Views: 0 Author: Site Editor Publish Time: 2025-12-25 Origin: Site
Cantilever-type balcony brackets: Mainly fixed on the balcony railing or parapet wall, with a cantilever structure to extend PV modules outward. It is suitable for balconies with limited internal space and requires high structural stability.
Rail-mounted balcony brackets: Equipped with guide rails to adjust the installation angle and position of PV modules flexibly. It has strong compatibility with different specifications of PV modules and is convenient for later maintenance and replacement.
Integrated balcony brackets: Combined with balcony railings or guardrails, integrating the functions of protection and PV module support. It saves installation space and has a more aesthetic appearance, which is widely used in new residential buildings.
| Material Type | Density (g/cm³) | Yield Strength (MPa) | Corrosion Resistance | Service Life (Years) | Application Scenarios |
|---|---|---|---|---|---|
| Aluminum Alloy (6063-T5) | 2.7 | ≥205 | Excellent (anodized surface treatment) | 25-30 | Most residential balconies, suitable for areas with high humidity |
| Stainless Steel (304) | 7.93 | ≥205 | Superior (resistant to acid, alkali and salt spray) | 30-35 | Coastal areas, areas with harsh environmental conditions |
| Galvanized Steel (Q235B) | 7.85 | ≥235 | Good (hot-dip galvanized treatment) | 20-25 | Low-cost projects, balconies with heavy load requirements |
Load calculation: Comprehensive consideration of static loads (PV module weight, bracket self-weight) and dynamic loads (wind load, snow load, seismic load). For example, in areas with high wind speed (such as coastal areas), the wind pressure coefficient should be calculated according to the local wind speed grade to ensure that the bracket does not deform or collapse under extreme wind conditions.
Connection structure: The connection between the bracket and the balcony (railing, wall) adopts high-strength fasteners (such as stainless steel expansion bolts, chemical anchor bolts) to ensure reliable connection without damaging the building structure. At the same time, anti-loosening measures (such as lock washers, thread glue) are adopted to prevent fastener loosening caused by long-term vibration.
Angle adjustment mechanism: The installation angle of PV modules directly affects the power generation efficiency. The optimized bracket design should realize stepless adjustment or multi-angle positioning of the module angle, so that the PV modules can receive maximum solar radiation throughout the year.
Lightweight design: On the premise of meeting the load-bearing requirements, adopt lightweight materials (such as high-strength aluminum alloy) and optimize the structural section (such as hollow section) to reduce the self-weight of the bracket, thereby reducing the load on the building balcony.
Anti-corrosion enhancement: For aluminum alloy brackets, adopt two-step surface treatment of anodizing + powder coating to improve corrosion resistance; for steel brackets, increase the galvanizing layer thickness (≥85μm) or adopt galvanizing + powder coating composite treatment to extend the service life.
Modular design: Adopt modular structure to realize standardized production and on-site quick installation, reducing installation time and labor cost. At the same time, modular design is convenient for later maintenance and replacement of components.
On-site survey: Before installation, conduct a comprehensive survey of the balcony structure, size, load-bearing capacity and surrounding environment to confirm the installation position and bracket type, and formulate a personalized installation plan.
Component inspection: Check the quality of brackets, fasteners and other components to ensure that there are no defects such as deformation, corrosion and cracks, and the specifications are consistent with the design requirements.
Fixing the bracket base: Install the bracket base on the balcony railing or wall according to the installation plan, and use a level to adjust the levelness and verticality of the base to ensure that the error is within ±2mm/m.
Installing guide rails and PV modules: Fix the guide rails on the base, adjust the installation angle, and then install the PV modules on the guide rails, and fasten them with pressing blocks to ensure that the modules are closely attached to the guide rails without looseness.
Post-installation inspection: Conduct load testing, anti-loosening inspection and insulation testing on the installed brackets to ensure that all performance indicators meet the requirements, and clean the construction site.
Intelligent integration: Integrate intelligent adjustment devices (such as sunlight trackers) and Internet of Things (IoT) sensors to realize real-time monitoring of bracket angle, load status and power generation efficiency, and realize automatic adjustment of bracket angle according to sunlight changes to improve power generation efficiency.
Multi-functional integration: Combine solar balcony brackets with balcony greening, outdoor lighting and other functions to realize multi-functional utilization of balcony space and improve the comprehensive value of the bracket.
New material application: Develop and apply new materials such as carbon fiber composites to further improve the strength, corrosion resistance and lightweight performance of the bracket, and reduce the cost.
