Multi-Pole Plug-In Connector Assembly for Line-Side Contact Insertion
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Solution Overview
Problem
The existing multipole electrical plug-in connectors face difficulties in efficiently inserting contact elements from the connection line side due to accessibility issues and the complexity of threading connection lines through the housing base, especially in connectors with a large number of contact elements and long connection lines.
Innovation Solution
The solution involves a multipole electrical plug-in connector design with a mounting block that includes a plate and a transverse slider, where the contact elements have a retaining portion between the press-in and connection portions, allowing inter-locking fastening in the mounting block, enabling insertion from the connection line side and reducing the need to thread connection lines through the housing base.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If contact elements are pressed into insertion openings from the connection line side, then threading connection lines through insertion openings is avoided, but accessibility of the housing base by a tool becomes more difficult
Solution Approach 1:
The housing base is segmented into multiple insertion openings arranged in a pattern that provides access from the connection line side. Each insertion opening is independently accessible, allowing tools to reach the housing base without interference from other components or previously inserted contact elements.
Solution Approach 2:
The insertion openings are arranged in a three-dimensional pattern on the housing base, utilizing multiple dimensions of access. This spatial arrangement allows tools to approach contact elements from the connection line side at various angles, overcoming the limitation of linear access and improving tool accessibility despite the housing base's location.
2Ease of operation
If contact elements are pressed into insertion openings from the insertion side, then accessibility of the housing base is improved, but connection lines must be threaded into and pulled through insertion openings which is cumbersome and time-consuming
Solution Approach 1:
The conventional insertion direction is inverted. Instead of inserting contact elements from the insertion side where connection lines would need to be threaded through, the design enables insertion from the connection line side. This inversion eliminates the time-consuming threading operation while the segmented housing base structure maintains adequate tool accessibility.
3Adaptability or versatility
If the plug-in connector has a multipole design with a large number of contact elements, then functionality is improved, but insertion of contact elements from the connection line side becomes increasingly difficult due to tool access and connection line density
Solution Approach 1:
The housing base is segmented into multiple independently accessible insertion openings distributed across different regions. This segmentation allows tools to access multiple contact elements simultaneously or in sequence without interference, enabling efficient assembly of multipole connectors with many contact elements from the connection line side.
Solution Approach 2:
The housing base structure provides universal access patterns that work for connectors with varying numbers of contact elements. The segmented design with multiple access points creates a scalable solution that maintains tool accessibility whether the connector has few or many contact elements, supporting multipole designs of different configurations.
Data Source
AI summary
A multipole electrical plug-in connector includes a plug-in connector housing and a mounting block. The plug-in connector housing has a housing base that extends perpendicular to a longitudinal axis of the plug-in connector housing. The housing base has insertion openings. Contact elements are respectively inserted through the housing base insertion openings. Each contact element has a contact portion that is connectable to a mating plug-in connector, a press-in portion, with a fir tree profile, that is pressed into the housing base insertion opening in which the contact element is inserted through, and a connection portion for connecting an electrical connection line. Each contact element further has a retaining portion between the press-in portion and the connection portion. The retaining portions of the contact elements are inter-lockingly fastened in the mounting block. A method for producing a multipole electrical plug-in connector of this type is provided.