Integrated Heater Tracks for Compact Smoking Temperature Control
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Solution Overview
Problem
Existing electrically heated smoking systems are complex and require numerous components, making them difficult to manufacture and increasing their size and cost.
Innovation Solution
An electrically heated smoking system utilizing electrically conductive tracks on an insulating substrate that function as both a heater and a temperature sensor, allowing for reduced component count and integration of electronics, along with a thermally insulating material to minimize heat loss and protect the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional separate heater and temperature sensor components are used, then temperature control function is achieved, but device complexity and component count increase
Solution Approach 1:
The patent combines the heater and temperature sensor into a single integrated component. The heating element includes both resistive heating functionality and temperature sensing capability through integrated thermistors or temperature-dependent resistance elements, eliminating the need for separate temperature sensor components and reducing overall device complexity.
Solution Approach 2:
The heating element is designed to perform multiple functions: it serves as both the heat source (through resistive heating) and the temperature sensor (through integrated thermistors or temperature-dependent resistance). This multi-functional design reduces component count while maintaining reliable temperature control.
2Adaptability or versatility
If multiple separate components are used for heater and electronics, then functional requirements are met, but manufacturing difficulty increases
Solution Approach 1:
The patent integrates heating traces, temperature sensing elements, and electronic circuitry onto a single substrate or flexible circuit board. This consolidation allows all components to be manufactured together in a single production process, significantly easing manufacturing complexity compared to assembling multiple separate components.
Solution Approach 2:
The heating element uses temperature-dependent resistance characteristics of integrated thermistors or metal traces to enable temperature sensing without additional components. By utilizing the inherent electrical properties of the heating element materials, the system achieves temperature measurement capability through parameter changes rather than additional hardware.
3Power
If conventional heating elements are used, then heating function is provided, but size of the system increases
Solution Approach 1:
The heating element is constructed using thin flexible substrates with printed or deposited conductive traces. This thin-film construction provides the necessary heating function while occupying minimal space, allowing the system to maintain compact dimensions without sacrificing heating capability.
Solution Approach 2:
By integrating the temperature sensor and control electronics directly onto the heating element substrate, the patent eliminates the need for separate housing and mounting structures for these components. This consolidation significantly reduces the overall system volume while maintaining full heating and temperature control functionality.
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 system achieves a smaller, more cost-effective design with flexible heat distribution and temperature control, eliminating the need for separate temperature sensors and reducing the risk of burning.
Implementation Method 1
the one or more electrically conductive tracks can act as both a resistive heater and as a temperature sensor
Implementation Method 2
the one or more electrically conductive tracks having temperature coefficient of resistance characteristics such that the one or more electrically conductive tracks can act as both a resistive heater and as a temperature sensor
Implementation Method 3
a thermally insulating material for insulating the at least one heater
Data Source
Figure 1a~1d(iii)
Figure 2a~2e(iii)
Figure 3a~3f
AI summary
There is provided an electrically heated smoking system for receiving an aerosol-forming substrate (407). The system comprises an electrically heated smoking system for receiving an aerosol-forming substrate, the system comprising: at least one heater (400) for heating the substrate to form the aerosol, the at least one heater comprising one or more electrically conductive tracks (403) on an electrically insulating substrate (401); a power supply for supplying power to the at least one heater; and a thermally insulating material for insulating the at least one heater.