Intake Duct Uniform Cooling Image Forming Unit
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Solution Overview
Problem
Conventional image forming devices experience non-uniform cooling of the image forming unit due to unheated air entering one end and heated air entering the other end, leading to inconsistent cooling effects along the direction parallel to the photosensitive member's shaft.
Innovation Solution
An image forming device with an elongated intake duct inside the enclosure, where air drawn through an air intake flows into the duct and is directed towards the image forming unit through openings on an opposing part, ensuring uniform air flow and cooling across the unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If air intake is formed in the first wall to allow air communication between interior and exterior of the enclosure, then cooling function is provided for the image forming unit, but non-uniform cooling occurs along the first direction due to unheated air entering one end and heated air entering the other end
Solution Approach 1:
The air intake is divided into multiple separate intakes positioned at different locations along the first direction. Each air intake allows cooled air to be introduced at specific positions, ensuring that cooling air is supplied uniformly across the entire length of the image forming unit rather than relying on a single intake location.
Solution Approach 2:
Different regions of the first wall are equipped with air intakes according to the local cooling requirements of the image forming unit. By positioning air intakes at specific locations corresponding to areas requiring cooling, the system achieves uniform temperature distribution across the image forming unit while maintaining simple overall structure.
2Manufacturing precision
If multiple air intakes are provided at different positions along the first direction, then uniform cooling is achieved, but device complexity increases
Solution Approach 1:
The air intake system is segmented into multiple simple intake openings distributed along the first wall, rather than using a single complex intake structure. This segmentation allows each intake to be simple in design while collectively achieving uniform cooling coverage across the image forming unit.
Solution Approach 2:
The first wall serves multiple functions: it acts as the enclosure boundary, provides structural support, and simultaneously houses multiple air intakes for cooling. By integrating the cooling function into the existing wall structure rather than adding separate complex cooling components, the system achieves uniform cooling without proportionally increasing device complexity.
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
The solution provides uniform cooling of the image forming unit by optimizing air flow patterns, ensuring consistent temperature regulation and improving the cooling efficiency along the direction parallel to the photosensitive member's shaft.
Implementation Method 1
Air drawn in through the air intake flows into the intake duct. Air introduced into the intake duct flows toward the image forming unit through the opening.
Implementation Method 2
The air flows over the image forming unit at this time so as to cool the unit
Data Source
AI summary
An image forming device includes: an image forming unit; an enclosure; and an intake duct. The image forming unit includes a photosensitive member having an axis. The enclosure is configured to house the image forming unit and includes a first wall provided on one side of the image forming unit with respect to a first direction parallel to the axis. An air intake is formed in the first wall to allow air communication between an interior and an exterior of the enclosure. The intake duct is elongated in the first direction. Air drawn in through the air intake flows into the intake duct. The intake duct includes an opposing part. The opposing part opposes the image forming unit in a second direction perpendicular to the first direction. An opening is formed in the opposing part. Air introduced into the intake duct flows toward the image forming unit through the opening.