CN210224763U

CN210224763U - Protective device for photovoltaic integrated box-type substation

Info

Publication number: CN210224763U
Application number: CN201921658602.0U
Authority: CN
Inventors: Ruibao Wang; 王瑞保; Guoquan Dong; 董国权
Original assignee: Henan Yizheng Electrical Equipment Co ltd
Current assignee: Henan Yizheng Electrical Equipment Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-03-31
Anticipated expiration: 2029-09-30

Abstract

The utility model provides an integrated box of photovoltaic protector for transformer substation, the power distribution box comprises a box body, the box is connected with the case lid, be equipped with the positive copper bar that converges and the negative pole copper bar that converges in the box, the positive copper bar that converges and the negative pole copper bar that converges are connected with the circuit breaker through the fuse respectively, the circuit breaker is connected with the dc-to-ac converter, the fuse is connected with the current detection subassembly, be equipped with the environment detection subassembly in the box, box one side is equipped with the ventilation net, be equipped with the display screen on the case lid, display screen one side is equipped with heat abstractor, heat abstractor cooperatees with the ventilation net, the control box respectively with the current detection. The utility model discloses inside components and parts design is compact, real-time to the internal environment change monitoring of box and to the transmission of electricity in-process current intensity change real-time supervision, improved whole operation security greatly to box to long-time operation has automatic ventilation cooling's effect, avoids electrical component to appear electrical fire in the box.

Description

Protective device for photovoltaic integrated box-type substation

Technical Field

The utility model relates to a technical field of photovoltaic lightning protection especially relates to an integrated box-type substation of photovoltaic uses protector.

Background

Along with the rapid development of economy, commercial power consumption and resident power consumption are increased year by year, although the traditional thermal power generation can supply a large amount of electric energy, a large amount of primary energy is consumed in the thermal power generation process, on one hand, the primary energy is greatly reduced, on the other hand, a large amount of pollution gas is generated in the power generation process to influence air quality, in recent years, science and technology are continuously developed, particularly in the power industry, various environment-friendly power generation forms are continuously generated, wherein solar power generation is most popular, a combiner box is required to be adopted to convert direct current and then transmit the direct current to a power supply network in the solar power generation process, but the traditional combiner box runs for a long time, a large amount of dust is easily accumulated inside the traditional combiner box, the contact of internal electrical elements is influenced, the heat dissipation effect in the combiner.

SUMMERY OF THE UTILITY MODEL

To the long-time operation of traditional collection flow box, a large amount of dusts are gathered easily to inside, very easily take place the technical problem of electric fire, the utility model provides an integrated box-type substation of photovoltaic uses protector.

In order to solve the above problem, the technical scheme of the utility model is so realized:

the utility model provides an integrated box protector for transformer substation of photovoltaic, includes the box, and the box is connected with the case lid, is equipped with the positive pole copper bar that converges and the negative pole copper bar that converges in the box, and the positive pole copper bar that converges and the negative pole copper bar that converges are connected with the circuit breaker through the fuse respectively, and fuse and circuit breaker all are connected with photovoltaic lightning protection device, and the circuit breaker is connected with the dc-to-ac converter, the fuse is connected with the current detection subassembly, is equipped with the environment detection subassembly in the box, and box one side is equipped with the ventilation net, is equipped with the display screen on the case lid, and display screen one side is equipped with heat abstractor, and heat abstractor cooperatees with the.

Further, the current detection subassembly includes leakage current sensor and hall current sensor, and leakage current sensor encircles and installs on the transmission line between fuse and circuit breaker, and leakage current sensor and hall current sensor all are connected with the control box.

Further, the environment detection assembly comprises a smoke detector and a temperature sensor, the smoke detector and the temperature sensor are fixed on the inner wall of the box body, and the smoke detector and the temperature sensor are connected with the control box.

Further, the heat dissipation device comprises a heat dissipation fan, and the heat dissipation fan is connected with the control box.

Further, the control box comprises a storage battery, the storage battery is connected with a central processing unit, the central processing unit is respectively connected with the electric leakage sensor, the Hall current sensor, the circuit breaker, the smoke detector, the temperature sensor, the display screen, the heat dissipation fan, the voice player, the memory and the communication module, and the communication module is connected with the moving end.

Further, the number of the heat dissipation fans is at least two.

Furthermore, the communication module is a 4G communication module, a Bluetooth communication module or a zigbee communication module.

Furthermore, a clamping block is arranged on the box cover, a groove is formed in the clamping block, and the groove is matched with the box body.

The utility model has the advantages that: the utility model discloses inside components and parts design is compact, utilizes hall current sensor and electric leakage sensor real-time to the box in-process current intensity change real-time supervision that transmits electricity, guarantees the security of transmitting electricity, utilizes temperature sensor and smoke detector to monitor environmental change simultaneously, improves the interior environmental security of box, has improved whole operation security greatly to the box to long-time operation has automatic ventilation cooling's effect, avoids electrical fire to appear in the box electrical component.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the internal structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

In the figure, 1 is the fixture block, 2 is the fuse, 3 is anodal copper bar that converges, 4 is incoming line terminal, 5 is the display screen, 6 is the heat dissipation fan, 7 is the ventilation net, 8 is the control box, 9 is the dc-to-ac converter, 10 is the photovoltaic lightning protection device, 11 is the circuit breaker, 12 is leakage sensor, 13 is the negative pole copper bar that converges, 14 is smoke detector, 15 is temperature sensor.

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 any creative effort belong to the protection scope of the present invention.

As shown in figure 1, a protector for integrated box-type substation of photovoltaic, including the box, the box is connected with the case lid, is equipped with fixture block 1 on the case lid, is equipped with the recess on the fixture block, and the recess cooperatees with the box, makes things convenient for staff's operation, the box and the case lid chucking of being convenient for simultaneously. Box one end is equipped with incoming wire terminal 4, and incoming wire terminal 4 is used for wearing to establish the electric wire, is equipped with the positive pole copper bar 3 and the negative pole copper bar 13 that converges in the box, and the positive pole copper bar 3 and the negative pole copper bar 13 that converges are connected with circuit breaker 11 through fuse 2 respectively, and fuse 2 and circuit breaker 11 all are connected with photovoltaic lightning protection device 10, and circuit breaker 11 is connected with dc-to-ac converter 9.

Fuse 2 is connected with the current detection subassembly, the current detection subassembly includes earth leakage sensor 12 and hall current sensor, earth leakage sensor 12 is DS010LDA direct current earth leakage sensor, earth leakage sensor encircles and installs on direct current loop's transmission line and sets up between fuse 2 and circuit breaker 11, earth leakage sensor is used for monitoring whether electric leakage appears on the transmission line, hall current sensor and fuse 2 series connection, hall current sensor is AHKC-EKAA hall current sensor, hall current sensor is used for monitoring the current strength change on the transmission line, earth leakage sensor 12 and hall current sensor all are connected with control box 8, in case the electric leakage condition appears on finding the transmission line, control box 8 control voice player sends the warning, simultaneously with alarm information storage in the memory.

An environment detection assembly is arranged in the box body, the environment detection assembly comprises a smoke detector 14 and a temperature sensor 15, the smoke detector 14 and the temperature sensor 15 are fixed on the inner wall of the box body and located below the ventilation net, the smoke detector can adopt a JTY-GD-882 photoelectric smoke detector for detecting fire in the box body, the temperature sensor can adopt a DS18B20 temperature sensor for monitoring the temperature in the box body in real time, the smoke detector 14 and the temperature sensor 15 are connected with the control box 8, and once smoke in the box body is found, the control box controls the voice player to give an alarm to remind surrounding workers to overhaul; when the temperature in the box is too high, the control box controls the voice player to give an alarm, and controls the cooling fan to start to ventilate and cool so as to reduce the temperature in the box.

As shown in fig. 2, box one side is equipped with ventilation net 7, be equipped with display screen 5 on the case lid, display screen 5 is used for each item monitoring parameter in the display box, display screen 5 one side is equipped with heat abstractor, heat abstractor is including heat dissipation fan 6, heat dissipation fan 6 is fixed in the case lid inboard, heat abstractor cooperatees with ventilation net 7, when the case lid is in the closed condition, the ventilation hole of heat dissipation fan 6 is corresponding with ventilation net 7, be convenient for outside ventilation, the quantity that sets up of heat dissipation fan 6 is at least two sets of, two sets of heat dissipation fan 6 symmetry respectively set up in display screen 5 both sides, help improving whole ventilation effect, control box 8 is connected with current detection subassembly respectively, circuit breaker 11, the environment measuring subassembly, display screen 5 and heat.

Including the battery in the control box 8, the battery is connected with central processing unit, central processing unit respectively with electric leakage sensor 12, hall current sensor, circuit breaker 11, smoke detector, a weighing sensor and a temperature sensor, display screen 5, heat dissipation fan 6, voice player, memory and communication module are connected, central processing unit is STM32F103RET6 singlechip, communication module is connected with removing the end, it is the smart mobile phone to remove the end, communication module is 4G communication module, bluetooth communication module or zigbee communication module, central processing unit passes through communication module with the signal of receiving and transmits to removing the end, make things convenient for managers in time to know in the box environmental parameter and the transmission line on the current strength change.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an integrated box protector for transformer substation of photovoltaic, the power distribution box comprises a box body, the box is connected with the case lid, be equipped with anodal copper bar (3) and the negative pole copper bar (13) that converges in the box, anodal copper bar (3) and negative pole copper bar (13) that converge are connected with circuit breaker (11) through fuse (2) respectively, fuse (2) and circuit breaker (11) all are connected with photovoltaic lightning protection device (10), circuit breaker (11) are connected with dc-to-ac converter (9), a serial communication port, fuse (2) are connected with the current detection subassembly, be equipped with the environment detection subassembly in the box, box one side is equipped with ventilation net (7), be equipped with display screen (5) on the case lid, display screen (5) one side is equipped with heat abstractor, heat abstractor cooperatees with ventilation net (7), control box (8) respectively with the, The environment detection assembly, the display screen (5) and the heat dissipation device are connected.

2. The protection device for the photovoltaic integrated box-type substation of claim 1, wherein the current detection assembly comprises a leakage sensor (12) and a Hall current sensor, the leakage sensor (12) is installed on a power transmission line between the fuse (2) and the circuit breaker (11) in a surrounding mode, the Hall current sensor is connected with the fuse (2), and the leakage sensor (12) and the Hall current sensor are both connected with the control box (8).

3. The protection device for the photovoltaic integrated box-type substation of claim 1, wherein the environment detection assembly comprises a smoke detector (14) and a temperature sensor (15), the smoke detector (14) and the temperature sensor (15) are both fixed on the inner wall of the box body, and the smoke detector (14) and the temperature sensor (15) are both connected with the control box (8).

4. The protection device for a photovoltaic integrated box substation according to claim 1, characterized in that the heat dissipation device comprises a heat dissipation fan (6), the heat dissipation fan (6) being connected with the control box (8).

5. The protection device for the photovoltaic integrated box-type substation according to any one of claims 1 to 4, characterized in that a storage battery is included in the control box (8), the storage battery is connected with a central processing unit, the central processing unit is respectively connected with the leakage sensor (12), the Hall current sensor, the circuit breaker (11), the smoke detector, the temperature sensor, the display screen (5), the heat dissipation fan (6), the voice player, the memory and the communication module, and the communication module is connected with the mobile terminal.

6. The protection device for a photovoltaic integrated box substation according to claim 5, characterized in that the number of the heat dissipation fans (6) is at least two.

7. The protection device for the photovoltaic integrated box-type substation of claim 5, wherein the communication module is a 4G communication module, a Bluetooth communication module or a zigbee communication module.

8. The protection device for the photovoltaic integrated box-type substation of claim 1, wherein a fixture block (1) is arranged on the box cover, a groove is arranged on the fixture block, and the groove is matched with the box body.