Pressing Member Fixes Solid-State Light Source
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing light source devices with solid-state light sources, such as LEDs, are complex to manufacture and maintain due to the need for laser spot welding, which complicates installation and replacement.
Innovation Solution
A light source device with a solid-state light source that uses a pressing member with a pressing portion to easily mount and remove the light source, allowing for improved maintenance and miniaturization by ensuring reliable light transmission and dispersing load through a trapezoidal projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If laser spot welding is used to fix the LED to the radiating element, then the LED can be securely fixed, but the installation work becomes complicated and manufacturing cost increases
Solution Approach 1:
The patent replaces the laser spot welding process (thermal/chemical joining) with a mechanical pressing system. A pressing member with a pressing portion is inserted into a pressing hole to apply mechanical pressure, fixing the solid-state light source to the radiating element through friction and normal force rather than melting and bonding materials.
Solution Approach 2:
The pressing member is designed as a separate, removable component that can be inserted and removed independently. The pressing hole is specifically shaped to receive the pressing member, allowing the fixing mechanism to be segmented into distinct parts that simplify assembly and disassembly processes.
2Strength
If laser spot welding is used to fix the LED, then secure fixation is achieved, but replacement of the LED becomes difficult
Solution Approach 1:
The pressing member is designed to be dynamically insertable and removable. During normal operation, it provides stable fixation. During maintenance, it can be easily removed from the pressing hole, allowing the solid-state light source to be replaced without permanent bonding. This dynamic design enables the system to transition between fixed and replaceable states.
Solution Approach 2:
The pressing member acts as an intermediary between the solid-state light source and the radiating element. It provides the fixing function during operation but can be removed to enable replacement, serving as a temporary mediator that facilitates both secure mounting and easy maintenance.
3Strength
If a pressing member is provided to cover the solid-state light source, then fixation is achieved, but the light path may be blocked
Solution Approach 1:
The pressing member is designed with non-uniform structure: the pressing portion has a specific shape that provides fixation, while the opening portion is transparent or open to allow light passage. This local differentiation of properties enables the same component to simultaneously provide mechanical fixation and optical transparency.
Solution Approach 2:
The opening portion of the pressing member serves as an optical intermediary that allows light to pass through from the solid-state light source to the external environment. It mediates between the need for physical coverage (for fixation and protection) and the need for optical transparency (for light transmission).
Data Source
AI summary
Alight source device includes a solid-state light source emitting light, a base member having an arrangement surface (front portion) on which the solid-state light source is arranged, and a pressing member having a pressing portion (projection) provided on the base member to fix the solid-state light source through pressing of the solid-state light source toward the arrangement surface (front portion). Through this, the solid-state light source can be easily arranged on the base member as compared with a case where the solid-state light source is fixed by welding.