What is the meaning of the semiconductor cooler and warmer
What is the meaning of the semiconductor cooler and warmer, the use of semiconductor effect made of cold and hot dual-purpose box, both refrigeration, is a small refrigerator; but also can be heated, is a kind of thermal insulation box. Many people do not quite understand the principle and use of this refrigerator? If you want to understand on the fast look at it
What is the meaning of the semiconductor cooling and heating box 1First, the use of semiconductor effect made of cold and hot dual-purpose box, both refrigeration, is a small refrigerator; but also heating, is a ^ kind of thermal insulation box. There is a semiconductor cooling and heating device, is composed of hundreds of pairs of semiconductor blocks of different materials. Each pair of semiconductor material conducts electricity in a different way, called N-type and P-type semiconductors. They are arranged in pairs, and the semiconductors are connected by two pieces of metal.
Second, so made of semiconductor devices, there is a ^ kind of strange effect, when the current from a * kind of semiconductor flow through another semiconductor, at the two ends of the junction will produce D small electric; water tanks generate exothermic and heat absorption phenomenon. That is, a ^ end of the exothermic heating, the other end of the heat absorption refrigeration. Current direction is opposite, exothermic or heat end is also opposite, the original end of the cooling can be changed to heat; exothermic and heat absorption according to the size of the current to decide how much.
Third, hot and cold box is the use of this semiconductor device to work. The inner layer of the box is made of thin metal, and the outer layer is made of heat-insulating material. The semiconductor device is installed close to the inner wall, one end of the aluminum and copper materials with a strong heat transfer capability. If heat absorption occurs, a large amount of heat is absorbed from the box through this material, lowering the temperature inside the box. The other end is fitted with a radiator, a small fan, the box absorbed 'heat from the radiator end to the outside world, to achieve the purpose of refrigeration.
Fourth, if you change the polarity of the power supply, the heat of the outside world is absorbed by the other end of the box to the box dispersed, the formation of the box temperature rises, get insulation. A volume of 10 liters of cold and warm box, in the ambient temperature of 20 ℃, the temperature inside the box up to _ the following; switch the power supply polarity, start heating, the temperature inside the box up to 70 redundant above. The structure is simple, safe and reliable, it is not like refrigerators and air conditioners, need to use mechanical compressors and condensers in order to refrigerate.
This kind of hot and cold box power consumption, easy to carry, widely used in families, hotels, health care, aquaculture, animal husbandry and scientific experiments.
What is the meaning of the semiconductor cooler and warmer 2The principle of the semiconductor cooler and warmer
In principle, the semiconductor cooling chip can only be regarded as a heat transfer tool, although the refrigeration chip will take the initiative to dissipate the heat for the chip, but still have to the hot end of the heat above the chip's heat generation to disseminate the heat. During the refrigeration chip work, as long as the temperature difference between the hot and cold side, the heat will be constantly through the lattice transfer, the heat will move to the hot side and through the heat dissipation equipment to disseminate out. Therefore, the cooling pad is an active cooling device for the chip, while for the whole system, it can only be regarded as an active heat conduction device. Therefore, the ZENO96 SmartCooler, which adopts a semiconductor cooling device, still needs to take an active cooling method to cool down the hot side of the cooling pad.
The role of fans and heat sinks is to dissipate heat from the hot side of the cooler, and the temperature at the hot side usually reaches about 100 degrees without a heat sink, which is very easy to exceed the limitations of the cooler, and the key to the efficiency of semiconductor refrigeration is to reduce the temperature at the hot side as quickly as possible to increase the temperature difference between the two ends and improve the cooling effect, so using a large heat sink and an active fan at the hot side will help to reduce temperature. Therefore, the use of large heat sinks at the hot end and the active cooling fan will help the excellent work of the cooling system. Under normal use, the temperature difference between the hot and cold ends will remain between 40 and 65 degrees. When a piece of N-type semiconductor material and a piece of P-type semiconductor material are linked into an electric coupling pair, the DC current is turned on in this circuit to produce a transfer of energy, the current flows from the N-type element to the connector of the P-type element to absorb heat and become the cold end by the P-type element to the connector of the N-type element to release the heat and become the hot end. The size of the heat absorption and release of heat is determined by the size of the current and the number of pairs of elements of semiconductor materials N, P. The following three points are thermoelectric refrigeration of the temperature difference between the electrical effect.
What is the meaning of the semiconductor cooling and heating box 3How to use the semiconductor cooling and heating box
1, the cold and heat shock box needs to be in a well-ventilated environment, and the ground needs to be flat and clean.
2, you need to connect a pressure of 6kg or less compressed air.
3, the power supply needs to use 380V, 3-phase 5-wire, 10 square meters of copper core wire.
4. Connect the power, and turn on the power, and then set the touch screen program.
5, program set up, open the door of the test box, put the semiconductor products into the test area, and then directly on the touch screen to confirm, so that the thermal shock box will be in accordance with your set up in advance the program for testing and cycling.