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Fluid drive apparatus

A fluid-driven, fluid-based technology, applied in electromechanical devices, electrical components, etc., can solve problems such as inability to substantially manipulate particles to change direction, technical limitations, etc.

Inactive Publication Date: 2012-05-30
RAYDIUM SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the microfluidic system is a mechanical component with a complex structure, the mechanical component must be able to meet the requirements of very fine size, which has many technical limitations.
[0004] In addition, since the microfluidic system must be able to drive and manipulate particles, the microfluidic design that only has the function of driving fluid flow cannot actually control the particle to change direction during motion.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Please refer to Figure 1A-1B , which shows a first schematic diagram of the fluid driving device according to Embodiment 1 of the present invention. Such as Figure 1A-1B As shown, the fluid driving device 100 includes a substrate 110 , at least one electrode set 120 and a control unit 130 . The substrate 110 has at least one surface 110A. The electrode group 120 is disposed on the substrate 110 and includes a first electrode 121, a second electrode 122 and a third electrode 123, wherein the projection position of the second electrode 122 on the board surface 110A is located at the position of the first electrode 121 on the board surface 110A. Between the projecting position and the projecting position of the third electrode 123 on the board surface 110A. The control unit 130 is electrically connected to the electrode set 120 and drives the first electrode 121 , the second electrode 122 and the third electrode 123 respectively. When the control unit 130 drives the po...

Embodiment 2

[0048] Please refer to Figure 3A-3B , Figure 3A A schematic diagram showing a fluid drive device according to Embodiment 2 of the present invention, Figure 3B draw Figure 3A Partial cutaway view of a fluid drive. Such as Figure 3A-3B As shown, the fluid driving device 300 includes a substrate 310 and a plurality of electrode groups 321 - 329 , and the electrode groups 321 - 329 are arranged on the substrate 310 in an array. The structure of each electrode group is the same, and the electrode group 327 will be described here. The electrode group 327 includes a first electrode 327A, a second electrode 327B and a third electrode 327C, wherein the second electrode 327B is disposed around the first electrode 327A, and the third electrode 327C is disposed around the second electrode 327B. Preferably, both the second electrode 327B and the third electrode 327C are ring-shaped electrodes, so that the electrodes are concentrically arranged on the substrate 310 .

[0049] The...

Embodiment 3

[0059] Please refer to Image 6 , 7A ~7B, Image 6 A schematic diagram showing a fluid drive device according to Embodiment 3 of the present invention, Figures 7A-7B draw Image 6 A cross-sectional view of part of the electrode group during driving. Such as Image 6 As shown, the fluid driving device 500 includes a substrate 510 and a plurality of electrode groups, the electrode groups are arranged on the substrate 510 in an array, and each electrode group also includes a plurality of electrodes arranged in an array. In this embodiment, four electrodes are taken as a group for illustration. Such as Figures 7A-7B As shown, the electrode groups on the substrate 510 are divided into upper and lower layers, and the electrode groups on the upper and lower layers are arranged alternately. The electrode group 552 on the lower layer is taken as an example. The electrode groups 542, 562, 551, and 553 adjacent to the upper, lower, left, and right sides are located on the upper ...

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Abstract

The invention discloses a fluid drive set, which includes a substrate, at least an electrode group and a control unit. The substrate has at least a plate surface. The electrode group is arranged on the substrate, and includes a first electrode, a second electrode and a third electrode, wherein the projection position of the second electrode on the plate surface is between the projection positionsof the first electrode and the second electrode on the plat surface. The control unit is electrically connected with the electrode group, and drives the first, second and third electrodes respectively. When the control unit drives the first electrode and the third electrode with opposite polarities, and the polarity of the second electrode is the same as that of the third electrode, the fluid formed by the electrode group on the electric field drive substrate flows to the third electrode from the first electrode.

Description

technical field [0001] The present invention relates to a fluid driving device, and in particular to a fluid driving device using electroosmotic force. Background technique [0002] Due to the development of micro-electromechanical technology related technologies, many concepts such as bio-chips and bio-discs with micro-channel system designs have gradually attracted attention. Microchannel design usually requires a micropump as the source of fluid drive. [0003] The micropumps used in the microelectromechanical field include bubble pumps, thin film pumps, and diffusion pumps. The principle of these pumps driving the fluid is nothing more than using its own mechanical elements to achieve the purpose of pushing the fluid. Since the microfluidic system is a mechanical component with a complex structure, the mechanical component must be able to meet the requirements of very fine size, which has many technical limitations. [0004] In addition, since the microfluidic system ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K44/06
Inventor 王威周忠诚刘承贤徐琅朱光翰
Owner RAYDIUM SEMICON