Cooling Unit Airflow Layout for Low-Pressure Image Forming Apparatus
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Solution Overview
Problem
Existing cooling devices for image forming apparatuses face inefficiencies in air flow and heat transfer due to suboptimal design of air suction and exhaust ports, leading to reduced cooling efficiency and increased pressure loss.
Innovation Solution
A cooling device with a specific configuration including a cooling unit, first and second covering members, and a flow path member that allows air to flow from an opening directed downwardly to the air suction port, enhancing air flow and heat transfer efficiency by creating a gap for air to flow through and reducing pressure loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the air suction port is exposed at the front surface without covering members, then air flow access is maximized, but dust and debris can enter the cooling unit causing maintenance challenges
Solution Approach 1:
The covering member is divided into a first covering portion and a second covering portion that can be selectively positioned. The first covering portion covers the air suction port when the cooling unit is installed, while the second covering portion covers the air suction port when the cooling unit is removed, allowing maintenance access while preventing dust entry during operation
Solution Approach 2:
The covering member is designed to change its configuration dynamically based on the installation state of the cooling unit. When the cooling unit is installed, the first covering portion is positioned to cover the air suction port; when removed, the second covering portion covers the port, enabling automatic adaptation to operational and maintenance states
2Ease of repair
If covering members are added to protect the air suction port, then dust and debris entry is prevented, but device complexity increases
Solution Approach 1:
The covering member serves multiple functions: it acts as a protective cover during operation, a protective cover during maintenance, and integrates with the housing structure. This multi-functionality reduces the need for separate components for each function, thereby limiting the increase in device complexity
Solution Approach 2:
The first and second covering portions are integrated into a single covering member that is attached to the housing. This merging of multiple covering functions into one component simplifies the overall structure compared to having separate covers for operational and maintenance states
3Productivity
If the flow path member is positioned to allow downward air flow, then cooling efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The flow path member is designed with specific local features: a downwardly directed opening at the bottom surface and side surface openings. These localized structural modifications create the desired downward air flow pattern without requiring complete redesign of the entire component, thus limiting manufacturing complexity while achieving improved cooling efficiency
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 configuration improves cooling efficiency by increasing air flow to the suction port, reducing pressure loss, and facilitating effective heat transfer from the cooling target to the air, thereby enhancing the overall performance of the cooling device.
Implementation Method 1
the cooling unit transfers heat from a cooling target to air sucked from the air suction port to cool the cooling target
Data Source
AI summary
A cooling device having a cooling unit including an air suction port that is disposed at a front surface side of a main body of the cooling device to suck air, and an air exhaust port that is disposed at a rear surface side of the main body of the cooling device to exhaust air, in which the cooling unit transfers heat from a cooling target to air sucked from the air suction port to cool the cooling target, and discharges the heat-transferred air from the air exhaust port.