Solar Module Securing Structure for Height Alignment and Grounding
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Solution Overview
Problem
Existing securing structures for solar cell modules on roofs require complex adjustments for aligning heights and suffer from cumbersome grounding methods, leading to increased costs and potential corrosion issues.
Innovation Solution
A securing structure featuring a placement member with a groove and external thread, shim members with slits, and conductive connecting members with upward projecting portions to facilitate easy height adjustment and secure, corrosion-resistant grounding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the plurality of long crosspiece members are secured in parallel onto the roof material with aligned upper surfaces, then the solar cell modules can be mounted, but the adjustment of heights requires mature techniques and troublesome tasks
Solution Approach 1:
The crosspiece member is divided into multiple segments (first crosspiece member and second crosspiece member) that can be independently adjusted in height. Each segment can be separately positioned and secured, allowing flexible height adjustment without requiring complex overall structure modification. This segmentation enables easy adaptation to different roof conditions while maintaining structural integrity.
Solution Approach 2:
The crosspiece members are designed with movable and adjustable components that allow dynamic height adjustment during installation. The first and second crosspiece members can be positioned at different heights and securely connected, providing adaptability to various installation requirements without requiring precise pre-adjustment of the entire structure.
2Reliability
If grounding terminals are screwed on frame bodies of solar cell modules, then the modules can be grounded, but holes are opened on frame bodies which may cause corrosion
Solution Approach 1:
A dedicated grounding member is introduced as an intermediary component between the solar cell module frame and the grounding system. This grounding member has a through-hole for electrical connection but is designed to protect the frame body from direct exposure to corrosive elements. The grounding member serves as a sacrificial or protected interface, maintaining electrical connectivity while preventing corrosion of the expensive frame structure.
Solution Approach 2:
The grounding member is designed as a replaceable, cost-effective component that can be easily replaced if corroded. Rather than risking corrosion of the expensive solar cell module frame, the grounding member serves as a disposable or easily replaceable element that protects the main structure from corrosion while maintaining grounding functionality.
Data Source
AI summary
A securing structure for a solar cell module installed on a roof of a building, having an external thread portion extending upward from a placement member, at least one flat plate-like shim member having a slit through which the external thread portion passes and a through-hole and stacked on the placement member, a flat plate-like connecting member placed on the shim member having an insertion hole through which the external thread portion passes, a droop portion drooping in the groove of the placement member through the through-hole, and a plurality of upward projecting portions projecting upward and sticking in the solar cell module and being made of an electrically conductive material, and a first securing member and a second securing member pressing downward on the solar cell module and the solar cell module placed on the connecting member with the external thread portion screwed into an internal thread portion.