Electromagnetic Micropump With Permanent Magnets and Winding Body
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
As micropumps miniaturize, there is a growing need for a simple structure and efficient battery usage due to reduced battery capacity, necessitating a design that minimizes power consumption while maintaining functionality.
Innovation Solution
A micropump design featuring a head portion with movement and fixing guides, and a body portion with permanent magnets and a winding body, allowing for efficient electromagnetic movement with low power requirements, enabling the micropump to operate with minimal power consumption by utilizing instantaneous electric current.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If micropump size is miniaturized, then device complexity is reduced and battery capacity is decreased, but power consumption efficiency becomes insufficient
Solution Approach 1:
The micropump employs periodic electromagnetic actuation through a winding body that receives alternating current, creating oscillating electromagnetic forces that periodically drive the plunger back and forth. This periodic action enables continuous fluid pumping with minimal average power consumption, as the system only consumes significant energy during the active pumping phases rather than continuously.
Solution Approach 2:
The patent replaces traditional mechanical drive mechanisms (such as motors, gears, or cam systems) with an electromagnetic actuation system consisting of a winding body and permanent magnets. This substitution eliminates complex mechanical transmission components, reducing overall device complexity while achieving efficient power conversion and actuation suitable for miniaturized applications.
2Device complexity
If micropump structure is simplified, then device complexity is reduced, but power consumption increases
Solution Approach 1:
The patent merges multiple functions into integrated components: the winding body serves both as a structural support and as the electromagnetic actuator; the permanent magnets are directly mounted on the plunger assembly, eliminating the need for separate magnet housings or mounting mechanisms; the guide structure provides both mechanical guidance and magnetic flux path. These merges reduce component count and structural complexity while maintaining efficient electromagnetic coupling and low power consumption.
Solution Approach 2:
The core assembly (plunger with permanent magnets) serves multiple functions: it acts as the moving component for fluid displacement, the magnetic source for electromagnetic interaction, and the moving element guided by the guide structure. The winding body simultaneously provides electromagnetic actuation and structural support. This multi-functionality reduces the number of separate components needed, simplifying the overall structure while maintaining efficient power usage.
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 achieves low power consumption and efficient operation, allowing for the miniaturization of the micropump while ensuring effective fluid transfer, even with reduced battery capacity.
Implementation Method 1
a winding body (210) surrounding the core (211), a first permanent magnet (231) disposed at a lower end of a second side of the core (211), a second permanent magnet (232) disposed at a lower end of a first side of the core (211)
Data Source
AI summary
Proposed is a micropump. The micropump includes a head portion including a first and second movement guides and a first tip, and includes a body portion having at least a portion thereof accommodated in the head portion, the body portion including a core, a winding body, a first permanent magnet, a second permanent magnet, a first fixing guide, and a second fixing guide. The first movement guide and the first fixing guide are famed so as to correspond to each other, the second movement guide and the second fixing guide are formed so as to correspond to each other, a pole of the first permanent magnet faces or opposes a lower end contact surface of the core, and a facing direction of a pole of the second permanent magnet is same as a facing direction of the first permanent magnet.