Microfluidic control detection system and refrigerator
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing microfluidic control detection systems face challenges in achieving high weighing accuracy due to the movement of the weighing scale with the sample platform, affecting the concentration of the sample liquid and resulting in lower detection accuracy, and require complex clamping mechanisms that increase structural complexity and occupy more space.
Innovation Solution
A microfluidic control detection system with a fixed weighing platform and a bracket that moves independently to lift and support the sample cup, using an annular frame to naturally lift and detach the cup without affecting weight measurement, and an oscillator for thorough mixing of the sample and buffer solution, simplifying the structure and control logic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the weighing scale moves with the sample platform to enable automatic liquid suction and microfluidic chip connection, then the system achieves automated operation, but the weighing precision is greatly affected
Solution Approach 1:
The system divides the weighing function from the moving sample platform by placing the weighing scale on the fixed support frame. This segmentation allows the sample platform to move for automated operations while the weighing scale remains stationary to maintain precision.
Solution Approach 2:
The patent introduces an intermediary mechanism where the sample cup is transferred from the weighing platform to the sample platform via a lifting mechanism. This intermediary transfer process allows automated operation without compromising weighing accuracy, as the weighing occurs on the fixed platform before transfer.
2Reliability
If a clamping mechanism is used to hold the sample cup on the moving sample platform, then the sample cup can be securely transported, but the structural complexity increases
Solution Approach 1:
The sample cup design incorporates self-locking features that allow it to be securely held on the sample platform through its own structural characteristics rather than requiring an external clamping mechanism. The cup's geometry and the platform's features work together to provide secure holding without additional complex components.
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 system ensures high-precision weight measurement and accurate detection results by keeping the weighing platform stationary during sample cup movement, reducing structural complexity, and optimizing space usage, making it suitable for integration into refrigerators for convenient and accurate food ingredient analysis.
Implementation Method 1
a weighing platform, fixedly set on a support frame, and configured to measure weight of a sample contained in a sample cup placed on it
Implementation Method 2
a sample cup is oscillated for a certain time with an oscillator to extract residue components from the sample
Data Source
AI summary
A microfluidic control detection system for a refrigerator and a refrigerator. The microfluidic control detection system includes: a microfluidic biochip with an inlet, a suction port, and a detection pool formed inside, which are sequentially interconnected through microchannels; a weighing platform, fixedly set on a support frame; a buffer solution driving device, configured to deliver a predetermined amount of buffer solution matching the weight of the sample to the sample cup; a bracket, configured to move in a controlled manner or an operable manner, driving the sample cup to move to a highest position where the sample liquid in the sample cup can contact the inlet of the microfluidic biochip; and a detection mechanism, configured to detect the detection pool to obtain predetermined detection parameters of the sample liquid, offering high detection accuracy.