Inductively Heatable Susceptors Integrated into Casing Members
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Solution Overview
Problem
Current aerosol generating devices using induction heating systems are bulky due to the attachment of susceptors to the heating chamber, which hinders the compactness and durability of the device.
Innovation Solution
The integration of inductively heatable susceptors within the casing members of the heating chamber, which act as both heating elements and structural fasteners, optimizing their positioning for efficient heating and securing the casing members, thereby enhancing compactness and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If susceptors are attached to the heating chamber, then heating function is achieved, but device bulkiness increases
Solution Approach 1:
The patent merges the susceptor and heating chamber into a single integrated structure. The susceptor forms part of the heating chamber wall itself, eliminating the need for separate attached susceptors. This integration maintains the heating function while reducing device bulkiness, as the heating elements are embedded within the chamber structure rather than added as external components.
Solution Approach 2:
The heating chamber wall serves multiple functions: it provides structural containment for the heating chamber and simultaneously acts as the inductively heatable susceptor for heating the aerosol substrate. This multi-functionality eliminates the need for separate dedicated heating elements, reducing overall device volume while maintaining effective heating capability.
2Volume of moving object
If susceptors are integrated within casing members, then compactness is improved, but structural securing must be enhanced
Solution Approach 1:
The casing members are designed to cooperatively engage with the integrated susceptors, creating a unified structural assembly. The susceptors formed as part of the casing members provide both structural support and heating function, ensuring secure fastening while maintaining compact dimensions. The integration ensures that the heating elements are firmly embedded within the casing structure.
3Ease of manufacture
If susceptors are attached externally, then manufacturing is simplified, but device durability is reduced
Solution Approach 1:
The susceptors are formed as integral parts of the casing members during the manufacturing process, creating a durable unified structure. This integration ensures that the heating elements are permanently embedded within the casing, preventing detachment or misalignment issues that would reduce device durability. The cooperative engagement of casing members with integrated susceptors ensures long-term structural integrity.
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 allows for a compact, durable, and efficient heating apparatus that rapidly and uniformly heats the aerosol substrate without increasing the device's bulkiness, ensuring secure fastening and ease of manufacturing.
Implementation Method 1
an induction coil is provided in the device and an inductively heatable susceptor is provided to heat the aerosol generating substrate. Electrical energy is supplied to the induction coil when a user activates the device which in turn generates an alternating electromagnetic field. The susceptor couples with the electromagnetic field and generates heat
Implementation Method 2
The susceptor couples with the electromagnetic field and generates heat which is transferred, for example by conduction, to the aerosol generating substrate
Data Source
AI summary
A heating apparatus for an aerosol generating device is disclosed. The heating apparatus comprises a first casing member, a second casing member, and one or more inductively heatable susceptors. The first casing member, the second casing member and the one or more inductively heatable susceptors cooperatively engage to form a tubular heating chamber for receiving at least part of an aerosol generating substrate. The one or more inductively heatable susceptors are arranged to couple the first casing member to the second casing member.