Roller Blind Power Supply Unit Spatial Configuration

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Solution Overview

Problem

Conventional roller shutter structures with autonomous power supplies are bulky, compromising their aesthetic appeal due to the increased volume of the power supply unit attached to the front wall.

Innovation Solution

The power supply unit is reconfigured by positioning the accumulator battery remotely from the photovoltaic panel, allowing the battery to be housed inside the longitudinal box while the photovoltaic panel extends across a transverse opening, maintaining a standard box size and aesthetic integrity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If the self-contained power supply unit is attached to the front wall of the longitudinal housing, then the roller shutter can be powered autonomously without external electrical supply, but the volume of the housing increases and aesthetic characteristics deteriorate

Engineering Contradiction:
Improveautonomous power supplyVSAvoidhousing volume
Core Design Contradiction:
Extent of automationVSVolume of stationary object

Solution Approach 1:

The patent repositions the battery from a conventional location to an upper corner space of the housing, utilizing three-dimensional space more efficiently. The photovoltaic panel is integrated into the front wall surface, and the battery is placed in the vertical upper corner region, transforming the power supply unit from a protruding external attachment to a compact integrated configuration that utilizes unused spatial volumes within the existing housing envelope.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Extent of automation

If the self-contained power supply unit is attached to the front wall of the longitudinal housing, then the roller shutter can be powered autonomously without external electrical supply, but the aesthetic appearance of the roller shutter structure is compromised

Engineering Contradiction:
Improveautonomous power supplyVSAvoidaesthetic appearance
Core Design Contradiction:
Extent of automationVSShape

Solution Approach 1:

The patent embeds the power supply components within the existing housing structure. The photovoltaic panel is integrated into the front wall, and the battery is nested in the upper corner space, making the power supply unit appear as an intrinsic part of the housing rather than an external attachment. This nesting approach maintains the standard housing dimensions and preserves aesthetic appearance.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Volume of moving object

If the battery is positioned close to the photovoltaic panel, then the power supply unit is compact, but the battery interferes with the winding shaft operation and requires additional fixing devices

Engineering Contradiction:
Improvepower supply unit volumeVSAvoidwinding shaft operation
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The patent positions the battery in the upper corner space of the housing, utilizing vertical three-dimensional space that is otherwise unused. This spatial reconfiguration places the battery far from the winding shaft's operational path, eliminating interference while maintaining a compact overall housing volume. The battery is secured using simple retaining tabs that engage with the housing structure without requiring additional fixing devices.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

This configuration reduces the bulkiness of the power supply unit, ensuring the roller shutter structure maintains its standard size and aesthetic appeal while providing autonomous power, allowing for easy assembly and installation without additional fixing devices.

Implementation Method 1

a photovoltaic panel affixed to its front wall and a battery pack installed behind the photovoltaic panel, inside the power supply unit. The battery pack and the photovoltaic panel are connected via an electronic circuit board

Methodology Applied
Scientific EffectPhotovoltaic effect: Photovoltaic Effect

Data Source

PatentEP3957817B1Roller blind structure and assembly method thereof
Publication Date: 2023.02.08 FRANCIAFLEX
  • EP3957817B1 patent drawingFigure 1~2
  • EP3957817B1 patent drawingFigure 3
  • EP3957817B1 patent drawingFigure 4

AI summary

The invention relates to a roller shutter structure comprising: a box having a front wall, a winding shaft (28) and a geared motor; a self-contained power supply unit (44) having a photovoltaic panel (50) and a battery of accumulators (52) behind said photovoltaic panel (50), said power supply unit (44) being installed on said front wall of said box, while said battery of accumulators (52) is able to be electrically coupled to said geared motor.The said battery of accumulators (52) is located in a remote position outside the space extending in front of the rear face of said photovoltaic panel (50), and said front wall has a transverse opening (16), so as to be able to install said self-contained power supply unit (44) by passing through said transverse opening (16) so that said battery of accumulators (52) is kept away from said winding shaft (28), while said photovoltaic panel (50) extends across said transverse opening (16).