Electrical Connector Assembly With Compact Mis-Insertion Proofing
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Solution Overview
Problem
Existing electrical connector designs lack effective mis-insertion proof structures for applications with multiple connectors of similar appearances, particularly in compact configurations, leading to potential mis-mating issues.
Innovation Solution
The design incorporates a first electrical connector with mis-insertion proof connecting boards and ribs, and a second electrical connector with notches and avoiding openings, ensuring proper mating by utilizing spacing between terminal receiving posts and mating cavities without increasing connector size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protrusions of the complementary silos extend outwardly to provide mis-insertion proof structure, then mis-insertion proof capability is improved, but the size of the outer profile of the second electrical connector increases
Solution Approach 1:
The mis-insertion proof connecting board is nested within the opening formed between adjacent terminal receiving posts, utilizing the existing spatial configuration rather than adding external protrusions. The connecting board fits into the gap space already present in the connector structure, achieving mis-insertion prevention without increasing the overall outer profile dimensions.
Solution Approach 2:
Instead of adding mis-insertion proof structures in the radial direction (which would increase outer profile), the solution transitions to the axial dimension by extending the mis-insertion proof connecting board into the opening between terminal receiving posts. This dimensional shift allows mis-insertion prevention while maintaining a compact outer profile.
2Reliability
If multiple mis-insertion proof structures are added to handle complicated application circumstances, then mis-insertion proof capability is improved, but the device complexity increases
Solution Approach 1:
The mis-insertion proof connecting board serves multiple functions simultaneously: it provides mis-insertion prevention, connects adjacent terminal receiving posts, and utilizes the existing opening between posts for positioning. This multi-functionality reduces the need for separate dedicated mis-insertion proof components, thereby reducing overall device complexity while maintaining reliability.
Solution Approach 2:
The mis-insertion proof function is merged with the structural connecting function of the connecting board. Rather than having separate mis-insertion proof protrusions and connecting elements, the single connecting board performs both roles, simplifying the overall structure while achieving the desired mis-insertion prevention capability.
Data Source
AI summary
An electrical connector assembly, a first electrical connector and a second electrical connector are provided. The first electrical connector includes a first insulating body and conductive terminals. The first insulating body includes a mis-insertion proof connecting board and a mis-insertion proof rib. The second electrical connector includes a second insulating body and conductive terminals. The second insulating body includes a mis-insertion proof notch and mis-insertion proof avoiding openings. The mis-insertion proof connecting board is received in mis-insertion proof notch, the mis-insertion proof rib inserts into the mis-insertion proof avoiding opening, so that the electrical connector assembly includes two different mis-insertion proof structures.