Blade Drive Device With Partitioned Chambers
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Solution Overview
Problem
Conventional blade driving devices face instability and durability issues due to the thin blade being exposed to the space containing the driving source, such as a coil or magnet, leading to poor operation and susceptibility to dust accumulation.
Innovation Solution
A blade driving device with a separate driving frame chamber and blade chamber, where the blade is supported by a thin metal plate structure, preventing direct exposure to the driving source and dust, ensuring smooth movement and increased durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the blade and driving source are disposed in a shared space without partition, then the device structure is simple, but the blade becomes unstable and operation becomes difficult
Solution Approach 1:
The internal space of the housing is divided into a driving source chamber and a blade chamber by a partition wall. The partition wall includes a through-hole that allows the blade to pass through while maintaining separation between the driving source and the blade, thus stabilizing the blade while keeping the structure relatively simple.
2Device complexity
If the blade is disposed in the space containing the driving source, then the device structure is simple, but dust produced by the driving source adheres to the blade reducing durability
Solution Approach 1:
The partition wall divides the housing into separate driving source chamber and blade chamber, preventing dust generated in the driving source chamber from reaching the blade in the blade chamber, thus improving blade durability while maintaining a relatively simple device structure.
3Ease of operation
If the blade is thin to achieve smooth operation, then the operation is smooth, but the blade becomes unstable when exposed to the driving source space
Solution Approach 1:
The partition wall creates a stable environment for the thin blade by separating it from the driving source, allowing the blade to be thin for smooth operation while the partition provides structural support and stability.
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 solution enables smooth operation and enhanced durability of the blade by isolating it from the driving source's effects and dust, improving the overall performance and longevity of the blade driving mechanism.
Implementation Method 1
those of the electromagnetically-driven type, that use magnets and coils as driving sources
Data Source
AI summary
Because a thin blade is disposed in a space that has a thickness in the optical axial direction, which contains a coil and a magnet, when the blade is driven the blade tends to become unstable, making smooth operation of the thin blade difficult. A blade driving device has a driving member; a frame that is provided with a driving frame chamber that contains the driving member; a blade supporting unit that has an opening and that structures a blade chamber that is separate from the driving frame chamber; and a blade member that is contained in the blade chamber, and that is moved by the driving member to advance into the opening.