Rotary Vane Compressor for Camera Lens Cleaning
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Solution Overview
Problem
Conventional extraneous-matter removing apparatuses with piston structures occupy large space due to the protrusion of shaft parts and generate significant operation sounds during air compression.
Innovation Solution
The apparatus employs a rotation-type air compressing unit with a cylinder, vanes, and a flow path, where vanes rotate to generate and eject compressed air, eliminating the need for a protruding shaft and reducing operation noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a piston structure is used to generate compressed air, then the air compression function is achieved, but the occupancy space is enlarged due to the protruding shaft part and its operation area
Solution Approach 1:
The patent replaces the traditional piston-crank mechanism with a rotary vane compressor structure. The rotary vane compressor uses rotating vanes within a cylindrical chamber to compress air, eliminating the need for a protruding crankshaft and its associated operation space. This substitution of mechanical systems achieves compactness while maintaining air compression functionality.
Solution Approach 2:
The invention transitions from linear reciprocating motion (piston) to rotational motion (vanes). By changing the dimension of motion from one-dimensional linear movement to two-dimensional rotational movement within the cylinder, the apparatus eliminates the need for external shaft operation area, thereby reducing occupancy space.
2Object-generated harmful factors
If a piston structure is used to generate compressed air, then the air compression function is achieved, but operation sound increases
Solution Approach 1:
The rotary vane compressor replaces the piston-crank mechanism, which is known for generating significant operational noise due to reciprocating motion and mechanical impacts. The rotary vane structure provides smoother operation with reduced mechanical impacts, thereby lowering operation sound while maintaining air compression efficiency.
3Volume of moving object
If the apparatus is miniaturized to save space, then occupancy space is reduced, but the air compression capability may be compromised
Solution Approach 1:
The rotary vane compressor uses dynamically rotating vanes that automatically adjust their position within the cylinder during rotation. This dynamic structure allows efficient compression of air within a compact volume, maintaining air compression capability while minimizing occupancy space. The rotating motion enables continuous compression cycles without requiring large stroke lengths.
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 miniaturizes the apparatus, saves space, and reduces operation noise while effectively removing extraneous matters from camera lenses.
Implementation Method 1
a vane 40 that is provided in the cylinder 20 to be rotatable around a rotation axis C and generates compressed air by rotating
Implementation Method 2
ejects compressed air generated by rotation of the vane 40 to the camera 100
Data Source
AI summary
A problem is for saving space of an extraneous-matter removing apparatus. In order to solve this problem, one aspect of embodiments is of an extraneous-matter removing apparatus for removing an extraneous matter attached to a camera and includes an air compressing unit. The air compressing unit includes a cylinder and a vane that is provided in the cylinder to be rotatable around a rotation axis, and ejects a compressed air generated by rotation of the vane to the camera.