Some knowledge about the type selection of refrigeration chips

In order to select appropriate thermoelectric refrigeration devices for specific application conditions, we need to evaluate the whole system using refrigerators. For most application conditions, the use of standard cooler layout should be competent, but for other special application environments, special design may be required to meet electrical, mechanical and other requirements

In order to select appropriate thermoelectric refrigeration devices for specific application conditions, we need to evaluate the whole system using refrigerators. For most application conditions, the use of standard cooler layout should be competent, but for other special application environments, special design may be required to meet electrical, mechanical and other requirements. Although we encourage the use of standard devices whenever possible, First Cooling Technology is a specialized thermoelectric cooler developer and manufacturer, and we are happy to design unique devices to accurately meet your requirements.
Generally, correct working parameters need to be obtained through a series of iterative calculations. If it is still uncertain which thermoelectric device can adapt to the corresponding application conditions, we highly recommend that you contact our engineers for help.
Before the actual selection of thermoelectric cooler, the designer needs to answer the following questions:
At what temperature does the cooled object need to be kept?
How much heat needs to be transferred from the cooled object?
Is thermal response time important? If yes, how long does it take to change the temperature of the cooled object after the DC power supply is loaded?
What is the expected ambient temperature? Does the ambient temperature change significantly when the instrument is running?
How much heat is lost in the form of conduction, convection and radiation?
How much space is available for coolers and radiators?
What kind of power supply can be used?
Is it necessary to control the temperature of the cooled object? If yes, what is the control precision?
What is the expected radiator temperature when the instrument is running? If the ambient temperature fluctuates, will the radiator temperature change significantly? Etc. Of course, each application condition has its own specific requirements, and the importance is different. Since many critical requirements cannot be changed, the designer's main task is to select appropriate components and working parameters to finally obtain a fully reliable cooling system. In 9.5, we will give a design example to illustrate some concepts that will be involved in the typical production process.