Folded Wire Connector Structure Without Crimping
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Solution Overview
Problem
Existing terminal devices face challenges in maintaining a stable connection between wires and boards due to reliance on spring biasing forces, and they require complex crimping steps for wire connection, which complicates the connecting operation.
Innovation Solution
A terminal device with integrally coupled first and second piece portions formed of electrically conductive plates, allowing for a simplified connecting operation and structure by eliminating the need for crimping, using a folded portion to maintain a closed state with the wire sandwiched between these portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spring member is used to press the wire toward the board, then the wire and board contact state is maintained, but the connection stability deteriorates because the contact load depends on spring biasing force
Solution Approach 1:
The invention extracts the spring member from the connector structure and transfers it to the wire itself through coil formation. The wire's own structure provides the elastic recovery force, eliminating the separate spring component while maintaining contact stability through the wire's inherent elasticity.
Solution Approach 2:
The wire serves dual functions: as the electrical conductor and as the elastic element providing contact force. The coil-formed wire structure generates its own restoring force to maintain contact with the board, making the system self-sufficient without external spring components.
2Ease of operation
If the wire connecting portion and cover portion are separated in the connector terminal, then the connecting operation is simplified by eliminating crimping, but the processing steps increase due to separate components
Solution Approach 1:
The invention merges the wire connecting portion and cover portion into a single integrated terminal fitting. The terminal fitting simultaneously provides wire insertion capability, clamping function through integrated clamps, and protective coverage, eliminating the need for separate components while maintaining simplified connection operations.
Solution Approach 2:
The terminal fitting performs multiple functions within a single component: it serves as the wire insertion guide, the clamping mechanism through integrated clamps, and the protective cover. This multi-functional design reduces component count while maintaining ease of operation.
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 simplifies the connecting operation and structure of wires by integrating the piece portions via a folded portion, ensuring a stable connection without crimping and preventing the wire from dislodging, while maintaining a secure contact state.
Implementation Method 1
a folded portion (41), and a holding portion (27) for maintaining a closed state of the first and second piece portions (42, 43) closed with a wire (90) sandwiched therebetween
Data Source
AI summary
Provided is a terminal device with which it is possible to simplify a connection structure and the work of connecting wires. A connector (10), serving as this terminal device, comprises: a first piece (42, 42A, 42B) and a second piece (43, 43A, 43B) which are formed of a conductive plate and which are integrally connected so as to be openable via a folded-back section (41, 41A, 41B); and a retaining part (27, 27A, 27B) that maintains the closed state of the first piece (42, 42A, 42B) and the second piece (43, 43A, 43B) in which the same are closed so as to sandwich a wire (90) therebetween.