Two-Orientation Motor Assembly for Architectural Opening Covers

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Solution Overview

Problem

Existing architectural opening covering systems require separate motor assemblies for different orientations, increasing manufacturing complexity and cost, and lack flexibility in user interface placement.

Innovation Solution

A modular motor assembly with a housing that can be installed in either orientation, featuring a master motor and slave motor positioned for consistent alignment, and a user interface that remains accessible regardless of installation, allowing standardization of components and reducing part requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate motor assemblies are used for different orientations, then the system can be installed in various orientations, but the manufacturing complexity and cost increase

Engineering Contradiction:
Improveinstallation orientation flexibilityVSAvoidmanufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The motor assembly is designed with symmetric housing and dual motors positioned at the first end, enabling the same assembly to be installed in either orientation (first orientation with first end facing inwardly, or second orientation with second end facing inwardly). This universal design allows a single motor assembly to perform the function of driving the covering in both orientations, eliminating the need for separate motor assemblies for different orientations.

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

2Adaptability or versatility

If separate motor assemblies are used for different orientations, then the system can be installed in various orientations, but the cost increases

Engineering Contradiction:
Improveinstallation orientation flexibilityVSAvoidnumber of parts
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The motor assembly uses the same housing, motors, and control circuitry regardless of installation orientation. The symmetric design with dual motors at the first end allows the assembly to be reused in both orientations, reducing the total number of parts needed and lowering manufacturing costs while maintaining orientation flexibility.

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

3Reliability

If motors are positioned for optimal performance, then the drive mechanism works efficiently, but the user interface may not be accessible in all orientations

Engineering Contradiction:
Improvedrive mechanism efficiencyVSAvoiduser interface accessibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The control circuitry and user interface are integrated into the housing in a position that remains accessible regardless of whether the motor assembly is installed in the first or second orientation. The symmetric design ensures that the interface features (display, buttons, connectors) are always positioned on the side facing the architectural structure, maintaining ease of operation in both orientations while preserving drive mechanism efficiency.

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

Data Source

PatentEP4405556B1Motor assembly for an architectural opening covering system
Publication Date: 2025.10.15 HUNTER DOUGLAS IND BV
  • EP4405556B1 patent drawingFigure 1
  • EP4405556B1 patent drawingFigure 2(a)
  • EP4405556B1 patent drawingFigure 2(b)

AI summary

A motor assembly for an architectural opening covering system, including a master motor, a slave motor, power storage for storing electrical energy, a control circuitry, and a housing which houses the master motor, the slave motor, the power storage and the control circuitry. The master motor and the slave motor are arranged at the first end of the housing side-by-side in a lateral direction perpendicular to the longitudinal direction, the master drive axis and the slave drive axis being parallel to the longitudinal direction. The housing is configured to be supported in the one end of a rail in a first orientation with the first end of the housing and to be supported in the other end of a rail in a second orientation, opposite to the first orientation.