Swing Rotor Assembly with Centrifugal Bucket Angle Fixing
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Solution Overview
Problem
Existing centrifuge bucket fixing mechanisms are complex, prone to vibration, and require batteries for power, complicating the structure and increasing manufacturing costs.
Innovation Solution
A swing rotor assembly with a U-shaped curved portion and a bucket fixing portion using an electromagnet powered by DC supply, allowing the bucket to be fixed at a desired angle by centrifugal force without batteries, simplifying the structure and reducing vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a solenoid valve is used to maintain the bucket inclination angle, then the bucket can be fixed at a predetermined angle for discharge, but the structure becomes more complex and requires a battery, increasing vibration and manufacturing cost
Solution Approach 1:
The patent removes the solenoid valve and battery components from the system. Instead of using an active angle maintenance mechanism, the invention relies on the centrifugal force generated during rotation to naturally maintain the bucket at the desired inclination angle, thereby simplifying the structure and eliminating the need for additional power sources and control valves
Solution Approach 2:
The system uses the centrifugal force generated by the rotor's own rotation to maintain the bucket's inclination angle without requiring external control mechanisms. The bucket's weight and the centrifugal force work together to automatically position the bucket at the correct angle for discharge, making the system self-regulating
2Ease of operation
If a solenoid valve and battery are used to operate the angle maintenance means, then the bucket can be held at a fixed angle, but severe vibration occurs depending on battery weight differences
Solution Approach 1:
The patent eliminates the battery and solenoid valve components that caused vibration. By removing these heavy components and their associated weight variations, the invention fundamentally resolves the vibration problem while maintaining the bucket angle control function through centrifugal force alone
3Duration of action of moving object
If two solenoids are used due to short operating time, then the bucket angle can be maintained, but the structure becomes more complex and manufacturing cost increases
Solution Approach 1:
The invention removes the entire solenoid valve system including multiple solenoids. The shorter operating time requirement is addressed by using a single, simpler mechanism based on centrifugal force that can maintain the bucket angle throughout the discharge phase without requiring multiple components or complex control systems
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 assembly improves productivity and reduces unit prices by simplifying the bucket fixing mechanism, ensuring stable power supply, and enhancing separation efficiency through reduced noise and vibration.
Implementation Method 1
a bucket fixing portion using an electromagnet powered by DC supply, allowing the bucket to be fixed at a desired angle
Implementation Method 2
a bucket fixing portion formed on one side of the bottom surface of the U-shaped curved portion to fix the position of the decanting kit tilted by centrifugal force
Data Source
AI summary
The present invention relates to a swing rotor assembly for a centrifuge, and more particularly, to a swing rotor assembly for a centrifuge equipped with a bucket fixing portion that fixes the bucket's position to facilitate separation and discharge after centrifuging a sample such as blood or bone marrow put into a decanting kit mounted on a bucket of a centrifuge. According to the present invention, the swing rotor assembly comprising: a rotor head unit consisting of a U-shaped curved portion formed symmetrically to mount the bucket and a bucket fixing portion formed on one side of the bottom surface of the U-shaped curved portion to fix the position of the decanting kit tilted by centrifugal force; a bucket in which a decanting kit is inserted and mounted, installed in the U-shaped curved portion, and rotated up and down by centrifugal force according to the rotation of the rotor head unit; and a driving unit consisting of a rotating shaft portion mounted on the central bottom of the rotor head unit, a driving transmission portion that transmits driving power to the rotating shaft portion, and a power supply portion connected to the rotating shaft portion to supply DC power to the bucket fixing portion.