Detection of electrostatic filter for air filtration system

Patent metadata

Field	Value
Publication number	US-9579663-B2
Application number	US-201214117727-A
Country	US
Kind code	B2
Filing date	May 14, 2012
Priority date	May 24, 2011
Publication date	Feb 28, 2017
Grant date	Feb 28, 2017

Abstract

An air filtration system includes a frame directing an airflow through the air filtration system and a media filter. The media filter includes a plurality of media fibers arranged to capture particles flowing therethrough and a conductive surface located at the media filter and having a conductivity within a selected range. Two or more contact pads are located at the media filter and are alignable with an electrical circuit located at the frame to determine whether a resistance across the conductive plane is within a selected resistance range. A method of installing a media filter in an air filtration system includes inserting the media filter into a frame of the air filtration system and aligning one or more contact pads of the media filter with one or more grounding pads of the frame. A resistance across the media filter is measured.

First claim

The invention claimed is:

1. An air filtration system comprising:
a frame directing an airflow through the air filtration system; and
a media filter including:
a plurality of media fibers arranged to capture particles flowing therethrough;
a conductive surface disposed at the media filter having a conductivity within a selected range; and
two or more contact pads disposed at the media filter; and
an electrical circuit disposed at the frame including ground contacts alignable with the two or more contact pads, the electrical circuit configured to measure an electrical resistance across the media filter, wherein a measured resistance within a selected resistance range is indicative of a properly installed media filter.

2. The air filtration system of claim 1 , wherein the electrical circuit is disposed at a door of the frame.

3. The air filtration system of claim 2 , wherein the grounding contacts are disposed at a door of the frame, and the resistance is measured via closure of the door over the media filter.

4. The air filtration system of claim 1 , further comprising a light which is illuminated when the resistance is outside of the selected resistance range.

5. The air filtration system of claim 1 , further comprising a communication device to communicate a system status based on the determination to a control device.

6. The air filtration system of claim 5 , wherein the communication device is wirelessly connected to the control device.

7. The air filtration system of claim 5 , wherein the control device is configured to stop operation of the system if a measured resistance across the conductive surface is outside of the selected resistance range.

8. The air filtration system of claim 1 , wherein the electrical circuit comprises one or more grounding contacts alignable with the one or more contact pads.

9. A media filter for an air filtration system comprising:
a plurality of media fibers arranged to capture particles flowing therethrough;
a conductive surface disposed at the media filter having a conductivity within a selected range; and
two or more contact pads disposed at the media filter, alignable with corresponding grounding contacts of an electrical circuit disposed at the air filtration system to determine whether a resistance across the conductive surface is within a selected resistance range, wherein a measured resistance within a selected resistance range is indicative of a properly installed media filter.

Assignees

• Mckinney Peter Johannes
• Carrier Corp

Inventors

• Mckinney Peter Johannes

Classifications

• B03C3/82

  Housings · CPC title

• B03C3/72

  Emergency control systems · CPC title

• B03C3/68 Primary

  Control systems therefor {(electricity supply or control systems for cleaning the electrodes B03C3/746, B03C3/763)} · CPC title

• B03C3/66 Primary

  Applications of electricity supply techniques · CPC title

• B03C3/86

  Electrode-carrying means (B03C3/40 takes precedence) · CPC title