Dual-Circuit Heater Control for Aerosol State Detection
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Solution Overview
Problem
Existing electronic cigarette devices require simplified structures and efficient control mechanisms for their heaters to perform multiple functions effectively.
Innovation Solution
An aerosol-generating device with a heater assembly and dual circuits controlled by a processor to detect current, determine the device's state, and supply power based on that state, enabling safe and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single heater circuit is used in electronic cigarette devices, then the device structure is simple, but the heater cannot perform multiple functions effectively and control precision is limited
Solution Approach 1:
The patent implements a dual-circuit heater system where the first heater circuit and second heater circuit enable the heater to perform multiple functions including heating control, temperature sensing, and exhaustion detection. This multi-functional capability resolves the contradiction by allowing one heater assembly to serve multiple purposes that would otherwise require separate components.
Solution Approach 2:
The heater system is divided into two separate circuits (first heater circuit and second heater circuit) that can operate independently or together. This segmentation allows each circuit to be optimized for specific functions, enabling versatile control while maintaining modular simplicity in the overall structure.
2Device complexity
If the heater performs multiple roles, then device structure is simplified, but control precision and state detection capability are reduced
Solution Approach 1:
The patent incorporates feedback mechanisms where the processor monitors the operation state of the dual heater circuits and adjusts their operation accordingly. The system detects device states including aerosol-generating substance exhaustion through the heater circuits' electrical characteristics, providing precise measurement capabilities while maintaining simplified structure.
Solution Approach 2:
The heater circuits are designed to perform multiple roles including heating, temperature sensing, and exhaustion detection. By making the heater assembly multi-functional, the patent simplifies the component structure while maintaining precise state detection capabilities through intelligent control of the dual circuits.
3Measurement precision
If dual circuits are used for heater control, then state detection and control precision are improved, but device complexity increases
Solution Approach 1:
The dual-circuit system is segmented into a first heater circuit and second heater circuit, each with specific functions. This segmentation allows for precise current detection and control while organizing the complexity into manageable, functionally-distinct modules that simplify overall system management.
Solution Approach 2:
The patent merges the functions of heating and sensing into a single dual-circuit heater assembly. By combining these functions in one integrated structure rather than using separate components, the system achieves precise measurement capabilities without proportionally increasing 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
The solution allows for safe and convenient use by determining the exhaustion of aerosol-generating substances and optimizing heater operation, enhancing user safety and device efficiency.
Implementation Method 1
a heater disposed around at least a portion of a cigarette inserted into the aerosol-generating device
Data Source
AI summary
An aerosol-generating device includes a heater assembly including a heater disposed around at least a portion of a cigarette inserted into the aerosol-generating device, a first circuit and a second circuit connected in parallel to each other to the heater, and a processor configured to control the first circuit and the second circuit to selectively operate, wherein the processor is configured to detect current occurring in the heater using the first circuit, determine a current state of the aerosol-generating device based on the detected current, control the aerosol-generating device based on the current state, and supply current to the heater using the second circuit.