Right-Angle Flag Contacts for Compact Motor Electrical Connections
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Solution Overview
Problem
Existing motorized screen devices require significant space for electrical connections, making motor installation and removal difficult and necessitating larger screen casings, which is aesthetically undesirable and inefficient in material usage.
Innovation Solution
A compact electrical connection system using flag-type contacts and partial connecting pieces that extend at right angles to wire ends, allowing for a sliding mechanical and electrical connection that does not require additional space, enabling simpler motor installation and removal without enlarging the screen casing or guides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional electrical connection systems are used with separate wiring, then reliable electrical connection is achieved, but the space required for connection increases and installation complexity increases
Solution Approach 1:
The patent combines the electrical connection function with the mechanical fixing function into a single integrated connector assembly. The male connecting piece on the motor housing and female connecting piece on the fixing body are positioned such that electrical contact is established during the mechanical sliding fixation process, eliminating the need for separate wiring and reducing connection space.
Solution Approach 2:
The connector assembly serves multiple functions simultaneously: it provides mechanical fixation through sliding movement, establishes electrical connection through contact pins and sockets, and enables easy installation and removal. This multi-functionality reduces the overall space required compared to separate dedicated components for each function.
2Ease of operation
If motor is fixed with sliding movement to fixing body, then ease of installation and removal is improved, but electrical connection space requirements increase
Solution Approach 1:
The electrical connection components (male and female connecting pieces) are integrated into the mechanical sliding fixation system. The contact pins and sockets are positioned so that electrical connection is automatically established when the motor is slid into place, and is automatically disconnected when the motor is removed, maintaining ease of operation without additional space.
3Area of stationary object
If larger screen casing is used to accommodate electrical connections, then connection space is sufficient, but material usage increases and aesthetic appeal decreases
Solution Approach 1:
By merging the electrical connection function with the existing mechanical fixing structure, the patent eliminates the need for additional space within the screen casing. The connector components utilize the same spatial envelope as the mechanical fixation system, avoiding the need for enlarged casings and reducing material consumption.
4Adaptability or versatility
If separate wiring connection is used instead of integrated connector, then electrical connection flexibility is improved, but installation complexity and time increase
Solution Approach 1:
The integrated connector combines electrical contact pins/sockets with mechanical fixation elements into a single assembly that is pre-wired and pre-assembled. This eliminates the need for separate wiring operations during installation, significantly reducing installation time while maintaining electrical connection flexibility through the detachable design.
Solution Approach 2:
The electrical wires are pre-connected to the contact pins and sockets during manufacturing, creating a pre-assembled connector unit. This preliminary action eliminates the need for time-consuming wiring operations during field installation, reducing installation time while preserving the flexibility of electrical connection through the modular design.
Data Source
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AI summary
This invention relates to a screen device comprising an upwardly and downwardly rollable screen, a motor (1) to drive the upward and downward rolling movement and a compactly installable electrical connection with a male (2) and a female connecting piece (6) for the electrical connection of a power supply cable (5) to the motor (1), wherein the contact pins (4) of the male connecting piece (2) extend substantially at right angles to the electrical wires (3) to which they are connected and/or wherein the contact sockets (8) of the female connecting piece (6) extend substantially at right angles to the electrical wires (7) to which they are connected.