Low-Profile Coil Layout With Parallel Lead-Outs for PCB Clearance
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Solution Overview
Problem
Coil components require reduced size and low-profile designs for integration in limited spaces while maintaining high capacitance properties and preventing short circuits with adjacent components.
Innovation Solution
A coil component design featuring a body with opposing surfaces, a mold portion with a core, a cover portion, a wound coil, lead-out portions, and external electrodes, where the lead-out portions are parallel to the winding axis, ensuring effective volume and preventing short circuits during mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the coil component size is reduced to fit limited spaces, then the installation space requirement is improved, but the capacitance properties deteriorate
Solution Approach 1:
The patent reorients the lead-out portions to be parallel to the winding axis rather than perpendicular, effectively changing the dimensional arrangement of external connections. This allows the component to maintain its small footprint while optimizing the internal volume utilization for capacitance, as the lead-out configuration no longer consumes lateral space that could be used for capacitive structures.
Solution Approach 2:
The patent changes the geometric parameter of the lead-out portions from a conventional perpendicular orientation to a parallel orientation relative to the winding axis. This parameter change optimizes the spatial distribution of electrical fields within the component, improving capacitance properties without increasing the overall component volume.
2Length of stationary object
If the coil component is designed with low-profile for limited space installation, then the height dimension is improved, but the effective volume for capacitance is reduced
Solution Approach 1:
By changing the lead-out orientation to be parallel to the winding axis, the patent effectively redistributes the component's internal volume. The lead-out portions now extend along the length of the winding rather than cutting across the height, preserving the low-profile characteristic while maximizing the vertical space available for capacitive structures.
3Ease of manufacture
If the lead-out portions are configured conventionally (perpendicular to winding axis), then the external connection is simplified, but short circuits with adjacent components may occur
Solution Approach 1:
The patent introduces asymmetry in the lead-out configuration by orienting them parallel to the winding axis rather than perpendicular. This asymmetric arrangement creates a more favorable spatial distribution that reduces the risk of short circuits with adjacent components, while the manufacturing process remains comparable to conventional designs.
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 design achieves a reduced size and low-profile with high capacitance properties, preventing short circuits and facilitating easy integration on printed circuit boards by optimizing the lead-out and external electrode configuration.
Implementation Method 1
a wound coil having a wound portion disposed between the mold portion and the cover portion and wound around the core
Data Source
AI summary
A coil component includes a body having first and second surfaces opposing each other, third and fourth surfaces opposing each other, and fifth and sixth surfaces connecting the first to fourth surfaces and including a mold portion having a core protruding from one surface and a cover portion disposed on the one surface of the mold portion, a wound coil having a wound portion disposed between the mold portion and the cover portion and wound around the core, a lead-out portion disposed on a side surface of the mold portion and exposed to the sixth surface of the body, and a connection portion connecting the wound portion to the lead-out portion, and an external electrode disposed on the sixth surface of the body and connected to the lead-out portion, wherein the lead-out portion is disposed to be parallel to a winding axis of the wound portion.