Bidirectional Rotation Compensation for Dual-Strip Inhaler Torque Control
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Solution Overview
Problem
In powder-delivery inhaler devices with two medicine strips, the opposite rotation directions of the cover strips necessitate separate stroke compensation mechanisms, requiring a fool-proof design.
Innovation Solution
A rotation compensation mechanism with an active rotation member, driven rotation member, and damping assembly that generates torque between them, allowing for the same driving torque in both clockwise and counterclockwise rotations, using elastic, viscous grease, or magnetic dampers to manage torque within a preset threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate stroke compensation mechanisms are used for each medicine strip, then each mechanism can handle its specific rotation direction, but the device complexity increases and fool-proof design is required
Solution Approach 1:
The damping assembly is designed to work bidirectionally, allowing a single stroke compensation mechanism to handle both clockwise and counterclockwise rotation of cover strips. The damping element (elastic, viscous grease, or magnetic) generates torque in either rotation direction, enabling one mechanism to replace what would traditionally require two separate mechanisms, thus reducing device complexity while maintaining reliability
Solution Approach 2:
The damping assembly acts as an intermediary between the active rotation member and driven rotation member, generating controlled torque that accommodates bidirectional rotation. This intermediary mechanism allows the system to handle opposite rotation directions without requiring separate compensation mechanisms for each direction, effectively mediating the conflict between single-mechanism simplicity and multi-directional reliability
2Device complexity
If a single stroke compensation mechanism is used for both medicine strips, then device complexity is reduced, but it cannot handle opposite rotation directions effectively
Solution Approach 1:
The damping assembly is specifically designed with bidirectional capability, allowing the single stroke compensation mechanism to adapt to both clockwise and counterclockwise rotation directions. The damping element generates torque regardless of rotation direction, making the mechanism universal and adaptable to different rotation scenarios without requiring direction-specific designs
Solution Approach 2:
The damping assembly dynamically responds to rotation in either direction by generating appropriate torque. Whether the driven rotation member rotates clockwise or counterclockwise, the damping element (elastic, viscous grease, or magnetic) adjusts its torque generation accordingly, enabling the single mechanism to dynamically adapt to varying rotation directions and maintain effectiveness
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 mechanism ensures universal applicability to devices with opposite rotation directions without needing a fool-proof design, maintaining consistent torque and preventing damage to the mechanism.
Implementation Method 1
a damping assembly, positioned between the active rotation member and the driven rotation member and configured to generate torque between the active rotation member and the driven rotation member
Implementation Method 2
the damping assembly includes one or more of an elastic material damper, a viscous grease damper, and a magnetic damper
Implementation Method 3
the damping assembly includes one or more of an elastic material damper, a viscous grease damper, and a magnetic damper
Implementation Method 4
the damping assembly includes one or more of an elastic material damper, a viscous grease damper, and a magnetic damper
Data Source
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AI summary
This application provides a rotation compensation mechanism and a medicine delivery dispenser. The rotation compensation mechanism includes: an active rotation member, configured to be connected to a driving assembly and rotate under an action of the driving assembly; a driven rotation member, rotatably connected to the active rotation member and configured to wind a to-be-wound object; and a damping assembly, positioned between the active rotation member and the driven rotation member and configured to generate torque between the active rotation member and the driven rotation member, to enable the active rotation member to apply driving torque to the driven rotation member through the damping assembly. The driving torque is not greater than a preset threshold. The preset threshold is driving torque when the active rotation member rotates relative to the driven rotation member. The rotation compensation mechanism can perform a rotation compensation function.