Control system of a balanced micro-pulsed ionizer blower

Patent metadata

Field	Value
Publication number	US-9918374-B2
Application number	US-201615362280-A
Country	US
Kind code	B2
Filing date	Nov 28, 2016
Priority date	Feb 6, 2012
Publication date	Mar 13, 2018
Grant date	Mar 13, 2018

Abstract

In one embodiment of the invention, a method of automatically balancing ionized air stream created in bipolar corona discharge is provided. The method comprises: providing an air moving device with at least one ion emitter and reference electrode connected to a micro-pulsed AC power source, and a control system with at least one ion balance monitor and corona discharge adjustment control; generating variable polarity groups of short duration ionizing micro-pulses: wherein said micro-pulses are predominantly asymmetric in amplitude and duration of both polarity voltages and have a magnitude of at least one polarity ionizing pulses exceed the corona threshold.

First claim

What is claimed is:

1. An apparatus for an automatically balanced ionizing blower, comprising:
an ion balance control system configured to sample and compare output signals from at least one of a remote ionization current return sensor or a remote ionization voltage sensor in a time interval between ionizing pulses.

2. The apparatus of claim 1 , wherein the ion balance control system is configured to receive the output signals from the at least one of the remote ionization current return sensor or the remote ionization voltage sensor via a wired connection.

3. The apparatus of claim 1 , wherein the ion balance control system is configured to receive the output signals from the at least one of the remote ionization current return sensor or the remote ionization voltage sensor via a wireless connection.

4. The apparatus of claim 3 , wherein the ion balance control system and the at least one of the remote ionization current return sensor or the remote ionization voltage sensor are individually addressable via the wireless connection.

5. The apparatus of claim 3 , wherein the ion balance control system is configured to be paired to the at least one of the remote ionization current return sensor or the remote ionization voltage sensor to receive the output signals.

6. The apparatus of claim 1 , wherein the ion balance control system is further configured to compare the output signals from the remote ionization current return sensor and the remote ionization voltage sensor.

7. A control system of a balanced micro-pulsed ionizing blower, the control system comprising:
a micro-pulsed high voltage AC (alternating current) power source configured to generate short duration positive polarity ionizing pulses and short duration negative polarity ionizing pulses;
an ion balance control system configured to receive output signals from at least one of a remote ionization current return sensor or a remote ionization voltage sensor in a time interval between the ionizing pulses; and
a microcontroller configured to control the AC power source based on the output signals.

8. The control system of claim 7 , wherein the ion balance control system is configured to receive the output signals from the at least one of the remote ionization current return sensor or the remote ionization voltage sensor via a wired connection.

9. The control system of claim 7 , wherein the ion balance control system is configured to receive the output signals from the at least one of the remote ionization current return sensor or the remote ionization voltage sensor via a wireless connection.

10. The control system of claim 9 , wherein the ion balance control system and the at least one of the remote ionization current return sensor or the remote ionization voltage sensor are individually addressable via the wireless connection.

11. The control system of claim 9 , wherein the ion balance control system is configured to be paired to the at least one of the remote ionization current return sensor or the remote ionization voltage sensor to receive the output signals.

12. The control system of claim 7 , wherein the ion balance control system is further configured to compare the output signals from the remote ionization current return sensor and the remote ionization voltage sensor.

13. The control system of claim 7 , wherein the microcontroller achieves an ion balance by at least one of:
increasing and/or decreasing a positive pulse width value and/or negative pulse width value of the ionizing pulses;
increasing and/or decreasing a time between positive pulses and/or negative pulses of the ionizing pulses; or
increasing and/or decreasing a number of positive polarity pulses and/or negative polarity pulses of the ionizing pulses.

14. A method of providing control in a balanced micro-pulsed ionizing blower, the method comprising:
generating short duration positive polarity ionizing pulses and short duration negative polarity ionizing pulses;
wherein generating the ionizing pulses further comprises:
receiving output signals from at least one of a remote ionization current return sensor or a remote ionization voltage sensor in a time interval between the ionizing pulses; and
controlling an AC power source for generating the ionizing pulses based on the output signals.

15. The method of claim 14 , wherein the receiving the output signals from the at least one of the remote ionization current return sensor or the remote ionization voltage sensor comprises receiving the output signals via a wired connection.

16. The method of claim 14 , wherein the receiving the output signals the output signals from the at least one of the remote ionization current return sensor or the remote ionization voltage sensor comprises receiving the output signals via a wireless connection.

17. The method of claim 16 , wherein the at least one of the remote ionization current return sensor or the remote ionization voltage sensor are individually addressable via the wireless connection.

18. The method of claim 16 , further comprising establishing pairing with the at least one of the remote ionization current return sensor or the remote ionization voltage sensor to receive the output signals.

19. The method of claim 14 , further comprising comparing the output signals from the remote ionization current return sensor and the remote ionization voltage sensor.

20. The method of claim 14 , further comprising achieving an ion balance based on controlling at least one of the following:
increasing and/or decreasing a positive pulse width value and/or negative pulse width value of the ionizing pulses;
increasing and/or decreasing a time between positive pulses and/or negative pulses of the ionizing pulses; or
increasing and/or decreasing a number of positive polarity pulses and/or negative polarity pulses of the ionizing pulses.

Assignees

• Illinois Tool Works

Inventors

• Oldynski Edward
• Gefter Peter
• Partridge Leslie

Classifications

• H01T23/00

  Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere · CPC title

• B01D2259/818

  Employing electrical discharges or the generation of a plasma · CPC title

• H01T19/00 Primary

  Devices providing for corona discharge (for charging electrographic elements G03G15/02) · CPC title

• H05F3/04

  by means of spark gaps or other discharge devices (devices providing for corona discharge per se H01T19/00) · CPC title

• H05F3/06 Primary

  by means of ionising radiation · CPC title