Connection elements for panels

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Solution Overview

Problem

Existing connection systems for modular structures, such as refrigerating cells, are costly and labor-intensive due to the need for precise shaping and sizing of panels, leading to high production costs and thermal bridging issues.

Innovation Solution

A connection element with a box-shaped main body and L-shaped engagement seats, made from materials like PVC, that allows for a form-fitting connection between panels with reduced thermal conductivity and simplified assembly, using locking elements and fixing means to secure panels without complex profiles or hooks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If panels are shaped with stepped profiles and form-fitting connections, then connection solidity is improved, but production cost increases and thermal bridging occurs

Engineering Contradiction:
Improveconnection solidityVSAvoidproduction cost
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The connection system is divided into modular components: standardized panels with simple edges, separate connection elements (angular elements and laminar elements), and fixing means. This segmentation allows panels to be produced with simple, standardized edges rather than complex stepped profiles, reducing manufacturing complexity and cost while maintaining connection solidity through the specialized connection elements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Laminar connection elements are introduced as intermediaries between panels to achieve form-fitting connections. These laminar elements provide the necessary geometric complexity for solid connections without requiring the panels themselves to have complex stepped profiles, thereby simplifying panel manufacturing while maintaining connection strength.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If panels are precisely shaped and sized for form-fitting connection, then connection stability is improved, but manufacturing precision requirements and costs increase

Engineering Contradiction:
Improveconnection stabilityVSAvoidpanel sizing precision
Core Design Contradiction:
Stability of the object's compositionVSManufacturing precision

Solution Approach 1:

The connection function is segmented from the panels and transferred to dedicated connection elements. Panels are produced with simple, standardized edges requiring minimal precision, while the connection elements (angular and laminar) are designed to provide the precise geometric relationships needed for stable connections, separating the precision requirements from the main panel production.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system allows panels to be produced with standardized dimensions and simple edge profiles, changing the geometric parameters of panels from complex stepped profiles to simple rectangular edges. The precision and complexity are then embodied in the connection elements themselves, which are designed with the necessary geometric features for stable connections.

Inventive Principle:
Principle #35Parameter changes

3Stability of the object's composition

If engaging elements and seats are provided on panels for perpendicular connection, then assembly stability is improved, but assembly complexity and time increase

Engineering Contradiction:
Improveassembly stabilityVSAvoidassembly complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The connection system is segmented into standardized panels with simple edges, separate angular elements for perpendicular connections, and laminar elements for linear connections. This segmentation allows panels to maintain simple geometry while providing stable perpendicular connections through the specialized angular elements, reducing overall assembly complexity compared to providing all connection features directly on panels.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection elements are designed to provide multiple functions: angular elements handle perpendicular panel connections, laminar elements handle linear panel connections, and both work with standardized panel edges. This multi-functionality reduces the need for different panel configurations and simplifies the overall assembly process while maintaining stability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Stability of the object's composition

If panels are connected with laminar joint elements, then connection stability is improved, but thermal insulation performance deteriorates due to thermal bridges

Engineering Contradiction:
Improveconnection stabilityVSAvoidthermal insulation performance
Core Design Contradiction:
Stability of the object's compositionVSLoss of energy

Solution Approach 1:

The connection elements are designed with differentiated properties: angular elements provide mechanical stability for perpendicular connections while minimizing thermal bridge effects through their geometry and material selection. The laminar elements provide form-fitting connections with reduced thermal conductivity. This local optimization of connection elements allows stable connections while minimizing thermal bridge effects at critical joint locations.

Inventive Principle:
Principle #3Local quality

5Ease of manufacture

If panels are produced with standardized dimensions and simple edges, then manufacturing cost and ease of production are improved, but connection stability may be compromised

Engineering Contradiction:
Improvepanel production easeVSAvoidconnection stability
Core Design Contradiction:
Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The connection function is segmented from the panels and embodied in separate connection elements. Panels are produced with simple, standardized edges requiring minimal manufacturing complexity, while the angular and laminar connection elements provide the necessary geometric features for stable connections. This segmentation allows panels to be manufactured easily and economically while maintaining connection stability through the specialized connection elements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Laminar connection elements serve as intermediaries between panels with simple edges, providing the necessary form-fitting geometry for stable connections without requiring the panels themselves to have complex profiles. This intermediary approach allows panels to be manufactured with simple, standardized edges while maintaining connection stability through the laminar elements.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 solution reduces production costs, simplifies assembly, enhances thermal insulation, and increases mechanical strength by minimizing thermal bridges and allowing rapid, stable connection of panels, thus lowering overall costs and improving assembly efficiency.

Implementation Method 1

The connection element according to the invention comprises a main body 2 which is box-shaped... made from materials like PVC... enhanced thermal insulation... minimizing thermal bridges

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentEP3299754B1Connection elements for panels
Publication Date: 2021.03.24 MPM CORP
  • EP3299754B1 patent drawingFigure 1~2
  • EP3299754B1 patent drawingFigure 3~5
  • EP3299754B1 patent drawingFigure 6~9

AI summary

A connection element (1) for connecting at least two panels (101) to each other, having a substantially rectangular profile, of a modular structure (100), preferably of insulated or refrigerating cells, the connection element (1) comprising: • a main body (2) with a prevalent longitudinal extent along an axis (X'), the main body (2) being provided with a first wall and a second wall (5, 8) which extend longitudinally along the axis (X) and which are arranged perpendicularly to each other, further comprising: • a first projection (6) which is arranged perpendicularly to the first wall (5) and which is connected thereto at a first corner (25) so as to delimit therewith an L-shaped engagement seat (3) which extends longitudinally along the axis (X) and which has dimensions so as to receive and accommodate an end portion (102b) of a first panel (101a), and • a second projection (7) which is arranged perpendicularly to the second wall (8) and which is connected thereto at a second corner (35) so as to delimit therewith a second L-shaped engagement seat (4) which extends longitudinally along the axis (X) and which has dimensions so as to receive and accommodate an end portion (102b) of a second panel (101b).