Aerosol Device Outer Casing Battery Safety
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Solution Overview
Problem
Existing aerosol generating devices, such as heat-not-burn devices, face challenges in ensuring battery safety and minimizing the risk of user injury due to potential battery failures like explosions or overheating.
Innovation Solution
The aerosol generating device features a robust main body structure with an outer casing that forms a continuous safety belt around the battery, including an inner and outer casing with a secure fit, and venting holes for thermal management, ensuring protection against battery failures and providing a secure, aesthetically pleasing design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a robust outer casing structure is implemented to protect against battery failure, then user safety is improved, but device complexity increases
Solution Approach 1:
The outer casing is divided into multiple segments (front casing, rear casing, lateral walls) that can be separately manufactured and assembled. This segmentation allows each component to be optimized for its specific protective function while maintaining overall structural integrity, resolving the contradiction between robustness and manufacturing complexity.
Solution Approach 2:
The patent employs a nested structure where the battery is housed within an inner casing that is itself contained within the outer casing. This nested arrangement provides multiple layers of protection against battery failure while organizing components efficiently, thereby improving safety without proportionally increasing overall device complexity.
2Reliability
If venting holes are added for thermal management, then battery safety is improved, but device aesthetics worsen
Solution Approach 1:
The venting holes are strategically positioned in specific locations on the outer casing where they are less visually prominent. The size, shape, and distribution of the holes are optimized to provide adequate thermal management functionality while minimizing their visual impact on the overall device appearance, thus resolving the contradiction between safety functionality and aesthetic quality.
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 effectively enhances user safety by containing battery failures and ensuring proper ventilation, reducing the risk of injury and improving the device's robustness and aesthetic appeal.
Implementation Method 1
heating an aerosol generating substrate to generate an aerosol for inhalation
Implementation Method 2
the outer casing forms a single piece... the outer casing forms a continuous safety belt around the battery... form a physical barrier allowing to retain the internal structure of the battery
Implementation Method 3
heating an aerosol generating substrate by conduction, convection, and/or radiation
Implementation Method 4
heating an aerosol generating substrate by conduction, convection, and/or radiation
Implementation Method 5
heating an aerosol generating substrate by conduction, convection, and/or radiation
Data Source
AI summary
The present invention includes an aerosol generating device comprising a main body configured to receive an aerosol generating article. The main bodyincludes an outer casing having an inner surface and an outer surface;an inner casing having an inner surface and an outer surface;an inner cover having an inner surface and an outer surface;an outer cover having an inner surface and an outer surface, the outer cover being positioned over the inner cover, a periphery of the outer cover contacting a periphery of the outer casingwhereinthe inner surfaces of the outer casing and the outer cover entirely cover the outer surfaces of the inner casing and the inner cover and whereinthe outer casing forms a single piece.