Semiconductor Refrigeration Sheet 1.5 cm 15mm 3V-5V 2A Refrigeration Block Suitable for Micro-Device DIY retrofit Cooling

FansThe installation and use of the cooling plate is very simple. Before installation, it is best to prepare a little thermal grease. Then, find a dry battery and connect it to the two leads of the refrigerator. You can feel that one end is obviously cool and the other end is . Remember the polarity of the lead and determine the cooling. The cold and end of the device. If you want to get a larger amount of sputum, it is recommended to use the two-stage cooling method, that is, use two pieces to stack up. The cold surface of the upper part absorbs the heat of the next piece. The experiment proves that the secondary cooling is much better than the single-stage effect. The condition can be selected as three levels, of course, there must be high power support.Note: If the cooling film is not burnt out due to heat dissipation, the store is not responsible for the warranty. When the test is performed without heat dissipation, the power is turned on to have a cooling effect. The power should be unplugged immediately within 1 second. Otherwise, the cooling sheet will burn out. "Please test carefully, do not use this method to test. How can I cool?1, prepare 5 large pieces, refrigeration sheet + radiator + silicone + insulation pad + electricity2. Apply the silicone to the and cold side of the cooling plate.3. Install the cooling plate on the radiator and the insulation pad on the middle pad.4, tighten the screw to power cooling(We only sell refrigeration separately! No other accessories are included)Semiconductor refrigeration sheet use precautions1. When you do not know the and cold surface of the refrigerator, you can use this method to connect the red wire to the positive pole of the power supply, the black wire to the negative pole, and the power can be tested instantaneously without heat dissipation, that is, touch the cold with your hand. The two end faces of the device will feel a side of the heat, a slightly cold side, the side is the side, and the cold side is the cold side. However, the time should not exceed 5 seconds, otherwise the device will burn out due to the high temperature of the end.2. Under normal conditions, the lead is usually expressed as a positive pole in red: it is usually indicated by black as a negative pole, which is the wiring method when the thermoelectric cooler is in operation. When you need to get . Just change the polarity of the current. The switching power supply must be used for cooling work, and the ripple factor of the power supply should be less than 10%.3. The method of identifying the thermocouple logarithm of the refrigerator and the limit voltage. The thermocouple logarithm refers to the number of P and N nodes. For example, the model of the refrigerator is TEC1-12706, then 127 is the thermocouple logarithm of the refrigerator, 06 is the allowable current value: A, the limit voltage of the refrigerator, the number of thermocouple pairs × 0.12, for example: TECI- The limit voltage of 12706 is V = 127 x 0.12 = 15.4 (V). The normal working voltage is 78% of the limit voltage. For example, the working voltage of TEC1-12706 is 15.4*0.78=12.01V.4, all kinds of refrigerators, whether in use or in the test, the cooling and heat exchange should wait for the temperature of the and cold surface to to room temperature (usually more than 15 minutes). Otherwise, it may cause damage to the refrigerator.5. In order to extend the life of the thermoelectric cooler, the sealing treatment should be carried out around the cooling components. There are two methods, one is sealed with 704 silicone; the other is sealed with epoxy resin, the purpose of sealing is to completely isolate the thermocouple of the refrigerator from the outside air. It acts as a moisture and moisture barrier and can extend the life of the refrigerator.6. When installing, first wipe the two sides of the cooling component clean and apply a thin layer of thermal grease on the and cold side of the refrigerator. The surface of the aluminum radiator or cold storage plate that is in contact with the refrigerator should be flat and cleaned, and evenly coated with thermal grease on the surface; the cold surface of the refrigerator must be stored during the installation process. The cold plate is in good contact, and the surface should also be in full contact with the surface of the aluminum heat sink. (If tightened with screws, the force of several screws should be uniform, do not excessive or uneven force). In order to achieve the best cooling effect, the insulation material is filled between the cold storage plate and the aluminum heat sink, and the thickness is generally 25-30 mm.7. The installation pressure of the cooling fin is recommended to be between 150PSI and 300PSI. If the pressure is too low, the contact surface of the cold sheet will be poorly contacted. If the pressure is too high, the cooling sheet will be damaged.8. If the user does not have a special instrument, judge whether the refrigerator is qualified or not, mainly to test its resistance. The resistance of the refrigerator can be measured using a data bridge or an ohmmeter with compensation. Using a multimeter to test the static resistance of the cooling component is not accurate, only for reference.9. During the process of handling and installing the refrigerator, the operator should handle it gently. It is strictly forbidden to drop the cooling piece from a high place. Even at a height of 10-20cm, the internal resistance of the refrigerator will be obvious. Changes, causing damage to the refrigerator.10, semiconductor cooling film used in the following occasions, its life may be greatly reduced: A, frequent use of and cold alternate use B, vibration using C, end heat sink temperature exceeds 65 degrees D, working voltage overpressure use (It is recommended not to exceed 70% of the limit voltage) E, the surface of the cooling fin is in poor contact F, and the cold-sealed uncooled sheet is used in a humid environment.11. The use of semiconductor cooling fins in the following occasions may cause rapid damage: A. The heating surface of the cooling fin does not contact any heat dissipating material B. The voltage of the cooling fin exceeds the limit working voltage C, and the pressure of the cooling fin More than 500 PSI

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• Semiconductor refrigeration sheet 1.5 cm 15mm 3V-5V 2A refrigeration block Suitable for micro-device DIY retrofit cooling