Induction Heating Cavity for Multi-Consumable Aerosol Devices
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Solution Overview
Problem
Existing heating devices for tobacco and non-tobacco products can only accommodate a specific type of consumable, limiting versatility and requiring a magnetic field induction coil for heating, which is inefficient for different types of consumables.
Innovation Solution
An aerosol generating device with a receiving cavity that can selectively receive two types of consumables, each positioned differently, and an induction coil that generates varying magnetic fields to heat either type, controlled by a detection unit and circuit to optimize power output based on the consumable type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a heating device is designed to accommodate a specific type of consumable, then the heating structure can be optimized for that consumable type, but the device cannot handle other types of consumables
Solution Approach 1:
The induction coil is designed to generate magnetic fields that can heat different types of susceptors (first and second susceptors) through a single unified heating structure. The receiving cavity accommodates multiple consumable types with different geometries, and the induction coil adjusts its operation to effectively heat whichever susceptor is present, eliminating the need for separate heating structures for each consumable type.
2Device complexity
If a single induction coil is used to heat different consumable types, then device complexity is reduced, but heating efficiency may be compromised for optimal performance
Solution Approach 1:
The induction coil's operational parameters are dynamically adjusted based on the type of consumable detected. The control circuit modifies the magnetic field generation characteristics according to whether a first or second type of consumable is present, allowing the single induction coil to achieve optimal heating efficiency for each consumable type rather than being fixed for one specific type.
Solution Approach 2:
A detection unit identifies which type of consumable is placed in the receiving cavity and provides feedback to the control circuit. Based on this feedback, the control circuit adjusts the induction coil's operation to match the appropriate consumable type, ensuring reliable and efficient heating while maintaining device simplicity.
3Device complexity
If different consumables are heated at the same position, then the device structure is simplified, but heating effectiveness is reduced for certain consumable types
Solution Approach 1:
The receiving cavity is divided into different regions (first portion and second portion) with distinct heating characteristics. The first type of consumable is positioned in the first portion while the second type extends into the second portion. The induction coil generates magnetic fields that can be effectively applied to each region according to the consumable type, providing locally optimized heating effectiveness without requiring completely separate heating zones.
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
Enables efficient heating of different consumables at suitable positions, optimizing power output and ensuring compatibility with multiple types of consumables, enhancing user flexibility and device performance.
Implementation Method 1
an induction coil, at least partially arranged around the receiving cavity; the induction coil being configured to generate a varying magnetic field, to induce heating of the first susceptor to heat the first type of consumable received in the receiving cavity, or induce heating of the second susceptor to heat the second type of consumable
Implementation Method 2
the induction coil being configured to generate a varying magnetic field, to induce heating of the first susceptor to heat the first type of consumable received in the receiving cavity
Data Source
Figure 1
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AI summary
Provided in the present application are an aerosol generating device and an aerosol generating system. The aerosol generating device comprises: a receiving cavity having an opening, the receiving cavity being configured to selectively receive one of a first type of consumable including a first susceptor and a second type of consumable including a second susceptor, the receiving cavity comprising a first portion and a second portion, the first portion being closer to the opening than the second portion, the first type of consumable being located in the first portion and keeping away from the second portion when being received in the receiving cavity, and the second type of consumable passing through the first portion and partially extending into the second portion when being received in the receiving cavity; and an induction coil, which is disposed around the receiving cavity and can induce heating of the first susceptor to heat the first type of consumable received in the receiving cavity or induce heating of the second susceptor to heat the second type of consumable. In the aerosol generating device, different types of consumables are received and heated at different positions in the receiving cavity, which is advantageous for heating different types of consumables at respective suitable positions.