A method for arranging power generation glass and electric shutter glass circuits
Through photovoltaic string combination, precise jumper connection and standardized connector application, the line layout of the power generation glass system is optimized, and PVC protection tube wiring, dual-channel power supply and intelligent switching are used in the electric louver glass system, which solves the problems of lengthy lines, chaotic layout, and unstable power supply in the existing technology, and achieves efficient and stable power supply and system coordinated power supply.
Patent Information
- Application Number
- CN202510061504.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-04-04
AI Technical Summary
The existing line layout methods for power generation glass and electric louver glass have problems such as lengthy lines, chaotic layout, high construction difficulty, high maintenance cost and unstable power supply, and lack of intelligent switching of energy storage priority and backup of municipal power supply and coordinated power supply methods for power generation glass energy storage systems and electric louver glass control systems.
The circuit arrangement of the power generation glass system is optimized by using photovoltaic string combination, precise jumper connection, standardized connector application and indoor cable tray management methods; in the electric louver glass system, PVC protection tube wiring, dual-channel power supply and intelligent switching, intelligent switching is achieved by energy storage priority and municipal power backup, and coordinated power supply is achieved through independent switch control.
It improves the power output efficiency and stability of the power generation glass system, reduces voltage drop, facilitates maintenance and extends the cable life; ensures the line safety and operation stability of the electric louver glass system; enhances the system's earthquake resistance; optimizes the allocation of power resources, and reduces the dependence on municipal power.
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Figure CN119765619A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of glass technology, and more specifically, to a method for arranging power generation glass and electric blind glass circuits. Background Art
[0002] At present, as important components of intelligent buildings, power-generating glass and electric blinds have been gradually applied to energy-saving and environmentally friendly buildings, but the existing line layout methods still face many challenges. Power-generating glass usually requires multiple groups of series units to be connected through jumpers and introduced into the room, and then the power distribution is completed through the inverter and energy storage battery. However, in actual installation, the optimization design of jumper length, connector compatibility and cable path is complex, which can easily lead to lengthy lines or chaotic layout, thereby increasing construction difficulty and maintenance costs. The line layout of electric blinds needs to consider the coordination of group control and power supply. Among them, each group of grid lines needs to pass through the PVC protective tube into the building and connect the wall control switch to achieve operation. However, this decentralized control mode may increase the difficulty of wiring in actual applications due to unreasonable cable layout, and even cause unstable power supply. In addition, for the integration of the overall system, there is an urgent need for a method that can realize intelligent switching of energy storage priority and mains backup through a dual-way power supply device, and realize the coordinated power supply of the power-generating glass energy storage system and the electric blinds control system. Summary of the invention
[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a method for arranging power generation glass and electric louver glass lines, which is achieved by adopting photovoltaic string combinations, accurately connecting jumpers, applying standardized connectors and managing indoor cable trays in the power generation glass system to avoid cable crossing and redundant layout, and adopting grouping and PVC protective tube wiring in the electric louver glass system, dual power supply and intelligent switching to achieve intelligent switching of energy storage priority and AC power backup. At the same time, independent switch control of each system realizes coordinated power supply and optimizes the allocation of power resources to solve the problems raised in the above-mentioned background technology.
[0004] To achieve the above object, the present invention provides the following technical solutions:
[0005] A method for arranging power generation glass and electric shutter glass circuits, comprising the following steps:
[0006] Step S1, the power generation glass system is composed of photovoltaic strings, the positive and negative cables of each string are connected through wiring and jumper connections, and the cables are connected to the inverter and energy storage battery using standardized photovoltaic connectors;
[0007] Step S2, the electric louver glass system arranges power cables through a PVC protective tube, and adopts a dual-power supply mode, combining the mains power and the energy storage system;
[0008] Step S3, the cable tensile force caused by wind load must meet the safe tensile limit. At the same time, the seismic load will cause the cable to deflect. Strengthen the cable fixing method, use seismic brackets and reinforce the connection points to improve the seismic resistance;
[0009] Step S4, each system adopts independent switch control to achieve coordinated power supply;
[0010] In step S1, the layout of the power generation glass line is designed according to the actual site conditions to avoid cable crossing and redundant layout. The cables are uniformly introduced into the distribution room using indoor cable trays to reduce the degree of cable bending and maintain appropriate tension. At the same time, by real-time monitoring of the temperature increase ΔT of the cable, maintenance personnel can locate the fault point, thereby reducing downtime and improving maintenance efficiency. The calculation formula of the temperature increase ΔT is: Where k is the thermal conductivity of the cable. If ΔT>T thr , it means the cable is faulty and needs maintenance. thr It is the preset temperature rise threshold.
[0011] As a further solution of the present invention, in step S1, the power generation glass system is composed of photovoltaic strings, and the positive and negative cables of each string are connected by wiring and jumper connection, and the cables are connected to the inverter and energy storage battery using standardized photovoltaic connectors, including the following specific contents: Each group of power generation glass systems includes five groups of photovoltaic strings, each of which is composed of multiple photovoltaic panels and is responsible for converting solar energy into electrical energy. During the wiring process, the positive and negative cables of each string are connected by jumpers. The connection method of the jumpers directly affects the power output efficiency and stability of the system, so accurate measurements and adjustments are made according to the actual installation conditions on site. After the jumpers are laid, the cables need to be connected to the inverter and energy storage battery through standard photovoltaic connectors. Select a photovoltaic connector of a certified model to ensure that it has good weather resistance and electrical performance. The photovoltaic connector has a standardized interface. The inverter is responsible for converting the direct current output of the photovoltaic panel into alternating current for internal use in the building or grid-connected power generation. The connection between the inverter and the energy storage battery enables the photovoltaic system to self-regulate electricity, and can store excess electricity in the energy storage battery when there is sufficient sunlight during the day, so that it can be used in low-light environments such as at night or on cloudy days. The connection between the jumper and the photovoltaic connector, inverter and energy storage battery must not only comply with electrical standards, but also undergo rigorous testing to ensure that the system is stable and efficient in actual operation. Usually, the installer will conduct on-site voltage, current, impedance and other parameters to ensure that the current path is unobstructed and the voltage is stable to ensure the normal operation of the system.
[0012] In the process of laying out the power generation glass lines, in order to avoid cable crossing and redundant arrangement, it is necessary to carry out detailed line layout design according to the actual site conditions. Cables should be avoided from crossing as much as possible to ensure that each jumper has a clear path to avoid signal interference, current instability or inconvenience during construction and maintenance due to line interweaving or overlapping. If the cable is too long or improperly laid out, the current may not flow stably, causing voltage drop. The voltage drop calculation formula is: Among them, ΔV is the voltage drop, I is the current, R is the resistance of the cable, and L is the length of the cable. Therefore, in path planning, avoiding too long cable paths helps reduce voltage drops and ensure stable current transmission. In order to simplify and optimize the line layout, all cables are uniformly introduced into the distribution room using indoor cable trays. The cable trays not only provide a clear and tidy cable management system, but also effectively prevent cables from being compressed or damaged due to narrow space or disordered layout. Guiding the cable path through the cable tray can reduce the degree of bending of the line and maintain the appropriate tension of the cable, ensuring the service life of the cable and smooth transmission of current.
[0013] As a further solution of the present invention, in step S2, the electric venetian blinds system arranges power cables through a PVC protective tube, and adopts a dual-power supply mode, combined with the mains and energy storage system, including the following specific contents: in the line layout of the electric venetian blinds, every three grids are designed as a group, with a total of seven groups, and the power cables of each group need to be introduced into the room through a PVC protective tube. The main purpose of this arrangement is to ensure that the line can be effectively protected under the influence of the external environment and physical pressure, and to avoid electrical failures caused by moisture, friction or other factors of the cable. The PVC protective tube can not only provide mechanical protection, but also has certain waterproof and anti-corrosion functions, especially in outdoor or humid environments, which can extend the service life of the line. After entering the room, the line is introduced into the building through a pipeline system and connected to a predetermined control position through a wiring path. The wall-controlled switch is installed on the wall where the electric venetian blinds are located, which can realize group control, so that the user can independently adjust the opening and closing status of each group of blinds.
[0014] In the circuit layout of electric blinds, a dual-power supply mode is adopted, combining the mains power and the energy storage system to ensure the stable operation of the electric blinds in different usage scenarios. The mains power is used as the main power source, and the energy storage system is used as the auxiliary power source to ensure that the electric blinds can continue to work normally when the mains power is interrupted or insufficient. The dual-power supply mode realizes intelligent power management through a dual power automatic switching device (ATS, automatic switching switch). By default, the energy storage battery is used for power supply first, and when the energy storage battery power E battery Reduce to threshold E thrWhen the power is turned off, it will automatically switch to the backup mains power supply to prevent the electric blinds from stopping working due to insufficient power.
[0015] The energy storage battery is charged by solar photovoltaics. During the day, the photovoltaic power generation system can provide continuous power support for the electric blind glass system by storing excess electrical energy in the energy storage battery.
[0016] As a further solution of the present invention, in step S3, the cable tensile force caused by wind load must meet the safe tensile limit, and the earthquake load will cause the cable to deflect, and the cable fixing method is strengthened, and the earthquake resistance is improved by using earthquake-resistant brackets and reinforcing connection points, including the following specific contents: In high-rise buildings, especially in the design of glass curtain walls, wind loads will affect the layout of the lines. The standard value calculation formula of wind load is: F wind =q(z)·C f A, where E wind is the standard value of wind load, q(z) is the wind pressure at height z, C f is the body coefficient, A is the force-bearing area, and the wind pressure q(z) satisfies q(z)=0.613·v 2 , where v is the wind speed at the height; the cable is under wind load F wind The tensile force F is generated under the action of cable : Where ρ is the air density, C d is the resistance coefficient of the cable, A cable is the windward area of the cable, v is the wind speed, L is the suspended length of the cable; the safe tensile limit of the cable F max The calculation formula is: max =σ cable ·A cable , where σ cable is the tensile strength of the cable material; in order to ensure that the cable will not break due to wind load, the tensile force caused by wind load is made smaller than the safe tensile force of the cable, that is, F cable ≤F max , through the above calculation formula, we can get: After simplification, the limiting formula for the cable's hanging length is obtained: The limiting formula shows that at a certain wind speed v, air density ρ and cable material tensile strength σ cable In this case, the maximum hanging length L of the cable is limited.
[0017] In addition to wind loads, seismic loads also have an impact on glass curtain walls and their wiring layout. Under strong earthquakes, cable lines may be damaged or offset due to vibrations. The calculation formula for the standard value of the distributed horizontal seismic load perpendicular to the curtain wall plane is: Fear =k z ·W·S, where k z is the seismic influence coefficient, W is the deadweight of the glass curtain wall structure, and S is the seismic acceleration coefficient. In order to improve the seismic resistance of the glass curtain wall and its line layout, the cable fixing method is strengthened to avoid damage to the cable caused by vibration and displacement caused by earthquakes. The strengthening cable fixing method includes using seismic brackets and reinforced connection points. The seismic bracket adopts materials with high seismic resistance, such as steel or reinforced plastic, which can effectively absorb and disperse seismic loads. The connection points between the cable and electrical equipment or other supporting structures are prone to loosening or falling off under the action of earthquakes. Therefore, high-strength fasteners, seismic connectors or special seismic materials can be used to reinforce these connection points to ensure that the connection between the cable and the equipment is tight and reliable. At key nodes, the use of elastic or flexible materials, such as rubber washers or spring brackets, can also effectively alleviate the direct impact of seismic vibrations on cables and supporting structures, further improving the seismic resistance of the overall system.
[0018] As a further solution of the present invention, in step S4, each system adopts independent switch control to realize coordinated power supply, including the following specific contents: the power generation glass system and the electric louver glass system adopt independent switch control and are equipped with independent power switches. Through these switches, the start and stop states of the power generation glass system and the electric louver glass system can be independently controlled, so as to effectively allocate power resources. The power generation glass system generates electricity through photovoltaic power generation, and the electricity is first supplied to the electric louver glass system, and the remaining electricity is stored in the energy storage battery. Through independent switch control, it can be ensured that when the power generation glass system generates electricity, the electric louver glass system is powered first; and when the energy storage battery has sufficient power, the energy storage battery will assume the power supply, avoiding excessive dependence on the mains. The independent control mechanism can be dynamically adjusted according to actual needs. When the electric louver glass system needs maintenance or fault detection, its power supply can be cut off separately without affecting the operation of other systems, thus ensuring the normal operation of other equipment.
[0019] The technical effects and advantages of the power generation glass and electric louver glass line layout method of the present invention are as follows: in the power generation glass system of the present invention, through photovoltaic string combination, precise jumper connection, standardized connector application and indoor cable bridge management, the power output efficiency and stability are improved, the voltage drop is reduced, maintenance is convenient and the cable life is extended; the electric louver glass system adopts grouping and PVC protective pipe wiring, dual power supply and intelligent switching to ensure line safety and operational stability; at the same time, considering the influence of wind load and seismic load, the cable layout restriction conditions are obtained, and seismic measures are adopted to enhance the seismic resistance of the system; independent switch control of each system realizes coordinated power supply, optimizes the allocation of power resources, and reduces dependence on municipal electricity. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 The present invention is a flow chart of a method for arranging power generation glass and electric louver glass circuits.
[0021] Figure 2 This is a schematic diagram of a photovoltaic connector used in the present invention.
[0022] Figure 3 It is a schematic diagram of the power consumption range of the exhibition hall of the present invention. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0024] Example 1
[0025] See also Figure 1 As shown in the flowchart, the embodiment of the present invention provides a method for arranging power generation glass and electric blind glass circuits, which includes the following steps:
[0026] Step S1, the power generation glass system is composed of photovoltaic strings, the positive and negative cables of each string are connected through wiring and jumper connections, and the cables are connected to the inverter and energy storage battery using standardized photovoltaic connectors;
[0027] Step S2, the electric louver glass system arranges power cables through a PVC protective tube, and adopts a dual-power supply mode, combining the mains power and the energy storage system;
[0028] Step S3, the cable tensile force caused by wind load must meet the safe tensile limit. At the same time, the seismic load will cause the cable to deflect. Strengthen the cable fixing method, use seismic brackets and reinforce the connection points to improve the seismic resistance;
[0029] In step S4, each system adopts independent switch control to achieve coordinated power supply.
[0030] Furthermore, in step S1, the power-generating glass system is composed of photovoltaic strings, and the positive and negative cables of each string are connected by wiring and jumper connections, and the cables are connected to the inverter and energy storage battery using standardized photovoltaic connectors, including: each group of power-generating glass systems includes five groups of photovoltaic strings, and each string is composed of multiple photovoltaic panels, which are responsible for converting solar energy into electrical energy. During the wiring process, the positive and negative cables of each string are connected by jumpers. The connection method of the jumpers directly affects the power output efficiency and stability of the system, so it is precisely measured and adjusted according to the actual installation conditions on site. After the jumpers are laid, the cables need to be connected to the inverter and energy storage battery through standard photovoltaic connectors. See Figure 2 This is a schematic diagram of the photovoltaic connector used in the present invention. A certified photovoltaic connector is selected to ensure that it has good weather resistance and electrical performance. The photovoltaic connector has a standardized interface. The inverter is responsible for converting the direct current output by the photovoltaic panel into alternating current for use inside the building or for grid-connected power generation. The connection between the inverter and the energy storage battery enables the photovoltaic system to have the ability to self-regulate electricity, and can store excess electricity in the energy storage battery when there is sufficient light during the day, so that it can be used in low-light environments such as at night or on cloudy days. The connection between the jumper and the photovoltaic connector, inverter and energy storage battery must not only comply with electrical standards, but also undergo rigorous testing to ensure that the system is stable and efficient in actual operation. Usually, the installer will conduct on-site voltage, current, impedance and other parameters to ensure that the current path is unobstructed and the voltage is stable to ensure the normal operation of the system.
[0031] In the process of laying out the power generation glass lines, in order to avoid cable crossing and redundant arrangement, it is necessary to carry out detailed line layout design according to the actual site conditions. Cables should be avoided from crossing as much as possible to ensure that each jumper has a clear path to avoid signal interference, current instability or inconvenience during construction and maintenance due to line interweaving or overlapping. If the cable is too long or improperly laid out, the current may not flow stably, causing voltage drop. The voltage drop calculation formula is: Among them, ΔV is the voltage drop, I is the current, R is the resistance of the cable, and L is the length of the cable. Therefore, in path planning, avoiding too long cable paths helps reduce voltage drops and ensure stable current transmission. In order to simplify and optimize the line layout, all cables are uniformly introduced into the distribution room using indoor cable trays. The cable trays not only provide a clear and tidy cable management system, but also effectively prevent cables from being compressed or damaged due to narrow space or disordered layout. Guiding the cable path through the cable tray can reduce the degree of bending of the line and maintain the appropriate tension of the cable, ensuring the service life of the cable and smooth transmission of current.
[0032] By real-time monitoring of the temperature rise ΔT of the cable, maintenance personnel can locate the fault point, thereby reducing downtime and improving maintenance efficiency. The calculation formula of the temperature rise ΔT is: Where k is the thermal conductivity of the cable. If ΔT>T thr , it means the cable is faulty and needs maintenance. thr It is the preset temperature rise threshold.
[0033] Furthermore, in step S2, the electric venetian blind system arranges power cables through a PVC protective tube, and adopts a dual-power supply mode, combining the mains and the energy storage system, including: in the line layout of the electric venetian blind, every three grids are designed as a group, with a total of seven groups, and the power cables of each group need to be introduced into the room through a PVC protective tube. The main purpose of this arrangement is to ensure that the line can be effectively protected under the influence of the external environment and physical pressure, and to avoid electrical failures caused by moisture, friction or other factors of the cable. The PVC protective tube can not only provide mechanical protection, but also has certain waterproof and anti-corrosion functions, especially in outdoor or humid environments, which can extend the service life of the line. After entering the room, the line is introduced into the building through a pipeline system and connected to a predetermined control position through a wiring path. The wall-controlled switch is installed on the wall where the electric venetian blind is located, which can realize group control, so that the user can independently adjust the opening and closing status of each group of blinds.
[0034] In the circuit layout of electric blinds, a dual-power supply mode is adopted, combining the mains power and the energy storage system to ensure the stable operation of the electric blinds in different usage scenarios. The mains power is used as the main power source, and the energy storage system is used as the auxiliary power source to ensure that the electric blinds can continue to work normally when the mains power is interrupted or insufficient. The dual-power supply mode realizes intelligent power management through a dual power automatic switching device (ATS, automatic switching switch). By default, the energy storage battery is used for power supply first, and when the energy storage battery power E battery Reduce to threshold E thr When the power is turned off, it will automatically switch to the backup mains power supply to prevent the electric blinds from stopping working due to insufficient power.
[0035] The energy storage battery is charged by solar photovoltaics. During the day, the photovoltaic power generation system can provide continuous power support for the electric blind glass system by storing excess electrical energy in the energy storage battery.
[0036] Furthermore, in step S3, the cable tensile force caused by wind load must meet the safety tensile limit. At the same time, the seismic load will cause the cable to deflect. Strengthening the cable fixing method, using seismic brackets and reinforcing connection points to improve the seismic resistance includes: In high-rise buildings, especially in the design of glass curtain walls, wind loads will affect the layout of the line. The standard value of wind load is calculated as: F wind =q(z)·C f A, where F wind is the standard value of wind load, q(z) is the wind pressure at height z, C f is the body coefficient, A is the force-bearing area, and the wind pressure q(z) satisfies q(z)=0.613·v 2 , where v is the wind speed at the height; the cable is under wind load F wind The tensile force F is generated under the action of cable : Where ρ is the air density, C d is the resistance coefficient of the cable, A cable is the windward area of the cable, v is the wind speed, L is the suspended length of the cable; the safe tensile limit of the cable F max The calculation formula is: max =σ cable ·A cable , where σ cable is the tensile strength of the cable material; in order to ensure that the cable will not break due to wind load, the tensile force caused by wind load is made smaller than the safe tensile force of the cable, that is, F cable ≤F max , through the above calculation formula, we can get: After simplification, the limiting formula for the cable's hanging length is obtained: The limiting formula shows that at a certain wind speed v, air density ρ and cable material tensile strength σ cable In this case, the maximum hanging length L of the cable is limited.
[0037] In addition to wind loads, seismic loads also have an impact on glass curtain walls and their wiring layout. Under strong earthquakes, cable lines may be damaged or offset due to vibrations. The calculation formula for the standard value of the distributed horizontal seismic load perpendicular to the curtain wall plane is: F ear =k z ·W·S, where k zis the seismic influence coefficient, W is the deadweight of the glass curtain wall structure, and S is the seismic acceleration coefficient. In order to improve the seismic resistance of the glass curtain wall and its line layout, the cable fixing method is strengthened to avoid damage to the cable caused by vibration and displacement caused by earthquakes. The strengthening cable fixing method includes using seismic brackets and reinforced connection points. The seismic bracket adopts materials with high seismic resistance, such as steel or reinforced plastic, which can effectively absorb and disperse seismic loads. The connection points between the cable and electrical equipment or other supporting structures are prone to loosening or falling off under the action of earthquakes. Therefore, high-strength fasteners, seismic connectors or special seismic materials can be used to reinforce these connection points to ensure that the connection between the cable and the equipment is tight and reliable. At key nodes, the use of elastic or flexible materials, such as rubber washers or spring brackets, can also effectively alleviate the direct impact of seismic vibrations on cables and supporting structures, further improving the seismic resistance of the overall system.
[0038] Furthermore, in step S4, each system is controlled by an independent switch to achieve coordinated power supply, including: the power generation glass system and the electric louver glass system are controlled by an independent switch and are equipped with independent power switches. Through these switches, the start and stop states of the power generation glass system and the electric louver glass system can be independently controlled, thereby effectively allocating power resources. The power generation glass system generates electricity through photovoltaic power generation, and the electricity is first supplied to the electric louver glass system, and the remaining electricity is stored in the energy storage battery. Through independent switch control, it can be ensured that when the power generation glass system generates electricity, the electric louver glass system is powered first; and when the energy storage battery has sufficient power, the energy storage battery will assume the power supply, avoiding excessive dependence on the mains. The independent control mechanism can be dynamically adjusted according to actual needs. When the electric louver glass system needs maintenance or fault detection, its power supply can be cut off separately without affecting the operation of other systems, thus ensuring the normal operation of other equipment.
[0039] In this embodiment, see Figure 3 As shown in the schematic diagram, the 15 lighting lamps, the floor light strips on the platform, and the wall-controlled switches of the electric blinds in the exhibition hall are powered by dual power supply mode. One power supply is powered by the mains, and the other power supply is powered by the energy storage battery of the power generation glass system. A dual power conversion device is installed in the power distribution room, which gives priority to the power of the energy storage battery, and the mains is used as a backup power source. When the power of the energy storage battery is insufficient, it automatically switches to the mains. Lead out a line from the distribution box to connect the dual power conversion device; lead out a line from the energy storage battery to connect the dual power conversion device; set the dual power conversion device to the automatic state. Lead out cables from the dual power conversion device and connect them to the electrical loads in the exhibition hall.
[0040] In the power generation glass system of the present invention, the efficiency and stability of power output are improved, the voltage drop is reduced, maintenance is convenient and the cable life is extended through the combination of photovoltaic strings, precise jumper connection, application of standardized connectors and indoor cable bridge management; the electric louver glass system adopts grouping and PVC protective pipe wiring, dual power supply and intelligent switching to ensure line safety and operational stability; at the same time, the influence of wind load and seismic load is considered to obtain cable laying restrictions, and seismic measures are adopted to enhance the seismic resistance of the system; independent switch control of each system realizes coordinated power supply, optimizes the allocation of power resources, and reduces dependence on municipal electricity.
[0041] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
[0042] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A method for arranging power generation glass and electric shutter glass circuits, characterized in that: The steps include: Step S1, the power generation glass system is composed of photovoltaic strings, the positive and negative cables of each string are connected through wiring and jumper connections, and the cables are connected to the inverter and energy storage battery using standardized photovoltaic connectors; Step S2, the electric louver glass system arranges power cables through a PVC protective tube, adopts a dual-circuit power supply mode, and combines the mains power and the energy storage system; Step S3, the cable tensile force caused by wind load must meet the safe tensile limit. The earthquake load will cause the cable to deflect. Strengthen the cable fixing method, use earthquake-resistant brackets and reinforce the connection points to improve the earthquake resistance; Step S4, each system adopts independent switch control to achieve coordinated power supply; In step S1, the layout of the power generation glass line is designed according to the actual site conditions, and the cables are uniformly introduced into the distribution room using the indoor cable tray to reduce the bending degree of the cables and maintain appropriate tension. At the same time, by real-time monitoring of the temperature rise ΔT of the cables, maintenance personnel can locate the fault point, thereby reducing downtime and improving maintenance efficiency. The calculation formula of the temperature rise ΔT is: Where k is the thermal conductivity of the cable. If ΔT>T thr , it means the cable is faulty and needs maintenance. thr It is the preset temperature rise threshold.
2. A method for arranging power generation glass and electric shutter glass circuits according to claim 1, characterized in that In step S1, each group of power generation glass system includes five groups of photovoltaic strings, each group of strings is composed of photovoltaic panels, the jumper connection is measured and adjusted according to the actual installation situation on site, the inverter is connected to the energy storage battery to realize power storage and regulation, the inverter converts the direct current output by the photovoltaic panel into alternating current, the connection between the jumper and the photovoltaic connector, inverter and energy storage battery complies with electrical standards and undergoes on-site voltage, current and impedance parameter detection to ensure that the current path is unobstructed and the voltage is stable.
3. A method for arranging power generation glass and electric shutter glass circuits according to claim 1, characterized in that In step S2, the electric blinds are divided into seven groups of three grids each. Each group of power cables is introduced into the room through a PVC protective tube. The PVC protective tube has waterproof and corrosion-resistant functions. After entering the room, it is connected to the wall control switch to realize group control. The electric blinds adopt a dual-power supply mode, which is realized by a dual-power automatic switching device. By default, the energy storage battery is used for power supply. When the energy storage battery power E battery Reduce to threshold E thr It automatically switches to mains power supply and the energy storage battery is charged by solar photovoltaic.
4. A method for arranging power generation glass and electric shutter glass circuits according to claim 1, characterized in that: In step S3, the wind load will affect the layout of the line. The standard value calculation formula of the wind load is: wind =q(z)·C f A, where F wind is the standard value of wind load, q(z) is the wind pressure at height z, C f is the body coefficient, A is the force-bearing area, and the wind pressure q(z) satisfies q(z)=0.613·v 2 , where v is the wind speed at the height; the cable is under wind load F wind The tensile force F is generated under the action of cable : Where ρ is the air density, C d is the resistance coefficient of the cable, A cable is the windward area of the cable, v is the wind speed, L is the suspended length of the cable; the safe tensile limit of the cable F max The calculation formula is: max =σ cable ·A cable , where σ cable is the tensile strength of the cable material; in order to ensure that the cable will not break due to wind load, the tensile force caused by wind load is made smaller than the safe tensile force of the cable, that is, F cable ≤F max , through the above calculation formula, we can get: After simplification, the limiting formula for the cable's hanging length is obtained: The limiting formula shows that at a certain wind speed v, air density ρ and cable material tensile strength σ cable In this case, the maximum hanging length L of the cable is limited.
5. The method for arranging power generation glass and electric shutter glass circuit according to claim 1, characterized in that: In step S3, the seismic load also affects the glass curtain wall and its wiring arrangement. Under the action of a strong earthquake, the cable line may be damaged or offset due to vibration. The calculation formula for the standard value of the distributed horizontal seismic load perpendicular to the curtain wall plane is: F ear =k z ·W·S, where k z is the earthquake influence coefficient, W is the deadweight of the glass curtain wall structure, and S is the earthquake acceleration coefficient. In order to improve the earthquake resistance of the glass curtain wall and its line layout, the cable fixing method is strengthened to avoid damage to the cable caused by vibration and displacement caused by earthquakes; the strengthening cable fixing method includes adopting earthquake-resistant brackets and reinforcing connection points; the earthquake-resistant brackets are made of materials with high earthquake resistance, such as steel or reinforced plastics, which can effectively absorb and disperse earthquake loads.
6. The method for arranging power generation glass and electric shutter glass circuit according to claim 1, characterized in that: In step S4, the power generation glass system and the electric louver glass system are equipped with independent power switches, which can control the start and stop states separately. The power generation glass system generates electricity to supply the electric louver glass system first, and the remaining electricity is stored in the energy storage battery and dynamically adjusted according to actual needs.
7. The method for arranging power generation glass and electric shutter glass circuit according to claim 1, characterized in that: The structure, material and installation method of the indoor cable tray are designed according to the number, specifications and wiring space of cables.
8. The method for arranging power generation glass and electric shutter glass circuit according to claim 1, characterized in that: The diameter, wall thickness and material of the PVC protective tube are selected according to the specifications, quantity and use environment of the power cables.
9. The method for arranging power generation glass and electric shutter glass circuit according to claim 1, characterized in that: The number of photovoltaic strings, the number of photovoltaic panels in each string and the connection method are adjusted according to power generation requirements and installation environment.