Detection Device Pressing Mechanism for Rapid Membrane Liquid Supply
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Solution Overview
Problem
Existing methods for supplying liquid to a sensitive membrane in detection devices face challenges: pumps increase device size, while capillary action results in low liquid supply rates.
Innovation Solution
A detection device design that includes a storage member, a sensor chip with a sensitive membrane, and a pressing member that applies external force to press the storage member, eliminating the need for pumps and enhancing liquid supply speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a pump is used to supply liquid to the sensitive membrane, then the liquid supply rate is improved, but the device size increases
Solution Approach 1:
The patent extracts and eliminates the pump component from the liquid supply system, replacing it with a pressing member that directly presses the storage member to supply liquid. This removal of the pump achieves miniaturization while maintaining liquid supply capability through the pressing mechanism.
Solution Approach 2:
The patent replaces the mechanical pump system with a simpler pressing mechanism. The pressing member applies mechanical pressure directly to the storage member, substituting the complex pump mechanism with a more compact pressing structure that achieves both miniaturization and adequate liquid supply rate.
2Volume of moving object
If capillary action is used to supply liquid to the sensitive membrane, then the device size is reduced, but the liquid supply rate decreases
Solution Approach 1:
The patent applies preliminary action by using the pressing member to pre-compress the storage member before liquid supply. This preliminary pressing action creates a pressure gradient that accelerates liquid flow from the storage member to the sensitive membrane, overcoming the slow supply rate limitation of passive capillary action.
Solution Approach 2:
The pressing member can apply periodic or intermittent pressing forces to the storage member, creating pulsed liquid flow that maintains a higher average supply rate compared to passive capillary action, while still avoiding the need for a continuous pump operation.
3Productivity
If a pump is used to supply liquid, then the liquid supply rate is improved, but power consumption increases
Solution Approach 1:
The pressing member is designed to be self-powered, utilizing the user's pressing action or the weight of components to generate the necessary pressure for liquid supply. This eliminates the need for external power sources and motor-driven pumps, achieving both adequate liquid supply rate and zero power consumption during operation.
4Productivity
If a pump is used to supply liquid, then the liquid supply rate is improved, but the complexity of the device increases
Solution Approach 1:
The patent extracts and removes the pump component from the device architecture, simplifying the overall structure. The pressing member provides a more straightforward mechanical solution that reduces the number of moving parts, connection components, and control systems required, thereby reducing device complexity while maintaining liquid supply functionality.
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 design allows for miniaturization of the detection device and rapid liquid supply to the sensitive membrane, reducing power consumption and minimizing sensor deterioration.
Implementation Method 1
a pressing member that is provided below the sensitive membrane, and presses the storage member to supply the liquid to the sensitive membrane when the sensor chip is pressed downward
Data Source
AI summary
A detection device includes a storage member in which liquid is stored, a sensor chip that is provided on the storage member and has a sensitive membrane on a lower surface thereof, and a pressing member that is provided below the sensitive membrane, and presses the storage member to supply the liquid to the sensitive membrane when the sensor chip is pressed downward.