Solar Module Holder With Bridge-Arch Spring for Stable Roof Assembly
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Solution Overview
Problem
The existing system for mounting solar modules on roofs is cumbersome due to the need for butterfly springs that can be easily deformed by transverse forces, making it difficult for a single craftsman to assemble or disassemble the components without additional support.
Innovation Solution
The improved holder system features a bridge-arch spring design with undercuts and a groove structure that enhances stability and reduces lateral deformation, allowing for easier assembly and disassembly of crossbeams without increasing production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a butterfly spring is used in the holder to enable easy clipping of crossbeams, then the assembly process becomes simpler, but the spring is easily deformed by transverse forces and becomes unusable
Solution Approach 1:
The spring is segmented into three distinct parts: a central arched section for deformation during clipping, and two flat end sections that engage with the groove undercuts. This segmentation allows the spring to be pressed at its center without the ends digging into the crossbar, resolving the contradiction between ease of operation and reliability.
Solution Approach 2:
The spring design transitions from a two-dimensional butterfly shape to a three-dimensional bridge-arch structure with vertical thickness. The arched section provides vertical deformation capability while the end sections extend laterally to engage groove undercuts, preventing lateral deformation and improving reliability.
2Device complexity
If a butterfly spring with free ends is used, then the holder structure remains simple, but the free ends can dig into the underside of the crossbar making removal difficult
Solution Approach 1:
The spring is divided into an arched central section and flat end sections. The flat ends engage with groove undercuts rather than being free, preventing them from digging into the crossbar while maintaining overall structural simplicity.
Solution Approach 2:
The groove undercuts act as an intermediary between the spring ends and the crossbar. The flat end sections of the spring engage with these undercuts, mediating the interaction to prevent direct contact between the spring ends and the crossbar underside, thus avoiding digging in.
3Stability of the object's composition
If the spring ends are constrained in the groove undercuts, then lateral stability is improved, but the spring needs more space to deform vertically
Solution Approach 1:
The spring has different local properties: the central arched section is designed for vertical deformation with sufficient thickness, while the end sections are flat and constrained laterally by groove undercuts. This local differentiation allows lateral stability where needed while preserving vertical flexibility where required.
Solution Approach 2:
The spring is segmented into a deformation zone (central arched section) and constraint zones (flat end sections). The groove undercuts are positioned to constrain the ends laterally while leaving adequate space above the groove for the arched section to deform vertically during clipping operations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The new holder system allows for more stable and efficient assembly and disassembly of solar module components, reducing the need for additional support during installation and removal, while maintaining cost-effectiveness.
Implementation Method 1
The spring is more stable than a butterfly spring with the same thickness of the spring plate. In the new holder, the bridge-like spring is less sensitive to lateral deformation than a butterfly spring.
Implementation Method 2
In the holder of the component set according to the invention the spring was depressed by pressing on the center of the bow.
Data Source
AI summary
The invention relates to a set of components which contains crossbeams (23) intended to support rectangular solar modules and holders (24) for attaching the crossbeams (23) to crossbeams (3) which are mounted on a roof at an incline and the crossbeams (23) under cross at right angles, with the following features: - The holders (24) have a plate as their base body, on which two mutually parallel ribs (30, 31) are provided; - Both ribs (30, 31) are undercut to form a groove (30a, 31a); - The undercuts (4b) of the two ribs (30, 31) are oriented in the same way; - next to one of the ribs (30, 31), but not between the ribs (30, 31), a groove (33) is provided in the plate, which runs parallel to the ribs (30, 31); - The groove (33) is undercut on both sides; - A spring (34) is pushed into the groove (33), which is held by the undercuts in the groove (33) and projects beyond the outer edges of the groove (33); - The holder (24) has means (25) for connecting the holder (24) to a crossbar (23); - The transverse members (23) have a web (38) which connects two walls (39, 40) extending at right angles to the web (38); - A first of the two walls (39, 40) carries on its side facing away from the other, second wall (40) two parallel strips (41, 42) to the first wall (39) which under the two undercut ribs (30, 31) of the holder (24); - The profile shape and dimensions of the crossbar (23) and the holder (24) are matched to one another in such a way that the two strips (41, 42) can only be inserted into the undercut of the ribs (4b) by depressing the spring (34). , after which the spring (34) straightens up again and locks the crossbeam (23) in the holder (24); - the tongue (34) has a portion with the shape of a bridge arch, which protrudes beyond the outer edges of the groove (33); - Two broader, flat end sections (35) of the tongue (34) connect to the bridge-arc-shaped section of the tongue (34), with which the tongue (34) is held in the undercut groove (); - the end portions (35) of the spring (34) have clearance to slide in the groove (33) in the longitudinal direction thereof when the arched portion of the spring (34) is depressed (characteristic).