Optical Scanner Housing Fixing Mechanism Thermal Deformation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional optical scanning device housings deform due to heat generated by components like polygon motors, causing beam position deviations and requiring specialized technical knowledge for assembly and replacement.
Innovation Solution
A fixing mechanism with protruding pins and penetration holes in the frame, supported by a biasing member that allows for directional movement, preventing rigid fixation and enabling easy assembly and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the housing is completely screw-fastened to the frame, then the housing position is fixed securely, but localized heat deformation occurs causing scanning line deviation
Solution Approach 1:
The fixing mechanism is divided into multiple independent protruding pins (first and second protruding pins) that can be inserted into corresponding penetration holes. This segmentation allows the housing to be fixed at multiple discrete points rather than rigidly constrained as a whole, enabling thermal expansion and contraction at each point independently while maintaining overall position stability.
Solution Approach 2:
The fixing mechanism transitions from a static rigid connection to a dynamic system where the housing can move slightly in response to thermal expansion. The protruding pins allow the housing to expand and contract thermally while maintaining its position, converting the fixed constraint into a flexible dynamic connection that adapts to temperature changes.
2Stability of the object's composition
If the housing is screw-fastened using a standard pin, then the housing is fixed to the frame, but the assembling operation cannot be performed efficiently and specialized technical knowledge is required
Solution Approach 1:
The protruding pins are designed to be self-aligning and self-fixing components that can be easily inserted into the penetration holes without requiring specialized tools or technical knowledge. The simple push-fit mechanism allows users to assemble and disassemble the housing independently, making the assembly process self-service friendly and eliminating the need for specialized technicians.
Solution Approach 2:
The fixing mechanism changes from complex screw-fastening parameters (requiring torque control, alignment precision, and specialized tools) to simple geometric parameters (insertion direction and depth). This parameter simplification makes the assembly process much easier to perform and understand, allowing users to efficiently assemble the housing without specialized training.
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
Prevents localized heat deformation, maintains print quality, and allows users to assemble and replace optical scanning devices without specialized knowledge by providing a secure yet flexible mounting system.
Implementation Method 1
a biasing member biasing the housing in a direction. Here, at least one of the plurality of protruding pins is insertable to the penetration hole formed in the frame
Data Source
AI summary
A fixing mechanism of an optical scanning device, the optical scanning device emitting a light beam and performing a scanning, the optical scanning device further being fixed to a frame at an external part, the optical scanning device further including a housing, and the fixing mechanism including: a penetration hole provided in the frame; and a protruding pin provided at both ends of the housing thereby forming a plurality of protruding pins, wherein at least one of the plurality of protruding pins is insertable to the penetration hole formed in the frame; and a biasing member biasing the housing in a direction.