Variable Watt-Density Heater for Uniform Smokable Material Heating
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Solution Overview
Problem
Existing smoking devices fail to provide a uniform and efficient heating profile for smokable materials, leading to inconsistent vaporization and potential discomfort during inhalation.
Innovation Solution
A heater with multiple heating regions of varying watt densities and configurations is used to heat smokable materials, allowing for different portions to be heated to different temperatures, achieving a more uniform temperature profile and reducing thermal discomfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single heating element with uniform watt density is used, then the device structure is simple, but the temperature profile across the smokable material is non-uniform leading to inconsistent vaporization
Solution Approach 1:
The heater is divided into multiple heating zones with different watt densities (e.g., first heating zone with lower watt density, second heating zone with higher watt density). This segmentation allows each zone to contribute differently to the overall temperature profile, achieving more uniform heating across the smokable material while maintaining a relatively simple overall heater structure.
Solution Approach 2:
Different portions of the heater are designed with locally optimized properties - specifically, different watt densities in different zones. The first heating zone has lower watt density to prevent overheating at the edges, while the second heating zone has higher watt density to ensure adequate heating in the center region, creating a flatter overall temperature profile.
2Productivity
If high watt density is applied across the entire heater, then heating efficiency is high, but thermal discomfort and potential burning of the smokable material occurs
Solution Approach 1:
The heater applies different watt densities to different zones: the first heating zone uses lower watt density to prevent thermal discomfort and burning at the edges where heat distribution is less efficient, while the second heating zone uses higher watt density to maintain heating efficiency in the center region where heat transfer is more effective.
Solution Approach 2:
The watt density parameter is varied across different heating zones rather than being uniform. This parameter change allows the system to optimize between heating efficiency and user comfort by reducing the watt density in zones prone to overheating while maintaining higher watt density in zones that require more heating power.
3Object-affected harmful factors
If low watt density is used across the heater, then thermal discomfort is reduced, but vaporization consistency and heating efficiency deteriorate
Solution Approach 1:
The heater is segmented into zones with different watt densities, allowing the second heating zone to operate at higher power to ensure consistent vaporization in the center region, while the first heating zone operates at lower power to prevent thermal discomfort at the edges.
Solution Approach 2:
Different zones are assigned different watt density levels appropriate to their specific heating requirements and thermal characteristics, ensuring that each zone contributes optimally to overall vaporization consistency without causing thermal discomfort in any particular region.
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 ensures consistent vaporization and reduces thermal discomfort by providing a flatter temperature profile across the smokable material, enhancing user experience.
Implementation Method 1
the one or more electrically conductive tracks have temperature coefficient of resistance characteristics such that the one or more electrically conductive tracks can act as resistive heaters
Data Source
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AI summary
Apparatus [100] arranged to heat smokable material to volatilise at least one component of the smokable material is described. In an example, the apparatus comprises at least one heater [200, 300] constructed and arranged to heat smokable material contained in use within the apparatus [100]. The heater [200, 300] has a plurality of heating regions [232, 234, 236] for heating different portions of smokable material contained in use within the apparatus [100]. At least a first heating region [232] of the heater has a different watt density from at least a second heating region [234] of the heater.