Connector Housing Screw Travel Limitation
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Solution Overview
Problem
ISOBUS plugs used in agriculture and truck sectors face issues with the screw connection between the front and rear housing parts loosening when inserted into sockets, leading to potential moisture ingress and contact problems due to incomplete sealing and misalignment of contacts.
Innovation Solution
A groove system is implemented on both housing parts with a slide mechanism that engages in the groove when fully screwed, limiting screw travel and ensuring alignment, and a locking mechanism secures the slide in place, preventing unintentional loosening and maintaining contact integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the screw connection between the front housing part and the rear housing part is used to secure the housing parts together, then the housing parts can be easily assembled and disassembled, but the screw connection can come loose when the plug is inserted into the socket
Solution Approach 1:
The groove is formed in advance on both the front housing part and the rear housing part, and the slide is pre-positioned within the housing. When the housing parts are screwed together, the slide automatically engages with the groove through the housing connection opening, limiting screw travel before the bayonet lock engagement. This preliminary positioning action prevents the screw connection from loosening during socket insertion while maintaining ease of assembly.
2Reliability
If the screw connection is completely tightened to ensure sealing, then the sealing integrity is improved, but the contacts may be misaligned or the seal may be damaged
Solution Approach 1:
The groove and slide mechanism perform a preliminary action by limiting screw travel before complete tightening. The slide engages with the groove at a predetermined position that maintains optimal contact alignment and prevents over-tightening. This preliminary positioning ensures that the sealing is sufficient while preventing damage to contacts or the seal that would occur with complete tightening.
Data Source
AI summary
A connector plug for insertion into a socket. The connector plug having a multipart housing comprising a front part and a rear part. The front part and the rear part are affixed to each other by means of being screwed together by a thread. The front part and the rear part a groove is formed respectively. The two grooves extend in axial direction at the outer circumference of the front part and the rear part and are aligned relative to each other when the front part and the rear part are screwed together completely. A slider can be housed by an adapter at the front part or the rear part whereby the slider has a crosspiece that engages with the groove and when the front part and the rear part are screwed together completely it can be displaced into a locked position.