Resin Frame Duct Structure for Image Forming Apparatus Cooling
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Solution Overview
Problem
Conventional image forming apparatuses with metal frames are not cost-effective, lack compactness and lightness, and resin frames face challenges in air flow and strength, leading to inadequate exhaust and cooling of image forming units.
Innovation Solution
An image forming apparatus with a resin frame featuring a first duct for air flow on one side, a second duct on the opposite side, and a third duct between them, enhancing air flow and reinforcing the resin frame's strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a resin frame is used instead of a metal frame, then cost is reduced, compactness is improved, and lightness of weight is achieved, but strength is insufficient
Solution Approach 1:
The frame is divided into multiple resin frame members (first resin frame member, second resin frame member, third resin frame member, fourth resin frame member) that are connected through duct portions. This segmentation allows each member to be optimized for specific functions while collectively providing the required strength and air flow paths.
Solution Approach 2:
The invention uses resin frame members with integrated duct portions that combine structural support and air flow functions. The duct portions are formed as integral parts of the resin frame members, creating a composite structure that provides both mechanical strength and fluid flow capabilities.
2Device complexity
If a single duct is provided for air flow, then device complexity is reduced, but air flow reliability is insufficient for proper exhaust and cooling
Solution Approach 1:
The air flow path is divided into multiple ducts (first duct, second duct, third duct) that are distributed across different resin frame members. This segmentation ensures redundant air flow paths and reliable exhaust of unwanted substances while maintaining a relatively simple overall structure.
Solution Approach 2:
The duct portions serve multiple functions: they provide structural connection between resin frame members, create air flow paths for cooling, and enable exhaust of unwanted substances. This multi-functionality reduces the need for separate components while ensuring reliable air flow.
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
Ensures reliable exhaust of unwanted substances like ozone and nitrogen oxides and effective cooling of image forming units while improving the resin frame's strength and structural integrity.
Implementation Method 1
a first duct that allows air to flow on one side of the image forming unit, a second duct that allows air to flow on the other side that is opposite to the one side, and a third duct that allows air to flow between the first duct and the second duct
Data Source
AI summary
In one embodiment, an image forming apparatus (100) is provided with a resin frame (300) made of resin and an image forming unit (200). The image forming apparatus further includes a first duct (410) that allows air to flow on one side of the image forming unit (200), a second duct (420) that allows air to flow on the other side, and a third duct (430) that allows air to flow between the first duct and the second duct. The resin frame (300) has a first duct portion (311) that constitutes at least a portion of the first duct (410), and a second duct portion (321) that constitutes at least a portion of the second duct (420).