Plug Connector Holder Frame Snap-Fit Locking Mechanism
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Solution Overview
Problem
Conventional connector assemblies require complex assembly processes, involving screws, to securely attach a holding frame to a housing part, which complicates the connection and increases the risk of errors.
Innovation Solution
A locking device is integrated into the holding frame and housing part, allowing for a snap-fit mechanism or manual locking, eliminating the need for screws by using a locking element that engages in a form-fitting manner, providing a secure and adjustable connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a screw connection is used to attach the mounting frame to the housing part, then the connection strength is improved, but the assembly complexity increases
Solution Approach 1:
The patent replaces the screw connection system with a snap-fit locking mechanism. The mounting frame includes locking elements that engage with corresponding locking openings in the housing part, eliminating the need for screws and screwdrivers. This substitution maintains connection strength while significantly simplifying the assembly process to a single snap-fit action.
Solution Approach 2:
The locking elements are designed to automatically engage with the locking openings when the mounting frame is inserted into the housing part. The assembly process is self-completing through the snap-fit mechanism, which automatically secures the connection without requiring additional fastening operations or tools.
2Reliability
If a screw connection is used to attach the mounting frame to the housing part, then the connection reliability is improved, but the assembly time increases
Solution Approach 1:
The screw connection system is replaced with a snap-fit locking mechanism that achieves reliable connection in a single snapping motion. The locking elements engage automatically with the locking openings, eliminating the time-consuming process of screw insertion and tightening while maintaining connection reliability through the positive engagement of the locking mechanism.
Solution Approach 2:
The locking elements are pre-positioned on the mounting frame during manufacturing, ready to engage with the locking openings in the housing part. This preliminary preparation ensures that during assembly, the connection is established immediately upon insertion, without requiring additional steps for positioning or securing the fasteners.
3Reliability
If a locking element with transverse edge is used, then the locking reliability is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The transverse edge of the locking element is designed to automatically align with the locking opening during the insertion process. The geometry of the locking element and opening are configured so that the edge naturally finds its correct position as the mounting frame is inserted, eliminating the need for high-precision pre-alignment or complex adjustment mechanisms.
Solution Approach 2:
The locking element features an asymmetric transverse edge geometry that provides a unique engagement orientation with the locking opening. This asymmetric design ensures proper alignment through the insertion motion itself, where the edge engages the opening in a specific orientation that provides reliable locking while tolerating reasonable manufacturing variations.
Data Source
Figure 1
Figure 2~3
Figure 4A~5B
AI summary
An assembly of a plug connector part comprises a holder frame (1) for receiving at least one modular contact insert (2), wherein the holder frame (1) surrounds an opening (100) in which at least one contact insert (20) can be inserted, and a housing part (3) which has a receiving opening (300) in which the holder frame (1) can be inserted in an insertion direction (E) and a support segment (305) on which the holder frame (1) is supported in an inserted position in the receiving opening (300). According to the invention, the housing part (3) has a locking opening (30) and the holder frame (1) has a locking unit (4) for locking the holder frame (1) to the housing part (3) in the inserted position, wherein the locking unit (4) has a locking element (41) which, in a locked position, interlockingly engages in the locking opening (30) of the housing part (3). In this way, an assembly of a plug connector part is provided, which can facilitate the connection of a holder frame to a housing part.