Board Connector Locking Portion Prevents Forward Tilting
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Solution Overview
Problem
Existing board connectors with waterproof specifications tend to tilt forward and detach from circuit boards due to interference between tubular fittings and the circuit board, leading to instability during mounting.
Innovation Solution
A board connector design featuring a housing with a locking portion that restricts forward tilting displacement by being locked to the circuit board, with terminal fittings and fixing brackets soldered in place, and side walls that absorb dimensional errors through resilient deformation, ensuring stable placement and connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a tubular fitting is externally fit to the receptacle for waterproofing, then waterproof performance is improved, but the receptacle must project outward which causes forward tilting and detachment
Solution Approach 1:
The locking portion extends in the lateral direction (width dimension) rather than requiring the receptacle to project in the front direction. This dimensional shift allows the connector to achieve both waterproofing and stable placement without forward tilting.
Solution Approach 2:
The housing is divided into functional sections: the receptacle for electrical connection, the locking portion for mechanical stability, and the tubular fitting for waterproofing. This segmentation allows each component to perform its specific function without interfering with others.
2Adaptability or versatility
If the receptacle projects outward to accommodate the tubular fitting, then waterproof configuration is achieved, but the board connector tilts forward and detaches from the circuit board
Solution Approach 1:
Instead of projecting the receptacle in the front direction, the locking portion utilizes the lateral dimension by extending from the side wall of the housing to engage with the circuit board, achieving stability without forward projection.
Solution Approach 2:
The locking portion acts as an intermediary element between the housing and the circuit board, providing mechanical engagement that prevents tilting while allowing the receptacle to maintain its waterproof configuration.
3Stability of the object's composition
If the locking portion is disposed on the rear part of the housing, then forward tilting is restricted, but dimensional errors of the circuit board and housing cannot be absorbed
Solution Approach 1:
The resilient supporting portion acts as a flexible element that can elastically deform to absorb dimensional variations between the housing and circuit board, while the locking portion maintains its position to prevent tilting.
Solution Approach 2:
The resilient supporting portion provides dynamic adjustment capability, allowing the locking portion to maintain stable engagement with the circuit board despite manufacturing tolerances through elastic 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
The solution provides stable and reliable connection of terminal fittings and fixing brackets to the circuit board, preventing tilting and ensuring secure soldering, even with variations in dimensional tolerances, while maintaining a waterproof configuration.
Implementation Method 1
the locking portion is formed on a lower end part of the leg. Dimensional errors of the circuit board and the housing can be absorbed by resilient deformation of the resilient supporting portion.
Implementation Method 2
The board connector and the circuit board then are passed through a reflow furnace and solder on the circuit board is melted under a high-temperature environment so that the terminal fittings are fixed to the circuit board.
Data Source
AI summary
A board connector (A) has a housing (10) placed on a circuit board (P). The board connector (A) includes a terminal holding portion (11) and a receptacle (13) extending forward from an outer peripheral edge of the terminal holding portion (11). Terminal fittings (25, 26) are mounted while penetrating through the terminal holding portion (11) and are connectable to the circuit board (P) while being placed on the circuit board (P) behind the terminal holding portion (11). Locks (19) are formed on the housing (10) and restrict a forward tiling displacement of the housing (10) by being locked to the circuit board (P).