Multilayer Capacitor With Thermoelectric Temperature Stabilization
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Solution Overview
Problem
Multilayer ceramic capacitors experience rapid surface temperature increases due to increased leakage current when voltage is applied, necessitating a solution to maintain a constant internal temperature for improved reliability in high-temperature environments.
Innovation Solution
Incorporation of thermoelectric elements within the multilayer electronic component, comprising N-type and P-type semiconductor elements connected by connection electrodes, to regulate temperature through the Peltier effect, maintaining a constant internal temperature by absorbing or dissipating heat as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If voltage is applied to the multilayer ceramic capacitor, then the capacitor can perform its electrical function, but the surface temperature rapidly increases due to increased leakage current
Solution Approach 1:
A thermoelectric element is introduced as an intermediary component between the heat-generating capacitor body and the external environment. This element actively manages heat transfer, using electrical energy to pump heat away from the capacitor body, thereby maintaining a stable internal temperature despite voltage application and leakage current generation.
Solution Approach 2:
The patent changes the thermal parameter of the capacitor system by introducing active thermal management. The thermoelectric element dynamically adjusts the internal temperature by converting electrical energy into directed heat flow, transforming the passive thermal state into an actively controlled parameter that remains stable during operation.
2Temperature
If the surface temperature increases due to leakage current, then electrical operation continues, but the internal temperature stability deteriorates
Solution Approach 1:
The patent converts the harmful effect of leakage current into a beneficial outcome. Instead of allowing leakage current to merely generate unwanted heat that degrades performance, the thermoelectric element utilizes electrical energy (including from leakage current) to actively pump heat away, transforming thermal harm into useful cooling action that stabilizes internal temperature.
3Reliability
If thermoelectric elements are added to maintain constant internal temperature, then reliability in high-temperature environments improves, but device complexity increases
Solution Approach 1:
The thermoelectric element is integrated directly into the capacitor structure, merging the electrical component with the thermal management function. This combination eliminates the need for separate cooling systems or thermal management modules, achieving reliable high-temperature operation while minimizing additional structural complexity through functional integration.
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 maintains a constant internal temperature, enhancing the reliability of the multilayer electronic component in high-temperature environments by preventing surface temperature spikes and protecting against external stress and oxidation.
Implementation Method 1
regulate temperature through the Peltier effect, maintaining a constant internal temperature by absorbing or dissipating heat as needed
Data Source
AI summary
A multilayer electronic component includes a body including dielectric layers and a plurality of internal electrodes stacked on each other in a first direction, and having a respective one of the dielectric layers interposed therebetween; a thermoelectric element disposed inside the body; and external electrodes disposed outside the body.