CN115882270A - Copper-aluminum transition connection system for aluminum alloy photovoltaic cable - Google Patents
Copper-aluminum transition connection system for aluminum alloy photovoltaic cable Download PDFInfo
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- CN115882270A CN115882270A CN202211534651.XA CN202211534651A CN115882270A CN 115882270 A CN115882270 A CN 115882270A CN 202211534651 A CN202211534651 A CN 202211534651A CN 115882270 A CN115882270 A CN 115882270A
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- 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 transition 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 transition connection system, the copper-aluminum transition connection system comprises a wiring device, a protection device, an energy storage device, a first plug and a second plug, and 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
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 is emphasized by all countries, wherein the photovoltaic power generation is one of the new energy power generation technologies, and is characterized in that solar radiation energy is directly converted into direct current electric energy through a photovoltaic cell module, and then the direct current electric energy is connected with a power grid through a power conversion device, and the electric energy is transmitted 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 an electric corrosion phenomenon, connectors which convert by using a connection mode of MC 4-copper core photovoltaic wires-copper aluminum transition terminals-aluminum alloy photovoltaic wires have appeared, but circuit faults are easy to appear due to too many crimping points of the connectors, in addition, the application environment of the current copper aluminum transition connection system for photovoltaic cables is generally very bad, various terrains from seaside to plateau desert and the like exist, and even the corrosion of solar radiation, rain, snow and wind and sand is still needed to be suffered, but the current copper aluminum transition connection system for photovoltaic cables can not keep enough long service life in the environments, and finally, if accidents and the like cause the spontaneous combustion phenomenon of the photovoltaic cable transition connection system, the current copper aluminum transition connection system can only depend on manual treatment, and can not automatically eliminate fire, thereby restricting the investment development of the photovoltaic power station in China 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 technology.
In order to solve the technical problems, the invention provides the following technical scheme: the copper-aluminum transition connection system for the 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 joint through the copper-aluminum transition connection system, the copper-aluminum transition 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 arranged on the front side and the rear side of the top end of the solar panel respectively, the first plug and the second plug are arranged on the outer side of the solar panel respectively, one end of the first plug and one end of the second plug are connected with the positive electrode and the negative electrode of the solar panel through wires and the wiring device, the other end of the first plug and the other end of the second plug are connected with the aluminum alloy photovoltaic cable joint through buckles and clamping grooves, the protection device is provided with two groups, the protection device is arranged on the outer side of the first plug and the second plug respectively, the protection device is connected with the energy storage device through a guide pipe and a valve, the energy storage device controls the temperature inside of the protection device and the oxygen content inside of the protection device, the protection device comprises a fixed box, an induction mechanism and a sealing cover, and an environment detection device is used for isolating the photovoltaic cable.
The solar panel is an installation base of the invention, the current generated by the solar panel is transferred through the wiring device, the solar photovoltaic cable connector is isolated from the external environment after being connected with the first plug and the second plug through the protection device, and the damage of external rainwater, dust and other substances to the aluminum alloy photovoltaic cable connector, the first plug and the second plug is avoided.
Further, the inside of fixed box is provided with control room, junction box and guard 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 junction box, the one end of junction box is provided with the connecting hole, the other end of junction box is provided with response mechanism and adjustable shelf, response mechanism fixed mounting just is connected with the control room on the inner wall of junction box, the adjustable shelf passes through flexible spring pole movable mounting in the control room, the removal of response mechanism control adjustable shelf, the intercommunication of adjustable shelf control junction box and guard room, the inside of guard room is provided with compressed gas.
According to the invention, the sealing cover is connected with the connecting hole through a thread, the sealing cover is provided with the sealing ring, a group of convex rings are arranged on the outer sides of the first plug and the second plug, one end of the movable frame, which is close to the first plug and the second plug, is provided with the elastic block, the movable frame can drive the first plug and the second plug to move together through the elastic block and the convex rings when moving, if the first plug needs to be taken out from the connecting chamber before connection, only the control frame needs to be pressed, the control frame drives the induction mechanism to work, the movable frame can push the first plug and the second plug to move towards the connecting hole 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 a buckle and a clamping groove, after connection is completed, the control frame is loosened, the first plug and the second plug can reset under the action of the flexible spring rod, the aluminum alloy photovoltaic cable connector can enter the connecting chamber, finally, so that the sealing cover is installed on the connecting hole to avoid interference of the external environment, when the movable frame moves, the movable frame can release compressed gas, the gas can release, the local gas can release, the insulating gas in the connecting chamber, and the insulating connection device can be used for avoiding the connection for reducing the connection purpose of removing the foreign matter from the insulating connection after the connection.
Further, induction mechanism includes mount, annular magnetic path, ring channel, guide block and fixed lid, annular magnetic path movable mounting is close to the one end of adjustable shelf in the inside of mount, fixed lid fixed mounting is close to the one end of adjustable shelf in the outside of mount, fixed covering is provided with a plurality of groups fan-shaped through-holes, the annular magnetic path comprises a plurality of groups fan-shaped magnetic path, the outside of annular magnetic path is provided with the ring channel, the inside of ring channel is provided with guide block and spring guide, the guide block setting on spring guide and with annular magnetic path fixed connection, the control room is connected with the ring channel through the air guide groove, the one end that the adjustable shelf is close to induction mechanism has magnetism, annular magnetic path and adjustable shelf repulsion each other.
The control chamber is close to the one end of joining the chamber and has the heat conductivity, before connecting, the staff presses down the control frame and can make the inside response gas of control chamber enter into the ring channel, the guide block can take annular magnetic block rotatory under the effect of gas pressure this moment, when the fan-shaped magnetic block on the annular magnetic block overlaps with the fan-shaped through-hole that fixed was covered, because annular magnetic block and adjustable shelf repulsion each other, consequently the adjustable shelf can push up first plug and the direction removal of second plug to the connecting hole, in order to make things convenient for the staff to be in the same place aluminum alloy photovoltaic cable joint with first plug and second plug connection.
Furthermore, two groups of conducting blocks are arranged inside the annular groove, one group of conducting blocks is fixedly arranged on the spring guide rod, the other group of conducting blocks is fixedly arranged on the conducting blocks, and the two groups of conducting blocks are connected with the energy storage device through wires.
The working environment of the solar panel is usually outdoor, so that the temperature of gas inside the protection device is variable and changes according to the change of the temperature of the external environment, when the temperature in the connection chamber is overhigh but other phenomena such as spontaneous combustion and the like do not occur, the induction gas inside the control chamber begins to expand and extrude the guide blocks, so that the guide blocks deviate to a certain extent, and the distance between the two groups of conductive blocks can change.
Furthermore, one end of the protection chamber, which is far away from the connection chamber, is provided with a first vent groove, the energy storage device comprises an energy storage box, one end of the energy storage box, which is close to the protection device, is provided with a second vent groove, the first vent groove and the second vent groove are connected through a conduit and a valve, compressed gas is arranged inside the energy storage box, and the 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 spontaneously ignites due to accidents, the temperature in the connection chamber rises suddenly, at the moment, gas in the control chamber expands due to heating, the annular magnetic block also rotates and enables the movable frame to move under the action of the gas pressure, and when the movable frame is separated from the exhaust channel, the compressed gas in the energy storage box and the protection chamber is released out.
Furthermore, the first air groove and the second air groove are provided with two groups, two groups of air guide channels are arranged in the guide pipe, the first air groove in each group is connected with one group of second air grooves through one group of air guide channels, an air pump is arranged in the energy storage box, and an air outlet end of the air pump is connected with one group of second air grooves through a flow dividing pipe.
Through above-mentioned technical scheme, after aluminum alloy photovoltaic cable joint and first plug and second plug connection, can carry the protection indoor along one of them a set of first air channel, air guide channel and second air channel with the compressed gas in the energy storage box through the air pump, then along with the atmospheric pressure increase in the protection room, the indoor gas of protection can enter into the energy storage box along another a set of first air channel, air guide channel and second air channel, gas is at the in-process that flows, the indoor temperature of junction can be taken away, with this purpose that realizes the cooling.
Furthermore, be provided with the refrigeration board on the inner wall of energy storage box, the refrigeration board is connected with solar panel through two sets of guide blocks.
In the working process in daytime, the refrigeration plate can work continuously, so that the temperature of gas in the energy storage box is reduced, the phenomenon that the temperature of the external environment is too high, the temperature in the protection room cannot be dissipated in time after the gas in the energy storage box is absorbed is avoided, the refrigeration effect of the refrigeration plate is in direct proportion to the temperature of the gas in the protection device, and the phenomenon that the refrigeration plate still works when the external temperature is low, so that a joint and an insulating wrapping are damaged is avoided.
Further, first plug includes first bayonet joint main part, first copper aluminium transition terminal and first nut, the one end of first copper aluminium transition terminal is through first metal plug-in components and first bayonet joint bulk phase connection, the other end of first copper aluminium transition terminal is connected with first nut through first rubber pad and first packing piece, the second plug includes second bayonet joint main part, second copper aluminium transition terminal and second nut, the one end of second copper aluminium transition terminal is connected with the second bayonet joint main part through second metal plug-in components, the other end of second copper aluminium transition terminal is connected with the second nut through second rubber pad and second packing piece.
Compared with the existing plug, the first plug and the second plug are obviously reduced in pressure contact point, and the possibility of circuit failure is greatly reduced.
Compared with the prior art, the invention has the following beneficial effects: compared with the existing copper-aluminum transition connection system, 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 aluminum alloy photovoltaic cable joint, the first plug and the second plug are prevented from being damaged by substances such as external rainwater and dust, meanwhile, in the process of connecting the aluminum alloy photovoltaic cable joint with the first plug and the second plug, the compressed gas in the protection chamber can be released through the induction mechanism and the movable frame, through the aim of cleaning the connection chamber through the group of gas, impurities such as external dust and the like can be prevented from entering the connection chamber from gaps of the protection device during long-time working, the insulativity of the joint and the insulating sheath is reduced, a local discharge phenomenon is caused, the temperature in the protection device can be adjusted through the energy storage device, the phenomena that the insulating sheath of a circuit is aged and the like due to overhigh temperature in the protection device are prevented, finally, when the joint in the protection device generates phenomena such as spontaneous combustion and the like due to accidents and the like, the phenomena that the compressed gas in the energy storage box and the protection chamber are controlled by expansion of the gas pump, the compressed gas pump, the plug can be conveniently disassembled from a fault-tolerant plug, and the plug, the plug can be disassembled from a fault-tolerant circuit, and the first plug, the second plug, and the plug can be conveniently disassembled.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the copper-aluminum transition connection system of the present invention;
fig. 2 is a schematic view of the first plug of the present invention installed inside a protection device;
fig. 3 is a schematic view of the second plug of the present invention mounted inside a protective device;
FIG. 4 is a schematic view of a first plug configuration of the present invention;
FIG. 5 is a schematic view of a second plug construction of the present invention;
FIG. 6 is a schematic view of the sensing mechanism of the present invention;
FIG. 7 isbase:Sub>A schematic view of the structure A-A of FIG. 6 according to the present invention;
FIG. 8 is a schematic view of the retaining cap of the present invention;
FIG. 9 is a schematic view of a first plug of the present invention connected to an aluminum alloy photovoltaic cable joint;
fig. 10 is a schematic structural diagram of the energy storage device of the invention.
In the figure: 1-wiring device, 2-protection device, 21-fixed box, 22-control frame, 23-control chamber, 231-control plate, 24-connection chamber, 25-protection chamber, 26-movable frame, 27-induction mechanism, 271-fixed frame, 2711-annular magnet, 2712-annular groove, 2713-guide block, 272-fixed cover, 28-sealing cover, 3-energy storage device, 31-guide pipe, 32-energy storage box, 33-shunt pipe, 34-air pump, 4-first plug, 41-first plug body, 42-first metal plug, 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 plug, 53-second copper-aluminum transition terminal, 54-second rubber pad, 55-second tightening piece, and 56-second nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-3 and 9, a copper-aluminum transition connection system for an aluminum alloy photovoltaic cable is provided, which is arranged on the top of a solar panel, the solar panel is connected with an aluminum alloy photovoltaic cable joint through the copper-aluminum transition connection system, the copper-aluminum transition 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 on the front side and the rear side of the top of the solar panel, the first plug 4 and the second plug 5 are both arranged on the outer side of the solar panel, one end of the first plug 4 and one end of the second plug 5 are connected with the positive and negative electrodes of the solar panel through wires and the wiring device 1, the other end of first plug 4 and second plug 5 is connected with aluminum alloy photovoltaic cable joint through buckle and draw-in groove, protection device 2 is provided with two sets ofly altogether, two sets of protection device 2 set up respectively in the outside of first plug 4 and second plug 5, every protection device 2 of group all is connected with energy storage device 3 through pipe 31 and valve, through the inside temperature of energy storage device 3 control protection device 2 and inside oxygen content, protection device 2 includes fixed box 21, induction mechanism 27 and sealed lid 28, induction mechanism 27 sets up the inside at fixed box 21, sealed lid 28 sets up in the aluminum alloy photovoltaic cable joint outside, carry out temperature detection through induction mechanism 27, make protection device 2 isolated with the external environment through sealed lid 28.
The solar panel is an installation foundation of the invention, the wiring device 1 is used for transferring the current generated by the solar panel, the solar photovoltaic cable joint is provided with the protection device 2 and the energy storage device 3, the aluminum alloy photovoltaic cable joint is connected with the first plug 4 and the second plug 5 through the protection device 2 and then can be isolated from the external environment, and the aluminum alloy photovoltaic cable joint, the first plug 4 and the second plug 5 are prevented from being damaged by substances such as external rainwater and dust, the energy storage device 3 is connected with the solar panel, part of the 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 such as aging and coking of an insulating sheath of a circuit caused by overhigh temperature in the protection device 2 are prevented, and finally, when the joint in the protection device 2 has the phenomena such as spontaneous combustion due to accidents, the oxygen content in the protection device 2 can be automatically adjusted through the energy storage device 3, so that the fire hazard generated by spontaneous combustion of the joint is prevented from spreading.
As shown in fig. 2, 3 and 9, a control chamber 23, a connection chamber 24 and a protection chamber 25 are arranged inside the fixed box 21, a control frame 22 is arranged outside the fixed box 21, an induction gas and a control board 231 are arranged inside the control chamber 23, the control board 231 is connected with the control frame 22, the first plug 4 and the second plug 5 are both arranged inside the connection chamber 24, a connection hole is arranged at one end of the connection chamber 24, an induction mechanism 27 and a movable frame 26 are arranged at the other end of the connection chamber 24, the induction mechanism 27 is fixedly arranged on the inner wall of the connection chamber 24 and connected with the control chamber 23, the movable frame 26 is movably arranged inside the control chamber 23 through a flexible spring rod, the induction mechanism 27 controls the movement of the movable frame 26, the connection chamber 24 is connected with the protection chamber 25 through an exhaust passage, a sealing block is arranged outside the movable frame 26, the movable frame 26 controls the communication between the connection chamber 24 and the protection chamber 25, and compressed gas is arranged inside the protection chamber 25.
According to the invention, the sealing cover 28 is connected with the connecting hole through threads, the sealing cover 28 is provided with a 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 close to the first plug 4 and the second plug 5 is provided with an elastic block, the movable frame 26 can drive the first plug 4 and the second plug 5 to move together when moving through the elastic blocks and the convex rings, if the first plug 4 needs to be taken out of the connecting chamber 24 before connection, the control frame 22 is only pressed, the control frame 22 drives the induction mechanism 27 to work, the movable frame 26 can push against the first plug 4 and the second plug 5 to move towards the connecting hole 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 the aluminum alloy photovoltaic cable connector with the first plug 4 and the second plug 5 through the buckle and the clamping groove, after connection is completed, the control frame 22 is loosened, the first plug 4 and the second plug 5 can reset under the action of the flexible spring rod, the aluminum alloy photovoltaic cable connector enters the connecting chamber 24, and finally the sealing cover 28 is installed on the connecting hole to avoid interference of the external environment.
As shown in fig. 2-3 and fig. 6-9, the sensing mechanism 27 includes a fixing frame 271, an annular magnetic block 2711, an annular groove 2712, a guide block 2713 and a fixed cover 272, the annular magnetic block 2711 is movably installed inside the fixing frame 271 and near one end of the movable frame 26, the fixed cover 272 is fixedly installed outside the fixing frame 271 and near one end of the movable frame 26, a plurality of sets of fan-shaped through holes are arranged on the fixed cover 272, the annular magnetic block 2711 is composed of a plurality of sets of fan-shaped magnetic blocks, the annular groove 2712 is arranged outside the annular magnetic block 2711, the guide block 2713 and a spring guide rod are arranged inside the annular groove 2712, the guide block 2713 is arranged on the spring guide rod and is fixedly connected with the annular magnetic block 2711, the control chamber 23 is connected with the annular groove 2712 through an air guide slot, one end of the movable frame 26 near the sensing mechanism 27 has magnetism, and the annular magnetic block 2711 and the movable frame 26 repel each other.
One end of the control chamber 23 close to the connection chamber 24 has thermal conductivity, before connection, a worker presses the control frame 22 to enable induction gas inside the control chamber 23 to enter the annular groove 2712, at the moment, the guide block 2713 can drive the annular magnetic block 2711 to rotate under the action of gas pressure, when the sector-shaped magnetic block on the annular magnetic block 2711 is overlapped with the sector-shaped through hole on the fixed cover 272, the annular magnetic block 2711 and the movable frame 26 repel each other, so that the movable frame 26 can push against the first plug 4 and the second plug 5 to move towards the direction of the through hole, and 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 block is fixedly mounted on the spring guide rod, the other set of conductive block is fixedly mounted on the conductive block 2713, and the two sets of conductive blocks are connected with the energy storage device 3 through a wire.
Because the working environment of the solar panel is usually outdoor, the temperature of the gas inside the protection device 2 is 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 and the like do not occur, the induction gas inside the control chamber 23 begins to expand and extrude 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 can change.
As shown in fig. 2, 3 and 10, a first vent groove is arranged at one end of the protection chamber 25 far from the connection chamber 24, the energy storage device 3 comprises an energy storage box 32, a second vent groove is arranged at one end of the energy storage box 32 near the protection device 2, the first vent groove and the second vent groove are connected through a conduit 31 and a valve, and compressed gas is arranged inside the energy storage box 32 and is carbon dioxide.
Through the technical scheme, before the aluminum alloy photovoltaic cable joint is connected with the first plug 4 and the second plug 5, the valve is closed to prevent compressed gas in the energy storage box 32 from leaking out, after the aluminum alloy photovoltaic cable joint is connected with the first plug 4 and the second plug 5, the valve is opened, if the joint inside the protection device 2 is subjected to spontaneous combustion due to accidents, the temperature inside the connecting chamber 24 is suddenly increased, at the moment, gas inside the control chamber 23 is heated and expanded, the annular magnetic block 2711 can also rotate and enable the movable frame 26 to move under the action of gas pressure, and when the movable frame 26 is separated from the exhaust channel, the compressed gas inside the energy storage box 32 and the protection chamber 25 can be released.
As shown in fig. 2, 3 and 10, two sets of first air grooves and two sets of second air grooves are arranged, two sets of air guide channels are arranged in the guide tube 31, each set of first air grooves is connected with one set of second air grooves through one set of air guide channels, an air pump 34 is arranged in the energy storage box 32, and an air outlet end of the air pump 34 is connected with one set of second air grooves through a shunt tube 33.
Through the technical scheme, after the aluminum alloy photovoltaic cable connector is connected with the first plug 4 and the second plug 5, compressed gas in the energy storage box 32 can be conveyed into the protection chamber 25 along one set of the first ventilation groove, the gas guide channel and the second ventilation groove through the gas pump 34, then along with the increase of the gas pressure in the protection chamber 25, the gas in the protection chamber 25 can enter the energy storage box 32 along the other set of the first ventilation groove, the gas guide channel and the second ventilation groove, and in the flowing process of the gas, the temperature in the connection chamber 24 can be taken away, so that the purpose of cooling is achieved.
As shown in fig. 2, fig. 3 and fig. 10, a refrigeration plate is disposed on the inner wall of the energy storage box 32, and the refrigeration plate is connected to the solar panel through two sets of guide blocks 2713.
In the working process of the invention in daytime, the refrigeration plate can work continuously, so that the temperature of the gas in the energy storage box 32 is reduced, the phenomenon that the temperature of the external environment is too high, the temperature in the protection chamber 25 cannot be released in time after the gas in the energy storage box 32 absorbs the gas is avoided, the refrigeration effect of the refrigeration plate is in direct proportion to the temperature of the gas in the protection device 2, and the phenomenon that the refrigeration plate still works when the external temperature is lower, so that the joint and the insulating wrapping are damaged is avoided.
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 to the first plug body 41 through a first metal insert 42, the other end of the first copper-aluminum transition terminal 43 is connected to the first nut 46 through a first rubber pad 44 and a first tightening piece 45, the first plug body 41 is connected to the first nut 46 through a screw, 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 to the second plug body 51 through a second metal insert 52, the other end of the second copper-aluminum transition terminal 53 is connected to the second nut 56 through a second rubber pad 54 and a second tightening piece 55, and the second plug body 51 is connected to the second nut 56 through a screw.
Compared with the existing plug, the first plug 4 and the second plug 5 are obviously reduced in pressure contact point, the possibility of circuit failure is greatly reduced, and in addition, the first plug 4 and the second plug 5 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 facilitated.
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, only the control frame 22 needs to be pressed, the induction gas in the control chamber 23 can be extruded into the annular groove 2712 through the control board 231, the guide block 2713 can drive the annular magnetic block 2711 to rotate under the action of the gas pressure, so that the fan-shaped magnetic blocks on the annular magnetic block 2711 are overlapped with the fan-shaped through holes on the fixed cover 272, the movable frame 26 can push the first plug 4 and the second plug 5 to move towards the direction of the connecting holes through the repulsive force between the annular magnetic block 2711 and the movable frame 26, at the moment, the worker can connect the aluminum alloy photovoltaic cable connector with the first plug 4 and the second plug 5 together to realize the purpose of copper-aluminum transition connection, after the connection is completed, the worker loosens the control frame 22, and the first plug 4 and the second plug 5 can reset under the action of the flexible spring rod, and make the aluminum alloy photovoltaic cable joint enter the connection chamber 24, install the gland bonnet 28 on the attachment hole finally, can avoid the interference of the external environment to the circuit, in the course of transmitting electricity, if the temperature in the connection chamber 24 is too high by the influence of the external environment, the induced gas in the control chamber 23 will begin to expand and squeeze on the guide block 2713, make certain range of excursion take place on the guide block 2713, the refrigeration board begins to refrigerate at this moment, so that the gas flowing in the energy storage box 32 and the protection chamber 25 can absorb the temperature of the connection chamber 24, avoid the joint and insulating wrapping from damaging, cause the short circuit or fire phenomenon, if the joint in the protection device 2 happens the phenomenon of spontaneous combustion because of accident, the gas in the control chamber 23 is heated and expanded, the guide block 2713 will bring the annular magnetic block 2711 to rotate and make the movable shelf 26 move under the effect of gas pressure, at this moment the movable shelf 26 separates from exhaust passage, the compressed gas in the energy storage box 32 and the protection chamber 25 can be released, and the group of compressed gas can play a role in extinguishing a fire, so that the spread of the fire is prevented.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an aluminum alloy is copper aluminium transition connected system for photovoltaic cable, this copper aluminium transition connected system sets up on solar panel's top, and solar panel is connected its characterized in that through copper aluminium transition connected system with aluminum alloy photovoltaic cable joint: the copper-aluminum transition 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 both 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 positive electrode and the negative electrode 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 joint through buckles and clamping grooves, the protection device (2) is provided with two groups, the protection device (2) is respectively arranged on the outer sides of the first plug (4) and the second plug (5), the protection device (2) is connected with the energy storage device (3) through a guide pipe (31) and a valve, the energy storage device (3) controls the internal temperature and the internal oxygen content of the protection device (2), the protection device (2) comprises a fixed box (21) and a sealing cover (27), and a photovoltaic cable induction mechanism (27), the temperature is detected by the sensing means (27) and the protection device (2) is isolated from the outside environment by the sealing cover (28).
2. The copper-aluminum transition connection system for the aluminum alloy photovoltaic cable as recited in claim 1, wherein: the inside of fixed box (21) is provided with control room (23), connection room (24) and guard chamber (25), the outside of fixed box (21) is provided with control frame (22), the inside of control room (23) is provided with response gas and control panel (231), control panel (231) are connected with control frame (22), first plug (4) and second plug (5) all set up in connection room (24), the one end of connection room (24) is provided with the connecting hole, the other end of connection room (24) is provided with response mechanism (27) and adjustable shelf (26), response mechanism (27) fixed mounting is on the inner wall of connection room (24) and is connected with control room (23), adjustable shelf (26) are through flexible spring pole movable mounting in control room (23), the removal of response mechanism (27) control adjustable shelf (26), the intercommunication of adjustable shelf (26) control connection room (24) and guard chamber (25), the inside of guard chamber (25) is provided with compressed gas.
3. The copper-aluminum transition connection system for the aluminum alloy photovoltaic cable as recited in claim 2, wherein: the induction mechanism (27) comprises a fixed frame (271), an annular magnetic block (2711), an annular groove (2712), a guide block (2713) and a fixed cover (272), wherein the annular magnetic block (2711) is movably arranged at one end, close to the movable frame (26), of the fixed frame (271), the fixed cover (272) is fixedly arranged at one end, close to the movable frame (26), of the outer portion of the fixed frame (271), a plurality of groups of fan-shaped through holes are formed in the fixed cover (272), the annular magnetic block (2711) is composed of a plurality of groups of fan-shaped magnetic blocks, the annular groove (2712) is formed in the outer side of the annular magnetic block (2711), the guide block (2713) and a spring guide rod are arranged in the annular groove (2712), the guide block (2713) is arranged on the spring guide rod and is fixedly connected with the annular magnetic block (2711), the control chamber (23) is connected with the annular groove (2712) through the air guide groove, and one end, close to the induction mechanism (27), of the movable frame (26) has magnetism.
4. The copper-aluminum transition connection system for the aluminum alloy photovoltaic cable as recited in claim 3, wherein: two groups of conductive blocks are further arranged inside the annular groove (2712), 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 (2713), and the two groups of conductive blocks are connected with the energy storage device (3) through a lead.
5. The copper-aluminum transition connection system for the aluminum alloy photovoltaic cable as recited in claim 4, wherein: the one end that the connection room (24) was kept away from in protection room (25) is provided with first air channel, energy storage device (3) are including energy storage box (32), the one end that energy storage box (32) are close to protection device (2) is provided with the second air channel, first air channel is connected with the valve through pipe (31) with the second air channel, the inside of energy storage box (32) is provided with compressed gas, compressed gas is carbon dioxide.
6. The copper-aluminum transition connection system for the aluminum alloy photovoltaic cable as recited in claim 5, wherein: first air channel and second air channel all are provided with two sets ofly, the inside of pipe (31) is provided with two sets of air guide channel, every group first air channel all is connected with a set of second air channel through a set of air guide channel, the inside of energy storage box (32) is provided with air pump (34), the end of giving vent to anger of air pump (34) is connected with a set of second air channel wherein through shunt tubes (33).
7. The copper-aluminum transition connection system for the aluminum alloy photovoltaic cable as recited in claim 6, wherein: be provided with the refrigeration board on the inner wall of energy storage box (32), the refrigeration board is connected with solar panel through two sets of guide blocks (2713).
8. The copper-aluminum transition connection system for the aluminum alloy photovoltaic cable as recited in claim 7, wherein: the first plug (4) comprises a first plug connector main body (41), a first copper-aluminum transition terminal (43) and a first screw cap (46), one end of the first copper-aluminum transition terminal (43) is connected with the first plug connector main body (41) through a first metal plug-in (42), the other end of the first copper-aluminum transition terminal (43) is connected with the first screw cap (46) through a first rubber pad (44) and a first tightening piece (45), the second plug (5) comprises a second plug connector main body (51), a second copper-aluminum transition terminal (53) and a second screw cap (56), one end of the second copper-aluminum transition terminal (53) is connected with the second plug connector main body (51) through a second metal plug-in (52), and the other end of the second copper-aluminum transition terminal (53) is connected with the second screw cap (56) through a second rubber pad (54) and a second tightening piece (55).
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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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| 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 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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| CN115882270B (en) | 2023-10-10 |
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