Integrated Housing Connector Suppressing Circuit Board Deformation
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Solution Overview
Problem
In electronic circuit units, the relative displacement of case members due to bending forces can cause external forces to act on the circuit board, leading to potential damage.
Innovation Solution
A connector design with a housing that integrates terminal holding portions with the board accommodating portion, reducing external forces on the circuit board by suppressing deformation through the rigidity of the housing, and featuring a slit-like board insertion opening and resilient contact pieces to guide terminal fittings without butting against the circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the case is composed of two separate case members, then the structure is easier to manufacture and assemble, but the relative displacement of case members under bending force causes external forces to act on the circuit board
Solution Approach 1:
The patent merges the first and second case members into a single integrated housing structure. The housing includes a first case member and a second case member that are unified into one piece, eliminating the interface between separate components. This integration prevents relative displacement under bending forces, thereby eliminating the harmful effect of external forces being transmitted to the circuit board while maintaining manufacturing feasibility through integral molding techniques.
2Ease of manufacture
If terminal holding portions are separate from the board accommodating portion, then assembly is simpler, but deformation occurs when external forces tilt the terminal holding portions
Solution Approach 1:
The patent integrates the terminal holding portions with the board accommodating portion into a unified housing structure. The terminal holding portions are formed as integral parts of the housing, specifically as protrusions from the first and second case members. This merging eliminates the need for separate assembly steps while providing rigid structural support that prevents deformation when external forces are applied, thereby simultaneously achieving ease of manufacture and structural stability.
3Object-affected harmful factors
If the housing is made more rigid to suppress deformation, then external forces on the circuit board are reduced, but the board insertion opening becomes more difficult to access
Solution Approach 1:
The patent applies local quality by creating a slit-like board insertion opening in the housing that provides adequate access for board installation. The opening is positioned and dimensioned to allow easy insertion while maintaining the overall rigidity of the housing structure. The housing's rigid construction suppresses deformation under external forces, and the strategically designed opening ensures ease of operation without compromising structural integrity.
Data Source
AI summary
It is aimed to reduce an external force acting on a circuit board. A connector (10) is provided with a housing (12) including a board accommodating portion (13), a circuit board (42) accommodated in the board accommodating portion (13), a first terminal holding portion (26) formed in the housing (12) to be integrated with the board accommodating portion (13), a second terminal holding portion (30) formed in the housing (12) to be integrated with the board accommodating portion (13) and second terminal fittings (52) connected to the circuit board (42) while being held in the second terminal holding portion (30).


