Electrical Connector Assembly With Intermediary Circuit Board
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Solution Overview
Problem
Existing electrical connector assemblies for circuit boards are difficult to disassemble and reassemble, and direct soldering can damage the soft plate and hinder future removal and replacement, as well as cause adjacent lines to lap together during heating.
Innovation Solution
An electrical connector assembly comprising an insulative housing with terminals and a circuit board assembly with a hard circuit board and flexible printed circuit board, where dowel pins with tapered heads guide alignment and adjustable pilot holes facilitate assembly, and resilient contacting portions connect conductive portions to prevent damage from soldering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the circuit board assembly is directly soldered to the electronic device, then electrical connections are achieved, but the soft plate may be damaged by heat and adjacent lines may lap together
Solution Approach 1:
The patent introduces a circuit board assembly as an intermediary component between the electronic device and the soft plate. This intermediary allows electrical connections to be established through soldering while isolating the soft plate from direct exposure to soldering heat, thus preventing heat damage and line lapping while maintaining reliable electrical connections
2Reliability
If the circuit board assembly is directly soldered to the electronic device, then electrical connections are achieved, but future removal and replacement becomes difficult
Solution Approach 1:
The patent segments the electrical connection system into distinct components: the electronic device, the circuit board assembly, and the soft plate. This segmentation allows the circuit board assembly to be independently removed and replaced while maintaining electrical connections, thus improving ease of operation for future maintenance and upgrades while ensuring reliable electrical connectivity
3Reliability
If adjacent lines of the soft plate are heated by soldering materials, then electrical connections are established, but the lines may lap together and influence normal use
Solution Approach 1:
The circuit board assembly serves as a mediator that positions soldering materials away from the soft plate's adjacent lines. The intermediary structure allows soldering to occur on the circuit board assembly without the heat and molten solder directly contacting or heating the soft plate lines, thus preventing line lapping and maintaining manufacturing precision while establishing reliable electrical connections
Data Source
AI summary
An electrical connector assembly comprises an electrical connector and a circuit board assembly mating with the electrical connector. The electrical connector comprises an insulative housing and a plurality of terminals retained in the insulative housing. The insulative housing defines a mating surface and a mounting surface. Each of the terminal comprises a contacting portion extending out of the mating surface and a connecting portion extending out of the mounting surface. The circuit board assembly comprises a hard circuit board and a flexible printed circuit board fixing on the hard circuit board. The hard circuit board comprises a plurality of conductive portions. When the circuit board assembly mating with the electrical connector, the conductive portions connect with the contacting portion. The electrical connector assembly can not only facilitate the disassembly and assembly of the circuit board assembly, but also prevent the circuit board assembly from being damaged in welding.