Display Apparatus Chamber Ventilation and Heat Dissipation
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Solution Overview
Problem
Conventional display apparatuses face performance deterioration and shortened usage life due to exposure to moisture and dust, and potential heat radiation failures when an inside-outside communication environment is not created for heat exchange.
Innovation Solution
A display apparatus design featuring a chamber with a circulation path and ventilation fans to circulate air between high and low density areas, with a partition member guiding airflow and a radiation plate for efficient heat transfer, while maintaining protection from external moisture and dust.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a vent is formed at the housing to discharge inner hot air outside, then heat radiation is improved, but the inner parts are exposed to moisture and dust
Solution Approach 1:
The housing is divided into a sealed chamber for protecting circuit parts and a separate venting structure for heat radiation. The chamber maintains a closed environment while the vent provides a controlled path for hot air to escape, separating the protection function from the heat dissipation function.
Solution Approach 2:
A ventilation fan acts as an intermediary to actively circulate air through the chamber. The fan draws hot air from the circuit unit and directs it toward the vent, enabling controlled heat radiation while maintaining the sealed protection of the chamber against moisture and dust.
2Object-affected harmful factors
If the inside of the display apparatus is closed from the outside, then protection from moisture and dust is improved, but heat radiation efficiency deteriorates
Solution Approach 1:
The system uses the heat itself to drive the ventilation process. Hot air naturally rises and creates pressure differential that assists the ventilation fan in circulating air through the chamber, enabling the closed structure to maintain both protection and heat radiation efficiency.
Solution Approach 2:
The ventilation system transitions from a static closed structure to a dynamic system with active air circulation. The ventilation fan creates moving air currents that continuously refresh the air inside the chamber, allowing efficient heat radiation while maintaining the sealed protective environment.
3Temperature
If ventilation fans are provided to circulate air inside the chamber, then heat radiation is improved, but device complexity increases
Solution Approach 1:
The ventilation fan serves multiple functions simultaneously: it circulates air for heat radiation, cools the circuit unit, and works in conjunction with the sealed chamber to maintain a controlled internal environment. This multi-functionality reduces the need for separate dedicated components.
Solution Approach 2:
The ventilation fan is integrated into the existing housing structure, combining the cooling function with the structural housing. The fan is positioned to utilize the natural convection currents and works synergistically with the vent opening, merging multiple functions into a unified design that minimizes additional 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 solution effectively protects internal components from moisture and dust while ensuring efficient heat radiation, even without external heat exchange environments, thereby extending the display apparatus's performance and lifespan.
Implementation Method 1
at least one ventilation fan ventilating air inside the chamber along a circulation path passing beyond the circuit unit
Implementation Method 2
The chamber may include a radiation plate radiating heat inside the chamber
Data Source
AI summary
A display unit is disclosed. A display apparatus includes a panel unit displaying images, a circuit unit provided a rear surface of the panel unit, a chamber surrounding the circuit unit, the chamber forming a predetermined space and at least one ventilation fan ventilating air inside the chamber along a circulation path passing beyond the circuit unit. According to a display apparatus according to the present invention, parts which are mounted in the display apparatus may be protected from external moisture or dust. Furthermore, heat radiation may be performed efficiently in the display apparatus according to the present invention even if environments of heat exchanging with an outside may not be formed enough in a structure of the display apparatus.