Electroactive polymer valve

Patent metadata

Field	Value
Publication number	US-12435903-B2
Application number	US-202117797037-A
Country	US
Kind code	B2
Filing date	Feb 23, 2021
Priority date	Feb 24, 2020
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

A fluidic valve system comprises a housing, a shell mounted to the housing, a vent for allowing fluid to enter the housing in a high pressure zone, at least one Dielectric Elastomer Actuator (DEA) flap forming a seal with the shell, wherein applying a voltage to the DEA flap causes the DEA flap to open the seal with the shell so that fluid can exit through a low pressure zone created between the shell and the DEA flap, and a power supply for supplying the voltage to the DEA flap.

First claim

What is claimed is:

1. A system comprising:
a housing;
at least one shell mounted to the housing, the at least one shell comprising a flap mold; and
at least one Dielectric Elastomer Actuator flap, the at least one Dielectric Elastomer Actuator flap being bound on at least two sides in the housing, and a corner of the Dielectric Elastomer Actuator flap being unbound to the housing, wherein the corner of the Dielectric Elastomer Actuator flap is configured to form a seal with the flap mold of the at least one shell, wherein applying a voltage to the Dielectric Elastomer Actuator flap causes the Dielectric Elastomer Actuator flap to open the seal with the at least one shell.

2. The system of claim 1 further comprising:
a power supply for supplying the voltage to the Dielectric Elastomer Actuator flap.

3. The system of claim 2 wherein the power supply comprises at least one of:
a solar panel; and/or
a battery.

4. The system of claim 1 further comprising:
a control system comprising at least one sensor and a microcontroller, wherein the control system is configured to control the voltage provided to the Dielectric Elastomer Actuator flap.

5. The system of claim 4 wherein the at least one sensor further comprises at least one of:
a temperature sensor;
a humidity sensor;
a light sensor; and/or
a carbon dioxide sensor.

6. The system of claim 1 further comprising:
a vent; and
a manifold formed in the at least one shell in fluidic connection with the vent, wherein fluid can flow into the manifold through the vent.

7. The system in claim 1 wherein the at least one shell comprises an array of shells and the at least one Dielectric Elastomer Actuator flap comprises an array of Dielectric Elastomer Actuator flaps.

8. The system in claim 1 wherein the housing is configured to be mounted as a window.

9. A smart window system comprising:
a housing configured to fit in an opening for a window;
at least one shell mounted to the housing, the at least one shell comprising a flap mold;
a vent;
a manifold formed in the at least one shell in fluidic connection with the vent, wherein fluid can flow into the manifold through the vent;
at least one Dielectric Elastomer Actuator flap forming a seal with the at least one shell;
a power supply supplying a voltage to the Dielectric Elastomer Actuator flap; and
a control system comprising at least one sensor and a microcontroller, wherein the control system is configured to control the voltage provided to the Dielectric Elastomer Actuator flap, wherein turning the power supply on causes the Dielectric Elastomer Actuator flap to open the seal with the at least one shell and turning the power supply off causes the Dielectric Elastomer Actuator flap to close and seal with the at least one shell.

10. The smart window system of claim 9 wherein the power supply comprises at least one of:
a solar panel; and
a battery.

11. The smart window system of claim 9 wherein the at least one sensor further comprises at least one of:
a temperature sensor;
a humidity sensor;
a light sensor; and/or
a carbon dioxide sensor.

12. The smart window system of claim 9 wherein the at least one shell comprises an array of shells and the at least one Dielectric Elastomer Actuator flap comprises an array of Dielectric Elastomer Actuator flaps.

13. The smart window system of claim 9 further comprising at least one of:
a weather coating formed on the Dielectric Elastomer Actuator flap; and/or
a thermal coating formed on the Dielectric Elastomer Actuator flap.

14. A fluidic valve system comprising:
a housing;
a shell mounted to the housing, the at least one shell comprising a flap mold;
a vent for allowing fluid to enter the housing in a high pressure zone; and
at least one Dielectric Elastomer Actuator flap forming a seal with the flap mold of the shell, wherein applying a voltage to the Dielectric Elastomer Actuator flap causes the Dielectric Elastomer Actuator flap to open the seal with the shell so that fluid can exit through a low pressure zone created between the shell and the Dielectric Elastomer Actuator flap.

15. The fluidic valve system of claim 14 further comprising:
a power supply for supplying the voltage to the Dielectric Elastomer Actuator flap.

16. The fluidic valve system of claim 15 wherein the power supply comprises at least one of:
a solar panel; and/or
a battery.

17. The fluidic valve system of claim 14 further comprising:
a control system comprising a microcontroller, wherein the control system is configured to control the voltage provided to the Dielectric Elastomer Actuator flap.

18. The fluidic valve system of claim 14 wherein the Dielectric Elastomer Actuator flap comprises:
a polymer film;
a first conductive carbon coating applied to the top of the polymer film;
a second conductive carbon coating applied to the bottom of the polymer film; and
a frame.

19. The fluidic valve system of claim 18 further comprising at least one of:
a weather coating formed on the Dielectric Elastomer Actuator flap; and/or
a thermal coating formed on the Dielectric Elastomer Actuator flap.

20. The fluidic valve system of claim 14 further comprising:
a manifold formed in the shell in fluidic connection with the vent, wherein fluid can flow into the manifold through the vent.

Assignees

• Univ Texas Tech System

Inventors

• Shimul Shakil Ahmad
• Li Wei

Classifications

• F16K15/1401

  having a plurality of independent valve members · CPC title

• F16K15/14

  with flexible valve members · CPC title

• F24F2221/20

  mounted in or close to a window · CPC title

• F16K31/02 Primary

  electric {(F16K31/004 takes precedence)}; magnetic · CPC title

• F16K15/144

  the closure elements being fixed along all or a part of their periphery · CPC title