Press-Fit Electrical Connection Assembly for Solder-Free Board Linking
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Solution Overview
Problem
Existing electrical connection methods between circuit boards are either costly due to the need for multiple connectors or difficult to implement with flexible flat cables or printed circuit boards, which require complex welding.
Innovation Solution
An electrical connection assembly comprising a press fitting system with insulators, connection terminals, and flexible connection members that allow for easy electrical connection between circuit boards without welding, using press fitting parts that can be easily inserted into pre-formed holes on the circuit boards and adapter circuit boards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connectors are used to connect circuit boards, then electrical connection is achieved, but the cost increases due to requiring two board end connectors and two cable end connectors
Solution Approach 1:
The patent combines multiple connector functions into a single integrated connector assembly. The board end connector and cable end connector are merged into one unified structure that simultaneously provides both connection functions, thereby reducing the total number of connectors from four to one and lowering manufacturing costs.
Solution Approach 2:
The integrated connector is designed to perform multiple functions: it serves as both a board end connector and a cable end connector. This multi-functional design allows a single component to replace what would traditionally require separate specialized connectors, reducing overall system complexity and cost.
2Reliability
If FFC or FPC is directly soldered to the circuit board, then electrical connection is achieved, but the welding process becomes relatively difficult
Solution Approach 1:
The patent introduces a connector as an intermediary component between the FFC/FPC and the circuit board. Instead of directly soldering the flexible cable to the board, the connector provides intermediate connection points (press-fit terminals) that simplify the assembly process and eliminate the need for complex welding operations on the flexible cable itself.
Solution Approach 2:
The patent replaces the welding process with a mechanical press-fit connection system. The press-fit terminals in the connector can be easily inserted into pre-formed holes in the circuit board without requiring soldering, thereby substituting a complex thermal-mechanical process (welding) with a simpler mechanical assembly process.
Data Source
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AI summary
The present invention discloses an electrical connection assembly and an electrical connection device. The electrical connection assembly comprises of: a first insulator (31); a first connection terminal (32) which is fixed to the first insulator (31) and includes a first press fitting part (32a) and a second press fitting part (32b) protruding from the first insulator (31); a first adapter circuit board (34), on which a first hole (341) is formed; and a flexible connection member (33) including a connection conductor electrically connected to the first adapter circuit board (34). The first press fitting part (32a) is pressed into the first hole (341) of the first adapter circuit board (34) to be electrically connected to the first adapter circuit board (34); the second press fitting part (32b) is adapted to be pressed into a second hole (101) of a first circuit board (1) to be electrically connected to the first circuit board (1). In the present invention, the electrical connection assembly can achieve flexible electrical connection between two circuit boards, and the electrical connection assembly has a simple structure and low cost.