Video Camera Heat Sink and Movable LCD Panel Airflow Design
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Solution Overview
Problem
Video cameras with image sensors face challenges in heat dissipation, especially when the liquid crystal panel is closed, leading to increased internal temperature and potential image defects like 'white scars', while also requiring an aesthetically pleasing design.
Innovation Solution
A video camera design featuring air outlet and inlet holes on a panel-facing surface, a duct for airflow guidance, a heat sink for the image sensor, and a movable liquid crystal panel unit that reduces airflow resistance when in a specific position, allowing for effective heat dissipation and maintaining a sleek appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the liquid crystal panel unit is closed to maintain aesthetic appearance, then the appearance is improved, but the internal temperature rises due to blocked airflow
Solution Approach 1:
The liquid crystal panel unit is segmented into two distinct faces: a first face with a display screen and a second face without display elements. This segmentation allows the panel to serve different functions depending on its orientation, enabling aesthetic closure while maintaining airflow pathways when needed.
Solution Approach 2:
The liquid crystal panel unit is designed to be movable between different positions (open and closed states). This dynamic capability allows the system to adapt airflow resistance based on operational requirements, reducing airflow resistance when the panel is in the second position to facilitate heat dissipation while maintaining aesthetic appearance when in the first position.
2Temperature
If air outlet holes and air inlet holes are provided on the panel-facing surface for heat dissipation, then temperature control is improved, but airflow resistance increases when the panel is closed
Solution Approach 1:
Different regions of the liquid crystal panel unit are designed with different properties: the first face includes a display screen suitable for user interaction, while the second face is designed to minimize airflow resistance. This local differentiation allows the panel to maintain aesthetic appearance when closed with the first face outward, while reducing airflow resistance when the second face is positioned toward the panel-facing surface.
3Temperature
If the liquid crystal panel unit is designed to reduce airflow resistance in the second position, then heat dissipation is improved, but the device complexity increases
Solution Approach 1:
The liquid crystal panel unit serves multiple functions: it provides a display interface when the first face is outward, acts as an aesthetic cover when closed with the first face outward, and functions as an airflow optimization element when the second face is positioned toward the panel-facing surface. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity.
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 design effectively reduces internal camera temperature, minimizes airflow resistance, and prevents image defects, while maintaining a pleasant appearance by optimizing airflow and heat dissipation through the use of strategically placed airholes and heat sinks.
Implementation Method 1
a heat sink which releases the heat generated by the image sensor into the duct
Implementation Method 2
a duct, disposed inside the camera body, which guides air taken in through the air inlet holes to the air outlet holes
Data Source
AI summary
In a video camera, air outlet holes and air inlet holes are disposed in a panel-facing surface of a camera body. A duct is disposed inside the camera body and guides the air taken in through the air inlet holes to the air outlet holes. A first heat sink is so arranged as to extend from an image sensor into the duct, and the first heat sink releases the heat generated by the image sensor into the duct. A liquid crystal panel unit is movably disposed between a first position in which a first face of the liquid crystal panel unit including a display screen of a liquid crystal panel faces the panel-facing surface of the camera body and a second position in which a second face faces the panel-facing surface. When the liquid crystal panel unit is in the first position, the first face is so formed as to cover the air outlet holes and the air inlet holes. The second surface of the liquid crystal panel unit is formed so that the air outlet holes and the air inlet holes are open to the exterior when the liquid crystal panel unit is in the second position.