Micro thermoelectric device power generation performance test system and test method
A technology of thermoelectric devices and testing systems, which is applied in the direction of instruments, measuring electronics, and measuring devices. It can solve the problems of large heat loss, low testing accuracy, and manual adjustment, so as to reduce contact thermal resistance and avoid convective heat loss and radiation. Effect of reducing heat loss and impact
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Embodiment 1
[0069] A 2mm*16mm rigid Al 2 o 3The characterization method of the substrate thermoelectric micro power generation device, the Rac of the device is 2.63Ω, and the maximum cooling temperature difference is 59.5°C. The test process is as follows:
[0070] 1) Test preparation. According to the size of the device, use wire cutting technology to process two copper blocks of equal size and smooth surface, with a size of 4mm*20mm*2mm, drill a hole in the center of the strip, and connect (or weld) the upper and lower surfaces of the device with thermally conductive silicone grease ) long copper block, coated with thermal conductive silicone grease on the surface of the thermocouple, and placed in the center of the copper block (the thermal conductive silicone grease is completely filled).
[0071] 2) The system is switched on, pressurized and vacuumed. Adjust the lifting pressure knob until the upper and lower surfaces of the device, the upper and lower surfaces of the copper block...
Embodiment 2
[0075] The characterization of the 2mm*16mm thermoelectric micro power generation device on the flexible PI film substrate, in which the Rac of the flexible thermoelectric device on the flexible PI film substrate is 2.46Ω, the test process is as follows:
[0076] 1) Test preparation. According to the size of the device, use the wire cutting technology to process two copper blocks of equal size and smooth surface, with a size of 4mm*20mm*2mm, and drill a hole in the center of the strip. The strip-shaped copper block connected (or welded) with thermal conductive silicone grease on the upper and lower surfaces of the device, coated with thermal conductive silicone grease on the surface of the thermocouple, and placed in the center of the copper block (completely filled with thermal conductive silicone grease).
[0077] 2) The system is switched on, pressurized and vacuumed. Adjust the lifting pressure knob until the upper and lower surfaces of the device, the upper and lower sur...
Embodiment 3
[0081] The size is 8×8.5mm 2 The power generation performance test of the flexible thermoelectric device, the device Rac is 6.8Ω, and the maximum cooling temperature difference is 51°C. The test process is as follows:
[0082] 1) Test preparation. According to the size of the device, use wire cutting technology to process two copper blocks of equal size and smooth surface, with a size of 10mm*10mm*2mm, and drill a hole in the center of the copper block. A long strip of copper block connected (or welded) with thermally conductive silicone grease on the upper and lower surfaces of the device. A round hole with a diameter of 1.5mm is drilled in the center of the copper block by wire cutting technology, and thermally conductive silicone grease is coated on the surface of the thermocouple, and the copper Block center (completely filled with thermal grease).
[0083] 2) The system is switched on, pressurized and vacuumed. Adjust the lifting pressure knob until the upper and lower...
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