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Low voltage and low power thermal bubble film type microfluid driving device

A technology of driving device and hot bubble, which is applied in measurement devices, electrochemical variables of materials, determination/inspection of microorganisms, etc., can solve the problems of loss of mobility, difficulty in integration, and inability to effectively control the direction of fluid flow, and achieve high speed. , the effect of reducing the power consumption of voltage

Inactive Publication Date: 2004-08-18
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Generally speaking, mechanical pumps belong to one-way flow, so they often cannot meet the needs of two-way drive
Moreover, piezoelectric-driven and electrostatic-driven pumps require an operating voltage of more than 110 volts; while electromagnetic-driven and thermal-pneumatic pumps consume about 1000 milliwatts (mW); Driven by an external large air source supply, the mobility is lost
The common disadvantage of today's microfluidic-driven pumps is that they cannot effectively control the direction of fluid flow, and it is difficult to integrate into a portable system

Method used

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  • Low voltage and low power thermal bubble film type microfluid driving device
  • Low voltage and low power thermal bubble film type microfluid driving device
  • Low voltage and low power thermal bubble film type microfluid driving device

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Embodiment Construction

[0027] Please refer to figure 1 with figure 2 , is a schematic diagram of the operation of the first embodiment of the present invention, its fluid structure 110 includes a fluid channel 111 for fluid passage and a fluid inlet and outlet 112 for fluid in and out; adjacent to its fluid channel 111 is provided with a hot air bubble film actuator, is It is composed of a heating sheet 121 arranged at the bottom of a sealed liquid chamber 120, and an elastic film 122 separating the fluid channel at the top of the sealed liquid chamber 120. Then make the heating plate 121 provide enough energy to make the liquid in the liquid chamber 120 reach a specific temperature to generate the bubble 123 through the electrode 124, and simultaneously, as figure 1 As shown, since the bubble 123 rises and pushes the elastic membrane 122 to expand the liquid chamber 120, while the volume of the fluid channel 111 is compressed to push the liquid outward; and, as figure 2 As shown, after the bubb...

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Abstract

The invention relates to a low voltage low power heat bubble thin film type micro-fluid drive apparatus, wherein the fluid arrangement includes a fluid channel, in which fluid fills and flow from and out from the opening of the fluid channel, a heat bubble thin film type actuator comprising heating plates arranged on the bottom of the confined fluid chamber, which is insulated from the fluid channel through elastic membrane and is filled with low-boiling point liquid.

Description

technical field [0001] The invention relates to a microfluid drive device, in particular to a low-voltage and low-power hot-bubble thin-film microfluid drive device. Background technique [0002] With the development of Micro Total Analysis Systems (μ-TAS), which can be widely used in analytical methods such as combinatorial chemistry, gene body and protein body technology, etc. A new era of magnitude. The micro-total analysis system integrates the biochemical or general chemical reactions in the experiment on a tiny chip, such as immobilizing a large number of biochemical substance fragments on the surface of the chip, and making the material fragments and various specimens in a similar way interaction between. [0003] However, some fluid processing steps are required to conduct this experiment, so that the micro-total analysis system can play its role, so that the substances in the chip can fully mix and react with the sample entering the chip. It is difficult to autom...

Claims

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Application Information

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IPC IPC(8): C12Q1/68G01N27/26G01N27/416G01N35/00
Inventor 庄世玮钟震桂陈仲竹
Owner IND TECH RES INST
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