Capacitor Unit Heat Transfer Members for Thermal Management
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Solution Overview
Problem
Capacitor units in electronic devices, especially those with large capacitance, face insufficient cooling due to rising internal temperatures, limiting current flow and design flexibility due to temperature constraints.
Innovation Solution
Incorporation of heat transfer members adjacent to capacitor elements to dissipate heat internally, reducing temperature increases and enhancing cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a capacitor unit with large capacitance is installed in the housing, then the power conversion capability is improved, but the temperature of capacitor elements increases due to insufficient cooling
Solution Approach 1:
A heat transfer member is introduced as an intermediary between the capacitor elements and the surrounding air. This heat transfer member has high thermal conductivity and is in direct contact with the capacitor elements, serving as a mediator to efficiently transfer heat from the capacitor elements to the air, thereby resolving the temperature increase problem while maintaining large capacitance operation
2Productivity
If the allowable temperature of the film in capacitor elements is not sufficiently high, then the current flow capability is limited, but increasing the film temperature rating increases device complexity
Solution Approach 1:
The thermal management approach changes the operating temperature parameters of the capacitor elements by introducing active heat transfer. This allows the system to maintain higher current flow capability by controlling the temperature through the heat transfer member, rather than relying solely on increasing the film's inherent temperature rating, thus avoiding increased device 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
The solution effectively disperses heat generated in capacitor elements, reducing internal temperature increases and allowing for higher current flow and design flexibility by maintaining lower maximum temperatures within the capacitor elements.
Implementation Method 1
The one or more heat transfer members internally dissipate heat received from at least one capacitor element of the plurality of capacitor elements
Data Source
AI summary
A capacitor unit includes a plurality of capacitor elements and one or more heat transfer members located adjacent to at least one capacitor element of the plurality of capacitor elements. The one or more heat transfer members internally dissipate heat received from at least one capacitor element of the plurality of capacitor elements.