Light-Emitting Device Module Thermal Control Surface
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Light-emitting devices used in atomic oscillators face challenges in maintaining frequency accuracy due to temperature fluctuations, which affect the frequency difference between two kinds of light emitted, leading to instability in the oscillator's operation.
Innovation Solution
A light-emitting device module with a temperature control surface that thermally connects the electrode and terminal via wires, ensuring the light-emitting device operates at a consistent temperature, thereby maintaining frequency accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the light-emitting device is electrically connected by wire not via the temperature control surface, then electrical connection is achieved, but temperature fluctuation occurs due to outdoor temperature affecting the device
Solution Approach 1:
The temperature control surface acts as an intermediary thermal path between the wire and the light-emitting device. Instead of allowing direct thermal coupling through air or mounting structures, the wire is thermally connected to the temperature control surface, which then conducts heat to or from the light-emitting device as needed, mediating the thermal interaction to maintain stable operating temperature.
Solution Approach 2:
The temperature control surface maintains a uniform temperature distribution across its area, creating a thermal equipotential zone. By connecting the wire to this equipotential surface, the system ensures that temperature gradients do not cause unwanted heat flow to the light-emitting device, stabilizing its operating temperature against outdoor temperature variations.
2Temperature
If the wire is thermally connected to the temperature control surface, then temperature stability is improved, but heat may be radiated or absorbed through the wire and terminal
Solution Approach 1:
The temperature control surface serves as a thermal intermediary that manages heat flow between the wire and the external environment. By controlling the thermal conductivity and temperature of this surface, the system can minimize unwanted heat radiation or absorption through the wire while maintaining the necessary thermal connection for temperature stabilization.
Solution Approach 2:
The system dynamically adjusts the temperature of the temperature control surface to optimize thermal management. By changing the temperature parameter of the control surface, the system can reduce thermal gradients that would otherwise cause heat loss or gain through the wire, thereby minimizing energy loss while maintaining temperature stability.
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 effectively suppresses temperature fluctuations in the light-emitting device, ensuring high frequency accuracy and stable operation of the atomic oscillator.
Implementation Method 1
The wire is thermally connected to the other portion of the temperature control surface... the first electrode and the first terminal are electrically connected via the temperature control surface controlled to a desired temperature
Data Source
AI summary
A light-emitting device module includes a temperature variable device including a temperature control surface subjected to temperature control, a light-emitting device including a first electrode and mounted on a portion of the temperature control surface, a first terminal for supplying electric power to the first electrode, and a wire that causes the first terminal and the first electrode to conduct. The wire is thermally connected to the other portion of the temperature control surface.