Light Scanning Device Housing Support Wall Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional light scanning device housings face challenges in achieving both strength and resin fluidity during molding, particularly due to the vertical denting of the motor fixation surface, which affects the structural integrity and manufacturing process.
Innovation Solution
The housing design incorporates a support wall with a first surface, a second surface fixed perpendicularly to the first, and inclined connection surfaces forming obtuse angles, enhancing structural robustness and resin flow during injection molding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the support wall surface is vertically dented to increase strength, then the housing strength is improved, but the resin fluidity during molding deteriorates
Solution Approach 1:
The invention transitions from a vertical dent configuration to an inclined surface configuration. Instead of creating a vertical cavity that impedes resin flow, the support wall is designed with inclined surfaces that guide resin flow along the molding direction while still providing structural reinforcement. This dimensional change in the support wall geometry resolves the contradiction between strength enhancement and manufacturability.
2Strength
If the support wall is made thicker to increase strength, then the housing strength is improved, but the molding cycle time increases and productivity decreases
Solution Approach 1:
The invention applies local reinforcement through inclined surfaces at critical stress points rather than uniformly thickening the entire support wall. The inclined surfaces are strategically positioned to provide structural strength where needed while maintaining thinner sections in non-critical areas, allowing resin to flow through the mold cavity more quickly and reducing overall molding cycle time.
Data Source
AI summary
A light scanning device includes: a light source configured to emit a light beam; a deflector configured to deflect and scan the light beam from the light source in a main scanning direction; a driving source that drives the deflector; and a housing including a support wall to which the driving source is fixed. The support wall has a first surface, a second surface to which the driving source is fixed and that is deviated with respect to the first surface in a direction perpendicular to the first surface, and a third surface that connects the first surface and the second surface and is inclined to form obtuse angles relative to the first surface and the second surface.