LED Lighting Support With Friction Locking and Angle Adjustment
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Solution Overview
Problem
Conventional lighting devices using semiconductor light emitting devices face issues with secure fixing, temperature management, and ease of angle adjustment, leading to reduced effectiveness in maintaining illumination quality and longevity.
Innovation Solution
A lighting device with a support system that uses a bracket and holder with frictional locking mechanisms, allowing for easy assembly and angle adjustment without screws, and incorporates a reflector and case design for efficient heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional screw-based fixing is used, then the assembly is secure and stable, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The patent replaces the conventional screw-based mechanical fixing system with a friction-based locking mechanism. The holder includes a friction surface that contacts the rod to generate frictional force, eliminating the need for screws and holes. This substitution maintains fixing reliability while significantly simplifying the assembly process to a single insertion motion.
Solution Approach 2:
The friction-based locking mechanism is self-servicing in that it automatically maintains its grip through frictional force without requiring additional fastening components or complex assembly steps. The elastic component continuously applies pressure to maintain frictional contact, providing self-adjusting and self-maintaining fixation.
2Ease of operation
If friction-based locking is used, then the assembly is simple and quick, but the fixing strength may be insufficient
Solution Approach 1:
The patent employs a composite structure combining an elastic component (providing continuous pressure) with a friction surface (providing gripping force). This composite approach integrates multiple functional elements into a single integrated component that simultaneously provides both ease of assembly and sufficient fixing strength through the combination of elastic force and friction.
Solution Approach 2:
The friction surface is designed with a curved configuration that matches the rod's geometry, increasing the contact area between the holder and rod. This curved surface design enhances the frictional force distribution and improves fixing strength while maintaining the simplicity of the friction-based locking mechanism.
3Reliability
If the holder is tightly fixed to prevent rotation, then the fixing is secure, but the angle adjustment becomes difficult
Solution Approach 1:
The patent implements a dynamic fixing system where the friction-based locking mechanism allows for easy angle adjustment during installation by applying minimal force to overcome friction, then automatically secures the position when force is removed. The system transitions from a static tight-fixing state to a dynamic adjustable state, providing both security and adaptability.
4Power
If the board is exposed to LED heat, then the LED emission is efficient, but the board temperature rises excessively
Solution Approach 1:
The patent extracts the heat dissipation function from the board structure by introducing a dedicated heat dissipation plate positioned between the LED array and the board. This separate heat dissipation component captures and channels heat away from the board, allowing the LED emission to remain efficient while preventing excessive board temperature rise.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables stable and long-lasting assembly, effective heat dissipation, and easy angle adjustment, enhancing the lighting device's performance and safety while maintaining illumination quality.
Implementation Method 1
the holder is rotatable and lockable against the bracket by utilizing a frictional force to be generated between the first rib and the inner circumferential surface of the receiving hole
Data Source
AI summary
This aims to provide a support (10) comprising a bracket (7) attached to a predetermined structure, and a generally cylindrical holder (6) retained in the bracket (7). This bracket (7) has a receiving hole (112) for accommodating the holder (6). This holder (6) has a first rib (122) erected on a curved outer circumference, and an elastic portion (124) for giving the first rib (122) the degree of freedom for motions in the substantially radial direction. This also aims to provide a lighting unit (20) characterized by comprising a board (2), in which light emitting portions (23) having semiconductor light emitting devices are arrayed on the upper face side along the longitudinal direction, reflector members (3A and 3B) mounted on the side of the upper face of the board and having reflecting portions (34a and 34b) for covering the light emitting units and for reflecting the lights from the light emitting units, and a case member (4) disposed to support the board and the reflector members upward and downward.