Movable Power Board for Digital Signage Heat Dissipation
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Solution Overview
Problem
Digital signage displays face premature wear due to heat generated by power boards, which is not effectively managed by traditional heat dissipation methods, especially when the boards are in different orientations, leading to potential damage to main components.
Innovation Solution
A digital signage display system with a power board that can be automatically moved between two positions using step motors and rail systems, triggered by sensors detecting orientation changes, to minimize heat transfer to critical components, eliminating the need for continuous fan operation and optimizing heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional heat dissipation methods (fans) are used, then heat can be directed away from heat generating parts, but the method cannot be adapted with the board in different orientations and is not always particularly effective
Solution Approach 1:
The power board is made movable between different positions (first position below main board, second position above main board) rather than fixed, allowing the system to dynamically adapt to different display orientations. This dynamic positioning enables effective heat dissipation in both portrait and landscape modes without requiring orientation-specific fan configurations.
Solution Approach 2:
The movable power board mechanism provides universal heat dissipation capability that works effectively in multiple display orientations (both portrait and landscape). A single mechanical solution replaces the need for orientation-specific heat dissipation configurations, making the system universally adaptable.
2Reliability
If the power board is positioned to minimize heat transfer to the main board, then heat damage to main components is reduced, but the system must continuously monitor and adjust board positions requiring power consumption
Solution Approach 1:
The power board is pre-positioned in the first position (below the main board) during assembly, which is the optimal heat dissipation position for portrait orientation. This preliminary positioning ensures protection of main components from heat damage from the moment the display is assembled, without requiring continuous power consumption for monitoring and adjustment.
Solution Approach 2:
The system utilizes the natural weight and position of the power board to achieve optimal heat dissipation configuration. The power board's position is determined by the mechanical design rather than requiring active power consumption for continuous monitoring and adjustment, making the system self-sufficient in maintaining protective positioning.
3Device complexity
If the power board is fixed in one position, then the system is simpler, but heat generated by the power board affects the main board and causes premature wear
Solution Approach 1:
The power board is designed to be movable between different positions rather than fixed, allowing it to be positioned optimally for heat dissipation. This dynamic capability, while adding some complexity, significantly improves reliability by preventing heat-related premature wear of the display.
Solution Approach 2:
The power board is extracted from its traditional fixed position adjacent to the main board and relocated to a separate movable position. This separation removes the harmful thermal influence on the main board, extending the display's lifespan while maintaining reasonable system complexity through modular design.
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 system effectively reduces heat damage to main components by repositioning the power board when the display is rotated, enhancing the lifespan of digital signage displays by minimizing heat exposure to critical hardware components without requiring user input or continuous power usage.
Implementation Method 1
The means for moving the power board comprises step motors and a rail system
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
The invention provides a digital signage display comprising: a display screen; a main board; a second component; and means for automatically moving the second component between a first position and a second position, wherein the display comprises connections for electrically coupling the second component to each of a power supply and a main board in each of the first position and the second position. The invention also provides an active board locating system for a digital signage display, a method for producing a digital signage display, and a method for controlling heat transfer within a digital signage display.