Electronic Apparatus Housing With Segmented Side Wall Engagement

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Solution Overview

Problem

Conventional electronic apparatuses face challenges in reliably assembling and disassembling housing objects due to the ease of disengagement of engaging protrusions and holes under external forces, particularly with heavier objects, and firm fixing methods complicate disassembly processes.

Innovation Solution

The electronic apparatus employs a housing section with opposing side walls, a temporary holding member that aligns and fixes to one side wall, and a fixing member that aligns and fixes to the opposing side wall, using engaging protrusions and holes to securely hold the housing object while allowing for easy assembly and disassembly by alternating disengagement at different side walls.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If engaging protrusions and holes are used to fix the housing object, then assembly is simple, but the engagement easily becomes disengaged under external forces

Engineering Contradiction:
Improveassembly simplicityVSAvoidengagement stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The fixing structure is divided into multiple engaging protrusions and holes distributed at different positions (front, rear, left, right sides) on the housing section and fixing member. This segmentation distributes the load and prevents single-point failure, maintaining reliability while keeping each individual engagement simple

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple engaging protrusions and holes are combined to work together as a unified fixing system. The engagement of all these elements simultaneously creates a stable connection that resists external forces while maintaining the simplicity of the individual engagement mechanism

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If firm fixing is realized with pressing piece, then reliability of fixing is improved, but disassembly becomes difficult or time-consuming

Engineering Contradiction:
Improvefixing firmnessVSAvoiddisassembly ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The fixing member is designed with flexible portions that can elastically deform during assembly and disassembly. During assembly, the flexible portion bends to allow engagement; during disassembly, it bends in the opposite direction to release the engagement. This dynamic behavior provides firm fixing during operation while enabling easy disassembly when needed

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The physical state of the fixing member changes between assembly and disassembly modes through elastic deformation. The flexible portion transitions between different curvature states, allowing the same structure to provide both strong engagement during use and easy release during maintenance

Inventive Principle:
Principle #35Parameter changes

3Quantity of substance

If the mass of the housing object increases, then the housing object can hold more components, but the engagement becomes more prone to disengagement

Engineering Contradiction:
Improvehousing capacityVSAvoidengagement reliability
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The engagement system uses multiple distributed protrusions and holes instead of single large engagement points. This segmentation distributes the stress from heavier housing objects across multiple contact points, preventing any single engagement point from failing under increased load

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The housing section and fixing member are designed with integrated engaging structures that combine rigid engagement features with flexible portions. This composite approach provides both the strength needed for heavy objects and the elasticity needed to maintain reliable engagement

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS9807891B2Electronic apparatus
Publication Date: 2017.10.31 MITSUBISHI ELECTRIC MOBILITY CORP
  • US9807891B2 patent drawing
  • US9807891B2 patent drawing
  • US9807891B2 patent drawing

AI summary

An electronic apparatus includes a display module 3, a frame-like housing member 2, a temporary holding member 6, and a fixing member 4. The frame-like housing member 2 has side wall sections 2a-1 and 2a-2 opposing each other. The temporary holding member 6 is assembled to the frame-like housing member 2 by being engaged and aligned with the side wall section 2a-2 and by being engaged with and fixed to the side wall section 2a-1. The fixing member 4 is assembled to the frame-like housing member 2 by being engaged and aligned with the side wall section 2a-1 and by being engaged with and fixed to the side wall section 2a-2.