Multi-Section Heater Circuit for Differential Aerosol Heating
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Solution Overview
Problem
Existing tobacco-burning products release harmful substances during combustion, and existing heating devices lack flexibility in controlling the heating of different sections of tobacco or non-tobacco products, leading to inefficient aerosol generation.
Innovation Solution
An aerosol generating device with a heater comprising multiple heating elements arranged in sequence, where the first and second heating elements are heated in parallel during a first time phase, and all three elements are heated in parallel during a second time phase, allowing differential heating control through a circuit that selectively connects electrodes to the battery core.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple heating elements are used to heat different sections of tobacco products, then heating flexibility and aerosol generation efficiency are improved, but device complexity increases
Solution Approach 1:
The heater is divided into multiple independent heating elements (first, second, and third heating elements) arranged at intervals along the longitudinal direction, each capable of being independently activated to heat different sections of the tobacco or non-tobacco product, thereby improving heating flexibility and aerosol generation efficiency
Solution Approach 2:
The circuit is designed to provide multiple heating modes by selectively connecting different heating elements to the battery core through switching elements, allowing the same heater structure to serve multiple functions: single element heating, dual element heating, and all elements heating simultaneously
2Adaptability or versatility
If heating elements are arranged in parallel to enable independent activation, then heating control flexibility is improved, but electrical connection complexity increases
Solution Approach 1:
The electrical connection system incorporates switching elements that can dynamically change the circuit configuration, allowing the heating elements to be connected in different patterns (individually, in pairs, or all together) based on operational requirements, providing flexible heating control without permanent complex wiring
Solution Approach 2:
Multiple heating elements share common electrical connections through the battery core and circuit board, merging the electrical connection structure to reduce overall complexity while maintaining the capability for independent activation of each heating element
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 configuration enables flexible and efficient heating of aerosol generating articles, ensuring rapid aerosol generation near the filter tip and overall high aerosol production, while reducing resistance and enhancing heating efficiency.
Implementation Method 1
a heater, configured to heat the aerosol generating article, where the heater includes at least: a first heating element, a second heating element, and a third heating element arranged in sequence along a longitudinal direction; and a first electrode, a second electrode, and a third electrode, operably electrically connected to the battery core, to guide a current on the heater
Data Source
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AI summary
The present application provides a vapor generating device, and a heater for a vapor generating device. The vapor generating device comprises: a battery cell for supplying power, and a heater, comprising a first heating element, a second heating element and a third heating element, which are longitudinally arranged in sequence; and a first electrode, a second electrode and a third electrode, which are operably electrically connected to the battery cell, and used to guide a current through the heater, wherein the first heating element and the second heating element are electrically connected in parallel between the first electrode and the second electrode; and the third heating element is connected between the first electrode and the third electrode. In the vapor generating device, the first heating element and the second heating element can only perform heating on a parallel connection basis at the same time, and the third heating element is selectively made to participate in simultaneous heating or not heating, thereby being beneficial to flexibly controlling the differential heating of different sections of a vapor generating product.