According to the requirements to select the thermoelectric cooling modules,TEC module ,peltier elements.
General requirements:
①, given the use of ambient temperature Th ℃
(2) The low temperature Tc ℃ reached by the cooled space or object
(3) Known thermal load Q (thermal power Qp, heat leakage Qt) W
Given Th, Tc and Q, the required pile and the number of piles can be estimated according to the characteristic curve of the thermoelectric module,peltier device.
As a special cold source, the thermoelectric cooling module(TE cooler) has the following advantages and characteristics in technical application:
1, Do not need any refrigerant, can work continuously, no pollution source no rotating parts, will not produce rotation effect, no sliding parts is a solid device, no vibration, noise, long life, easy installation.
2, 
5, The reverse use of the Thermoelectric Module,Pletier Module,Pletier device is the temperature difference power generation,Thermoelectric power generator,thermoelectric generator,TEG module is generally suitable for low temperature region power generation.
6, the power of the single cooling element of the thermoelectric cooling module peltier module TE module is very small, but the combination of the thermoelectric semiconductor N,P elements, with the same type of thermoeletric elements series, parallel method combined into the cooling system, the power can be done very large, so the cooling power can be achieved in the range of a few milliwatts to thousands of watts.
7,The temperature difference range of the peltier modules thermoelectric modules, from positive temperature 90℃ to negative temperature 130℃ can be achieved.
The thermoelectric cooling module Peltier module (Thermoelectric module) is input DC power supply work, must be equipped with a dedicated power supply.
1, DC power supply. The advantage of DC power supply is that it can be used directly without conversion, and the disadvantage is that the voltage and current must be applied to the peltier module.peltier element, thermoelectric module, and some can be solved by the series and parallel mode of the TEC modules,peltier elements, thermoelectric modules.
2. Ac current. This is the most common power supply, which must be rectified to DC to be used by the thermoelectric cooling modlules TEC modules, peltier modules. Since the Pletier module thermoelectric cooling module is a low voltage and high current device, the application of the first buck, rectification, filtering, some in order to facilitate the use of temperature measurement, temperature control, current control and so on.
3, Because the Thermoelectric module is a DC power supply, the ripple coefficient of the power supply must be less than 10%, otherwise it has a greater impact on the cooling effect.
4,The working voltage and current of the peltier device must meet the needs of the working device, for example: 12706 device, 127 is the thermoelectric module couples, PN of the electric couple logarithm, the working limit voltage of the thermoelectric module V= logarithm of the electric couple ×0.11, 06 is the maximum current value allowed through.
5, The power of the thermoelectric cooling devices cold and heat exchange must be restored to room temperature when the two ends (generally takes more than 5 minutes to carry out), otherwise it is easy to cause damage to the electronic circuit and the rupture of the ceramic plates.
6, The electronic circuit of the thermoelectric cooler power supply is common.
3 stage thermoelectric cooling module : TES3-20102T125 specification :
Imax: 2.1A (Q c = 0 △ T = △ T m a x T h = 3 0 ℃)
Umax: 14.4V (Q c = 0 I = I m a x T h = 3 0 ℃)
Qmax: 6.4W (I= I m a x △ T = 0 T h = 3 0 ℃)
Delta T > 100 C (Q c = 0 I = I m a x T h = 3 0 ℃)
Rac: 6.6±0.25 Ω (T h = 2 3 ℃)
Thmax: 120 C
Wire : Ф 0 . 5 m m metal wire or PVC /silicone wire
Wire length depend on customers requirement
Dimensional tolerance: ± 0 . 2 m m
Load condition:
Heat load is Q=0.5W, T c : ≤ – 6 0 ℃ ( T h = 2 5 ℃ , Air cooling )
Post time: Nov-20-2024
