Flat Cable Connector Structure for Short-Circuit Isolation
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Solution Overview
Problem
Existing rotary connector devices face challenges in preventing short-circuiting between flat cables due to the movement of conductor exposure portions, which complicates the design and increases manufacturing costs.
Innovation Solution
A cable connector assembly is designed with a restriction portion that contacts the first flat cable to prevent the first conductor exposure portion from moving toward the second conductor exposure portion, thereby maintaining electrical insulation and preventing short-circuiting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two flat cables are stacked vertically with folded end portions inserted into slits to prevent short-circuiting, then electrical insulation is improved, but device complexity increases
Solution Approach 1:
The patent merges the insulation function into the connector body itself by providing a protrusion that extends into the cable stack. This single structural element simultaneously provides mechanical support and electrical insulation, eliminating the need for separate folded end portions and slits in the insulating base, thus reducing overall device complexity while maintaining insulation reliability
Solution Approach 2:
The invention extracts the insulation function from the insulating base and relocates it to the connector body. By taking out the insulation responsibility from the base structure and assigning it to the connector's protrusion element, the patent simplifies the cable assembly structure while ensuring electrical insulation between stacked cables
2Reliability
If folded end portions are inserted into slits in the insulating base to prevent short-circuiting, then electrical insulation is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines the insulation function with the connector body structure, creating a single integrated component. This merger eliminates the need for separate folded end portions and slits in the insulating base, reducing the number of parts and assembly steps, thereby lowering manufacturing cost while maintaining electrical insulation reliability
3Ease of operation
If conductor exposure portions are allowed to move freely, then ease of connection is improved, but short-circuiting risk increases
Solution Approach 1:
The patent applies preliminary anti-action by providing a protrusion in the connector body that pre-restricts the movement range of conductor exposure portions. This preliminary constraint prevents the conductors from moving into positions that would cause short-circuiting, while still allowing sufficient movement for easy connection, thus resolving the contradiction between ease of operation and short-circuit prevention
Data Source
AI summary
A cable connector assembly includes a cable connector, a first flat cable, and a second flat cable. The first flat cable includes a first conductor exposure portion. The second flat cable includes a second conductor exposure portion. The cable connector includes a restriction portion contactable with the first flat cable to restrict the first conductor exposure portion from moving toward the second conductor exposure portion in a first direction.