Rotatable Snap-Fit Housing Trim for Fast Wearable Disassembly

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Solution Overview

Problem

The disassembly procedure of decoration components in wearable devices is time-consuming and labor-intensive, and detachable decoration components often lack a rotation function, leading to poor user experience and difficulty in replacing or disassembling them.

Innovation Solution

A housing design featuring a disassembly component with a first elastic portion and a decoration component that snap-fit together, allowing for quick assembly and disassembly, with the decoration component capable of rotating relative to the middle frame component, ensuring secure attachment and easy detachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the decoration component is made detachable, then it can be replaced and customized, but the disassembly procedure becomes time-consuming and labor-intensive

Engineering Contradiction:
Improvereplacement and customization capabilityVSAvoiddisassembly time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The decoration component is divided into multiple detachable parts including a decoration inner ring, decoration outer ring, and buffer, allowing selective assembly and disassembly of different components without requiring complete disassembly of the entire structure

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A disassembly component with elastic portions acts as an intermediary tool that facilitates quick release of the snap-fit connection between the decoration component and middle frame component, reducing the time and effort required for disassembly

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the decoration component is made detachable, then it can be replaced, but the disassembly procedure becomes labor-intensive

Engineering Contradiction:
Improvereplacement capabilityVSAvoiddisassembly effort
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The disassembly component serves as a mechanical intermediary that leverages elastic energy storage and release to automatically break the snap-fit connection, converting manual effort into efficient disassembly action and reducing user labor

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The elastic portions of the disassembly component dynamically change their mechanical state during assembly and disassembly operations, using elastic deformation to store and release energy, thereby reducing the continuous manual force required from the user

Inventive Principle:
Principle #15Dynamics

3Device complexity

If the decoration component lacks rotation function, then the structure is simpler, but user experience deteriorates due to poor rotation feel

Engineering Contradiction:
Improvestructural simplicityVSAvoidrotation feel
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The decoration component is designed to rotate dynamically around the middle frame component's central axis while maintaining a relatively simple overall structure, providing rotational freedom without requiring complex mechanical mechanisms

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The snap-fit connection is pre-configured to allow rotational movement within the connected state, enabling the rotation function to be achieved without additional complex mechanisms while maintaining structural simplicity

Inventive Principle:
Principle #10Preliminary action

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 quick and convenient disassembly of decoration components, enhances user experience through tactile feedback during rotation, and allows for personalized replacement, improving installation efficiency and user satisfaction.

Implementation Method 1

the first elastic portion is in a second state, the second snap-fit portion is separated from the first snap-fit portion

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP4697103A1Housing, decoration component and electronic device
Publication Date: 2026.02.18 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • EP4697103A1 patent drawingFigure 1~3
  • EP4697103A1 patent drawingFigure 4~6
  • EP4697103A1 patent drawingFigure 7~9

AI summary

The present invention is related to a housing, a decoration component and an electronic device. The housing includes a decoration component, a middle frame component and a disassembly component installed in the middle frame component. The disassembly component includes a first body and a first snap-fit portion and a first elastic portion. The decoration component includes a second snap-fit portion. When the first elastic portion is in a first state, the second snap-fit portion is snap-fit connected with the first snap-fit portion to limit movement of the decoration component and the disassembly component in a radial direction of the middle frame component, and the decoration component is capable of moving relative to the disassembly component in a circumferential direction of the middle frame component. When the first elastic portion is in a second state, the second snap-fit portion is separated from the first snap-fit portion.