Connector Socket Housing Groove Design for Rotation Prevention
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Solution Overview
Problem
Existing connectors fail to properly fix socket contacts to socket housings, leading to unstable contact conditions and unwanted loads, which can cause improper soldering and increased wear due to rotational movement.
Innovation Solution
The connector design incorporates a socket housing with facing retention grooves and guiding grooves to prevent rotation, a slot for increased insert length without housing size increase, and rack stoppers for firm fixation, along with guide and retention projections to secure the socket contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the socket contact is designed to sandwich the header contact with elastic deformation, then the contact reliability is improved, but the socket contact can rotate around the direction perpendicular to the lengthwise walls causing unstable contact condition
Solution Approach 1:
The socket housing is divided into functional sections with guiding grooves and retention grooves that separately control different aspects of socket contact positioning. The guiding grooves prevent rotation while the retention grooves maintain elastic deformation, segmenting the constraint functions to solve both reliability and stability requirements simultaneously.
Solution Approach 2:
The guiding grooves act as intermediary structures between the socket contact and the external environment, mediating the rotational movement by providing a constrained path that allows insertion while preventing rotation, thus maintaining both contact reliability and stability.
2Volume of moving object
If the socket housing is made compact, then the device size is reduced, but the insert length of the header contact is limited
Solution Approach 1:
The slot is designed to extend in the insert direction (one dimension) while the housing remains compact in other dimensions. This dimensional differentiation allows the insert length to be increased without proportionally increasing the overall housing volume, resolving the contradiction between compact size and sufficient insert length.
3Ease of operation
If the socket contact is allowed to move freely during insertion, then the ease of operation is improved, but unwanted load is added to the contact causing increased wear
Solution Approach 1:
The guiding grooves are pre-formed in the socket housing to provide a predetermined insertion path. This preliminary structural arrangement guides the socket contact during insertion, preventing unwanted lateral movements and reducing harmful loads before they can occur, while still allowing smooth insertion operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design effectively prevents socket contact rotation, enhances connection reliability, reduces handling force, and prevents wear by ensuring stable contact and secure fixation, while allowing for compact housing without size reduction.
Implementation Method 1
each resilient contact section 171 is elastically deformed to sandwich a corresponding contact 12 between both ends of the section 171 to come in contact therewith, while adding restoring force of the elastic deformation
Data Source
AI summary
A connector comprising a header connector 20 and a socket connector 25. The connector 25 includes a fixed section 272 that is continuously formed at the tip of one end 2711 of a contact section 271 so that a part 2721 of the section 272 is arranged in parallel with the one end. A housing 26 of the connector 25 sandwiches and retains both sides of the part 2721 between a pair of facing retention grooves, and also sandwiches and receives both sides of the one end 2711 between a pair of facing guiding grooves so that the one end 2711 can move only along facing surfaces including the above each groove.