Press-Fit Electrical Connection Assembly for Solder-Free Board Linking

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Solution Overview

Problem

Existing electrical connection methods between circuit boards, such as using electrical connectors or flexible flat cables, are costly or require difficult welding processes.

Innovation Solution

An electrical connection assembly comprising a first insulator, a connection terminal with press fitting parts, and a flexible connection member, allowing for easy and cost-effective electrical connections between circuit boards without welding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If electrical connectors (board end connector and cable end connector) are used to connect circuit boards, then reliable electrical connection is achieved, but the cost increases due to requiring two board end connectors and two cable end connectors

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidnumber of connectors
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the cable end connector and board end connector functions into a single integrated connector assembly. The connector includes a housing with a cable receiving portion and a circuit board receiving portion, allowing one connector to perform the function of what previously required two separate connectors, thereby reducing cost while maintaining connection reliability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single connector is designed with multi-functionality to accommodate both cable connection and circuit board connection within one component. The connector housing includes multiple contact members that can simultaneously establish electrical connections with both the cable and the circuit board, making one connector serve multiple purposes

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If FFC or FPC is directly soldered to the circuit board, then electrical connection is achieved, but the manufacturing process becomes difficult due to welding requirements

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidwelding difficulty
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent replaces the welding/soldering process with a mechanical pressing connection system. The connection terminal includes press fitting parts that are pressed into holes of the adapter circuit board to establish electrical connections, eliminating the need for welding operations and simplifying the manufacturing process while maintaining reliable electrical connectivity

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 simple, fast, and cost-effective electrical connections between circuit boards, reducing material costs and simplifying the connection process.

Implementation Method 1

a first press fitting part pressed into a first hole of a first adapter circuit board

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentUS12542382B2Electrical connection assembly and electrical connection device
Publication Date: 2026.02.03 TYCO ELECTRONICS (SHANGHAI) CO LTD
  • US12542382B2 patent drawing
  • US12542382B2 patent drawing
  • US12542382B2 patent drawing

AI summary

An electrical connection assembly includes a first insulator, a first adapter circuit board defining a first hole, a first connection terminal fixed to the first insulator, and a flexible connection member. The first connection terminal includes a first press fitting part pressed into the first hole of the first adapter circuit board and electrically connected to the first adapter circuit board, and a second press fitting part protruding from the first insulator and adapted to be pressed into a second hole of a first circuit board to be electrically connected to the first circuit board. The flexible connection member includes a connection conductor electrically connected to the first adapter circuit board.