CN115776273B - Photovoltaic collection flow box and photovoltaic system - Google Patents
Photovoltaic collection flow box and photovoltaic system Download PDFInfo
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- CN115776273B CN115776273B CN202211560683.7A CN202211560683A CN115776273B CN 115776273 B CN115776273 B CN 115776273B CN 202211560683 A CN202211560683 A CN 202211560683A CN 115776273 B CN115776273 B CN 115776273B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model relates to a photovoltaic busbar box, which comprises a box body and a box cover, wherein a mounting plate is arranged in the box body, a busbar, a detection module, a direct current anode wiring terminal, a direct current cathode wiring terminal, a driving power supply and a light Fu Fanglei device are arranged on the mounting plate, a direct current breaker is arranged on the right side of a photovoltaic lightning protection device, one end of the busbar is electrically connected with a lead-out row, the other end of the lead-out row is electrically connected with the direct current cathode wiring terminal and the direct current breaker, a light Fu Fanglei device is electrically connected with the detection module, the direct current cathode wiring terminal, the direct current breaker and the lead-out row, and the driving power supply is electrically connected with the detection module and the light Fu Fanglei device; the lower end of the box body is provided with a plurality of wiring components; the rapid wiring is realized through the wiring assembly; the photovoltaic system comprises the photovoltaic conflux box, a fingerprint coded lock connected with the main controller in a communication mode is arranged on the photovoltaic conflux box, a two-dimension code display area is arranged on a display screen of the main controller, and information of the conflux box can be acquired and uploaded through scanning the two-dimension code, so that maintenance and management of the photovoltaic system are facilitated.
Description
Technical Field
The utility model belongs to the technical field of photovoltaics, and particularly relates to a photovoltaic combiner box and a photovoltaic system.
Background
In a photovoltaic power generation system, in order to reduce connecting lines between a solar power generation panel array and an inverter, generally, a junction box device is adopted as a conversion device between the solar power generation panel array and the inverter, and the junction box is provided with a switching circuit and can detect the operation condition of the photovoltaic power generation system, so that the control and supervision capacity of the photovoltaic power generation system is improved, the use amount of the junction box in the photovoltaic power generation system is huge, but the fact that the existing junction box has poor lightning attack resistance in the operation process and is easily damaged due to lightning Gao Faji in summer is found in the specific use process; moreover, the sealing insulation performance of the existing photovoltaic combiner box is poor, water stains or dust are easy to enter the box body, the box body is exposed to the external environment for a long time, the water stains and the dust are easy to enter the box body, and accordingly the service life of the combiner box is influenced due to the fact that each module in the box body breaks down.
In order to solve the technical problem, the Chinese utility model with the authority bulletin number of CN208190058U discloses an intelligent photovoltaic lightning protection junction box, lightning protection can be effectively carried out through a photovoltaic lightning protection device, and a corresponding sealing assembly is arranged to improve the sealing performance of the junction box. But this photovoltaic combiner box still has the following problems: during field construction, the connecting wires of the photovoltaic plates penetrate through each wiring hole and then are connected to the wiring terminals through bolts, and because more photovoltaic modules and more photovoltaic circuits in the photovoltaic places are provided, the work load is brought to the circuit connection.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a photovoltaic combiner box and a photovoltaic system which are convenient for on-site wiring operation and convenient for subsequent maintenance and management.
The technical scheme of the utility model is as follows:
the utility model provides a photovoltaic combiner box, includes the box and with box swing joint's case lid, be provided with the mounting panel in the box, busbar, detection module and direct current positive pole binding post are installed in proper order to the left side top-down of mounting panel, direct current positive pole binding post right side is provided with direct current negative pole binding post, detection module right side is provided with drive power supply and light Fu Fanglei ware of installing side by side, the right side of photovoltaic lightning protection device is provided with the direct current breaker, busbar electric connection detection module's outlet terminal, detection module's inlet wire end electric connection direct current positive pole binding post's outlet terminal, the one end electric connection of busbar has the outgoing bar, the other end electric connection direct current negative pole binding post and the direct current breaker of outgoing bar, light Fu Fanglei ware electric connection detection module, direct current negative pole binding post, direct current breaker and outgoing bar, drive power supply electric connection detection module and light Fu Fanglei ware; be provided with the master controller that has the display screen on the case lid, the lower extreme of box is provided with a plurality of wiring subassemblies, wiring subassembly includes bus line wiring subassembly and power wiring subassembly, bus line wiring subassembly stretches into the inside one end of box is connected with direct current positive pole binding post and direct current negative pole binding post through the connecting wire, power wiring subassembly stretches into the inside one end of box is through connecting wire and drive power supply electric connection.
Compared with the prior art, the header box provided by the utility model has the beneficial effects that:
the part of the wiring assembly extending into the box body is electrically connected with the direct current anode wiring terminal, the direct current cathode wiring terminal or the driving power supply through the connecting wire, so that the wiring assembly is not required to be connected to the corresponding wiring terminal in a screw mode after a line passes through the threading hole independently during field installation, the field construction time wiring time is effectively saved, and the wiring work efficiency can be effectively improved through the wiring assembly.
Further, the wiring assembly comprises a hollow connecting cylinder and two connectors which are detachably connected inside the hollow connecting cylinder, the hollow connecting cylinder is made of an insulating material, the hollow connecting cylinder comprises a long cylinder part, a short cylinder part and an annular boss part, the long cylinder part and the short cylinder part are integrally formed, the annular boss part is arranged at the joint of the long cylinder part and the short cylinder part, and a rotatable conductive part is arranged inside the annular boss part; through connector and hollow connecting cylinder detachable connected mode, effectual improvement wiring convenience is fixed the connector effectual through rotatable conductive part and annular boss portion cooperation to guarantee the switch on of two connectors.
Further, the conductive component comprises an inner ring part, a conductive plate and a conductive column, wherein the conductive plate is arranged at the middle position of the inner wall of the inner ring part, the conductive column is longitudinally and integrally formed at the center position of the conductive plate, the outer side wall of the inner ring part is connected with two connecting plates made of insulating materials, and the other end of each connecting plate is integrally formed with an outer ring part; therefore, the inner ring part, the conductive plate and the conductive column can be driven to rotate by rotating the outer ring part, so that the whole rotation of the conductive part is realized.
Further, an inner annular groove with the diameter larger than the inner diameter of the long barrel part is formed in the inner wall of the annular boss part, the inner annular part is slidably connected in the inner annular groove, an outer annular groove is formed in the outer wall of the annular boss part, the outer annular part is slidably connected in the outer annular groove, and a strip-shaped hole for the connecting plate to move is formed in the annular boss part wall between the inner annular groove and the outer annular groove; thereby providing a rotational space for the conductive member.
Further, the connector is including being columniform conductive connector body, the first spliced eye that supplies conductive post male is offered towards the one end of conductive plate to conductive connector body, conductive connector body's one end is provided with at least three conductive cardboard, conductive cardboard can radially slide back and forth along conductive connector body, conductive cardboard is inwards sunken arcwall face towards conductive connector body central line's one end, conductive cardboard is outwards outstanding arcwall face towards conductive connector body central line's one end.
Further, the lower extreme of electrically conductive cardboard is provided with the type of falling T slider, set up on the electrically conductive connector body with the spout that electrically conductive cardboard quantity corresponds, the type of falling T slider gliding connection is in the spout, the one end of type of falling T slider towards electrically conductive connector body central line is connected with the spring, the other end of spring is contradicted on the spout is close to a lateral wall of electrically conductive connector body central line under the elasticity effect of spring, electrically conductive cardboard has the trend that the back moved to electrically conductive connector body central line department.
Further, the inner walls of the inner ring parts, which are positioned on the two sides of the conductive plates, are provided with arc-shaped guide surfaces corresponding to the number of the conductive clamping plates, and the wall thickness of the arc-shaped guide surfaces and the outer side surfaces of the inner ring parts is gradually increased so that the conductive clamping plates move towards or away from the center line of the conductive connector body in the process of rotating the inner ring parts.
Further, the plurality of conductive clamping plates are arranged on the conductive connector body in an annular array, and a circle formed by encircling an extension line of an arc-shaped surface at one end, close to the plurality of conductive clamping plates, is concentric with the first inserting hole; the second jack is offered to the one end of electrically conductive connector body back to electrically conductive cardboard, just electrically conductive connector body outer wall part that the second jack corresponds is not connected with electrically conductive connector body part to electrically conductive connector body outer wall that the second jack corresponds has offered the opening along its vertically, electrically conductive connector body outside part cladding has the insulating layer.
The photovoltaic system comprises the bus box, wherein a fingerprint coded lock electrically connected with the main controller is arranged on a box cover of the bus box, the main controller is in communication connection with the detection module, and the main controller is also connected with a wireless communication module; the plurality of the junction boxes are connected to the same inverter through wires, the inverter is connected with a transformer, and an output circuit of the transformer is connected with a power supply grid.
Further, a two-dimensional code display area is arranged on a display screen of a main controller on a box cover of the combiner box, and two-dimensional codes displayed in the two-dimensional code display area correspond to unique information of the combiner box.
Compared with the prior art, the photovoltaic system provided by the utility model has the beneficial effects that:
the photovoltaic system provided by the utility model is convenient for information input and inquiry during the maintenance of the whole system, and effectively improves the maintenance efficiency.
Drawings
FIG. 1 is a front view of a manifold of the present utility model;
FIG. 2 is a schematic view of the manifold in an open state;
FIG. 3 is a schematic cross-sectional view of a wiring assembly according to the present utility model;
FIG. 4 is a schematic cross-sectional view of a connector according to the present utility model;
FIG. 5 is a schematic top view of the connector of the present utility model;
FIG. 6 is a schematic view of the conductive card of the present utility model in an open state;
FIG. 7 is a schematic view of a partial arcuate guide surface of an inner ring portion according to the present utility model;
fig. 8 is a schematic diagram of a photovoltaic system provided in the present utility model.
The device comprises a box body, a box cover, 3, a mounting plate, 4, a busbar, 5, a detection module, 6, a direct current anode wiring terminal, 7, a direct current cathode wiring terminal, 8, a driving power supply, 9, a light Fu Fanglei device, 10, a direct current breaker, 11, a hollow connecting cylinder, 1101, a long cylinder part, 1102, a short cylinder part, 1103, an annular boss part, 1104, an inner annular groove, 1105, an outer annular groove, 12, a connector, 1201, a conductive connector book, 1202, a conductive clamping plate, 1203, a T-shaped sliding block, 1204, a sliding groove, 1205, a spring, 1206, a first inserting hole, 1207, a second inserting hole, 1208, an insulating layer 13, a conductive component, 1301, an inner annular part, 1302, a conductive plate, 1303, a conductive column, 1304, a connecting plate, 1305, an outer annular part, 1306, an arc-shaped guide surface, 14, a fingerprint coded lock, 15, an extraction row, 16 and a main controller.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-2, a photovoltaic junction box comprises a box body 1 and a box cover 2 movably connected with the box body 1, wherein a mounting plate 3 is arranged in the box body 1, a busbar 4, a detection module 5 and a direct current anode wiring terminal 6 are sequentially arranged on the left side of the mounting plate 3 from top to bottom, a direct current cathode wiring terminal 7 is arranged on the right side of the direct current anode wiring terminal 6, a driving power supply 8 and a light Fu Fanglei device 9 which are arranged side by side are arranged on the right side of the detection module 5, a direct current breaker 10 is arranged on the right side of the light Fu Fanglei device 9, the busbar 4 is electrically connected with an outgoing line end of the detection module 5, an incoming line end of the detection module 5 is electrically connected with an outgoing line end of the direct current anode wiring terminal 6, one end of the busbar 4 is electrically connected with an outgoing line 15, the other end of the outgoing line 15 is electrically connected with the direct current cathode wiring terminal 7 and the direct current breaker 10, the light Fu Fanglei device 9 is electrically connected with the detection module 5, the direct current cathode wiring terminal 7, the direct current breaker 10 and the outgoing line 15, and the driving power supply Fu Fanglei are electrically connected with the detection module 5; the main controller 16 with a display screen is arranged on the box cover, a plurality of wiring assemblies are arranged at the lower end of the box body 1, each wiring assembly comprises a bus line wiring assembly and a power supply wiring assembly, each bus line wiring assembly stretches into one end inside the box body 1 and is connected with the corresponding direct current anode wiring terminal 6 and the corresponding direct current cathode wiring terminal 7 through connecting wires, and one end inside the box body 1 stretches into the corresponding power supply wiring assembly and is electrically connected with the driving power supply 8 through the connecting wires.
As shown in fig. 3, the wiring assembly includes a hollow connection cylinder 11 and two connectors 12 detachably connected inside the hollow connection cylinder 11, the hollow connection cylinder 11 is made of an insulating material, the hollow connection cylinder 11 includes a long cylinder portion 1101, a short cylinder portion 1102, and an annular boss portion 1103, the long cylinder portion 1101 and the short cylinder portion 1102 are integrally formed, the annular boss portion 1103 is disposed at a junction between the long cylinder portion 1101 and the short cylinder portion 1102, and a rotatable conductive member 13 is disposed inside the annular boss portion 1103;
in the utility model, the long cylinder 1101 is in threaded connection with the lower end of the box body 1, and the long cylinder 1101 extends into the box body 1; the long cylinder 1101 is used for connecting connectors 12 connected with the connecting wires of the direct current anode connecting terminal 6, the direct current cathode connecting terminal 7 or the driving power supply 8 inside the box 1, the short cylinder 1102 is used for connecting connectors 12 connected with the connecting wires connected with the photovoltaic panel assembly, and the two connectors 12 are conducted inside the annular boss 1103; the outer diameter of the annular boss portion 1103 is larger than the outer diameter of the long tube portion 1101, thereby facilitating the assembly and disassembly operations of the hollow connecting tube 11 by the annular boss portion 1103.
As shown in fig. 3, the conductive member 13 includes an inner ring portion 1301, a conductive plate 1302, and a conductive post 1303, where the conductive plate 1302 is disposed at a middle position of an inner wall of the inner ring portion 1301, the conductive post 1303 is integrally formed longitudinally at a center position of the conductive plate 1302, an outer side wall of the inner ring portion 1301 is connected with two connection plates 1304 made of insulating materials, and an outer ring portion 1305 is integrally formed at another end of the connection plates 1304; an inner ring groove 1104 with a diameter larger than the inner diameter of the long barrel 1101 is formed in the inner wall of the annular boss 1103, the inner ring 1301 is slidably connected in the inner ring groove 1104, an outer ring groove 1105 is formed in the outer wall of the annular boss 1103, the outer ring 1305 is slidably connected in the outer ring groove 1105, and a strip-shaped hole for the movement of the connecting plate 1304 is formed in the wall of the annular boss 1103 between the inner ring groove 1104 and the outer ring groove 1105;
in the utility model, the connecting plate 1304 and the outer ring 1305 are both made of insulating materials, and the connecting plate and the hollow connecting cylinder 11 are made of insulating materials, so that the insulation can be effectively performed; since the wall of the annular boss portion 1103 between the inner annular groove 1104 and the outer annular groove 1105 is provided with a bar-shaped hole for the movement of the connecting plate 1304, when the outer annular portion 1305 is rotated, the connecting plate 1304 can be driven to rotate transversely in the bar-shaped hole, and the inner annular portion 1301 can be driven to rotate.
As shown in fig. 4, the connector 12 includes a conductive connector body 1201 having a cylindrical shape, a first jack hole 1206 into which the conductive post 1303 is inserted is provided at one end of the conductive connector body 1201 facing the conductive plate 1302, and a diameter of the first jack hole 1206 is larger than a diameter of the conductive post 1303; one end of the conductive connector body 1201 is provided with at least three conductive clamping plates 1202, the conductive clamping plates 1202 can slide back and forth along the radial direction of the conductive connector body 1201, one end of the conductive clamping plates 1202 facing the center line of the conductive connector body 1201 is an inward concave arc surface, and one end of the conductive clamping plates 1202 facing away from the center line of the conductive connector body 1201 is an outward protruding arc surface;
in the utility model, when the connector 12 is completely connected into the hollow connecting cylinder 11, the conductive post 1303 is closely contacted with the connector body 1201 after being inserted into the first insertion hole 1206, so as to realize the conduction between the conductive post 1303 and the connector body 1201, and further maintain the conduction between the conductive component 13 and the conductive connector body 1201; when the connector 12 is completely connected into the hollow connecting cylinder 11, the conductive clamping plate 1202 is embedded into the mounting groove formed by the inner ring part 1301 and the conductive plate 1302, and when the conductive clamping plate 1202 partially slides out of the outer side surface of the connector body 1201, the conductive clamping plate 1202 is clamped in the inner ring groove 1104, and at the moment, the connector 12 is fixed in the hollow connecting cylinder 11 and cannot be pulled out.
As shown in fig. 4, the lower end of the conductive clamping plate 1202 is provided with an inverted T-shaped slider 1203, the conductive connector body 1201 is provided with a plurality of sliding grooves 1204 corresponding to the conductive clamping plates 1202, the inverted T-shaped slider 1203 is slidably connected in the sliding grooves 1204, one end of the inverted T-shaped slider 1203 facing the center line of the conductive connector body 1201 is connected with a spring 1205, the other end of the spring abuts against a side wall of the sliding groove 1204, which is close to the center line of the conductive connector body 1201, under the action of the elasticity of the spring 1205, the conductive clamping plate 1202 has a moving trend back to the center line of the conductive connector body 1201, so that under the action of the elasticity of the elastic spring 1205 and without applying external force, the conductive clamping plate 1202 partially extends out of the outer side surface of the connector body 1201, thereby ensuring that when the connector 12 is completely installed in the hollow connecting cylinder 11, the connector 12 is fixed in the hollow connecting cylinder 11.
As shown in fig. 7, the inner walls of the inner ring portion 1301 on both sides of the conductive plate 1302 are provided with arc-shaped guiding surfaces 1306 corresponding to the number of the conductive clamping plates 1202, and the wall thickness of the arc-shaped guiding surfaces 1306 and the outer side surface of the inner ring portion 1301 is gradually increased, so that the conductive clamping plates 1202 move towards or away from the center line of the conductive connector body 1201 in the process of rotating the inner ring portion 1301; due to the arrangement of the arc-shaped guide surface 1306, in the process of rotating the inner ring part 1301, the conductive clamping plate 1202 moves towards or away from the central line of the conductive connector body 1201 under the drive of the arc-shaped guide surface 1306, when the end part of the conductive clamping plate 1202 corresponds to the thin wall of the arc-shaped guide surface 1306, the conductive clamping plate 1202 is clamped in the inner annular groove 1104, and when the inner ring part 1301 is rotated until the end part of the conductive clamping plate 1202 corresponds to the thick wall of the arc-shaped guide surface 1306, the conductive clamping plate 1202 moves towards the central part of the conductive connector body 1201 until the end part of the conductive clamping plate 1202 is flush with the lateral outer side surface of the conductive connector body 1201, so that the conductive clamping plate 1202 is separated from the inner annular groove 1104;
in the present utility model, the thickness variation directions of the arc-shaped guiding surfaces on the inner ring portions 1301 on the same side of the conductive plate 1302 are the same, and the thickness variation directions of the arc-shaped guiding surfaces on the inner ring portions 1301 on both sides of the conductive plate 1302 can ensure that the conductive clamping plates 1202 on both sides of the conductive plate 1302 synchronously move toward the central axis of the conductive connector body 1201 or away from the central axis of the conductive connector body 1201 in the process of the outer ring portion 1305 driving the inner ring portion 1301 to rotate.
As shown in fig. 5-6, the plurality of conductive clamping plates 1202 are arranged on the conductive connector body 1201 in a ring-shaped array, and a circle surrounded by an extension line of an arc surface at one end of the plurality of conductive clamping plates 1202 close to each other is concentric with the first jack 1206; when the inverted T-shaped slider 1203 abuts against the side wall of the chute 1204 facing away from the center line of the conductive connector body 1201, the original formed by extending the arc surface of the end of the plurality of conductive clamping plates 1202 close to each other and surrounding the first insertion hole 1206 is overlapped, at this time, the conductive clamping plates are not contacted with the conductive posts 1303, and when the side surface of the end of the conductive clamping plate 1202 is flush with the side surface of the conductive connector body 1201, the posts 1303 of the conductive clamping plates 1202 Yu Daodian have a certain gap or are contacted with each other;
a second plugging hole 1207 is formed at one end of the conductive connector body 1201 opposite to the conductive card 1202, an outer wall portion of the conductive connector body 1201 corresponding to the second plugging hole 1207 is not connected with the conductive connector body 1201, a gap is formed along the longitudinal direction of the outer wall of the conductive connector body 1201 corresponding to the second plugging hole 1207, and an insulating layer is coated on an outer portion of the conductive connector body 1201; the second plugging hole 1207 is used for inserting a conductive terminal (a metal end of a conductive wire) of a connection line of the photovoltaic panel assembly, when the conductive terminal is inserted into the second plugging hole 1207, a tool is used for pressing the position of the conductive connector body 1201 corresponding to the second plugging hole 1207 so as to fixedly connect the conductive terminal, and the insulation layer is arranged so as to prevent the connector body 1201 from leaking electricity to the outside.
When the photovoltaic junction box is produced, all circuit modules in the whole photovoltaic junction box are completely installed, a hollow cylinder 11 stretches into a long cylinder part 1101 in the box body 1 and is inserted into a connector 12, the other end of the connector 12 is connected to a corresponding direct-current anode wiring terminal 6, a direct-current cathode wiring terminal 7 and a driving power supply 8 through a circuit, and when the photovoltaic junction box is installed on site, a conductive end of a photovoltaic assembly connecting wire or a conductive end of a power supply is inserted into a second inserting hole 1207 and then fixed by extruding a conductive connector body 1201 corresponding to the second inserting hole 1207; then the connector 12 is inserted into the short cylinder 1102, before the connector 12 is inserted, the conductive clamping plate 1202 of the connector 12 is slid to the central line position of the conductive connector body 1201, so that the connector 12 can be smoothly inserted into the short cylinder 1102, after the connector 12 is inserted into the bottom of the short cylinder 1102, under the action of the elastic force of the elastic spring 1105, the conductive clamping plate 1202 is released, so that the end part of the conductive clamping plate 1202 is clamped into the inner ring groove 1104, and the connector 12 is fixed; when the line needs to be removed for maintenance, the outer ring portion 1305 is rotated to enable the inner ring portion 1302 to be rotated from the thin wall portion corresponding to the conductive clamping plate 1202 to the thick wall portion, so that the conductive clamping plate 1202 moves into the conductive connector body 1201, and the connector 12 can be pulled out smoothly.
As shown in fig. 8, a photovoltaic system includes the aforementioned photovoltaic combiner box, a fingerprint coded lock 14 electrically connected with the master controller 16 is installed on the box cover 2 of the photovoltaic combiner box, the master controller 16 is in communication connection with the detection module 5, and the master controller 16 is also connected with a wireless communication module; the plurality of the combiner boxes 2 are connected to the same inverter through wires, the inverter is connected with a transformer, and an output line of the transformer is connected with a power supply grid.
According to the utility model, the display screen of the main controller 16 on the box cover 2 of the photovoltaic confluence box is provided with the two-dimension code display area, the two-dimension code displayed in the two-dimension code display area corresponds to the unique information of the confluence box, when a patrol personnel patrol the photovoltaic system, the information of the confluence box is obtained by scanning the two-dimension code on the display screen, and the overhaul information of the photovoltaic confluence box is synchronously uploaded to the upper computer.
According to the photovoltaic system, when the photovoltaic junction box is installed, the wiring assembly is arranged on the photovoltaic junction box, so that the junction operation of the junction box is facilitated; in addition, in the process of installing or overhauling the photovoltaic system, the mobile terminal can scan the two-dimensional code on the display screen of the main controller 16 on the photovoltaic combiner box, and input the information such as the number, the detection information, the geographic position, the number of the photovoltaic module of service and the like of the photovoltaic combiner box, so that the information corresponding to the photovoltaic combiner box is uniformly bound to the information corresponding to the two-dimensional code label.
Although the present utility model has been described 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, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (8)
1. The utility model provides a photovoltaic combiner box, includes the box and with box swing joint's case lid, be provided with the mounting panel in the box, busbar, detection module and direct current positive pole binding post are installed in proper order to the left side top-down of mounting panel, direct current positive pole binding post right side is provided with direct current negative pole binding post, detection module right side is provided with drive power supply and light Fu Fanglei ware of installing side by side, the right side of photovoltaic lightning protection device is provided with the direct current breaker, busbar electric connection detection module's outlet terminal, detection module's inlet wire end electric connection direct current positive pole binding post's outlet terminal, the one end electric connection of busbar has the outgoing bar, the other end electric connection direct current negative pole binding post and the direct current breaker of outgoing bar, light Fu Fanglei ware electric connection detection module, direct current negative pole binding post, direct current breaker and outgoing bar, drive power supply electric connection detection module and light Fu Fanglei ware; the method is characterized in that: the main controller with the display screen is arranged on the box cover, a plurality of wiring assemblies are arranged at the lower end of the box body, each wiring assembly comprises a bus line wiring assembly and a power supply wiring assembly, one end of each bus line wiring assembly extending into the box body is connected with a direct current anode wiring terminal and a direct current cathode wiring terminal through connecting wires, and one end of each power supply wiring assembly extending into the box body is electrically connected with a driving power supply through connecting wires; the wiring assembly comprises a hollow connecting cylinder and two connectors which are detachably connected inside the hollow connecting cylinder, the hollow connecting cylinder is made of an insulating material and comprises a long cylinder part, a short cylinder part and an annular boss part, the long cylinder part and the short cylinder part are integrally formed, the annular boss part is arranged at the joint of the long cylinder part and the short cylinder part, and a rotatable conductive part is arranged inside the annular boss part; the conductive component comprises an inner ring part, a conductive plate and a conductive column, wherein the conductive plate is arranged at the middle position of the inner wall of the inner ring part, the conductive column is longitudinally and integrally formed at the center position of the conductive plate, the outer side wall of the inner ring part is connected with two connecting plates made of insulating materials, and the other end of each connecting plate is integrally formed with an outer ring part.
2. The photovoltaic combiner box according to claim 1, wherein: the inner wall of the annular boss part is provided with an inner annular groove with the diameter larger than the inner diameter of the long barrel part, the inner annular part is slidably connected in the inner annular groove, the outer wall of the annular boss part is provided with an outer annular groove, the outer annular part is slidably connected in the outer annular groove, and a strip-shaped hole for the connecting plate to move is formed in the annular boss part wall between the inner annular groove and the outer annular groove.
3. The photovoltaic combiner box according to claim 2, wherein: the connector is including being columniform conductive connector body, the first spliced eye that supplies conductive post male is offered to conductive connector body towards the one end of current-conducting plate, conductive connector body's one end is provided with three at least conductive cardboard, conductive cardboard can radially make a round trip to slide along conductive connector body, conductive cardboard is inwards sunken arcwall face towards conductive connector body central line's one end, conductive cardboard is outwards outstanding arcwall face towards conductive connector body central line's one end dorsad.
4. A photovoltaic combiner box according to claim 3, characterized in that: the lower extreme of electrically conductive cardboard is provided with the type of falling T slider, set up on the electrically conductive connector body with the spout that electrically conductive cardboard quantity corresponds, the type of falling T slider sliding connection is in the spout, the one end of type of falling T slider towards electrically conductive connector body central line is connected with the spring, the other end of spring is contradicted on the spout is close to a lateral wall of electrically conductive connector body central line under the elasticity effect of spring, electrically conductive cardboard has the trend that back to electrically conductive connector body central line department removed.
5. The photovoltaic combiner box according to claim 4, wherein: the inner wall of the inner ring part, which is positioned at two sides of the conductive plate, is provided with arc-shaped guide surfaces corresponding to the number of the conductive clamping plates, and the wall thickness of the arc-shaped guide surfaces and the outer side surface of the inner ring part is gradually increased so that the conductive clamping plates move towards or away from the center line of the conductive connector body in the process of rotating the inner ring part.
6. The photovoltaic combiner box according to claim 5, wherein: the plurality of conductive clamping plates are arranged on the conductive connector body in an annular array, and a circle formed by encircling extension lines of arc-shaped surfaces of one ends, close to the plurality of conductive clamping plates, is concentric with the first inserting hole; the second jack is offered to the one end of electrically conductive connector body back to electrically conductive cardboard, just electrically conductive connector body outer wall part that the second jack corresponds is not connected with electrically conductive connector body part to electrically conductive connector body outer wall that the second jack corresponds has offered the opening along its vertically, electrically conductive connector body outside part cladding has the insulating layer.
7. A photovoltaic system comprising the photovoltaic junction box of any one of claims 1-6, characterized in that: the fingerprint coded lock is arranged on the box cover of the confluence box and is electrically connected with the main controller, the main controller is in communication connection with the detection module, and the main controller is also connected with a wireless communication module; the plurality of the junction boxes are connected to the same inverter through wires, the inverter is connected with a transformer, and an output circuit of the transformer is connected with a power supply grid.
8. The photovoltaic system of claim 7, wherein: the display screen of the main controller on the box cover of the collecting box is provided with a two-dimension code display area, the two-dimension code displayed in the two-dimension code display area corresponds to the unique information of the collecting box, when a patrol personnel patrol the photovoltaic system, the information of the collecting box is obtained by scanning the two-dimension code on the display screen, and the overhaul information of the collecting box is synchronously uploaded to the upper computer.
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| JP2002117952A (en) * | 2000-10-11 | 2002-04-19 | Yazaki Corp | Connector inspecting apparatus |
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