Coil Component Winding Geometry for Thermal Management
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Solution Overview
Problem
Existing coil components experience thermal issues due to the thermal effect of circuit boards, which can lead to performance degradation and reliability concerns when mounted on these boards.
Innovation Solution
A coil component design with a winding core portion and flange portions where the first and second wires are wound in the same direction, featuring terminal electrodes positioned to increase the distance between the winding portion and the circuit board, thereby reducing thermal impact. This design includes a core with a specific geometry and terminal electrode placement to minimize thermal effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the winding portion is positioned close to the circuit board for compact mounting, then the device size is reduced, but the thermal effect from the circuit board on the winding portion increases causing performance degradation
Solution Approach 1:
The patent positions the winding portion at an elevated position above the circuit board by utilizing the vertical dimension. The coil component is mounted on the circuit board through terminal electrodes while the winding portion extends upward, creating spatial separation between the heat-generating circuit board and the temperature-sensitive winding portion. This dimensional separation effectively reduces thermal coupling while maintaining compact footprint.
2Volume of moving object
If the winding portion is positioned close to the circuit board for compact mounting, then the device size is reduced, but the reliability of the coil component decreases due to thermal impact
Solution Approach 1:
The patent positions the winding portion at an elevated position above the circuit board by utilizing the vertical dimension. The coil component is mounted on the circuit board through terminal electrodes while the winding portion extends upward, creating spatial separation between the heat-generating circuit board and the temperature-sensitive winding portion. This dimensional separation effectively reduces thermal coupling while maintaining compact footprint.
Data Source
AI summary
A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, a first wire and a second wire that are wound around the winding core portion in the same direction and that form a winding portion, a first terminal electrode and a second terminal electrode that are disposed on the first flange portion, and a third terminal electrode and a fourth terminal electrode that are disposed on the second flange portion. A length of the winding portion along a bottom surface of the winding core portion is shorter than a length of the winding portion along an upper surface of the winding core portion.