PCB Connector With Integrated Magnetic Collar for EMI Suppression
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Solution Overview
Problem
Conventional EMI suppression methods using RF beads in power converter systems are costly, space-intensive, and inefficient, negatively affecting system performance.
Innovation Solution
A connector assembly with conductive through-holes and a magnetic collar is integrated into printed circuit boards to suppress electromagnetic interference, replacing RF beads and other magnetic components, which includes terminal pins and a magnetic collar to effectively manage EMI.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If RF beads are used for EMI suppression, then EMI noise is suppressed, but system efficiency deteriorates and cost increases
Solution Approach 1:
The patent combines the connector structure with EMI suppression functionality by integrating a magnetic collar directly onto the connector body. This merging eliminates the need for separate RF beads, reducing component count and improving system efficiency while maintaining EMI suppression capability through the magnetic material's inherent properties
2Object-affected harmful factors
If RF beads are used for EMI suppression, then EMI noise is suppressed, but PCB area consumption increases
Solution Approach 1:
The EMI suppression function is merged with the connector assembly, allowing the magnetic collar to be mounted directly on the connector body rather than requiring separate PCB mounting space for RF beads. This integration significantly reduces the PCB area required for EMI suppression components
3Object-affected harmful factors
If RF beads are used for EMI suppression, then EMI noise is suppressed, but manufacturing cost increases
Solution Approach 1:
The connector and EMI suppression components are merged into a single integrated assembly. The magnetic collar is directly mounted on the connector body, eliminating the need for separate RF bead components and their associated placement and soldering processes, thereby reducing manufacturing complexity and cost
4Object-affected harmful factors
If magnetic components are used for EMI suppression, then EMI noise is suppressed, but device complexity increases
Solution Approach 1:
The magnetic collar is integrated directly onto the connector body, combining the electrical connection function with the EMI suppression function into a single component assembly. This merging reduces the overall device complexity by eliminating separate magnetic components and their associated mounting hardware
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 provides efficient, cost-effective EMI suppression, reducing the space required for RF beads and improving system efficiency by integrating magnetic components directly into the connector assembly.
Implementation Method 1
The tube of magnetic material surrounds the outer perimeter of the connector. The magnetic collar is configured to function as an inductor to suppress EMI which passes through the magnetic collar
Data Source
AI summary
A connector assembly suppresses electromagnetic interference (EMI) generated by electronic circuitry on a printed circuit board (PCB). The connector assembly includes a plurality of conductive through-holes on the PCB, a connector, and a magnetic collar. The plurality of conductive through-holes are electrically connected to the electronic circuitry on the PCB. The connector has a plurality of terminal pins extending from a connector surface. The plurality of terminal pins and conductive through-holes may be aligned. The terminal pins are positioned through the conductive through-holes to electrically connect the terminals pins to the electronic circuitry. The magnetic collar surrounds the connector. The magnetic collar may also abut the PCB. The magnetic collar suppresses EMI on voltages propagating through the connector.