Elastic Contact Terminals for High-Current Board-to-Board Connections
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Solution Overview
Problem
Existing electronic components face reliability issues when connecting two substrates for high current flow, as extending connectors can compromise connection reliability.
Innovation Solution
An electronic component design featuring first and second substrates with elastically deformable connection terminals and a locking mechanism, allowing for secure and stable electrical connection between the substrates, even when not accurately positioned, using elastic contact pieces and a conductive locking part for enhanced reliability and current flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If board-to-board connectors are extended to flow large current between substrates, then current flow capability is improved, but connection reliability deteriorates
Solution Approach 1:
The connection terminal incorporates an elastic contact piece that can dynamically deform elastically in the direction of approach and departure between the tip end portion and the base. This dynamic elasticity allows the connector to maintain reliable contact under varying conditions while supporting large current flow, resolving the contradiction between power capability and connection reliability.
2Reliability
If connectors are extended to ensure high reliability, then connection reliability is improved, but device complexity increases
Solution Approach 1:
The connection terminal merges multiple functions into a single integrated structure: the base provides structural support and electrical connection, while the elastic contact piece provides both mechanical contact and reliability through elastic deformation. This merging achieves high connection reliability without requiring multiple separate components, thus avoiding increased device complexity.
Solution Approach 2:
The connection terminal utilizes changes in physical parameters, specifically the elastic deformation of the contact piece, to achieve reliable connection. By changing the mechanical state of the contact piece from rigid to elastically deformable, the system achieves high reliability without adding structural complexity.
3Reliability
If elastic contact pieces are used to improve connection reliability, then connection reliability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The elastic contact piece is designed with specific geometric parameters (width, thickness, length) that determine its elastic properties. By carefully selecting these parameters, the contact piece can achieve the desired elastic deformation characteristics without requiring extremely tight manufacturing tolerances. The elastic nature of the material compensates for minor variations in manufacturing precision.
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
Ensures high reliability in the connection between substrates while enabling the flow of large currents, with the elastic contact pieces providing flexibility and stability during assembly, reducing the risk of damage and hindrance in the connection process.
Implementation Method 1
the elastic contact piece is elastically deformable in a direction in which the tip end portion thereof approaches and departs with respect to the base
Data Source
AI summary
An electronic component includes a first substrate including first connection terminals in an end region on a first surface; and a second substrate including second connection terminals on a first surface, the second connection terminals being disposed at a position corresponding to the first connection terminals. Each of the first connection terminals includes a base and an elastic contact piece extending from the base. The elastic contact piece is elastically deformable in a direction in which the tip end portion thereof approaches and departs with respect to the base. The first connection terminals are electrically connected to the second connection terminals while having the first surface of the first substrate being opposed to the first surface of the second substrate, and the second connection terminals being pressed onto the elastic contact pieces.