Heat exchanger for an electronic display

• US 9,119,325 B2
• Filed: 10/10/2013
• Issued: 08/25/2015
• Est. Priority Date: 03/03/2008
• Status: Active Grant

• Current Assignee: Manufacturing Resources International, Inc.
• Original Assignee: Manufacturing Resources International, Inc.
• Inventors: Dunn, William, Hubbard, Tim
• Primary Examiner(s): BLEVINS, JERRY M
• Application Number:
  US14/050,464
• Publication Number:
  US 20140111758A1
• Time in Patent Office: 684 Days
• Field of Search: 349/161
• US Class Current: 1/1
• CPC Class Codes: F28D 9/00 Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall F28F3/083, F28F3/086 take precedence
• CPC Class Codes: F28F 3/02 Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations F28F3/08 takes precedence
• CPC Class Codes: G02F 1/133385 with cooling means, e.g. fans
• CPC Class Codes: H05K 7/20136 Forced ventilation, e.g. by fans H05K7/202 takes precedence
• CPC Class Codes: H05K 7/20163 the components being isolated from air flow, e.g. hollow heat sinks, wind tunnels or funnels
• CPC Class Codes: H05K 7/202 Air circulating in closed loop within enclosure wherein heat is removed through heat-exchangers
• CPC Class Codes: H05K 7/20972 Forced ventilation, e.g. on heat dissipaters coupled to components

Abstract

A cooling assembly for an electronic image assembly having an open and closed gaseous loop. A closed gaseous loop allows circulating gas to travel across the front surface of an image assembly and through a heat exchanger. An open loop allows ambient gas to pass through the heat exchanger and extract heat from the circulating gas. An optional additional open loop may be used to cool the back portion of the image assembly (optionally a backlight). Ribs may be placed within the optional additional open loop to facilitate the heat transfer to the ambient gas. The cooling assembly can be used with any type of electronic assembly for producing an image.

Claims

1. A heat exchanger for an electronic display having an open loop for ambient gas and a closed loop for circulating gas, the heat exchanger comprising:

a plurality of plates comprised of corrugated plastic, arranged in an alternating pattern where a plate that is in gaseous communication with ambient gas is sandwiched between a pair of plates that are in gaseous communication with the circulating gas.

2. The heat exchanger of claim 1 wherein:

the plates are comprised of polypropylene corrugated plastic.

3. The heat exchanger of claim 1 wherein:

the plates are sealed to prevent the ambient gas from mixing with the circulating gas.

4. The heat exchanger of claim 1 wherein:

the heat exchanger is a cross-flow heat exchanger.

5. The heat exchanger of claim 1 wherein:

the heat exchanger is a counter-flow heat exchanger.

6. The heat exchanger of claim 1 wherein:

the heat exchanger is a parallel-flow heat exchanger.

7. The heat exchanger of claim 1 wherein:

the plates are sealed to prevent contaminates within the ambient gas from mixing with the circulating gas.