Connection Terminal Protective Wall Elastic Piece Deformation
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Solution Overview
Problem
Existing connection terminals are vulnerable to plastic deformation of the elastic piece when a release jig is inserted erroneously, particularly when tilted, due to interference with the free end of the elastic piece and protruding components.
Innovation Solution
A connection terminal design featuring a protective wall and a hole within the connection portion to house the free end of the elastic piece, ensuring the elastic piece is protected from interference during erroneous insertions by positioning the protective wall on the inner side of the connection portion and arranging the free end to intersect with the protective wall's extension line, thereby preventing plastic deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the connection terminal uses a simple structure without protective wall, then the device complexity is reduced, but the elastic piece becomes vulnerable to plastic deformation when a release jig is erroneously inserted
Solution Approach 1:
The protective wall acts as an intermediary element between the insertion opening and the elastic piece. It mediates the interaction by intercepting the erroneously inserted release jig before it can reach and deform the elastic piece, thus protecting the elastic piece while maintaining overall structural simplicity
Solution Approach 2:
The protective wall is positioned in advance within the connection portion to preemptively block erroneous insertions. By being already in place before any insertion occurs, it prevents the release jig from reaching the elastic piece during mistaken operations, thereby preserving the elastic piece's integrity
2Reliability
If the protective wall is positioned to fully protect the elastic piece, then the elastic piece protection is improved, but the insertion opening becomes more restricted
Solution Approach 1:
The protective wall provides localized protection only in the specific region where the elastic piece is positioned, rather than blocking the entire insertion opening. This localized approach ensures that the elastic piece is protected from erroneous insertions while maintaining adequate access for the release jig to reach its intended target
3Force
If the free end of the elastic piece is positioned to maximize elastic deformation range, then the contact force is improved, but the vulnerability to erroneous insertion interference increases
Solution Approach 1:
The protective wall serves as a mediator that shields the free end of the elastic piece from harmful interference during erroneous insertions. It allows the free end to maintain its optimal position for maximizing contact force while preventing the release jig from accidentally contacting and deforming it
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 effectively prevents plastic deformation of the elastic piece during erroneous insertions, maintaining the elastic deformation force and enhancing electrical connection reliability by ensuring the free end is protected from interference, even during tilted insertions.
Implementation Method 1
an elastic piece that is elastically deformable, is arranged inside the connection portion, with an end portion on a side of the insertion opening as a free end, and has a contact portion that comes into contact with the mating connection portion
Data Source
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AI summary
In a connection terminal (1) including a box-shaped connection portion (7) having an insertion opening (5) into which a mating connection portion (3) is inserted, and an elastic piece (13) that is elastically deformable is arranged inside the connection portion, with a free end (9) arranged on a side of the insertion opening, and has a contact portion (11) that comes into contact with the mating connection portion, the connection portion is provided with a protective wall (15) protruding toward an inside of the connection portion and arranged adjacent to the free end of the elastic piece, and a side of the free end of the elastic piece is arranged so as to intersect an extension line connecting a protruding end (17) of the protective wall and an opening edge (19) of the insertion opening facing the protruding end.