Lever Arrangement Power Supply for Door Wings
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Solution Overview
Problem
Existing electrical devices for automatic opening, closing, and determining the wing of a door or window, such as door closers, require complex and visually striking door transition cables for power supply, which increase assembly effort and expose the system to potential damage.
Innovation Solution
An electrical device with a lever arrangement that includes at least one electrical component assigned to the wing, allowing for a more discreet and secure power supply through a lever arrangement between the drive and the frame or wing, using various means such as cables, spiral cables, flex cables, and grinding contacts for efficient electricity transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If door transition cables are used for power supply, then electrical components can be powered, but the connection becomes visually conspicuous and vulnerable to deliberate damage
Solution Approach 1:
The patent extracts the power supply function from the mechanical lever arrangement and implements it through a separate electrical connection system. The electrical connection is integrated into the door frame structure rather than using external visible cables, thereby removing the harmful visual conspicuousness while maintaining the power supply function.
Solution Approach 2:
The patent introduces an intermediary electrical connection system that mediates between the power source and electrical components. This intermediary system is integrated into the door frame and lever arrangement, providing protected power transmission without requiring visible external cables that would be susceptible to deliberate damage.
2Reliability
If door transition cables are used for power supply, then electrical components can be powered, but assembly effort increases due to cable installation and machining
Solution Approach 1:
The patent merges the power supply connection with the existing mechanical lever arrangement and door frame structure. The electrical connection is integrated into the structural components rather than being a separate assembly step, thereby maintaining power supply functionality while reducing overall assembly effort.
Solution Approach 2:
The patent creates multi-functional structural components that serve both mechanical and electrical functions. The lever arrangement and door frame elements are designed to simultaneously transmit mechanical force and conduct electrical power, eliminating the need for separate cable installation and machining operations.
3Object-affected harmful factors
If the lever arrangement is used for power transmission, then the power connection becomes visually less conspicuous and more protected, but the device complexity increases
Solution Approach 1:
The patent segments the electrical connection into discrete integrated elements within the lever arrangement and door frame. Rather than requiring a complex integrated system, the electrical connection is divided into manageable segments that are incorporated into existing structural components, thereby reducing overall device complexity while achieving visual concealment and protection.
Data Source
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AI summary
An electrical device for automatically opening, closing, and/or holding a door or window leaf, in particular a door closer, comprises a drive unit associated with the leaf or frame and a lever assembly located between the drive unit and the frame or leaf for power transmission. The lever assembly for supplying power to at least one electrical component of the device associated with the leaf includes power transmission means.