Light Guide Bar Connector Assembly Positioning

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Solution Overview

Problem

Current methods for fixing components onto a main board, such as screw tightening, adhesion, and hot riveting, are inefficient and can lead to connector cracking when heavy memory modules are inserted, especially when space is limited and precise positioning is difficult.

Innovation Solution

A light guide bar is designed to be easily fixed between two connectors using positioning protrusions and recesses, allowing for secure engagement and alignment while also guiding light for indication and decoration, and providing a counterforce to prevent connector cracking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If screw tightening is used to fix components, then the connection strength is improved, but the manufacturing complexity increases due to requiring screw holes and through holes

Engineering Contradiction:
Improveconnection strengthVSAvoidmanufacturing complexity
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The connector is divided into an upper connector and a lower connector, with the light guide bar positioned between them. Each connector has positioning protrusions that engage with positioning recesses on the light guide bar, creating modular segments that are easier to manufacture than a single integrated structure requiring multiple screw holes

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The light guide bar serves as an intermediary component between the upper and lower connectors. It not only guides light but also acts as a positioning element with recesses that receive protrusions from the connectors, providing mechanical connection without requiring traditional screw fastening

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of manufacture

If adhesion is used to fix components, then the manufacturing process is simplified, but the positioning precision deteriorates and adhesive overflow may occur

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidpositioning precision
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

Positioning protrusions and recesses are pre-formed on the connectors and light guide bar during manufacturing. These features are created in advance to ensure precise positioning before assembly, eliminating the need for adhesive and preventing positioning errors that would occur with adhesive-based methods

Inventive Principle:
Principle #10Preliminary action

3Strength

If hot riveting is used to fix components, then the connection strength is improved, but the fabrication complexity increases due to heating and deformation requirements

Engineering Contradiction:
Improveconnection strengthVSAvoidfabrication complexity
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The mechanical connection system using positioning protrusions and recesses replaces the thermal-mechanical system of hot riveting. The engagement of these features provides sufficient connection strength through precise geometric fit rather than heat-induced deformation, eliminating the need for heating equipment and complex fabrication processes

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Quantity of substance

If heavy memory modules are inserted into connectors, then the storage capacity is improved, but the connector may crack due to excessive weight

Engineering Contradiction:
Improvestorage capacityVSAvoidconnector integrity
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The light guide bar provides localized support between the upper and lower connectors. By positioning it strategically between the connectors, it offers local reinforcement that distributes the load from heavy memory modules, preventing stress concentration that would cause connector cracking while allowing high-capacity modules to be used

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS10125929B2Light guide bar and connector assembly
Publication Date: 2018.11.13 GIGA BYTE TECH CO LTD
  • US10125929B2 patent drawing
  • US10125929B2 patent drawing
  • US10125929B2 patent drawing

AI summary

A light guide bar adapted to be interleaved between two connectors which are disposed on a main board. Each of the connectors has a connector lateral wall. At least one connector includes a positioning protrusion. The light guide bar includes a body. The body includes two opposite light guide bar lateral walls and at least one positioning recess. Each positioning recess is formed on one of the light guide bar lateral walls. The at least one positioning recess is adapted to be positioned on the positioning protrusion of the at least one connector. A connector assembly having the light guide bar and the two connectors is further provided.