Optical Disc Drive Tray Integration for Compact Design

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Solution Overview

Problem

Conventional slim-type disc drives for notebook computers have complex structures with separate pickup devices and main printed circuit boards, leading to restricted design specifications and increased manufacturing costs due to the need for compatibility with standard notebook computers.

Innovation Solution

The disc drive integrates a pickup device, spindle motor, and main circuit board directly onto the tray, reducing the number of components and manufacturing processes, and eliminates the need for a separate motor base, allowing for a more compact design and reduced signal loss between the pickup device and the main PCB.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the pickup device and main PCB are installed as separate structures on the tray, then the design complies with standard notebook computer specifications, but the device complexity increases and manufacturing costs increase

Engineering Contradiction:

Improvecompatibility with standard notebook computerVSAvoidstructure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the pickup device and main PCB into an integrated assembly that is installed as a single unit on the tray. This integration reduces the number of separate components and simplifies the overall structure while maintaining compatibility with standard notebook computer specifications through adherence to standardized dimensions and mounting interfaces.

Inventive Principle:

Principle #5Merging (Combining)

2Adaptability or versatility

If the pickup device and main PCB are installed as separate structures, then compatibility with standard specifications is maintained, but the number of manufacturing processes increases

Engineering Contradiction:

Improvecompatibility with standard notebook computerVSAvoidmanufacturing processes

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

By integrating the pickup device and main PCB into a single assembly, the patent reduces the number of discrete manufacturing steps. The integrated structure allows for streamlined production where the pickup device and main PCB are manufactured and assembled together as one unit, reducing the total number of manufacturing processes required while maintaining standard compatibility.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If the pickup device and main PCB are separate structures, then standard compatibility is achieved, but signal loss between components increases

Engineering Contradiction:

Improvecompatibility with standard notebook computerVSAvoidsignal transmission

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The integration of the pickup device and main PCB into a single assembly minimizes the physical distance between these components. This reduced separation distance decreases signal attenuation and interference, improving signal transmission reliability while still adhering to standard notebook computer compatibility requirements through standardized mounting configurations.

Inventive Principle:

Principle #5Merging (Combining)

4Adaptability or versatility

If separate structures are used for pickup device and main PCB, then standard specifications are met, but internal space utilization decreases

Engineering Contradiction:

Improvecompatibility with standard notebook computerVSAvoidinternal space

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

By combining the pickup device and main PCB into an integrated assembly, the patent reduces the total volume occupied by these components. The merged structure eliminates the need for separate mounting spaces and intermediate connections, optimizing internal space utilization within the standard notebook computer form factor while maintaining all required functionality.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS8930973B2Optical disc drive having pickup integrated with disc insertion tray

Publication Date: 2015.01.06 TS OPTICS CORP

AI summary

A disc drive including a tray, a housing configured to receive the tray, a pickup device installed on the tray, and a main circuit board installed on the tray and connected to the pickup device.