Ventilation Port Control Using Isolated External Sensor
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Solution Overview
Problem
Existing opening and closing control apparatuses for inlet ports are prone to inaccurate temperature detection due to sensor contact with the casing, leading to inappropriate port operation.
Innovation Solution
An opening and closing control system with internal and external environment detecting sections, where the external sensor is separated from the casing to accurately detect external conditions, and a control unit manages the inlet port based on the detected environment differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the external environment sensor is placed in contact with the casing to simplify installation and protect the sensor, then the sensor is protected and installation is easier, but the sensor cannot accurately detect the external environment temperature due to heat conduction from the casing
Solution Approach 1:
The patent introduces a heat insulating member as an intermediary between the sensor mounting surface and the sensor. This heat insulating member prevents heat conduction from the casing to the sensor, allowing the sensor to accurately detect external environment temperature even when mounted on the casing. The heat insulating member acts as a thermal barrier that blocks the harmful heat transfer path while maintaining the mechanical mounting connection.
2Reliability
If the sensor is mounted on the casing to ensure proper positioning and protection, then the sensor is protected and positioning is ensured, but the casing blocks the sensor from detecting the true external environment
Solution Approach 1:
The heat insulating member serves as a mediator that blocks the harmful thermal influence from the casing while allowing the sensor to remain mounted on the casing for proper positioning and protection. This resolves the conflict between needing the casing as a mounting structure and needing to avoid its thermal interference.
Solution Approach 2:
The patent extracts the thermal interference function from the casing by introducing a separate heat insulating member. This allows the casing to maintain its structural and protective functions while the heat insulating member specifically addresses the thermal interference issue, separating the harmful thermal conduction path.
3Reliability
If the inlet port is kept closed to protect electronic devices from external environment, then device protection is improved, but heat dissipation and ventilation are compromised
Solution Approach 1:
The control unit uses feedback from both the internal environment sensor (monitoring temperature inside the casing) and the external environment sensor (monitoring outside temperature) to make intelligent decisions about inlet port operation. By comparing the temperature difference between inside and outside, the control unit can determine when opening the inlet port would benefit heat dissipation versus when keeping it closed provides better protection, enabling dynamic adaptive control.
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 system enables precise control of the inlet port, reducing the impact of the casing on external environment detection and ensuring appropriate opening and closing, thereby maintaining optimal operating conditions for electronic devices.
Implementation Method 1
there is a risk that a sensor that detects temperature outside the casing is affected by the casing since the sensor is in contact with the casing
Data Source
AI summary
An opening and closing control system that controls an operation of an inlet port so that an external environment is detected more accurately and opening and closing of the inlet port is controlled more properly is provided. In the ventilation control system, an internal environment sensor detects an internal environment of a casing, and an external environment sensor is disposed apart from the casing without being in contact with the casing and detects an external environment of the casing which corresponds to the internal environment. Then, a calculation unit obtains the internal environment and the external environment detected by the internal environment sensor and the external environment sensor, and controls opening and closing of a ventilation port in response to difference between the internal environment and the external environment.