Uncooled infrared movement cooling apparatus and method
A heat-dissipating device, non-cooling technology, applied in cooling/ventilation/heating transformation, electrical components, electric solid devices, etc. The effect of low power consumption, stable operation, improved stability and reliability
Active Publication Date: 2016-01-27
CHANGCHUN YITIAN TECH CO LTD
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[0004] The uncooled infrared detector 6 integrates a TEC thermoelectric cooler inside the tube shell, and connects it with the temperature signal output by the temperature sensor inside the infrared detector to the TEC control circuit outside the infrared detector, which can realize the control of the uncooled infrared detector. The cooling or heating of the infrared detector 6 keeps the uncooled infrared detector 6 at a stable temperature point, but when the background ambient temperature deviates greatly from the selected temperature, the power consumption of the infrared core will be increased, resulting in a large amount of heat, reducing the overall performance of uncooled infrared cores
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[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0035] Such as figure 1 with figure 2 As shown, the non-refrigerated infrared core cooling device of the present invention mainly includes: a printed circuit board 1, a first heat sink structure 2, a second heat sink structure 3, a plurality of heat conduction hole arrays 4, a plurality of heat conduction aluminum layers 5.
[0036] The uncooled infrared detector 6 is a temperature-sensitive device, and its temperature change directly affects the imaging quality of the uncooled infrared detector 6 . Therefore, it is necessary to do a good heat dissipation design for the uncooled infrared detector 6 shell. Such as figure 1 As shown, two heat sink structures suitable for the uncooled infrared detector 6 are designed. The uncooled infrared detector 6 needs to be far away from heating components, and is usually welded on a separate printed circuit board 1, a...
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The invention provides an uncooled infrared movement cooling apparatus and method, and belongs to the uncooled infrared imaging field and can solve the problem for cooling an existing uncooled infrared movement. The cooling method comprises: designing two heat sink structures which are suitable for cooling an uncooled infrared detector, and providing a cooling path for the infrared detector; setting a printed circuit board cooling mode based on a heat conduction hole array and a heat conduction aluminium layer, and providing a cooling path for heating power components; and providing a multi-temperature-spot thermoelectric cooler (TEC) control method to realize low-power consumption and stable working within the wide temperature difference range. The cooling method can cool the infrared detector and heating power components in the uncooled infrared movement, and at the same time can enable the uncooled infrared movement to work stably within the wide temperature difference range, and can improve the imaging quality of the infrared movement and can prolong the service life of the infrared movement.
Description
technical field [0001] The invention belongs to the technical field of unrefrigerated infrared imaging, and in particular relates to an unrefrigerated infrared core heat dissipation device and a heat dissipation method. Background technique [0002] Infrared cores are developing in the direction of miniaturization, all-weather, long-distance, high-definition, high performance, and low power consumption. Infrared cores are divided into cooling and uncooled infrared cores. Uncooled infrared cores are And the power consumption is small, has been widely used gradually, but the uncooled infrared core also has many shortcomings. [0003] The space of the uncooled infrared core is limited, and the size of the circuit board is small, so the space for the layout of components is very limited. At present, components tend to be miniaturized, highly integrated, and high-frequency, and their heat density has increased significantly. The traditional uncooled infrared core mainly include...
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IPC IPC(8): H01L23/373H01L23/367H01L23/38H05K7/20
Inventor 李国宁张宇
Owner CHANGCHUN YITIAN TECH CO LTD