Rotational Hinge for Linear LED Illumination with Integrated Cable Routing
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Solution Overview
Problem
Conventional linear lighting fixtures face design challenges in routing power cables through the rotational axis while allowing for independent adjustment of fixtures, leading to strain between adjacent fixtures and requiring special tools or locking mechanisms for securing positions.
Innovation Solution
A rotational hinge mechanism that positions the power cable along the rotational axis, using a swing arm and hinge element with a position holding gear, allowing 180-degree rotation without the need for special tools or additional locking mechanisms, enabling power and rotation through the same axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the power cable is routed through the rotational axis of the hinge, then the distance between connection points of adjacent fixtures remains constant and strain is reduced, but the hinge design becomes more complex as it must accommodate both rotation and power transmission through the same axis
Solution Approach 1:
The patent combines the power cable routing with the rotational axis of the hinge, allowing both power transmission and rotation to occur through the same central axis. This merging of functions eliminates the need for separate cable routing paths and maintains constant distance between connection points while reducing strain on adjacent fixtures.
Solution Approach 2:
The rotational hinge is designed to perform multiple functions simultaneously: it allows mechanical rotation of the fixture while also serving as a conduit for power cable transmission. This multi-functionality is achieved by integrating the cable exit at the rotational axis, enabling the hinge to handle both motion and electrical connection through a single structural element.
2Device complexity
If conventional hinges are used that allow rotation but route power cables off the central axis, then the hinge design is simpler, but strain is produced between adjacent fixtures that are adjusted to different angles
Solution Approach 1:
The patent combines the power cable routing with the rotational axis of the hinge, allowing both power transmission and rotation to occur through the same central axis. This merging of functions eliminates the need for separate cable routing paths and maintains constant distance between connection points while reducing strain on adjacent fixtures.
3Ease of operation
If special tools or independent locking mechanisms are used to secure the light fixture in place, then the adjustment and securing function is achieved, but the operation becomes cumbersome and time consuming
Solution Approach 1:
The hinge incorporates a self-latching mechanism that automatically secures the fixture in place without requiring external tools or separate locking components. The design includes a latch arm that engages with a latch surface on the swing arm, creating a self-contained securing system that operates as part of the hinge assembly itself.
Solution Approach 2:
The patent removes the need for independent locking mechanisms and special tools by integrating the securing function directly into the hinge structure. The latch arm and latch surface are built-in elements that work together to secure the fixture, eliminating the need for external locking components.
Data Source
AI summary
A linear multi-color LED illumination device is described herein as including a rotational hinge, which allows a power cable of the illumination device to enter and exit through a rotational axis of the hinge, and which does not require special tools or an independent locking mechanism to secure in place.