Rotatable Lighting Device Cable Stress Reduction
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Solution Overview
Problem
Conventional lighting devices face issues with cable stress and wear due to the rotation of illuminant assemblies, leading to potential damage and reduced lifespan.
Innovation Solution
The implementation of a rotatable assembly with a sliding ring and elastic piece within the lighting device, which allows the cable to rotate freely and reduces stress, combined with a damping block and guide grooves to maintain the desired orientation and position of the illuminant assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the illuminant assembly is made rotatable to improve adaptability, then the versatility of the lighting device is improved, but cable stress and wear increase reducing reliability
Solution Approach 1:
A cable guide structure is introduced as an intermediary component between the rotatable illuminant assembly and the fixed cable supply. This guide structure channels and directs the cable movement, preventing random abrasion and concentrating wear at controlled points, thereby resolving the contradiction between rotatability and cable durability
Solution Approach 2:
The cable management system is designed to be dynamic rather than fixed, allowing the cable routing to adapt as the illuminant assembly rotates. This dynamic configuration reduces cable stress by accommodating movement naturally, maintaining reliability while preserving versatility
2Reliability
If the cable is allowed to rotate freely to reduce stress, then the durability of the cable is improved, but the position stability of the illuminant assembly deteriorates
Solution Approach 1:
The rotation system is segmented into independent functional zones: one section allows free cable rotation to reduce stress and improve durability, while another section incorporates positioning mechanisms (such as detents or friction elements) that stabilize the illuminant assembly at desired angles, thus resolving the contradiction between cable freedom and position stability
3Adaptability or versatility
If rotation mechanisms are added to enable movement, then the versatility of the lighting device is improved, but the device complexity increases
Solution Approach 1:
The complex positioning and cable management functions are extracted from the main illuminant assembly and implemented as separate, modular components. This extraction simplifies the overall structure by allowing each component to be optimized independently, reducing total device complexity while maintaining full rotation capability and versatility
Data Source
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AI summary
A lighting device is disclosed in the present disclosure. The lighting device includes a support assembly, an illuminant assembly and a switch assembly. The illuminant assembly is connected to the support assembly and capable of being rotated to the support assembly. When the illuminant assembly is rotated to a position at which an angle between the illuminant assembly and the support assembly is less than or equal to a first angle threshold, the switch assembly turns to an on-state. In this way, the lighting device has a function of a switch.