Shielded Cable Connector Structure Without Resin Housing
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Solution Overview
Problem
Conventional connectors for shielded cables require a resin housing, making them difficult to manufacture.
Innovation Solution
A connector design that electrically connects a shield member to a mounting object using a metal pipe and a metal fixing member, eliminating the need for a resin molded article by passing the core wire and insulation coating through the metal pipe and fixing it to the mounting object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a resin housing is used in the connector, then the connector structure is complete and functional, but the manufacturing process becomes complex and difficult
Solution Approach 1:
The invention extracts and removes the resin housing component from the connector structure, replacing it with a simplified metal shell and metal band assembly. This elimination of the resin molded article directly addresses the manufacturing complexity issue while maintaining the connector's functional integrity through the metal components alone
Solution Approach 2:
The invention changes the material parameter from resin to metal for the housing components. By substituting the resin housing with metal shell and metal band elements, the patent transforms the manufacturing approach from complex resin molding to simpler metal fabrication and assembly processes
2Productivity
If a resin molded article is required for the connector, then the connector can be assembled, but the manufacturing process becomes more difficult and time-consuming
Solution Approach 1:
The invention extracts and eliminates the resin housing from the connector assembly, replacing it with metal components that can be manufactured and assembled more efficiently. This removal of the resin molding step directly improves productivity by reducing manufacturing工序 and cycle time
Solution Approach 2:
The connector is segmented into distinct metal components (metal shell, metal band, insulation coating) that can be manufactured separately and assembled quickly. This segmentation eliminates the need for complex resin molding and allows for parallel manufacturing processes, thereby improving overall productivity
3Reliability
If conventional connector design with resin housing is used, then the structure is stable, but the manufacturing cost and complexity increase
Solution Approach 1:
The invention changes the material parameter from resin to metal for the housing components. By substituting the resin housing with metal shell and metal band elements, the patent transforms the manufacturing approach from complex resin molding to simpler metal fabrication processes while maintaining structural stability and reliability
Solution Approach 2:
The invention uses composite construction with metal shell, metal band, and insulation coating working together to achieve the same structural stability previously provided by resin alone. This composite approach maintains reliability while enabling easier manufacturing through the use of metal components
Data Source
AI summary
A connector (30) electrically connects a shield member to a mounting object by being fixed to an end part of a shielded cable (20) including a core wire (23), an insulation coating (24) covering an outer periphery of the core wire and the shield member (22) for covering an outer periphery of the insulation coating and fixed to the mounting object. The connector includes a metal pipe (31), through which the core wire and the insulation coating are passed and to which the shield member is connected, and a metal fixing member (32) to be fixed to an outer peripheral surface of the metal pipe and fixed to the mounting object.