Solar Module Mounting Structure That Reuses Roof Screw Holes

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Solution Overview

Problem

The existing solar cell module securing structures require multiple parts and complex assembly, leading to increased facility and operation costs, and when solar cell modules need to be exchanged, the process can damage the roof structural member due to the need for new screw holes, compromising the roof's integrity.

Innovation Solution

A solar cell module securing structure that includes a first securing member connected to the solar cell module and a second securing member inserted between the first member and the roof structural member, with an inclined connecting portion and abutting portion to secure the module at a predetermined height and prevent damage to the roof by avoiding the need for new screw holes during module exchanges.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If solar cell modules are secured directly onto the roof structural member using securing members, then the number of parts is reduced and operation efficiency is enhanced, but when modules need to be exchanged, new screw holes must be created which damages the roof structural member

Engineering Contradiction:
Improveoperation efficiencyVSAvoiddamage to roof structural member
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a mounting board as an intermediary component between the securing members and the roof structural member. The mounting board is secured to the roof once and reused multiple times when solar cell modules are installed or exchanged. This mediator eliminates the need to create new screw holes in the roof structural member during module exchanges, thus preventing damage while maintaining high operation efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If multiple parts such as mounting stands in the form of parallel crosses are used to secure solar cell modules, then the solar cell modules can be securely installed, but the number of parts is increased leading to increased facility cost

Engineering Contradiction:
Improvesecuring strengthVSAvoidnumber of parts
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple separate components (mounting stand, securing members, and mounting board) into a simplified integrated system. The mounting board serves as both the support structure and the securing interface, eliminating the need for complex parallel cross mounting stands. This reduction in the number of parts lowers facility costs while maintaining reliable securing through the optimized mounting board design.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If multiple members such as roof securing clasps and lengthwise pieces are assembled on the roof, then solar cell modules can be supported, but the assembly process requires bad foothold and increased man-hours leading to increased operation cost

Engineering Contradiction:
Improvesupport stabilityVSAvoidease of assembly
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The mounting board is pre-assembled and prepared before being installed on the roof. The securing members are attached to the mounting board in advance, creating a pre-configured assembly unit. This preliminary preparation eliminates the need for complex on-roof assembly operations, reducing the need for bad foothold conditions and decreasing the man-hours required for installation while maintaining stable support for solar cell modules.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS8453394B2Solar cell module securing structure
Publication Date: 2013.06.04 YANEGIJUTSUKENKYUJO CO LTD
  • US8453394B2 patent drawing
  • US8453394B2 patent drawing
  • US8453394B2 patent drawing

AI summary

A solar cell module securing structure includes a solar cell module, a first securing member that supports the solar cell module, a second securing member that includes an installation connecting portion having an installing portion on which the first securing member is installed, an inclined connecting portion extending from the installation connecting portion, and an abutting portion that is bent from the inclined connecting portion so as to extend along a structural surface of a roof structural member, and spacer members which are laminated between the first securing member and the second securing member at multiple stages. Further, a long hole portion having a long hole shape, which penetrates through the installing surface, is formed on the installing portion of the installation connecting portion, thereby making fine adjustment of a securing position of the first securing member with respect to the second securing member.