Process for producing ozone and apparatus for ozone generation

Patent metadata

Field	Value
Publication number	US-11076474-B2
Application number	US-201716083430-A
Country	US
Kind code	B2
Filing date	Feb 23, 2017
Priority date	Mar 7, 2016
Publication date	Jul 27, 2021
Grant date	Jul 27, 2021

Abstract

In an embodiment an apparatus for generating ozone includes a piezoelectric transformer having an input area and an output area, wherein the input area is configured to convert an applied AC voltage into a mechanical vibration, and wherein the output area is configured to convert the mechanical vibration into an electrical voltage so that the ozone is generated by the electrical voltage of the output area.

First claim

The invention claimed is:

1. An apparatus for generating ozone comprising:
a piezoelectric transformer having an input area and an output area;
a sensor; and
a control circuit,
wherein the input area is configured to convert an applied AC voltage into a mechanical vibration,
wherein the output area is configured to convert the mechanical vibration into an electrical voltage so that the ozone is generated by the electrical voltage of the output area,
wherein the sensor is configured to measure an amount of generated ozone, and
wherein the control circuit is configured to adapt an input voltage applied to the piezoelectric transformer on basis of the measured amount of generated ozone in order to set a desired ozone generation rate.

2. The apparatus according to claim 1 , further comprising a housing which has at least one ozone outlet opening, wherein the piezoelectric transformer is arranged in the housing.

3. The apparatus according to claim 2 , wherein the sensor and the control circuit are arranged in the housing.

4. The apparatus according to claim 3 ,
wherein the control circuit is configured to apply the input voltage to the piezoelectric transformer,
wherein the apparatus has a switch, and
wherein the control circuit and the switch are connected in such a manner that the input voltage is applied only as long as the switch is held in a pressed position.

5. The apparatus according to claim 3 , wherein the control circuit is configured to apply the input voltage to the piezoelectric transformer, wherein the apparatus has a switch, and wherein the control circuit and the switch are connected in such a manner that pressing the switch once triggers an application of the input voltage and further pressing the switch disconnects a supply of the piezoelectric transformer with the input voltage.

6. The apparatus according to claim 3 , further comprising a voltage supply integrated in the housing.

7. The apparatus according to claim 6 , wherein the integrated voltage supply is chargeable by an inductive charging operation.

8. The apparatus according to claim 1 ,
wherein the control circuit is configured to apply the input voltage to the piezoelectric transformer,
wherein the apparatus has a switch, and
wherein the control circuit and the switch are connected in such a manner that the input voltage is applied only as long as the switch is held in a pressed position.

9. The apparatus according to claim 1 , wherein the control circuit is configured to apply the input voltage to the piezoelectric transformer, wherein the apparatus has a switch, and wherein the control circuit and the switch are connected in such a manner that pressing the switch once triggers an application of the input voltage and further pressing the switch disconnects a supply of the piezoelectric transformer with the input voltage.

10. The apparatus according to claim 2 , further comprising a voltage supply integrated in the housing.

11. The apparatus according to claim 10 , wherein the integrated voltage supply is chargeable by an inductive charging operation.

12. An apparatus for generating ozone comprising:
a piezoelectric transformer having an input area and an output area,
wherein the input area is configured to convert an applied AC voltage into a mechanical vibration, and
wherein the output area is configured to convert the mechanical vibration into an electrical voltage so that the ozone is generated by the electrical voltage of the output area; and
a control circuit configured to operate the piezoelectric transformer in a pulsed manner such that phases in which an input voltage is applied to the piezoelectric transformer and phases in which the input voltage is not applied to the piezoelectric transformer alternate at regular intervals.

13. The apparatus according to claim 12 , further comprising a housing which has at least one ozone outlet opening, wherein the piezoelectric transformer is arranged in the housing.

14. The apparatus according to claim 13 , wherein a sensor and the control circuit are arranged in the housing.

15. The apparatus according to claim 14 ,
wherein the control circuit is configured to apply the input voltage to the piezoelectric transformer,
wherein the apparatus has a switch, and
wherein the control circuit and the switch are connected in such a manner that the input voltage is applied only as long as the switch is held in a pressed position.

16. The apparatus according to claim 14 , wherein the control circuit is configured to apply the input voltage to the piezoelectric transformer, wherein the apparatus has a switch, and wherein the control circuit and the switch are connected in such a manner that pressing the switch once triggers an application of the input voltage and further pressing the switch disconnects a supply of the piezoelectric transformer with the input voltage.

17. The apparatus according to claim 14 , further comprising a voltage supply integrated in the housing.

18. The apparatus according to claim 17 , wherein the integrated voltage supply is chargeable by an inductive charging operation.

19. The apparatus according to claim 12 , further comprising a switch,
wherein the control circuit is configured to apply the input voltage to the piezoelectric transformer, and
wherein the control circuit and the switch are connected in such a manner that the input voltage is applied only as long as the switch is held in a pressed position.

20. The apparatus according to claim 12 , further comprising a switch, wherein the control circuit is configured to apply the input voltage to the piezoelectric transformer, and wherein the control circuit and the switch are connected in such a manner that pressing the switch once triggers an application of the input voltage and further pressing the switch disconnects a supply of the piezoelectric transformer with the input voltage.

Assignees

• Epcos Ag

Inventors

• Weilguni Michael
• Puff Markus
• Kudela Pavol

Classifications

• H05H1/2475 Primary

  using acoustic pressure discharges · CPC title

• C01B13/115 Primary

  characterised by the electrical circuits producing the electrical discharge · CPC title

• H05H1/2481

  the plasma being activated using piezoelectric actuators · CPC title

• H01L41/044

  Electricity · mapped topic

• H01L41/107

  Electricity · mapped topic