Rotating Locking Assembly for Tool-Free Electronic Device Casing

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Solution Overview

Problem

Existing electronic devices require tools like screwdrivers to detach battery casings, making it inconvenient when tools are not available.

Innovation Solution

A locking assembly with a connection member and rotatable locking member that engages a slot, allowing the casing to be easily connected or detached from a support using a tool like a screwdriver or coin, utilizing a spring and connection ring for secure engagement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If screws are used to hold the casing in position, then the connection strength is improved, but the ease of operation deteriorates because a tool like a screwdriver is required for detachment

Engineering Contradiction:
Improveconnection strengthVSAvoidease of detachment
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The locking member is designed to rotate between a locked position (engaging the slot to secure the casing) and an unlocked position (disengaging the slot to allow removal). This dynamic transformation enables the same component to provide both strong connection and easy detachment, resolving the contradiction between connection strength and ease of operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The spring provides automatic locking engagement when the locking member rotates into the slot, and automatic release when rotated out. The elastic force of the spring maintains continuous pressure on the connection member, enabling the system to self-maintain the locked state without additional fastening operations, while still allowing tool-assisted release.

Inventive Principle:
Principle #25Self-service

2Ease of operation

If a locking mechanism with rotatable locking member is used, then the ease of operation is improved, but the device complexity increases due to additional components

Engineering Contradiction:
Improveease of detachmentVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The locking member is integrated with the connection member as a single assembly, where the locking member rotates together with the connection member. This merging reduces the number of independent components and simplifies the overall structure while maintaining the ease of operation benefit.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The connection member serves dual functions: it provides the mechanical connection between casing and support, and it acts as the rotating element that controls the locking member's engagement with the slot. This multi-functionality reduces the need for separate components, thereby reducing device complexity while maintaining ease of operation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enables convenient and tool-independent detachment and attachment of the casing to the support, enhancing user accessibility and usability.

Implementation Method 1

a spring (43) arranged around the connection member (41)

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS10085356B2Electronic device with locking assembly
Publication Date: 2018.09.25 UBTECH ROBOTICS CORP LTD
  • US10085356B2 patent drawing
  • US10085356B2 patent drawing
  • US10085356B2 patent drawing

AI summary

An electronic device includes: a support defining a slot, a casing defining a receiving hole, and a locking assembly for detachably connecting the casing to the support. The locking assembly includes a connection member received in the receiving hole and a locking member connected to and rotatable together with the connection member. The locking member is rotatable to a position where the locking member engages the slot, thereby fixing the casing to the support.