COOLING SYSTEM FOR DOUBLE SIDED DISPLAY ASSEMBLY

• US 20170257978A1
• Filed: 03/06/2017
• Published: 09/07/2017
• Est. Priority Date: 03/04/2016
• Status: Active Grant

• Current Assignee: Manufacturing Resources International, Inc.
• Original Assignee: Manufacturing Resources International, Inc.
• Inventors: Diaz, Marcos
• Granted Patent: US 10,820,445 B2
• Time in Patent Office: Days
• CPC Class Codes: B60R 11/0229 for displays, e.g. cathodic tubes
• CPC Class Codes: B60R 2011/004 outside the vehicle
• CPC Class Codes: H05K 7/20145 Means for directing air flow, e.g. ducts, deflectors, plenum or guides
• CPC Class Codes: H05K 7/20154 Heat dissipaters coupled to components
• CPC Class Codes: H05K 7/20972 Forced ventilation, e.g. on heat dissipaters coupled to components

Abstract

A pair of electronic displays are placed back to back and are configured for mounting to a vehicle. A pair of thermal plates are located behind the electronic displays and a pair of transparent plates are located in front of the electronic displays. A closed loop of air travels vertically through the space between the electronic displays and transparent panels and through a closed loop plenum. An open loop of air travels horizontally through the space between thermal plates and the rear surface of the electronic displays.

Claims

1. A display assembly for mounting on a vehicle comprising:

a first and second electronic display positioned back to back;

a first and second transparent panel, each positioned in front of one of the first and second electronic displays;

an open loop pathway located between the first and second electronic displays and configured to receive ambient air;

a closed loop pathway configured to receive circulating gas and comprising;

a first and second channel defined by the first and second transparent panels and the first and second electronic displays, respectively, and

a plenum located between the first and second electronic displays and in gaseous communication with the channels; and

a housing adapted to be mounted to the roof of a vehicle, wherein the housing and the first and second transparent panels create an enclosure substantially surrounding the first and second electronic displays, the open loop pathway, and the closed loop pathway;

wherein the closed loop pathway and the open loop pathway are configured to transfer thermal energy from the circulating gas to the ambient air while not allow the circulating gas and the ambient air to mix in any substantial manner.

2. The display assembly of claim 1, further comprising:

a first and second thermal plate, each placed behind a rear surface of one of the first and second electronic displays.

3. The display assembly of claim 2, further comprising:

a number of electronic components mounted to a rear surface of at least one of the thermal plates.

4. The display assembly of claim 2, further comprising:

a first and second open loop channel, each defined by the first and second thermal plates and the rear surface of the first and second electronic displays, respectively.

5. The display assembly of claim 4, wherein:

the open loop pathway comprises the first and second open loop channels.

6. The display assembly of claim 5, wherein:

the open loop pathway is configured such that ambient air travels horizontally through the first and second open loop channels.

7. The display assembly of claim 1, wherein:

the closed loop pathway is configured such that closed loop air travels vertically through the first and second channels and the plenum.

8. The display assembly of claim 1, wherein:

the open loop pathway further comprises;

an inlet aperture located in the housing for ingesting ambient air, and

an exhaust aperture located in the housing for exhausting ambient air.

9. The display assembly of claim 8, wherein:

the open loop pathway further comprises;

a number of entrance apertures in gaseous communication with the inlet aperture and the first and second open loop channels, and

a number of exit apertures in gaseous communication with the first and second open loop channels and the exhaust aperture.

10. The display assembly of claim 5, wherein:

the closed loop pathway comprises a first and second flow wherein the first and second flows vertically encircle the first and second electronic display, respectively.

11. The display assembly of claim 10, wherein:

the first and second open loop channels pass through the middle of the first and second flows.

12. The display assembly of claim 1, further comprising:

at least one open loop fan placed within the open loop pathway and configured to propel ambient air through the open loop pathway.

13. The display assembly of claim 1, further comprising:

at least one closed loop fan placed with the closed loop pathway and configured to propel circulating gas through the closed loop pathway.

14. A display assembly for mounting on a vehicle comprising:

a pair of electronic displays placed back to back and having a front and a rear surface;

a pair of transparent panels, each positioned in front of the front surface of one the electronic displays;

a pair of closed loop channels, each located between one of the transparent panels and one of the electronic displays;

a pair of thermal plates, each positioned behind the rear surface of one of the electronic displays;

a pair of open loop channels, each located between one of the thermal plates and the rear surface of one of the electronic displays, wherein the open loop channels are configured to allow ambient air to pass horizontally therethrough; and

a closed loop plenum defined by the pair of thermal plates, wherein the closed loop plenum is in gaseous communication with the pair of closed loop channels;

wherein the closed loop channels and the closed loop plenum are configured to allow circulating gas to pass vertically therethrough.

15. The display assembly of claim 14, further comprising:

a number of electronic components mounted to a rear surface of at least one of the thermal plates.

16. The display assembly of claim 14, further comprising:

a pair of closed loop fans spaced apart and configured to propel circulating gas through the closed loop plenum and the closed loop channels.

17. The display assembly of claim 14, further comprising:

an open loop fan positioned to propel ambient air through the open loop channels.

18. The display assembly of claim 14, further comprising:

a housing adapted to be mounted to the roof of a vehicle.

19. A display assembly for mounting on a vehicle comprising:

a pair of electronic displays placed back to back, the space between the electronic displays defining a gap;

a housing configured to surround the electronic displays and be mounted to the roof of the vehicle;

a closed loop pathway that surrounds each of said electronic displays and travels through the gap; and

a pair of open loop pathways that travel through the gap;

wherein the open loop pathways and the closed loop pathway do not intersect.

20. The display assembly of claim 19, further comprising:

a pair of thermal plates located between the electronic displays and separating the open loop pathways from the closed loop pathway.