Roller Blind Battery Tray Lid for Easier Battery Replacement

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Solution Overview

Problem

Commonly available battery-powered motorized roller blinds are inconvenient to maintain, especially when batteries need to be changed, as they may be installed in hard-to-reach locations, and frequent battery changes can lead to component failure.

Innovation Solution

A motorized roller blind with a battery compartment featuring a closable lid that pivots vertically, a rigidly connected battery tray with a horizontal surface for secure battery placement, and a snap-fit closing device for easy access and reduced wear on electrical connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the battery compartment is positioned in a fixed location on the roller blind, then the motorized roller blind can be installed in hard-to-reach locations, but battery replacement becomes inconvenient and requires ladders

Engineering Contradiction:

Improveinstallation stabilityVSAvoidbattery replacement convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The battery compartment is made movable relative to the headrail through a sliding mechanism with guide rails and cam locks. This allows the compartment to be dynamically repositioned between a stored position during normal operation and an accessible position for battery replacement, resolving the contradiction between fixed installation stability and maintenance accessibility.

Inventive Principle:

Principle #15Dynamics

2Device complexity

If a traditional hinged lid is used for the battery compartment, then the structure is simple, but repeated opening and closing causes wear and electrical connection failure

Engineering Contradiction:

Improvecompartment structure simplicityVSAvoidelectrical connection durability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The traditional hinged lid mechanism is replaced with a snap-fit lid system that uses elastic deformation of the lid material itself as the closing mechanism. This eliminates mechanical hinges and associated wear, while the elastic memory of the material provides reliable repeated opening and closing without electrical connection failure.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Ease of manufacture

If the battery tray is loosely connected to the lid, then assembly is easier, but the battery tray may detach causing component failure

Engineering Contradiction:

Improveassembly simplicityVSAvoidbattery holding security

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The battery tray is integrally formed with the lid as a single piece, eliminating the separate connection interface that could fail. This merging of components ensures the battery tray cannot detach while maintaining ease of manufacture through integral forming processes.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP3728781B1Motorized roller blind with battery compartment

Publication Date: 2023.11.15 INTER IKEA SYST

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AI summary

The present invention relates to a motorized roller blind, said motorized roller blind comprising: a headrail and a motorized roller, wherein said headrail comprises a battery compartment for holding a battery configured to drive said motorized roller, wherein said battery compartment comprises a battery space, a closable lid movable between a closed position in which said battery space is closed from the surroundings and an open position in which said battery space is opened to the surroundings, and a battery tray arranged to hold a battery, wherein said battery tray is rigidly connected to said closable lid, thus providing easy access to the battery when said lid is in its open position, wherein said battery tray comprises a substantially horizontal surface (106) arranged to support a battery.