E-cigarette Heating Sheet Temperature Control for Safety
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Solution Overview
Problem
Electronic cigarettes are prone to unintentional heating without a cartridge, posing safety hazards due to the risk of fire when flammable substances come into contact with the heating element during carrying.
Innovation Solution
A method and apparatus that control the heating temperature of the electronic cigarette's heat generating sheet to a lower temperature when no cartridge is detected, preventing combustion and ensuring safety by maintaining the heat at a non-igniting level until a cartridge is inserted, and then increasing the temperature for proper operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the heating element is activated upon trigger signal, then the electronic cigarette can be used immediately, but it may cause accidental fires when flammable substances contact the heating element during carrying
Solution Approach 1:
The patent changes the temperature parameter of the heating element based on the presence of a cartridge. When no cartridge is detected, the heating temperature is limited to a first temperature (below ignition point of flammable substances). When a cartridge is detected, the temperature can reach the second temperature (ignition point). This dynamic parameter adjustment resolves the contradiction between immediate usability and fire hazard.
Solution Approach 2:
The patent performs preliminary detection of cartridge presence before allowing full heating operation. The control unit detects whether a cartridge is installed in the cigarette pocket before enabling the heating element to reach temperatures sufficient for combustion. This preliminary action prevents accidental fires while maintaining ease of operation.
2Object-affected harmful factors
If the heating temperature is limited to a first temperature when no cartridge is present, then safety is improved, but the electronic cigarette cannot function properly without a cartridge
Solution Approach 1:
The patent makes the heating temperature dynamic rather than static. The control unit continuously monitors cartridge presence and adjusts the heating temperature accordingly - maintaining a low first temperature when no cartridge is present (for safety) and enabling a high second temperature when a cartridge is detected (for proper function). This dynamic adaptation resolves the contradiction between safety and functional versatility.
Solution Approach 2:
The patent changes the operational parameters of the heating element based on detection results. When no cartridge is detected, the temperature parameter is set to a first temperature that prevents combustion. When a cartridge is detected, the temperature parameter switches to a second temperature that enables proper heating and vaporization. This parameter change strategy ensures both safety and functional adaptability.
3Reliability
If the electronic cigarette is triggered by mistake during carrying, then unintended heating occurs, but continuous high-temperature heating wastes energy and reduces battery life
Solution Approach 1:
The patent changes the power consumption parameter based on cartridge presence. When no cartridge is detected, the heating element operates at a low first temperature that consumes minimal energy, preventing battery drain from accidental triggers. When a cartridge is detected, the system switches to a high second temperature for proper operation. This parameter adjustment resolves the contradiction between trigger accuracy and energy efficiency.
Solution Approach 2:
The patent implements periodic detection of cartridge presence and adjustment of heating temperature. The control unit continuously or periodically checks whether a cartridge is installed and adjusts the heating temperature accordingly. This periodic action ensures that energy is only consumed at high levels when actually needed (with a cartridge present), resolving the contradiction between reliable triggering and energy conservation.
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 solution effectively prevents accidental fires by maintaining the heat generating sheet at a safe temperature when the device is not in use and ensures safe operation by adjusting the temperature based on the presence of a cartridge, enhancing the overall safety and usability of electronic cigarettes.
Implementation Method 1
a heating element starts to generate heat
Data Source
AI summary
Provided are a method and apparatus for controlling an electronic cigarette, and an electronic cigarette. When a trigger signal is received, the electronic cigarette is initiated, a heating temperature of a heat generating sheet of the electronic cigarette is controlled to be a first temperature, and the heat generating sheet enters a low-temperature heating state; when it is determined that no cartridge exists in a cigarette pocket of the electronic cigarette, the heating temperature of the heat generating sheet is controlled to be maintained at the first temperature which cannot combust a flammable substance, thereby when the electronic cigarette is carried, avoiding safety hazards of a fire brought by an unintentional trigger of an initiation switch in case a flammable substance is brought into contact with the heating element of the electronic cigarette, and improving the usage safety of the electronic cigarette.