Rotating Lamp Tube End Cap With Nested Driver Housing
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Solution Overview
Problem
Rotatable LED illuminating devices often have complex structures requiring large spaces and unsatisfactory driver mounting positions, affecting luminous efficiency and increasing production costs.
Innovation Solution
A novel end cap design for lamp tubes featuring a mounting ring, rotating ring, and cover plate that allows for rotation and sealing, accommodating the driver while minimizing space and simplifying assembly, with meshing and guiding parts for precise adjustment and electrical connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If a lamp tube with an elliptical cross-section is used to accommodate the driver, then the accommodating space is enlarged, but the volume of the illuminating device increases and production costs increase
Solution Approach 1:
The end cap is divided into multiple functional components: a mounting ring for structural support, a rotating ring for rotation function, and a cover plate for sealing. The driving mechanism is segmented into a driving member with meshing parts and a driven member with corresponding meshing parts. This segmentation allows each component to perform its specific function efficiently without requiring an enlarged overall structure.
Solution Approach 2:
The rotating ring is nested within the mounting ring, and the driven member is nested within the rotating ring. The driving mechanism components are nested within the end cap structure. This nesting arrangement maximizes the use of internal space without increasing the external dimensions of the illuminating device.
2Volume of stationary object
If a lamp tube with an elliptical cross-section is used to accommodate the driver, then the accommodating space is enlarged, but the structure becomes more complex
Solution Approach 1:
The end cap is divided into multiple functional components: a mounting ring for structural support, a rotating ring for rotation function, and a cover plate for sealing. The driving mechanism is segmented into a driving member with meshing parts and a driven member with corresponding meshing parts. This segmentation allows each component to perform its specific function efficiently without requiring an enlarged overall structure.
Solution Approach 2:
The end cap structure serves multiple functions: it provides structural support through the mounting ring, enables rotation through the rotating ring and meshing mechanism, provides sealing through the cover plate, and accommodates the driver. By integrating multiple functions into a single compact structure, the design avoids the need for additional components that would increase structural complexity.
3Device complexity
If the driver is mounted in an unsatisfactory position, then the illuminating device can be simplified, but the luminous effect is greatly affected
Solution Approach 1:
The end cap incorporates a rotating ring with a driving mechanism that allows the lamp tube to rotate. This dynamic capability enables the light source to be positioned optimally during operation to achieve the best luminous effect, while the driver remains mounted in the convenient location within the end cap.
Data Source
AI summary
Various embodiments may relate to an end cap for a lamp tube of an illuminating device, including a mounting ring fixedly mounted to one end of the lamp tube by means of an assembled end, and a cover plate for closing the mounting ring at a free end. The end cap further includes a rotating ring mounted between the mounting ring and the cover plate at the free end, the cover plate rotatably closes the mounting ring by means of the rotating ring. Further various embodiments relate to an illuminating device adopting the end cap.