Electrical Connector Shielding and Elastic PCB Mounting
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Solution Overview
Problem
Existing electrical connector assemblies face challenges in achieving high transmission rates and effective signal shielding, particularly in their connection to circuit boards, which affects the quality of signal transmission and requires complex manufacturing processes.
Innovation Solution
An electrical connector assembly featuring an insulating body with elastic conductive terminals and a metal shielding shell that defines a receiving cavity, providing enhanced shielding and easy installation by using elastic abutting portions to engage with the circuit board, thereby improving signal quality and simplifying manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional mounting methods (through hole soldering, surface soldering, press-fit) are used to connect the mounting foot to the circuit board, then the electrical connector can be connected to the circuit board, but the connection methods face great challenges as transmission rate requirements increase and the manufacturing process becomes complex
Solution Approach 1:
The patent replaces traditional mechanical connection methods (soldering, press-fit) with a snap-fit mechanical engagement system. The elastic abutting portion of the conductive terminal engages with the circuit board through elastic deformation, eliminating the need for soldering or complex press-fit operations. This mechanical substitution simplifies the manufacturing process while maintaining reliable electrical connection for high-speed signal transmission
Solution Approach 2:
The patent utilizes elastic deformation as a key parameter change mechanism. The conductive terminal is designed with elastic portions that deform during insertion and maintain continuous contact pressure against the circuit board. This elastic parameter change enables reliable electrical connection without traditional joining methods, reducing manufacturing complexity while ensuring stable signal transmission
2Reliability
If no shielding structure is provided, then the device structure remains simple, but signal transmission interference increases and transmission rate requirements cannot be met
Solution Approach 1:
The patent merges the shielding function with the existing insulating body structure. The insulating body is designed to include a shielding cavity that accommodates the conductive terminals and provides electromagnetic shielding. By integrating the shielding function into the insulating body rather than adding separate shielding components, the patent reduces overall device complexity while improving signal transmission quality
Solution Approach 2:
The insulating body serves multiple functions simultaneously: electrical insulation, structural support, and electromagnetic shielding. The shielding cavity within the insulating body provides electromagnetic protection for the conductive terminals while the insulating material itself provides both mechanical support and RF shielding properties. This multi-functionality reduces the need for additional dedicated shielding components
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 a better shielding environment for improved signal transmission and reduces the complexity of circuit board manufacturing by using elastic abutting portions for electrical connection, enhancing the overall performance and reliability of the electrical connector assembly.
Implementation Method 1
a metal shielding shell, the metal shielding shell shielding the electrical connector
Implementation Method 2
each conductive terminal comprising an elastic contact portion protruding into the slot and an elastic abutting portion extending toward the mounting surface
Data Source
AI summary
An electrical connector assembly includes an electrical connector and a metal shielding shell. The electrical connector includes an insulating body and a number of conductive terminals. The insulating body includes a slot. Each conductive terminal includes an elastic abutting portion for abutting against the circuit board. The metal shielding shell includes a receiving cavity for receiving a mating connector. When the mating connector is inserted into the receiving cavity and has not yet made contact with the conductive terminals of the electrical connector, a better shielding effect can be achieved. Besides, by electrically connecting the conductive terminals and the circuit board in a mutually abutting manner, the requirement on the complexity of the circuit board manufacturing process is reduced.