Connector Elastic Lance Contact Pressure
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Solution Overview
Problem
Conventional connectors face a challenge in maintaining high contact pressure between male and female terminals due to the elastic contact piece's tendency to deform and collapse under increased stress, leading to a reduced ability to exert desired contact pressure.
Innovation Solution
The connector design incorporates an elastic wall portion and an elastic lance, where the elastic contact piece is supported by the tubular wall portion, and an auxiliary elastic piece is used to increase contact pressure without requiring increased displacement, ensuring the elastic contact piece does not collapse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the elastic contact piece is displaced by a longer distance to increase contact pressure, then the contact pressure between male and female terminals is improved, but the stress on the root portion of the elastic contact piece increases causing plastic deformation and collapse
Solution Approach 1:
The invention divides the contact pressure generation function into two separate components: the elastic contact piece (which provides basic contact pressure) and the auxiliary elastic piece (which provides additional contact pressure). This segmentation allows each component to operate within its elastic deformation limits, preventing collapse while achieving the desired total contact pressure between male and female terminals.
2Force
If the elastic contact piece is displaced by a longer distance to increase contact pressure, then the contact pressure of the elastic contact piece is increased, but the elastic contact piece plastically deforms and becomes unable to return to the original shape
Solution Approach 1:
The contact pressure generation function is segmented between the elastic contact piece and auxiliary elastic piece. The auxiliary elastic piece is configured to be elastically deformed during insertion, providing additional contact pressure without requiring excessive displacement from the elastic contact piece, thereby maintaining the elastic contact piece's shape stability and ability to return to its original shape.
Solution Approach 2:
The invention changes the structural parameters by adding an auxiliary elastic piece with specific geometric features (such as a pressing portion that contacts the elastic contact piece). This auxiliary structure provides the additional force needed while keeping the elastic contact piece's displacement within elastic limits, preventing plastic deformation.
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 achieves a higher contact pressure between male and female terminals, maintaining the fixation strength and preventing the elastic contact piece from collapsing, thus ensuring a stable electrical connection.
Implementation Method 1
an elastic contact piece that is disposed in the socket portion while only one end side is supported by the tubular wall portion of the socket portion
Implementation Method 2
the female terminal has an elastic wall portion which is configured by a part of the tubular wall portion of the socket portion, and which is outwardly pressed by the displaced elastic contact piece to be displaced
Implementation Method 3
the elastic lance is disposed on a side of the elastic wall portion of the socket portion so as to be outwardly pressed by the displaced elastic wall portion to be displaced
Data Source
AI summary
A connector in which a large contact pressure between male and female terminals is obtained. The female terminal has an elastic wall portion that is outwardly pressed by the displaced elastic contact piece to be displaced. The elastic lance is disposed on the side of the elastic wall portion of the socket portion so as to be outwardly pressed by the displaced elastic wall portion to be displaced. The displaced elastic contact piece is pressed by the displaced elastic wall portion and the elastic lance, thereby increasing the contact pressure of the elastic contact piece.