Membrane Button Structure for Lit, Liquid-Resistant Aerosol Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Aerosol-generating devices face challenges with liquid ingress through buttons, potentially damaging internal components, and require improved lighting designs that maintain actuation capability while preventing foreign matter entry.
Innovation Solution
Incorporating a waterproof, transparent or translucent membrane sealed to the housing around the button's through-hole, which allows light from internal sources to pass through while reducing liquid ingress and supporting button operation by elastic deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a button is provided in the housing with a through-hole for actuation, then the device is operable and provides user interaction, but liquid and foreign material can enter the device through the through-hole causing damage to internal components
Solution Approach 1:
A membrane is provided across the through-hole in the housing. The membrane is flexible and deformable, allowing it to be pushed inward when the button is actuated, while still providing a barrier against liquid ingress. This resolves the contradiction by enabling button operation through elastic deformation of the membrane while maintaining protection against harmful liquid entry.
Solution Approach 2:
The membrane transitions from a static barrier to a dynamic component that deforms during button actuation. The membrane's ability to change shape and return to its original position enables the button to function while maintaining liquid protection, as the membrane dynamically adapts to the actuation force and then restores its sealing function.
2Object-affected harmful factors
If a membrane is provided across the through-hole to prevent liquid ingress, then protection against liquid damage is improved, but the button's actuation capability and tactile feedback may be compromised
Solution Approach 1:
The membrane is designed with flexible material properties that allow it to deform under button actuation force while maintaining its liquid barrier function. The membrane's flexibility ensures that button actuation remains possible, and its elastic recovery provides tactile feedback to the user, resolving the contradiction between protection and operability.
Solution Approach 2:
The membrane acts as a cushioning element between the button and the internal components. It absorbs and distributes the actuation force, providing tactile feedback to the user while protecting internal components from direct impact. This beforehand cushioning maintains button functionality while enhancing protection against liquid and foreign material.
3Object-affected harmful factors
If the membrane is fixed to the outer surface of the housing, then liquid protection is maximized, but the membrane interferes with button operation and is more susceptible to damage
Solution Approach 1:
The membrane is repositioned from the outer surface to the inner surface of the housing, changing its spatial dimension and relationship to the button. This dimensional change allows the membrane to seal the through-hole effectively while being pushed inward during actuation, eliminating interference with button operation and reducing susceptibility to external damage.
Solution Approach 2:
Instead of fixing the membrane to the outer surface where it would be exposed to damage and interfere with button pressing, the membrane is inverted to the inner surface. This inversion allows the button to press against the membrane from the outside while the membrane seals from the inside, resolving the contradiction between sealing effectiveness and operational ease.
4Illumination intensity
If lighting is provided through the button aperture, then visibility and user interface feedback are improved, but the button structure becomes more complex and may compromise liquid protection
Solution Approach 1:
The membrane serves multiple functions: it provides liquid protection, enables button actuation through deformation, and allows light transmission for illumination. By making the membrane transparent or translucent, it becomes a multi-functional component that simultaneously protects against liquid ingress and permits lighting feedback, resolving the contradiction between protection and visibility without adding structural complexity.
Solution Approach 2:
The membrane's optical properties (transparent or translucent) enable light to pass through it, providing illumination and visual feedback to the user. This optical characteristic allows the membrane to function as both a protective barrier and a light transmission medium, integrating lighting functionality without requiring additional structural elements that would compromise liquid protection.
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 membrane effectively prevents liquid damage to internal components and enhances lighting visibility while maintaining button functionality and aesthetics.
Implementation Method 1
The membrane may be transparent or translucent. The membrane may allow light from inside the housing to pass through the membrane.
Implementation Method 2
The membrane may be configured to be elastically deformed when the button is pressed.
Data Source
AI summary
An aerosol-generating device is provided, including: a housing having an outer surface, an inner surface, and a through-hole connecting the outer surface and the inner surface; a button at least partially arranged in the through-hole; and a membrane fixed to the housing and extending across the through-hole, a form-fit being provided between the housing and the button, and the form-fit being configured to retain the button in the through-hole against the button falling out of the through-hole towards an outside of the aerosol-generating device. An aerosol-generating system, including an aerosol-generating article and the aerosol-generating device is also provided. A method for actuating a switch of an aerosol-generating device is also provided.