FPC Connector Cam Inclined Surface Elastic Deformation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional connectors face challenges in achieving optimal contact stability between terminals and flat electrical wires due to limitations in the distance between the cam and pressing portion, which affects the elastic deformation and stability of the connection.
Innovation Solution
The connector design includes a cam positioned between the first and second beams, with an inclined surface on the second beam that extends upward and backward, increasing the distance between the cam's push point and the pressing portion, thereby enhancing elastic deformation and stability while maintaining a balanced design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cam is positioned farther backward from the pressing portion to increase elastic deformation, then contact stability is improved, but the positioning difficulty and device complexity increase
Solution Approach 1:
The patent introduces an inclined surface on the second beam that extends upward and backward, transforming the cam's linear backward movement into rotational motion. This dimensional transformation allows the cam to achieve the necessary elastic deformation distance without requiring excessive linear displacement, thereby resolving the positioning difficulty while maintaining contact stability.
Solution Approach 2:
The patent changes the geometric parameters of the second beam by adding an inclined surface with a specific angle. This parameter change enables the cam to generate sufficient moment for elastic deformation through rotational motion rather than linear displacement, solving the contradiction between contact stability and positioning complexity.
2Reliability
If the distance between the cam and pressing portion is increased to improve contact stability, then elastic deformation increases, but the overall connector length increases
Solution Approach 1:
By introducing the inclined surface that converts linear motion into rotation, the patent achieves the functional equivalent of a longer cam-to-pressing-portion distance without actually increasing the linear dimensions of the connector. The rotational mechanism allows the cam to generate sufficient moment within a compact space.
Solution Approach 2:
The inclined surface is integrated into the second beam structure, nesting the motion transformation mechanism within the existing beam geometry. This allows the cam mechanism to achieve extended functional distance through rotational leverage without adding external length to the connector.
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
This configuration increases the moment around the pressing portion, improving contact stability between the terminal and the flat electrical wire, and allows for easier positioning of the cam, enhancing the overall connection reliability.
Implementation Method 1
the center beam is elastically deformed so that the center beam is distended downward with the pressing portion as the fulcrum
Implementation Method 2
a moment is generated around the pressing portion by the effort force of the cam on the center beam
Data Source
AI summary
To provide a connector that increases the amount of elastic deformation of a beam and can improve the contact stability between a flat electrical wire and a terminal while restraining an increase in the difference between the position of a cam in the anteroposterior direction and the position of a pressing portion formed on the cam, a pressing portion that pushes flat electrical wire is formed on the lower surface of center beam of rear connecting terminal. Cam of actuator is positioned between upper beam and center beam of rear connecting terminal. Inclined surface that extends at an angle upward and backward is formed on the upper surface of center beam. Cam pushes inclined surface down.