Modular Heater Assembly for Precise Induction Shielding
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Solution Overview
Problem
Aerosol generating devices using induction heating methods face challenges in assembly efficiency due to the need for additional components like coils and shielding members, which can lead to assembly deviations, affecting heating performance and magnetic field leakage.
Innovation Solution
A modularized heater assembly with a coil assembly and shielding member, secured by brackets, to simplify assembly and maintain consistent induction heating performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If induction heating components (coil and shielding member) are added to the aerosol generating device, then heating capability is improved, but assembly time and manufacturing complexity increase
Solution Approach 1:
The device is divided into separate functional modules: a resistance heating module (heater) and an induction heating module (coil assembly with shielding member). Each module can be manufactured and assembled independently, reducing overall assembly time while maintaining both heating capabilities
Solution Approach 2:
The aerosol generating device is designed to support both resistance heating and induction heating methods through interchangeable heater assemblies. The coil assembly can be coupled with different heater types, allowing the same basic structure to serve multiple heating functions
2Adaptability or versatility
If multiple components (coil, shielding member, heater) are assembled together, then induction heating function is achieved, but assembly deviation occurs affecting performance
Solution Approach 1:
The coil and shielding member are pre-assembled into a integrated coil assembly unit before being installed in the device. This preliminary assembly ensures proper positioning and spacing between components, eliminating positioning errors that would occur during final assembly
Solution Approach 2:
A bracket structure serves as an intermediary component that holds both the coil and shielding member in precise relative positions. The bracket acts as a reference frame ensuring consistent spacing and alignment, preventing assembly deviation between the magnetic field generating components
3Ease of operation
If coil position deviates during assembly, then magnetic field radiation is affected, but heating efficiency deteriorates
Solution Approach 1:
The coil is pre-positioned and fixed to the bracket at the correct location before final assembly. This ensures the coil is always at the optimal position for magnetic field radiation, maintaining heating efficiency regardless of assembly variations
Solution Approach 2:
The design replaces complex mechanical adjustment mechanisms with a fixed bracket structure that inherently positions the coil correctly. This mechanical simplification eliminates the need for precise manual positioning while maintaining optimal magnetic field generation
4Ease of operation
If shielding member position deviates during assembly, then magnetic field leakage occurs, but interference with external devices increases
Solution Approach 1:
The shielding member is pre-assembled with the coil in a fixed configuration, ensuring it is always positioned to effectively contain the magnetic field. This preliminary positioning prevents magnetic field leakage without requiring complex adjustment mechanisms during final assembly
Solution Approach 2:
The bracket structure serves as an intermediary that mechanically couples the shielding member to the coil assembly, maintaining a fixed spatial relationship. This ensures the shielding member always occupies the correct position relative to the coil, preventing magnetic field interference with external electronic devices
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 modular design enhances assembly precision, reduces deviations, and prevents magnetic field leakage, ensuring stable heating efficiency and improved user experience.
Implementation Method 1
a coil configured to generate an alternating magnetic field when power is supplied
Implementation Method 2
a coil configured to generate an alternating magnetic field when power is supplied
Implementation Method 3
a shielding member arranged to surround side surfaces of the first bracket and the coil and configured to shield a magnetic field radiating from the coil
Data Source
AI summary
A heater assembly for an aerosol generating device includes a cover housing, and a coil assembly inserted into the cover housing, wherein the coil assembly includes a coil configured to generate an alternating magnetic field when power is supplied, a first bracket including a receiving space for accommodating the coil and supporting the coil accommodated in the receiving space, a second bracket coupled to one end of the first bracket and supporting the coil, and a shielding member arranged to surround side surfaces of the first bracket and the coil and configured to shield a magnetic field radiating from the coil to an outside of the heater assembly, wherein the first bracket and the second bracket fix the shielding member.