System and method for selectively engaging cooling fans within an electronic display
First Claim
1. A system for cooling a first and second rear portion of an electronic image assembly, the system comprising:
- a first plurality of channels placed behind the first rear portion of the electronic image assembly, each channel having an inlet and exit;
a second plurality of channels placed behind the second rear portion of the electronic image assembly, each channel having an inlet and exita first manifold in gaseous communication with the inlet of each channel;
a second manifold in gaseous communication with the exit of each channel;
a first temperature measurement device positioned to measure the temperature near the first rear portion of an electronic display;
a second temperature measurement device positioned to measure the temperature near the second rear portion of an electronic display;
a first fan positioned to force ambient gas through the first plurality of channels;
a second fan positioned to force ambient gas through the second plurality of channels; and
a means for controlling the speed of the first fan in response to data from the first temperature measurement device and controlling the speed of the second fan in response to data from the second temperature measurement device.
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Accused Products
Abstract
A system and method for cooling an electronic image assembly having a plurality of channels place behind the electronic image assembly. A first fan may be used to force cooling gas through a first grouping of channels while a second fan may be used to force cooling gas through a second grouping of channels. Temperature sensing devices may be positioned so as to measure the temperature of the first and second groupings of channels. The speeds of the first and second fans may be adjusted based on the temperature measurements of the channel groupings. Additional fans with additional temperature sensing devices may be used for further accuracy and control over the temperature gradients of the electronic image assembly. Manifolds may be used to distribute/collect cooling gas to/from the channels.
108 Citations
20 Claims
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1. A system for cooling a first and second rear portion of an electronic image assembly, the system comprising:
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a first plurality of channels placed behind the first rear portion of the electronic image assembly, each channel having an inlet and exit; a second plurality of channels placed behind the second rear portion of the electronic image assembly, each channel having an inlet and exit a first manifold in gaseous communication with the inlet of each channel; a second manifold in gaseous communication with the exit of each channel; a first temperature measurement device positioned to measure the temperature near the first rear portion of an electronic display; a second temperature measurement device positioned to measure the temperature near the second rear portion of an electronic display; a first fan positioned to force ambient gas through the first plurality of channels; a second fan positioned to force ambient gas through the second plurality of channels; and a means for controlling the speed of the first fan in response to data from the first temperature measurement device and controlling the speed of the second fan in response to data from the second temperature measurement device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for cooling an electronic image assembly comprising:
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a plurality of channels placed behind the electronic image assembly; a first fan positioned to force cooling gas through a first grouping of channels; a second fan positioned to force cooling gas through a second grouping of channels; a first temperature sensing device positioned to measure the temperature of the first grouping of channels; a second temperature sensing device positioned to measure the temperature of the second grouping of channels; and a microprocessor in electrical communication with the fans and temperature sensing devices. - View Dependent Claims (13, 14, 15, 16)
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17. A method for cooling an electronic image assembly having a plurality of channels placed behind the electronic image assembly, a first fan positioned to force cooling gas through a first grouping of channels, and a second fan positioned to force cooling gas through a second grouping of channels, the method comprising the steps of:
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measuring the temperature T1 of the first grouping of channels; measuring the temperature T2 of the second grouping of channels; increasing the speed of the first fan if T1 is greater than T2; and increasing the speed of the second fan if T2 is greater than T1.
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18. A method for cooling an electronic image assembly having a plurality of channels placed behind the electronic image assembly where the channels have a desired operating temperature range, a first fan positioned to force cooling gas through a first grouping of channels, a second fan positioned to force cooling gas through a second grouping of channels, and a third fan positioned to force cooling gas through a third grouping of channels, the method comprising the steps of:
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measuring the temperature T1 of the first grouping of channels; measuring the temperature T2 of the second grouping of channels; measuring the temperature T3 of the third grouping of channels; increasing the speed of the first fan if T1 is higher than the desired operating temperature range; increasing the speed of the second fan if T2 is higher than the desired operating temperature range; and increasing the speed of the third fan if T3 is higher than the desired operating temperature range. - View Dependent Claims (19, 20)
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Specification