Developer Bottom-Surface Airflow Layout for Heat Suppression
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Solution Overview
Problem
Existing image forming apparatuses face challenges in effectively suppressing temperature rises at the bottom surface of the developing section due to airflow direction limitations, which can lead to increased contamination and component wear.
Innovation Solution
The apparatus incorporates a blowing part that blows air from the lower side towards the bottom surface, with a configured flow passage system that directs the airflow along and intersecting directions to enhance cooling efficiency and minimize contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a blowing part blows air only in a blowing direction along the bottom surface of the developing section, then the structure is simple, but the temperature rise of the bottom surface cannot be suppressed effectively
Solution Approach 1:
The airflow generation is divided into two independent components: a blowing part that generates upward airflow from below the bottom surface, and a flow passage that directs airflow along the bottom surface. This segmentation allows each component to be optimized for its specific function, achieving effective cooling without excessive complexity
Solution Approach 2:
The invention introduces a vertical dimension to the airflow by blowing air from below the bottom surface upward, then using the flow passage to redirect this vertical airflow into horizontal flow along the bottom surface. This dimensional transition creates a more effective cooling pattern than horizontal blowing alone
2Temperature
If wind speed at the bottom surface is increased to suppress temperature rise, then cooling effect is improved, but energy consumption increases
Solution Approach 1:
The flow passage maintains continuous airflow along the bottom surface by capturing the upward blown air and redirecting it horizontally. This continuous flow path ensures sustained cooling effect without requiring periodic high-intensity blowing, thereby reducing overall energy consumption
Solution Approach 2:
The flow passage acts as an intermediary that transforms the vertical airflow from the blowing part into horizontal airflow along the bottom surface. This intermediary structure optimizes the airflow pattern to achieve better cooling efficiency at lower energy consumption
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 configuration effectively suppresses temperature rises, reduces component size and contamination, and enhances airflow speed, thereby maintaining apparatus performance and reducing maintenance needs.
Implementation Method 1
a blowing part that blows air from a lower side with respect to a bottom surface of the developing section toward the bottom surface to blow wind against the bottom surface
Data Source
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AI summary
An image forming apparatus (10) includes: a developing section (38) that accommodates a developer; a blowing part (72) that blows air from a lower side with respect to a bottom surface (43) of the developing section toward the bottom surface to blow wind against the bottom surface; and a flow passage (73, 74, 75) that causes the wind blown against the bottom surface to flow in a blowing direction along the bottom surface.