Removable Power Source Locking in Aerosol Provision Devices
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Solution Overview
Problem
Existing smoking alternatives, such as heat-not-burn products, lack effective mechanisms to prevent unsafe removal of power sources, which can lead to user injury or device damage due to temperature, fault states, or electrical properties.
Innovation Solution
An aerosol provision device with a locking mechanism that prevents removal of a removable power source based on device characteristics like temperature, fault states, time since last use, and electrical properties, using sensors and actuators to ensure safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a removable power source is used in the aerosol provision device, then ease of operation and user convenience are improved, but safety risks increase due to potential unsafe removal of hot or faulty power sources
Solution Approach 1:
The locking mechanism dynamically adjusts its state based on device characteristics. When the device is in a safe state (normal temperature, no faults), the locking mechanism allows power source removal. When the device is in an unsafe state (overheating, fault conditions), the locking mechanism automatically engages to prevent removal, thus adapting the removal restriction to the actual safety conditions.
Solution Approach 2:
The system continuously monitors device characteristics (temperature, fault states) and uses this feedback to control the locking mechanism. Sensors detect the device state and provide feedback to the control system, which then adjusts the locking mechanism accordingly, creating a closed-loop safety system that responds to real-time conditions.
2Object-affected harmful factors
If a locking mechanism is added to prevent unsafe power source removal, then user safety is improved, but device complexity increases
Solution Approach 1:
The locking mechanism is designed to be self-regulating based on monitored parameters. The system automatically engages or disengages the lock based on sensor inputs without requiring user judgment or intervention. This self-service approach simplifies the user interface while maintaining safety, as the system makes its own safety decisions based on objective sensor data.
Solution Approach 2:
The locking mechanism acts as an intermediary between the power source and the user. Rather than directly exposing the power source to the user, the locking mechanism mediates access based on safety conditions. This intermediary layer adds safety functionality while maintaining a relatively simple overall system architecture.
3Reliability
If the locking mechanism prevents power source removal during fault states, then device damage risk is reduced, but loss of time increases due to extended cooling or repair periods
Solution Approach 1:
The locking mechanism prevents the harmful action (removal of hot or faulty power sources) before it can occur. By proactively engaging the lock when unsafe conditions are detected, the system prevents potential user injury or device damage before these events can happen, rather than attempting to respond after the fact.
Solution Approach 2:
The system performs preliminary monitoring and preparation for potential safety issues. Sensors continuously monitor device characteristics and prepare the locking mechanism for engagement before any actual harm occurs. This preliminary action allows the system to respond quickly and safely when conditions warrant locking.
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
Enhances user safety by preventing removal of hot or faulty power sources, minimizing the risk of burns and device damage, and ensuring reliable operation.
Implementation Method 1
the electrical temperature sensor comprises a thermally sensitive actuator (e.g. a bimetallic element)
Data Source
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AI summary
An aerosol provision device is used with an aerosol generating material. The aerosol provision device has a power source receiving portion, and a removeable power source arranged within the power source receiving portion. The removeable power source supplies power for consumption by a component of the aerosol provision device. In addition, the aerosol provision device has a locking mechanism configured to prevent removal of the removeable power source from the power source receiving portion in dependence on a characteristic of the aerosol provision device.