Asymmetric Electrical Connector End Wall Reduces Signal Loss
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Solution Overview
Problem
Existing electrical connector assemblies experience signal loss and crosstalk due to excessive wire bending caused by the unequal heights of end walls, which compromise high-frequency characteristics.
Innovation Solution
The design features a first end wall with a top surface lower than adjacent conductive portions, reducing the need for notches and minimizing wire bending, thereby shortening wire length and improving high-frequency performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the first end wall height is increased to accommodate the connector structure, then the connector assembly is more stable, but the wire bending increases causing signal loss and crosstalk
Solution Approach 1:
The first end wall is designed with an asymmetric height relative to the circuit board surface, specifically making the top surface of the first end wall lower than the adjacent first conductive portions. This asymmetric configuration eliminates the need for a notch in the circuit board, allowing wires to maintain a straighter path and reducing bending-induced signal loss and crosstalk while preserving connector stability.
2Ease of manufacture
If a notch is created in the circuit board to accommodate the first end wall, then the connector can be properly positioned, but the wire path becomes longer and more bent
Solution Approach 1:
Instead of cutting a notch into the circuit board to accommodate the connector end wall, the design inverts the approach by making the end wall lower than the circuit board surface. This reversal eliminates the notch requirement entirely, allowing wires to travel in straighter paths between conductive portions while still enabling proper connector positioning through the lowered end wall configuration.
3Reliability
If the wire path is shortened to reduce signal loss, then high frequency characteristics improve, but the connector positioning becomes more difficult
Solution Approach 1:
The asymmetric height design of the first end wall, positioned lower than the adjacent conductive portions, simultaneously achieves both objectives: it shortens the wire path by eliminating the need to route around a notch, improving high-frequency characteristics, while still providing adequate connector positioning through the modified end wall geometry that interfaces with the circuit board.
Data Source
AI summary
An electrical connector assembly includes a first connector. The first connector has a main body. The main body has a first end wall and a second end wall opposite to each other. Multiple first terminals are provided on the main body. The first connector is used to be mated with a circuit board. The circuit board has multiple first conductive portions, multiple second conductive portions and multiple first wires electrically connecting the first conductive portions and the second conductive portions correspondingly. The second conductive portion is correspondingly electrically connected to the first terminal. The first end wall is located closer to the first conductive portion relative to the second end wall. A top surface of the first end wall is lower than a corresponding first conductive portion adjacent to the first end wall.