Figure eight closed loop cooling system for electronic display

• US 10,088,702 B2
• Filed: 10/10/2016
• Issued: 10/02/2018
• Est. Priority Date: 07/08/2013
• Status: Active Grant

• Current Assignee: Manufacturing Resources International, Inc.
• Original Assignee: Manufacturing Resources International, Inc.
• Inventors: Dunn, William, O'Connor, Kevin
• Primary Examiner(s): HAUGHTON, ANTHONY MICHAEL
• Application Number:
  US15/289,563
• Publication Number:
  US 20170023823A1
• Time in Patent Office: 722 Days
• Field of Search: 3616794-67944, 36167937, 36167921-6793, 36167955, 36167956, 361692, 36167948-67951
• CPC Class Codes: G02F 1/133382 Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
• CPC Class Codes: G02F 1/133385 with cooling means, e.g. fans
• CPC Class Codes: G02F 2201/36 Airflow channels, e.g. constructional arrangements facilitating the flow of air
• CPC Class Codes: H05K 7/20972 Forced ventilation, e.g. on heat dissipaters coupled to components

Abstract

The exemplary embodiments herein provide a figure eight closed loop of circulating gas pathways wrapping around an electronic display. One or more open loop ambient air pathways may pass through the figure eight but do not allow the circulating gas and the ambient air to mix. In some embodiments, the open loop ambient air pathway travels along a rear surface of the electronic display. In some embodiments, the circulating gas pathways contain a front channel placed in front of the electronic display, a rear channel placed behind the electronic display, and a center channel placed between the front and rear channels. Pass-through apertures may be placed within the path of the circulating gas and/or the ambient air to allow the paths of the two gaseous matters to cross without allowing them to mix with one another.

Claims

1. A cooling assembly for an electronic display comprising:

a figure eight loop of gas pathways wrapping around the electronic display and comprising a front channel that passes in front of the viewable area of the electronic display, a center channel located behind the electronic display, and a rear channel located behind the second channel;

a first plurality of subchannels located within the center channel;

a second plurality of subchannels located within the center channel;

a first plurality of pass through device connecting the first plurality of subchannels to the front channel; and

a second plurality of pass through devices connecting the second plurality of subchannels to the rear channel;

wherein first and second plurality of subchannels are configured to permit circulating gas to flow therethrough without substantially mixing.

2. The cooling assembly of claim 1 wherein:

the front channel is further defined as extending between a front surface of the electronic display and a transparent plate.

3. The cooling assembly of claim 2 wherein:

the rear channel comprises electronic components which are mounted to a plate.

4. The cooling assembly of claim 1 further comprising:

an open loop pathway that passes between the front channel and the rear channel.

5. The cooling assembly of claim 4 wherein:

a second open loop pathway that passes between the front channel and the rear channel.

6. The cooling assembly of claim 4 wherein:

the open loop pathway travels along a rear surface of the electronic display.

7. The cooling assembly of claim 4 wherein:

the pass-through apertures are arranged such that circulating gas in the figure eight loop of gas pathways travels through the center of the aperture while ambient air in the open loop pathway passes around the aperture.

8. A cooling assembly for an electronic display comprising:

a closed loop of gas pathways for circulating gas comprising;

a first channel placed in front of the electronic display,

a third channel placed behind the electronic display, and

a second channel placed between the first and third channels and comprising a first and second plurality of subchannels,

a first and second plurality of pass through devices connecting the first and second plurality of subchannels, respectively, to the first and third channels, respectively;

wherein the second channel is configured to permit circulating gas to flow simultaneously through the first and second plurality of subchannels without substantially mixing.

9. The cooling assembly of claim 8 wherein:

the closed loop of gas pathways forms a figure eight shape.

10. The cooling assembly of claim 9 further comprising:

an open loop of gas pathways for ambient air configured to pass between the closed loop of gas pathways without mixing the circulating gas and the ambient air.

11. The cooling assembly of claim 10 wherein:

the open loop of gas pathways comprises;

a first open loop pathway for ambient air positioned between the electronic display and the second channel; and

a second open loop pathway for ambient air positioned between the second channel and the third channel.

12. The cooling assembly of claim 8 further comprising:

a closed loop fan positioned to force circulating gas through the closed loop of gas pathways.

13. The cooling assembly of claim 10 further comprising:

an open loop fan positioned to force ambient air through open loop gas pathways.

14. A cooling assembly for an electronic display comprising:

a closed loop for circulating gas comprising;

a front channel defined by the space between a front surface of the electronic display and a transparent plate;

a plate positioned behind the electronic display;

a rear channel defined by the space between the plate and the rear surface of the cooling assembly;

a center channel located between the plate and the rear surface of the electronic display and comprising a number of independent subchannels; and

a plurality of pass through devices connecting a first number of said independent subchannels to the front channel and a second number of said independent subchannels to the rear channel;

wherein the center channel is configured to allow the circulating gas to travel through any of said independent subchannels without substantially mixing with circulating gas traveling through any of the other independent subchannels.

15. The cooling assembly of claim 14 further comprising:

an open loop for ambient air configured to pass between the front and the rear channels without mixing the ambient air and the circulating gas.

16. The cooling assembly of claim 15 further comprising:

a plurality of pass-through apertures placed within the closed loop configured to permit the circulating gas to pass between the front, center, and rear channels without mixing with the ambient air.

17. The cooling assembly of claim 14 further comprising:

at least one fan positioned to force the flow of the circulating gas through the closed loop.