Lead length: approx. 15CM
Size of the generator: 40MM long *40MM wide * 3.2mm thick
The printed side is close to the cooling side (cold end)
The unletted side is inserted into the heat absorbing surface (hot end).
The red line is connected to the positive pole, the black line is connected to the negative pole
Best matching resistance: between 3.3 and 4.3
Use temperature between -50 ¡É and 300 ¡É
Installation Precautions:
The generator must be mounted on a flat surface (especially on a cold surface). Mounting surface height error shall not exceed 20 microns
The temperature of the heating surface shall not exceed 300¡É. The cooling surface shall be kept below 100¡É
1. Principle of thermoelectric power Generation:
Thermostatic semiconductor power generation is a new kind of power generation, which USES seebeck effect to convert heat energy directly into electric energy
A device (thermoelectric material) consisting of a P-type and N-type semiconductor component maintains one side at low temperature and the other at high temperature, so that the high temperature side of the device conducts heat to the low temperature side and generates heat flow. That is, the heat energy flows into the device from the high temperature side. When the heat energy is discharged from the low temperature side through the device, part of the heat energy flowing into the device does not release heat, and turns into electric energy in the device, and outputs DC voltage and current. Larger voltages can be obtained by connecting multiple such devices
Thermoelectric material is a kind of functional material that realizes the direct conversion between heat energy and electric energy through carrier motion in solid. The basic unit of a thermoelectric device consists of a pair of P-type and N-type thermoelectric materials in series. When the two ends of p-N pair have different temperatures, as shown in the figure, current will be generated in the loop, thus achieving "thermoelectric generation". When direct current passes through the P-N pair, as shown, it absorbs heat at one end and exhales heat at the other, thus achieving "semiconductor refrigeration". Thermoelectric materials are mainly used in: thermoelectric power generation, semiconductor refrigeration, semiconductor heating, all kinds of sensors
2. Application field of thermoelectric power generation
Semiconductor thermoelectric generators are mainly used in medical, oilfield, field, military, aviation and other fields. Oilfield-specific generators, such as those developed by Teledyne Inc., generate more than $1 billion in annual sales. Another market area of the project is the use of power generation units for solar energy, geothermal, industrial waste energy, etc., so that the heat energy can be directly converted into electricity. In addition, the semiconductor power generation module is small in size, light in weight and easy to carry. It can be widely used in scientific experiments, electrical manufacturing, instruments and instruments, etc.
With the increasing call of environmental protection and energy conservation in modern society, people are thinking more and more about how to effectively convert the heat generated by various heat sources on earth, such as solar heat, ocean heat, geothermal heat, industrial waste heat and heat generated by burning garbage into electricity. Therefore, semiconductor thermoelectric power generation technology will be more widely used.
3. Pay attention to the use of thermoelectric generator
Between the two sides of the thermoelectric module and the metal heat sink, it is better to coat with a layer of heat-conducting silicone grease to facilitate heat dissipation and reduce heat resistance. In addition, the thermoelectric components should be evenly heated, and should not be barbecued directly over an open flame. The power generation module should be firmly attached to the surface of the high-temperature object. The temperature of the hot surface of the high-temperature object should not exceed 200 degrees. Metal radiators must be installed on the cold side, and air-cooled, water-cooled, oil-cooled or other cooling measures should be taken to ensure that the heat transferred from the hot side can be carried away immediately, so as to maintain the temperature difference between the two sides of the power generation module and improve the efficiency of power generation.
4. Advantages of thermoelectric power generation: no noise, no pollution, simple installation, long life and stable performance