Pressing Member Elastic Deformation for Phosphor Rod Heat Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing light source devices for projectors face issues with inconsistent pressing force on phosphor rods, leading to inadequate heat transfer and potential damage, affecting the intensity and reliability of the fluorescence output.
Innovation Solution
A light source device design featuring a light guide member with specific faces and a pressing member that elastically deforms to apply a consistent force, ensuring stable contact and heat transfer, comprising a first extension portion along the third axis and second extension portions along the first axis, coupled to the supporting member to urge the light guide member against the supporting surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only a part projecting from the support of the spring is elastically deformable, then the structure is simple, but the pressing force for the phosphor rod easily varies due to dimension errors
Solution Approach 1:
The pressing member is designed with differentiated elastic deformability across different regions. The first extension portion has low elastic deformability to maintain pressing force, while the second extension portions have high elastic deformability to absorb dimensional variations. This local quality differentiation resolves the contradiction by making specific parts serve specific functions.
Solution Approach 2:
The pressing member utilizes dynamic elastic deformation characteristics of different regions. The second extension portions dynamically absorb dimensional errors through elastic deformation, while the first extension portion maintains relatively static pressing force. This dynamic response to dimensional variations improves reliability without significantly increasing structural complexity.
2Strength
If the pressing force for the phosphor rod is smaller than a predetermined value, then the load on the phosphor rod is reduced, but heat of the phosphor rod is not sufficiently transmitted to the heat transfer member
Solution Approach 1:
The pressing member is designed to maintain pressing force within an optimal parameter range. By controlling the elastic deformation characteristics and dimensional tolerances of the pressing member, the pressing force is kept between the predetermined minimum value (for adequate heat transfer) and maximum value (to avoid excessive load). This parameter control resolves the contradiction between heat transfer efficiency and phosphor rod protection.
3Temperature
If the pressing force for the phosphor rod is larger than the predetermined value, then heat transfer is improved, but an excessively large load may be applied to the phosphor rod
Solution Approach 1:
The pressing member's elastic deformation characteristics are designed to limit maximum pressing force. The dimensional tolerances and material properties are selected to ensure that even when accommodating dimensional variations, the pressing force does not exceed the predetermined maximum value that would damage the phosphor rod. This parameter control prevents both insufficient and excessive pressing force.
4Reliability
If the pressing member has extension portions extending in directions closer to the respective axes than the third axis, then the pressing force distribution is improved, but the device complexity increases
Solution Approach 1:
The pressing member incorporates multiple extension portions with different elastic deformability characteristics at specific locations. The first extension portion contacts the third face with low elastic deformability for stable pressing force, while second extension portions extend along the first axis with high elastic deformability to improve force distribution. This localized structural differentiation improves reliability without proportionally increasing overall complexity.
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
This configuration ensures stable and efficient heat transfer, preventing temperature rise and excessive load on the light guide member, thereby maintaining desired fluorescence intensity and preventing damage, while providing a reliable and consistent light output.
Implementation Method 1
the pressing member has a first extension portion extending in a direction closer to a direction along the third axis than a direction along the first axis, and contacting the third face, a pair of second extension portions extending in a direction closer to a direction along the first axis than a direction along the third axis, and having one ends coupled to the first extension portion and the other ends fixed to the supporting member, and elastically deforms in a direction crossing a principal surface of the supporting surface to urge the third face
Implementation Method 2
the groove portion has a supporting surface facing the fourth face, and the pressing member has a first extension portion extending in a direction closer to a direction along the third axis than a direction along the first axis, and contacting the third face
Data Source
AI summary
A light source device of the present disclosure includes a light emitting element, a light guide member, a supporting member, and a pressing member. The pressing member has a first extension portion extending in a direction closer to a direction along a third axis than a direction along a first axis, and contacting a third face, a pair of second extension portions extending in a direction closer to a direction along the first axis than a direction along the third axis, and having one ends coupled to the first extension portion and the other ends fixed to the supporting member, and elastically deforms in a direction crossing a principal surface of the supporting surface to urge the third face.