Aerosol Device Button Membrane for Liquid Sealing and Light Transmission
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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, but liquid can ingress through the through-hole and damage internal components
Solution Approach 1:
A membrane is provided across the through-hole in the housing. The membrane acts as a flexible barrier that prevents liquid ingress while allowing the button to be actuated from the outside. The membrane can be pushed inward by the button during actuation but returns to its original position, maintaining the liquid barrier function.
Solution Approach 2:
The membrane serves as an intermediary element between the external environment and the internal components of the device. It mediates the button actuation force while blocking liquid penetration, allowing the button to function without direct exposure to liquid.
2Illumination intensity
If light sources are provided inside the housing for illumination, then the device has lighting functionality, but the button area remains vulnerable to liquid entry
Solution Approach 1:
The membrane provides a continuous liquid barrier across the button through-hole while allowing light from internal sources to pass through. The membrane material is selected to be transparent or translucent, enabling both lighting functionality and liquid protection simultaneously.
Solution Approach 2:
The membrane is made from a composite material or specially formulated material that combines multiple properties: it is liquid-impermeable, optically transparent/translucent, and mechanically flexible enough to accommodate button actuation. This single material solution addresses multiple requirements.
3Object-affected harmful factors
If the membrane is made opaque to block liquid, then liquid ingress is prevented, but light from internal sources cannot pass through
Solution Approach 1:
The membrane is specifically designed as a thin film with selective permeability properties. It is made from materials like fluoropolymers, silicones, or other liquid-impermeable yet optically clear materials that allow light transmission while blocking liquid penetration at the molecular level.
Solution Approach 2:
The membrane material properties are carefully selected and tuned to achieve the desired balance: optical transparency for light transmission, liquid impermeability for protection, and appropriate mechanical flexibility for button actuation. The thickness and material composition are optimized parameters.
4Object-affected harmful factors
If the membrane is fixed to the outer surface of the housing, then liquid sealing is improved, but the membrane interferes with button operation
Solution Approach 1:
The membrane is positioned and anchored in a way that separates its sealing function from its actuation function. The membrane extends across the through-hole and is fixed to the housing, creating a planar barrier, while the button actuates perpendicular to this plane, allowing independent optimization of both sealing and operation.
Solution Approach 2:
The membrane is designed with distinct functional zones: a sealed perimeter region fixed to the housing for liquid sealing, and a central region that remains free to deform during button actuation. This segmentation allows different parts of the membrane to perform different functions simultaneously.
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, the button being configured to be pressed in a pressing direction; a switch; an actuator, in which pressing the button in the pressing direction operates the switch via the actuator; and at least one guide pin extending into a corresponding at least one guide hole in the actuator, the actuator being configured to carry out a tilting motion when the button is pressed in the pressing direction. A method for actuating a switch of an aerosol-generating device is also provided.