Connector Spring Plate Stabilizer Guide Rattle Prevention
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Solution Overview
Problem
Existing connectors face challenges in preventing terminal rattling within the connector housing while maintaining miniaturization, as protruding spring parts increase the terminal's width, requiring wider pitches and hindering compact design.
Innovation Solution
A connector design featuring a rectangular cylindrical box part with a spring plate that flares outward, utilizing a stabilizer with an inclined guide and holding guide to press and hold the spring plate back, accumulating spring force to prevent rattling without enlarging the terminal's dimensions, and incorporating a chamfered inclined portion and flat portion on the stabilizer for smooth insertion and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If spring parts protrude outside the side plates of the box part to prevent terminal rattling, then terminal stability is improved, but the overall width of the terminal increases
Solution Approach 1:
The spring plate is integrated into the box part structure itself, merging the stabilizing function with the structural framework. The face plate that forms the box part is designed to function as both a structural element and a spring mechanism, eliminating the need for separate protruding spring parts.
Solution Approach 2:
The spring plate is nested within the box part structure, with the stabilizer portion contained within the cavity of the connector housing. The spring plate deflects inward to engage with the cavity wall, nesting the stabilizing mechanism within the existing structural boundaries rather than extending outward.
2Stability of the object's composition
If the terminal width is increased to accommodate protruding spring parts, then terminal stability is improved, but the pitch between terminals must be enlarged
Solution Approach 1:
The spring plate is integrated into the box part structure itself, merging the stabilizing function with the structural framework. The face plate that forms the box part is designed to function as both a structural element and a spring mechanism, eliminating the need for separate protruding spring parts.
Solution Approach 2:
The spring plate is nested within the box part structure, with the stabilizer portion contained within the cavity of the connector housing. The spring plate deflects inward to engage with the cavity wall, nesting the stabilizing mechanism within the existing structural boundaries rather than extending outward.
3Length of moving object
If the spring plate is held in a regular position forming a rectangular cylindrical shape, then the connector achieves miniaturization, but the terminal may rattle in the cavity
Solution Approach 1:
The spring plate is designed to be flexible and dynamic, capable of deflecting inward during insertion and then rebounding to engage with the cavity wall. This dynamic behavior allows the plate to transition from a compact rectangular cylindrical shape to an engaged position that prevents rattling, and back again during removal.
Solution Approach 2:
The spring plate changes its physical state by deflecting inward and accumulating spring force, then rebounding to engage with the cavity wall. This parameter change in position and force enables the plate to provide stabilizing contact with the cavity wall while maintaining a compact form when not engaged.
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 terminal rattling and enhances contact reliability while maintaining compact dimensions, allowing for miniaturization without enlarging the connector's pitch between terminals.
Implementation Method 1
one face plate of the four face plates constituting the box part of the terminal is formed as a spring plate that is flared outward in a free state before the terminal is inserted in the cavity to be held in a regular position at which the rectangular cylindrical shape is formed, by deflecting inward and displacing by being pressed inward from the outside while accumulating a spring force
Implementation Method 2
the inclined guide portion gradually pressing back the face plate formed as the spring plate to the regular position by sliding contact with the stabilizer while the terminal is being inserted in the cavity from the rear direction
Data Source
AI summary
An upper face plate constituting a box part of a female terminal is flared outward in a free state before the female terminal is inserted in the cavity, and is formed as a spring plate that is bent and deflected inward by being pressed inward from the outside while accumulating a spring force. A stabilizer is disposed on the free end of the upper face plate. A cavity of a connector housing includes a stabilizer guide that presses back the upper face plate to the regular position by sliding on the stabilizer while the female terminal is being inserted. Accordingly, rattling of the terminal is prevented after the terminal is inserted in the cavity of the connector housing while suppressing enlargement of the outside dimensions of the terminal.