Snap-Fit Cable Terminal With Independent Contact for Stable Connection

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Solution Overview

Problem

The use of fastening members like bolts for connecting cables to antennas can lead to degraded transmission and reception performance due to irregular contact resistance if the connector part is not accurately installed, necessitating manual inspection and complex re-fastening processes.

Innovation Solution

The electronic device incorporates a cable connector with a hook part that snaps and combines with a cable coupling part through elastic deformation, and a contact part that forms an electrical contact with the coupling part independently, ensuring stable electrical contact and simplifying the assembly process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a fastening member such as a bolt is used to connect the cable to the antenna, then the connection can be secured, but the transmission and reception performance may be degraded due to irregular contact resistance if the connector part is not accurately installed

Engineering Contradiction:
Improveconnection stabilityVSAvoidinstallation accuracy
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The connector part is divided into functionally independent elements: the hook part for mechanical fastening and the contact part for electrical connection. This segmentation allows each part to perform its specific function independently, so that mechanical attachment does not depend on precise alignment for electrical contact, thereby maintaining both connection stability and reducing installation accuracy requirements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The contact part utilizes the elastic force generated during the normal insertion process to automatically press against the cable coupling part and establish electrical contact. This self-service mechanism eliminates the need for additional fastening operations or precise manual alignment, as the connector self-adjusts to achieve reliable electrical connection upon insertion.

Inventive Principle:
Principle #25Self-service

2Reliability

If a bolt is used for fastening, then the cable connection can be maintained, but manual inspection and complicated dissembling and re-fastening processes are necessary upon installation failure

Engineering Contradiction:
Improveconnection stabilityVSAvoidassembly process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The elastic deformation mechanism provides self-locking functionality where the hook part automatically engages with the cable coupling part upon insertion, maintaining connection stability without requiring additional fastening steps. The same elastic force that secures the connection also enables simple release by applying opposite force, eliminating complex disassembly procedures.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The connector transitions from a static bolted connection to a dynamic elastic connection that can easily transition between engaged and disengaged states. The elastic properties allow the connector to flex during insertion and removal, providing a simple, reversible assembly process without permanent fastening or complex tools.

Inventive Principle:
Principle #15Dynamics

3Device complexity

If the contact part is integrated with the hook part, then the structure is simpler, but the electrical contact stability is compromised due to coupled deformation

Engineering Contradiction:
Improveconnector structureVSAvoidelectrical contact stability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The connector is segmented into the hook part for mechanical engagement and the contact part for electrical connection. This functional segmentation ensures that deformation of the hook part during insertion does not directly affect the contact part's positioning, allowing the contact part to maintain stable electrical contact through its own elastic deformation independent of the hook's mechanical fastening actions.

Inventive Principle:
Principle #1Segmentation

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

The cable connector maintains stable electrical contact and simplifies the assembly process by using elastic deformation to secure the connection, eliminating the need for manual inspection and complex re-fastening.

Implementation Method 1

a hook part (421) configured to snap and combine the connector part (420) with the cable coupling part (410) by being elastically deformed based on the connector part being inserted into the cable coupling part

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

a contact part (424) separated from the hook part (421) and configured to form an electrical contact with the cable coupling part (410) by pressurizing at least a part of the internal surface of the cable coupling part (410) by its elastic force

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentEP4287412B1Electronic device comprising cable terminal
Publication Date: 2025.09.17 SAMSUNG ELECTRONICS CO LTD
  • EP4287412B1 patent drawingFigure 1
  • EP4287412B1 patent drawingFigure 2
  • EP4287412B1 patent drawingFigure 3A

AI summary

Provided is an electronic device including a cable connector. The electronic device including a cable connector according to various embodiments of the disclosure may include a cable including a connector part connected to one end part thereof and delivering an electrical signal, and a cable coupling part including an opening and an internal surface configured to have the connector part of the cable inserted therein and combined therewith, the cable coupling part being electrically connected to the connector part. The connector part may include a hook part configured to snap and combine the connector part with the cable coupling part by being elastically deformed based on the connector part being inserted into the cable coupling part, and a contact part separated from the hook part and configured to form an electrical contact with the cable coupling part by pressurizing at least a part of the internal surface of the cable coupling part by its elastic force by being elastically deformed independently of the hook part based on the connector part being combined with the cable coupling part. In various embodiments, the hook part may be extended from the connector part and bent and formed in a direction opposite to a direction in which the connector part is combined with the cable coupling part. An angle of the bending may be set so that the hook part has an overlap with the internal surface of the cable coupling part, so that the hook part may elastically pressurize the internal surface of the cable coupling part.