Laser Light Source Module Partitioning Grid Plates
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Solution Overview
Problem
Conventional thermal insulation materials used in laser light source modules are soft and difficult to mold accurately, leading to poor workability during assembly and reduced thermal insulation performance due to air convection, which increases cooling power consumption.
Innovation Solution
A laser light source module design featuring an inner cover with partitioning members that divide the space between the inner and outer covers into multiple sections, reducing air convection and improving thermal insulation while maintaining ease of assembly and manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a foam thermal insulation material is filled into the space between the component to be thermally shielded and the package, then thermal insulation performance is improved, but workability during product assembling deteriorates due to the soft and difficult-to-mold nature of the material
Solution Approach 1:
The patent changes the physical state of the thermal insulation material from a soft foam to a rigid hollow spherical structure. This parameter change transforms the material from difficult-to-mold to easy-to-position, while maintaining thermal insulation performance through the air-filled hollow spheres.
Solution Approach 2:
The patent uses a composite structure combining rigid spherical shells with hollow interiors filled with reflective material. This composite design provides both structural rigidity for easy handling and effective thermal insulation through the hollow air-filled spaces and reflective surfaces.
2Loss of energy
If a thermal insulation material that is soft and difficult to mold is used, then thermal insulation performance can be improved, but manufacturing precision deteriorates due to difficulty in arranging in particular positions with high accuracy
Solution Approach 1:
The patent transforms the thermal insulation material from a soft, formable foam to a rigid spherical structure with fixed geometry. This parameter change enables precise positioning and arrangement during assembly, as the rigid spheres can be accurately placed and maintained in specific positions.
Solution Approach 2:
The patent divides the thermal insulation function into multiple discrete hollow spherical elements rather than using a continuous foam material. Each sphere can be independently positioned and arranged with high precision, while collectively providing comprehensive thermal insulation coverage.
3Ease of manufacture
If a large air layer is generated between the package and the thermal shielding material, then ease of manufacture is improved due to easier molding and arrangement, but thermal insulation performance deteriorates due to convection of air
Solution Approach 1:
The patent converts the harmful effect of air convection into a beneficial thermal insulation mechanism by filling the hollow spheres with reflective material. The air layers are contained within the sealed hollow spheres, preventing convection, while the reflective surfaces redirect thermal radiation, turning potential heat transfer into insulation.
Solution Approach 2:
The patent applies different thermal control mechanisms at different locations: the hollow spheres with reflective material provide radiation reflection and convection prevention, while the spaces between spheres maintain thermal insulation through controlled air gaps. Each region optimizes its local thermal properties.
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 design enhances workability and thermal insulation performance, reducing the power required for cooling the laser light sources and preventing component damage during assembly.
Implementation Method 1
a large air layer is generated between the package and the thermal shielding material, resulting in lowered thermal insulation performance due to the convection of air
Implementation Method 2
the flow of heat from the environment is reduced by the thermal shielding material
Implementation Method 3
a waveguide chip that is held to a predetermined temperature by a Peltier element
Data Source
AI summary
In a laser light source module, a light source disposed on a base with a temperature adjusting element therebetween is covered by an inner cover, and is hermetically sealed by an outer cover. A top plate of the inner cover divides the inside of the outer cover into upper and lower sections and covers the light source from above. Side plates cover the side portions of the light source. Partitioning grid plates are provided in a space between the top plate and the outer cover, the partitioning grid plates dividing the space into multiple spaces.