Hermetic Cooling Device for Disc Wheel with Gas Flow Definer
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Solution Overview
Problem
Hermetically enclosing a disc-shaped wheel in a cooling device leads to insufficient cooling due to rising air temperature, as conventional cooling methods fail to effectively dissipate heat when the wheel is rotationally driven.
Innovation Solution
A cooling device with blade members on the wheel's surface, a heat dissipater, and a gas flow definer within the enclosure separates and circulates air paths to efficiently cool the wheel, ensuring effective heat dissipation while maintaining a hermetic structure to prevent dust entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wheel is hermetically enclosed in an enclosure to prevent dust adhesion, then the reliability is improved, but the air temperature in the enclosure rises causing insufficient cooling
Solution Approach 1:
The enclosure space is segmented into multiple flow paths by the gas flow definer, separating the cooling air flow from the heated air flow. This allows independent control and optimization of each flow path, enabling effective heat dissipation while maintaining the hermetic seal for dust prevention.
Solution Approach 2:
The gas flow definer acts as an intermediary component that guides and separates the air flows within the hermetic enclosure. It directs cooled air from the heat dissipater toward the wheel surface and channels heated air away, facilitating efficient thermal management without compromising the sealed structure.
2Device complexity
If conventional cooling methods are used with hermetic enclosure, then the structure is simplified, but heat dissipation becomes insufficient
Solution Approach 1:
The cooling system utilizes the rotational motion of the wheel itself to drive the cooling blades, which dynamically generate airflow through the enclosure. This dynamic cooling approach leverages the operational state of the wheel to create effective air circulation and heat dissipation without requiring additional complex mechanical cooling devices.
Solution Approach 2:
The system employs pneumatic principles by using the rotation-induced airflow to cool the wheel. The cooling blades convert rotational motion into directed air flow that passes over the wheel surface, utilizing gas dynamics to achieve efficient heat dissipation within the hermetic enclosure.
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 effectively cools the disc-shaped wheel by circulating air through a duct-shaped gas flow definer, enhancing heat dissipation and maintaining airtightness, thus preventing dust entry and ensuring reliable operation of the projection-type image display apparatus.
Implementation Method 1
a heat dissipater to which a gas heated by the wheel is blown by the plurality of blade members due to rotation of the wheel
Implementation Method 2
a heat dissipater to which a gas heated by the wheel is blown
Data Source
AI summary
A cooling device cools down a wheel having a disc shape. The wheel is hermetically enclosed in an enclosure and rotationally driven about a rotation shaft. The cooling device includes blade members that are disposed on one surface of the wheel, a heat dissipater to which a gas heated by the wheel is blown by the blade members due to rotation of the wheel, and a gas flow definer that is located inside the enclosure, and separates a flow path along which the gas that has been cooled by the heat dissipater flows before being blown to the one surface and a flow path along which the gas that has been blown to the one surface and heated flows.