Detachable Connector Locking for Vibration-Stable Electrical Contact

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Solution Overview

Problem

Existing electronic devices with detachable units face disconnection issues due to vibrations, particularly in severe environments, leading to momentary separation of connectors.

Innovation Solution

An electronic device with a lock mechanism that maintains contact between detachable units by using a lock shaft with a hook part to pull the first unit into the socket, ensuring firm engagement and preventing disconnection during vibrations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a detachable connection structure is used between the first unit and second unit, then ease of operation is improved, but reliability deteriorates due to vibration-induced disconnection

Engineering Contradiction:
Improvedetachable attachmentVSAvoidelectrical connection stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The connection system is divided into separate components: a connector in the first unit, a socket in the second unit, and a lock mechanism. This segmentation allows the units to be easily attached and detached while the lock mechanism provides separate securing functionality to maintain reliability during vibration.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The lock mechanism performs a preliminary locking action when the units are attached, pulling the first unit into the socket and securing it before vibration occurs. This preliminary securing prevents vibration-induced disconnection while maintaining ease of operation through deliberate attachment and detachment actions.

Inventive Principle:
Principle #10Preliminary action

2Device complexity

If a simple connector structure is used, then device complexity is reduced, but reliability worsens due to disconnection under vibration

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

Solution Approach 1:

The lock mechanism combines multiple functions: it secures the first unit to the socket, maintains electrical connection stability, and prevents disconnection during vibration. This merging of functions into a single mechanism provides reliable connection without significantly increasing overall device complexity.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If the first unit is loosely attached to the socket, then ease of operation is improved, but reliability deteriorates due to momentary separation under vibration

Engineering Contradiction:
Improveattachment easeVSAvoidcontact maintenance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The lock mechanism automatically pulls the first unit into the socket and maintains contact when engaged, providing self-service securing without requiring additional user actions during vibration. The user simply attaches and detaches deliberately, while the lock mechanism handles the securing and contact maintenance automatically.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12560977B2Electronic device
Publication Date: 2026.02.24 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
  • US12560977B2 patent drawing
  • US12560977B2 patent drawing
  • US12560977B2 patent drawing

AI summary

An electronic device is an electronic device including a first unit and a second unit that are detachably attached to each other, and includes a first connector that is provided in the first unit, a socket that is provided in the second unit, the first unit being attached to and detached from the socket in a first direction, a second connector that is provided in the socket, the second connector coming into contact with the first connector in the first direction to be electrically connected, and a lock mechanism that is provided in the socket, the lock mechanism pulling the first unit into a back of the socket in the first direction to maintain contact between the first unit and the socket.