Flexible Printed Circuit Board Connector for Impact Absorption
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic devices with user-replaceable options face challenges in minimizing impact during attachment while maintaining high-speed signal quality, particularly due to the limitations of traditional connectors and assemblability.
Innovation Solution
The use of a flexible printed circuit board with a coupling connector system that includes a main-side coupling connector and high-speed signal transmission connectors, allowing for reduced impact absorption and improved signal quality through a concave-convex connector relationship and flexible bending, enabling easy user replacement and assembly with a small number of pins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a traditional connector is used for option attachment, then the structure is simple and cost is reduced, but impact during attachment cannot be suppressed and high-speed signal quality deteriorates
Solution Approach 1:
The flexible printed circuit board is designed with a movable connector that can absorb impact forces before they reach the rigid main board. The flexibility of the FPC acts as a cushioning mechanism that prevents direct transmission of attachment impact to the main board and rigid connector components.
Solution Approach 2:
The patent employs a flexible printed circuit board as the connector medium, utilizing its inherent flexibility to accommodate attachment impacts. The FPC's flexible nature allows it to deform during option attachment, absorbing mechanical stress while maintaining electrical connectivity, thus protecting the rigid main board structure.
2Reliability
If a traditional rigid connector is used, then assembly is straightforward, but high-speed signal quality cannot be maintained due to impact and structural rigidity
Solution Approach 1:
The connector system transitions from a rigid, static connection to a dynamic connection where the flexible printed circuit board can move and adapt during assembly. The movable connector on the FPC allows for dynamic absorption of assembly variations and impacts, ensuring reliable high-speed signal transmission despite manufacturing tolerances.
Solution Approach 2:
The patent changes the physical state of the connector from rigid to flexible by using a flexible printed circuit board. This parameter change allows the connector to exhibit both flexibility during assembly (improving assemblability) and signal integrity during operation (maintaining high-speed signal quality).
3Reliability
If a connector with many pins is used to ensure signal quality, then signal integrity is improved, but cost increases and assemblability deteriorates
Solution Approach 1:
The flexible printed circuit board enables a simplified connector design with fewer pins while maintaining signal quality. The flexibility of the FPC compensates for the reduced pin count by providing mechanical compliance that ensures reliable contact, thereby reducing cost and improving assemblability without sacrificing signal integrity.
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 solution ensures secure and cost-effective assembly with high-speed signal integrity and reduced impact during option attachment, enhancing user convenience and device reliability.
Implementation Method 1
a flexible printed circuit board having a coupling connector connected to an option board on which the option is mounted
Data Source
AI summary
An electronic device is an electronic device on which an option replaceable by a user is mounted. The electronic device includes a main board and a flexible printed circuit board connected to the main board. The flexible printed circuit board has a coupling connector connected to an option board on which the option is mounted.