Vehicle Lamp Optical Fiber Fixing Unit Tension Control
Solution Overview
Problem
Side emitting optical fibers in vehicle lamps are difficult to fix stably, leading to potential prolongation or separation during assembly or vehicle vibration, which deteriorates the product value of the lamp.
Innovation Solution
A fixing unit comprising a bracket and a fixing member is used to tension and secure the side emitting optical fiber, with the fixing member being detachably coupled to the bracket to apply and adjust tension, ensuring the fiber is securely attached to the bezel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional fixing structure for end emitting optical fiber is used to fix side emitting optical fiber, then the fixing structure can be simply applied, but the optical fiber may be prolonged or separated when the vehicle is assembled or vibrates
Solution Approach 1:
The fixing structure is divided into multiple components: a fixing member with a fixing hole, a bracket with a clamping piece, and a fastening member. This segmentation allows each component to perform a specific function - the fixing member holds the optical fiber, the bracket provides mounting support, and the fastening member secures the assembly to the bezel, collectively achieving reliable fixation of the side emitting optical fiber
Solution Approach 2:
The optical fiber is first inserted through the fixing hole of the fixing member before the bracket and fastening member are assembled. This preliminary positioning ensures the optical fiber is correctly placed and tensioned before final fixation, preventing misalignment or loosening during subsequent assembly or vehicle vibration
2Adaptability or versatility
If side emitting optical fiber is used to enhance design freedom and lighting function, then the lighting performance is improved, but the optical fiber is difficult to fix stably due to its exposed side surface
Solution Approach 1:
The fixing member, bracket, and fastening member are combined into an integrated fixing assembly that mounts to the bezel. This merged structure provides comprehensive fixation - the fixing member captures the optical fiber, the bracket attaches to the bezel, and the fastening member unifies the assembly - achieving stable fixation without requiring multiple separate complex components
Data Source
AI summary
The lamp for a vehicle includes a lamp housing, a light source part housed at the lamp housing and that irradiates light, a bezel installed in the lamp housing, an optical fiber, one end of which is fixed to one side of the bezel and an opposite end of which is assembled on an opposite side of the bezel, connected to the light source part, and that outputs light irradiated from the light source part, and an fixing unit, in which the opposite end of the optical fiber is assembled on the opposite side of the bezel, and the fixing unit includes a bracket fixed to the bezel, and an fixing member, to which the opposite end of the optical fiber is fixed, and assembled in the bracket.