Mouthpiece Airflow Locking for Accidental Activation Prevention
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Solution Overview
Problem
Aerosol-generating devices are prone to inadvertent activation during transport, leading to substrate spillage or accidental aerosol generation, and lack user customization options for aerosol inhalation.
Innovation Solution
A mouthpiece with a locking mechanism that requires a sequential two-step movement to unlock airflow, combining rotational and compressive actions to prevent accidental activation and allow customizable airflow control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple mouthpiece design is used, then ease of operation is improved, but reliability deteriorates due to inadvertent activation during transport
Solution Approach 1:
The mouthpiece employs a preliminary locking action where the airflow control element is pre-positioned to block the airflow channel before use. The locking mechanism requires deliberate user action to unlock, preventing inadvertent activation during transport while maintaining ease of operation through a clear unlocking sequence.
Solution Approach 2:
The mouthpiece is divided into functionally independent segments: a locking element that controls access to the airflow control element, and the airflow control element itself that regulates aerosol flow. This segmentation allows each component to perform its specific function reliably while maintaining overall system simplicity.
2Reliability
If a locking mechanism is added to prevent accidental activation, then reliability is improved, but device complexity increases
Solution Approach 1:
The locking element and airflow control element are merged into a single integrated component structure. The locking element positions the airflow control element to block or allow airflow, combining two functions into one mechanism that adds reliability without proportionally increasing complexity.
Solution Approach 2:
The locking element acts as an intermediary between the user and the airflow control element. It mediates access to the airflow channel by requiring deliberate unlocking action, thereby preventing accidental activation while maintaining a relatively simple overall structure.
3Reliability
If a sequential two-step movement is required to unlock airflow, then reliability is improved by preventing accidental activation, but ease of operation deteriorates
Solution Approach 1:
The first movement of the locking element positions the airflow control element in a pre-blocked state, preparing the system for controlled activation. The second movement then selectively opens the airflow channel, ensuring deliberate user intent while maintaining operational simplicity through a clear two-step sequence.
Solution Approach 2:
The locking element is designed to be movable between different positions (locked and unlocked states) through user-applied force. This dynamic positioning allows the system to transition between blocked and open airflow states, providing reliable control while maintaining ease of operation through intuitive mechanical movement.
Data Source
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AI summary
The invention relates to a mouthpiece (10) for an aerosol-generating device comprising: an airflow channel (18) through the mouthpiece (10), an airflow control element (30), wherein the airflow control element (30) is configured to be movable from a first position to a second position, the airflow control element (30) being configured to block airflow (16) through the airflow channel (18) in the first position and to allow airflow (16) through the airflow channel (18) in the second position, wherein the airflow control element (30) is further configured to be movable from the first position to the second position via a first movement of the airflow control element (30), and a locking element (44), wherein the locking element (44) is configured to be arranged in a third position and a fourth position, the locking element (44) being configured to block the first movement of the airflow control element (30) in the third position of the locking element (44) and to allow the first movement of the airflow control element (30) in the fourth position of the locking element (44), wherein the locking element (44) is further configured to be movable from the third position to the fourth position via a second movement of the locking element (44).