Cylindrical Projection Casing Curvature for Unobstructed Airflow
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Solution Overview
Problem
Conventional projection devices have limited projection angle adjustment capabilities and often obstruct airflow paths during angle adjustments, hindering effective heat dissipation.
Innovation Solution
A projection device with a cylindrical casing design featuring air inlet and outlet holes and a fan, where the casing's outer size decreases towards the middle section, maintaining a gap between these holes and the working plane, ensuring unobstructed airflow and intuitive angle adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the projection device is designed with a cylindrical casing and decreasing outer size toward the middle section, then the heat dissipation effect is improved by maintaining unobstructed airflow paths, but the projection angle adjustment capability is limited
Solution Approach 1:
The patent employs a cylindrical casing design where the outer size gradually decreases from both ends toward the middle section, forming a curved surface. This curvature ensures that when the device is placed on a working plane, the air inlet and outlet holes maintain a gap with the plane, preventing airflow obstruction and improving heat dissipation effectiveness.
2Reliability
If the air inlet holes and air outlet holes are positioned on the cylindrical casing, then the airflow path remains unobstructed during angle adjustments, but the device complexity increases due to the specific geometric design requirements
Solution Approach 1:
The cylindrical casing with decreasing outer size toward the middle section creates a geometric configuration where air inlet and outlet holes naturally maintain spacing from the working plane. This curvature-based design ensures reliable airflow paths without requiring additional mechanical components or complex adjustment mechanisms.
Solution Approach 2:
The cylindrical casing structure serves multiple functions simultaneously: it provides the structural housing for the projection device, defines the positioning of air inlet and outlet holes to ensure unobstructed airflow, and maintains a compact form factor. This multi-functionality reduces the need for separate components.
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 design allows for efficient heat dissipation and easy angle adjustments without blocking airflow, enhancing the device's thermal management and user experience.
Implementation Method 1
a fan (130). The fan (130) is installed in the main body (111)
Data Source
AI summary
A projection device includes a casing, a projection lens, and a fan. The casing includes a main body, a first base, and a second base, wherein the main body has a first side, a second side opposite to the first side, a middle section located between the first side and the second side, air inlet holes at least distributed in the middle section, and air outlet holes at least distributed in the middle section. The first base is installed on the first side, and the second base is installed on the second side. A minimum outer dimension of the main body falls in the middle section, and the air inlet holes face away from the air outlet holes. The projection lens is installed on the main body and located at the same side as the air outlet holes. The fan is installed in the main body.