A liquid metal drive control system and control method integrating micropump and microvalve
A liquid metal, drive control technology, applied in pump control, liquid fuel engines, components of pumping devices for elastic fluids, etc. Metal electrical blocking effect and other issues to achieve the effect of improving control and fluidity
Active Publication Date: 2019-08-02
BEIJING MECHANICAL EQUIP INST
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[0005] In view of the above analysis, the embodiment of the present invention aims to provide a liquid metal drive control system and control method integrating micropumps and microvalves to solve the problem of pressure drive that is difficult to achieve volume miniaturization and electromagnetic pumps in the existing liquid drive methods. The technical problem of the large size of the liquid metal flow pipe in the drive and the inability to realize the electrical blocking effect of the liquid metal
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Embodiment 1
[0064] In a specific embodiment of the present invention, the liquid metal 1 drive control system integrating micropumps 4 microvalves provided by the present invention is used in the field of radio frequency antennas. Taking a frequency reconfigurable monopole antenna as an example, the traditional monopole The metal copper in the sub-antenna is replaced with liquid metal 1.
[0065] (1) The substrate of the radio frequency antenna and the flow channel structure of the liquid metal 1 are prepared by using PDMS, and the cross section of the flow channel structure adopts a rectangular cross section.
[0066] (2) The PDMS cover plate and the base structure are sealed by a plasma method to form a flexible micro-channel 2 for the radio frequency antenna.
[0067] (3) The micropump and the microvalve are respectively integrated with the flexible microchannel 2 of the radio frequency antenna to form an integrated micropump 4 and an integrated microvalve 5 .
[0068] (4) Fill the liqu...
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The invention relates to a liquid metal driving control system integrating a micro pump and a micro valve, and belongs to the technical field of liquid metal driving systems. The liquid metal drivingcontrol system is used for solving the technical problems that in an existing liquid metal driving mode, volume miniaturization is difficult to achieve by pressure driving, and the electrical blockingeffect of liquid metal cannot be achieved due to the fact that the liquid metal flow pipe size is large during electromagnetic pump driving. The liquid metal drive control system comprises a liquid metal storage tank, a flexible micro-channel, the integrated micro pump and the integrated micro valve; the liquid metal storage tank sequentially communicates with the integrated micro pump and the integrated micro valve through the flexible micro-channel; the integrated micro pump is used for driving the liquid metal to flow in the flexible micro channel; the integrated micro valve is used for controlling electrical conduction and blocking of the liquid metal in the flexible micro-channel; and the width and height of the flexible micro-channel are from the micrometer stage to the millimeter stage. The system is used for realizing high-precision flow drive control and physical electrical blocking of the liquid metal in a micro-channel structure, and dynamic reconstruction of microstructuremorphology is further achieved.
Description
technical field [0001] The invention relates to the technical field of liquid metal drive control, in particular to a liquid metal drive control system and control method integrating micropumps and microvalves. Background technique [0002] In recent years, with the continuous development of the performance of liquid metal, different material ratios can be used to achieve different low-temperature melting points, and the large deformation and fluidity of liquid metal are integrated with the microstructure to realize the micro-flow of liquid metal in the microchannel structure , has become a new field with great development prospects. Liquid metal combines the excellent properties of traditional rigid and flexible materials. Currently, there are five metals with melting points close to or below room temperature: francium, rubidium, cesium, mercury and gallium. Among them, francium is radioactive, cesium and rubidium will react violently when in contact with air, mercury is t...
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IPC IPC(8): F04B43/12F04B49/22F04B53/10
CPCF04B43/12F04B49/22F04B53/10
Inventor 李平许诺王忠晶臧金良刘秀洁
Owner BEIJING MECHANICAL EQUIP INST