Heating Chamber Aperture Geometry for Condensate Leak Control
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Solution Overview
Problem
Aerosol provision devices with enclosed heating chambers face issues of condensate accumulation and leakage due to apertures that regulate airflow, leading to user inconvenience.
Innovation Solution
Configure apertures in the device to be non-circular with a smallest dimension of less than or equal to 0.65 mm, perimeter of less than or equal to 3.40 mm, or area of less than or equal to 0.65 mm² to reduce condensate leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If apertures are used to regulate airflow in the heating chamber, then airflow control is improved, but condensate leakage increases
Solution Approach 1:
The patent changes the geometric parameters of the aperture (reducing size, modifying shape) to alter fluid dynamics. By making the aperture non-circular with specific dimension constraints, the invention optimizes airflow regulation while preventing condensate leakage through modified flow patterns and reduced condensate accumulation.
Solution Approach 2:
The patent applies asymmetry by specifying non-circular aperture shapes. This asymmetric geometry creates uneven flow patterns that prevent condensate from accumulating and leaking through the aperture, while still maintaining effective airflow regulation for device operation.
2Object-generated harmful factors
If aperture size is reduced to prevent condensate leakage, then condensate leakage is reduced, but airflow regulation capability deteriorates
Solution Approach 1:
The patent optimizes the balance between aperture size and shape parameters. By constraining the smallest dimension to specific values (≤0.65mm, perimeter ≤3.40mm, area ≤0.65mm²) while allowing non-circular shapes, the invention maintains adequate airflow regulation capability while sufficiently reducing condensate leakage risk.
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
Significantly reduces the risk of condensate leakage from the device, ensuring a smoother user experience by maintaining airflow regulation and preventing condensate accumulation.
Implementation Method 1
at least one heating unit for heating the aerosol-generating material during a session of use
Implementation Method 2
heating the aerosol-generating material to volatilize at least one component of the smokable material
Implementation Method 3
an aperture, which fluidically connects the heating chamber with the exterior of the aerosol provision device
Data Source
AI summary
Aerosol provision devices are disclosed and can be configured for generating aerosol from aerosol-generating material. These devices can include a heating chamber for receiving the aerosol-generating material; at least one heating unit for heating the aerosol-generating material during a session of use; and an aperture, which fluidically connects the heating chamber with the exterior of the aerosol provision device. The aperture is suitably configured to reduce the risk of condensate accumulating within the device during use. The aperture can be non-circular. In some embodiments the device can include a plurality of apertures.