Optical Disc Drive Damper Positioning Structure
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Solution Overview
Problem
Conventional half-height optical disc drives face issues with vibration-induced errors and noise due to the traverse's vibrations, and the use of screws to secure dampers increases material and labor costs.
Innovation Solution
A damper positioning structure that replaces screws with a bent element on the top cover and a positioning pillar on the chassis, allowing the top cover to press against the damper when assembled, thereby securing the traverse without the need for screws.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to secure dampers to the chassis, then the dampers can be firmly fixed to absorb vibrations, but material cost and labor cost increase
Solution Approach 1:
The invention extracts and eliminates the screw fastening mechanism from the assembly. The damper is redesigned with an integrated positioning structure that directly engages with the chassis, removing the need for separate screws and simplifying the assembly process while maintaining secure attachment
Solution Approach 2:
The positioning hole and securing function are merged into an integrated structure where the damper's positioning hole directly receives and secures the positioning pillar from the chassis. This combines the fastening function that previously required separate screws into the damper's own structure
2Reliability
If screws are used to fasten dampers, then secure attachment is achieved, but assembly time increases and production efficiency decreases
Solution Approach 1:
The assembly process is segmented into simpler steps where the damper is directly positioned and secured through the integrated positioning hole and pillar interface, eliminating the additional step of screw fastening and reducing overall assembly time
Solution Approach 2:
The damper structure is designed to be self-securing through its positioning hole that directly engages with the positioning pillar on the chassis. The structure serves its own fastening function without requiring external screw fasteners, enabling faster assembly
3Reliability
If conventional damper mounting with screws is used, then dampers can be secured, but assembly variations increase
Solution Approach 1:
The positioning hole in the damper and positioning pillar on the chassis are designed with precise local geometries that ensure accurate alignment and positioning. This localized precision fitting reduces assembly variations by providing a dedicated, precisely-matched interface between components
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
This solution reduces production costs, minimizes assembly variations, and enhances production efficiency by eliminating the need for screws, while maintaining effective vibration absorption and noise reduction.
Implementation Method 1
the dampers to absorb the vibration energy of the traverse
Data Source
AI summary
The present invention provides an optical disc drive and a damper positioning structure thereof. The optical disc drive includes a top cover, a traverse, and a chassis, and the damper positioning structure comprising: a bent element provided on the top cover and having an extension portion and a fixing portion, wherein the fixing portion has a through hole; a positioning pillar provided on the chassis; and a damper for supporting and securing the traverse on the chassis, wherein the damper has a positioning hole through which the positioning pillar is insertable; wherein, when the top cover is assembled to the chassis, the positioning pillar passes through the through hole of the fixing portion, and the fixing portion presses against the damper.