Centrifugal valve control apparatus

Patent metadata

Field	Value
Publication number	US-11035497-B2
Application number	US-201916516769-A
Country	US
Kind code	B2
Filing date	Jul 19, 2019
Priority date	Jul 20, 2018
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

Provided is a centrifugal valve control apparatus including: a body part including a body having a chamber and a channel connected to the chamber, and a valve configured to open and close the channel; a heating part coupled to the body and including a heating member disposed at a position corresponding to the valve; and a rotation driving part configured to rotate the body part and the heating part together, wherein the valve is formed to open and close the channel by the heating member while the body part and the heating part rotate together. Accordingly, the valve of the centrifugal valve control apparatus may be accurately controlled.

First claim

What is claimed is:

1. A centrifugal valve control apparatus comprising:
a body part including a body having a chamber and a channel connected to the chamber, and a valve configured to open and close the channel;
a heating part coupled to the body, and including a heating member disposed at a position corresponding to the valve;
a rotation driving part configured to rotate the body part and the heating part together; and
a battery configured to supply power to the heating member,
wherein the valve is formed to open and close the channel by the heating member while the body part and the heating part rotate together, and
wherein a plurality of batteries are provided on the heating part and symmetrically disposed.

2. The centrifugal valve control apparatus of claim 1 , wherein:
the body is formed of a tube having a predetermined height; and
the heating part is formed of a substrate.

3. The centrifugal valve control apparatus of claim 1 , wherein:
each of the chamber and the channel is provided in the body.

4. The centrifugal valve control apparatus of claim 1 , wherein:
the valve is provided in the body; and
the heating member is provided at a lower part of the heating part.

5. The centrifugal valve control apparatus of claim 1 , wherein:
a plurality of channels are provided in the body, and a plurality of valves are formed in the channels, respectively.

6. The centrifugal valve control apparatus of claim 1 , wherein the battery is formed to supply the power to one or more heating members provided in the heating part.

7. The centrifugal valve control apparatus of claim 1 , wherein the battery is disposed at a center of the heating part.

8. The centrifugal valve control apparatus of claim 1 , wherein the rotation driving part includes a rotating shaft coupled to a rotation center of each of the body and the heating part;
a driving motor configured to rotate the rotating shaft; and
a controller configured to control driving of the driving motor.

9. The centrifugal valve control apparatus of claim 1 , further comprising a heat transfer member provided between the valve and the heating member.

10. The centrifugal valve control apparatus of claim 9 , wherein the heat transfer member is formed of a material in which at least one of diamond, silver, aluminum oxide, boron nitride, zinc oxide, and aluminum nitride is included in a matrix including at least one of epoxy, silicon, urethane, and acrylate.

11. The centrifugal valve control apparatus of claim 1 , wherein the valve is formed of a phase transition material melted by heating of the heating member.

12. The centrifugal valve control apparatus of claim 1 , further comprising a switch configured to turn on or off electrical connection between the heating member and the battery.

13. The centrifugal valve control apparatus of claim 1 , further comprising a fixing unit configured to fix the heating part to the body part.

14. The centrifugal valve control apparatus of claim 13 , wherein the fixing unit includes a fixing member provided on at least one of an outer side or a center of each of the body part and the heating part.

15. The centrifugal valve control apparatus of claim 13 , wherein the fixing unit includes a groove formed in the body part and a protrusion formed on the heating part to be fittable into the groove.

16. The centrifugal valve control apparatus of claim 1 , wherein the heating part is formed of a film-shaped or thin film-shaped flexible element.

17. The centrifugal valve control apparatus of claim 16 , wherein:
an adhesion layer is formed on a lower surface of the flexible element; and
the heating part is fixed to the body part through the adhesion layer.

18. A centrifugal valve control apparatus comprising:
a body part including a body having a chamber and a channel connected to the chamber, and a valve configured to open and close the channel;
a heating part coupled to the body, and including a heating member disposed at a position corresponding to the valve; and
a rotation driving part configured to rotate the body part and the heating part together,
wherein the valve is formed to open and close the channel by the heating member while the body part and the heating part rotate together,
wherein
the heating member is formed of a heating element, and
the heating element is provided in a hole formed in a lower part of the heating part.

19. The centrifugal valve control apparatus of claim 18 , wherein the heating element is formed of a resistor, and further comprises a controlling part configured to control a current or voltage applied to the resistor.

20. The centrifugal valve control apparatus of claim 19 , wherein the controlling part controls the current or voltage applied to the resistor according to the type of a material forming the valve or a rotational speed of each of the body part and the heating part.

21. The centrifugal valve control apparatus of claim 19 , further comprising a communication part provided on the heating part and configured to communicate with an outside of the communication part to apply a control signal to the controlling part.

Assignees

• Daegu Gyeongbuk Inst Science & Tech

Inventors

• Kim Min Seok

Classifications

• B01L2200/025

  Align devices or objects to ensure defined positions relative to each other · CPC title

• F16K49/002

  Electric heating means · CPC title

• F16K31/042

  with electric means, e.g. for controlling the motor or a clutch between the valve and the motor · CPC title

• B01L3/502738 Primary

  characterised by integrated valves (throttle valves in microfluidic sample containers B01L3/502746) · CPC title

• G05D7/0635 Primary

  by action on throttling means (G05D7/0688, G05D7/0694 take precedence) · CPC title