Frameless PV Module Spacer Clamp Fixation
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Solution Overview
Problem
Frameless photovoltaic modules face detachment issues under strong external stresses like wind or snow due to inadequate fixation, as conventional clamps fail to securely hold the laminated structure.
Innovation Solution
Incorporating a spacer within the laminated structure to connect it securely with the clamp, ensuring the spacer is inserted into the encapsulating material and locked in the clamp, providing a robust attachment mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional clamps are used to attach the laminated structure without a frame, then the device complexity is reduced and manufacturing cost is lowered, but the reliability of attachment under strong external stresses deteriorates
Solution Approach 1:
The patent introduces a fixation element as an intermediary component between the clamp and the laminated structure. This fixation element penetrates through the laminated structure and is secured by the clamp, creating a reliable mechanical connection without requiring a full frame. The fixation element acts as a mediator that transfers and distributes the clamping force effectively across the laminated structure, solving the detachment problem while maintaining the frameless design.
2Ease of operation
If the clamp exerts transverse force on the laminated layers to hold the structure, then the ease of operation is improved and installation is simplified, but the stability of the laminated structure under external loads deteriorates
Solution Approach 1:
The patent transitions from a two-dimensional surface clamping approach to a three-dimensional penetration approach. The fixation element extends through the thickness of the laminated structure, creating anchorage in multiple layers. This dimensional change allows the clamp to secure the structure not just at the surface but throughout the depth, significantly improving stability while maintaining ease of installation through the simple insertion and clamping process.
Data Source
Figure 1~2B
Figure 3A~3B
Figure 4~6B
AI summary
The invention relates to a photovoltaic assembly comprising a frameless photovoltaic module (500) having a laminated structure (100) successively comprising: - a first protective layer (120), - an assembly (130) encapsulating a plurality of interconnected photovoltaic cells, and - a second protective layer (125), - at least one clamping clip (200) mounted on the edge of the laminated structure (100), and - at least one spacer (300) inserted at least partially into the laminated structure (100) and comprising means for making it integral with said clamping clip (200).