Hinged Screen Box Power Coupling for Automatic Motor Connection
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Solution Overview
Problem
Existing screen devices with integrated solar panels and power supplies on hinged front panels face challenges in creating a simple and reliable electrical connection between the power supply and motor, due to limited space and tolerances in large screen boxes, making installation and maintenance cumbersome.
Innovation Solution
A screen device with an electric coupling featuring a contact surface on the box base and a spring contact on the front panel, which separate in the open state and automatically connect in the closed state, allowing for easy installation and maintenance, and compensating for tolerances through precise placement and shielding elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a solar panel and power supply are provided on a hinged front panel, then the screen box can be made more compact and aesthetic, but creating an electrical connection between the power supply and motor becomes difficult and cumbersome
Solution Approach 1:
The electrical connection system is segmented into separate components: a contact surface fixed on the box base and a spring contact mounted on the hinged front panel. This segmentation allows the front panel to be hinged for access while maintaining electrical connectivity through the spring contact's ability to engage/disengage from the contact surface.
Solution Approach 2:
The spring contact is designed to be movable relative to the contact surface, allowing it to dynamically engage with the contact surface when the front panel is closed and disengage when opened. This dynamic mechanism enables automatic electrical connection without requiring manual wiring operations during installation or maintenance.
2Ease of repair
If the front panel is hinged to allow access to the screen box, then maintenance and installation become easier, but the electrical connection must be created before closing the panel which is awkward and time-consuming
Solution Approach 1:
The contact surface is pre-installed on the box base and the spring contact is pre-mounted on the front panel during manufacturing. This preliminary action eliminates the need for on-site electrical connection creation, as the connections are already prepared and will automatically engage when the panel is closed.
Solution Approach 2:
The spring contact automatically engages with the contact surface when the front panel is closed, creating the electrical connection without human intervention. The system serves itself by using the mechanical closing action of the panel to simultaneously establish both the physical enclosure and the electrical connection.
3Volume of moving object
If the screen box is made compact with integrated power supply and solar panel, then aesthetics improve and space is optimized, but tolerances in large screen boxes make precise electrical connection difficult
Solution Approach 1:
The spring contact is designed with elastic properties that allow it to accommodate dimensional variations and tolerances in the screen box structure. The spring mechanism can compress and extend to maintain reliable electrical contact despite variations in panel alignment or box dimensions.
Solution Approach 2:
The spring contact acts as an intermediary element between the power supply and motor connections, providing a tolerant interface that can absorb manufacturing variations. The elastic spring mechanism mediates the connection, allowing for slight misalignments while maintaining reliable electrical contact.
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 enables a simple, reliable, and automatic electrical connection that simplifies installation and maintenance, ensuring a secure power supply to the motor without hindering the screen's operation, even in large screen boxes with tolerances.
Implementation Method 1
a spring contact, which is provided either on the front panel or on the box base
Implementation Method 2
a solar panel, which is provided on the front panel, for generating electrical energy
Data Source
Figure 1
Figure 2~3
Figure 4~6
AI summary
The present invention relates to a screen device (1), comprising: - a screen box (4), in which a screen roller is mounted rotatably by means of a motor, and comprising a front panel (6), which is hinged to a box base (5), between an open state and a closed state; - a solar panel (8), on the front panel (6), for generating electrical energy; - a power supply (9) on the front panel (6), for storing the electrical energy and delivering this electrical energy to the motor; and - an electric coupling, which comprises a contact surface (11) and a spring contact (12), which in the closed state make contact over a contact area, to couple an electrical connection between the power supply (9) and the motor, and in the open state are positioned separately from each other to break the electrical connection.