Perpendicular Connector Assembly for Differential Signal Transmission
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Solution Overview
Problem
Existing connector assemblies face difficulties in designing circuit boards for synchronous transmission of differential signals due to length differences in paired signal lines and the need for space to accommodate bent cables, which complicates miniaturization and high-power signal transmission.
Innovation Solution
A connector assembly design where differential signal lines are directly conducted to the circuit board in a left-right direction, ensuring equal lengths and eliminating the need for length compensation, and a power plug is added without interfering with signal lines by placing it on the sides, simplifying the circuit board design and enabling synchronous transmission of high-power signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the cable is bent for about 90 degrees at the rear side of the circuit board and then is welded to the circuit board, then the cable can be connected to the circuit board, but the lengths of the paired differential signal lines in the cable are not the same, requiring length compensation in the circuit board design
Solution Approach 1:
The patent applies preliminary action by pre-configuring the cable assembly with equal-length differential signal lines before connection to the circuit board. The cable is designed with equal-length paired signal lines from the outset, eliminating the need for subsequent length compensation adjustments in the circuit board design process.
2Ease of manufacture
If the cable is bent for about 90 degrees at the rear side of the circuit board and then is welded to the circuit board, then the cable can be connected to the circuit board, but a space for bending the cable needs to be reserved in the connector assembly, resulting in difficulties in miniaturization
Solution Approach 1:
The patent applies inversion by changing the cable connection orientation from a bent configuration to a substantially perpendicular configuration relative to the circuit board. This inverts the traditional cable routing approach, allowing the cable to extend perpendicular to the circuit board without requiring bending space, thereby enabling miniaturization of the connector assembly.
3Power
If a power plug is added to provide extra power for high-power signal transmission, then power can be supplied, but it is not intended to bend the differential signal lines to leave space for the power plug, so the forgoing discussed problems in the designs of the circuit board exist
Solution Approach 1:
The patent applies dimensionality change by adding the power plug in a spatial dimension that does not interfere with the differential signal lines. The power plug and cable are configured to connect in a direction substantially perpendicular to the circuit board, utilizing a different spatial dimension than the signal lines, thereby avoiding the need to bend signal lines or redesign circuit board traces for power accommodation.
Data Source
AI summary
A connector assembly includes a circuit board, a signal plug and a cable. The circuit board has at least one pair of traces of the same length. The signal plug is disposed at a front side of the circuit board, and has at least one pair of terminals of the same length that are respectively conducted to a paired first signal contacts of the pair of traces. The cable extends from the circuit board in a left-right direction and conducts to the circuit board. An extension direction of the cable is substantially perpendicular to an insertion direction of the signal plug. The cable has at least one pair of differential signal lines that are respectively conducted to a paired second signal contacts of the pair of traces.