Flexible photovoltaic support and photovoltaic power station

Abstract

The embodiment of the utility model discloses a flexible photovoltaic support and a photovoltaic power station, and relates to the technical field of photovoltaic equipment, the flexible photovoltaic support comprises a support frame body and a transmission cable, the support frame body comprises at least two frame body units, and the at least two frame body units are arranged at intervals; the transmission cable comprises a first cable and a second cable, the first cable and the second cable are connected to the at least two frame body units side by side at intervals, and the first cable and the second cable are used for bearing and supporting a photovoltaic module and are electrically connected with the photovoltaic module respectively. According to the technical scheme provided by the embodiment of the invention, the construction cost of the photovoltaic power station is reduced, and the practicability and reliability of the flexible photovoltaic support are effectively improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of photovoltaic equipment, and in particular to a flexible photovoltaic bracket and photovoltaic equipment. Background Art

[0002] In related technologies, photovoltaic power stations can usually use flexible photovoltaic brackets to support and fix photovoltaic modules in installation environments such as mountainous areas and lakes. The large span and high clearance characteristics of flexible photovoltaic brackets can adapt to more installation environments and reduce the space occupied by photovoltaic brackets in the installation environment.

[0003] However, most flexible photovoltaic brackets use support frames to anchor load-bearing cables, use load-bearing cables to install and fix photovoltaic modules, and then use transmission wires to connect photovoltaic modules and junction boxes, so that the electric energy converted by multiple photovoltaic modules is converged into the junction box and then output to the inverter. As a result, the overall structure of the flexible photovoltaic bracket is relatively complicated, the wire consumption in the photovoltaic power station is large, the overall construction cost is high, and the practicality and reliability of the photovoltaic power station are reduced. Utility Model Content

[0004] Multiple embodiments in this application propose a flexible photovoltaic bracket and photovoltaic equipment, aiming to enable the flexible photovoltaic bracket to use transmission cables to install and fix photovoltaic components while realizing the convergence and power transmission of photovoltaic components, reducing the construction cost of photovoltaic power stations, and effectively improving the practicality and reliability of the flexible photovoltaic bracket.

[0005] A flexible photovoltaic bracket proposed in one embodiment of the present application includes a supporting frame and a transmission cable, wherein the supporting frame includes at least two frame units, and at least two of the frame units are arranged at intervals; the transmission cable includes a first cable and a second cable, and the first cable and the second cable are connected to at least two of the frame units side by side at intervals, and the first cable and the second cable are used to carry and support photovoltaic components and are electrically connected to the photovoltaic components respectively.

[0006] In one embodiment, the flexible photovoltaic support includes at least two sets of transmission cables, each used to support and secure a photovoltaic module. The at least two sets of transmission cables are each electrically connected to an inverter; alternatively, the at least two sets of transmission cables are connected to the inverter in parallel.

[0007] In one embodiment, both the first cable and the second cable are provided with lead wires, and ends of the lead wires are provided with connection terminals, and the connection terminals are used to cooperate with and plug into photovoltaic modules.

[0008] In one embodiment, the transmission cable includes a core and a protective sheath, wherein the protective sheath wraps the core.

[0009] In one embodiment, the core is a steel stranded wire or a steel core aluminum stranded wire. Alternatively, the core includes a conductive core and a supporting core, the supporting core is a steel stranded wire, and the protective sheath wraps the conductive core and the supporting core.

[0010] In one embodiment, the protective wire sheath includes an insulation layer, an armored protective layer, and a protective outer sheath, wherein the insulation layer wraps the wire core, the armored protective layer wraps the insulation layer, and the protective outer sheath wraps the armored protective layer.

[0011] In one embodiment, the transmission cable further includes a conductive material, and the conductive material is filled between the core and the protective sheath.

[0012] In one embodiment, insulator strings are respectively provided at both ends of the transmission cable, and the insulator strings are connected to the support frame.

[0013] In one embodiment, the insulator string is provided with a first connecting fitting and a second connecting fitting, wherein the first connecting fitting connects one end of the insulator string and the transmission cable, and the second connecting fitting connects the other end of the insulator string and the frame unit.

[0014] In one embodiment, the insulator string is a single-link insulator string or a multi-link insulator string. And / or, the insulator string includes at least two insulators, and the at least two insulators are sequentially connected end to end.

[0015] An embodiment of the present application also proposes a photovoltaic power station, which includes photovoltaic components, an inverter and a flexible photovoltaic bracket. The flexible photovoltaic bracket is the flexible photovoltaic bracket described above. The photovoltaic components are installed on the flexible photovoltaic bracket and electrically connected to the flexible photovoltaic bracket. The flexible photovoltaic bracket is electrically connected to the inverter.

[0016] In the multiple embodiments provided in the present application, the flexible photovoltaic bracket uses at least two frame units of the supporting frame to anchor the installation of the transmission cable, and the transmission cable integrates the function of the transmission wire. When the photovoltaic component is installed and fixed on the transmission cable, the first cable and the second cable can be used to electrically connect the positive output terminal and the negative output terminal of the photovoltaic component respectively, so that the transmission cable can not only play the role of bearing and supporting the photovoltaic component, but also play the role of converging and outputting the electric energy generated by the photovoltaic component. There is no need to set up additional wires and junction boxes in the photovoltaic power station to converge and output multiple photovoltaic components, which is conducive to better reducing the construction cost of the photovoltaic power station, reducing the assembly process of the photovoltaic power station, and effectively improving the practicality and reliability of the flexible photovoltaic bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 A schematic structural diagram of an embodiment of a flexible photovoltaic bracket provided in this application;

[0019] Figure 2 for Figure 1 A schematic diagram of a partial structure of an embodiment of a flexible photovoltaic support;

[0020] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0021] Figure 4 for Figure 1 A schematic structural diagram of an embodiment of a transmission cable for a flexible photovoltaic support;

[0022] Figure 5 for Figure 1 A schematic structural diagram of another embodiment of a transmission cable for a flexible photovoltaic support.

[0023] Description of Figure Numbers:

[0024] 100. Flexible photovoltaic support; 10. Frame unit; 30. Transmission cable; 30a. First cable; 30b. Second cable; 31. Lead-out wire; 311. Terminal block; 33. Wire core; 331. Conductive wire core; 333. Support wire core; 35. Protective wire sheath; 351. Insulation layer; 353. Armored protective layer; 355. Protective outer sheath; 50. Insulator string; 51. First connecting hardware; 53. Second connecting hardware; 200. Photovoltaic module. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in multiple embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0026] It should be noted that if multiple embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second", etc. in multiple embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0028] In related technologies, photovoltaic power stations can usually use flexible photovoltaic brackets to support and fix photovoltaic modules in installation environments such as mountainous areas and lakes. The large span and high clearance characteristics of flexible photovoltaic brackets can adapt to more installation environments and reduce the space occupied by photovoltaic brackets in the installation environment. However, most flexible photovoltaic brackets use support frames to anchor load-bearing cables, use load-bearing cables to install and fix photovoltaic modules, and then use transmission wires to connect photovoltaic modules and junction boxes, so that the electric energy converted by multiple photovoltaic modules is converged to the junction box and then output to the inverter. As a result, the overall structure of the flexible photovoltaic bracket is relatively complicated, the wire consumption in the photovoltaic power station is large, the overall construction cost is high, and the practicality and reliability of the photovoltaic power station are reduced. In response to the above problems, the present application proposes a flexible photovoltaic bracket 100.

[0029] See also Figures 1 to 4 In one embodiment of the present application, the flexible photovoltaic bracket 100 includes a supporting frame and a transmission cable 30, the supporting frame includes at least two frame units 10, and the at least two frame units 10 are arranged at intervals; the transmission cable 30 includes a first cable 30a and a second cable 30b, the first cable 30a and the second cable 30b are connected to the at least two frame units 10 at intervals and side by side, the first cable 30a and the second cable 30b are used to carry and support the photovoltaic component 200, and are electrically connected to the photovoltaic component 200 respectively.

[0030] In the present application, the flexible photovoltaic bracket 100 can make the transmission cable 30 use a conductor wire with good conductivity as the core, and make the transmission cable 30 made of a material with good tensile strength, so that the transmission cable 30 can have good load-bearing performance and conductivity under the anchoring action of at least two frame units 10, thereby ensuring the stable support and conductivity of the transmission cable 30 on the photovoltaic component 200.

[0031] Furthermore, when a photovoltaic power station installs multiple photovoltaic modules 200 in a certain arrangement and fixes them on the transmission cable 30 of the flexible photovoltaic support 100, the multiple photovoltaic modules 200 can be electrically connected to the transmission cable 30, which is conducive to using the transmission cable 30 to carry and support the photovoltaic modules 200 to realize the power convergence output of the multiple photovoltaic modules 200, so that the transmission cable 30 can integrate the bus conductor function of the photovoltaic modules 200, effectively reducing the wire consumption of the photovoltaic power station, and thus better reducing the construction cost of the photovoltaic power station. At the same time, by using the transmission cable 30 to connect multiple photovoltaic modules 200 for bus output, the transmission cable 30 can be directly connected to the inverter for power output, effectively reducing the installation of DC combiner boxes and low-voltage DC cables in the photovoltaic power station, which is conducive to better reducing the cost of the photovoltaic power station and further improving the practicality and reliability of the flexible photovoltaic support 100. In addition, the use of the transmission cable 30 to support the photovoltaic module 200 while realizing the power transmission of the photovoltaic module 200 is also conducive to better reducing the installation process of the photovoltaic power station. There is no need for construction workers to lay the power transmission and conductivity of the photovoltaic module 200 in the installation environment, and the flexible photovoltaic bracket 100 and the photovoltaic module 200 can be assembled more conveniently, thereby better reducing the construction cost of the photovoltaic power station.

[0032] Among them, by arranging the first cable 30a and the second cable 30b side by side on at least two frame units 10, the first cable 30a and the second cable 30b can be used more stably to support the photovoltaic component 200, further improving the connection stability and reliability between the flexible photovoltaic bracket 100 and the photovoltaic component 200. At this time, the transmission cable 30 can use the first cable 30a as the positive cable and the second cable 30b as the negative cable, and then connect the first cable 30a to the positive output end of the photovoltaic component 200, connect the second cable 30b to the negative output end of the photovoltaic component 200, and connect the first cable 30a and the second cable 30b to the positive input end and the negative input end of the inverter respectively, ensuring the stable wiring of the various components of the photovoltaic power station, so that the electrical energy generated by the photovoltaic component 200 converting light energy can be stably converged and input into the inverter through the transmission cable 30, ensuring the stable operation of the photovoltaic power station, and further improving the practicality and reliability of the flexible photovoltaic bracket 100.

[0033] In one embodiment of the present application, the flexible photovoltaic bracket 100 uses at least two frame units 10 of the supporting frame to anchor the installation of the transmission cable 30, and the transmission cable 30 integrates the function of the transmission wire. When the photovoltaic component 200 is installed and fixed on the transmission cable 30, the first cable 30a and the second cable 30b can be electrically connected to the positive output terminal and the negative output terminal of the photovoltaic component 200 respectively, so that the transmission cable 30 can not only play the role of supporting the photovoltaic component 200, but also play the role of converging and outputting the electric energy generated by the photovoltaic component 200. There is no need to set up additional wires and junction boxes in the photovoltaic power station to converge and output multiple photovoltaic components 200, which is conducive to better reducing the construction cost of the photovoltaic power station, reducing the assembly process of the photovoltaic power station, and effectively improving the practicality and reliability of the flexible photovoltaic bracket 100.

[0034] In one embodiment of the present application, the flexible photovoltaic support 100 includes at least two sets of transmission cables 30, each used to support and secure the photovoltaic assembly 200. The at least two sets of transmission cables 30 are electrically connected to the inverter, respectively; alternatively, the at least two sets of transmission cables 30 are connected to the inverter in parallel.

[0035] It is understood that when a photovoltaic power station is equipped with multiple photovoltaic modules 200 to increase the overall power generation, the flexible photovoltaic support 100 can be configured with at least two sets of transmission cables 30 to install multiple photovoltaic modules 200, so that the photovoltaic modules 200 can be arranged in a certain array and installed on the flexible photovoltaic support 100, ensuring the stable and reliable operation of the photovoltaic power station. In this case, the at least two sets of transmission cables 30 can be arranged side by side at a certain distance, and the at least two sets of transmission cables 30 can be installed side by side at intervals on at least two frame units 10 of the same support frame; alternatively, the flexible photovoltaic support 100 can be configured with at least two sets of support frames to anchor and install at least two sets of transmission cables 30, ensuring the flexible photovoltaic support 100's stable support for the photovoltaic modules 200, further improving the practicality and reliability of the flexible photovoltaic support 100.

[0036] The inverter of the photovoltaic power station can be provided with multiple input ends. When the flexible photovoltaic bracket 100 is provided with at least two groups of transmission cables 30 to carry and install multiple photovoltaic modules 200, each group of transmission cables 30 can be electrically connected to the photovoltaic modules 200 it carries, and then a group of transmission cables 30 can be electrically connected to an input end of the inverter, so that at least two groups of transmission cables 30 can independently transmit electrical energy to the inverter to ensure the stable operation of the photovoltaic power station; or, at least two groups of transmission cables 30 can be connected in parallel and then connected to the input end of the inverter, so that the photovoltaic power station can synchronously converge multiple rows of photovoltaic modules 200, so that the inverter can connect a larger number of transmission cables 30, without the need to configure a larger number of inverters in the photovoltaic power station, further improving the practicality and reliability of the flexible photovoltaic bracket 100.

[0037] See Figure 2 and Figure 4 In one embodiment of the present application, the first cable 30a and the second cable 30b are both provided with lead wires 31 , and the ends of the lead wires 31 are provided with connection terminals 311 , which are used to cooperate with and plug into the photovoltaic assembly 200 .

[0038] In this embodiment, by respectively arranging lead-out wires 31 of a certain length on the first cable 30a and the second cable 30b, the lead-out wire 31 arranged on the first cable 30a can be electrically connected to the core of the first cable 30a, and the lead-out wire 31 arranged on the second cable 30b can be electrically connected to the core of the second cable 30b. Furthermore, when the photovoltaic component 200 is assembled and fixed on the first cable 30a and the second cable 30b, the lead-out conductive connection of the first cable 30a and the second cable 30b can be utilized to connect the output port of the photovoltaic component 200. This is beneficial to avoid the possibility that the first cable 30a and the second cable 30b are at a certain distance from the output port of the photovoltaic component 200 and cannot be well connected, thereby ensuring the stable electrical connection between the transmission cable 30 and the photovoltaic component 200, and further improving the structural stability and reliability of the flexible photovoltaic bracket 100.

[0039] Among them, by providing a terminal 311 at the end of the lead wire 31, the terminal 311 can be a terminal structure that is plugged into the output port of the photovoltaic module 200, so that the lead wire 31 can be plugged into the output port of the photovoltaic module 200 using the terminal 311, a stable electrical connection between the photovoltaic module 200 and the first cable 30a and the second cable 30b can be achieved, which is conducive to better improving the connection stability and assembly convenience between the flexible photovoltaic support 100 and the photovoltaic module 200, and further improving the assembly efficiency of the photovoltaic power station. When multiple photovoltaic modules 200 need to be assembled and carried on the transmission cable 30, multiple lead wires 31 can be provided on the first cable 30a and the second cable 30b, and the multiple lead wires 31 are arranged on the first cable 30a and the second cable 30b at a distance equal to the distance between the multiple photovoltaic module 200 strings, so that each photovoltaic module 200 can be electrically connected to the transmission cable 30 through the lead wire 31, achieving stable convergence output of the transmission cable 30 to multiple photovoltaic modules 200, further improving the practicality and reliability of the flexible photovoltaic support 100.

[0040] See Figure 4 In one embodiment of the present application, the transmission cable 30 includes a core 33 and a protective sheath 35 , wherein the protective sheath 35 wraps the core 33 , and the core 33 is a steel stranded wire or a steel-core aluminum stranded wire.

[0041] In this embodiment, the transmission cable 30 can utilize a wire with good electrical conductivity as the core 33 to ensure stable electrical conductivity of the transmission cable 30 to the photovoltaic module 200. By wrapping the transmission cable 30 with a protective sheath 35 around the outer periphery of the core 33, the protective sheath 35 can be used to insulate and protect the core 33, thereby preventing the current transmitted by the transmission cable 30 from acting on the photovoltaic module 200 and the support frame, thereby ensuring stable power transmission of the transmission cable 30. The protective sheath 35 can be made of a material with good wear resistance, waterproof properties, and high temperature resistance, so that the protective sheath 35 can better wrap and insulate the core 33, ensuring stable electrical conductivity of the transmission cable 30. At the same time, when the photovoltaic module 200 is shaken by wind loads and rubs against the transmission cable 30, the protective sheath 35 can be effectively prevented from wearing out and exposing the core 33, further improving the structural stability and reliability of the flexible photovoltaic support 100.

[0042] Further, see Figure 4In some embodiments, the core 33 can be made of conductive wire with good tensile strength such as steel stranded wire or steel-core aluminum stranded wire, so that when the transmission cable 30 carries the photovoltaic component 200, the core 33 can more stably withstand the load force of the photovoltaic component 200, effectively preventing the core 33 from breaking, ensuring the stable support and conductive effect of the transmission cable 30 on the photovoltaic component 200, and further improving the practicality and reliability of the flexible photovoltaic bracket 100.

[0043] In addition, see Figure 5 In other embodiments, the core 33 may include a conductive core 331 and a supporting core 333. The conductive core 331 may be a wire with good conductivity, and the conductive core 331 may be used to stably transmit electrical energy, while the supporting core 333 may be a wire with high structural strength such as steel stranded wire. The supporting core 333 and the conductive core 331 are stacked in parallel or entangled with each other, and the protective wire sheath 35 is wrapped around the supporting core 333 and the conductive core 331. The overall structural strength of the transmission cable 30 can be effectively improved under the action of the supporting core 333, so that the transmission cable 30 can carry the photovoltaic module 200 more stably, and effectively prevent the conductive core 331 from being subjected to a large load and having a certain probability of breaking, thereby ensuring the stable support and conductive effect of the transmission cable 30 on the photovoltaic module 200, and further improving the practicality and reliability of the flexible photovoltaic bracket 100.

[0044] See Figure 4 In one embodiment of the present application, the protective wire sheath 35 includes an insulating layer 351, an armored protective layer 353 and a protective outer sheath 355. The insulating layer 351 wraps the wire core 33, the armored protective layer 353 wraps the insulating layer 351, and the protective outer sheath 355 wraps the armored protective layer 353.

[0045] In this embodiment, the protective wire sheath 35 may include an insulating layer 351, an armored protective layer 353, and a protective outer sheath 355. At this time, the insulating layer 351 made of a material with good insulation performance and high temperature resistance can be used to wrap the wire core 33 to achieve insulation of the transmission cable 30, and then the armored protective layer 353 is used to wrap the insulating layer 351, and then the armored protective layer 353 is used to wrap the protective outer sheath 355. The armored protective layer 353 can be made of a flexible metal material, and the protective outer sheath 355 can be made of a material with good waterproof performance and wear resistance, so that it can be Under the action of the protective outer skin 355, the transmission cable 30 can be guaranteed to stably support the photovoltaic module 200, and the photovoltaic module 200 can be prevented from being damaged or wearing the transmission cable 30. At the same time, under the support of the armored protective layer 353, the insulation layer 351 can be effectively prevented from being damaged, thereby ensuring the stable power transmission of the transmission cable 30. At the same time, the transmission cable 30 can have better physical properties, preventing the transmission cable 30 from being broken due to excessive external force, and ensuring the stable support of the transmission cable 30 for the photovoltaic module 200, thereby further improving the structural stability and reliability of the flexible photovoltaic bracket 100.

[0046] In one embodiment of the present application, the transmission cable 30 further includes a conductive material, which is filled between the core 33 and the protective sheath 35 .

[0047] It can be understood that the transmission cable 30 can determine the material and cross-sectional area of ​​the core 33 based on conditions such as the weight of the photovoltaic components 200 to be carried, the required laying length, the required convergence power and the required voltage drop requirements, so that the resistivity of the transmission cable 30 can meet the requirements of the transmission cable 30 for power transmission, thereby ensuring the stable and reliable operation of the photovoltaic power station.

[0048] Among them, when the photovoltaic power station needs a larger output power, the cross-sectional area of ​​the conductive wire of the core 33 of the transmission cable 30 can be increased, or the core 33 can be made of a core material with good conductivity such as steel-core aluminum stranded wire, or conductive materials such as graphite powder can be filled between the core 33 and the protective outer skin 355, thereby effectively reducing the resistivity of the core 33, so that the transmission cable 30 can better output the electric energy converted by the photovoltaic component 200, ensuring that the photovoltaic power station meets the required working power requirements, and further improving the practicality and reliability of the flexible photovoltaic bracket 100.

[0049] See Figure 3 and Figure 4 In one embodiment of the present application, an insulator string 50 is provided at each end of the transmission cable 30 , and the insulator string 50 is connected to the support frame.

[0050] In this embodiment, the flexible photovoltaic support 100 can connect insulator strings 50 at both ends of the transmission cable 30. By connecting the insulator strings 50 with the two frame units 10 at the edge of the support frame, the transmission cable 30 can be stably anchored and installed on the support frame. At the same time, the good insulation performance of the insulator strings 50 can effectively isolate the power transmitted by the transmission cable 30 from acting on the support frame, ensuring stable power transmission of the transmission cable 30, and further improving the overall structural stability and reliability of the flexible photovoltaic support 100. Specifically, the flexible photovoltaic support 100 can use insulator strings 50 to connect the support frame at both ends of the first cable 30a and the second cable 30b, ensuring a stable insulated connection between the transmission cable 30 and the support frame, effectively preventing the support frame from being charged, and ensuring the stable and reliable operation of the photovoltaic power station.

[0051] The use of an insulator string 50 to connect the end of the transmission cable 30 and the support frame can better maintain a certain tension when the transmission cable 30 is installed on the support frame, so that the transmission cable 30 can more stably and reliably carry and fix the photovoltaic component 200, prevent the transmission cable 30 from collapsing, and ensure the stable bearing force of the flexible photovoltaic bracket 100 on the photovoltaic component 200.

[0052] See Figure 4 In one embodiment of the present application, the insulator string 50 is provided with a first connecting fitting 51 and a second connecting fitting 53, the first connecting fitting 51 connects one end of the insulator string 50 and the transmission cable 30, and the second connecting fitting 53 connects the other end of the insulator string 50 and the frame unit 10.

[0053] In this embodiment, the insulator string 50 can be connected to the transmission cable 30 and the frame unit 10 respectively using a first connecting fitting 51 and a second connecting fitting 53. The first connecting fitting 51 may include a bowl head hanging plate, a PD parallel hanging plate and a tension clamp. The bowl head scraper can be used to connect the connecting ball head at one end of the insulator string 50, and the transmission cable 30 can be clamped and fixed using the tension clamp. The PD parallel hanging plate can then be used to connect the bowl head scraper and the tension clamp to ensure a stable connection between the insulator string 50 and the transmission cable 30, effectively preventing the insulator string 50 from separating from the transmission cable 30. The second connecting hardware 53 can include a Z-shaped hanging plate and a ball head hanging ring. The ball head hanging ring can be used to connect the other end of the insulating string, and then the Z-shaped hanging plate can be used to connect the ball head hanging ring and the frame unit 10 to ensure the stable connection between the insulator string 50 and the frame unit 10, and prevent the insulator string 50 from separating from the frame unit 10. In turn, the insulator string 50 can be made to connect the transmission cable 30 and the frame unit 10 more stably and reliably, and under the action of the insulator string 50, the transmission cable 30 and the frame unit 10 can be stably insulated, thereby ensuring the overall structural stability of the flexible photovoltaic bracket 100.

[0054] By using the first connecting hardware 51 and the second connecting hardware 53 to connect the insulator string 50 to the transmission cable 30 and the frame unit 10, the insulator string 50 can have a certain swing space under the action of the first connecting hardware 51 and the second connecting hardware 53, which is beneficial to avoid the insulator string 50 being subjected to excessive tension and having a certain probability of breaking. At the same time, the insulator string 50 can be better disassembled and assembled in the flexible photovoltaic bracket 100, which facilitates the disassembly, maintenance and replacement of the insulator string 50, further improving the practicality and reliability of the flexible photovoltaic bracket 100.

[0055] In one embodiment of the present application, the insulator string 50 is a single-unit insulator string 50 or a multi-unit insulator string 50. And / or, the insulator string 50 includes at least two insulators, and the at least two insulators are sequentially connected end to end.

[0056] It is understandable that when the number of photovoltaic modules 200 carried by the transmission cable 30 is small, the flexible photovoltaic support 100 can use a single insulator string 50 at the end of the transmission cable 30 to connect the support frame, so that the flexible photovoltaic support 100 adopts a simpler structural setting. When the load required to be carried by the transmission cable 30 is large, the flexible photovoltaic support 100 can use a double insulator string 50 at the end of the transmission cable 30 to connect the support frame. At this time, the tensile force that the double insulator string 50 can withstand can be increased under the action of two or more insulator strings 50 in parallel, ensuring the stable connection of the insulator string 50 to the transmission cable 30 and the support frame, further improving the structural stability and reliability of the flexible photovoltaic support 100.

[0057] In addition, the insulator string 50 may include at least two insulators, which may be an insulating structure arranged in a disc-like or flying saucer-like shape. By connecting at least two insulators end to end in sequence, the insulator string 50 can have a certain flexibility and achieve a certain tensile strength under the connection of multiple insulators. At the same time, multiple insulator elements can be used to achieve a better arc isolation effect, which is conducive to better avoiding the current on the transmission cable 30 from being transmitted to the frame unit 10, ensuring the stable bearing and power transmission of the transmission cable 30 to the photovoltaic component 200, and further improving the structural stability and reliability of the flexible photovoltaic bracket 100.

[0058] The present application also proposes a photovoltaic power station, which includes a photovoltaic module 200, an inverter and a flexible photovoltaic bracket 100. The specific structure of the flexible photovoltaic bracket 100 refers to the above embodiment. Since the photovoltaic power station adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0059] The above description is merely an exemplary embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structural transformation made using the contents of the present application specification and drawings under the technical concept of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A flexible photovoltaic bracket, characterized in that: include: A support frame, the support frame comprising at least two frame units, wherein the at least two frame units are arranged in an alternating manner; The transmission cable includes a first cable and a second cable, the first cable and the second cable are connected to at least two of the frame units in parallel and at intervals, the first cable and the second cable are used to carry and support the photovoltaic components and are electrically connected to the photovoltaic components respectively.

2. The flexible photovoltaic support according to claim 1, characterized in that: The flexible photovoltaic support comprises at least two groups of transmission cables, and the at least two groups of transmission cables are used to respectively support and fix photovoltaic components; Wherein, at least two groups of the transmission cables are electrically connected to the inverter respectively; or, at least two groups of the transmission cables are connected to the inverter in parallel.

3. The flexible photovoltaic support according to claim 1, characterized in that: The first cable and the second cable are both provided with lead wires, and the ends of the lead wires are provided with connection terminals, and the connection terminals are used to cooperate with and plug into photovoltaic modules.

4. The flexible photovoltaic support according to claim 1, wherein: The transmission cable includes a core and a protective sheath, wherein the protective sheath wraps the core.

5. The flexible photovoltaic support according to claim 4, characterized in that: The wire core is a steel stranded wire or a steel core aluminum stranded wire; Alternatively, the wire core includes a conductive wire core and a supporting wire core, and the protective wire sheath wraps the conductive wire core and the supporting wire core.

6. The flexible photovoltaic support according to claim 4, characterized in that: The protective wire sheath includes an insulating layer, an armored protective layer and a protective outer sheath. The insulating layer wraps the wire core, the armored protective layer wraps the insulating layer, and the protective outer sheath wraps the armored protective layer.

7. The flexible photovoltaic support according to claim 4, characterized in that: The transmission cable further includes a conductive material filled between the core and the protective sheath.

8. The flexible photovoltaic support according to any one of claims 1 to 7, characterized in that: Insulator strings are respectively provided at both ends of the transmission cable, and the insulator strings are connected to the support frame.

9. The flexible photovoltaic support according to claim 8, characterized in that: The insulator string is provided with a first connecting fitting and a second connecting fitting, wherein the first connecting fitting connects one end of the insulator string and the transmission cable, and the second connecting fitting connects the other end of the insulator string and the frame unit.

10. The flexible photovoltaic support according to claim 8, characterized in that: The insulator string is a single-unit insulator string or a multi-unit insulator string; And / or, the insulator string includes at least two insulators, and the at least two insulators are sequentially connected end to end.

11. A photovoltaic power station, characterized in that: The photovoltaic power station includes photovoltaic components, an inverter and a flexible photovoltaic bracket. The flexible photovoltaic bracket is the flexible photovoltaic bracket described in any one of claims 1 to 10. The photovoltaic components are installed on the flexible photovoltaic bracket and electrically connected to the flexible photovoltaic bracket. The flexible photovoltaic bracket is electrically connected to the inverter.

Images