Thermoelectric Module Temperature Detection Delay
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Solution Overview
Problem
Conventional thermoelectric modules experience delays in temperature detection due to the distance between temperature-detecting elements and the thermoelectric elements, leading to inefficiencies in temperature control and potential oxidation or melting of components, especially in applications like refrigerators and air conditioners where air has slow temperature transmission.
Innovation Solution
A thermoelectric module design where a temperature-detecting element is attached to the inner surface of a support substrate, allowing for immediate detection of temperature abnormalities and improved reliability by reducing dew condensation and enhancing the durability of the module through closer integration of heat exchangers and the object being treated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the temperature-detecting element is placed away from the thermoelectric element, then the measurement range is expanded, but the temperature detection delay increases
Solution Approach 1:
The support substrate serves as a thermal intermediary that conducts heat from the thermoelectric element to the temperature-detecting element. By attaching the temperature-detecting element to the support substrate rather than placing it directly near the thermoelectric element, the system achieves both close thermal coupling for fast response and spatial separation for practical installation.
2Loss of time
If the temperature-detecting element is placed close to the thermoelectric element, then the temperature detection delay is reduced, but the structural complexity increases
Solution Approach 1:
The support substrate performs multiple functions simultaneously: it provides mechanical support for the thermoelectric element, conducts heat for temperature sensing, and serves as a mounting platform for the temperature-detecting element. By merging these functions into a single component, the overall structural complexity is reduced while achieving close thermal coupling.
3Measurement precision
If the temperature control response is delayed, then the temperature control precision is reduced, but the component oxidation and melting risk increases
Solution Approach 1:
The temperature-detecting element provides real-time temperature feedback to the control system by being thermally coupled to the support substrate. This enables rapid detection of temperature abnormalities and immediate adjustment of the thermoelectric element's operation, preventing both temperature control precision loss and component damage from overheating.
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 design enhances the durability and reliability of the thermoelectric module by reducing temperature detection delays and preventing oxidation or melting, ensuring accurate temperature control and improved performance in cooling applications.
Implementation Method 1
a thermoelectric element in which Peltier effect is utilized has been used as a thermoelectric element for cooling because by passing an electric current therethrough, one end generates heat and the other end absorbs heat
Implementation Method 2
a temperature-detecting element is attached to an inner surface of the support substrate, temperature abnormality in a thermoelectric-element part can be immediately detected
Data Source
Figure 1
Figure 2A~2B
Figure 2C~2D
AI summary
A thermoelectric module having an excellent durability is provide. The thermoelectric module comprises: a first support substrate having a first inner surface, a first outer surface and a plurality of first connecting electrodes formed on the first inner surface; a second support substrate having a second inner surface opposed to the first inner surface, a second outer surface and a plurality of second connecting electrodes formed on the second inner surface; a plurality of P-type thermoelectric elements and a plurality of N-type thermoelectric elements provided between the first inner surface and the second inner surface; a temperature-detecting element provided on the first inner surface.