Board Connector Mounting Recesses Prevent Enlargement
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Solution Overview
Problem
Existing board connectors with thick wing-like parts projecting out from the connector body lead to enlargement, compromising their size and potentially their structural integrity and assembly efficiency.
Innovation Solution
A board connector design featuring a rectangular tube receptacle with mounting recesses within the wall thickness of the side or bottom walls, allowing for balanced fixing member placement without enlarging the connector, and incorporating erroneous connection prevention mechanisms to ensure proper assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thick wing-like parts project out from the widthwise end parts of the connector body to mount locking members, then the connector can be fixed to the circuit board, but the entire connector is enlarged
Solution Approach 1:
The patent moves the mounting recesses from the external wing-like projections (width direction) to the internal wall thickness of the side walls (depth direction). This dimensional shift allows fixing members to be mounted within the existing connector body boundaries, preventing width enlargement while maintaining fixing capability through the side wall recesses that receive the fixing members internally.
2Length of stationary object
If mounting recesses are formed within the wall thickness of the side wall, then the connector size is not enlarged, but the wall thickness is reduced which may affect structural strength
Solution Approach 1:
The patent applies local quality by creating mounting recesses only in specific locations within the side wall thickness where fixing members need to be mounted, rather than uniformly thinning the entire side wall. The recesses are localized cavities that accommodate fixing members while preserving the overall wall thickness and structural integrity in other critical areas of the side wall.
3Ease of operation
If the mounting recess is open toward the back wall, then the inserting direction of the fixing member and terminal fitting can be the same, but the fixing member structure becomes more complex
Solution Approach 1:
The patent segments the fixing member into distinct functional parts: an inserting piece that fits into the mounting recess and a fixing piece that extends toward the circuit board. This segmentation allows the fixing member to be inserted through the side wall opening in the same direction as terminal fittings while maintaining a relatively simple overall structure, as each segment performs its specific function independently.
Data Source
AI summary
A board connector (10) includes a receptacle (20) fittable to a mating connector and fixing members (60) for fixing the receptacle (20) to a circuit board (90). The receptacle (20) is in the form of a rectangular tube and has a pair of side walls (21) facing each other in a width direction and a bottom wall (22) and a ceiling wall (23) facing each other in a height direction. At least either the side walls (21) or the bottom wall (22) include(s) mounting recesses (31) for mounting the fixing members (60) within a wall thickness between an inner side surface and an outer side surface of the receptacle (20).