Board End Connector Interference Fit for Stable Housing Locking
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Solution Overview
Problem
Conventional board end connectors experience insufficient retaining force between the housing and the insulating body, leading to easy detachment during use.
Innovation Solution
The design incorporates a plugging bump member with interfering bumps that engage with interference sidewalls in the plugging slot, providing increased retaining force and secure connection between the housing and the insulating body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a limiting component or positioning component is arranged between the housing and the insulating body, then the housing can be secured onto the insulating body, but the retaining force is insufficient and the housing can still be easily detached
Solution Approach 1:
The connection interface is segmented into multiple interference sidewalls (first and second interference sidewalls) and corresponding interfering bumps, distributing the retaining force across multiple contact points rather than relying on a single limiting component
Solution Approach 2:
The interference sidewalls extend in multiple directions (first direction and second direction perpendicular to the first), creating a multi-dimensional interference structure that prevents detachment from various angles and significantly increases the force required to separate the housing from the insulating body
2Stability of the object's composition
If the housing is firmly connected to the insulating body, then detachment is prevented, but the structure becomes more complex with additional interference features
Solution Approach 1:
The limiting and positioning functions are merged into a single integrated structure where the interfering bumps simultaneously perform both limiting (preventing over-insertion) and positioning (ensuring correct alignment) functions, eliminating the need for separate limiting and positioning components
Solution Approach 2:
The interference sidewalls serve multiple purposes: they provide retaining force, guide assembly during insertion, limit insertion depth, and ensure proper positioning, making the structure multi-functional while maintaining simplicity
Data Source
AI summary
A board end connector and a connector assembly. The board end connector comprises a board end insulating body, a terminal module, and a housing. The board end insulating body comprises a board end plugging surface and a plugging slot. The plugging slot is disposed on the board end plugging surface and comprises two interference sidewalls which are oppositely disposed. The terminal module is disposed in the board end insulating body. The housing is disposed on one side of the board end insulating body. A plugging bump member is provided on one side of the housing. The plugging bump member is disposed in the plugging slot. An interfering bump is provided on at least one side of the plugging bump member. The interfering bump interferes with at least one of the two interference sidewalls to increase the holding force between the housing and the board end insulating body.