Self-Locking Connector Structure for Secure Earphone Mounting

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Solution Overview

Problem

The challenge is to provide a reliable and convenient connection method for detachably mounting components like earphones on electronic apparatuses, as existing designs often result in components being easy to lose and inconvenient to carry.

Innovation Solution

A self-locking connection device featuring a housing with a sliding block and buckle, where the sliding block moves along an inclined wall to lock and unlock the buckle, allowing for easy mounting and removal of components by pushing the sliding block, utilizing elastic members for resetting and a self-locking mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a detachable connection structure is used to mount components like earphones on electronic apparatus, then the components can be easily removed and carried, but the components become easy to lose and the connection reliability deteriorates

Engineering Contradiction:
Improveease of removalVSAvoidconnection reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The connection device employs a dynamic locking mechanism where the sliding block moves along an inclined wall to transition between locked and unlocked states. The buckle dynamically adjusts its position along the inclined wall, automatically locking when the sliding block reaches the front end, and automatically unlocking when the sliding block returns to the initial position, achieving both ease of operation and connection reliability

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The device implements self-locking and self-unlocking functionality through the interaction between the sliding block and buckle. When the sliding block is pushed to the front end, the buckle automatically locks without additional user action. When the sliding block returns to the initial position, the buckle automatically unlocks and resets, eliminating the need for separate locking or unlocking operations

Inventive Principle:
Principle #25Self-service

2Reliability

If a self-locking mechanism is added to ensure secure mounting, then connection reliability is improved, but the device complexity increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking mechanism merges the sliding block and buckle into a single integrated system. The sliding block serves both as the actuating element and as part of the locking mechanism, while the buckle combines the locking function with the resetting function. This merging eliminates the need for separate locking and resetting components, achieving reliable self-locking without excessive complexity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The solution introduces an inclined wall that adds a dimensional element to the locking mechanism. The buckle moves along the inclined wall, converting linear motion into a combined linear and angular movement. This dimensional change enables automatic locking and unlocking through the geometric relationship between the inclined wall and the buckle, avoiding complex mechanical linkages

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 solution ensures secure mounting and easy removal of components like earphones on electronic devices, preventing loss and enhancing convenience through a simple push-action operation, applicable to various electronic apparatuses.

Implementation Method 1

a first elastic member is arranged between the buckle and the sliding block to deform in case that the buckle moves forward with the sliding block, and to generate a restoring force to push the buckle to reset after the sliding block is unlocked

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the second elastic member is arranged between the sliding block and the housing, the second elastic member is deformed in case that the sliding block is pushed to the front side, and the hook slides along the locking rail to the self-locking engaging portion and self-locks under the action of the second elastic member, and the hook is unlocked along the unlocking rail and reset under the action of the second elastic member

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12117031B2Self-locking connection device and electronic apparatus with self-locking connection device
Publication Date: 2024.10.15 GOERTEK INC
  • US12117031B2 patent drawing
  • US12117031B2 patent drawing
  • US12117031B2 patent drawing

AI summary

A self-locking connection device includes a housing, and a sliding block and a buckle, which are mounted in the housing. The sliding block slides back and forth along the housing and is locked in case that the sliding block is pushed to a front side, and is unlocked and reset in case that the sliding block is pushed to the front side again. An inclined wall for supporting the buckle is provided inside the housing, a height of the inclined wall gradually decreases from front to rear, the buckle is connected to the sliding block to move along the inclined wall with the sliding block, and the buckle is locked at a top end and protrudes out of the opening in case that the sliding block is locked at the front side.