into a device (14), the right side face of the device box body (1) is fixedly provided with a wire outlet device (5), the front face of the inner cavity of the device box body (1) is fixedly provided with a partition plate (12) above a fixed plate (3), the bottom of the partition plate (12) is fixedly provided with a storage battery (13), the top of the inner cavity of the device box body (1) is fixedly provided with a temperature sensor (9), the top of the inner cavity of the device box body (1) is fixedly provided with a smoke sensor (8) on the right side of the temperature sensor (9), the front face of the inner cavity of the device box body (1) is fixedly provided with an insulating plate (11) above the partition, and the front surface of the insulating plate (11) is positioned on the right side of the bidirectional metering electric energy meter (10) and is fixedly provided with a circuit breaking device (6).

2. The distributed photovoltaic grid-connected protection device according to claim 1, wherein a box door (20) is movably installed on the front surface of the device box body (1), a cooling device (7) is fixedly installed on the front surface of the box door (20), a man-machine operation display screen (21) is fixedly installed on the front surface of the box door (20) below the cooling device (7), and an indicator lamp (19) is fixedly installed on the front surface of the box door (20) below the man-machine operation display screen (21).

3. The distributed photovoltaic grid-connected protection device according to claim 1, wherein the circuit breaker (6) comprises a device housing (601), an electrical connection rod (602) is fixedly installed on the right side surface of the device housing (601), an insulation contact plate (604) is fixedly installed on the side surface of the electrical connection rod (602), a movable chamber (607) is fixedly installed on the left side surface of the device housing (601), a micro motor (606) is fixedly installed on the left side surface of the inner cavity of the movable chamber (607), a lead screw (605) is fixedly installed at the output end of the micro motor (606), a movable plate (608) is installed on the outer surface of the lead screw (605) in a threaded manner, and the other end of the movable plate (608) extends to the inside of the device housing (601) and is fixedly connected with an electrical connection base (603).

4. The distributed photovoltaic grid-connected protection device according to claim 3, wherein the controller (18) is electrically connected with the micro motor (606), the smoke sensor (8) and the temperature sensor (9).

5. The distributed photovoltaic grid-connected protection device according to claim 3, wherein one end of the electrical connection rod (602) is connected with the wire outlet device (5) and the isolation seat (4) respectively.

6. The distributed photovoltaic grid-connected protection device according to claim 2, wherein the number of the indicator lamps (19) is three, and the three indicator lamps (19) are respectively a temperature smoke indicator lamp, a circuit breaking indicator lamp and an operation indicator lamp.