Temperature anomaly handling method for hot air heating equipment
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Solution Overview
Problem
Conventional hot air guns determine whether to suspend heating based solely on the temperature of the heating wire, without considering outlet obstruction, leading to inaccurate anomaly detection and reduced operating efficiency.
Innovation Solution
A temperature anomaly handling method that uses dynamic sensing by a control module, which determines temperature anomalies through a temperature sensing element and executes a protection program to suspend or resume power supply based on specific temperature thresholds and time intervals, ensuring accurate anomaly detection and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed upper temperature limit is set to avoid overheat damage, then safety is improved, but heating efficiency deteriorates due to unnecessary suspension of heating when outlet obstruction occurs temporarily
Solution Approach 1:
The patent introduces a feedback mechanism that monitors both temperature and outlet conditions. The control module receives feedback from the temperature sensing element and determines whether to suspend heating based on the combination of temperature data and outlet status, rather than relying solely on a fixed temperature threshold. This feedback loop enables more accurate decision-making that balances safety with operational efficiency.
2Speed
If heating suspension is triggered solely based on temperature value, then response speed is improved, but determination accuracy deteriorates due to false alarms from temporary outlet obstructions
Solution Approach 1:
The patent transitions from a static temperature threshold approach to a dynamic determination method. The control module dynamically evaluates both temperature changes and outlet conditions in real-time, adjusting the heating suspension decision based on the combined state of these variables. This dynamic approach improves determination accuracy while maintaining rapid response capability.
3Measurement precision
If the control module considers both temperature and outlet conditions for heating suspension determination, then determination accuracy is improved, but device complexity increases
Solution Approach 1:
The control module is designed to perform multiple functions: it monitors temperature, detects outlet conditions, determines heating suspension decisions, and controls power supply. By making the control module multi-functional, the patent avoids adding separate dedicated components for each function, thereby improving determination accuracy while minimizing the increase in overall 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
Enhances the accuracy of temperature anomaly detection and ensures safe operation by preventing overheating, while allowing normal heating when anomalies are resolved, thus improving the overall efficiency and stability of the equipment.
Implementation Method 1
a temperature sensing element configured to sense a heating temperature
Implementation Method 2
a heating element energized to generate heat
Implementation Method 3
the electric motor driving the fan to rotate to deliver the heat generated by the heating element out of the housing via an air outlet
Data Source
AI summary
A temperature anomaly handling method includes: a step when a temperature rise reaches a certain temperature within a first time interval, the control module determines occurrence of temperature anomaly and performs a step in which the control module starts countdown, and in a case that a temperature rise of the temperature sensing element reaches a second temperature within a second time interval, the control module determines that temperature anomaly lasts based on a temperature signal fed back from the temperature sensing element, and performs a step in which the control module executes a protection program. By determining whether temperature anomaly really occurs to the equipment based on twice dynamic temperature rise signals of the temperature sensing element, determination accuracy may be significantly enhanced; without actual occurrence of temperature anomaly, the heating element performs heating normally, which may guarantee operating effect of the equipment.