CN115882270B - Copper-aluminum transitional connection system for aluminum alloy photovoltaic cable - Google Patents
Copper-aluminum transitional connection system for aluminum alloy photovoltaic cable Download PDFInfo
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- CN115882270B CN115882270B CN202211534651.XA CN202211534651A CN115882270B CN 115882270 B CN115882270 B CN 115882270B CN 202211534651 A CN202211534651 A CN 202211534651A CN 115882270 B CN115882270 B CN 115882270B
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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
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- 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 invention relates to the technical field of photovoltaic power generation, in particular to a copper-aluminum transitional connection system for an aluminum alloy photovoltaic cable, which is arranged at the top end of a solar panel, wherein the solar panel is connected with an aluminum alloy photovoltaic cable joint through the copper-aluminum transitional connection system, the copper-aluminum transitional connection system comprises a wiring device, a protection device, an energy storage device, a first plug and a second plug, the wiring device and the energy storage device are respectively arranged at the front side and the rear side of the top end of the solar panel.
Description
Technical Field
The invention relates to the technical field of photovoltaic power generation, in particular to a copper-aluminum transition connection system for an aluminum alloy photovoltaic cable.
Background
Along with the development of the times, the traditional power generation technology by burning mineral energy is eliminated by more and more countries, and the new energy power generation technology starts to be valued by each country, wherein photovoltaic power generation is one of the new energy power generation technologies, solar radiation energy is directly converted into direct current electric energy through a photovoltaic cell assembly, and then the direct current electric energy is connected with a power grid through a power conversion device to transmit the electric energy to the power grid along with the new energy.
At present, in order to reduce investment cost, more and more photovoltaic power generation equipment starts to use flexible aluminum alloy cables to replace copper core photovoltaic wires, and in order to avoid the electric corrosion phenomenon, connectors which are converted by adopting a connection mode of MC 4-copper core photovoltaic wires, copper aluminum transition terminals and aluminum alloy photovoltaic wires are already appeared, but the crimping points of the connectors are too many, so that circuit faults are easy to occur, in addition, the application environment of the copper aluminum transition connection system for the photovoltaic cables is generally very bad, various terrains such as saline-alkali lands on the sea to plateau deserts and the like are even subjected to corrosion of solar radiation, rain and snow and wind and sand, the copper aluminum transition connection system for the photovoltaic cables usually cannot keep long enough service life in the environments, and finally, if the copper aluminum transition connection system for the photovoltaic cables generates spontaneous combustion phenomenon due to accidents and the like, the spontaneous combustion phenomenon can not be automatically eliminated by means of manual removal, and the development of a photovoltaic power station in China is restricted in a certain sense.
Disclosure of Invention
The invention aims to provide a copper-aluminum transition connection system for an aluminum alloy photovoltaic cable, which aims to solve the problems in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a copper aluminum transition connection system for aluminum alloy photovoltaic cable, this copper aluminum transition connection system sets up on the top of solar panel, and solar panel is connected with aluminum alloy photovoltaic cable joint through copper aluminum transition connection system, copper aluminum transition connection system includes termination, protection device, energy storage device, first plug and second plug, termination and energy storage device set up respectively in the front and back both sides on solar panel top, first plug and second plug all set up in solar panel's the outside, the one end of first plug and second plug is connected with solar panel positive and negative pole through wire and termination, the other end of first plug and second plug is connected with aluminum alloy photovoltaic cable joint through buckle and draw-in groove, protection device is provided with two sets of altogether protection device sets up respectively in the outside of first plug and second plug, and every group protection device all is connected with energy storage device through pipe and valve, through the inside temperature of energy storage device control protection device and the oxygen content of inside seal cover, induction protection device includes fixed box and induction mechanism, induction mechanism is in the outside the sealed lid, induction mechanism is setting up at the outside through the sealed lid of metal alloy photovoltaic cable joint, induction mechanism makes the outside the sealed lid.
The solar panel is an installation foundation of the solar panel, the solar panel is used for transferring current generated by the solar panel through the wiring device, the solar panel is provided with the protection device and the energy storage device, the protection device is used for isolating the aluminum alloy photovoltaic cable connector from the external environment after being connected with the first plug and the second plug, and damage to the aluminum alloy photovoltaic cable connector, the first plug and the second plug caused by external rainwater, dust and other substances is avoided.
Further, the inside of fixed box is provided with control room, linking chamber and protection room, the outside of fixed box is provided with the control frame, the inside of control room is provided with response gas and control panel, the control panel is connected with the control frame, first plug and second plug all set up in the linking chamber, the one end of linking chamber is provided with the connecting hole, the other end of linking chamber is provided with induction mechanism and movable frame, induction mechanism fixed mounting is on the inner wall of linking chamber and is connected with the control room, the movable frame passes through flexible spring pole movable mounting in the control room, the removal of induction mechanism control movable frame, the intercommunication of movable frame control linking chamber and protection room, the inside of protection room is provided with compressed gas.
According to the invention, the sealing cover is connected with the connecting hole through threads, the sealing cover is provided with the sealing ring, the outer sides of the first plug and the second plug are respectively provided with the group of convex rings, one end of the movable frame, which is close to the first plug and the second plug, is provided with the elastic block, the elastic block and the convex rings enable the movable frame to move together with the first plug and the second plug when moving, before connection, if the first plug is required to be taken out from the connecting hole, the control frame only needs to be pressed to drive the induction mechanism to work, the movable frame can move towards the connecting hole against the first plug and the second plug through the induction mechanism, when the first plug and the second plug come out from the connecting hole, a worker can connect the aluminum alloy photovoltaic cable connector with the first plug and the second plug through the clamping buckle and the clamping groove, after connection is completed, the control frame is loosened, the first plug and the second plug can be reset under the action of the flexible spring rod, and the aluminum alloy photovoltaic cable connector can enter the connecting chamber, finally, the sealing cover is installed on the connecting hole to avoid interference of the external environment, when the movable frame moves in the connecting chamber, the invention can clean the air from the connecting chamber, the local air can be prevented from entering the connecting chamber, and the insulating device can be prevented from being discharged from the outside through the connecting chamber, and the local air gap can be prevented from being released, and the local air can be discharged from the connecting device.
Further, the induction mechanism comprises a fixing frame, annular magnetic blocks, annular grooves, guide blocks and a fixed cover, wherein the annular magnetic blocks are movably mounted at one end, close to the movable frame, of the inside of the fixing frame, the fixed cover is fixedly mounted at one end, close to the movable frame, of the outside of the fixing frame, a plurality of groups of fan-shaped through holes are formed in the fixed cover, the annular magnetic blocks consist of a plurality of groups of fan-shaped magnetic blocks, the annular grooves are formed in the outer sides of the annular magnetic blocks, the guide blocks and spring guide rods are arranged in the annular grooves, the guide blocks are arranged on the spring guide rods and are fixedly connected with the annular magnetic blocks, the control chamber is connected with the annular grooves through air guide grooves, one end, close to the induction mechanism, of the movable frame is magnetic, and the annular magnetic blocks and the movable frame are mutually exclusive.
The control room is close to the one end of linking chamber and has the heat conductivity, before connecting, the staff presses the control frame and can make the inside response gas of control room enter into in the ring channel, and the guide block can take annular magnetic path rotatory this moment under the effect of gas pressure, when the fan-shaped magnetic path on the annular magnetic path overlaps with the fan-shaped through-hole on the fixed lid, because annular magnetic path and movable frame repel each other, therefore the movable frame can push up first plug and second plug and remove to the direction of connecting hole to make things convenient for the staff to link together aluminum alloy photovoltaic cable connector and first plug and second plug.
Further, two groups of conductive blocks are arranged in the annular groove, one group of conductive blocks are fixedly arranged on the spring guide rod, the other group of conductive blocks are fixedly arranged on the guide block, and the two groups of conductive blocks are connected with the energy storage device through wires.
Because the working environment of the solar panel is usually outdoors, the temperature of the gas in the protection device is a variable, the temperature in the connection chamber is changed according to the change of the temperature of the external environment, when the temperature in the connection chamber is too high, but other phenomena such as spontaneous combustion do not occur, the induced gas in the control chamber begins to expand and squeeze the guide block, so that the guide block is offset by a certain extent, the distance between the two groups of conductive blocks can change at the moment, the energy storage device has a current detection function, the conductive blocks, the solar panel and the energy storage device form a group of loops, the energy storage device can judge the distance between the two groups of conductive blocks by detecting the current input into the energy storage device, and then the temperature in the connection chamber is judged, when the temperature in the connection chamber is too high, the temperature in the protection device can be regulated by the energy storage device, so that the joint and the insulating sheath are prevented from being damaged, and short circuit or fire phenomena are caused.
Further, the one end that the linking chamber was kept away from to the protection room is provided with first ventilation groove, energy storage device includes the energy storage box, the one end that the energy storage box is close to protection device is provided with the second ventilation groove, first ventilation groove is connected through pipe and valve with the second ventilation groove, the inside of energy storage box is provided with compressed gas, compressed gas is carbon dioxide.
According to the technical scheme, before the aluminum alloy photovoltaic cable connector is connected with the first plug and the second plug, the valve is closed to prevent compressed gas in the energy storage box from leaking out, after the aluminum alloy photovoltaic cable connector is connected with the first plug and the second plug, the valve is opened, if the connector in the protection device is spontaneously ignited, the temperature in the connecting chamber is suddenly increased, at the moment, the gas in the control chamber is heated and expanded, the annular magnetic block can also rotate under the action of gas pressure to enable the movable frame to move, when the movable frame is separated from the exhaust channel, the compressed gas in the energy storage box and the protection chamber can be released, the compressed gas in the energy storage box and the protection chamber is carbon dioxide gas inert to combustion reaction, and after the compressed gas in the energy storage box and the protection chamber enters the connecting chamber, the fire disaster is prevented from spreading.
Further, the first ventilation groove and the second ventilation groove are both provided with two groups, two groups of air guide channels are arranged in the guide pipe, each group of the first ventilation groove is connected with one group of the second ventilation grooves through one group of the air guide channels, an air pump is arranged in the energy storage box, and the air outlet end of the air pump is connected with one group of the second ventilation grooves through a shunt pipe.
Through above-mentioned technical scheme, after aluminum alloy photovoltaic cable joint and first plug and second plug connection, can carry the protection indoor with the compressed gas in the energy storage box along a set of first ventilation groove, air guide passageway and second ventilation groove wherein through the air pump, then along with the atmospheric pressure in the protection indoor increases, the gas in the protection indoor can enter into the energy storage box along another set of first ventilation groove, air guide passageway and second ventilation groove, and the gas is at the in-process of flowing, and the indoor temperature of connection can be taken away to this realizes the purpose of cooling.
Further, a refrigerating plate is arranged on the inner wall of the energy storage box, and the refrigerating plate is connected with the solar panel through two groups of guide blocks.
The invention can continuously work in the daytime working process, so as to reduce the temperature of the gas in the energy storage box, avoid the condition that the temperature of the external environment is too high, the gas in the energy storage box is absorbed, the temperature in the protection chamber cannot be timely dispersed, and the refrigeration effect of the refrigeration plate is in direct proportion to the temperature of the gas in the protection device, so that the refrigeration plate still works when the external temperature is lower, and the joint and the insulating coating are damaged.
Further, the first plug includes first plug main part, first copper aluminium transition terminal and first nut, first copper aluminium transition terminal's one end is connected with first plug main part through first metal plug-in components, first copper aluminium transition terminal's the other end is connected with first nut through first rubber pad and first tightening member, the second plug includes second plug main part, second copper aluminium transition terminal and second nut, second copper aluminium transition terminal's one end is connected with second plug main part through second metal plug-in components, second copper aluminium transition terminal's the other end is connected with the second nut through second rubber pad and second tightening member.
Compared with the existing plug press-contact points, the first plug and the second plug provided by the invention are obviously reduced, the possibility of circuit faults is greatly reduced, and in addition, the first plug and the second plug provided by the invention are of a detachable structure, so that on one hand, the construction difficulty is reduced, the reliability of a circuit is improved, and on the other hand, the subsequent maintenance and replacement are convenient.
Compared with the prior art, the invention has the following beneficial effects: compared with the prior copper-aluminum transitional connection system provided with the protection device and the energy storage device, the aluminum alloy photovoltaic cable joint can be isolated from the external environment after being connected with the first plug and the second plug through the protection device, so that the damage to the aluminum alloy photovoltaic cable joint, the first plug and the second plug caused by external rainwater, dust and other substances is avoided, meanwhile, the aluminum alloy photovoltaic cable joint can release compressed gas in the protection chamber through the induction mechanism and the movable frame in the process of being connected with the first plug and the second plug, the aim of cleaning the connection chamber through the group of gas is fulfilled, the situation that impurities such as external dust enter the connection chamber from a gap of the protection device after long-time work, the insulativity of the joint and the insulation coating is reduced, and the partial discharge phenomenon is caused, the temperature in the protection device can be adjusted through the energy storage device to prevent the phenomena of ageing, coking and the like of an insulating sheath of a circuit caused by overhigh temperature in the protection device, and finally when the phenomena of spontaneous combustion and the like of a connector in the protection device occur due to accidents and the like, the gas expansion in the connecting chamber is utilized to control the release of the energy storage box and the compressed gas in the protection chamber, so that the purposes of extinguishing a fire and preventing fire spreading are achieved.
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 the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of the copper aluminum transition connection system of the present invention;
fig. 2 is a schematic view of the structure of the first plug of the present invention mounted inside the protection device;
fig. 3 is a schematic view of the structure of the second plug of the present invention mounted inside the protection device;
FIG. 4 is a schematic view of a first plug structure of the present invention;
FIG. 5 is a schematic view of a second plug structure of the present invention;
FIG. 6 is a schematic diagram of the sensing mechanism of the present invention;
FIG. 7 is a schematic view of the structure A-A of FIG. 6 in accordance with the present invention;
FIG. 8 is a schematic view of the structure of the fixed cover of the present invention;
FIG. 9 is a schematic illustration of a first plug of the present invention connected to an aluminum alloy photovoltaic cable junction;
fig. 10 is a schematic structural view of an energy storage device of the present invention.
In the figure: 1-wiring device, 2-protection device, 21-fixed box, 22-control rack, 23-control room, 231-control board, 24-connection room, 25-protection room, 26-movable rack, 27-sensing mechanism, 271-fixed rack, 2711-annular magnetic block, 2712-annular groove, 2713-guide block, 272-fixed cover, 28-sealing cover, 3-energy storage device, 31-conduit, 32-energy storage box, 33-shunt tube, 34-air pump, 4-first plug, 41-first plug body, 42-first metal insert, 43-first copper-aluminum transition terminal, 44-first rubber pad, 45-first tightening piece, 46-first nut, 5-second plug, 51-second plug body, 52-second metal insert, 53-second copper-aluminum transition terminal, 54-second rubber pad, 55-second tightening piece, 56-second nut.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-3 and 9, a copper-aluminum transitional connection system for an aluminum alloy photovoltaic cable is arranged at the top end of a solar panel, the solar panel is connected with an aluminum alloy photovoltaic cable connector through the copper-aluminum transitional connection system, the copper-aluminum transitional connection system comprises a wiring device 1, a protection device 2, an energy storage device 3, a first plug 4 and a second plug 5, the wiring device 1 and the energy storage device 3 are respectively arranged at the front side and the rear side of the top end of the solar panel, the first plug 4 and the second plug 5 are respectively arranged at the outer side of the solar panel, one ends of the first plug 4 and the second plug 5 are connected with the anode and the cathode of the solar panel through wires and the wiring device 1, the other ends of the first plug 4 and the second plug 5 are connected with the aluminum alloy photovoltaic cable connector through a buckle and a clamping groove, the protection device 2 is provided with two groups, the two groups of protection devices 2 are respectively arranged at the outer sides of the first plug 4 and the second plug 5, each group of protection devices 2 are respectively connected with the energy storage device 3 through a conduit 31 and a valve, the temperature-controlled protection device 3 is controlled by the energy storage device and the energy storage device 2, the inner temperature-sensitive device is arranged at the inner side of the sealing cover 2 and the sealing cover 28, the sealing cover 28 is arranged at the outer side of the sealing cover 28, the sealing cover 28 is respectively, the sealing cover 28 is arranged at the inner side of the sealing cover and the sealing cover 28, and the sealing cover is respectively, the sealing cover is arranged at the inner side of the sealing cover and the sealing mechanism is 28 is used in the sealing mechanism and the sealing mechanism is arranged and the sealing mechanism and has the sealing mechanism and the sealing mechanism.
The solar panel is an installation foundation of the solar panel, the solar panel is used for transferring current generated by the solar panel through the wiring device 1, the protection device 2 and the energy storage device 3 are arranged, the aluminum alloy photovoltaic cable connector is connected with the first plug 4 and the second plug 5 through the protection device 2, then the aluminum alloy photovoltaic cable connector, the first plug 4 and the second plug 5 can be isolated from the external environment, damage to the aluminum alloy photovoltaic cable connector, the first plug 4 and the second plug 5 caused by external rainwater, dust and other substances is avoided, the energy storage device 3 is connected with the solar panel, a part of current generated by the solar panel can drive the energy storage device 3 to work, the temperature in the protection device 2 can be adjusted through the energy storage device 3, so that the phenomena of ageing, coking and the like of insulating coating of a circuit caused by overhigh temperature in the protection device 2 can be prevented, and finally when the connector in the protection device 2 is spontaneously ignited due to accidents and other reasons, the oxygen content in the interior of the protection device 2 can be automatically adjusted through the energy storage device 3, so that the fire spreading phenomenon generated by spontaneous combustion of the connector can be avoided.
As shown in fig. 2, 3 and 9, the inside of the fixed box 21 is provided with a control chamber 23, a connecting chamber 24 and a protection chamber 25, the outside of the fixed box 21 is provided with a control frame 22, the inside of the control chamber 23 is provided with sensing gas and a control board 231, the control board 231 is connected with the control frame 22, the first plug 4 and the second plug 5 are both arranged in the connecting chamber 24, one end of the connecting chamber 24 is provided with a connecting hole, the other end of the connecting chamber 24 is provided with a sensing mechanism 27 and a movable frame 26, the sensing mechanism 27 is fixedly arranged on the inner wall of the connecting chamber 24 and connected with the control chamber 23, the movable frame 26 is movably arranged in the control chamber 23 through a flexible spring rod, the sensing mechanism 27 controls the movement of the movable frame 26, the connecting chamber 24 is connected with the protection chamber 25 through an exhaust passage, the outside of the movable frame 26 is provided with a sealing block, the movable frame 26 controls the communication of the connecting chamber 24 and the protection chamber 25, and the inside of the protection chamber 25 is provided with compressed gas.
According to the invention, the sealing cover 28 is connected with the connecting hole through threads, the sealing cover 28 is provided with the sealing ring, the outer sides of the first plug 4 and the second plug 5 are respectively provided with a group of convex rings, one end of the movable frame 26, which is close to the first plug 4 and the second plug 5, is provided with an elastic block, the elastic block and the convex rings enable the movable frame 26 to move together with the first plug 4 and the second plug 5 when moving, if the first plug 4 is required to be taken out of the connecting chamber 24 before connection, the control frame 22 only needs to be pressed, the control frame 22 drives the induction mechanism 27 to work, the movable frame 26 can move towards the connecting hole along the direction of the first plug 4 and the second plug 5 through the induction mechanism 27, when the first plug 4 and the second plug 5 come out of the connecting hole, a worker can connect an aluminum alloy photovoltaic cable connector with the first plug 4 and the second plug 5 through a buckle and a clamping groove, after connection is completed, the control frame 22 is released, the first plug 4 and the second plug 5 can reset under the action of a flexible spring rod, and the aluminum alloy photovoltaic cable is enabled to enter the connecting chamber 24, finally, the air cable connector is prevented from entering the connecting chamber 24, and the connecting chamber is prevented from being released from the connecting chamber 24, and the air gap is prevented from being discharged from the outside, and the air gap is prevented from being partially entering the connecting chamber 24, and the connecting chamber is protected, and the connecting device is protected from being discharged outside.
As shown in fig. 2-3 and 6-9, the induction mechanism 27 comprises a fixed frame 271, annular magnetic blocks 2711, annular grooves 2712, guide blocks 2713 and a fixed cover 272, wherein the annular magnetic blocks 2711 are movably arranged at one end, close to the movable frame 26, of the inside of the fixed frame 271, the fixed cover 272 is fixedly arranged at one end, close to the movable frame 26, of the outside of the fixed frame 271, a plurality of groups of fan-shaped through holes are formed in the fixed cover 272, the annular magnetic blocks 2711 are composed of a plurality of groups of fan-shaped magnetic blocks, annular grooves 2712 are formed in the outer sides of the annular magnetic blocks 2711, guide blocks 2713 and spring guide rods are arranged in the annular grooves 2712, the guide blocks 2713 are arranged on the spring guide rods and are fixedly connected with the annular magnetic blocks 2711, the control chamber 23 is connected with the annular grooves 2712 through air guide grooves, one end, close to the induction mechanism 27, of the annular magnetic blocks 2711 and the movable frame 26 are mutually repelled.
Before the control chamber 23 is connected, the worker presses the control frame 22 to enable the induction gas in the control chamber 23 to enter the annular groove 2712, at the moment, the guide block 2713 can rotate with the annular magnetic block 2711 under the action of gas pressure, when the sector magnetic block on the annular magnetic block 2711 is overlapped with the sector through hole on the fixed cover 272, the annular magnetic block 2711 and the movable frame 26 repel each other, and therefore the movable frame 26 can move against the first plug 4 and the second plug 5 towards the direction of the connecting hole, so that the worker can conveniently connect the aluminum alloy photovoltaic cable connector with the first plug 4 and the second plug 5.
As shown in fig. 1 and 7, two sets of conductive blocks are further disposed inside the annular groove 2712, one set of conductive blocks is fixedly mounted on the spring guide rod, the other set of conductive blocks is fixedly mounted on the guide block 2713, and the two sets of conductive blocks are connected with the energy storage device 3 through wires.
Since the working environment of the solar panel is usually outdoor, the temperature of the gas in the protection device 2 is a variable, and changes according to the change of the external environment temperature, when the temperature in the connection chamber 24 is too high, but other phenomena such as spontaneous combustion do not occur, the induced gas in the control chamber 23 begins to expand and squeeze the guide block 2713, so that a certain offset occurs on the guide block 2713, and the distance between the two groups of conductive blocks changes at the moment.
As shown in fig. 2, 3 and 10, a first ventilation groove is formed in one end, far away from the connection chamber 24, of the protection chamber 25, the energy storage device 3 comprises an energy storage box 32, a second ventilation groove is formed in one end, close to the protection device 2, of the energy storage box 32, the first ventilation groove is connected with the second ventilation groove through a conduit 31 and a valve, compressed gas is arranged in the energy storage box 32, and the compressed gas is carbon dioxide.
Through the technical scheme, before the aluminum alloy photovoltaic cable connector is connected with the first plug 4 and the second plug 5, the valve is closed to prevent the compressed gas in the energy storage box 32 from leaking out, after the aluminum alloy photovoltaic cable connector is connected with the first plug 4 and the second plug 5, the valve is opened, if the connector in the protection device 2 is spontaneously ignited by accident, the temperature in the connecting chamber 24 can be suddenly increased, the gas in the control chamber 23 is heated and expanded at the moment, the annular magnetic block 2711 can also rotate under the action of the gas pressure and enable the movable frame 26 to move, when the movable frame 26 is separated from the exhaust channel, the compressed gas in the energy storage box 32 and the protection chamber 25 can be released, the compressed gas in the invention is carbon dioxide gas inert to the combustion reaction, and after the compressed gas in the energy storage box 32 and the protection chamber 25 enters the connecting chamber 24, the fire disaster can be prevented from spreading, and meanwhile, the whole technical scheme of the invention does not need the participation of electric equipment, and the equipment can be ensured to work in a complex and severe environment.
As shown in fig. 2, 3 and 10, the first ventilation slots and the second ventilation slots are respectively provided with two groups, two groups of air guide channels are arranged in the guide pipe 31, each group of first ventilation slots is connected with one group of second ventilation slots through one group of air guide channels, an air pump 34 is arranged in the energy storage box 32, and the air outlet end of the air pump 34 is connected with one group of second ventilation slots through the shunt pipe 33.
Through the above technical scheme, after the aluminum alloy photovoltaic cable connector is connected with the first plug 4 and the second plug 5, the compressed gas in the energy storage box 32 can be conveyed into the protection chamber 25 along one group of the first ventilation grooves, the air guide channels and the second ventilation grooves through the air pump 34, then the gas in the protection chamber 25 can enter the energy storage box 32 along the other group of the first ventilation grooves, the air guide channels and the second ventilation grooves along with the increase of the air pressure in the protection chamber 25, and the temperature in the connecting chamber 24 can be taken away in the flowing process of the gas, so that the cooling purpose is realized.
As shown in fig. 2, 3 and 10, a refrigerating plate is provided on the inner wall of the storage box 32, and is connected to the solar panel through two sets of guide blocks 2713.
The invention can continuously work in the daytime working process, so as to reduce the temperature of the gas in the energy storage box 32, avoid the excessive temperature of the external environment, prevent the temperature in the protection chamber 25 from being timely dispersed after the gas in the energy storage box 32 is absorbed, and the refrigeration effect of the refrigeration plate is in direct proportion to the temperature of the gas in the protection device 2, thereby avoiding the damage of the joint and the insulating sheath caused by the fact that the refrigeration plate still works when the external temperature is lower.
As shown in fig. 4 and 5, the first plug 4 includes a first plug body 41, a first copper-aluminum transition terminal 43 and a first nut 46, one end of the first copper-aluminum transition terminal 43 is connected with the first plug body 41 through a first metal insert 42, the other end of the first copper-aluminum transition terminal 43 is connected with the first nut 46 through a first rubber pad 44 and a first tightening member 45, the first plug body 41 is connected with the first nut 46 through threads, the second plug 5 includes a second plug body 51, a second copper-aluminum transition terminal 53 and a second nut 56, one end of the second copper-aluminum transition terminal 53 is connected with the second plug body 51 through a second metal insert 52, the other end of the second copper-aluminum transition terminal 53 is connected with the second nut 56 through a second rubber pad 54 and a second tightening member 55, and the second plug body 51 is connected with the second nut 56 through threads.
Compared with the existing plug press-contact points, the first plug 4 and the second plug 5 provided by the invention are obviously reduced, the possibility of circuit faults is greatly reduced, and in addition, the first plug 4 and the second plug 5 provided by the invention are of detachable structures, so that the construction difficulty is reduced, the reliability of a circuit is improved, and the subsequent maintenance and replacement are convenient.
The working principle of the invention is as follows: when the aluminum alloy photovoltaic cable connector is required to be connected with the first plug 4 and the second plug 5, the control frame 22 is only required to be pressed, the induction gas in the control chamber 23 can be extruded into the annular groove 2712 through the control plate 231, the guide block 2713 can rotate with the annular magnetic block 2711 under the action of the gas pressure, the sector magnetic block on the annular magnetic block 2711 is overlapped with the sector through hole on the fixed cover 272, the movable frame 26 can move towards the direction of the connecting hole against the first plug 4 and the second plug 5 through the repulsive force between the annular magnetic block 2711 and the movable frame 26, at the moment, the purpose of copper-aluminum transitional connection can be realized by connecting the aluminum alloy photovoltaic cable connector with the first plug 4 and the second plug 5 by a worker, after the connection is finished, the worker releases the control frame 22, the first plug 4 and the second plug 5 can be reset under the action of the flexible spring rod, and the aluminum alloy photovoltaic cable connector enters the connecting chamber 24, finally the sealing cover 28 is arranged on the connecting hole, so that the interference of the external environment to the circuit can be avoided, in the transmission process, if the temperature in the connecting chamber 24 is influenced by the external environment to be too high, the induction gas in the control chamber 23 begins to expand and press the guide block 2713, so that a certain deviation occurs on the guide block 2713, at the moment, the refrigeration plate begins to refrigerate, so that the gas flowing in the energy storage box 32 and the protection chamber 25 can absorb the temperature in the connecting chamber 24, the damage of the connector and the insulating sheath is avoided, the short circuit or fire phenomenon is caused, if the connector in the protection device 2 is in spontaneous combustion phenomenon due to accidents, the gas heated distance in the control chamber 23 expands, the guide block 2713 can rotate under the action of the gas pressure and the annular magnetic block 2711 moves the movable frame 26, at the moment, the movable frame 26 is separated from the exhaust channel, the compressed gas in the storage box 32 and the protection chamber 25 is released, and the group of compressed gas can play a role in extinguishing fire, thereby preventing the spread of fire.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a copper aluminium transitional coupling system for aluminum alloy photovoltaic cable, this copper aluminium transitional coupling system sets up on the top of solar panel, and solar panel is connected its characterized in that with aluminum alloy photovoltaic cable joint through copper aluminium transitional coupling system: the copper-aluminum transitional connection system comprises a wiring device (1), a protection device (2), an energy storage device (3), a first plug (4) and a second plug (5), wherein the wiring device (1) and the energy storage device (3) are respectively arranged on the front side and the rear side of the top end of a solar panel, the first plug (4) and the second plug (5) are respectively arranged on the outer side of the solar panel, one ends of the first plug (4) and the second plug (5) are connected with the anode and the cathode of the solar panel through wires and the wiring device (1), the other ends of the first plug (4) and the second plug (5) are connected with an aluminum alloy photovoltaic cable connector through a buckle and a clamping groove, the protection device (2) are provided with two groups, the protection device (2) are respectively arranged on the outer sides of the first plug (4) and the second plug (5), each group of protection device (2) is connected with the energy storage device (3) through a guide pipe (31) and a valve, the temperature of the protection device (4) and the inside of the protection device (3) are controlled through the energy storage device (3) and the oxygen content of the protection device (2) are controlled, the oxygen content of the protection device and the oxygen sensor (21) are arranged inside an induction mechanism (27) and a sealing cover (27) are arranged inside an induction mechanism (27), the temperature detection is carried out through the induction mechanism (27), and the protection device (2) is isolated from the outside environment through the sealing cover (28);
the inside of fixed box (21) is provided with control room (23), link chamber (24) and protection room (25), the outside of fixed box (21) is provided with control cabinet (22), the inside of control room (23) is provided with response gas and control panel (231), control panel (231) are connected with control cabinet (22), first plug (4) and second plug (5) all set up in link chamber (24), the one end of link chamber (24) is provided with the connecting hole, the other end of link chamber (24) is provided with sensing mechanism (27) and movable frame (26), sensing mechanism (27) fixed mounting is on the inner wall of link chamber (24) and is connected with control room (23), movable frame (26) are through flexible spring bar movable mounting in control room (23), the removal of movable frame (26) is controlled to sensing mechanism (27), the intercommunication of link chamber (24) and protection room (25) is provided with to movable frame (26), the inside of protection room (25) is provided with the compression.
The induction mechanism (27) comprises a fixing frame (271), annular magnetic blocks (2711), annular grooves (2712), guide blocks (2713) and a fixed cover (272), wherein the annular magnetic blocks (2711) are movably arranged at one end, close to a movable frame (26), of the inside of the fixing frame (271), the fixed cover (272) is fixedly arranged at one end, close to the movable frame (26), of the outside of the fixing frame (271), a plurality of groups of fan-shaped through holes are formed in the fixed cover (272), the annular magnetic blocks (2711) are formed by a plurality of groups of fan-shaped magnetic blocks, annular grooves (2712) are formed in the outer sides of the annular magnetic blocks (2711), the guide blocks (2713) and spring guide rods are arranged in the annular grooves (2712), the guide blocks (2713) are arranged on the spring guide rods and are fixedly connected with the annular magnetic blocks (2711), and one end, close to the induction mechanism (27), of the movable frame (26) is provided with magnetism through an air guide groove;
two groups of conductive blocks are further arranged in the annular groove (2712), one group of conductive blocks is fixedly arranged on the spring guide rod, the other group of conductive blocks is fixedly arranged on the guide block (2713), and the two groups of conductive blocks are connected with the energy storage device (3) through leads;
the protection device comprises a protection chamber (25), a connecting chamber (24) and an energy storage device (3), wherein a first ventilation groove is formed in one end, far away from the connecting chamber (24), of the protection chamber, the energy storage device (3) comprises an energy storage box (32), a second ventilation groove is formed in one end, close to the protection device (2), of the energy storage box (32), the first ventilation groove is connected with the second ventilation groove through a guide pipe (31) and a valve, compressed gas is arranged in the energy storage box (32), and the compressed gas is carbon dioxide;
the inner wall of the energy storage box (32) is provided with a refrigeration plate, and the refrigeration plate is connected with the solar panel through two groups of guide blocks (2713).
2. The copper-aluminum transition connection system for aluminum alloy photovoltaic cables according to claim 1, wherein: the first ventilation grooves and the second ventilation grooves are both provided with two groups, two groups of air guide channels are arranged in the guide pipe (31), each group of the first ventilation grooves are connected with one group of the second ventilation grooves through one group of the air guide channels, an air pump (34) is arranged in the energy storage box (32), and the air outlet end of the air pump (34) is connected with one group of the second ventilation grooves through a shunt pipe (33).
3. The copper-aluminum transition connection system for aluminum alloy photovoltaic cables according to claim 2, wherein: the first plug (4) comprises a first plug main body (41), a first copper-aluminum transition terminal (43) and a first nut (46), one end of the first copper-aluminum transition terminal (43) is connected with the first plug main body (41) through a first metal plug-in unit (42), the other end of the first copper-aluminum transition terminal (43) is connected with the first nut (46) through a first rubber pad (44) and a first tightening piece (45), the second plug (5) comprises a second plug main body (51), a second copper-aluminum transition terminal (53) and a second nut (56), one end of the second copper-aluminum transition terminal (53) is connected with the second plug main body (51) through a second metal plug-in unit (52), and the other end of the second copper-aluminum transition terminal (53) is connected with the second nut (56) through a second rubber pad (54) and a second tightening piece (55).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211534651.XA CN115882270B (en) | 2022-12-02 | 2022-12-02 | Copper-aluminum transitional connection system for aluminum alloy photovoltaic cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211534651.XA CN115882270B (en) | 2022-12-02 | 2022-12-02 | Copper-aluminum transitional connection system for aluminum alloy photovoltaic cable |
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| CN115882270B true CN115882270B (en) | 2023-10-10 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008177078A (en) * | 2007-01-19 | 2008-07-31 | Itogumi Mokuzai Kk | Connector structure of solar cell module |
| CN101877466A (en) * | 2009-04-29 | 2010-11-03 | 无锡尚德太阳能电力有限公司 | Photovoltaic system, junction box and voltage conversion device thereof |
| CN217607035U (en) * | 2022-05-11 | 2022-10-18 | 江苏国嘉导体技术科技有限公司 | Photovoltaic connector for aluminum alloy core direct current cable |
-
2022
- 2022-12-02 CN CN202211534651.XA patent/CN115882270B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008177078A (en) * | 2007-01-19 | 2008-07-31 | Itogumi Mokuzai Kk | Connector structure of solar cell module |
| CN101877466A (en) * | 2009-04-29 | 2010-11-03 | 无锡尚德太阳能电力有限公司 | Photovoltaic system, junction box and voltage conversion device thereof |
| CN217607035U (en) * | 2022-05-11 | 2022-10-18 | 江苏国嘉导体技术科技有限公司 | Photovoltaic connector for aluminum alloy core direct current cable |
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| CN115882270A (en) | 2023-03-31 |
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