Planar Vaporizer Induction Heating for Disposable Cartomizers
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Solution Overview
Problem
Existing e-cigarette designs face challenges in reducing the cost of disposable components, particularly the cartomizer, while ensuring user safety and preventing the use of inappropriate liquids, which can lead to low-quality or hazardous vaping experiences.
Innovation Solution
An aerosol provision system featuring a planar vaporizer with a heating element that uses capillary action to draw liquid to its surface and an induction heater coil to inductively heat the liquid, eliminating the need for complex electrical connections and reducing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional electrical connectors and wiring are used in disposable cartomizers, then reliable electrical connection is achieved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent extracts the electrical connection function from complex mechanical connectors and wiring systems, replacing them with a simplified magnetic coupling mechanism where magnets in the cartridge interact with a magnetometer in the control unit, eliminating the need for traditional electrical contacts in the disposable component
Solution Approach 2:
The patent replaces the mechanical electrical connector system with a magnetic field-based detection system, where the magnetometer detects the presence and orientation of magnets to establish electrical connectivity, substituting mechanical contact with electromagnetic interaction
2Reliability
If complex electrical connectors are used to ensure reliable connection, then electrical connectivity is maintained, but manufacturing cost increases
Solution Approach 1:
The patent removes complex electrical connectors from the disposable cartridge, retaining only simple magnets that are inexpensive to manufacture, while the expensive magnetometer remains in the reusable control unit
Solution Approach 2:
The patent implements a design where the disposable cartridge contains only simple, cheap magnetic components, while the expensive electronic control elements remain in the reusable control unit, allowing the disposable portion to be manufactured at low cost
3Adaptability or versatility
If users can refill cartomizers with any liquid, then flexibility is improved, but safety deteriorates due to potential use of inappropriate liquids
Solution Approach 1:
The patent implements a feedback system where the magnetometer detects the magnetic signature of the cartridge, and the control unit verifies this information before allowing operation, creating a verification mechanism that prevents use of incompatible or unsafe cartridges
Solution Approach 2:
The patent applies preliminary verification through magnetic field detection before the cartomizer can be activated, preventing the use of inappropriate liquids by blocking operation until proper cartridge identification is confirmed
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 design simplifies the production of disposable components, enhances user safety by preventing the inhalation of harmful substances, and provides a cost-effective and efficient aerosol generation process.
Implementation Method 1
the vaporizer is configured to draw source liquid from the reservoir to the vicinity of a vaporizing surface of the vaporizer through capillary action
Implementation Method 2
an induction heater coil operable to induce current flow in the heating element to inductively heat the heating element
Implementation Method 3
to inductively heat the heating element and so vaporize a portion of the source liquid
Implementation Method 4
vaporize a portion of the source liquid in the vicinity of the vaporizing surface of the vaporizer
Data Source
AI summary
An aerosol provision system for generating an aerosol from a source liquid, the aerosol provision system including: a reservoir of source liquid; a planar vaporizer comprising a planar heating element, wherein the vaporizer is configured to draw source liquid from the reservoir to the vicinity of a vaporizing surface of the vaporizer through capillary action; and an induction heater coil operable to induce current flow in the heating element to inductively heat the heating element and so vaporize a portion of the source liquid in the vicinity of the vaporizing surface of the vaporizer. In some example the vaporizer further comprises a porous wadding/wicking material, e.g. an electrically non-conducting fibrous material at least partially surrounding the planar heating element (susceptor) and in contact with source liquid from the reservoir to provide, or at least contribute to, the function of drawing source liquid from the reservoir to the vicinity of the vaporizing surface of the vaporizer. In some examples the planar heating element (susceptor) may itself include a porous material so as to provide, or at least contribute to, the function of drawing source liquid from the reservoir to the vicinity of the vaporizing surface of the vaporizer.