Flavor Inhaler Hall-Sensor Layout for Compact Position Detection
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Solution Overview
Problem
Flavor inhalers face challenges in detecting the position of a moveable member with high sensitivity when the direction of its movement intersects with the surface on which the Hall sensor is arranged, leading to potential inefficiencies and reduced accuracy.
Innovation Solution
The flavor inhaler design includes a magnet in the moveable member with its poles aligned along a first surface, and a Hall sensor on a board arranged perpendicular to this surface, allowing for sensitive detection of the member's position, even when their directions intersect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the direction of movement of the moveable member intersects with the surface on which the Hall sensor is arranged, then the flavor inhaler can be made compact, but the magnetic field detection sensitivity is reduced
Solution Approach 1:
The patent changes the orientation of the magnet's magnetic field from being perpendicular to the board surface to being parallel to the board surface. Specifically, the magnet is arranged so that its magnetic field direction intersects with the surface on which the Hall sensor is arranged, allowing the Hall sensor to detect the magnetic field effectively even in a compact configuration where the moveable member's movement direction intersects with the board surface.
2Measurement precision
If the magnet is arranged with its poles along the first surface and the board is arranged perpendicular to it, then the position detection sensitivity is improved, but the device complexity increases
Solution Approach 1:
The patent integrates the Hall sensor directly onto the board structure, merging the sensing element with the mounting substrate. This combination simplifies the overall arrangement by reducing the number of separate components and their associated mounting operations, while still achieving the required perpendicular arrangement between the board and the magnet's magnetic field for optimal detection sensitivity.
3Measurement precision
If the Hall sensor is arranged to detect magnetic field parallel to the direction, then the detection sensitivity is increased, but the manufacturing precision requirements increase
Solution Approach 1:
The patent creates a magnetic field detection arrangement where the Hall sensor is positioned to detect the magnetic field in a direction parallel to the magnet's pole direction. This configuration establishes an optimal detection geometry that maximizes the magnetic field signal strength at the sensor location, thereby improving detection sensitivity while providing a well-defined manufacturing target for achieving the required precision.
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
This configuration enables precise detection of the moveable member's position, reducing wasteful heating and enhancing the safety and efficiency of the flavor inhaler by preventing unnecessary activation.
Implementation Method 1
the position of the slider is detected by a Hall sensor
Data Source
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AI summary
This flavor inhaler comprises a movable member that has a magnet and is able to move along a first surface, and a substrate on which a Hall sensor is disposed. The magnet is disposed on the movable member such that the direction passing through both poles of the magnet follows the first surface, and the substrate is disposed along a second surface that crosses said direction.