Electrical Connector Press Fitting Contacts Vibration Resistance
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Solution Overview
Problem
Existing electrical connectors face challenges in withstanding severe vibration conditions, particularly in regions near sources of vibration, as they often fail to provide adequate vibration-resisting properties.
Innovation Solution
The electrical connector design incorporates a housing with a retention wall and contact receiving passageways, featuring a front press fitting section and a rear press fitting section with specific protrusion amounts and arrangements to securely hold contacts, reducing resonance and enhancing vibration resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single press fitting section is used to secure the contact in the housing, then the structure is simple, but the vibration-resisting property is insufficient under severe vibration conditions
Solution Approach 1:
The contact is divided into multiple press fitting sections (front press fitting section and rear press fitting section) positioned at different locations along the contact receiving passageway. This segmentation allows the contact to be secured at multiple points, significantly improving vibration resistance while maintaining a relatively simple overall structure.
Solution Approach 2:
The press fitting sections are arranged not only at different positions along the insertion direction but also at different heights relative to the circuit board. This multi-dimensional arrangement creates a more robust securing mechanism that effectively resists vibrations from various directions.
2Reliability
If the contact is tightly secured in the housing to prevent movement, then vibration resistance improves, but the force required for insertion increases
Solution Approach 1:
By dividing the press fitting into multiple sections along the insertion path, the total insertion force is distributed across different stages rather than concentrated at a single point. This reduces the peak force required during insertion while still achieving secure contact fixation.
Solution Approach 2:
The front press fitting section engages the contact first during insertion, providing preliminary securing before the rear press fitting section engages. This staged approach allows the contact to be gradually secured, reducing the overall insertion force requirement while ensuring reliable fixation.
Data Source
AI summary
An electrical connector is provided and includes a housing and a contact. The housing includes a retention wall with a contact receiving passageway. The contact is secured in the contact receiving passageway and includes a front press fitting section and a rear press fitting section positioned rearward of the front press fitting section by a pitch.