Detachable Connector Locking Sequence for Stable Power Contact

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Solution Overview

Problem

Existing electronic devices with detachable units face issues where the units may become energized before complete fixation or remain energized during detachment, leading to potential electrical connection issues.

Innovation Solution

The device incorporates a lock mechanism that fixes the first unit to a socket, a connector holder shift mechanism, and a link mechanism to ensure complete fixation and secure electrical connection between units, with the connector contact established only after full fixation and released before detachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the connector is provided to enable electrical connection between detachable units, then the functionality and adaptability of the electronic device are improved, but the risk of premature energization or unintended disconnection increases

Engineering Contradiction:
Improvedetachable unit configurationVSAvoidelectrical connection stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The connector holder is positioned in advance within the socket, and the link mechanism is pre-configured to connect the locking action with the connector engagement sequence. This preliminary arrangement ensures that when the first unit is attached, the connector is ready to engage only after proper positioning, preventing premature energization while maintaining adaptability for various detachable configurations.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If a simple attachment structure is used to allow easy detachment of units, then the ease of operation is improved, but the precision of fixation and timing of electrical connection deteriorates

Engineering Contradiction:
Improveunit attachment and detachmentVSAvoidfixation completion timing
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The link mechanism acts as an intermediary between the simple attachment structure and the precision-required electrical connection timing. It translates the straightforward attachment motion into a precisely timed sequence where the connector engages only after complete fixation, and similarly ensures disconnection occurs before detachment. This intermediary mechanism maintains ease of operation while achieving precise connection timing.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If the connector remains engaged throughout the entire attachment and detachment process, then the electrical connection reliability is improved, but the risk of damage during improper attachment or detachment increases

Engineering Contradiction:
Improveelectrical connection continuityVSAvoidconnector damage risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The connector engagement state is made dynamic rather than static. The connector is engaged only during the period when the first unit is properly fixed to the second unit, and is automatically disengaged when the fixation is released. This dynamic control, achieved through the link mechanism that couples connector engagement with the locking state, maintains electrical connection reliability during proper use while protecting against damage during improper attachment or detachment operations.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20260037039A1Electronic device
Publication Date: 2026.02.05 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
  • US20260037039A1 patent drawing
  • US20260037039A1 patent drawing
  • US20260037039A1 patent drawing

AI summary

An electronic device includes a first connector that is provided in a first unit, a socket that is provided in a second unit, the first unit being attached and detached to the socket, a lock mechanism that fixes the first unit to the socket, a second connector that comes into contact with the first connector to be electrically connected, a connector holder that holds the second connector, a connector holder shift mechanism that shifts the connector holder, and a link mechanism that links the lock mechanism and the connector holder shift mechanism, the second connector coming into contact with the first connector after the fixing of the first unit to the socket is completed, and the second connector being separated from the first connector before the fixing of the first unit to the socket is released.