Mammography Apparatus Projector Cooling via Segmented Exhaust
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Solution Overview
Problem
Existing mammography apparatuses face a decrease in cooling efficiency for projectors due to the obstruction of air flow caused by merging air streams from the radiation source and projector, leading to inadequate cooling of the projector.
Innovation Solution
A mammography apparatus design featuring a first cooling fan for the radiation source and a second cooling fan with a lower flow rate positioned between the projector and the first exhaust port, where the second cooling fan blows air towards the projector and discharges cooled air through a separate second exhaust port.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the air streams from the radiation source and projector are merged and discharged through the same exhaust port, then the device complexity is reduced, but the cooling efficiency of the projector deteriorates due to flow obstruction
Solution Approach 1:
The single exhaust port is segmented into two separate exhaust ports: a first exhaust port for discharging air that has cooled the radiation source, and a second exhaust port for discharging air that has cooled the projector. This segmentation prevents flow obstruction and allows each component to be cooled independently with optimized airflow paths.
Solution Approach 2:
A second cooling fan is introduced as an intermediary component between the first cooling fan and the projector. This second fan creates a dedicated airflow path that draws air from the first cooling fan and directs it specifically to cool the projector, preventing the air streams from merging and obstructing each other.
2Temperature
If the flow rate of the second cooling fan is increased to improve projector cooling, then the cooling efficiency improves, but the turbulence increases and disrupts the primary cooling flow
Solution Approach 1:
The flow rate of the second cooling fan is specifically controlled to be smaller than that of the first cooling fan. This parameter adjustment ensures that the secondary airflow for projector cooling does not disrupt the primary cooling flow, maintaining overall airflow stability while still achieving effective projector cooling.
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 enhances the cooling efficiency of the projector by ensuring a smooth airflow and preventing turbulence, thereby improving the overall cooling performance.
Implementation Method 1
a first cooling fan that is disposed on a stand side with respect to the radiation source in the arm, sucks air from an outside of the arm, and discharges air that has cooled the radiation source
Implementation Method 2
a second cooling fan that is disposed between the projector and the first exhaust port in the arm, sucks a part of air directed from the first cooling fan to the first exhaust port, blows the sucked air toward the projector to cool the projector
Data Source
AI summary
A mammography apparatus includes: an arm; a first cooling fan that is disposed on a stand side with respect to the radiation source in the arm, sucks air from an outside of the arm, and discharges air that has cooled the radiation source from a first exhaust port provided on the stand side with respect to the radiation source; a projector that is disposed in the arm; a second cooling fan that is disposed between the projector and the first exhaust port in the arm, sucks a part of air directed from the first cooling fan to the first exhaust port, blows the sucked air toward the projector to cool the projector, and has a flow rate smaller than that of the first cooling fan; and a second exhaust port that is provided separately from the first exhaust port and through which air that has cooled the projector is discharged.