Microvalve having magnetic wax plug and flux control method using magnetic wax
AssigneeSamsung Electronics Co., Ltd.
InventorsKwang-wook Oh, Kak Namkoong, Chin-sung Park
Life of this patent
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Abstract
Provided is a microvalve having a magnetic wax plug which includes a micro fluidic structure having an inlet portion and an outlet portion, a magnetic wax plug provided at a predetermined section where the inlet portion and the outlet portion meet, existing in a solid state, melted at a temperature higher than a predetermined temperature, and reversibly moving along a magnetic field, so as to control flux of a fluid through the micro fluidic structure, a heating portion provided corresponding to the section and heating the magnetic wax plug to be melted, and a magnetic field application portion selectively applying a magnetic field to a position where the melted magnetic wax plug arrives.
Claims20
A microvalve having a magnetic wax plug, the microvalve comprising:
- a micro fluidic structure having an inlet portion and an outlet portion;
- a magnetic wax plug provided at a predetermined section where the inlet portion and the outlet portion meet, existing in a solid state, melted at a temperature higher than a predetermined temperature, and reversibly moving along a magnetic field, so as to control flux of a fluid through the micro fluidic structure;
- a heating portion provided corresponding to the section and heating the magnetic wax plug to be melted;
- and
- a magnetic field application portion selectively applying a magnetic field to a position where the melted magnetic wax plug arrives.
A microchip using a magnetic wax which performs a chemical reaction test with a small amount of a liquid test material using a micro fluidic structure formed on a substrate, the microchip comprising:
- a micro fluidic structure having a fine channel through which the liquid test material passes;
- and
- a magnetic wax member provided at a predetermined section of the micro fluidic structure, existing in a solid state, melted at a temperature higher than a predetermined temperature, and reversibly moving along a magnetic field, so as to control flux of a fluid through the micro fluidic structure.
A microchip unit using a magnetic wax including a microchip which performs a chemical reaction test with a small amount of a liquid test material using a micro fluidic structure formed on a substrate and a driving apparatus portion accommodating and driving the microchip, the microchip chip comprising:
- a micro fluidic structure having a fine channel through which the liquid test material passes;
- and
- a magnetic wax member provided at a predetermined section of the micro fluidic structure, existing in a solid state, melted at a temperature higher than a predetermined temperature, and reversibly moving along a magnetic field, so as to control flux of a fluid through the micro fluidic structure,
- wherein the driving apparatus portion comprises:
- a heating portion provided to correspond to a predetermined section of the micro fluidic structure and radiating heat to melt the magnetic wax member;
- and
- a magnetic field application portion selectively applying a magnetic field to a position where the melted magnetic wax member arrives.
Dependencies are inferred from the claim text.