Endoscopic Heat Radiator Chimney Effect Design
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Solution Overview
Problem
Existing endoscopic devices face challenges with heat management, as the heat radiating capability of their heat radiators is reduced by shields, leading to increased weight and reduced portability when attempting to enhance heat dissipation, making long-term observations difficult.
Innovation Solution
The design incorporates a heat radiator with air inlets and outlets of varying sizes to create a pressure differential for air circulation, utilizing a chimney effect to efficiently dissipate heat through a series of fins and vent holes, maintaining a lightweight structure while increasing heat radiating capability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the heat radiator is increased in size for higher heat radiating capability, then heat dissipation is improved, but the endoscopic device becomes heavier and portability is impaired
Solution Approach 1:
The patent changes the geometric parameters of the heat radiator by providing air inlets with larger areas than air outlets. This parameter optimization allows the heat radiator to achieve higher heat dissipation efficiency without increasing overall size, thereby maintaining device portability while improving temperature control
2Object-affected harmful factors
If a shield is added to cover the heat radiator, then user safety is improved, but heat radiating capability is reduced
Solution Approach 1:
The patent introduces air inlets and air outlets as intermediary elements that mediate between the heat radiator and the external environment. These openings allow controlled air flow to enhance heat dissipation while the shield maintains its protective function, resolving the conflict between safety and heat radiating capability
3Temperature
If the air outlet area is increased, then heat dissipation is improved, but air flow efficiency is reduced
Solution Approach 1:
The patent optimizes the area ratio between air inlets and air outlets, specifically designing air inlets with larger areas than air outlets. This parameter configuration creates optimal pressure differential and air flow velocity, achieving efficient heat dissipation while maintaining high air flow efficiency through the heat radiator
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 solution allows for effective heat dissipation, maintaining a lightweight endoscopic device that enables users to perform satisfactory observations for extended periods without the need for excessive heat radiator size or weight, enhancing portability and operational duration.
Implementation Method 1
a heat radiator thermally connected to the light source
Implementation Method 2
The heat radiator functions as a heat sink that radiates outwardly the heat generated by the light-emitting element
Implementation Method 3
The heat radiator has a plurality of first fins and a plurality of disk-shaped second fins that are exposed outwardly
Data Source
AI summary
An endoscopic device includes a manipulator body and an insertion portion including opposed respective proximal and distal ends. The insertion portion is connected to the manipulator body via the proximal end. A first heat generator is configured to be attached to the manipulator body. A heat radiator is configured to be detachably attached to the manipulator body and is thermally connected to the first heat generator. The heat radiator includes at least one air inlet port through which air flows in and at least one air outlet port having an area smaller than an area of the at least one air inlet port.